Skocz do pozycji: 1.

Tytuł:

Comparative Study on NH3-SCR of High Entropy Mineral Catalytic Materials for Different Ratios of Rare Earth Concentrate/Rare Earth Tailing

Autorzy:

Meng, Zhaolei
Zhu, Chao
Wang, Jian
Wu, Wenfei

Powiązania:

https://bibliotekanauki.pl/articles/778344.pdf

Data publikacji:

2020

Wydawca:

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie

Tematy:

rare earth concentrate
rare earth tailings
catalytic denitrification
modification
mineral catalysis

Opis:

A series of high-entropy mineral catalytic materials were obtained by mixing rare earth tailings containing Fe oxide and rare earth concentrate rich in Ce in Baiyun Obo in different proportions, and by acid-base leaching and microwave roasting. The effects of different proportions of mixed rare earth minerals on the denitrification activity of the samples were analyzed by various techniques, including XRD, EDS and SEM. The mineral phase structure and surface morphology of the catalysts were analyzed. The surface properties of the samples were tested by TPD and XPS methods. The denitrification activity of the sample was simultaneously evaluated and compared in the microreactor. The results show that the denitration efficiency of the active powder is the best when the mixing ratio of rare earth tailings/rare earth concentrate is 1:1, the denitration rate can reach 82%. In summary, different proportions of optimization are extremely effective methods to improve catalyst performance.

Źródło:

Polish Journal of Chemical Technology; 2020, 22, 3; 70-78
1509-8117
1899-4741

Pojawia się w:

Polish Journal of Chemical Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Incidence and prevalence of Systemic Sclerosis (SSc) in Poland - differences between rural and urban regions

Autorzy:

Kanecki, Krzysztof
Goryński, Paweł
Tarka, Patryk
Wierzba, Waldemar
Tyszko, Piotr

Powiązania:

https://bibliotekanauki.pl/articles/986639.pdf

Data publikacji:

2017

Wydawca:

Instytut Medycyny Wsi

Tematy:

epidemiology
rare diseases
hospitalization

Opis:

Introduction. Systemic sclerosis (SSc) is a rare and potentially severe connective tissue disease, characterized by skin fibrosis and involvement of internal organs. Because of its rarity and heterogeneous clinical presentation, reliable epidemiological studies on SSc have been particularly difficult to carry out. Objectives. The purpose of this study was to present SSc epidemiology among hospitalized patients in Poland. Materials and method. The analysis was based on population-based administrative data, taken from a Polish hospital morbidity study carried out by the National Institute of Public Health between January 2008 – December 2012. Results. Analyzed data covered 9,049 hospitalization records. The final sample comprised 3,653 patients with first-time hospitalizations for SSc. The average age of the sample was 53 years (SD 16.2; range 0–91 years); 84% of patients were female and 16% male. Based on hospitalization registers, the average SSc incidence was estimated to be 1.9/100,000 per year and peak age of incidence was 55 years. The point prevalence was estimated to be 9.4/100,000 at the end of 2012. SSc was more common in females, with F:M ratio ranging from 6.2:1–4.6:1 depending on the year. Analysis of hospitalization trends revealed that overall numbers of SSc hospitalizations increased, while first-time hospitalizations decreased between 2008–2012. Clusters of higher incidence were observed in more rural regions vs. urban regions. Conclusion. Estimated incidence of SSc in Poland was comparable to reported incidence in other European countries. Analysis of demographic factors and reports of clusters of higher incidence may suggest the existence of environmental risk factors for the development of SSc. These observations may require further research.

Źródło:

Annals of Agricultural and Environmental Medicine; 2017, 24, 2
1232-1966

Pojawia się w:

Annals of Agricultural and Environmental Medicine

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Dziecko z niepełnosprawnością rzadką. Kilka refleksji pedagoga specjalnego

Autorzy:

Kamyk-Wawryszuk, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/2121917.pdf

Data publikacji:

2022-01-31

Wydawca:

Uniwersytet Gdański. Instytut Pedagogiki

Tematy:

niepełnosprawność rzadka
niepełnosprawność sprzężona
choroba rzadka
rare disability
multiple disability
rare disease

Opis:

Choroba rzadka (RD) może mieć przebieg gwałtowny, postępujący lub etapowy. Jej konsekwencje dla rozwoju danej osoby mogą przyczynić się do ograniczenia możliwości samodzielnego życia lub nieznacznie zmieniać jego jakość. W grupie pacjentów z RD są także dzieci z orzeczoną niepełnosprawnością sprzężoną. W ich przypadku można dostrzec, że trudności, jakie doświadczają, oraz zróżnicowany profil rozwoju, który jest charakterystyczny dla choroby rzadkiej, mogą nie mieścić się w zakresie pojęcia niepełnosprawności sprzężonej. Determinuje to wprowadzenie terminu niepełnosprawność rzadka. Celem artykuły jest opisanie pojęcia niepełnosprawności sprzężonej i rzadkiej oraz ukazanie ich charakterystycznych cech, jak i przeciwieństw w aspekcie choroby rzadkiej. Na podstawie analizy literatury można wskazać, że termin niepełnosprawność rzadka uwzględnia niejednorodny przebieg RD, zmienność jakości życia zarówno dzieci, jak i dorosłych na poszczególnych jej etapach leczenia eksperymentalnego lub zachowawczego oraz podczas niezbędnych, często długotrwałych hospitalizacji.
Rare disease (RD) can procced rapidly, progressively or stepwisely. Its consequences for the person’s development may contribute to limiting the possibility of independent life or may only slightly affect it. The group of patients with RD also includes children with multiple disability. In their case, it can be seen that the difficulties they experience, and varied development profile characteristic for a rare disease may not fall within the scope of the definition of the multiple disability. This determines to implement the definition of rare disability. The goal of this paper is to describe the definition of multiple and rare disability and to show their characteristic features as well as opposites in the aspect of rare disease. Basing on the literature analysis might be indicated that the term ‘rare disability’ includes heterogenous course of RD, the variability of the quality of life both children and adults at different stages of experimental or conservative treatment and during necessary, often long-term hospitalisations.

Źródło:

Niepełnosprawność; 2021, 43; 131-148
2080-9476
2544-0519

Pojawia się w:

Niepełnosprawność

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Adsorption of lanthanum(III) and yttrium(III) on kaolinite: kinetics and adsorption isotherms

Autorzy:

Zhou, Fang
Feng, Jian
Xie, Xiong
Wu, Baihong
Liu, Qi
Wu, Xiaoyan
Chi, Ruan

Powiązania:

https://bibliotekanauki.pl/articles/109951.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

adsorption
kaolinite
rare earth
kinetics

Opis:

Experimental investigations were carried out using kaolinite to adsorb two rare earth ions, lanthanum ion (La³⁺) and yttrium ion (Y³⁺), which will provide some useful information and new insights on the mineralization process and fractionation phenomenon of weathered crust elution-deposited rare earth ores. The results showed that the equilibrium adsorption capacity of Y³⁺ is greater than La³⁺ under the same experimental conditions. The adsorption of rare earth ions presents strongly temperature dependent indicating an endothermic adsorption process. The pseudo-first-order kinetic model and the pseudo-second-order kinetic model were applied to discuss the adsorption kinetics. It was found that the adsorption rate of rare earth follows the pseudo-second-order kinetic model among the adsorption temperature range. Furthermore, the adsorption process of rare earth ions on kaolinite followed the Langmuir isotherm model confirmed by the correlation of experimental equilibrium data to standard isotherm model, Langmuir and Freundlich isotherms. The activation energies for the adsorption of La³⁺ and Y³⁺ on kaolinite are 28.1903 kJ/mol and 25.4190 kJ/mol, respectively. All kaolinite before and after adsorption were characterized by XRD and SEM-EDX to understand the adsorption mechanism. The obtained results suggested that the adsorption of La³⁺ and Y³⁺ on kaolinite is an endothermic and chemisorption process.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 4; 928-939
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Adults with cystic fibrosis – medical challenges and a psychosocial adaptation in the context of risk of a premature death

Autorzy:

Renata, Zubrzycka,

Powiązania:

https://bibliotekanauki.pl/articles/889121.pdf

Data publikacji:

2020-06-02

Wydawca:

Akademia Pedagogiki Specjalnej im. Marii Grzegorzewskiej. Wydawnictwo APS

Tematy:

rare disease
cystic fibrosis
adults

Opis:

Cystic Fibrosis (CF) is the most common life-limiting genetic disorder of Caucasians. It impairs the functions of many organs with its greatest effects on the lungs and digestion. Treatment of the disease involves a multi- component regimen, including airway clearance techniques, nebulized medications, antibiotics, pancreatic enzymes and increased caloric intake. Cystic fibrosis is a burden for patients and their families in the context of their daily life tasks. The article presents generic medical, psychosocial problems of adult patients with CF, which are still little known in Poland. The detailed issues are: medical characteristics of cystic fibrosis as a rare disease, organizational conditions of rehabilitation, specific psychosocial problems including: a depression, an anxiety and a reproductive health in cystic fibrosis in the context of a premature death.

Źródło:

Człowiek - Niepełnosprawność - Społeczeństwo; 2020, 48(2); 83-96
1734-5537

Pojawia się w:

Człowiek - Niepełnosprawność - Społeczeństwo

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Application of chromatographic plate theory on the weathered crust elution-deposited rare earth ore with carboxylate

Autorzy:

Zhang, Zhenyue
Wang, Guangshuai
Li, Chunhua
Chi, Ruan
Long, Fei
Chen, Zhuo
Chi, Xiao Wang
Liu, Defeng

Powiązania:

https://bibliotekanauki.pl/articles/1446022.pdf

Data publikacji:

2021

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

weathered crust elution-deposited rare earth ore
carboxylate ammonium
mass transfer
theory plate
rare earth

Opis:

To improve the leaching process of rare earth and reduce the impurities in the leachate, the carboxylate ammonium, such as ammonium acetate, ammonium citrate and ammonium tartrate, were selected as lixiviant to compare the effects of concentration, flow rate, pH and temperature on leaching mass process of rare earth and aluminum. Meanwhile, the leaching behaviors of rare earth and aluminum leached by three kinds of carboxylate ammonium were analyzed by chromatographic plate theory. The relationship between the flow rate and height equivalent (HETP) could fit well with the Van Deemter equation and there was an optimal flow rate (uopt) for the leaching of the rare earth and aluminum. Besides, the conditions of carboxylate ammonium lixiviant were optimized. The optimum concentrations of ammonium acetate, ammonium tartrate and ammonium citrate were 15 g/L, 25 g/L and 5 g/L respectively, the leaching flow rate was 0.50 mL/min, the pH value was approximatively 7.00 and the leaching temperature was 293 K to 303 K. At these conditions, the mass transfer efficiencies of three ammonium carboxylates for rare earth and aluminum was in the order of ammonium acetate > ammonium tartrate > ammonium citrate. Moreover, the ammonium acetate could commendably inhibit aluminum ions entering the lixivium.

Źródło:

Physicochemical Problems of Mineral Processing; 2021, 57, 4; 48-62
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Bridging East with West of Europe – a comparison of orphan drugs policies in Poland, Russia and the Netherlands

Autorzy:

Baran, Aleksandra
Czech, Marcin
Kooiker, Coen
Hołownia, Malwina
Sykut- Cegielska, Jolanta

Powiązania:

https://bibliotekanauki.pl/articles/895663.pdf

Data publikacji:

2018-12-31

Wydawca:

Polskie Towarzystwo Farmaceutyczne

Tematy:

reimbursement
rare diseases
orphan drugs
disease registries
national plan for rare diseases
new born screening

Opis:

The goal of this article is to provide an in-depth review of rare disease policies and the reimbursement of ODs in 3 European countries, two EU members (Poland, the Netherlands) and a non-EU one (Russia). A review of publicly available information on rare disorder policies and HTA processes was performed. Experts were consulted for unclear or scarce information. Russia has a five times higher frequency threshold for its rare disease definition than Poland and the Netherlands (both using the EU definition). The Netherlands has vastly increased its disease registries by instituting 300 expert centres via its National Plan, in Poland there are only 6 registries while in Russia one central registry exists. All 3 countries have an HTA process in place, however, the Russian one is relatively undeveloped. The access to ODs in the Netherlands is the broadest with 80 out of 83 EMA approved ODs reimbursed in 2015; Poland reimbursed 49, whereas Russia reimbursed 4 on the federal level and 43 in Moscow region. In all countries new rare disease policies are under development. The availability of healthcare systems solutions and the reimbursement of ODs differs greatly in all 3 countries, mainly in Russia. Even though both states are EU member with common regulations and access to EMA approved drugs, marked differences between Poland and the Netherlands in the range of policies, access to treatments and screening programs exist.

Źródło:

Acta Poloniae Pharmaceutica - Drug Research; 2018, 75, 6; 1409-1422
0001-6837
2353-5288

Pojawia się w:

Acta Poloniae Pharmaceutica - Drug Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Dziecko z mukopolisacharydozą w przedszkolu – perspektywa terapeutów
Child with MPS in Kindergartens – the Therapists’ Perspective

Autorzy:

Kamyk-Wawryszuk, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/15838253.pdf

Data publikacji:

2018-09-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Mucopolysaccharidosis (MPS)
rare diseas
therapy
kindergarten

Opis:

Mucopolysaccharidosis (MPS) is a rare and progressive disorder. It gradually causes the disappearance of the child’s learned skills. There are few scientificpapers concerning the rules of conduct with a child of preschool age with MPS, and therefore therapists’ work often comes down to searching for adequate methods of therapy in order to preserve the skills acquired by the pre-schooler as long as possible. The main research question was: “How does the treatment of a child with mucopolysaccharidosis at an Inclusive Preschool look like from the perspective of therapists?” Four therapists working with two boys suffering from MPS were surveyed in the study.

Źródło:

Studia Edukacyjne; 2018, 49; 299-314
1233-6688

Pojawia się w:

Studia Edukacyjne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Germanate glasses co-doped with Ce3+/Ln3+ (Ln = Pr, Tb, Dy) for white light emitting diodes

Autorzy:

Górny, Agata
Sołtys, Marta
Pisarska, Joanna
Pisarski, Wojciech A.

Powiązania:

https://bibliotekanauki.pl/articles/173993.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

glasses
rare earth ions
white luminescence

Opis:

Glasses doped with lanthanides ions may be good white light emitters due to their interesting physical and spectroscopic properties. In this paper, the optical spectroscopy of rare earths doped glasses with a special emphasis on application as white LED were presented. The luminescent glass materials containing Ln³⁺ (Ln = Pr, Tb, Dy) and Ce³⁺ ions were obtained. The glasses samples were prepared by a traditional melt-quenching technique. The optical properties of glasses containing various concentrations of rare earth ions were analyzed. It was observed that luminescence bands corresponding to characteristic transitions of Ln³⁺ and cerium ions are present on spectra measured under direct excitation of Ce³⁺. Therefore, it indicates that the energy transfer process between Ce³⁺ /Pr³⁺, Ce³⁺ /Tb³⁺, Ce³⁺ / Dy³⁺ ions in glasses occurs. Some parameters such as correlated color temperature (CCT) and chromaticity coordinates (CIE) that characterize white LEDs were analyzed and discussed in detail.

Źródło:

Optica Applicata; 2019, 49, 3; 383-391
0078-5466
1899-7015

Pojawia się w:

Optica Applicata

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Possibilities of recovery and separation of rare earth elements

Autorzy:

Fila, Dominika

Powiązania:

https://bibliotekanauki.pl/articles/2079965.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej

Tematy:

rare earth elements
resources
recovery
separation

Opis:

Rare earth metals are a group of elements widely used in high technology products. They are included in the group of critical mineral resources for the EU economy. Rare earth elements are found in computers and mobile phones, as well as in low-emission energy technologies. They are also applied in chemical processes as catalysts in the oil refining. Some of them occur even in considerable quantities in the earth's crust but not very often in the concentrations justifying the profitability of their extraction. Additionally, the constantly growing demand and the current market situation cause that alternative resources of rare earth elements recovery are sought after. Therefore, the recovery and separation methods as well as recovery from the secondary sources are becoming more and more important. The following paper presents the possibilities of recovery and separation of rare earth elements from primary and secondary sources.

Źródło:

Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2018, 73, 1; 99-110
2083-358X

Pojawia się w:

Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:

Early support and early intervention as a support for the child and their family based on the biographies of parents of children with rare genetic diseases
Wczesna interwencja i wczesne wspomaganie jako wsparcie dla dziecka i jego rodziny w biografiach rodziców dzieci z rzadkimi chorobami genetycznymi

Autorzy:

Klajmon-Lech, Urszula

Powiązania:

https://bibliotekanauki.pl/articles/941212.pdf

Data publikacji:

2016

Wydawca:

Medical Communications

Tematy:

early intervention
family
rare genetic disease

Opis:

Receiving information on child’s disease or disability is a very difficult and often traumatic experience for the parents. Researchers investigating this issue indicate an array of negative parental emotional reactions such as: a sense of loss, loneliness, shock, mutual blaming, uncertainty, anxiety. Early intervention, understood as interdisciplinary services provided by physiotherapists, doctors, pedagogues, psychologists, and other specialists in the first years of child’s life, is equally needed by both children themselves and their parents, who, owing to the provided education and support, mature to the role of a parent-caretaker-therapist. The paper will address the results of a research conducted among parents of children with rare genetic diseases. The respondents shared their experiences associated with early intervention, assessed the quality of the received support as well as its effects on the child and the family. The study was conducted based on qualitative research methodology. I conducted narrative interviews with the mothers and fathers of children affected by rare chromosomal disorders. The analysis of narration focused on the experiences associated with implemented or non-implemented early intervention. Some of the parents of children with rare chromosomal syndromes had no opportunity to participate in early intervention; respondents in this group complained about specialists ignoring the reported problems and described disease symptoms as well as being involved in a “therapeutic pursuit” for a long time. The other group included parents participating in early intervention programmes. The experience of a rare disease increased their need to expand their knowledge on the disease and treatment options, which certainly presented a significant challenge for specialists. However, even in such a difficult situation it is possible to implement a model early intervention programme, as reported by one of respondents.
Otrzymanie informacji o chorobie lub niepełnosprawności dziecka jest dla jego rodziców doświadczeniem bardzo trudnym, często traumatycznym. Badacze problemu wskazują na szereg negatywnych reakcji emocjonalnych występujących u rodziców: poczucie straty, osamotnienie, szok, wzajemne obwinianie się, niepewność, lęk. Wczesna interwencja, rozumiana jako interdyscyplinarne świadczenia rehabilitantów, lekarzy, pedagogów, psychologów i innych specjalistów w pierwszych latach życia dziecka, potrzebna jest w równym stopniu samemu pacjentowi, jak i jego rodzicom, którzy dzięki wsparciu i pedagogizacji dojrzewają do nowej roli rodzica – opiekuna – terapeuty. W artykule powołam się na wyniki badań przeprowadzonych wśród rodziców dzieci z rzadkimi chorobami genetycznymi. Respondenci dzielili się ze mną swoimi doświadczeniami związanymi z wczesną interwencją, oceniali jakość otrzymanej pomocy oraz jej efekty dotyczące dziecka i rodziny. Badania były prowadzone zgodnie z metodyką badań jakościowych. Przeprowadziłam wywiady narracyjne z matkami i ojcami dzieci z rzadkimi zespołami chromosomowymi. Analiza narracji odnosiła się do doświadczeń związanych z korzystaniem lub niekorzystaniem z wczesnej interwencji. Część rodziców dzieci z rzadkimi zespołami chromosomowymi nie miała możliwości korzystania z usług wczesnej interwencji – badani z tej grupy skarżyli się na lekceważenie przez specjalistów zgłaszanych problemów i opisywanych symptomów choroby, przez dłuższy okres doświadczali także „gonitwy terapeutycznej”. Do drugiej grupy należeli rodzice korzystający z wczesnej interwencji. Doświadczenie rzadkiej choroby zwiększyło ich potrzebę pogłębienia wiedzy o chorobie i sposobach leczenia, co z pewnością było dużym wyzwaniem dla specjalistów, jednak również w tak trudnym przypadku możliwe jest wzorcowe działanie wczesnej interwencji, o którym opowiada jedna z respondentek.

