Skocz do pozycji: 1.

Tytuł:

Modes of \((\alpha)\)-convergence of sequences of functions

Autorzy:

Athanassiadou, E.
Boccuto, A.
Papanastassiou, N.

Powiązania:

https://bibliotekanauki.pl/articles/746661.pdf

Data publikacji:

2013

Wydawca:

Polskie Towarzystwo Matematyczne

Tematy:

sympathetic convergence, fine convergence, sympathetic-\(\alpha\)-convergence, fine-\(\alpha\)-convergence

Opis:

In this paper we deal with continuous convergence and some related properties of sequences of functions. We present some conditions to get uniform convergence of the sequence involved to a constant function. As an application, we give a result on equivalence between modes of convergence.

Źródło:

Commentationes Mathematicae; 2013, 53, 1
0373-8299

Pojawia się w:

Commentationes Mathematicae

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:

Using of Adhesives and Binders for Agglomeration of Particle Waste Resources

Autorzy:

Alsaqoor, Sameh
Borowski, Gabriel
Alahmer, Ali
Beithou, Nabil

Powiązania:

https://bibliotekanauki.pl/articles/2201761.pdf

Data publikacji:

2022

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

adhesives
binders
waste
fine coal
fine-grained iron
fly ash

Opis:

This review presents the usage of adhesives and binders for agglomeration of particle materials, including waste, in order to obtain strong bodies. The binding materials were classified into three categories: inorganic binders, organic binders, and compound binders. Many examples of the agglomeration effect of binders in view of their adhesive and thickening reveal that they have a significant impact on the qualities and use of waste lumps. Binders for fine waste granulation, briquetting, and pelletizing were demonstrated in-depth. In all cases, the mechanical strength of the agglomerates produced was increased. It was observed that the majority of the additives may be easily obtained from waste resources, posing a minimal environmental risk.

Źródło:

Advances in Science and Technology. Research Journal; 2022, 16, 3; 124--135
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Zasada szczególnego dostrojenia w kontekście układów z chaosem deterministycznym
The fine tunning principle in the context of systems with deterministic chaos

Autorzy:

Brus, Bartłomiej
Szydłowski, Marek

Powiązania:

https://bibliotekanauki.pl/articles/690542.pdf

Data publikacji:

2008

Wydawca:

Copernicus Center Press

Tematy:

deterministic chaos
fine tunning

Opis:

From the beginning of the deterministic chaos research, the unpredictability has been its central theme. Interesting questions arise here: What are the consequences of chaos for the fine tuned processes? Are there fine tuning systems in reality? We investigate the possibility of defining a fine tuning parameter in terms of the Lyapunov principal exponent. We will critically evaluate the existing formulation of Hetesi and Vegh. We argue that such a quantification of a fine tuning parameter may be useful in the context of the debate between indifference and fine tuning principles for the Universe. We also propose how to define fine tuning evolutional paths of the Universe by using concepts of dynamical systems, namely the method of separatrices in the phase space.

Źródło:

Zagadnienia Filozoficzne w Nauce; 2008, 43; 103-140
0867-8286
2451-0602

Pojawia się w:

Zagadnienia Filozoficzne w Nauce

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Fine-needle versus core-needle biopsy – which one to choose in preoperative assessment of focal lesions in the breasts? Literature review
Biopsja celowana cienkoigłowa i biopsja gruboigłowa – którą wybrać w przedoperacyjnej ocenie zmian ogniskowych w piersiach? Przegląd piśmiennictwa

Autorzy:

Łukasiewicz, Ewa
Ziemiecka, Agnieszka
Jakubowski, Wiesław
Vojinovic, Jelena

Powiązania:

https://bibliotekanauki.pl/articles/1033316.pdf

Data publikacji:

2017

Wydawca:

Medical Communications

Tematy:

fine-needle aspiration biopsy

Opis:

Aim: The aim of the study was to review two techniques that can be used to verify focal lesions in the breasts: fine-needle aspiration biopsy and core-needle biopsy. Material and methods: Fifty-five articles (original papers and reviews), half of them published within the past 5 years, were included in the analysis. The authors also took their own experience into account. Results: Pre-operative assessment of focal lesions in the breasts is crucial in the planning of further therapeutic management. The role of fine-needle aspiration biopsy has been reduced lately due to its low sensitivity and specificity as well as a high rate of non-diagnostic, suspicious and false negative results. This method does not enable one to differentiate between in situ and invasive disease. Currently, fine-needle biopsy is recommended for cystic lesions, suspected of being recurrences in the chest wall, and lymph node metastases. Core-needle biopsy is the basic diagnostic method of breast lesions. According to the recommendations of the Polish Ultrasound Society and American College of Radiology, BIRADS 4 and 5 lesions should be evaluated histopathologically. Core-needle biopsy makes it possible to establish a final diagnosis more frequently than fine-needle biopsy, both in the case of benign and malignant lesions. It delivers more information about the nature of a tumor (mutation of HER-2, estrogen and progesterone receptors and Ki-67 index). Its limitations include: underestimation of invasion and failure to recognize the components of ductal carcinoma in situ in papillary and atypical lesions. Single fine-needle aspiration biopsy is inexpensive, but when considering the cost of further diagnosis due to non-diagnostic, suspicious and atypical results, this method generates high additional costs. Conclusions: Microscopic verification of focal breast lesions is crucial for further therapeutic decisions. It has been proven that histopathological verification is more accurate and has more advantages than cytological assessment.
Cel pracy: Celem pracy było przedstawienie dwóch technik weryfikacji zmian ogniskowych w piersiach: biopsji aspiracyjnej celowanej cienkoigłowej i biopsji gruboigłowej. Materiał i metody: Analizie poddano 55 artykułów (prac oryginalnych i przeglądowych), z których prawie połowa została opublikowana w ciągu ostatnich 5 lat. Autorzy uwzględnili również własne doświadczenia. Wyniki: Przedoperacyjna ocena zmian ogniskowych w piersiach jest niezbędna w planowaniu postępowania terapeutycznego. W ostatnim czasie rola biopsji aspiracyjnej cienkoigłowej celowanej uległa zmniejszeniu ze względu na niską czułość i swoistość, jak również wysoki odsetek wyników niediagnostycznych, podejrzanych i fałszywie ujemnych. Metoda ta nie pozwala na różnicowanie pomiędzy nowotworem in situ a inwazyjnym. Obecnie biopsja cienkoigłowa jest rekomendowana w przypadku zmian płynowych, podejrzanych o wznowę w ścianie klatki piersiowej oraz przerzutów do węzłów chłonnych. Biopsja gruboigłowa jest podstawową metodą diagnostyczną zmian w piersiach. Zgodnie z zaleceniami Polskiego Towarzystwa Ultrasonograficznego i American College of Radiology zmiany kategorii 4 i 5 według klasyfikacji BIRADS powinny zostać poddane weryfikacji histopatologicznej. Biopsja gruboigłowa pozwala na postawienie ostatecznej diagnozy częściej niż biopsja cienkoigłowa zarówno w przypadku zmian łagodnych, jak i złośliwych; dostarcza więcej informacji o charakterze guza (obecność mutacji HER-2, receptorów progesteronowych i estrogenowych oraz wskaźnika Ki-67). Do jej ograniczeń zalicza się niedoszacowanie inwazji oraz nierozpoznawanie komponentów raka przewodowego in situ w zmianach brodawkowatych i atypowych. Cena pojedynczej biopsji aspiracyjnej celowanej cienkoigłowej jest niewielka, jednak po uwzględnieniu kosztów dalszej diagnostyki wyników niediagnostycznych, podejrzanych i atypowych metoda ta generuje wysokie koszty dodatkowe. Wnioski: Weryfikacja mikroskopowa zmian ogniskowych w piersiach jest kluczowa w podejmowaniu dalszych decyzji terapeutycznych. Udowodniono, że weryfikacja histopatologiczna jest dokładniejsza i ma więcej zalet niż ocena cytologiczna. Artykuł w wersji polskojęzycznej jest dostępny na stronie http://jultrason.pl/index.php/issues/volume-17-no-71

Źródło:

Journal of Ultrasonography; 2017, 17, 71; 267-274
2451-070X

Pojawia się w:

Journal of Ultrasonography

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Administracyjne kary pieniężne
Administrative Fine

Autorzy:

Fleszer, Dorota

Powiązania:

https://bibliotekanauki.pl/articles/3200871.pdf

Data publikacji:

2022-07-04

Wydawca:

Wyższa Szkoła Humanitas

Tematy:

administracyjna kara pieniężna
kara grzywny
sankcja administracyjna
administrative fine
fine
administrative sanction

Opis:

Wyraźnie zauważalne jest, że ustawodawca dla podniesienia efektywności tworzonych przez siebie regulacji prawnych z zakresu prawa administracyjnego sięga po sankcje, mające postać administracyjnych kar pieniężnych. Nakładane są one w razie niewykonania lub nienależytego wykonania obowiązków wynikających z konkretnego przepisu prawnego przez ich adresata. Mając jednak na uwadze to, że w procedurze ich nakładania nie są stosowane środki ochrony, w przeciwieństwie do kar wymierzanych w prawie karnym, do możliwości nakładania kar pieniężnych powinno się podchodzić się z większą ostrożnością. Zwłaszcza że szczególnie wykorzystywany jest ich represyjne oddziaływanie.
It is clearly noticeable that the legislator, in order to increase the effectiveness of legal regulations in the field of administrative law created thereby, reaches for sanctions in the form of administrative fines. They shall be imposed in the event of non-performance or improper performance by the addressee of obligations under a specific legal provision. However, bearing in mind that there are no protective measures in the procedure for their imposition, unlike penalties under criminal law, the possibility of imposing fines should be treated with greater caution. Their repressive impact is particularly exploited.