Źródło:

Psychiatria i Psychologia Kliniczna; 2016, 16, 4; 229-236
1644-6313
2451-0645

Pojawia się w:

Psychiatria i Psychologia Kliniczna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

COGNITIVE FUNCTIONING AND AUTONOMY OF PATIENTS WITH DUCHENNE MUSCULAR DYSTROPHY

Autorzy:

Anikiej, Paulina
Mański, Arkadiusz
Bidzan, Mariola

Powiązania:

https://bibliotekanauki.pl/articles/2137737.pdf

Data publikacji:

2018-05-08

Wydawca:

Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica

Tematy:

rare disease
attention
memory
executive functions

Opis:

Cognitive problems and a deepening dependence on one’s immediate environment inherently accompany Duchenne Muscular Dystrophy (DMD). The disease is progressive, and the size of the dystrophin gene determines the extraordinary complexity of the causes of this disease at the genetic and molecular level. The aim of the study was to characterize the cognitive problems and the extent of independence of patients with genetically confirmed DMD. An attempt was also made to reconstruct the patient's life history in three periods: before the appearance of the first symptoms, during the search for a diagnosis and after confirming the diagnosis of DMD. The study group consisted of male patients between 10 and 13 years of age (N = 14). The Diagnosis of Cognitive Functions Battery - PU1 and an experimental tool for studying autonomy were used. Information on the condition of the attention, memory and executive functions of patients was obtained. The study of autonomy measurably supplemented knowledge in terms of the degree of the patients’ dependence on the environment with regard to everyday functioning. The best functioning component of attention in the examined patients is orientation (o) (13 patients achieved average results in this aspect). Selectivity (s) turned out to be the weakest component, as only five patients obtained average results (the others obtained low results) in this aspect. Autonomy results (AU) indicate group diversity and inter-subject variability in the disease progression (subjects scored from 6 to 47 points). The clinical picture of the disease is not homogeneous. Patients, despite their similar age, differ in the progression of the disease and the resulting effects. This induces the need for an individual approach to each patient and the preparation of a unique set of therapeutic interactions for each of them.

Źródło:

Acta Neuropsychologica; 2018, 16(2); 157-166
1730-7503
2084-4298

Pojawia się w:

Acta Neuropsychologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Magnetic and hyperfine interaction in YbFe4Al8 compound

Autorzy:

Gaczyński, P.
Drulis, H.

Powiązania:

https://bibliotekanauki.pl/articles/147203.pdf

Data publikacji:

2004

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

Mössbauer effect
rare earth
iron compounds

Opis:

57Fe Mössbauer spectra of YbFe4Al8 of the tetragonal ThMn12 structure have been investigated. Mössbauer measurements at the lowest temperatures yield information on the iron population in three crystallographic sites 8f, 8j and 8i available for Fe atoms. The obtained results indicate on the coexistence of magnetically ordered and paramagnetic-like Fe moments within antiferromagnetic phase of YbFe4Al8. The MS measurements show that the onset of short range antiferromagnetic interaction in the Fe sublattice takes place at 220 K.

Źródło:

Nukleonika; 2004, 49,suppl.3; 33-36
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Plant growth regulators and sucrose requirements for in vitro induction of shoots from different explants of Atalantia monophylla (L.) Corr. Serr.

Autorzy:

Manokari, M.
Shekhawat, Mahipal S.

Powiązania:

https://bibliotekanauki.pl/articles/1182944.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

atalantia monophylla
in vitro
rare
explants
pgrs

Opis:

An efficient in vitro regeneration and conservation system depend on the healthy culture induction from the suitable explants. Culture induction is a significant stage when very small plant material exists from the rare species. It is necessary to develop culture induction protocol from various explants to conserve the valuable plant species. Atalantia monophylla is a rare species with life giving properties. Shoots were induced from the shoot tip, node and internode explants. Among these the nodal shoot segments were reported most appropriate explant for the induction of shoots from the nodal meristems. MS medium (Murashige and Skoog) proved better than the Woody Plants (WP) medium in bud breaking. Sucrose at 3% level was optimum concentration for the establishment of cultures than the other concentrations evaluated. Shoot tips responded on MS medium supplemented with 0.5 mg L-1 each of BAP and Kin, nodal shoot segments responded better on MS medium augmented with 1.0 mg L-1 BAP . Half strength MS medium supplemented with 2,4-D (1.0 mg L-1) induced maximum responsive callus (87%) from the internode explants.

Źródło:

World Scientific News; 2016, 49, 2; 283-294
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Influence of active admixtures onto tellurite glass refractive index

Autorzy:

Reben, M.
Wasylak, J.
Jaglarz, J.

Powiązania:

https://bibliotekanauki.pl/articles/200746.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

tellurite glass
rare earth ions
refractive index

Opis:

The goal of this work was to investigate the influence of rare earth ions such as Tm3+, Yb3+ on physico-chemical properies of tellurite glass from the TeO2-WO3-PbO-PbF2-Na2O system. The thermal characteristic of tellurite glass Tm3+, Yb3+ doped have been presented. The effect of the glass crystallization on thermal stability of the glass and crystallizing phases formed upon heat treatment were investigated by DTA/DSC/, XRD methods. The spectral dependence of ellipsometric angles of the tellurite glass samples, have been studied. The influence of ions of rare earth elements, i.e. Tm 3+ and Yb3+, onto changes of refractive index of glass P1 (without RE admixture) were examined. The optical measurements were conducted on Woollam M2000 spectroscopic ellipsometer, in spectral range of 190–1700 nm.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2010, 58, 4; 519-522
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Rare and endangered vascular plant species of Malе Opillya (Lviv region, Ukraine)

Autorzy:

Tasenkevich, Lidia
Seniv, Marya
Skrypec, Khrystyna

Powiązania:

https://bibliotekanauki.pl/articles/2173109.pdf

Data publikacji:

2021-11-19

Wydawca:

Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie

Tematy:

endangered species
rare species
threat categories
Ukraine

Opis:

Male Opillya (586 km2) is a small part of the Volhyn-Podillya Uplands, located southeast of Lviv and is characterised by the presence of various forms of landscapes, which led to the diversity of its phytobiota. Although located in the neighborhood of Lviv - one of the botanical centers, it was overlooked by botanists in the 19th and 20th centuries. The aim of the study, results of which are presented, was to determine composition of rare and endangered species of Male Opillya’s flora. The article provides a list of these species according to their conservation status defined by the Red book of Ukraine, the list of regionally rare species in Lviv region, the IUCN list, the CITES Appendix №2, and the Bern Convention. Based on the conducted analyses, it can be concluded that 143 species of flora in Male Opillya may disappear due to increasing anthropopressure.

Źródło:

Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2021, 6; 48-59
2543-8832
2545-0999

Pojawia się w:

Annales Universitatis Paedagogicae Cracoviensis Studia Naturae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

The segetal flora of the Mazowiecki Landscape Park.

Autorzy:

Skrajna, Teresa
Skrzyczyńska, Janina
Ługowska, Maria

Powiązania:

https://bibliotekanauki.pl/articles/2199575.pdf

Data publikacji:

2010-06-01

Wydawca:

Instytut Hodowli i Aklimatyzacji Roślin

Tematy:

Mazowiecki Landscape Park
segetal flora
rare species

Opis:

The present state and characteristics of the segetal flora of the Mazowiecki Landscape Park and its buffer zone are described. Flora of the agrocenoses of the Park and its buffer zone is rich and includes 221 species. A _large differentiation of habitats, A wide contact zone with natural communities and traditional methods of cultivation affect its biodiversity. Rare species constitute more than half of the total species recorded in the agrocenoses of the Park and its buffer zone. In total, 25 of them are included in various categories of threat (Zarzycki, Wojewoda, Heinrich 1992). Among the most endangered are such plants, as, Helichrisum arenarium, Aphanes arvensis, Melandrium noctiflorum, Bromus secalinus, Agrostemma githago, Lathytus tuberosus, Kickxia elatine, Centunculus minimus, Hypericum humifusum, Peplis portula, Centaurium pulchellum, Radiola linoides and Myosurus minimus. Apophytes (142 species) prevail over anthropophytes (76 species) in the studied flora. Species of meadow and waterside communities (93 species) predominate among apophytes, whereas in the group of anthropophytes, archaeophytes (59 species) are the most numerous. Analysis of persistence and biological types showed domination of short-lived species over perennials and therophytes over other life forms...

Źródło:

Plant Breeding and Seed Science; 2010, 61; 93-104
1429-3862
2083-599X

Pojawia się w:

Plant Breeding and Seed Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Actual State and Changes of Flora and Vegetation in the Broczówka Steppe Reserve

Autorzy:

Cwener, Anna
Nowak, Marcin

Powiązania:

https://bibliotekanauki.pl/articles/764985.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego

Tematy:

steppe reserve
rare and endangered species
succession

Opis:

This paper presents floristic characterization of xerothermic plant associations and analysis of changes of flora within Broczówka steppe reserve. The floristic research was carried out in 2004-2009. Numerous species that were noted here almost 30 years ago were not found in the present study, the size of other populations decreased. Nevertheless, many plant species occurring in the reserve are rare, endangered or protected. Six major plant associations, impoverished form of two ones and one plant community are distinguished in the whole area of the reserve. Occurrence of two plant associations was not confirmed.

Źródło:

Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2011, 7; 163-176
1730-2366
2083-8484

Pojawia się w:

Acta Universitatis Lodziensis. Folia Biologica et Oecologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

FAT-FREE, HIGH IN CALORIES. MANAGEMENT OF DIETS IN THE CASE OF A RARE METABOLIC DISORDER

Autorzy:

Chowaniec-Rylke, Anna

Powiązania:

https://bibliotekanauki.pl/articles/647105.pdf

Data publikacji:

2018

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

Tematy:

medical anthropology, rare disease, diet, agency, disability

Opis:

LCHADD is a rare metabolic disorder with a worldwide prevalence estimated at 1/250,000. However in Poland birth prevalence is predicted to be 1/120,000 and as high as 1/20,000 in the Pomeranian district. The bodies of LCHADD patients cannot produce the enzymes which are key in the process of fatty acid oxidation. That means that life-threatening episodes occur only when the body is “fasting” – the calorie intake is lower than the body’s needs. There are no known cures or medications for LCHADD, but with proper treatment patients can improve and survive into adulthood. The treatment involves a strict diet, high in calories but fat-free. In this article I will sketch the dietary choices made by patients’ parents. Those findings will be established based on anthropological fieldwork conducted for over a year among those families. My intention is to show how decisions made by caregivers regarding an ill child’s diet can be interpreted in the broader context of consumer society, agency and a social model of disability.

Źródło:

Studia Humanistyczne AGH; 2018, 17, 2
2084-3364

Pojawia się w:

Studia Humanistyczne AGH

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Lithologically-related rare earth element variations the Mio-Pliocene Poznań Formation (Poland)

Autorzy:

Retka, J.

Powiązania:

https://bibliotekanauki.pl/articles/2059369.pdf

Data publikacji:

2018

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

Poznań Formation
rare earth elements
clay lithotypes

Opis:

Concentrations of rare earth elements (REEs) were determined in 129 clay samples collected from the Mio-Pliocene Poznań Formation in Poland. The REEs occur in a relatively wide range from 58.2 to 1,709 mg/kg. Low North American Shale Composite (NASC)-normalized total REE contents with heavy rare earth element (HREE) depletion were noted in most of the samples analysed. Small variations were detected in the REE contents in the lithologies distinguished. Red clays are characterised by slightly lower REE concentrations relative to green and grey clays. All the Poznań Formation clays exhibit a negative Eu anomaly when normalized to the average of chondrites. Values increase according to the following sequence: grey clays < red clays < green clays. The NASC-normalized REE concentration curves show a positive Eu anomaly. The LaNASC/YbNASC ratio indicates HREE depletion. A small variation in this ratio was observed in the sequence green clays > grey clays > red clays. The variability of the REE contents of the Poznań Formation decreased from west to east.

Źródło:

Geological Quarterly; 2018, 62, 1; 146--154
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Leaching kinetic study of Y and Eu from waste phosphors using hydrochloric acid solution containing hydrogen peroxide

Autorzy:

Yu, M.
Jiang, Z.
Mei, G.
Chen, X.

Powiązania:

https://bibliotekanauki.pl/articles/949690.pdf

Data publikacji:

2018

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

waste phosphors
leaching
kinetics
rare earth elements

Opis:

The leaching kinetics of Y and Eu from waste phosphors using a hydrochloric acid (HCl) solution containing hydrogen peroxide (H2O2) were investigated. Characterization of the waste phosphors was performed using XRD to ascertain the phases as (Y0.95Eu0.05)2O3 (red phosphors), (Ce0.67Tb0.33)MgAl11O19 (green phosphors), (Ba0.9Eu0.1)Mg2Al16O27 (blue phosphors), and SiO2 (quartz). The influence of factors such as HCl concentration, addition amount of H2O2, temperature, and reaction time on the leaching performance of Y and Eu was investigated. The maximum leaching recoveries of Y (99.87%) and Eu (88.72%) were obtained at 4 M HCl, 0.2 cm3/g H2O2, 60 ℃ temperature, and 180 min of reaction time at a liquid-to-solid ratio of 7.5 cm3/g. Leaching kinetic results showed the best fit with the shrinking sphere model (1-(1-x)1/3)=kct), ensuring that the overall leaching process was governed by a chemical control mechanism. Activation energies of 42.35 and 33.28 kJ/mol were acquired for leaching of Y and Eu, respectively, at 40-70 ℃, which further supports the proposed chemical control leaching process.

Źródło:

Physicochemical Problems of Mineral Processing; 2018, 54, 2; 238-248
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Solubility of Eskisehir thorium/rare earth ores in sulphuric and nitric acids

Autorzy:

Kursun, I.
Tombal, T. D.
Terzi, M.

Powiązania:

https://bibliotekanauki.pl/articles/109924.pdf

Data publikacji:

2018

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

thorium
rare earth elements
bastnaesite
leaching
solubility

Opis:

Nuclear energy is considered as one of the most important energy resources in the world. Thorium (Th) has a significant potential to be used in electricity production by nuclear energy since its existence is not depended on the presence of another radioactive elements, and it has larger potential reserves than uranium. Bastnaesite ((Ce, La)CO3F) is one of the minerals from which Th can be economically extracted. In this study, solubility of bastnaesite containing ore obtained from Eskisehir, Turkey was investigated by leaching with H2SO4 and HNO3 in terms of leaching performance of thorium and some rare-earth elements (Ce, Nd, La). In this context, representative samples were taken from three different areas in Eskisehir-Kizilcaoren region, and a composite sample was prepared to be used for the leaching experiments. The effects of several parameters such as the solid ratio, leaching time, acid amount and pulp temperature, on dissolution efficiencies of Th, Nd, Ce and La was investigated. The best results were obtained using 3.42 mol/dm3 HNO3, solid–to–liquid ratio of 35%, 120 min leaching time and 60 oC temperature. Under these optimum conditions, the dissolution efficiencies of Th, Ce, Nd, and La were obtained as 94%, 82%, 77% and 70%, respectively.

Źródło:

Physicochemical Problems of Mineral Processing; 2018, 54, 2; 476-483
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Phytoextraction of rare earth elements

Autorzy:

Gmur, Dominika
Siebielec, Grzegorz

Powiązania:

https://bibliotekanauki.pl/articles/2143646.pdf

Data publikacji:

2022-09

Wydawca:

Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy

Tematy:

rare earth elements
phytoextraction
hyperaccumulation
environmental remediation

Opis:

Rare earth elements (REE) are a group of 17 elements with similar physicochemical properties. Most of the world’s REE extraction belongs to China. Due to the growing demand for REE and limited resources, the European Commission has identified REE as critical materials. On the other hand, little is known so far about the possible effects of long-term exposure of living organisms and the ecosystem to REE. Therefore, potential solutions for the recovery of distributed REE are being sought. Phytoextraction is a method that allows the recovery of elements from the environment. For this purpose, two strategies are gener- ally used: the use of plants with the natural ability to accumulate REE (hyperaccumulators) and the support of the process through the use of chelators. Twenty two species have been identified as REE hyperaccumulators, e.g. Phytolacca americana, Dicranop- teris linearis, Blechnum niponicum or Carya tomentosa. For the total REE, an accumulation limit of 100 mg kg-1 dry weight was established. Natural chelators are used as additives, e.g. humic acids or low molecular weight acids, as well as synthetic ones: EDTA or EGTA. In addition, the efficiency of the process is also influenced by other factors, such as the sorption capacity of the soil, the content of organic matter in the soil or soil pH. The aim of this article is to present the plant species useful in REE phy- toextraction and the potential for enhancing the method with the use of chelators.

Źródło:

Polish Journal of Agronomy; 2022, 50; 3-11
2081-2787

Pojawia się w:

Polish Journal of Agronomy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

A Study on Recovery of Cerium by Leaching Solvents from NiMH Waste Battery

Autorzy:

Kim, Boram
Kim, Dae-Weon
Choi, Hee Lack

Powiązania:

https://bibliotekanauki.pl/articles/2203709.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

NiMH
cerium recovery
rare earth composite powder

Opis:

In this study, a rare earth composite precipitation (NaREE(SO4)2H2O, REE: Ce, La, Nd, Pr) powder was prepared from spent nickel hydride batteries, and cerium hydroxide was separated from its constituent rare earth elements. As Ce(OH)3 can be oxidized more easily than other rare earth elements (La, Nd, and Pr), Ce3+ was converted to Ce4+ by injecting air into the leachate at 80°C for 4 h. The oxidized powder was leached using sulfuric and hydrochloric acids. Because Ce(OH)4 has low solubility, it can be separated from other elements. Therefore, the pH of the leaching solution was adjusted for selective precipitation. To determine the crystalline phase, recovery, and grade of the recovered Ce(OH)4, the powders were analyzed using X-ray diffraction, scanning electron microscopy, and inductively coupled plasma optical emission spectroscopy. The grade and recovery rates of the Ce(OH)4 powder recovered from the rare earth composite precipitate using sulfuric acid as the solvent were 95% and 97%, respectively, whereas those of the powder recovered using hydrochloric acid were 96% and 95%, respectively.