Źródło:

Roczniki Administracji i Prawa; 2022, 1(XXII); 89-100
1644-9126

Pojawia się w:

Roczniki Administracji i Prawa

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Application of the minirhizotron technique to studying the roots of fruit plants

Autorzy:

Głuszek, S
Sas Paszt, L
Sumorok, B.
Derkowska, E
Kozera, R.

Powiązania:

https://bibliotekanauki.pl/articles/102243.pdf

Data publikacji:

2013

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

minirhizotron
fine roots
pomological plants

Opis:

Minirhizotron, a non-destructive technique is based on the application of transparent tubes, located in plant’s root zone. This method has been known since the beginning of 20th century and is used for plant root’s observations, especially in forest trees (Scots pine, Norway spruce, silver fir, birch), steppe grasses, vegetables and cereals. Minirhizotron technique is also applicable to pomological plants observations, mostly apples, but many others orchard species were observed with this method last years. The study of root growth dynamics in fruit plants using the non-destructive, minirhizotron method is conducted in the Pomological Orchard in Skierniewice. The objects of the observations are the roots of: apple trees cultivar. ‘Gold Milenium’, blackcurrant bushes cultivar ‘Tiben’ and sweet cherry cultivar ‘Vanda’. The observations were carried out monthly over a period of from March to November.

Źródło:

Advances in Science and Technology. Research Journal; 2013, 7, 18; 45-53
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Characteristics of cationic red x-grl adsorption by raw diatomite and diatomite concentrate

Autorzy:

Ren, Z.
Guan, J.
Gao, H.
Tian, J.
Wen, Y.
Zheng, R.

Powiązania:

https://bibliotekanauki.pl/articles/110723.pdf

Data publikacji:

2016

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

diatomite
dye
adsorption
fine particles

Opis:

Raw diatomite (RD) and diatomite concentrate (DC) were used for the adsorption of cationic Red X-GRL from aqueous solutions. Mono-factor experiments were carried out to investigate the effects of the operation factor, and adsorption kinetics, isotherms, thermodynamics and mechanisms were explored. Similar trend for X-GRL adsorption onto RD and DC was observed. The adsorption capacity of dyes increased slightly with temperature, and the neutral pH was the optimum level. The adsorption processes occurred in accordance with the pseudo second-order model and were well fitted by the Langmuir isotherm model. The main driving forces of the physical adsorption on the diatomite were electrostatic attraction and van der Waals force. The RD could uptake more X-GRL than DC due to its higher content of fine particle and therefore, due to higher surface area available for adsorption. Raw diatomite as a cheap absorbent for X-GRL removal can be suggested as a promising supplement to activated carbon.

Źródło:

Physicochemical Problems of Mineral Processing; 2016, 52, 1; 44-55
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Correlation of Fine Needle Aspiration Cytology of Thyroid Gland with Histopathological Results

Autorzy:

Machała, Ewa
Sopiński, Jan
Iavorska, Iulia
Kołomecki, Krzysztof

Powiązania:

https://bibliotekanauki.pl/articles/1392909.pdf

Data publikacji:

2018

Wydawca:

Index Copernicus International

Tematy:

fine needle aspiration biopsy
fine needle aspiration cytology
thyroid cancer
papillary thyroid cancer
throidectomy

Opis:

Fine needle aspiration cytology (FNAC) is considered as the gold-standard diagnostic test in the diagnostics of thyroid nodules. It is a cost-effective procedure that provides specific diagnosis rapidly with minimal complications. It plays an important role in the determination of treatment - patients with suspected malignancy diagnosis can be subjected to surgery. On the other hand, it can decrease the rate of unnecessary surgeries. Aim: The aim of this study was to evaluate and compare the correlation, accuracy of fine needle aspiration cytology (FNAC) in the diagnostics of thyroid lesions with the final histopathologic diagnosis based on the surgical specimens. Materials and Methods: In our study we performed a retrospective analysis of a case series of patients who had been admitted to the Department of Endocrine, General and Oncological Surgery of the Hospital of M. Kopernik in Łodź (Poland) between May 2016 and December 2017 and underwent FNAC with subsequent surgery. Cytological diagnosis was classified into six Bethesda categories. Results: On cytological examination, 1070/1262 cases were reported as benign, 49 as malignant and 143 as suspicious. On histopathological examination, 956/1070 cases were confirmed as benign but there were 114 discordant cases. Among the other cases histopathology diagnosis confirmed malignancy in 45/49 cases and 128/143 suspicious cases. The sensitivity and specificity were 60,28% and 98,05% respectively. False positive rate was 1.95% and false negative rate was 39.72%. The positive predictive value was 90.1% and negative predictive value was 89.35%. Accuracy of FNA in differentiating benign from malignant thyroid lesions was 89.46%.

Źródło:

Polish Journal of Surgery; 2018, 90, 6; 13-19
0032-373X
2299-2847

Pojawia się w:

Polish Journal of Surgery

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Effects of Hand Posture, Breathing Type, Arm Posture and Body Posture on Hand Errors

Autorzy:

Lee, T. H.
Cheng, T. S.

Powiązania:

https://bibliotekanauki.pl/articles/90970.pdf

Data publikacji:

2012

Wydawca:

Centralny Instytut Ochrony Pracy

Tematy:

aiming
fine manipulation
hand tremor
pointing

Opis:

This study consisted of 2 experiments. Experiment 1 examined the effects of hand posture, arm posture and body posture on hand error, while experiment 2 examined the effects of hand posture, breathing type and body posture on hand error. This study showed that more hand errors occurred in the nondominant hand, extended arm, normal breathing and standing compared with errors in the dominant hand, flexed arm, inspire–hold and sitting, respectively. This study advised people to use their dominant hand, flex their arm, inspire and hold the breath and support their body while performing fine manipulation tasks. Finally, hand error varied dramatically across the participants, indicating the need to screen individuals for fine manual manipulation tasks.

Źródło:

International Journal of Occupational Safety and Ergonomics; 2012, 18, 3; 393-398
1080-3548

Pojawia się w:

International Journal of Occupational Safety and Ergonomics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

La toile et le voile : l’art, la littérature et le sacré dans trois récits romantiques
The Canvas and the Veil: Art, Literature and the Sacred in Three Romantic Narratives

Autorzy:

Pinon, Esther

Powiązania:

https://bibliotekanauki.pl/articles/483470.pdf

Data publikacji:

2013

Wydawca:

Katolicki Uniwersytet Lubelski Jana Pawła II. Wydawnictwo Werset

Tematy:

Romanticism
sacred
fine arts
novel
short story

Opis:

The literature of the Romantics, in the first part of the 19th century, is steeped in religious doubt. Moreover, the sacred was a taboo yet unavoidable subject especially in novels and short stories that were considered at the time profane genres. Romantic writers exploited certain covert strategies in order to speak of the unspeak-able and touch the untouchable. They resort, for instance, to their artistic culture with its centuries of pictorial tradition that render religious figures and events more familiar and accessible. Musset’s Le Tableau d’église, Vigny’s Daphné, and Gauthier’s La Toison d’or, all bear witness to a striking (meeting) harmony between iconoclastic and/or cavalier characters and sacred works of art that focus on the Passion. All three writers interweave aesthetic contemplation with mystical communion, thus revealing a new sense of the sacred that is often ambiguous, nay, subversive. And since sacred art is not in itself sacred, it allows writers to come very close to sacrilege in order to examine the fine line between the profane and the sacred.

Źródło:

Quêtes littéraires; 2013, 3; 58-65
2084-8099
2657-487X

Pojawia się w:

Quêtes littéraires

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Effect of two-stage stirred pulp-mixing on coal flotation

Autorzy:

Gui, X.
Wang, Y.
Zhang, H.
Li, S.