Źródło:

Archives of Metallurgy and Materials; 2023, 68, 1; 103--106
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Effect of polyacrylamide on the process of removing impurities in the rare earth leachate

Autorzy:

Wu, Xiaoyan
Zhou, Fang
Liu, Chufan
Feng, Jian
Zhang, Zhenyue
Chi, Ruan

Powiązania:

https://bibliotekanauki.pl/articles/1448504.pdf

Data publikacji:

2021

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

polyacrylamide
rare earth leachate
impurity removal
flocs

Opis:

The impurity removal process of the rare earth (RE) leachate is usually accompanied by the formation of flocs, and a certain amount of polyacrylamide flocculant needs to be added in this process. However, few studies have investigated the effect of the flocculant on the impurity removal process. Therefore, this paper compares the influence on the process of removing impurities with or without the adding of polyacrylamide (PAM). The results showed that the addition of PAM had little effect on the removal rate of impurities, but it was conducive to the recovery of RE. When ammonium bicarbonate was firstly adopted to regulate the solution pH to 5.0, and then sodium sulfide was used to adjust the pH to 5.2, and 0.5 mL/100 mL of PAM was added to the leachate, 96% $Al^{3+}$ and 98% $Zn{2+}$ were removed from the leachate, while 95% RE was maintained. In addition, PAM could accelerate the settlement of flocs and then shorten the production cycle. The increase in RE recovery rate may be due to the addition of PAM to shorten the settling time of the flocs, thereby reducing the RE ions adsorbed during the flocculation process and increasing the recovery rate of the RE.

Źródło:

Physicochemical Problems of Mineral Processing; 2021, 57, 1; 182-191
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Lichens of the Frankenhalvøya Peninsula (Northern of Barentsøya, Svalbard)

Autorzy:

Konoreva, Liudmila
Chesnokov, Sergey

Powiązania:

https://bibliotekanauki.pl/articles/16538451.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Tematy:

Arctic
lichen biota
new records
Norway
rare species

Opis:

This paper contributes to the studies on the lichen diversity of Barentsøya. It covers 211 species, of which four ( Buellia schaereri, Myriolecis zosterae var. palanderi, Rhizocarpon furfurosum, R. leptolepis) are reported for the first time for the Svalbard archipelago. Additionally, 84 of the species are reported for the first time for Barensøya. Our study includes 2 subspecies as well, both new for Barentsøya. Thirty-six species (16.8% among the identified species) are rare in Svalbard, whereas more than two thirds (70.1% from identified in the Barensøya) are relatively widespread species in Svalbard and the Arctic.

Źródło:

Polish Polar Research; 2022, 43, 1; 37-68
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 27.

Tytuł:

Substitution mechanism of rare earths at fluorapatite characteristic sites : experimental and computational calculations

Autorzy:

Xie, Jun

Powiązania:

https://bibliotekanauki.pl/articles/24085936.pdf

Data publikacji:

2023

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

rare earth
phosphorite
doping
electronic properties
computational calculations

Opis:

Rare earths (REs) containing phosphate rock is a potential REs resource. The unclear occurrence mechanism of REs in phosphorite limits its further development and utilization. Fluorapatite (FAP) is the main REs-bearing target mineral in phosphorite, the microscopic mechanism of REs entering FAP still needs to be further studied from the electronic scale. In this paper, the doping mechanism of REs in FAP was studied by experiment combined with GGA+U calculation. The XRD, SEM, and FT-IR characterization results of hydrothermal synthesis products showed that REs (La, Ce, Nd, and Y) entered FAP crystal, and one of every 20 Ca atoms was replaced by a REs atom. The GGA+U calculation indicated that La-O/F, Ce-O/F, Nd-O/F, and Y-O/F were ionic bonds in general, and the bonding strength of La-O/F, Ce-O/F, Nd-O/F, and Y-O/F increased gradually with atomic number. The substitution difference of La, Ce, Nd, and Y was mainly caused by the gain and loss of electrons in f and d orbitals. The substitution mechanism of REs at the characteristic sites of Fap was studied, which provided a theoretical reference for the selective recovery of REs from phosphorus blocks.

Źródło:

Physicochemical Problems of Mineral Processing; 2023, 59, 2; art. no. 163418
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:

Dendroflora parków i ogrodów Pomorskiego Szlaku Cysterskiego
Dendroflora of parks and gardens on the Pomeranian Cistercian Trail

Autorzy:

Sobisz, Zbigniew
Truchan, Mariola

Powiązania:

https://bibliotekanauki.pl/articles/1186066.pdf

Data publikacji:

2020-02-19

Wydawca:

Polskie Towarzystwo Dendrologiczne

Tematy:

Cictercian
monastery
Pomerania
dendrology
rare and endangered taxa

Opis:

Ordo Cisterciensis was set up on March 21, 1098 in France. The Benedectine monks were the founders who aimed at linking the principles of Benedict of Nursia with ascetism and the eremitical ideal of living. The Cistercians came to Pomerania in the first half of the 12th century. Their presence resulted in the evolution of science, culture, medicine, crafts and agriculture. Several smaller objects such as parish churches, chapels, manor houses, parks, gardens and farmhouses bring back memories of brilliance and affluence of Cistercian monasteries in Gdańsk Oliwa, Kartuzy, Starzyński Dwór, Żarnowiec, Puck, Bukowo Morskie, Iwięcino, Skibno, Słowino and Koszalin-Góra Chełmska. In 1990 the Council of Europe undertook a decision to create a tourist path based upon ‘the foot steps of the Cistercian monks’ under the auspices of the international programme ‘European Cultural Routes’. Field studies that were undertaken in 2017-2019 included Postcysterian objects mentioned above. The study aims at presenting geographical–historical status, range groups and life forms of the chosen parks and gardens. The dendroflora of parks and gardens comprises 237 taxa. They belong to 109 genera and 48 families. A total of nine species covered by legal protection were reported: Pinus cembra, Rhododendron luteum, Rosa gallica, Sorbus torminalis, Sorbus intermedia, Hippophae rhamnoides, Lonicera periclymenum, Pinus mugo and Taxus baccata. Among rare species present we should mention: Taxodium distichum, Acer campestre, Ginkgo biloba, Metasequoia glyptostroboides, Liriodendron tulipifera and Wollemia nobilis.

Źródło:

Rocznik Polskiego Towarzystwa Dendrologicznego; 2019, 67; 81-87
2080-4164
2300-8326

Pojawia się w:

Rocznik Polskiego Towarzystwa Dendrologicznego

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Analysis of heat capacity and Mössbauer data for LuZnSn2 compound

Autorzy:

Łątka, K.
Przewoźnik, J.
Żukrowski, J.
Verbovytskyy, Y.
Gonçalves, A. P.

Powiązania:

https://bibliotekanauki.pl/articles/147720.pdf

Data publikacji:

2015

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

heat capacity
Mössbauer studies
rare earth ternary compounds

Opis:

New analysis of heat capacity data is presented for LuZnSn2 compound that takes into account anharmonic effects together with the existence of Einstein modes. 119mSn Mössbauer spectroscopy was used to monitor the hyperfi ne parameters at the two crystallographically inequivalent Sn sites in the studied compound. The problem of non-unique mathematical resonance spectrum description and the problem how to choose physically meaningful set of hyperfi ne parameters will be thoroughly discussed. Measured quadrupole interaction constants by 119mSn Mössbauer spectroscopy give estimations for Vzz component of electric fi eld gradient tensor at both Sn sites in LuZnSn2.

Źródło:

Nukleonika; 2015, 60, 1; 97-101
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

57Fe Mössbauer effect studies of ErFe11Ti and ErFe11TiH compounds

Autorzy:

Gaczyński, P.
Tereshina, I.
Rusakov, V.
Nikitin, S.
Drulis, H.

Powiązania:

https://bibliotekanauki.pl/articles/148892.pdf

Data publikacji:

2003

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

rare earth
iron compounds
metal hydrides
Mössbauer spectroscopy

Opis:

Ferromagnetic compounds ErFe11TiHx (x = 0, 1) have been investigated by 57Fe Mössbauer spectroscopy in the temperature range 20–300 K. Mössbauer spectra were analyzed in terms of a model which takes into account the local environment of Fe atoms on three crystallographic sites (8f, 8j and 8i) and an influence of the random distribution of titanium on the 8i site. The 14 sextets with different intensities have been considered. The temperature dependencies of hyperfine interaction parameters and subspectra contributions were derived from experimental spectra. The hyperfine fields and the isomer shift increasing upon hydrogenation are discussed in terms of the hydrogen-induced Wigner-Seitz unit cell expansion and the s-electrons transfer from Fe atoms to the adjacent hydrogen atoms.

Źródło:

Nukleonika; 2003, 48,suppl.1; 25-29
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

APPLICABILITY OF THE EVIDEM MULTI-CRITERIA DECISION ANALYSIS FRAMEWORK FOR ORPHAN DRUGS – RESULTS FROM A STUDY IN 7 EURASIAN COUNTRIES.

Autorzy:

Baran-Kooiker, Aleksandra
ATIKELER, Kagan
GAITOVA, KAMILLA
HOLOWNIA-VOLOSKOVA, MALWINA
TURCU-STIOLICA, ADINA
Kooiker, Coen
PINIAZHKO, ORESTA
CZECH, MARCIN

Powiązania:

https://bibliotekanauki.pl/articles/895230.pdf

Data publikacji:

2019-06-28

Wydawca:

Polskie Towarzystwo Farmaceutyczne

Tematy:

rare diseases
MCDA
orphan drugs
EVIDEM
HTA
weighting

Opis:

Several Multi-Criteria Decision Analysis (MCDA) models for use in health technology assessment (HTA) have been developed over the years, including some for orphan drugs (OD). However, there is no general consensus yet on MCDA structure and which criteria should be included and implementation of MCDA into HTA practice has been slow so far. Our study tested the criteria preferences and possibilities for implementation of the EVIDEM MCDA framework for OD with a diverse group of 140 stakeholders in Kazakhstan, Netherlands, Poland, Romania, Russia, Turkey and Ukraine (KZ,NL,PL,RO,RU,TR,UA). The research elicited stakeholder preferences (weighting) for EVIDEM domains, criteria and sub-criteria to measure their relative importance. Correlations of work place and HTA/rare diseases experience with weighting results were investigated. Results showed that the ‘Need for intervention’ domain was assessed as the most important in: RO/NL/RU/TR, in KZ/PL the ‘Type of benefit of intervention’ and in UA ‘Economic consequences of intervention’. ‘Population Priorities’ was uniformly given a low priority. Further research, sharing of experiences and multi-stakeholder discussion is necessary to define a path forward for a robust and sustainable improvement of MCDA models and its application in orphan drug HTA. Model simplification and clarification of outcomes would be beneficial.

Źródło:

Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 3; 581-598
0001-6837
2353-5288

Pojawia się w:

Acta Poloniae Pharmaceutica - Drug Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Rodzina – źródłem wsparcia w doświadczeniu rzadkiej choroby dziecka
Family – a Source of Support in the Experience of Rare Child’s Disease

Autorzy:

Klajmon-Lech, Urszula

Powiązania:

https://bibliotekanauki.pl/articles/1811240.pdf

Data publikacji:

2018

Wydawca:

Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL

Tematy:

rodzina
wsparcie
rzadka choroba
family
suport
rare disease

Opis:

Tematem artykułu jest doświadczenie społecznego wsparcia rodziców dzieci z rzadkimi chorobami genetycznymi. Choroba dziecka zmienia życie całej rodziny: charakter relacji małżeńskich, relacji pomiędzy rodzeństwem, wzmacniając więzi lub odwrotnie – osłabiając je. W przeprowadzonych metodą biograficzną badaniach rodziców dziecka chorego autorkę interesowała odpowiedź na pytania: W jaki sposób sytuacja życia z dzieckiem chorym na rzadką chorobę genetyczną determinuje życie małżeńskie jego rodziców, w szczególności wzajemne relacje między nimi? Czy/i w jaki sposób małżonkowie udzielają sobie wzajemnie wsparcia w sytuacji choroby dziecka? Czy/i w jaki sposób rodzeństwo dziecka chorego udziela wsparcia jego rodzicom?
The topic of the article is the experience of social support for parents of children with rare genetic diseases. A child's disease changes the life of the whole family: the nature of marital relationships, relationships between siblings, strengthening ties or vice versa – weakening them. In the biographical studies of the parents of the sick child, I was interested in answering the questions: How does the situation of living with a child suffering from a rare genetic disease determine the marital life of their parents, in particular the mutual relations between them? Do and how do spouses support each other in the event of a child's illness? Does / how the child's siblings give support to his parents?

Źródło:

Roczniki Pedagogiczne; 2018, 10(46), 3; 105-117
2080-850X

Pojawia się w:

Roczniki Pedagogiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Separation of Ho3+ in Static Magnetic Field

Autorzy:

Kołczyk, K.
Wojnicki, M.
Kutyła, D.
Kowalik, R.
Żabiński, P.
Cristofolini, A.

Powiązania:

https://bibliotekanauki.pl/articles/355096.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

rare earth metals
REE
recycling
separation
magnetic field

Opis:

The rare earths elements (REE) belong to the group of critical metals and they are achieving more and more interest due to their special properties. However, there occur some problems connected with their production. The most difficult phase is separation of REE. It includes a necessity to intensify currently applied processes and looking for new solutions. The present work introduces an idea to use differences in physical properties of the REE ions to get them separated. In the experimental part of the work some efforts were undertaken to analyse results presenting changes of holmium ions concentration under an influence of the magnetic field gradient. There was determined the gradient of magnetic field and concentration of Ho³⁺ ions depending on initial concentration of the solution and time. A simulation of changing the concentration of holmium ions in the solution under an influence of the magnetic field gradient was performed to compare the mathematical model with the obtained results.

Źródło:

Archives of Metallurgy and Materials; 2016, 61, 4; 1919-1924
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Effect of Fe Content on the Mechanical Properties and Thermal Conductivity of the Al-RE Alloys

Autorzy:

Yoo, Hyo-Sang
Kim, Yong-Ho
Son, Hyeon-Taek

Powiązania:

https://bibliotekanauki.pl/articles/356397.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

aluminum
extrusion
rare earth
thermal conductivity
mechanical property

Opis:

In this study, we investigated the effect of Fe addition (0, 0.25, 0.50 and 0.75 wt.%) on the microstructure, mechanical properties and electrical conductivity of as-cast and as-extruded Al-RE alloys. As the Fe element increased by 0 and 0.75wt.%, the phase fraction increased to 5.05, 5.76, 7.14 and 7.38 %. The increased intermetallic compound increased the driving force for recrystallization and grain refinement. The electrical conductivity of Al-1.0 wt.%RE alloy with Fe addition decreased to 60.29, 60.15, 59.58 and 59.13 % IACS. With an increase in the Fe content from 0 to 0.75 wt.% the ultimate tensile strength (UTS) of the alloy increased from 74.3 to 77.5 MPa. As the mechanical properties increase compared to the reduction of the electrical conductivity due to Fe element addition, it is considered to be suitable for fields requiring high electrical conductivity and strength.

Źródło:

Archives of Metallurgy and Materials; 2020, 65, 3; 1029-1033
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Crystal structures of ErGe2 and TmGe2 compounds

Autorzy:

Matvijishyn, R.
Pavlyuk, V.
Shpyrka, Z.
Serkiz, R.

Powiązania:

https://bibliotekanauki.pl/articles/410283.pdf

Data publikacji:

2010

Wydawca:

Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane

Tematy:

rare earths phases
crystal structure
X-ray diffraction

Opis:

Crystal structures of ErGe2 and TmGe2 compounds were determined by X-ray single crystal diffraction. Both TmGe2 and ErGe2 crystallized with the ZrSi2 structure type (space group Cmcm).

Źródło:

Chemistry, Environment, Biotechnology; 2010, 14; 35-40
2083-7097

Pojawia się w:

Chemistry, Environment, Biotechnology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Process mineralogy of Bayan Obo rare earth ore by MLA

Autorzy:

Xu, Caili
Chi, Ru’an
Zhang, Yantu
Zhong, Chengbin
Ruan, Yaoyang
Lyu, Renliang
Zhou, Fang

Powiązania:

https://bibliotekanauki.pl/articles/1449295.pdf

Data publikacji:

2020

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

process mineralogy
rare earth
Bayan Obo ore
MLA

Opis:

The maximum recovery of rare earth resource from the Bayan Obo ore deposit is a difficult task, especially without the sufficient data of mineralogy. In this paper the mineralogy of Bayan Obo ore deposit by comprehensively research with the application of mineral liberation analyzer (MLA) is reported. The MLA was applied to quantitatively analyze the complicated element/mineral compositions, the REE occurrence, the size distribution and the degree of liberation of the Bayan Obo ore. Mineralogical analysis of the rare earth ore has shown that REEs are present mainly as bastnaesite and monazite-(Ce) to a small extent as parisite-(Ce). 5.85% of the REEs, 34.99% of iron and 0.12% of niobium occur in the ore sample. There are 76.99% of iron occurred in hematite and the remaining iron is mainly distributed in magnetite and goethite. The degree of liberation of bastnaesite and monazite(Ce) was 79.65% and 75.67% respectively when the grinding fineness was 83.57% passing 75 μm sieves. Un-liberated or partly liberated rare earth minerals are associated closely mainly with other rare earth minerals and gangues. These theoretical data could be employed to further comprehensively utilize the rare earth ore.

Źródło:

Physicochemical Problems of Mineral Processing; 2020, 56, 4; 737-745
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Rare-Earth Elements Recovery on the Example of Europium (III) from Lean Technogenic Raw Materials

Autorzy:

Lobacheva, O.
Dzhevaga, N.

Powiązania:

https://bibliotekanauki.pl/articles/123060.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

recovery
separation
extraction
rare-earth element
distribution coefficients

Opis:

Europium (III) recovery from nitrate solutions in a form of dodecyl sulfates using extraction methods was studied. Distribution and recovery coefficients as a function of equilibrium aqueous phase рН value were received. Conclusions on the effectiveness of presented method depending on the assigned task were drawn. The aims of this study were the development of rare-earth elements recovery and separation methods by using extraction with surfactant and distribution coefficients separation as well as recovery coefficient experimental validation with their subsequent introduction for poor mineral raw materials industrial processing. The authors study the rare-earth metals distribution and recovery coefficients during the extraction processes as a function of aqueous phase pH value with recovered compound form determination and thermodynamical justification.