Powiązania:

https://bibliotekanauki.pl/articles/110764.pdf

Data publikacji:

2014

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

mixing
stirred
two stage
fine coal
flotation

Opis:

Stirred pulp-mixing is performed before coal flotation. In this study, a two-stage stirred pulpmixing tank was designed based on the single-stirred process to intensify the mixing effect of pulp and flotation reagents. A tank has a pitched-impeller opening-type turbine. Stirred pulp-mixing and flotation experiments were conducted on a sample of anthracite fine coal (-0.5mm) from the Xuehu Coal Preparation Plant in Henan Province, China. The results of the two-stage stirred pulp-mixing were compared with those of a single-stage stirred pulp-mixing in terms of flotation performance. Compared with the single-stage stirred pulp-mixing, two mixing areas and double-layer impeller were able to strengthen the energy input to the stirred system, thereby improving the mixing efficiency of flotation reagents and coal particles in the pulp. The two-stage stirred pulp-mixing significantly increased the flotation feed rate of the cyclone-static micro-bubble flotation column and concentrate yield, enhanced the combustible matter recovery effect of coarse particles at a suitable flotation feed rate, and ensured the recovery effect of fine particles at high flotation feed rate.

Źródło:

Physicochemical Problems of Mineral Processing; 2014, 50, 1; 299-310
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Response to Erickson-Gini’s "Problems and solutions in dating Nabataean pottery in the post-annexation period"

Autorzy:

Wenner, Sarah
Parker, S. Thomas

Powiązania:

https://bibliotekanauki.pl/articles/2033331.pdf

Data publikacji:

2021-12-31

Wydawca:

Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego

Tematy:

pottery
Nabataean chronology
Nabataean Painted
Fine Ware

Opis:

In the late 1990s, Stephan G. Schmid published a chronological typology of Nabataean Painted Fineware (NPFW) that was widely accepted by scholars of Nabataea and Roman Arabia. Tali Erickson-Gini has since raised concerns about parts of his NPFW typology, specifically related to two decoration types dating to the end of the 1st century and the beginning of the 2nd century CE (Dekorphases 3b and 3c). This article is a response to Erickson-Gini’s critique, published in this volume. We find that there is sufficient evidence to broadly validate Schmid’s proposed dating for the beginning of production of Dekorphases 3b and 3c to the late 1st century and early 2nd century CE, respectively.

Źródło:

Polish Archaeology in the Mediterranean; 2021, 30(2); 707-736
1234-5415

Pojawia się w:

Polish Archaeology in the Mediterranean

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Audio Description in Fine Arts

Autorzy:

Wendorff, Anna

Powiązania:

https://bibliotekanauki.pl/articles/579118.pdf

Data publikacji:

2017

Wydawca:

Łódzkie Towarzystwo Naukowe

Tematy:

audio description
fine arts
translation
multisensory
Lodz

Opis:

This article is about audio description of works of art. The term audio description is defined at the beginning of the text, next there is a description of how AD began in the United States and in Poland. After that, the types of AD in works of art and the rules of its creating are presented. The following paragraphs are about translating paintings through the senses, that is the hearing (ekphrasis, soundpainting), the touch (miniature models, typhlographies, touch tours) the smell or the taste (specially prepared fragrance or taste composition). The article finishes with the author looking at AD in plastic arts in Muzeum Sztuki in Łódź and the Museum of the City of Łódź.

Źródło:

Zagadnienia Rodzajów Literackich; 2017, 60, 3 (123); 83-94
0084-4446

Pojawia się w:

Zagadnienia Rodzajów Literackich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Przesiewanie drobnoziarnowe i maszyny przesiewające
Fine screening and screens

Autorzy:

Wodziński, P.

Powiązania:

https://bibliotekanauki.pl/articles/318799.pdf

Data publikacji:

2001

Wydawca:

Polskie Towarzystwo Przeróbki Kopalin

Tematy:

przesiewanie drobnoziarnowe
maszyny przesiewające
fine screening
screens

Opis:

Niniejsza praca jest poświęcona pewnym zagadnieniom związanym z przesiewaniem drobno- i bardzo drobnouziarnionych materiałów sypkich. Jest to najtrudniejszy proces przesiewania (obok odsiewania materiałów wilgotnych), który w praktyce przemysłowej nie doczekał się jednoznacznego rozwiązania. O ile w przemyśle światowym rozpowszechnione są typowe przesiewacze jednopłaszczyznowe (zwane niezbyt precyzyjnie przesiewaczami wibracyjnymi) oraz znane są właściwości procesowe tych maszyn, o tyle do przesiewania drobnoziarnowego stosuje sie różne maszyny przesiewające, które nie zawsze sprawdzają się w warunkach przemysłowych. Artykuł niniejszy jest dyskusyjny, stanowi on przyczynek do nieco innego niż dotychczas, spojrzenia na proces przesiewania. Zawiera ponadto pewne uwagi praktyczne, spełnienie których jest ważne dla procesu przesiewania drobnoziarnowego. Druga część artykułu poświęcona jest maszynom przesiewającym opracowanym przez autora. Są to rozwiązania stworzone głównie z myślą o odsiewaniu materiałów drobnych. W tej części omówiono ważność prawidłowego zasilania przesiewaczy nadawą (materiałem przeznaczonym do przesiewania). Szczególną uwagę zwraca się również na napędy (głównie rotacyjne - wały niewyważone), od których w istotnym stopniu zależny jest efekt procesowy.
This paper is dedicated to some problems of screening of fine- and very fine-grained loose materials. This is the most difficult screening process (beside screening off wet materials), which in industrial practice has not been solved yet. As far as in the world industry typical single-plane screens are very popular (they are named, not very precisely, the vibrating screens) with known process properties, for screening of fine-grained material various screens are used which prove not always the most efficient in industrial conditions. The present paper is debatable, and can be treated as a contribution to a slightly different approach to screening than that represented so far. Additionally, it presents some practical recommendations which are important for fine screening process. Second part of the paper is dedicated to screening machines developed by the author. These are design solutions proposed mainly for screening of fine-grained materials. In this section the importance of correct feed supply to the screen is discussed. Special attention is given to drives - mainly rotational (unbalanced shafts), on which the process efficiency depends greatly.

Źródło:

Inżynieria Mineralna; 2001, R. 2, nr 1, 1; 41-57
1640-4920

Pojawia się w:

Inżynieria Mineralna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Experimental investigations of preparation of calcite particles by ultrasonic treatment

Autorzy:

Toraman, O. Y.

Powiązania:

https://bibliotekanauki.pl/articles/110407.pdf

Data publikacji:

2017

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

calcite
fine particles
ultrasonic treatment
product size

Opis:

This paper investigates breakage of calcite powder (d50 = 25.23 μm) to fine particle sizes using an ultrasonic generator (400 W, 24 kHz). The present study focuses on comminution of calcite powder in water media by ultrasonic treatment and the effect of some operational parameters such as treatment time (5–30 min), ultrasonic power (30-100% as amplitude), solid ratio (5-30% w/w), probe positions (0.5-2 cm) and cycle on the product size. Experimental results were evaluated on the basis of average particle size (d50). Sonication of calcite produced a drastic particle-size reduction (d50=12.89 μm) under optimal conditions.

Źródło:

Physicochemical Problems of Mineral Processing; 2017, 53, 2; 859-868
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

The Use of Granulation to Reduce Dusting and Manage of Fine Coal

Autorzy:

Ozga, M.
Borowski, G.

Powiązania:

https://bibliotekanauki.pl/articles/125398.pdf

Data publikacji:

2018

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

granulation
fine coal
dusting
management
solid fuels

Opis:

The development of mining and processing industries is accompanied by the formation of fine-grained waste materials that must undergo the treatment. Sometimes, grinding materials is a prerequisite for further processing. The issues of coal dust and fine coal granulation conducted to obtain homogeneous and persistent pieces for application in various branches of industry were presented. The article describes the binders and additives were applied in order to change the properties of the granules. The key factors affecting the process of fine-grained coal granulation is discussed. Granulated coal dust is most useful as an alternative fuel for combustion in industrial and household heating systems. However, carbon fuel requires a systematic control of the mechanical strength and resistance to external factors.

Źródło:

Journal of Ecological Engineering; 2018, 19, 3; 218-224
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

Metastatic lymphadenomegaly in dogs– cytological study

Autorzy:

Czopowicz, M.
Sapierzyński, R.
Jagielski, D.