Źródło:

Journal of Ecological Engineering; 2017, 18, 6; 122-126
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Fabry disease related nephropathy – case family report and literature review

Autorzy:

Król, Nikola
Trąd, Szymon
Milian-Ciesielska, Katarzyna
Gala-Błądzińska, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/2216794.pdf

Data publikacji:

2022-12-30

Wydawca:

Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego

Tematy:

. Fabry disease
kidney injury
membranoproliferative glomerulonephritis
rare disease

Opis:

Introduction and aim. Fabry disease (FD) is a ultrarare storage disorder which causes irreversible damage to the brain, heart, and kidneys in young patients. The aim of our study was to draw clinician’s attention to the need of considering FD in the differential diagnosis of kidney disorders. Description of the case. We present the case of a 45-year-old man who has been misdiagnosed for several years with arterial hypertension with organ complications. He was referred to the nephrological ward due to chronic advanced kidney disease of unclear etiology. After 2 months of thorough differential diagnostics, based on the clinical course (past stroke, membranoproliferative glomerulonephritis (MPGN), left ventricular hypertrophy, paroxysmal limb pain) and conducted genetic examination, FD was confirmed. Then, screening tests were performed among the patient’s family members, confirming the presence of the same mutation as in our patient in 4 women of which in 3 were diagnosed cardio-renal syndrome. The authors of other studies report glycolipid deposits in the kidney cells on a needle biopsy, usefulness assess podocyturia, globotriaosylceramide protein in the urine and renal parapelvic cysts in an ultrasound examination in diagnostic FD nephropathy. Conclusions. This is the first case report to describe membranoproliferative glomerulonephritis in a patient suffering from FD. In patients with FD and the same genotype, kidney damage has a different phenotype.

Źródło:

European Journal of Clinical and Experimental Medicine; 2022, 4; 482-487
2544-2406
2544-1361

Pojawia się w:

European Journal of Clinical and Experimental Medicine

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Mössbauer and heat capacity studies of ErZnSn2

Autorzy:

Łątka, K.
Przewoźnik, J.
Żukrowski, J.
Verbovytskyy, Y.
Gonçalves, A. P.

Powiązania:

https://bibliotekanauki.pl/articles/146874.pdf

Data publikacji:

2017

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

ternary rare-earth intermetallics
heat capacity
Mössbauer spectroscopy

Opis:

Heat capacity results obtained for the intermetallic compound ErZnSn2 were re-analysed to also consider, apart from the classical Debye model, the anharmonicity of the crystal lattice and the proper set of Einstein modes. The 119mSn Mössbauer technique was applied to derive the hyperfine interaction parameters characteristic of the two inequivalent crystallographic Sn sites in the compound studied. Quadrupole interaction constants, as measured by 119mSn Mössbauer spectroscopy, allowed for estimations of Vzz components of the electric field gradient tensor that exist at both Sn sites in the discussed compound.

Źródło:

Nukleonika; 2017, 62, 2; 129-133
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

155Gd isomer shifts : the case study : GdT2Si2

Autorzy:

Łątka, K.

Powiązania:

https://bibliotekanauki.pl/articles/147398.pdf

Data publikacji:

2013

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

isomer shifts
Mössbauer studies
rare earth ternary compounds

Opis:

The experimentally obtained 155Gd Mössbauer effect results in isomer shifts for GdT2Si2 compounds (where T are transition metals for the 3d, 4d and 5d series) are analysed in terms of charge-transfer effects and s, d redistribution by means of the extended Miedema and van der Woude model. The comparison between the theoretically predicted and measured values is discussed. Although these theoretical predictions of isomer shifts are in reasonable agreement with those found in the experiment, nevertheless they do not follow the experimental dependence on T metal acquired for each nd-series.

Źródło:

Nukleonika; 2013, 58, 1; 23-26
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Niobiany ziem rzadkich – właściwości i zastosowania
Rare earth niobates – properties and applications

Autorzy:

Winiarz, P.

Powiązania:

https://bibliotekanauki.pl/articles/134865.pdf

Data publikacji:

2016

Wydawca:

ADVSEO

Tematy:

rare earth niobates
doping
ionic conductors
protonic conductors

Opis:

Rare earth niobates are a very interesting group of materials. These compounds have different properties which could be changed in a wide range by appropriate doping. X-Ray diffraction examinations for some compounds of RE3NbO7 group were shown. All peaks agree with diffraction patterns. Phases from other elements are not reported. These materials were divided into three space groups depending on ionic radius of RE3+. The most important from applicational point of view is defected-fluorite type structure which is reached for the smallest RE3+ cations. Surface morphology made by Scanning Electron Microscopy was shown. The microstructure of examined materials varies grain size what is connected with ionic radius RE3+. Electrical measurements made in dry argon atmosphere show that the highest values of ionic conductivity were reached for two last lanthanides rare earth niobates Yb3NbO7, Lu3NbO7 and for Y3NbO7. Contained optical properties measurements show that Spark Plasma Sintering enables to obtain Lu3NbO7 which is transparent for visible light.

Źródło:

Technical Issues; 2016, 3; 135-140
2392-3954

Pojawia się w:

Technical Issues

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

New records of the rare ant species (Hymenoptera, Formicidae) in Poland
Nowe dane dotyczące rzadkich gatunków mrówek (Hymenoptera, Formicidae) w Polsce

Autorzy:

Radchenko, A.
Aleksandrowicz, O.

Powiązania:

https://bibliotekanauki.pl/articles/2053021.pdf

Data publikacji:

2020

Wydawca:

Akademia Pomorska w Słupsku

Tematy:

rare ant species
Hymenoptera
Formicidae
Słowiński National Park

Opis:

There are two rare ant’s species were found on the northern part of the Wielkie Bagno peat bog in Słowiński National Park. More than 10 workers of Formica picea and four dealate gynes of Myrmica karavajevi were collected in pitfall traps 2-12 of August 2006.

Źródło:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2020, 24; 73-80
1643-0115

Pojawia się w:

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Rare Earth Silicate Formation: A Route Towards High-k for the 22 nm Node and Beyond

Autorzy:

Mitrovic, I. Z.
Hall, S.

Powiązania:

https://bibliotekanauki.pl/articles/308255.pdf

Data publikacji:

2009

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

gadolinium silicate
interfacial layer
lanthanides
rare earth oxides

Opis:

Over the last decade there has been a significant amount of research dedicated to finding a suitable high-k/metal gate stack to replace conventional SiON/poly-Si electrodes. Materials innovations and dedicated engineering work has enabled the transition from research lab to 300 mm production a reality, thereby making high-k/metal gate technology a pathway for continued transistor scaling. In this paper, we will present current status and trends in rare earthbased materials innovations; in particular Gd-based, for the high-k/metal gate technology in the 22 nm node. Key issues and challenges for the 22 nm node and beyond are also highlighted.

Źródło:

Journal of Telecommunications and Information Technology; 2009, 4; 51-60
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

Valsa viburni, a rare fungus in Europe?

Autorzy:

Hayova, V.

Powiązania:

https://bibliotekanauki.pl/articles/66965.pdf

Data publikacji:

2013

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Valsa viburni
fungi
rare species
microfungi
conservation
Europe

Opis:

The paper provides brief illustrated description and general distribution of Valsa viburni. The fungus is found to be highly host-specific and confined to Viburnum lantana. According to currently available data on its distribution, the species has small number of records, fragmented range and is shown to be rare in Europe. However, before assessment of the species, information on any additional unrecorded specimens is needed. On the example of V. viburni, some issues on fungal conservation for species of microfungi are considered.

Źródło:

Acta Mycologica; 2013, 48, 2
0001-625X
2353-074X

Pojawia się w:

Acta Mycologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

New records of Chara connivens P. Salzmann ex A. Braun 1835 - an extremely rare and protected species in Polish brackish waters

Autorzy:

Brzeska, P.
Wozniczka, A.
Pelechaty, M.
Blindow, I.

Powiązania:

https://bibliotekanauki.pl/articles/56909.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

new record
Chara connivens
extremely rare species
rare species
protected species
Polska
brackish water
Vistula Lagoon
Szczecin Lagoon
baltic Sea

Opis:

The stonewort Chara connivens was rediscovered in the Vistula Lagoon in 2011, almost 35 years after its last record. In 2012, the species was recorded for the first time in the Szczecin Lagoon. Chara connivens occurred at shallow (0.5–1.2 m) sandy-muddy and muddy bottoms of small embayments. In the Vistula Lagoon, the stonewort was represented by single small specimens, while in the Szczecin Lagoon, it formed dense and extensive patches.

Źródło:

Acta Societatis Botanicorum Poloniae; 2015, 84, 1
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Separation and purification of light rare earth elements from chloride media using P204 and Cyanex272 in sulfonated kerosene under non-saponification conditions

Autorzy:

Fan, Peiqiang
Zhang, Wenjie
Tong, Xiong
Xie, Xian
Xie, Ruiqi
Song, Qiang
Du, Yunpeng
Cao, Yang

Powiązania:

https://bibliotekanauki.pl/articles/27323661.pdf

Data publikacji:

2023

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

P 204
Cyanex 272
light rare earths
extraction
mechanism

Opis:

The extraction of light rare earths (Pr and Nd) from chloride medium was investigated using a mixture of di(2-ethylhexyl) phosphoric acid (P204) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272) in sulfonated kerosene. The P204+Cyanex272 system exerted a synergistic effect on the separation of light rare earths, and the separation coefficient was higher than when P204 and Cyanex272 were used as extractants alone. The separation coefficient of Pr and Nd in the extraction system reached 1.75 when the pH of the aqueous phase material solution was approximately 2.5, and 1.5 mol/L hydrochloric acid as a stripping agent effectively eluted the rare earth ions in the loaded organic phase. Combining the slope method, infrared spectroscopy, and nuclear magnetic resonance spectroscopy, we explored the mechanism of the extracted Nd and Pr into the organic phase complex, and finally entered the organic phase with Re(HA2)2B. The P-O-H bond and P=O bond in the extractant P204 and Cyanex272 formed a coordination bond with Re3+. Therefore, this extraction method also provides a reference for a more environmentally friendly and efficient procedure for separation and purification of light rare earth elements Pr and Nd.

Źródło:

Physicochemical Problems of Mineral Processing; 2023, 59, 6; art. no. 172444
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

First Polish records of Myxomycetes rare in Europe

Autorzy:

Bochynek, A.

Powiązania:

https://bibliotekanauki.pl/articles/56567.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

first record
Polska
Myxomycetes
rare species
taxonomy
distribution
Europe

Opis:

Seven species of Myxomycetes are reported from Poland for the first time. These are Arcyria virescens, Cribraria costata, C. elegans, C. languescens, C. mirabilis, C. pertenuis and Trichia flavicoma. They have very few localities in Europe and Cribraria pertenuis is known only from two sites worldwide. The species are described and illustrated with microphotographs, including first published micrographs of C. pertenuis. Localities are given and the taxonomy and ecology of each species are discussed.

Źródło:

Acta Societatis Botanicorum Poloniae; 2015, 84, 4
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

Controls on the distribution of rare earth elements in the Kupferschiefer series of SW Poland

Autorzy:

Oszczepalski, S.
Chmielewski, A.
Mikulski, S.

Powiązania:

https://bibliotekanauki.pl/articles/2060523.pdf

Data publikacji:

2016

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

rare earth elements (REE)
redistribution
Kupferschiefer
Zechstein
SW Poland

Opis:

This study deals with the spatial distribution and the PAAS-normalized patterns of rare earth elements (REE) studied by ICP-MS in the Kupferschiefer series of SW Poland. The most characteristic feature is a progressive enrichment in REE content (including Y and Sc) outward from the rocks with pyritic and Pb-Zn mineralisation, across the rocks with copper mineralisation, towards the oxidized (Rote Fäule) areas. The same trend can also be observed with respect to LREE, MREE and HREE. Whereas REE distribution diagrams for shales with pyrite and Pb-Zn mineralisation are almost flat, diagrams for shales with hematite and copper mineralisation are convex-upward and the strongest convexity is attributed to the transition from hematitic alteration to copper-rich rocks. REE distribution diagrams normalized to PAAS show strong MREE enrichment relative to LREE and HREE, which is typically the highest in the hematite zone, lower in shale with copper mineralisation, and the lowest in shales with Pb-Zn and pyrite mineralisation. The systematic increase in the concentration of REE towards the Rote Fäule, and the strong enrichment in MREE in the transition zone are indicative of variable intensity of leaching and formation of the REE enrichments (including MREE) by MREE>HREE>LREE fluids, as evidenced by the MREE-enriched signatures. Overprinting of secondary enrichments over the original REE pattern due to redistribution along the pathways of expanding fluids are postulated to account for the apparent differences in the distribution and concentration of REE (including the MREE-enriched trend) between the oxidized rocks, copper-bearing rocks, and reduced lithologies barren in copper.

Źródło:

Geological Quarterly; 2016, 60, 4; 811--826
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Mineralogical characteristic and beneficiation evaluation of rare earth carbonate wall rock

Autorzy:

Gao, Chunqing
Yan, Guoying
Wang, Hailiang
Luo, Hongzhen
Zhang, Lin
Yang, Hanxu
Xu, Jian

Powiązania:

https://bibliotekanauki.pl/articles/2200340.pdf

Data publikacji:

2023

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

rare earth
wall rock
magnetite
fluorite
process mineralogy
beneficiation

Opis:

In order to rationalize the development and utilization of the wall rock discarded during rare earth mining, chemical analysis, inductively coupled plasma-atomic emission spectroscopy, X-ray diffraction analysis, artificial panning, optical microscope analysis, mineral liberation analysis and energy-dispersive spectroscopy were used to study the process mineralogy of the wall rock. The results show that the main useful elements in the rare earth wall rock were iron, light rare earth elements, fluorine and niobium. Iron was mainly occurrence as magnetic iron in magnetite, rare earth elements in bastnaesite and monazite, fluorine as a independent mineral in fluorite and niobium in columbite. The main useful minerals were finely disseminated, with magnetite (48.16%), bastnaesite (49.04%), monazite (42.18%), fluorite (39.30%) and columbite (63.26%) distributed in -0.030 mm particle size. The useful minerals were evaluated separately for beneficiation based on the process mineralogical characteristics of the rare earth wall rock, and the results showed that magnetite, rare earth and fluorite resources could be effectively recovered using magnetic separation, flotation, gravity concentration and leaching enrichment methods. The sequential recovery of iron, rare earth, fluorine and niobium elements produces iron concentrate (65.40% TFe at recovery of 38.03%), rare earth concentrate (50.66% REE at recovery of 62.73%), fluorite concentrate (95.23% CaF2 at recovery of 40.34%) and niobium iron ore concentrate (1.63% Nb2O5 at recovery of 5.56%). This study provides recommendations for the rational development and utilization of rare earth wall rock and provides reasonable levels of recovery predictions.

Źródło:

Physicochemical Problems of Mineral Processing; 2023, 59, 1; art. no. 161300
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

Extractive separation of rare earth ions by using calix[4]arene with isopropyl hydrogen phosphonate at upper rim

Autorzy:

Ohto, K.
Yamasaki, T.
Inoue, K.

Powiązania:

https://bibliotekanauki.pl/articles/346933.pdf

Data publikacji:

2006

Wydawca:

Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej

Tematy:

calix[4]arene
phosphonate
rare earth ions
extraction
selectivity

Opis:

5,11,17,23-Tetrakis(isopropyl hydrogen phosphonomethyl)- 25,26,27,28 - tetrapropoxycalix[4]arene in cone conformation has been synthesized to investigate extraction behavior for nine trivalent rare earth metal ions from chloride media into chloroform, together with isopropyl hydrogen (4-propoxyphenyl)methylphosphonate as a corresponding monomer. Although the aqueous distributions of the present extractants were greater than those of butyl ester type of the previous extractants, they were trace and slight amounts under the experimental condition for calix[4]arene and monomeric derivatives, respectively. From the result of pH dependency, extraction takes place by a simple ion-exchange mechanism for both extractants. The extraction ability between the present extractants for rare earth ions was comparable. Results of a Job plot and a loading test indicate that for calix[4]arene derivative, stoichiometry of the extraction is 1:1. The separation efficiency of a calix[4]arene derivative is less than that of a monomeric derivative. It is attributed to the offset by the size effect of a coordination site at the larger upper rim of calix[4]arene (for relatively larger light rare earth ions) and strong affinity of phosphonate group to heavy rare earth ions. Such result is similar to that of derivatives with butyl ester.

Źródło:

Ars Separatoria Acta; 2006, 4; 96-106
1731-6340

Pojawia się w:

Ars Separatoria Acta

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

NOWE STANOWISKO DIPLOSCHISTES MUSCORUM (Scop.) R. Sant. na NIZINIE WIELKOPOLSKO-KUJAWSKIEJ

Autorzy:

Zarabska–Bożejewicz, Daria

Powiązania:

https://bibliotekanauki.pl/articles/942686.pdf

Data publikacji:

2017

Wydawca:

Poznańskie Towarzystwo Przyjaciół Nauk

Tematy:

Diploschistes muscorum
distribution
lichens
rare species
west-central Poland

Opis:

Diploschistes muscorum (Scop.) R. Sant. has been found in the southern part of the Wielkopolsko-Kujawska Lowland. So far, in western and central Poland the species has been reported in few localities.

Źródło:

Badania Fizjograficzne Seria B - Botanika; 2017, 65; 129-135
2082-3339

Pojawia się w:

Badania Fizjograficzne Seria B - Botanika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

New sites of the rare Microlepidoptera species on Warsaw Basin
Nowe stanowisko rzadkich gatunków Microlepidoptera w Kotlinie Warszawskiej

Autorzy:

Mazurkiewicz, A.
Tumialis, D.
Pezowicz, E.

Powiązania:

https://bibliotekanauki.pl/articles/2849.pdf

Data publikacji:

2013

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

new site
rare species
Microlepidoptera
new record
Warsaw Basin

Opis:

An inventory studies on Microlepidoptera were performed in 2008 on meadows neighbouring the then planned War-saw-Modlin Airport. The studies revealed the occurrence of 165 species representing 26 families in the area including 37 species first noted in Masovian Province. Species that deserve special attention due to a low number of sites in Poland include: Depressaria pimpinellae (Zeller, 1839), Scythris seliniella (Zeller, 1839), Schiffermuelleria schaefferella (Linnaeus, 1758), Pseudatemelia flavifrontella (Denis et Schiffermüller, 1775), Nothris verbascella (Denis et Schiffermüller, 1775), Ptocheuusa inopella (Zeller, 1839), Epinotia rubiginosana (Herrich-Schäffer, 1851), Lobesia artemisiana (Zeller, 1847), Phtheochroa pulvillana (Herrich-Schäffer, 1851), Anania verbascalis (Denis et Schiffermüller, 1775), Epascestria pustulalis (Hübner, 1823).
Nowe stanowisko rzadkich gatunków Microlepidoptera w Kotlinie Warszawskiej. W 2008 roku przeprowadzono badania inwentaryzacyjne dotyczące Microlepidoptera na obszarze łąk sąsiadujących z planowanym wówczas portem lotniczym Warszawa-Modlin. W wyriiku badań stwierdzono na tym terenie występowanie 165 gatunków reprezentujących 26 rodzin. Wśród nich było 37 gatunków po raz pierwszy wykazanych z województwa mazowieckiego. Do gatunków zasługujących na szczególną uwagę ze względu na niewielką liczbę znanych w Polsce stanowisk zaliczono: Depressaria pimpinellae (Zeller, 1839), Scythris seliniella (Zeller, 1839), Schiffermuelleria schaefferella (Linnaeus, 1758), Pseudatemelia flavifrontella (Denis et Schiffermuller, 1775), Nothris verbascella (Denis et Schiffermuller, 1775), Ptocheuusa inopella (Zeller, 1839), Epinotia rubiginosana (Herrich-Schaffer, 1851), Lobesia artemisiana (Zeller, 1847), Phtheochroa pulvillana (Herrich-Schaffer, 1851), Anania verbascalis (Denis et Schiffermuller, 1775), Epascestria pustulalis (Hubner, 1823).