Powiązania:

https://bibliotekanauki.pl/articles/2087873.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

cytology
dog
fine-needle biopsy
metastatic lymphadenomegaly

Źródło:

Polish Journal of Veterinary Sciences; 2017, 4; 731-736
1505-1773

Pojawia się w:

Polish Journal of Veterinary Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

The Influence of Women on the Content and System of Art Education

Autorzy:

Gržinić, Marina

Powiązania:

https://bibliotekanauki.pl/articles/24531659.pdf

Data publikacji:

2023

Wydawca:

Akademia Sztuk Pięknych w Gdańsku

Tematy:

Academy of Fine Arts Vienna
Influence of Women
System of Art Education
Women at the Academies of Fine Arts

Źródło:

Sztuka i Dokumentacja; 2023, 29; 73-83
2080-413X

Pojawia się w:

Sztuka i Dokumentacja

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

DEFINICJA POJĘCIA „DZIEŁO SZTUKI” I JEJ PRZYDATNOŚĆ W STOSUNKACH UBEZPIECZENIOWYCH

Autorzy:

Górecki, Piotr

Powiązania:

https://bibliotekanauki.pl/articles/664338.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie

Tematy:

insurance
fine art
art
property insurance
fine art’s insurance
ubezpieczenia
dzieła sztuki
sztuka
ubezpieczenia majątkowe
ubezpieczenia dzieł sztuki

Opis:

The article analyses the definition of “an item of fine art” and its practical application in the spectrum of insurance relationships. The definition is considered from a general point of view as well as from the legal perspective. It is also collated with synonymous concepts (i.e. antiquity, cultural property, exhibits) and briefly examined in different legal contexts (fiscal, administrative, international, civil). This review leads to a conclusion that it is impossible to find a satisfactory and generally applicable definition of “an item of fine art,” and that therefore searching for such a definition is a waste of time. On the other hand, attempts to define “an item of fine art” shed light on its classic features, which may be useful in certain cases.The article draws attention to the indirect impact of certain reflections and observations regarding “fine art,” notably their effect on the interpretation of the concept of “items of fine art” in civil law and civil contracts. It also shows that an accurate definition may be essential in an insurance relationship, since the subject of insurance protection has to be clearly defined. These practical implications apply particularly to situations when an item of fine art is not the sole object of insurance protection and when it is an element of an insured collection.The article considers not only the applicable legislation but also the general terms and conditions used by insurance companies.

Źródło:

Zeszyty Prawnicze; 2015, 15, 4
2353-8139

Pojawia się w:

Zeszyty Prawnicze

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Ecology and population dynamics of yeast starter cultures in cocoa beans fermentation

Autorzy:

García Gonzalez, Estefania
Mendez Orejuela, John H.
Sierra Banguera, Jhon S.
Chamorro Moreno, Daniela I.
Ordoñez Narvaez, Ginna A.
Ochoa Muñoz, Andrés F.
Montalvo Rodriguez, Constanza

Powiązania:

https://bibliotekanauki.pl/articles/16648147.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Tematy:

fermentation
cocoa
yeast
fine flavor cocoa
Saccharomyces
Hanseniaspora.

Opis:

This study aimed to investigate controlled fermentation of cocoa beans with selected yeasts as starter cultures via integrating microbiological, biochemical, and chromatographic analyses. The steps involved in the yeast starter culture test were of the following order: 1) counting, isolation, purification, and biochemical identification of yeasts, 2) selection of ethanol-producing yeasts, 3) selection of thermotolerant yeasts, and 4) evaluation of physicochemical parameters of the selected yeasts in controlled fermentation of cocoa (F1 - Saccharomyces ssp. and Hanseniaspora ssp. and F2 - spontaneous fermentation - control). A total of 32 yeasts were isolated from three sampling points (M1, M2, and M3), which comprised 50% Candida ssp., 9.4% Rhodotorula ssp., 18.8% Saccharomyces ssp., and 18.8% Hanseniaspora ssp. The yeasts identified as Saccharomyces ssp. (n = 6) were subjected to the ethanol production test. Saccharomyces spp. CLV09 showed the highest concentration of ethanol in the simulated cocoa medium (3.5% v/v). Hanseniaspora spp. CVL20 and CVL19 strains showed the highest thermotolerance at 42°C after 72 h of growth. The starter cultures with Saccharomyces ssp. and Hanseniaspora ssp. showed a similar growth rate of the mesophilic aerobic population in both F1 and F2. Fermentation of the starter culture showed a higher production of organic acids than spontaneous fermentation (F2). Thus, Saccharomyces ssp. and Hanseniaspora ssp. can be used as a starter culture in cocoa fermentation.

Źródło:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 4; 343-353
0860-7796

Pojawia się w:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Zagospodarowanie drobnoziarnistych odpadów ze wzbogacania węgla kamiennego
Disposal of fine tailings from hard coal beneficiation

Autorzy:

Lutyński, A.
Szpyrka, J.

Powiązania:

https://bibliotekanauki.pl/articles/349494.pdf

Data publikacji:

2010

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

węgiel kamienny
odpady drobnoziarniste
hard coal
fine tailings

Opis:

W artykule przedstawione zostały zagadnienia dotyczące drobnoziarnistych odpadów z procesu wzbogacania węgla kamiennego. Przedstawiono przykładowe wyniki badań drobnoziarnistych odpadów z trzech stawów osadowych mułów węgla energetycznego i jednego osadnika odpadów flotacyjnych węgla koksowego oraz ze zbiornika wodnego. Zaprezentowane wyniki badań pozwoliły na ocenę sposobu wykorzystania tych odpadów. W artykule przedstawiono również cel i założenia projektu rozwojowego pt.: "Identyfikacja potencjału energetycznego depozytów mułów węglowych w bilansie paliwowym kraju oraz strategia rozwoju technologicznego w zakresie ich wykorzystania" realizowanego przez Instytut Mechanizacji Budownictwa i Górnictwa Skalnego Oddział zamiejscowy :Centrum Gospodarki Odpadami" w Katowicach wraz z Katedrą Przeróbki Kopalin i Utylizacji Odpadów Politechniki Śląskiej.
In the article the issues related to fine tailings produced as a result of hard coal beneficiation process are presented. The amount of waste produced as a result of coal extraction, features of fine tailings and mineralogical-petrographic composition are given. Possible methods of fine tailings usage are also presented. Results of research of fine tailings from three coal slurry impoundments of energetic coal, one flotation tailings pond of cocking coal and one water pond are shown. Presented results allow to assess the possibility of tailings usage. It was demonstrated that coal slurries from energetic coal can be used as a fuel for fluidized bed combustion. The results of research show that it is possible to reprocess flotation tailings stored for a long time in a pond using again flotation methods. It is necessary however to choose the right froth agent and its proper concentration in a process. It was also demonstrated that tailings deposited in a water pond have properties that allow their energetic usage. The purpose and assumptions of a new development project "Identification of energetic potential of coal slurries deposits in national fuel balance and strategy of technological development in the range of their usage" carried out by Institute of Mechanized Construction and Rock Mining division "Centre of Waste Disposal" in Katowice in cooperation with Department of Mineral Processing and Waste Disposal of Silesian University of Technology are presented. The purpose of a Project is to assess the possibility of including existing coal slurries deposits into national fuel balance. A project is in accordance with 2006/21/WE Directive of European Parliament and Commision regarding the management of waste from extractive industries and Act from 10th of July 2008 (Dz.U. z 2008 r. Nr 138, poz.865) regarding extractive waste that transposes Directive 2006/21/WE into Polish regulations.

Źródło:

Górnictwo i Geoinżynieria; 2010, 34, 4/1; 155-164
1732-6702

Pojawia się w:

Górnictwo i Geoinżynieria

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

The Viennese influence on the artistic arrangement of Lviv public buildings interiors built in the second half of the nineteenth century

Autorzy:

Hetmanchuk, Serhiy

Powiązania:

https://bibliotekanauki.pl/articles/1403677.pdf

Data publikacji:

2021

Wydawca:

Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej

Tematy:

fine arts
historicism
artistic arrangement
public buildings
decoration

Opis:

The article identifies the main characteristics and features of the artistic arrangement of representative public buildings in Vienna that influenced analogical objects of Lviv in the second half of the 19th century. The issue of Vienna’s historicism and its peculiarities in interior decoration are also considered. The research involved selecting and analyzing key public buildings that are present in both cities, such as theaters, universities, the Diet (in case of Vienna – the Parliament), museums, courts and other sites with a broad representative group of rooms. These revealed common trends, direct and indirect quotations, both in artistic elements and in the overall order composition. The article also explores major public buildings in Vienna along with architects who have become role models and set some standards for the artistic design of the representative group of rooms. As a result, the influencing factors were identified, among which administrative, educational, cultural and economic issues are highlighted and reviewed.

Źródło:

Architecturae et Artibus; 2021, 13, 1; 1-9
2080-9638

Pojawia się w:

Architecturae et Artibus

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Hybrid atomization method suitable for production of fine spherical lead-free solder powder

Autorzy:

Minagawa, K.
Kakisawa, H.
Takamori, S.
Osawa, Y.
Halada, K.

Powiązania:

https://bibliotekanauki.pl/articles/146099.pdf

Data publikacji:

2006

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

ead-free solder
fine spherical powder
hybrid atomization

Opis:

In response to the problem of environmental protection, the electronic industry is studying the lead-free alloys as substitutes for lead-containing solder alloys. At the same time, with progress in electronic devices in recent years, smaller size and higher precision are strongly demanded in electronic board connections. Therefore, it is necessary to prepare fine powders of solder paste for these connections. To produce such lead-free solder balls, a novel powdermaking process, “hybrid atomization” that combines gas atomization and centrifugal atomization, was used. This technique produces very fine and spherical tin alloy powders with a mean diameter of about ten micrometers and very narrow size distribution with few satellites at low production cost. Taking a Sn-9mass%Zn alloy as an example, process experiments were carried out, and the effect of temperature, spray distance and disk rotating speed on the resultant powder properties were examined. The optimal processing conditions were determined from the results; the influences of the processing parameters on the properties of the obtained powders were quite different from those in the conventional atomization processes. The spherical powder with a mean diameter of 10.6 žm and a standard deviation of 1.3 ~ 1.7 was obtained in the determined optimum condition.

Źródło:

Nukleonika; 2006, 51,suppl.1; 83-88
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

A Description of Cochliopodium megatetrastylus n. sp. Isolated from a Freshwater Habitat

Autorzy:

Anderson, O. Roger
Tekle, Yonas I.

Powiązania:

https://bibliotekanauki.pl/articles/763483.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Amoebozoa, comparative morphology, fine structure, molecular genetics, taxonomy

Opis:

Cochliopodium megatetrastylus n. sp. is described based on light microscopy, fine structure and molecular genetic evidence. Amoebae are broadly oval to somewhat triangular during locomotion with average length of 37 μm and breadth of 50 μm, and surrounded by a hyaloplasm margin, somewhat narrow when at rest but more expanded during locomotion (~ 5–10 μm at the anterior). Sparsely occurring subpseudopodia, barely emergent from the hyaloplasm, are blunt and finger-like, occasionally becoming adhesive laterally or at the posterior. Cysts develop after 2–3 weeks in culture and are round with a distinct margin, decreasing in size from 20 to 5 μm during maturation. The granuloplasm contains refractile crystals. A vesicular nucleus (~ 6 μm), containing a nucleolus (2–3 μm), is variable in shape from somewhat lenticular in section to irregularly rounded with undulating or lobed margins. Surface scales (~ 0.3 μm in height) have an apical deeply concave funnel-like collar (~ 0.15 μm deep), without a spine, composed of radial fine rays and concentric filaments forming a finemesh, supported on four non-cross-linked styles (~ 0.2 μm apart) attached to a round to broadly angular base plate (0.6–1 μm) with a fine gridtexture. Cysts are rounded and enclosed by an organic wall bearing remnants of the scales on its outer surface. Both concatenated analysis of SSU-rDNA and COI genes and comparative morphologies support the designation of Cochliopodium megatetrastylus n. sp. as a new species.

Źródło:

Acta Protozoologica; 2013, 52, 2
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Test of the Nabataean Painted Fine Ware typology in Aila’s Area K

Autorzy:

Wenner, Sarah

Powiązania:

https://bibliotekanauki.pl/articles/2033326.pdf

Data publikacji:

2021-12-31

Wydawca:

Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego

Tematy:

Nabataean Painted Fine Ware
Nabataea
Petra
Aila
Jordan

Opis:

Although Nabataean Painted Fine Ware (NPFW) has been examined in light of Stephan Schmid’s chronological typology since the late 1990s, few stratified contexts with NPFW from outside Petra have been published, and none derived from contexts occupied continuously from the Nabataean through Byzantine periods. Questions remain about the dating of later dekorphases (3–4) due to a lack of contexts. This paucity is remedied, however, by Area K at Roman Aqaba/Aila, Jordan. Area K was a domestic complex, just inside the later Byzantine city wall, excavated from 1994 through 2002. Using associated numismatic evidence and imported fine wares (primarily Eastern Sigillata A and African Red Slip), this paper argues that NPFW Dekorphase 3b appeared at Aila in the second half of the 1st century CE, and Dekorphase 3c appeared shortly afterwards, around the time of the Roman annexation in the beginning of the 2nd century.

Źródło:

Polish Archaeology in the Mediterranean; 2021, 30(2); 595-610
1234-5415

Pojawia się w:

Polish Archaeology in the Mediterranean

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

The Joy of Creation. Teresa Sierant-Mikicicz’s Role in Building the Gdansk Academy of Fine Arts Brand

Autorzy:

Nieczyporowski, Roman

Powiązania:

https://bibliotekanauki.pl/articles/24526550.pdf

Data publikacji:

2023

Wydawca:

Akademia Sztuk Pięknych w Gdańsku

Tematy:

Teresa Sierant-Mikicicz
Academy of Fine Arts in Gdansk
art history
art theory
Women at the Academies of Fine Arts

Źródło:

Sztuka i Dokumentacja; 2023, 29; 57-62
2080-413X

Pojawia się w:

Sztuka i Dokumentacja

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Strategies for Supporting the Development of Manual Skills in Preschool and Early School Age Children
Strategie wspomagania rozwoju umiejętności manualnych dzieci w wieku przedszkolnym i wczesnoszkolnym

Autorzy:

Wójcik, Magdalena

Powiązania:

https://bibliotekanauki.pl/articles/15833236.pdf

Data publikacji:

2021-11-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

fine motor abilities and skills
gross motor development
fine motor development
preschool children
early school age children
manual skills

Opis:

The development of fine motor skills in preschool and early school age children is a difficult and long process, and its disturbance may not only lead to serious problems with the process of drawing or writing, but also disrupt the purely academical learning. That is why it is so important to take into account the overall effects of improving manual skills, the specificity of the child’s perceptual and motor functioning at a given stage of development and to respect the key elements of the diagnostic and improvement strategy.

Źródło:

Studia Edukacyjne; 2021, 63; 169-178
1233-6688

Pojawia się w:

Studia Edukacyjne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Sztuka Białych w południowej Afryce - od ubóstwa do bogactwa?
Art of Whites in South Africa: from poverty to richness?

Autorzy:

Żukowski, Arkadiusz

Powiązania:

https://bibliotekanauki.pl/articles/567220.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych

Tematy:

South Africa
Fine arts
White people
African art

Opis:

The South African art is not uniform. It expresses cultural and civilization diversity of the country. In characterization of the art of white people in South Africa the article focuses above all on the fine arts (on painting and sculpture) but architecture, theatre and music were as taken into consideration. The art of white people in South Africa was being created and formed in specific conditions, far away from Europe. Although the art was powerfully influenced by Europe, especially in the initial period. In the beginning it was also very elite and quite impenetrable. It was not almost opened to the cultural heritage of the other inhabitants of South Africa. Together with the industrialization, increasing prosperity of white population, especially in the 20th century, significant development of the art of white people in this country occurred. At that time, artists derived inspirations as well from the African art. This art was creating its own and genuine style and some trends were strongly supported by authorities in Pretoria.

Źródło:

Forum Politologiczne; 2011, 12 - Problemy bogactwa i biedy we współczesnej Afryce; 587-594
1734-1698

Pojawia się w:

Forum Politologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Ultrastructure of Diplophrys parva, a New Small Freshwater Species, and a Revised Analysis of Labyrinthulea (Heterokonta)

Autorzy:

Anderson, O. Roger
Cavalier-Smith, Thomas

Powiązania:

https://bibliotekanauki.pl/articles/763447.pdf

Data publikacji:

2012

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Diplophryidae, fine structure, molecular genetics, Labyrinthomyxa, labyrinthulean taxonomy

Opis:

We describe Diplophrys parva n. sp., a freshwater heterotroph, using fine structural and sequence evidence. Cells are small (L = 6.5 ± 0.08, W = 5.5 ± 0.06 µm; mean ± SE) enclosed by an envelope/theca of overlapping scales, slightly oval to elongated-oval with rounded ends, (1.0 × 0.5–0.7 µm), one to several intracellular refractive granules (~ 1.0–2.0 µm), smaller hyaline peripheral vacuoles, a nucleus with central nucleolus, tubulo-cristate mitochondria, and a prominent Golgi apparatus with multiple stacked saccules (~ 10). It is smaller than published sizes of Diplophrys archeri (~ 10–20 µm), modestly less than Diplophrys marina (~ 5–9 µm), and differs in scale size and morphology from D. marina. No cysts were observed. We transfer D. marina to a new genus Amphifila as it falls within a mo-lecular phylogenetic clade extremely distant from that including D. parva. Based on morphological and molecular phylogenetic evidence, Labyrinthulea are revised to include six new families, including Diplophryidae for Diplophrys and Amphifilidae containing Amphifila. The other new families have distinctive morphology: Oblongichytriidae and Aplanochytriidae are distinct clades on the rDNA tree, but Sorodiplophryidae and Althorniidae lack sequence data. Aplanochytriidae is in Labyrinthulida; the rest are in Thraustochytrida; Laby-rinthomyxa is excluded.