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Animal Science; 2013, 52
1898-8830

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 53.

Tytuł:

Werneckiella equi (Insecta: Phthiraptera, Ischnocera) - a rarely recorded parasite of horses

Autorzy:

Fryderyk, S.
Izdebska, J.N.
Kozina, P.

Powiązania:

https://bibliotekanauki.pl/articles/6553.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Parazytologiczne

Tematy:

Werneckiella equi
Insecta
Phthiraptera
Ischnocera
rare species
parasite
horse

Źródło:

Annals of Parasitology; 2016, 62, Suppl.
0043-5163

Pojawia się w:

Annals of Parasitology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 54.

Tytuł:

The recycling-oriented material characterization of hard disk drives with special emphasis on NdFeB magnets

Autorzy:

Dańczak, A.
Chojnacka, I.
Matuska, S.
Marcola, K.
Leśniewicz, A.
Wełna, M.
Żak, A.
Adamski, Z.
Rycerz, L.

Powiązania:

https://bibliotekanauki.pl/articles/109315.pdf

Data publikacji:

2018

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

hard disk drives
rare earth elements
permanent magnets
recycling

Opis:

Hard disk drives (HDDs) consist of many components made from various materials: e.g. aluminum, steel, copper and rare earth elements (REEs). Recycling and reuse of these materials is desirable for economic and environmental reasons. Developing of potential HDDs recycling methods requires knowledge about HDDs material characteristic. The study aims to explore knowledge about structure and chemical composition of HDDs main components with special emphasis on NdFeB magnets. HDDs collected for the experiments came from Desktop PCs and Notebooks. The dependence between the average mass of HDDs components and such parameters as producer, year and country of production and disk capacity was analyzed. Chemical composition of NdFeB magnets and the heaviest components (i.e. top cover, mounting chassis, platters and metallic plates from magnet assembly of actuator) was analyzed by various analytical methods. The heaviest HDDs main components: top cover and mounting chassis, with the highest recycling potential, are made of aluminum and steel respectively. The majority of HDDs components showed also the existence of different alloy additions: C, Mg, Si, P, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Sn and Pb. NdFeB magnets constitute 2.2 ± 1.1% of the average HDD from Desktop PC (517.3 ± 64.2 g) and 3.2 ± 1.2% from Notebook (108.2 ± 24.3 g). The chemical composition of NdFeB magnets from collected HDDs changes in the wide range: Fe (53–62%), Nd (25–29%), Pr (2–13%), Dy (0.1– 1.4%), Ni (2–6%), Co (0.5–3.6%), B (0.8–1.0%). Recycling of permanent magnets based on NdFeB alloys is potential remedy to fill the gap in the supply of rare earth elements on the global REEs market.

Źródło:

Physicochemical Problems of Mineral Processing; 2018, 54, 2; 363-376
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 55.

Tytuł:

One step purification of impurities in the leachate of weathered crust elution-deposited rare earth ores

Autorzy:

Zhou, F.
Feng, J.
Wang, Z.
Xu, Y.
Zhang, Z.
Chi, R.

Powiązania:

https://bibliotekanauki.pl/articles/110333.pdf

Data publikacji:

2017

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

leachate
weathered crust
rare earth ore
leachate purification
precipitation

Opis:

It is necessary to control and reduce the high content of Al3+, Cu2+ and Pb2+ ions in the leachate of weathered crust elution-deposited rare earth ore to facilitate the rare earth recovery and the quality of rare earth products. Neither NH4HCO3 nor Na2S are suitable for removal of all impurity ions and meanwhile maintain high rare earth recovery. Conventionally, NH4HCO3 is firstly adopted to remove Al3+, and then Cu2+ and Pb2+ are removed by using Na2S. This two steps purification process is quite long and results in lots of complication in operation. In this paper, a one-step purification by using the compound of NH4HCO3 and Na2S was proposed to remove Al3+, Cu2+ and Pb2+. The results showed that after purification 89% Cu, 92% Pb and 74% Al were removed from the leachate solution by using 0.1 M compound of NH4HCO3/Na2S, while maintaining 89% rare earth. The optimal purification parameters were: volume ratio of NH4HCO3 to Na2S of 9:1, volume ratio of compound to leachate of 0.05:1, precipitation time of 30 min.

Źródło:

Physicochemical Problems of Mineral Processing; 2017, 53, 2; 1188-1199
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 56.

Tytuł:

Pr-doped TiO2. The effect of metal content on photocatalytic activity

Autorzy:

Reszczynska, J.
Arenas Esteban, D.
Gazda, M.
Zaleska, A.

Powiązania:

https://bibliotekanauki.pl/articles/110437.pdf

Data publikacji:

2014

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

photocatalysis
rare earth metal
praseodymium
modified TiO2
phenol

Opis:

Pr-TiO2 nanoparticles were prepared by using a sol-gel method. As-prepared samples were characterized by BET measurements, X-ray powder diffraction analysis (XRD) and UV-Vis spectra. Visible and ultraviolet light photocatalytic activity of the sample was studied by photodegradation of phenol, while considering the influence of the dopant concentration. TiO2 doped with 0.25 mol% of praseodymium showed the highest photocatalytic activity under visible light irradiation. Pr-TiO2 had anatase structure. The surface area was higher for powders with higher content of rare earth metal ion, and ranged from 121 to 150 m2/g. Red shifts of absorption edge toward the visible region were observed for the doped samples compared to pure TiO2.

Źródło:

Physicochemical Problems of Mineral Processing; 2014, 50, 2; 515-524
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 57.

Tytuł:

Complex Processing of Phosphogypsum - a Way of Recycling Dumps with Reception of Commodity Production of Wide Application

Autorzy:

Lutskiy, D.
Litvinova, T.
Ignatovich, A.
Fialkovskiy, I.

Powiązania:

https://bibliotekanauki.pl/articles/124643.pdf

Data publikacji:

2018

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

phosphogypsum
utilization
building materials
agriculture
rare earth elements
conversion

Opis:

The article analyzes the information on modern developments in the utilization of phosphogypsum. Only a few directions give the prospect of large-scale use of both freshly formed phosphogypsum and phosphogypsum accumulated in dumps. Under the conditions of the Russian Federation, it is promising to use phosphogypsum for the production of building materials, as well as for agriculture, for reclamation of soil and the creation of mounds of a certain type. The possibility of using phosphogypsum as a raw material for obtaining rare-earth elements is shown.

Źródło:

Journal of Ecological Engineering; 2018, 19, 2; 221-225
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 58.

Tytuł:

An overview of the association between lamprophyric intrusions and rare-metal mineralization

Autorzy:

Štemprok, M.
Seifert, T.

Powiązania:

https://bibliotekanauki.pl/articles/2086541.pdf

Data publikacji:

2011

Wydawca:

Polskie Towarzystwo Mineralogiczne

Tematy:

lamprophyres
rare metals
Sn
W
Mo
bimodal dikes
mantle metasomatism

Opis:

Granite-related rare metal districts in orogenic settings are occasionally associated with lamprophyre dikes. We recorded 63 occurrences of lamprophyres in bimodal dike suites of about 200 granite bodies related to rare metal deposits. Most lamprophyres occur in Paleozoic and Mesozoic metallogenic provinces in the northern hemisphere. Lamprophyres which are associated with rare metal deposits are calc-alkaline (kersantites, minettes, spessartites) or more rarely alkaline lamprophyres (camptonites, monchiquites) which occur in the roof zone of complex granitic bodies as pre-granitic, intra-granitic, intra-ore or post-ore dikes. Most lamprophyres are spatially associated with dominant felsic dikes and/or with mafic dikes represented by diorites or diabases. Diorites and lamprophyres occasionally exhibit transitional compositions from one to another. Lamprophyres share common geochemical characteristics of highly evolved granitoids such as enrichment in K and F, increased abundances of Li, Rb, and Cs and enrichment in some HFSE (e.g. Zr, U, Th, Mo, Sn, W). Lamprophyres in rare metal districts testify to accessibility of the upper crust to mantle products at the time of rare metal mineralization and possible influence of mantle melts or mantle-derived fluids in the differentiation of granitic melts in the lower crust.

Źródło:

Mineralogia; 2011, 42, 2/3; 121--162
1899-8291
1899-8526

Pojawia się w:

Mineralogia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 59.

Tytuł:

Measurements of huge magnetostriction of the heavy rare earth – iron intermetallics

Autorzy:

Pszczoła, Jarosław
Cetnar, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/2014118.pdf

Data publikacji:

2021

Wydawca:

Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza

Tematy:

strain
huge magnetostriction
measuring system
heavy rare earth
iron
intermetallics

Opis:

The method described in this work is the strain gauge method used to measure huge magnetostriction of the heavy rare earth - iron intermetallics. The measuring system and the procedure of measurement are presented in this work. The results of huge magnetostriction determined for the heavy rare earth-iron compounds with the MgCu2 - type crystal structure are shown.

Źródło:

Physics for Economy; 2021, 4; 65-74
2544-7742
2544-7750

Pojawia się w:

Physics for Economy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 60.

Tytuł:

Incidentally diagnosed epithelioid trophoblastic tumor immediately after delivery: a case report
Przypadkowe rozpoznanie nowotworu nabłonkowatokomórkowego trofoblastu bezpośrednio po porodzie – opis przypadku

Autorzy:

Kwon, Hyun Young
Park, Jung-Woo

Powiązania:

https://bibliotekanauki.pl/articles/1030115.pdf

Data publikacji:

2016

Wydawca:

Medical Communications

Tematy:

epithelioid trophoblastic tumor
gestational trophoblastic disease
rare tumor
uterine neoplasm

Opis:

Epithelioid trophoblastic tumor is a rare malignant lesion of gestational trophoblastic disease, and constitutes an abnormal proliferation of placental trophoblasts. Patients with epithelioid trophoblastic tumor are usually of reproductive age, and have had previous gestations including full-term deliveries, molar pregnancies and abortions. The interval between antecedent gestational events and the diagnosis of epithelioid trophoblastic tumor usually ranges from 0 to 264 months (mean, 84 months). Herein, we report a 42-year-old Korean woman (gravida 2, para 2). At 38 weeks of gestation, she underwent a repeat cesarean section and then hysterectomy due to uterine atony. She was incidentally diagnosed with epithelioid trophoblastic tumor, and postoperatively no metastatic disease was observed. The patient presented no clinical evidence of tumor recurrence for 5 years after surgery. This case is remarkable because epithelioid trophoblastic tumor is a rare disease, and the diagnosis of epithelioid trophoblastic tumor followed immediately after delivery.
Nowotwór nabłonkowatokomórkowy trofoblastu (epithelioid trophoblastic tumor) to rzadka złośliwa postać ciążowej choroby trofoblastycznej. Charakteryzuje się nieprawidłowym rozrostem komórek trofoblastu. Zmiany tego typu rozpoznaje się u kobiet w wieku rozrodczym z ciążą w wywiadzie, zarówno donoszoną, jak i przedwcześnie zakończoną, również z zaśniadem groniastym. Czas między ciążą a rozpoznaniem nowotworu nabłonkowatokomórkowego trofoblastu wynosi od 0 do 264 miesięcy (średnio 84 miesiące). Przedstawiamy przypadek 42-letniej pacjentki z Korei (gravida 2, para 2), u której w 38. tygodniu ciąży wykonano cięcie cesarskie, a następnie histerektomię ze względu na atonię macicy. Przypadkowo rozpoznano nowotwór nabłonkowatokomórkowy trofoblastu, a po zabiegu nie zaobserwowano przerzutów. Pacjentka nie wykazywała cech nawrotu przez 5 lat po zabiegu. Prezentowany przypadek jest szczególny, ponieważ nowotwór nabłonkowatokomórkowy trofoblastu to rzadkość, a rozpoznano go bezpośrednio po porodzie.

Źródło:

Current Gynecologic Oncology; 2016, 14, 3; 174-177
2451-0750

Pojawia się w:

Current Gynecologic Oncology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 61.

Tytuł:

Determination of rare earth elements content in hard coal type 31.1

Autorzy:

Baron, Rafał

Powiązania:

https://bibliotekanauki.pl/articles/409812.pdf

Data publikacji:

2020

Wydawca:

STE GROUP

Tematy:

mining industry
processing of hard coal
rare earth elements (REE)

Opis:

The aim of the article is to present the results of laboratory analyses determining the content of rare earth elements (REE) in hard coal type 31.1. Coal was extracted directly from the mining excavation located in the Upper Silesian Coal Basin. Mass spectrometry tests with ionization in inductively coupled plasma (ICP-MS), were aimed at the quantitative analysis of the share of REE in coal, taking into account the economic aspects of recovery of these elements. Fine ground hard coal samples and ashes obtained after coal burning were assessed for the rare earth elements concentration. Results of the rare earth elements concentration (lanthanum and cerium) in hard coal are similar in the values obtained in previous tests. The current analyses present higher concentration of europium or neodymium. The article also contains the concept of possible future research work, consisting in the recovery of rare earth elements using, among others, a classifying hydrocyclone.

Źródło:

Management Systems in Production Engineering; 2020, 4 (28); 240-246
2299-0461

Pojawia się w:

Management Systems in Production Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 62.

Tytuł:

Dziecko z achondroplazją – ujęcie interdyscyplinarne z perspektywy biologii i pedagogiki
A child with achondroplasia – interdisciplinary approach from the perspective of biology and pedagogy

Autorzy:

Wojda, Iwona
Mikler-Chwastek, Anna

Powiązania:

https://bibliotekanauki.pl/articles/2079517.pdf

Data publikacji:

2020-11-10

Wydawca:

Akademia Pedagogiki Specjalnej im. Marii Grzegorzewskiej. Wydawnictwo APS

Tematy:

achondroplazja
choroba rzadka
wspieranie rozwoju
achondroplasia
rare disease
development support

Opis:

Artykuł jest próbą całościowego i interdyscyplinarnego spojrzenia na achondroplazję – chorobę rzadką (dotyczy ok. 1 na 25 000 osób), uwarunkowaną genetycznie (spowodowana mutacją w genie kodującym receptor FGFR3). Podjęto w nim próbę opisania biologicznych przyczyn achondroplazji, poruszając te zagadnienia dotyczące biologii człowieka, które są niezbędne do zrozumienia powodów niskorosłości. Opisano również sposoby dziedziczenia tej choroby. Ponadto dokonano charakterystyki niskorosłego dziecka i jego fizycznych możliwości, co może być pomocne zarówno dla rodziców, jak i pracowników placówek wychowawczo-oświatowych. Dzieci te, ponieważ nie mają wskazań do nauczania indywidualnego, mogą dobrze funkcjonować w środowisku przedszkolnym i szkolnym. Jednakże mogą borykać się z trudnościami o podłożu społeczno-emocjonalnym, gdyż niski wzrost bywa przyczyną kłopotów z samooceną, a także może okazać się barierą w budowaniu relacji rówieśniczych. Stąd całościowe spojrzenie na dziecko dotknięte achondroplazją jest ważne, by rzetelnie zająć się wspieraniem jego rozwoju oraz edukacją.
The current work is an attempt to look at the problem of achondroplasia in a holistic and thus interdisciplinary way. Achondroplasia is a genetically determined disease caused by a mutation in the gene encoding the FGFR3 receptor. We have attempted to describe the biological causes of achondroplasia, addressing those issues in human biology that are necessary to understand the reasons for short stature. We also describe the chances and mechanisms of inheriting this disease. In addition, the description of the structure of a small child and his or her physical abilities which is included in the article will be helpful for the parents and in educational institutions. The children can function well in pre-school and school environments, as there are no indications for individual teaching. However, they may struggle with social and emotional difficulties, as short stature may cause problems with self-esteem, and may also be a barrier in building peer relationships. A holistic view of a child affected by achondroplasia is important to honestly support their development and education.

Źródło:

Człowiek - Niepełnosprawność - Społeczeństwo; 2020, 50(4); 109-123
1734-5537

Pojawia się w:

Człowiek - Niepełnosprawność - Społeczeństwo

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 63.

Tytuł:

Możliwości pozyskiwania wysokoprocentowych koncentratów metali ziem rzadkich w Polsce : aspekty surowcowo-technologiczne pozyskiwania metali ziem rzadkich w warunkach krajowych
Material and Technological Aspects of Rare Earth Metals Acquisition in Poland

Autorzy:

Jarosiński, A.
Tora, B.

Powiązania:

https://bibliotekanauki.pl/articles/318081.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Przeróbki Kopalin

Tematy:

metale ziem rzadkich
przeróbka
technologie
rare earth metals
processing
technologies

Opis:

W pracy tej skupiono się na rozwiązaniach technologicznych, w tym innowacyjnych, pozyskiwania koncentratów Metali Ziem Rzadkich zgodnie z zasadami zrównoważonego rozwoju. Opracowanie ukierunkowano wokół możliwości technologiczno-technicznych pozyskiwania wysokoprocentowych koncentratów metali ziem rzadkich z alternatywnych źródeł w warunkach krajowych.
This work focused on technological solutions, including innovative ones, obtaining concentrates of Rare Earth Metals in accordance with the principles of sustainable development. The study was focused on the technological and technical possibilities of obtaining high-percentage rare earth concentrates from alternative sources in polish conditions.

Źródło:

Inżynieria Mineralna; 2017, R. 18, nr 2, 2; 93-100
1640-4920

Pojawia się w:

Inżynieria Mineralna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 64.

Tytuł:

119Sn hyperfine interactions in REAuSn (RE = rare earth)

Autorzy:

Łątka, K.
Gurgul, J.