Źródło:

Acta Protozoologica; 2012, 51, 4
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

Mechanism of ultrasonic cavitation to improve the effect of siderite on quartz flotation

Autorzy:

Yin, Wanzhong
Cai, Lizheng
Ma, Yingqiang
Wang, Ying

Powiązania:

https://bibliotekanauki.pl/articles/24085972.pdf

Data publikacji:

2023

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

ultrasound treatment
cover
fine siderite
CaCO3 precipitate

Opis:

In order to effectively eliminate the effect of fine carbonate minerals on quartz flotation, the influence of fine siderite on quartz flotation was studied as well as the mechanism or role of ultrasonic treatment in the process. The results of adsorption capacity measurement and flotation solution chemical calculation show that fine siderite and its dissolved components have a great influence on the collector consumption and the surface properties of quartz. In addition, SEM, EDS and XPS analysis were used to study the surface morphology and chemical environment changes of quartz with and without ultrasonic treatment. The results of flotation test show that the recovery of quartz increase from 38.79% to 58.38% under the condition that ultrasonic time was 0.5 min and ultrasonic power was200 W. The mechanical effect caused by ultrasonic cavitation can clean the quartz surface to a certain extent and increase its active sites, thus improving the floatability of quartz.

Źródło:

Physicochemical Problems of Mineral Processing; 2023, 59, 2; art. no. 165930
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Experimental study of quartz classification in the enhanced gravity field using Falcon concentrator

Autorzy:

Zhang, Ling
Yang, Lu
Hou, Haochun
Zhao, Yan
Lin, Jun
Zhang, Zeliang
Bu, Caiyun
Zheng, Xinran
Fu, Dong

Powiązania:

https://bibliotekanauki.pl/articles/27323652.pdf

Data publikacji:

2023

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

classification
enhanced gravity field
fine particles
fish-hook

Opis:

The classification and separation of minerals happen in the traditional gravity separation simultaneously. This paper focuses on the classification performance of quartz particles in the enhanced gravity field. The classification efficiency of single quartz particles decreased then increased with the increase of rotational angular velocity, while it decreased with the increase of backwash water pressure. The classification efficiency of -0.5 +0.25mm, -0.25 +0.125mm, -0.125 +0.074mm, -0.074 +0.045mm and -0.045mm quartz was higher than the corresponding narrow size of -0.5mm quartz in general. The “fish-hook” phenomenon appeared in the partition curve of -0.5mm quartz under small/large rotational angular velocity and small backwash water pressure, and the dip point could be found in fine particles region, which indicated that the “fish-hook” was closely related with operating parameters and particle size. A medium rotational angular velocity and larger backwash water pressure could be helpful to avoid the appearance of “fish-hook” in fine particles region and achieve a better classification performance. This investigation is beneficial to understand the regularity of particle migration in the enhanced gravity field.

Źródło:

Physicochemical Problems of Mineral Processing; 2023, 59, 6; art. no. 175242
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Kompetencja Rzecznika Finansowego do nakładania kar pieniężnych na podmioty rynku finansowego
Competence Of The Financial Ombudsman To Impose Fines On Financial Market Entities

Autorzy:

Wyżykowski, Bartosz

Powiązania:

https://bibliotekanauki.pl/articles/927589.pdf

Data publikacji:

2018-09-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

administrative fine
administrative decision
Financial Ombudsman
financial market entity

Opis:

The subject of this article is the competence of the Financial Ombudsman to impose financial penalties on financial market entities for violations of the provisions of the Act of 5 August 2015 on complaints handling procedures by financial market entities and on the financial Ombudsman. One of the main tasks of the Financial Ombudsman is to enforce the proper performance by financial market entities of their obligations under the Act. For this purpose, Article 32(1) thereof provides that in the event of a breach of the provisions set out in the Act the Financial Ombudsman may, by way of a decision, impose a fine of up to PLN 100 000. The short duration of the new provisions and, consequently, the lack of case law outlining the directions of their interpretation may, particularly in the initial period, give rise to doubts as to their application. The aim of the article is to analyse possible disputable issues and provide proposals for their resolution. In particular, it is necessary to discuss the conditions for imposing a fine on a financial market entity. In this regard it is important to analyse both – the specific torts indicated in Article 32(1) of the said Act, as well as the general rules upon which the imposition of administrative fines by the Financial Ombudsman is possible. Also important is the consideration of the rules for determining the amount of the fine and in this matter the mutual relationship between Article 32 and the provisions of section IVa of the Act of 14 June 1960. Finally, amendments to certain provisions of the exiting laws are being proposed in order to increase the effectiveness of actions undertaken by the Financial Ombudsman and consequently to increase the level of protection of clients of financial market entities.  

Źródło:

Studia Prawa Publicznego; 2018, 3 (23); 75-112
2300-3936

Pojawia się w:

Studia Prawa Publicznego

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Trace fossils from the Lower Jurassic Ciechocinek Formation, SW Poland

Autorzy:

Leonowicz, P.

Powiązania:

https://bibliotekanauki.pl/articles/2061349.pdf

Data publikacji:

2008

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

trace fossils
fine-grained clastics
brackish environment
Lower Jurassic

Opis:

Mud-silt deposits of the Lower Jurassic Ciechocinek Formation from the Czestochowa-Wielun region are characterized by a low diversity ichnofossil association, which includes the ichnogenera Planolites, Palaeophycus, Helminthopsis, Gyrochorte, Protovirgularia and Spongeliomorpha as well as some unidentified pascichnia. This association points to deposition in a low-energy brackish environment with poorly oxygenated sediments. Changes of seafloor oxygenation, influenced by periodical bottom currents, resulted in various bioturbation intensities, which range from none to high.

Źródło:

Volumina Jurassica; 2008, 6, 1; 89-98
1896-7876
1731-3708

Pojawia się w:

Volumina Jurassica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Preparation of Nickel Powders by Reduction of Nickel Hydroxide Using the Taylor Fluid Flow

Autorzy:

Park, I.-J.
Kim, D.-W.
Kim, G.-H.
Chae, H.-J.
Jung, H.-C.

Powiązania:

https://bibliotekanauki.pl/articles/355021.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Ni(OH)2
nickel
Taylor fluid flow
fine powder

Opis:

In this study, Ni(OH)₂ was synthesized by the continuous reaction by the Taylor fluid flow and compared with those prepared from the conventional batch type reaction. The nickel powders were synthesized by reduction of Ni(OH)₂ in an aqueous solution with hydrazine hydrate acting as the reductant. And then the characteristics of the nickel powder according to the synthesis method were compared. The average particle size of the synthesized Ni(OH)2 using Taylor reactor was generally decreased about 1.5~2.5 times more than the batch reaction. The nickel powders prepared by the batch reaction highly agglomerated with non-uniform particles. In the Taylor reaction, the agglomeration of particles was broken and uniform nickel powder was produced.

Źródło:

Archives of Metallurgy and Materials; 2018, 63, 3; 1443-1447
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Rational Speculative Bubbles in the Fine Wine Investment Market

Autorzy:

Czupryna, Marcin
Oleksy, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/630092.pdf

Data publikacji:

2015

Wydawca:

Szkoła Główna Handlowa w Warszawie

Tematy:

rational speculative bubbles, fine wine, wine investment, wine exchange

Opis:

The paper focuses on detection of rational speculative bubbles in fine wineinvestment market. Our research was conducted using recursive tests. The chosenmethod additionally allowed us to set time frames for potential bubbles. Theresults have shown that speculative bubble episodes appeared between 2006–2007both in fine wine market and in most of selected traditional stock exchanges.However, only the fine wine market recorded the second wave of speculativebubbles between 2010–2011.

Źródło:

Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace; 2015, 3, 3; 159-172
2082-0976

Pojawia się w:

Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Reducing entrainment of sericite in fine flaky graphite flotation using polyaluminum chloride

Autorzy:

Qiu, Yangshuai
Zhang, Lingyan
Sun, Kangkang
Li, Ye
Qian, Yupeng

Powiązania:

https://bibliotekanauki.pl/articles/109740.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

fine flaky graphite
sericite
polyaluminum chloride (PACl)
dispersion
aggregation

Opis:

Polyaluminum chloride (PACl) was introduced as a flocculant to reduce the entrainment of sericite gangue in fine flaky graphite flotation. The dispersion and aggregation behaviours of sericite and fine flaky graphite in the absence and presence of PACl were studied by settling experiments and verified by optical microscope images. Results of batch flotation tests for artificial mixtures indicated that the addition of PACl decreased the recovery of sericite gangue and the water recovery. Zeta potential measurements, FTIR and XPS analyses revealed that PACl selectively aggregated sericite particles in terms of charge neutralization and precipitate enmeshment.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 5; 1108-1119
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:

Deashing and desulphurization of fine oxidized coal by falcon concentrator and flotation

Autorzy:

Zhu, X.
Tao, Y.
Sun, Q.
Man, Z.
Xian, Y.