Powiązania:

https://bibliotekanauki.pl/articles/148307.pdf

Data publikacji:

2007

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

antiferromagnetism
Mössbauer studies
rare earth ternary compounds
magnetically ordered materials

Opis:

Intermetallic REAuSn (RE = rare earth elements) compounds were studied by means of X-ray diffraction (XRD), magnetic measurements and 119Sn Mössbauer spectroscopy. It was shown that the majority of them exhibit complex antiferromagnetic ordering at low temperatures. The nature of hyperfine interactions has been discussed based on gamma-ray absorption spectroscopy together with magnetic and structural data. Lanthanide contraction is reflected in the lattice parameters and isomer shifts. Strong experimental arguments support correlation between crystallographic type of structure and magnetic disordering in investigated compounds.

Źródło:

Nukleonika; 2007, 52, supl. 1; 63-66
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 65.

Tytuł:

Effect of Magnet Scrap Size on the Extraction Behavior of Heavy Rare Earth Elements by Liquid Metal Extraction

Autorzy:

Nam, Sun-Woo
Rasheed, Mohammad Zarar
Park, Sang-Min
Lee, Sang-Hoon
Kim, Do-Hyang
Kim, Taek-Soo

Powiązania:

https://bibliotekanauki.pl/articles/355705.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

liquid metal extraction
rare earth elements
recycling
oxidation
magnet scrap

Opis:

Liquid metal extraction (LME) process results in 100% neodymium (Nd) extraction but the highest extraction efficiency reportedfor Dysprosium (Dy) so far is 74%. Oxidation of Dy is the major limiting factor for incomplete Dy extraction. In order to enhance the extraction efficiency and to further investigate the limiting factors for incomplete extraction, experiments were carried out on six different particle sizes of under 200 μm, 200-300 μm, 300-700 μm, 700-1000 μm, 1000-2000 μm and over 2000 μm at 900°C with magnesium-to-magnet scrap ratio of 15:1 for 6, 24 and 48 hours, respectively. This research identified Dy₂ Fe₁₇ in addition toDy₂ O₃ phase to be responsible for incomplete extraction. The relationship between Dy₂ Fe₁₇ and Dy₂O₃ phase was investigated, and the overall extraction efficiency of Dy was enhanced to 97%.

Źródło:

Archives of Metallurgy and Materials; 2020, 65, 4; 1273-1276
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 66.

Tytuł:

Crystal and electronic structures of TbCo0.29Li0.05Sn2 and TbCu0.25Li0.09Sn2

Autorzy:

Stetskiv, A.
Pavlyuk, V.

Powiązania:

https://bibliotekanauki.pl/articles/410318.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane

Tematy:

rare earths phases
crystal structure
electronic structure
X-ray diffraction

Opis:

The new quaternary stannides, TbCo0.29Li0.05Sn2 and TbCu0.25Li0.09Sn2 crystallizes in the orthorhombic CeNiSi2 structure type with space group Cmcm. The four independent 4c atom positions (m2m site symmetry), three are fully occupied by individual atoms (two by Sn and one by Tb atoms) and the fourth is occupied by Li and transition metals Co or Cu atoms with a statistical distribution. The Tb coordination polyhedron is a 21-vertex pseudo-Frank–Kasper polyhedron. One Sn atom is enclosed in a tricapped trigonal prism, the second Sn atom is in a cuboctahedron and the statistically distributed (Li,Co or Cu) site is in a tetragonal antiprism with one added atom. Electronic structure calculations were used for the elucidation of reasons for and the ability of mutual substitution of lithium and transition metals. Positive charge density was observed around the rare earth atom and the Li and transition metal atoms, the negative charge density in the proximity of the Sn atoms.

Źródło:

Chemistry, Environment, Biotechnology; 2014, 17; 7-15
2083-7097

Pojawia się w:

Chemistry, Environment, Biotechnology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 67.

Tytuł:

Evaluation of alkali processing for the recycling of rare earth values from spent fluorescent lamps

Autorzy:

Shukla, Neha
Tanvar, Himanshu
Dhawan, Nikhil

Powiązania:

https://bibliotekanauki.pl/articles/1449193.pdf

Data publikacji:

2020

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

fluorescent lamps
rare earth elements
activation energy
recovery
cerium
terbium

Opis:

Phosphor samples collected after crushing and sieving of discarded fluorescent lamps comprise approximately 31 % rare earth elements in the form of $Y_{1.90}Eu_{0.10}O_3$, $Al11Ce_{0.67}MgO_{19}Tb_{0.33}$, and $Al_{10.09}Ba_{0.96}Mg_{0.91}O_{17}$: $Eu^{2+}$ phase. Direct leaching and mechanical activation assisted leaching are incapable of recovering $Ce$, $Tb$ values from the $Al_{11}Ce_{0.67}MgO_{19}Tb_{0.33}$ phase. Heat treatment with $NaOH$ was found successful for dissociation of $Ce$, $Tb$ phase via substitution of rare-earth ion by $Na^+$ ion to form rare earth oxide and water-soluble $NaAlO_2$. $Y$, $Eu$, $Ce$, and $Tb$ values were recovered from heattreated mass in a two-step leaching process followed by recovery from the leach solution by oxalic acid precipitation. Over 95 % extraction rate was attained after heat treatment at 400 °C with 150 wt-% $NaOH$ for 1 h. It was found that $Y$, $Eu$ containing phase does not take part in the heat treatment process whereas the $Ce$, $Tb$ phase undergoes a solid-state chemical reaction with $NaOH$ via product layer diffusion model with 41.5 kJ/mol activation energy. Approximately 15 g mixed oxide (purity >95 %) of $Y$ (79 %), $Eu$ (7 %), $Ce$ (5 %), and $Tb$ (4 %) could be recovered from 100 units of discarded FLs. Microwave treatment of phosphor and $NaOH$ (50 wt-%) yielded approximately 42 % $Y$, 100 % $Eu$, 65 % $Ce$, and 70 % Tb recovery in just 5 min. Approximately 9 g of REO and 5 g of cerium enriched leach residue were recovered from the microwave route within 5 min and depicted high microwave potential application in the recovery of $Ce$ and $Tb$ values from waste phosphor sample.

Źródło:

Physicochemical Problems of Mineral Processing; 2020, 56, 4; 710-722
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 68.

Tytuł:

Separation of rare earth elements from the leaching solution of waste phosphors by solvent extraction with Cyanex 272 and its mixture with Alamine 336

Autorzy:

Xing, Weidong
Lee, Man Seung

Powiązania:

https://bibliotekanauki.pl/articles/1449503.pdf

Data publikacji:

2020

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

phosphors
rare earth elements
HCl solution
solvent extraction
Cyanex 272

Opis:

Waste phosphors contain rare earth elements (REEs) such as yttrium (Y), europium (Eu), cerium (Ce), terbium (Tb) and lanthanum (La). Separation of these REEs from the leaching solution of waste phosphors was investigated by solvent extraction with single Cyanex 272, binary mixture (mixture of Cyanex 272 and Alamine 336), ionic liquid (prepared by Cyanex 272 and Aliquat 336) in kerosene. The effect of solution pH and extractants concentration was mainly investigated. The results indicated that Y(III) was selectively extracted by single Cyanex 272 over the other four REEs from the HCl solution with initial pH range from 3 to 5. Synergistic extraction with the binary mixture was enough for the extraction of Y(III), Tb(III) and Eu(III) with a small amount of Ce(III). Scrubbing with pure Y(III) solution with intermediate acidity was effective in scrubbing Ce(III) from the loaded binary mixture organic phase. Stripping behavior of the Y(III), Tb(III) and Eu(III) by HCl solution was similar to each other. Tb(III) and Eu(III) can be separated by extraction with the binary mixture followed by scrubbing with pure Tb(III) solution. McCabe-Thiele diagrams were constructed for the extraction of Y(III) by single Cyanex 272 and that of Tb(III) by the mixture. A process was proposed for the separation of REEs from the leaching solution of waste phosphors by solvent extraction.

Źródło:

Physicochemical Problems of Mineral Processing; 2020, 56, 1; 184-194
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 69.

Tytuł:

Aktualne problemy medycyny – technika czy etyka?
Contemporary problems in medicine – technique or ethics?

Autorzy:

Płazak, Wojciech

Powiązania:

https://bibliotekanauki.pl/articles/691070.pdf

Data publikacji:

2018

Wydawca:

Copernicus Center Press

Tematy:

medical ethics
medical standards
medical financing
rare diseases
elderly patients

Opis:

Technical and pharmacological revolution in contemporary medicine has not resolved the ethical problems that seem to be more relevant today than ever before. Most of the papers that concern medical ethics focus on `great' problems, such as human genome sequencing, organizms cloning and quantitative or qualitative interference with life creation. This article, however, describes practical ethical problems that the doctors face in every-day practice. First of all, the problem of how thestandards of prophilaxis and treatment should be established when the costs exceed financial possibilities of a health system. Secondly, how to face the problem of rare diseases when the cost of a single patient treatment may be equal to the whole medical department budget. Thirdly, how to procede with elderly patients with multiple diseases qualified for invasive procedures. All of these examples share the common base: in these cases the technical equipment is at our disposal, yet we cannot or we do not want to use it.

Źródło:

Zagadnienia Filozoficzne w Nauce; 2018, 65
0867-8286
2451-0602

Pojawia się w:

Zagadnienia Filozoficzne w Nauce

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 70.

Tytuł:

Stability of monazite and disturbance of the Th-U-Pb system under experimental conditions of 250–350 °C and 200–400 MPa

Autorzy:

Budzyń, B.
Konečný, P.
Kozub-Budzyń, G. A.

Powiązania:

https://bibliotekanauki.pl/articles/191272.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Geologiczne

Tematy:

monazite
apatite
steacyite
rare earth elements (REE)
geochronology
experimental petrology

Opis:

This experimental study provides important data filling the gap in our knowledge on monazite stability under conditions of fluid-mediated low-temperature metamorphic alteration and post-magmatic hydrothermal alterations. The stability of monazite and maintenance of original Th-U-total Pb ages were tested experimentally under P-T conditions of 250–350 °C and 200–400 MPa over 20–40 days. The starting materials included the Burnet monazite + K-feldspar ± albite ± labradorite + muscovite + biotite + SiO₂ + CaF₂ and 2M Ca(OH)₂ or Na₂Si₂O₅ + H₂O fluid. In the runs with 2M Ca(OH)₂, monazite was unaltered. REE-enriched apatite formed at 350 °C and 400 MPa. The presence of the Na₂Si₂O₅ + H₂O fluid promoted the strong alteration of monazite, the formation of secondary REE-enriched apatite to fluorcalciobritholite, and the formation of REE-rich steacyite. Monazite alteration included the newly developed porosity, patchy zoning, and partial replacement by REE-rich steacyite. The unaltered domains of monazite maintained the composition of the Burnet monazite and its age of (or close to) ca. 1072 Ma, while the altered domains showed random dates in the intervals of 375–771 Ma (250 °C, 200 MPa run), 82–253 Ma (350 °C, 200 MPa), and 95–635 Ma (350 °C, 400 MPa). The compositional alteration and disturbance of the Th-U-Pb system resulted from fluid-mediated coupled dissolution-reprecipitation. In nature, such age disturbance in monazite can be attributed to post-magmatic alteration in granitic rocks or to metasomatic alteration during metamorphism. Recognition of potentially altered domains (dark patches in high-contrast BSE-imaging, developed porosity or inclusions of secondary minerals) is crucial to the application of Th-U-Pb geochronology.

Źródło:

Annales Societatis Geologorum Poloniae; 2015, 85, 2; 405-425
0208-9068

Pojawia się w:

Annales Societatis Geologorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 71.

Tytuł:

Anatomia przestępstwa. 25 lat minęło. Interesujący przypadek kradzieży książek i wykrycia zbrodni po latach
The Anatomy of a Crime Discovery after 25 Years. A Notable Case of Book Theft and its Detection

Autorzy:

Jørgensen, Jesper Düring

Powiązania:

https://bibliotekanauki.pl/articles/911892.pdf

Data publikacji:

2016-12-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Royal Library in Copenhagen
book theft
old and rare books

Opis:

The 11th September 2003 was quite an ordinary working day in the Royal Library – at least for the first few hours in the morning. At approximately 11.00 a.m., however, I was interrupted by the telephone. A polite lady introduced herself as the rare book specialist from Christie’s in London. From a consignor she had received the following work for sale: Propalladia de Bartholome de Torres Naharro.Dirigida... Napoles: por Ioan Pasqueto de Sallo, Naples 1517. Her investigation of a critical edition of Torres Naharro’s works from 1943 had established that only two copies of this particular work were known to exist. One incomplete copy in the National Library of Spain in Madrid, and one complete copy in The Royal Library in Copenhagen. This puzzled the keeper of books at the auction company, and she was keen to know whether she had a historic sensation in her hands or simply a stolen book.

Źródło:

Biblioteka; 2016, 20(29); 221-236
1506-3615
2391-5838

Pojawia się w:

Biblioteka

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 72.

Tytuł:

First record of the Improphantes geniculatus (Kulczynski, 1898) (Araneae, Linyphiidae) in Poland

Autorzy:

Rozwalka, R.
Lysiak, S.

Powiązania:

https://bibliotekanauki.pl/articles/841676.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego

Tematy:

first record
Improphantes geniculatus
Araneae
spider
rare species
Linyphiidae
Polska

Opis:

Improphantes geniculatus (Kulczyński 1898) is a rare steppe spider species, known from a few locations in Central Europe and from Southern part of Russia. Authors give information about afirst location of I. geniculatus in Poland, affirmed which is in “Góry Pieprzowe” Reserve near Sandomierz.

Źródło:

Zeszyty Naukowe Uniwersytetu Szczecińskiego. Acta Biologica; 2011, 18
1230-3976

Pojawia się w:

Zeszyty Naukowe Uniwersytetu Szczecińskiego. Acta Biologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 73.

Tytuł:

An Overview of Rare Earth Ores Beneficiation in Vietnam

Autorzy:

Nhu, Thi Kim Dung
Pham, Van Luan
Vu, Thi Chinh
Tran, Van Duoc

Powiązania:

https://bibliotekanauki.pl/articles/2020059.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Przeróbki Kopalin

Tematy:

rare earth
monazite
xenotime
bastnaesite
ziemie rzadkie
Wietnam
metale rzadkie

Opis:

Rare earth metals are used in electricity, electronics, nuclear, optics, space, metallurgy, superconducting and super magnetic materials, glass and ceramics, and agriculture. Some rare earth elements are added to fertilizers for crops and some trials for animal feed. Rare earth elements, except for radioactive promethium, are relatively abundant in the earth's crust. Vietnam has a tremendous rare earth potential, distributed mainly in the Northwest, including Nam Xe, Dong Pao, Muong Hum, and Yen Bai. There are many research projects on rare earth ores of different types globally, but the focus is mainly on the essential minerals, including monazite, xenotime, and bastnaesite. This report summarizes research data on rare earth ore intending to produce a general assessment of rare earth ore and its beneficiation technology in Vietnam.

Źródło:

Inżynieria Mineralna; 2021, 2; 227--236
1640-4920

Pojawia się w:

Inżynieria Mineralna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 74.

Tytuł:

Comparative analysis of soil magnetic susceptibility and concentration of rare earth elements in soil of problematic areas

Autorzy:

Zawadzki, Jarosław
Fabijańczyk, Piotr

Powiązania:

https://bibliotekanauki.pl/articles/2064859.pdf

Data publikacji:

2019

Wydawca:

STE GROUP

Tematy:

soil pollution
rare earth elements
magnetometry
magnetic susceptibility
industrial areas

Opis:

Soil contamination with rare earth metals (REE) can have both direct and indirect connection with industrial activity and ore-exploration. In the studies conducted so far, the presence of rare earth elements in coal seams, coal combustion waste as well as fly ash was found. It is important that detailed studies of the REE content in soil were not carried out in Poland. Until now, in a few studies, a high content of cerium and lanthanum was found in relation to the average content of the torn ones in the world. This work focuses on the areas under the influence of the industry associated with the extraction and combustion of hard coal, but also with other types of industry. Analyzes of REE content in soil were conducted in selected areas of the Upper Silesian Industrial Region and Norway, located near the Bjornevatn mine. In study areas, soil samples were collected and used for chemical and magnetometric measurements. Firstly, concentrations of REE were determined, and after that soil samples were used to measure soil magnetic susceptibility. Finally, statistical analyses were performed in order to check the correlation between REE concentrations in soil and soil magnetic susceptibility.

Źródło:

Multidisciplinary Aspects of Production Engineering; 2019, 2, 1; 81--90
2545-2827

Pojawia się w:

Multidisciplinary Aspects of Production Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 75.

Tytuł:

Exceptions from dioecy and sex lability in genus Salix

Autorzy:

Mirski, P.

Powiązania:

https://bibliotekanauki.pl/articles/41031.pdf

Data publikacji:

2014

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

rare exception
subdioecy
Salix
willow
hermaphroditism
polygamic system
sex lability

Opis:

Bisexualism (and its derivatives) is a rare exception in species which already acquired the dioecious breeding system. Although it occurs in some tree species, it is still rather uncommon, except for willows, in which bisexualism occurs in at least 18 species. In most willows such unusual individuals are subdioecious, hermaphroditic or monoecious, or produce intersexes (staminate flowers transform into pistillate flowers or the other way round). The frequency of non-dioecy can vary from a single individual to whole populations, but is in principle rare. Its possible causes are both environmental and genetic. In Salix sex lability is known to be affected by parasites and anthropogenic habitat change. In interspecific willow crosses there are numerous exceptions from dioecy that are mostly caused by polyploidization. Since sex determination in willows is genetic, environmental factors are expected to determine exclusively phenotypic sex traits.

Źródło:

Dendrobiology; 2014, 71
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 76.

Tytuł:

Phase Evolution During Extraction and Recovery of Pure Nd from Magnet

Autorzy:

Rasheed, Mohammad Zarar
Nam, Sun-Woo
Lee, Sang-Hoon
Park, Sang-Min
Cho, Ju-Young
Kim, Taek-Soo

Powiązania:

https://bibliotekanauki.pl/articles/2048880.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Liquid Metal Extraction
rare earth recycling
vacuum distillation
phase transformation

Opis:

Liquid Metal Extraction process using molten Mg was carried out to obtain Nd-Mg alloys from Nd based permanent magnets at 900°C for 24 h. with a magnet to magnesium mass ratio of 1:10. Nd was successfully extracted from magnet into Mg resulting in ~4 wt.% Nd-Mg alloy. Nd was recovered from the obtained Nd-Mg alloys based on the difference in their vapor pressures using vacuum distillation. Vacuum distillation experiments were carried out at 800°C under vacuum of 2.67 Pa at various times for the recovery of high purity Nd. Nd having a purity of more than 99% was recovered at distillation time of 120 min and above. The phase transformations of the Nd-Mg alloy during the process, from Mg12Nd to α-Nd, were confirmed as per the phase diagram at different distillation times. Pure Nd was recovered as a result of two step recycling process; Liquid Metal Extraction followed by Vacuum Distillation.

Źródło:

Archives of Metallurgy and Materials; 2021, 66, 4; 1001-1005
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 77.