Powiązania:

https://bibliotekanauki.pl/articles/951856.pdf

Data publikacji:

2016

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

fine oxidized coal
desulphurization
deashing
flotation
enhanced gravity separation

Opis:

Flotation and enhanced gravity separation based on different separation principles were carried out to investigate the desulphurization and deashing efficiency of fine oxidized coal. Surface properties of fresh and oxidized coals were tested by XPS and results showed that the contents of hydrophobic functional groups decreased while the content of hydrophilic functional groups increased after oxidization. Floatability and density analysis results showed that the floatability of coal samples decreased sharply because of oxidation, however, density composition of coal sample only had slight changes. Separation results showed that yields of gravity concentrates outclassed that of flotation concentrates, meanwhile, ash contents and sulfur contents of gravity concentrates were far lower than that of flotation concentrates. Yields and ash contents increased with the collector dosage and achieved to be 17.83 and 26.94% respectively when the collector dosage was 1600 g•Mg-1. Yields and ash contents of gravity concentrates decreased with the centrifugal force and increased with the recoil water flow with similar sulfur content. Clean coal with yield of 53.86%, ash content of 9.81%, sulfur content of 1.47% and with a corresponding desulphurization efficiency of 44.53% was achieved at centrifugal force of 107 g and recoil water flow of 13.3 dm3•min-1. For fine oxidized coal, enhanced gravity separation has a significant advantage of the separation efficiency compared with flotation.

Źródło:

Physicochemical Problems of Mineral Processing; 2016, 52, 2; 634-646
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Między fotografią klasyczną a cyfrową – wybrane aspekty edukacji
Between Classical and Digital Photography – Some Aspects of Education

Autorzy:

PIWOWARSKA, Ewa
PIWOWARSKI, Jerzy

Powiązania:

https://bibliotekanauki.pl/articles/455150.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Rzeszowski

Tematy:

fotografia
edukacja
plastyka
nauczyciel
photography
education
fine arts
teacher

Opis:

W artykule, odwołując się do dziejów fotografii, ukazano jej rosnący zakres zastosowań dotyczący m.in. wykorzystania w badaniach naukowych, poligrafii oraz w sztuce. Wzrost dostępności nowego medium sprawił, że stało się ono przedmiotem powszechnej edukacji plastycznej. Analiza obowiązujących programów kształcenia pozwoliła przedstawić koncepcję edukowania nauczycieli.
Referring to history of photography, this article presents extending range of photography use, which concerns among others application in scientific research, printing industry and art. Increase in availability of this new medium caused that it has become object of common art education. Analysis of current curricula allows to present concepts for educating teachers.

Źródło:

Edukacja-Technika-Informatyka; 2015, 6, 3; 133-138
2080-9069

Pojawia się w:

Edukacja-Technika-Informatyka

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Using Agglomeration Techniques for Coal and Ash Waste Management in the Circular Economy

Autorzy:

Borowski, Gabriel
Alsaqoor, Sameh
Alahmer, Ali

Powiązania:

https://bibliotekanauki.pl/articles/2023308.pdf

Data publikacji:

2021

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

fine coal
fly ash
agglomeration
waste management
circular economy

Opis:

This is a scoping review of agglomeration techniques to obtain of solid bodies from particle waste-materials for their utilization. For this purpose, the granulation and briquetting of fine coal and fly ash were presented in detail. Many successful works on solid fuels production, with coal only, and also with the addition of biomass, were presented. During the solid fuel combustion in power boilers, significant amounts of ash are generated. The properties of fly ashes were taken into consideration, and different methods of their utilization were proposed to obtain a wide range of useful products. Con-sequently, the waste resources of coal and ash were fully utilized. In final remarks, it was concluded, that the agglomeration techniques play an important role in waste management, but particularly in the circular economy.

Źródło:

Advances in Science and Technology. Research Journal; 2021, 15, 3; 264-276
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Laser Welding of New Grade of Advanced High Strength Steel STRENX 1100 MC

Autorzy:

Kurc-Lisiecka, A.
Piwnik, J.
Lisiecki, A.

Powiązania:

https://bibliotekanauki.pl/articles/351943.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

laser welding
disk laser
fine-grain steel
butt joint

Opis:

The article presents results of investigations on autogenous laser welding of new grade STRENX 1100 MC steel. The modern Disk laser was applied for of 5.0 mm thick butt joints welding. The influence of laser welding parameters, mainly the energy input of laser welding on the penetration shape, weld quality, structure and mechanical performance was investigated. It was found that the investigated steel has surprisingly low carbon equivalent CET just 0.328, and also relatively high temperature of martensitic transformation M_s at 430.6°C. Despite very rapid cooling times t_8/5 in a range from 0.6 to 1.3 s, thus rapid solidification there was no tendency to cracking of weld metal or HAZ. Significant drop of microhardness in the HAZ resulted in a decrease of tensile strength of joints, compared to the base metal. Impact toughness of test joints was at only 50÷60% of the base metal.

Źródło:

Archives of Metallurgy and Materials; 2017, 62, 3; 1651-1657
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Processing of Copper by Hydrostatic Extrusion – Studies of Microstructure and Properties

Autorzy:

Leszczyńska-Madej, B.
Richert, M. W.
Nejman, I.
Zawadzka, P.

Powiązania:

https://bibliotekanauki.pl/articles/352202.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

HE
ultra-fine grained copper
microstructure characterization
mechanical properties

Opis:

The present study attempts to apply HE to 99.99% pure copper. The microstructure of the samples was investigated by both light microscopy and scanning transmission electron microscopy (STEM). Additionally, the microhardness was measured, the tensile test was made, and statistical analysis of the grains and subgrains was performed. Based on Kikuchi diffraction patterns, misorientation was determined. The obtained results show that microstructure of copper deformed by hydrostatic extrusion (HE) is rather inhomogeneous. The regions strongly deformed with high dislocation density exist near cells and grains/subgrains free of dislocations. The measurements of the grain size have revealed that the sample with an initial in annealed-state grain size of about 250 μm had this grain size reduced to below 0.35μm when it was deformed by HE to the strain ε=2.91. The microhardness and UTS are stable within the whole investigated range of deformation.

Źródło:

Archives of Metallurgy and Materials; 2016, 61, 3; 1575-1580
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Influence of particle size on flotation separation of ilmenite, olivine, and pyroxene

Autorzy:

Yang, Yaohui
Xu, Longhua
Liu, Shujun
Deng, Jian

Powiązania:

https://bibliotekanauki.pl/articles/1447002.pdf

Data publikacji:

2021

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

olivine pyroxene
ilmenite
fine particles
narrow size
flotation separation

Opis:

The rock type in Panxi area is changing from gabbro type to olivine pyroxene type, which makes it difficult for enterprises to obtain better beneficiation indexes at present. In order to solve this problem, we use a variety of modern test techniques, such as zeta potential measurements, Fourier-transform infrared (FTIR) spectroscopy, adsorption amount measurements, and mineral-reagent interaction energy simulation to analyze the influence of particle size on mineral flotation behavior and the interaction of fine-grained minerals in this paper. The experiments results indicate that the presence of fine-grained (-19 um) mineral particles is deleterious to the flotation of ilmenite, the ilmenite recovery decreases as the microfine grade content of pyroxene and olivine increases, distribution of narrow size minerals is beneficial to the minerals flotation performance, and the order of sodium oleate (NaOL) adsorption strength on different ilmenite crystal planes is (1011) > (0001). The research results of this paper deepen the understanding of the olivine type ilmenite resources in Panxi area, enrich the theoretical system of flotation separation of refractory ilmenite, and provide theoretical support for the key technical problems of flotation separation of ilmenite in Panxi area.

Źródło:

Physicochemical Problems of Mineral Processing; 2021, 57, 5; 106-117
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Effect of ultrasonic pre-treatment on coal slime flotation

Autorzy:

Lv, Wenbao
Chen, Jun
Min, Fanfei
Hou, Baohong
Liu, Chunfu

Powiązania:

https://bibliotekanauki.pl/articles/1450106.pdf

Data publikacji:

2020

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

ultrasonic pretreatment
surface property
high-ash fine mud
flotation

Opis:

Combined with the characteristics of flotation feed originating from China’s Panyidong Coal Preparation Plant, the ash, zeta potential, X-ray fluorescence spectroscopy and contact angle test were used to study changes in the surface properties of flotation feed under ultrasonic pre-treatment, and its effect on flotation of coal slime. Results show that Preferred pre-treatment process is ultrasonic secondary treatment, ultrasonic secondary pre-treatment can remove most of the high-ash fine mud for instance kaolinite, montmorillonite and quartz in the coal slurry, reduce the surface electronegativity of coal particles, and increase the contact angle of coal particles. Thus, the concentrate ash content decreases to 13%, the recovery rate, yield of flotation concentrate and combustible matter recovery reach 92.6%, 90.9% and 97.6%, respectively.