Tytuł:

Potencial management of waste phosphogypsum with particular focus on recovery of rare earth metals

Autorzy:

Podbiera-Matysik, K.
Gorazda, K.
Wzorek, Z.

Powiązania:

https://bibliotekanauki.pl/articles/778042.pdf

Data publikacji:

2015

Wydawca:

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie

Tematy:

phosphogypsum waste
phosphogypsum conversion
rare earth elements (REE)
environmental threats

Opis:

Phosphogypsum is a noxious industrial waste contributing to global environmental and economic problems. This publication focuses above all on phosphogypsum resulting from the processing of apatite as a phosphorus bearing compound, since it contains considerable amounts of lanthanides due to its magma origin. The possibilities of its waste-free processing are large, however they require the application of suitable technologies, frequently expensive ones, and allowing for the individual characteristics of the given waste. The research works conducted so far confirm the possibility of applying phosphogypsum for the recovery of lanthanides, and the process enhances the removal of remaining impurities, thanks to which the purified calcium sulphate (gypsum) may find application for the production of construction materials.

Źródło:

Polish Journal of Chemical Technology; 2015, 17, 1; 55-61
1509-8117
1899-4741

Pojawia się w:

Polish Journal of Chemical Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 78.

Tytuł:

Effect of Annealing, Stoichiometry, and Surface on Magnetism of (Pr,Dy)FeCoB Microparticles Ensemble

Autorzy:

Kablov, E. N.
Ospennikova, O. G.
Kunitsyna, E. I.
Piskorskii, V. P.
Korolev, D. V.
Morgunov, R. B.

Powiązania:

https://bibliotekanauki.pl/articles/356579.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

rare earth metals
magnets
magnetisation
Mössbauer spectroscopy
X-ray spectroscopy

Opis:

Magnetic properties of powder (Pr,Dy)FeCoB ferrimagnetic alloys and effects of annealing, surface states were analyzed. X-ray photoelectron spectroscopy and Mössbauer spectra of powders indicate the effect of surface states on phase composition and magnetic properties of the studied powder, if particles average size is smaller than 10 μm. Effect of stoichiometry on magnetic anisotropy was found. Thermal stability of anisotropy field was proved by replacement of Fe atoms with Co atoms.

Źródło:

Archives of Metallurgy and Materials; 2017, 62, 3; 1923-1930
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 79.

Tytuł:

An overview of the association between lamprophyric intrusions and rare-metal mineralization

Autorzy:

Štemprok, Miroslav
Seifert, Thomas

Powiązania:

https://bibliotekanauki.pl/articles/2086506.pdf

Data publikacji:

2011

Wydawca:

Polskie Towarzystwo Mineralogiczne

Tematy:

lamprophyres
rare metals
Sn
W
Mo
bimodal dikes
mantle metasomatism

Opis:

Granite-related rare metal districts in orogenic settings are occasionally associated with lamprophyre dikes. We recorded 63 occurrences of lamprophyres in bimodal dike suites of about 200 granite bodies related to rare metal deposits. Most lamprophyres occur in Paleozoic and Mesozoic metallogenic provinces in the northern hemisphere. Lamprophyres which are associated with rare metal deposits are calc-alkaline (kersantites, minettes, spessartites) or more rarely alkaline lamprophyres (camptonites, monchiquites) which occur in the roof zone of complex granitic bodies as pre-granitic, intra-granitic, intra-ore or post-ore dikes. Most lamprophyres are spatially associated with dominant felsic dikes and/or with mafic dikes represented by diorites or diabases. Diorites and lamprophyres occasionally exhibit transitional compositions from one to another. Lamprophyres share common geochemical characteristics of highly evolved granitoids such as enrichment in K and F, increased abundances of Li, Rb, and Cs and enrichment in some HFSE (e.g. Zr, U, Th, Mo, Sn, W). Lamprophyres in rare metal districts testify to accessibility of the upper crust to mantle products at the time of rare metal mineralization and possible influence of mantle melts or mantle-derived fluids in the differentiation of granitic melts in the lower crust.

Źródło:

Mineralogia; 2011, 42, 2/3; 121--162
1899-8291
1899-8526

Pojawia się w:

Mineralogia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 80.

Tytuł:

DIAGNOSIS OF CHILDREN WITH SANFILIPPO DISEASE – PSYCHOLOGICAL, SOCIAL AND MOTOR ASSESSMENT

Autorzy:

Anikiej-Wiczenbach, Paulina
Rudnik, Agata
Limanówka, Monika
Wierzba, Jolanta
Mański, Arkadiusz

Powiązania:

https://bibliotekanauki.pl/articles/2137954.pdf

Data publikacji:

2020-11-20

Wydawca:

Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica

Tematy:

Bayley’s Scale III
cognitive functioning
rare disease
qualitative research

Opis:

Sanfilippo disease (mucopolysaccharidosis, MPS IIIA) is one of the types of mucopolysaccharidosis associated with extensive neurological effects and somatic symptoms. The consequences of neurodegeneration and cognitive impairment are manifested in challenges with the daily functioning of patients who experience problems with communication and following instructions. The aim of this study was to assess the cognitive functioning of three patients with MPS IIIA and to find patterns of neurodegeneration and to make their environment more friendly. Three boys (from 5.5 to 7 years) with MPS IIIA participated in the study. Each participant attended two meetings, and his functioning was assessed by three independent person (using two-way mirror). We used Bayley’s Scale III with some modifications. Interviews with parents were also included. The communication of patients was limited to some vocalizations. Patients presented instrumental use of items, but not all of them were able to repeat actions after diagnostician or presented object permanence. The results showed that the cognitive functioning of participants was significantly hindered by problems related to motor dysfunction, hyperactivity, and ataxia. The psychological data was collated with medical results. This study allows indicating new sources giving the possibility of child phenotype variability and to create specific interventions in the field of psychological therapy for patients with MPS IIIA and their families.

Źródło:

Acta Neuropsychologica; 2020, 18(4); 525-535
1730-7503
2084-4298

Pojawia się w:

Acta Neuropsychologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 81.

Tytuł:

Study on REE occurrence in a Svanbergite and basic ore characteristics

Autorzy:

Ma, Keyu
Zhang, Jie
Deng, Qiufeng
Men, Pengpeng
Zhang, Yusong
Shi, Xiulin

Powiązania:

https://bibliotekanauki.pl/articles/2146882.pdf

Data publikacji:

2022

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

svanbergite
rare earth elements (REEs)
occurrence state
crandallite
ore characteristics

Opis:

Svanbergite in Sichuan Province, China is a special middle-low grade phosphorus ore. It contains rare earth elements (REEs), aluminum, and strontium that can be exploited and utilized. In this study, several methods were used to systematically study the occurrence of REEs in the ore and basic ore characteristics. The ore, which was rich in REEs, Al, and Sr, was classified as marine sedimentary low-grade phosphorus ore. The main ore mineral was crandallite and pyrite, and independent REE minerals were not found. Crandallite was the main carrier mineral of useful elements, including P, REEs, Al, and Sr. REE+ was inferred to mainly exist in crandallite via isomorphism by replacing Ca2+ and H+. The crandallite was mainly characterized as fine-grained, and minerals were closely disseminated. The results from this study will provide a valuable reference for expanding available REE resources and the efficient comprehensive utilization of svanbergite.

Źródło:

Physicochemical Problems of Mineral Processing; 2022, 58, 3; art. no. 147377
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 82.

Tytuł:

High-temperature carbothermal dephosphorization of Malaysian monazite

Autorzy:

Udayakumar, Sanjith
Sheikh Abdul Hamid, Sheikh Abdul Rezan
Baharun, Norlia
Pownceby, Mark

Powiązania:

https://bibliotekanauki.pl/articles/2146886.pdf

Data publikacji:

2021

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

malaysian monazite concentrate
dephosphorization
carbothermal reduction
rare earth elements
graphite

Opis:

High-temperature carbothermal reduction experiments with graphite powder were conducted to assess the dephosphorization behavior of Malaysian monazite concentrate. Thermodynamic analysis of the possible dephosphorization reactions was conducted to evaluate the feasibility of the carbothermal reduction of the monazite phases. The effects of temperature, particle size, and monazite to carbon ratio were then investigated under different conditions. The carbothermal reduction experiments were conducted based on the Taguchi design method, and up to 97% of phosphorous removal was achieved under optimized conditions. The optimal conditions for dephosphorization were determined as; a reduction temperature of 1350 °C, a particle size of -75 μm, and monazite to carbon molar ratio of 0.3. Microstructural and phase characterization of the dephosphorized products revealed that CeO2, Nd2O3, La2O3, and Pr2O3 oxide phases were prominent, and no residual peaks of monazite remained in the reduced products. The information gained from the study can aid in the design of a suitable post-dephosphorization hydrometallurgical treatment for exploiting Malaysian monazite as a local source of REEs.

Źródło:

Physicochemical Problems of Mineral Processing; 2021, 57, 6; 140--155
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 83.

Tytuł:

Ion flotation and its applications on concentration, recovery, and removal of metal ions from solutions

Autorzy:

Arslan, Fatma
Bulut, Gülay

Powiązania:

https://bibliotekanauki.pl/articles/2146933.pdf

Data publikacji:

2022

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

ion flotation
heavy metals
rare earth metals
waste water
preconcentration

Opis:

Many industries, especially mining and metallurgy, deal with solutions containing ions. In some cases, these metal ions need to be concentrated and recovered from solutions and sometimes removed from wastewater. The ion flotation method has been applied for wastewater and water treatment, recovery of precious and platinum group metals, preconcentrating of rare earth elements, selective separation of multicomponent ions from dilute solutions, and analytical chemistry. It has been employed to separate heavy metals from a liquid phase using bubble attachment, originated in mineral processing. In these cases, ion flotation has an important place among other methods because it is a cheap and practical method. In this study, many ion flotation studies, especially applied at laboratory scale, were reviewed. This method gives very successful and promising results in removing heavy metals with toxic effects from wastewater and selective separation of metal ions from very low concentrated solutions. Ion flotation may take place in industrial scale operations with the new developments in flotation machines and collectors with better selectivity, high efficiency, lower cost, and environmental friendliness.

Źródło:

Physicochemical Problems of Mineral Processing; 2022, 58, 5; art. no. 152061
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 84.

Tytuł:

The impact of a Neogene basaltoid intrusion on the distribution of rare earth elements and yttrium in Carboniferous rocks from the Sumina area, Poland (SW part of Upper Silesian Coal Basin)

Autorzy:

Adamczyk, Zdzisław
Komorek, Joanna
Nowak, Jacek
Lewandowska, Małgorzata

Powiązania:

https://bibliotekanauki.pl/articles/139034.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

rare earth elements
Rare earth yttrium (REY)
neogene basaltoid intrusion
Upper Silesian Coal Basin (USCB)
pierwiastki ziem rzadkich
neogen
bazaltoidy
Górnośląskie Zagłębie Węglowe (GZW)

Opis:

The Neogene basaltoid intrusions found in the S-7 borehole in the Sumina area (USCB) caused transformations of the adjacent Carboniferous rocks. The mineral and chemical compositions of the basaltoides are similar to those of the Lower Silesian basaltoides. The transformations that took place in the vicinity of the intrusion were manifested in the formation of natural coke, the secondary mineralization of these rocks (calcite, chlorite, zeolites and barite) and in the specific distribution of rare earths (REY). Among REY, the light elements (LREY) had the highest share, while the heavy elements (HREY) had the lowest share. Regardless of the lithological type of the analyzed rock, with increasing distance from the intrusion, the percentage of MREY and HREY elements increases at the expense of the light elements LREY. All analyzed distribution patterns of the REYs are characterized by the occurrence of anomalies, which often show a significant correlation with the distance of sampling points from the basaltoid intrusion. The specific distribution of REYs in the vicinity of the intrusion of igneous rocks is an indication of the impact of hydrothermal solutions associated with the presence of basaltoides on the rocks closest to them located at a temperature of over 200°C

Źródło:

Acta Geologica Polonica; 2020, 70, 1; 31-49
0001-5709

Pojawia się w:

Acta Geologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 85.

Tytuł:

Hydrogen Evolution Reaction on the Oxidized Surfaces of the Fe-Based Amorphous Alloys

Autorzy:

Danyliak, M.
Boichyshyn, L.
Pandiak, N.

Powiązania:

https://bibliotekanauki.pl/articles/1031001.pdf

Data publikacji:

2018-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

amorphous alloys
oxidized surfaces
rare-earth metals
hydrogen evolution reaction
electrocatalysis

Opis:

Electrochemical hydrogen evolution on oxidized electrodes of the amorphous metallic alloys Fe₈₂Nb₂B₁₄RE₂ (RE = Tb, Dy) in 5.0 M KOH aqueous solution in the temperature range 298-313 ± 0.5 K has been investigated. A sample Fe₈₄Nb₂B₁₄ was used as reference alloy. The highest corrosion resistance during multiple scanning of the potential exhibited the alloys doped by terbium and dysprosium. High values of the exchange currents, characterizing catalytic ability and corrosion resistance characterize Fe₈₂Nb₂B₁₄RE₂ amorphous alloys as promising electrode materials for hydrogen evolution reaction.

Źródło:

Acta Physica Polonica A; 2018, 133, 4; 1103-1107
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 86.

Tytuł:

The influence of nitrogen fertilization with ENTEC-26 and ammonium nitrate on the concentration of thirty-one elements in carrot (daucus carota l.) storage roots
Wpływ nawożenia azotem z ENTEC-26 i saletrą amonową na zawartość trzydziestu jeden pierwiastków w korzeniach spichrzowych marchwi (Daucus carota L.)

Autorzy:

Smolen, S.
Sady, W.
Wierzbinska, J.

Powiązania:

https://bibliotekanauki.pl/articles/1188055.pdf

Data publikacji:

2012

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza

Tematy:

nitrogen fertilization
nitrification inhibitor
DMPP
heavy metals
rare elements
trace elements

Opis:

Aplikowanie inhibitorów nitryfikacji wraz z nawozami azotowymi (zawierającymi zredukowane formy azotu: amonową i amidową) może wzmacniać zakwaszające działanie tych nawozów na glebę. W efekcie może to prowadzić do obniżenia pH oraz zmian zawartości dostępnych dla roślin form metali ciężkich i pierwiastków śladowych w glebie. Celem badań była ocena wpływu stosowania nawozów azotowych z ENTEC-26 (zawierającego inhibitor nitryfikacji 3,4-dimetylopyrazolofosfat /DMPP/) i saletrą amonową na skład mineralny korzeni spichrzowych marchwi. Przeprowadzono dwuletnie badania z polową uprawą marchwi Kazan Fj. Doświadczenie założono metodą split-plot w czterech powtórzeniach. Obiektami badań były kombinacje ze zróżnicowanym nawożeniem azotem: 1 - kontrola (bez nawożenia azotem), 2 - ENTEC-26 35+35, 3 - ENTEC-26 70+70, 4 - ENTEC-26 105+105, 5 - saletra amonowa 35+35, 6 - saletra amonowa 70+70, 7 - saletra amonowa 105+105, gdzie: 35+35, 70+70 i 105+105 oznacza dawkę azotu w kg N ha- 1 stosowaną w nawożeniu przedsiewnym i w nawożeniu pogłównym. w korzeniach spichrzowych oraz w glebie po uprawie marchwi zawartość: Ag, Al, B, Ba, Ca, Ce, Co, Cr, Dy, Fe, Ga, In, K, La, Li, Lu, Mg, Mn, Na, Ni, P, Pb, S, Sc, Sn, Sr, Ti, Tm, Y, Yb i V była oznaczana techniką ICP-OES. Nawożenie azotem miało istotny wpiyw na zawartość Co, Fe, In, Li, Mn, Ni, S, Sc, Sr, Y, Yb i V w marchwi. Jednakże wpiyw ten był zróżnicowany w zależności od zastosowanego sposobu nawożenia azotem w badanych kombinacjach. Nie stwierdzono natomiast istotnego oddziaływania nawożenia azotem na zawartość Ag, Al, B, Ba, Ca, Ce, Cr, Dy, Ga, K, La, Lu, Mg, Na, P, Pb, Ti i Sn w marchwi. W porównaniu z kontrolą, zastosowane nawożenie azotem we wszystkich dawkach zarówno w formie ENTEC-26, jak i saletry amonowej powodowało zmniejszenie zawartości Mg, Al, B, Ba, Ce, Fe, Ga, La, Ni, Pb, Ti, Y, V, Cr, Dy, In, Li, Lu, Sc i Yb oraz zwiększenie zawartości Ca, Sr i Ag w glebie po uprawie marchwi. Jednakże wykazane zmiany zawartości tych pierwiastków w glebie pod wpływem nawożenia azotem nie miały odzwierciedlenia w ich zawartości w korzeniach spichrzowych marchwi.

Źródło:

Journal of Elementology; 2012, 17, 1; 115-137
1644-2296

Pojawia się w:

Journal of Elementology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 87.

Tytuł:

Subjective risk estimation of the rare event

Autorzy:

Nguyen, Hoang

Powiązania:

https://bibliotekanauki.pl/articles/241939.pdf

Data publikacji:

2019

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

rare event
subjective risk estimation
intuitionistic fuzzy set
ship propulsion risk

Opis:

In the safety engineering, the most frequently disadvantage in risk estimation is the lack of data. In such cases, we have to rely on subjective estimations made by persons with practical knowledge in the field of interest, i.e. experts. However, in some realistic situations, they may have uncertainty in the perceiving and evaluation of the problem considered or limited knowledge of the rare events, such as the consequences of the seagoing ship propulsion failures. The probabilistic models of the risk estimation turn out to be insufficient in modelling the subjective uncertainty. The fuzzy methods are viewed to be powerful in dealing with ambiguity and uncertainty that can be used to handle with the subjective estimation. This article addresses the intuitionistic fuzzy method in the subjective estimation of the ship propulsion failure consequences as rare event risk. In the article, a subjective model of the ship propulsion risk is developed as scenarios of the different subsequent consequences of loss of ship propulsion function until a seriously severe accident resulting in loss of seaworthiness. The model proposes an approach combining AHP method and intuitionistic fuzzy method to assess the occurrence probability and severe probability of these rare events based on the expert opinions. In order to show the applicability of the proposed model, a study case of the propulsion risk of the container carrier operating on the North Atlantic lines is conducted.

Źródło:

Journal of KONES; 2019, 26, 1; 103-110
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 88.

Tytuł:

Effect of Microalloying with Nickel Aluminides and Rare-Earth Metals on the Structure of Al-5% Cu Aluminum Alloy

Autorzy:

Ri, E.
Ri, K.
Deev, V.
Prusov, E.

Powiązania:

https://bibliotekanauki.pl/articles/355441.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

aluminum alloys
master alloy
rare-earth metals
eutectic
α-solid solution

Opis:

The effect of the complex ligature with nickel and REM (Ce, La) aluminides on the structure formation, the nature of the distribution of the elements, and the microhardness of the structural constituents of Al-5 wt.% Cu aluminum alloy were investigated. On the example of microalloying of the Al-5 wt.% Cu alloy with a master alloy containing Ni and REM (Ce, La) aluminides it was shown that a redistribution of Al and Cu occurs in α-solid solution and eutectic. This is reflected in the refinement of α-solid solution and eutectic at 0.15 wt.% of the master alloy addition and, accordingly, increases the microhardness of α-solid solution by 100 MPa and eutectic by 125 MPa.

Źródło:

Archives of Metallurgy and Materials; 2020, 65, 2; 509-513
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 89.

Tytuł:

Au-RE-TiO2 nanocomposites. surface characteristics and photoactivity

Autorzy:

Krukowska, A.
Reszczynska, J.
Zaleska, A.

Powiązania:

https://bibliotekanauki.pl/articles/109645.pdf

Data publikacji:

2014

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

photocatalysis
modified TiO2
rare earth metal
Au nanoparticles
toluene degradation

Opis:

Photocatalysts based on TiO2 co-doped with rare earth metal (RE) and gold nanoparticles have been prepared using a sol-gel method and followed by gold reduction. Specific surface areas of the modified photocatalysts were calculated by the Brunauer-Emmett-Teller method (BET). Diffuse reflectance spectra of the obtained photocatalysts were recorded with a UV-Vis spectrophotometer (DRS UV-Vis). The influence of the type of rare earth metal on photoactivity of Au-RE-TiO2 nanocomposites in model reaction manifested by toluene photodegradation in a gas phase was investigated. The obtained results showed that photodegradation of toluene in the gas phase is possible over Au-RE-TiO2 irradiated by UV or Vis light. The Au-RE-TiO2 photocatalysts relative to undoped TiO2, did not caused an increase of toluene degradation in the air under visible light. The samples doped with Er3+ or Pr3+ presented the highest activity in solar light among of Au-RE-TiO2. It was observed that both metal dopants affected the surface area of TiO2. The Au-RE-TiO2 photocatalysts relative to undoped TiO2 exhibited the absorption properties under Vis light.

Źródło:

Physicochemical Problems of Mineral Processing; 2014, 50, 2; 551-561
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 90.

Tytuł:

Seepage process on weathered crust elution-deposited rare earth ores with ammonium carboxylate solution

Autorzy:

Zou, Hualiang
Zhang, Zhenyue
Chen, Zhuo
Liu, Defeng
Chai, Xiuwei
Zhang, Han
Chi, Ru-an

Powiązania:

https://bibliotekanauki.pl/articles/1449672.pdf

Data publikacji:

2020

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

permeability
weathered crust elution-deposited rare earth ore
ammonium carboxylate
hydrodynamics

Opis:

In order to reveal the seepage law of ammonium carboxylate solution in the in-situ leaching process of weathered crust elution-deposited rare earth ores, the effects of concentration, pH, temperature, particle size and porosity on permeability were discussed in this paper. The results shown that the seepage of the leaching agent solutions in the rare earth ore follows Darcy's law and displays a laminar flow under the conditions of this experiment and seepage velocity can be increased by changing leaching conditions. The permeability coefficients are inversely proportional to concentrations of ammonium acetate, ammonium tartrate and ammonium citrate whose concentration is greater than 0.7wt%, because the insoluble complexes formed by the reaction of ammonium citrate with RE3+ at lower concentration n decrease the permeability coefficient. The permeability coefficients of ammonium carboxylate solutions increase firstly and then decrease with the pH increased. The maximum of permeability coefficients of ammonium acetate, ammonium tartrate and ammonium citrate solution were 2.92, 1.91 and 2.70, respectively, while the pH of solution were 5, 6 and 7, respectively. Increasing temperature is beneficial for the seepage of ammonium carboxylate solution in orebody, therefore, it is helpful for leaching operation in summer. Moreover, clay minerals particle size and porosity are the key factors affecting the permeability of ammonium carboxylate solution in orebody. The permeability coefficients of ammonium acetate, ammonium tartrate and ammonium citrate solutions are 2.92×104cm/s,1.90×10-4cm/s and 2.69×10-4cm/s, respectively, at the same temperature of 293K, original particle size and porosity of the ore. Ammonium acetate solution has the best permeability in orebody.

Źródło:

Physicochemical Problems of Mineral Processing; 2020, 56, 1; 89-101
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 91.

Tytuł:

Two species of true morels (the genus Morchella, Ascomycota) recorded in the Ojcow National Park (south Poland)

Autorzy:

Baran, Jakub
Boroń, Piotr

Powiązania:

https://bibliotekanauki.pl/articles/952595.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

rare fungi
ascomycota
fungi
nature conservation
edible fungi
mycobiota of
poland

Opis:

In this paper, we present results of survey on the occurrence of true morels, conducted in the Ojców National Park (ONP). The first data about true morels from the area of the ONP date back to the nineteenth century. However, despite multiple surveys in the next decades, their presence has not been confirmed. Therefore, true morels were thought to be extinct in the ONP. In 2014 and 2015, two morphotypes of true morel fruiting bodies were discovered in two sites, identified as black morels and yellow morels. In 2016, we collected three fruiting bodies for detailed morphological characterization and molecular identification. According to our results, these morels were identified as Morchella deliciosa and Morchella esculenta. Our finding is the first confirmation of the occurrence of both species (as they are presently recognized) in Poland.

Źródło:

Acta Mycologica; 2017, 52, 1
0001-625X
2353-074X

Pojawia się w:

Acta Mycologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 92.

Tytuł:

Contributions to the flora of steppes of the Black Sea Region [Ukraine]

Autorzy:

Moisienko, I
Gorski, P.
Boiko, P.

Powiązania:

https://bibliotekanauki.pl/articles/878109.pdf

Data publikacji:

2002

Wydawca:

Uniwersytet Przyrodniczy w Poznaniu

Tematy:

Ukraine
Black Sea Region
rare species
flora
Festuco-Brometea
steppe
contribution

Źródło:

Roczniki Akademii Rolniczej w Poznaniu. Botanika; 2002, 05
1508-9193

Pojawia się w:

Roczniki Akademii Rolniczej w Poznaniu. Botanika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 93.

Tytuł:

The stability of xenotime in high Ca and Ca-Na systems, under experimental conditions of 250–350°C and 200–400 MPa : the implications for fluid-mediated low-temperature processes in granitic rocks

Autorzy:

Budzyń, B.
Kozub-Budzyń, G. A.

Powiązania:

https://bibliotekanauki.pl/articles/2060298.pdf

Data publikacji:

2015

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

xenotime
yttrium fluorapatite
yttrium silicate
rare earth elements (REE)
experimental petrology

Opis:

he stability of xenotime was tested by experiments in the presence of a silicate mineral assemblage and two different fluids, 2M Ca(OH)2 or Na2Si2O5 + H2O, under P-T conditions of 200-400 MPa and 250-350°C. The xenotime was stable in runs with 2M Ca(OH)2, replicating the low-temperature metasomatic alterations of granitic rocks, except in experiment at 350°C and 400 MPa, where some (Y,REE)-rich fluorapatite formed. Experiments with Na2Si2O5 + H2O resulted in significant xenotime alteration and partial replacement by an unknown (Y,HREE)-rich silicate, and in the formation of minor amounts of (Y,REE)-rich fluorapatite. The latter indicate preferential partitioning of Y and REE into silicates over phosphates during low-temperature, metasomatic processes in a high Na-Ca system, similar to peralkaline granitic rocks.

Źródło:

Geological Quarterly; 2015, 59, 2; 316-324
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 94.

Tytuł:

Expansion of the liverwort Tetralophozia setiformis in the Polish Tatra Mts [Western Carpathians]

Autorzy:

Gorski, P

Powiązania:

https://bibliotekanauki.pl/articles/57685.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Tatras Mountains
rare species
Polska
species expansion
botany
Tetralophozia setiformis
liverwort

Opis:

The article presents the spread of the liverwort Tetralophozia setiformis in the Polish Tatra Mts (Western Carpathians). In the years 1814-1957 only four localities of this plant have been found in High Tatra Mts. Since the 90-ties, an increase in recording of T. setiformis has been noticed, including the first locality in Western Tatra Mts. Currently, there are 17 localities of T. setiformis in the Polish Tatra Mts. In many of them, the plant occurs abundantly; it also remains in the places of its first records. The species has a narrow ecological scale. It is attached to rock blocks, mostly of north exposition. It creates small, single-species turfs plaited in mossy pillows of alpine grasslands of Oreochloo distichae-Juncetum trifidi racomitrietosum lanuginosi hung among rocks.

Źródło:

Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 95.

Tytuł:

Thirteen years on the hunt for Buxbaumia viridis in the Czech Republic: still on the tip of the iceberg?

Autorzy:

Hola, E.
Vrba, J.
Linhartova, R.
Novozamska, E.
Zmrhalova, M.
Plasek, V.
Kucera, J.

Powiązania:

https://bibliotekanauki.pl/articles/56699.pdf

Data publikacji:

2014

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Buxbaumia viridis
moss
locality
bryophyte
threatened species
rare species
Czech Republic

Opis:

Rare epixylic moss Buxbaumia viridis, which is one of the “Annex II” species of the European “Habitat directive”, has been recorded at 124 localities in the Czech Republic in course of the last 13 years. Most of them were discovered in the last five years following a dedicated search at both historical sites of occurrence and new localities with putatively suitable habitat conditions. The recent and historical area of occupancy and extent of occurrence are not obviously different, although most of the recent localities are concentrated in the Western Carpathians and the Hrubý Jeseník Mts. Surprisingly, only 38% of the localities are located in natural forest habitats, of which herb-rich and acidophilous beech forests were among the most commonly inhabited ones. The rest of occurrences were recorded in non-natural forests (habitats strongly influenced or created by man), particularly the coniferous forest plantations. Sufficient amount of decaying wood of the advanced decay stages, as well as sufficient and constant humidity are crucial prerequisites for the occurrence of B. viridis in both types of forests. True epixylic moss Herzogiella seligeri and the liverwort Chiloscyphus profundus were recorded as the most common associated species, while the rest of commonly co-occurring species were facultatively epixylic, ground or ubiquitous bryophytes; other specialized and rare epixylic mosses or liverworts were only rarely recorded. We also designed a potential distribution model for B. viridis based on the distribution of habitats most commonly occupied by the studied moss. Despite the simplicity of the model, its close match with the recent distribution in the Western Carpathians, the Hrubý Jeseník Mts. and Šumava Mts. supports its relevance for the real distribution of B. viridis.

Źródło:

Acta Societatis Botanicorum Poloniae; 2014, 83, 2
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 96.

Tytuł:

Valences and site characteristics of iron in radioactive magmatic veins (Egypt): A Mössbauer and chemical study

Autorzy:

Hassan, K. M.

Powiązania:

https://bibliotekanauki.pl/articles/2086544.pdf

Data publikacji:

2010

Wydawca:

Polskie Towarzystwo Mineralogiczne

Tematy:

Egypt
Mössbauer
peralkaline rocks
aegirine-augite
Fe-oxide phases
radioactive/rare metals

Opis:

Radioactive veins in shear zones of the El-Seboah granite in Egypt with anomalous concentrations of Nd, Ce, Zr, Y, Nb, Sm, Th and U were studied by petrographic microscopy, x-ray diffraction, 57Fe Mössbauer and wet chemical methods. The veins are composed essentially of quartz, aegirine-augite and minor K-feldspar ± α-iron oxide (hematite) ± γ-iron oxide hydroxide (goethite). They likely represent late-stage felsic melt that was quenched and devitrified at high temperature to yield crystals and crystallites, and then subjected to low temperature alteration during which most of the K feldspar transformed to kaolinite and opal. Mössbauer parameters of the samples indicate that the existing Fe-bearing minerals are primary, with appreciable ordering in the Fe sites. The bulk-sample iron (ΣFe) contents are extremely high (12.3-22.4%). The extent of oxidation of the Fe has been found to be 100% by Mössbauer spectroscopy and 95.36-99.69% by a chemical method. These conditions of Fe enrichment and strong oxidation suggest that the veins are extreme differentiates of granite magmas where high states of oxygen fugacity prevailed.

Źródło:

Mineralogia; 2010, 41, 1/2; 23--33
1899-8291
1899-8526

Pojawia się w:

Mineralogia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 97.

Tytuł:

Adsorption of rare earth metal ions on novel tripodal broom methylcarbamoylmethoxy-acetic acid impregnated resin

Autorzy:

Ohto, K.
Oshima, T.
Inoue, K.

Powiązania:

https://bibliotekanauki.pl/articles/346895.pdf

Data publikacji:

2006

Wydawca:

Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej

Tematy:

tripodal broom compound
impregnated resin
adsorption
rare earth metals
methylcarbamoylmethoxy-acetic acid

Opis:

The novel broom methylcarbamoylmethoxy-acetic acid impregnated resin has been prepared to investigate the adsorption behavior of nine rare earth metals. The present resin demonstrates adsorption ability for rare earth metal ions. The selectivity order for rare earth series is as follows: Ho>Er>Gd>Y>Eu> Sm>>Nd>Pr>>La. This order is different from those of general carboxylic acid extractants. Maximum adsorption capacity of holmium is found to be 0.21 mol kg-1. From the comparison of the reagent amount impregnated in the resin and the maximum adsorption capacity, the adsorption stoichiometry is found to be 1:2 (Ho : reagent).

Źródło:

Ars Separatoria Acta; 2006, 4; 27-36
1731-6340

Pojawia się w:

Ars Separatoria Acta

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 98.

Tytuł:

Structural and Mössbauer effect studies of Dy(Fe0.4Co0.6-x Alx)2 intermetallics

Autorzy:

Stoch, P.
Pszczoła, J.
Suwalski, J.
Pańta, A.

Powiązania:

https://bibliotekanauki.pl/articles/148809.pdf

Data publikacji:

2003

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

crystal structure
hyperfine interactions
Mössbauer spectroscopy
rare earth
Slater-Pauling curve
transition

Opis:

The magnetic hyperfine fields observed at the 57Fe nuclei (77 K) in the Dy(Mn1-xFex)2 and Dy(Fe1-xCox)2 intermetallics form a Slater-Pauling curve. In order to study the effect of cobalt atoms on crystal structure and hyperfine interactions, the new Co/Al substituted series Dy(Fe0.4Co0.6-xAlx)2 was prepared and data of X-ray powder analysis are presented (300 K). From the 57Fe Mössbauer measurements at 77 K the hyperfine parameters were obtained. The magnetic hyperfine fields form a branch of the Slater-Pauling curve.

Źródło:

Nukleonika; 2003, 48,suppl.1; 75-77
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 99.

Tytuł:

Laricifomes officinalis in the Gorce Mountains (S Poland)
Laricifomes officinalis w Gorcach (Pd. Polska)

Autorzy:

Wojewoda, W.

Powiązania:

https://bibliotekanauki.pl/articles/67235.pdf

Data publikacji:

2010

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Laricifomes officinalis
Gorce Mountains
Polska
rare species
threatened species
distribution
fungi
conservation

Opis:

Information about second finding of Laricifomes officinalis (Batsch) Kotl. & Pouzar (Fomitopsidaceae) in the Gorce Mountains in the External Western Carpathians is given, and its legitimate and illegitimate selected synonyms are cited. This species in Poland is very rare and threatened.
We wrześniu 1955 roku A. Skirgiełło zorganizowała wycieczkę mikologiczną w Karpaty, do Krościenka nad Dunajcem. Uczestnicy: A. Skirgiełło, B. Gumińska, A. Nespiak i M. Lisiewska (Skirgiełło 1959, 2006) zbierali grzyby w trzech regionach fizyczno-geograficznych: w Beskidzie Sądeckim, Gorcach i Pieninach. Dla okazu L. officinalis znajdującego się w Zielniku Zakładu Systematyki i Geografii Roślin Instytutu Botaniki Uniwersytetu Warszawskiego jako stanowisko podane jest „Krościenko” ale Skirgiełlo (1959) informuje, że przeważającą liczbę Polyporaceae zebrano na zboczu „wzniesienia nad Zakrętkami”. Wymienione „wzniesienie” to góra Marszałek w Gorcach, leżąca ponad Krościenkiem nad Dunajcem. Uczestnicy wycieczki zbierali grzyby także na szczycie tej góry. W 1970 r. autor zebrał L. officinalis pod szczytem Marszałka, być może na tym samym stanowisku, na którym gatunek ten znalazła A. Skirgiełlo w 1955 r. W. Wojewoda zebrał okazy tego gatunku 40 lat temu. Nie wiadomo czy stanowisko to się zachowało. Konieczne jest poszukiwanie na Marszałku tego bardzo rzadkiego i zagrożonego w Polsce grzyba. Gatunek ten w ostatnich latach wymieniany był w publikacjach pod nazwą Fomitopsis officinalis (Vill.) Bondartsev & Sing. Obecnie obowiązuje uprawniona nazwa Laricifomes officinalis (Batsch) Kotl. & Pouzar (MycoBank 2009).

Źródło:

Acta Mycologica; 2010, 45, 2
0001-625X
2353-074X

Pojawia się w:

Acta Mycologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 100.

Tytuł:

Direct reuse of rare earth oxalate precipitation mother liquor for rare earth leaching

Autorzy:

Wu, Xiaoyan
Zhou, Fang
Feng, Jian
Liu, Xueme
Zhang, Zhenyue
Chi, Ruan

Powiązania:

https://bibliotekanauki.pl/articles/109869.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

weathered crust elution-deposited rare earth ore
oxalic acid
precipitation
mother liquor

Opis:

In the recovery process of rare earth (RE) from the weathered crust elution-deposited rare earth ore, ammonium sulfate is used as the leaching liquor to leach RE, and then the leachate containing RE3+ can be precipitated by oxalic acid and the RE oxalate precipitation mother liquor is reused for RE leaching process after removing the residual oxalic acid by precipitation with calcium hydroxide. However, the reuse process of precipitation mother liquor cannot proceed in the strong acid and alkali restricted areas and the discharge of mother liquor which contains a large amount of ammonium salt will cause ammonia-nitrogen waste and pollution. In order to realize the reuse of the precipitation mother liquor in this area, the direct reuse of RE oxalate precipitation mother liquor for RE leaching was investigated in this study. The RE oxalate precipitation process and the RE leaching process with oxalic acid were studied. The results showed that the residual oxalic acid concentration in the mother liquor can be controlled lower than 0.8 g/dm3 at pH 2-3 when the RE concentration in the leachate was 0.1- 1.5 g/dm3 and the RE precipitation rate reached to 94%. In addition, RE leaching efficiency was up to 90% while the oxalic acid concentration in the prepared mother liquor was 0.2-0.8 g/dm3, pH 2-3. Therefore, the precipitation mother liquor with oxalic acid concentration less than 0.8 g/dm3 could be directly reused for RE leaching. However, considering the different performance of RE ores, the recommended oxalic acid concentration in the direct used precipitation mother liquor was lower than 0.6 g/dm3.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 3; 760-769
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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