Źródło:

Physicochemical Problems of Mineral Processing; 2020, 56, 1; 173-183
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

fucking with grammar

Autorzy:

Aboim, Mariana

Powiązania:

https://bibliotekanauki.pl/articles/31343001.pdf

Data publikacji:

2023

Wydawca:

Uniwersytet Warszawski. Ośrodek Studiów Amerykańskich

Tematy:

practice-led research
fine art
language
cisheteronormativity
embodied experience

Opis:

Art practices occupy a space of liminality within academia, being valid, appropriate to illustrate questions and discourses in social sciences and humanities, and not sufficient in mainstream academia to assert what art foregrounds as ‘knowledge’. So, what happens when art has something to claim through non-academic methods of inquiry? Even more complicated, what happens when art allows putting forward theoretical hypothesis involving the immateriality of affect? Departing from a practice-led research focusing on the endurance of white, cisgender, and heteropatriarchic impositions, as well as the ways these impositions materialise themselves on the body, this paper explores the possibilities of Fucking with grammar, a writing method developed throughout the writing of my PhD research. Linguistics has been stretched for centuries by QUILTBAG individuals — queer and questioning, unsure, intersex, lesbian, transgender and two-spirit, bisexual, asexual and aromantic, gay and genderqueer; swardspeak, lavender, and code-switching all entail ways of reshaping and creating language as response to socio-political necessities, camouflage, or simply to access a jargon that can be more faithful to practices and embodiments of the group creating it. However, there is a different kind of reclaiming emerging, when performance artist, actress, and activist Linn da Quebrada utters “I am a cisgender woman with one breast and a penis,” she is committing the kind of epistemic disobedience that undoes epistemology. Here, I focus on disobediences that bring western epistemologies to collapse. These challenges that contribute to what Denise Ferreira da Silva calls “the end of the world as we know it” (2014). To end what ‘we’ know requires a different ‘how’, it entails methodological deployments that help bringing into crisis academic hierarchies regarding [research] corroborability. Questioning after Audre Lorde: how does one make tangible the immeasurable and unpredictable without being averted and undercut by the tools still sustaining the master’s house? The approach I propose here is Fucking with grammar. Fucking with is associated with messing with someone; fuck you or fuck me is negatively perceived; in sex, ‘fuck you’ or ‘fuck me’ is one-sided — the act of fucking should be fucking with, because even when saying ‘I want to fuck you’ it is still necessary more than one person for this ‘fucking’ to actually happen. Similarly, in English, the correct preposition following the verb ‘to dream’ is ‘of’ or ‘about’, which makes absolutely no sense: because when one is dreaming, one is embedded in a withness that ‘of’ or ‘about’ cannot account for. This piece shares how I fuck with grammar within a practice-led PhD research: applying Portuguese and Turkish grammar structures to English, generating verbs or nouns out of adjectives and vice versa[s]. Fucking with grammar is a mode of surpassing some of language’s limitations when speaking of that which is immaterial; it is a semantic slap in the face calling for decolonisation of one’s immediacy of logic when assuming typos and linguistic ignorance within writings not following English normativities. I t is a method that contributes to a broader challenge to formats sustaining hierarchies around what is considered ‘academic’ research.

Źródło:

InterAlia: Pismo poświęcone studiom queer; 2023, 18; 116-127
1689-6637

Pojawia się w:

InterAlia: Pismo poświęcone studiom queer

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Remarks on the Tightening of Liability for Certain Traffic Offences

Autorzy:

Łucarz, Katarzyna

Powiązania:

https://bibliotekanauki.pl/articles/52089905.pdf

Data publikacji:

2024

Wydawca:

Uczelnia Łazarskiego. Oficyna Wydawnicza

Tematy:

traffic offence, traffic violation, criminal punishment, prohibited act, fine

Opis:

The author discusses the nature and scope of changes introduced to the Code of Petty Offences and the Code of Procedure in Petty Offences Cases by the Act of 2 December 2021. The amendment represents a drastic intervention by the legislator in the current legal framework regarding offences against safety and order in transportation. It foresees significant modifications in the legal and criminal response to these offences, transformations in the characteristics of selected types of prohibited acts, and proposes entirely new types of prohibited acts. The analysis suggests that the guiding principle behind these changes is to increase the degree of punitiveness of petty offences law towards perpetrators of traffic violations. This legislative approach raises concerns about the instrumental use of petty offences law with respect to the perpetrators of these offences. The adopted direction of changes raises suspicions that the legislator has not thoroughly familiarised themselves with the matter covered by their intervention. In any case, it is not grounded in the current state of traffic criminality, or in the analysis of judicial practice. An increase in repressiveness has never directly translated into a reduction in traffic criminality. The latter is a much more complex problem, involving the necessity of multi-faceted references.

Źródło:

Ius Novum; 2024, 18, 2 ENG; 55-69
1897-5577

Pojawia się w:

Ius Novum

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Sposoby kształcenia w grafice książkowej w wyższym szkolnictwie artystycznym Krakowa i Warszawy w Polsce Ludowej (1945-1952)
Education in graphic arts in the tertiary artistic education system in Krakow and Warsaw in the Polish People’s Republic (1945–1952)

Autorzy:

Boguszewska, Anna

Powiązania:

https://bibliotekanauki.pl/articles/956628.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Tertiary artistic education in the Polish People’s Republic graphic education
Academy of Fine Arts in Krakow
Academy of Fine Arts in Warsaw

Opis:

The purpose of the study is to present the principles of education in the field of book art as part of applied graphics, provided at the Academies of Fine Arts in Krakow and Warsaw. These two academic environments stimulated revival of this type of education. The analysis pertains to 1945–1952 when Poland witnessed crucial political and ideological changes affecting a new character of education. In the study, the process of nationalisation of artistic education is presented. The author shares her assumptions of the new teaching curricula designed in accordance with the ideological needs of the communist authorities. Marxism-Leninism was taught as a foreground subject. Graphic departments were established to educate specialists to be employed by the state propaganda. An attempt has been made to reconstruct the personal composition of the graphic faculties lecturers in both academic centres.

Źródło:

Biuletyn Historii Wychowania; 2019, 41; 63-75
1233-2224

Pojawia się w:

Biuletyn Historii Wychowania

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Recovery of fine coal grains from post-mining wastes with use of autogenous suspending bed technology

Autorzy:

Kowol, Daniel
Kurama, Haldun

Powiązania:

https://bibliotekanauki.pl/articles/409862.pdf

Data publikacji:

2020

Wydawca:

STE GROUP

Tematy:

classification
fine grains
post-mining wastes dump sites
suspending bed

Opis:

In addition to rock waste post-mining waste dump sites also contain coal grains justifying treating the dump sites as secondary mineral deposits. The article presents the results of laboratory tests aimed at determining the possibility of using suspending bed technology to separate a combustible substance from post-mining waste of a 4-0 mm grain size. The test results showed the possibility of obtaining good quality coal concentrates from coal waste of a grain size of 4-1 mm. The need for desludging and densifying the feed for the classifier with an autogenic suspending bed in the case of coal waste beneficiation in a wide 4-0 mm grain size justifies the use of a twochamber device or two separate classifiers for narrower grain size classes. Concepts of systems for the recovery of fine coal grains providing the use of the classifier with autogenous suspending bed for the density distribution of feeds with high ash content are presented. The concepts were developed for beneficiation of the material in a 4-0 mm grain class.

Źródło:

Management Systems in Production Engineering; 2020, 4 (28); 220-227
2299-0461

Pojawia się w:

Management Systems in Production Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

Experimental study of the shear resistance of granular material: influence of initial state

Autorzy:

Flitti, A.
Della, N.
Verástegui Flores, R. D.

Powiązania:

https://bibliotekanauki.pl/articles/282069.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

dry sand
fine content
water content
grain size
depositional method

Opis:

The shear strength of sand and its mechanical properties can be affected by numerous parameters. This work presents an experimental investigation which aims to study the influence of the fines content, the depositional method and the grain size on the shear strength of Chlef sand. Tests were conducted with the shear box on two types of soil, the natural sand and the clean sand-silt mixture. Dense samples (Dr = 88%) were reconstituted through dry deposition for each type of the material. An additional series of tests was carried out on a medium dense natural sand (Dr = 52%) prepared by dry and wet (w = 3%) deposition methods. All specimens were subjected to normal stresses of 100 kPa, 200 kPa and 300 kPa and there was no immersion of water. The tests results show that the behavior of sand can be affected by three parameters, the fines content, the deposition method and the particle size. The maximum shear stress and the friction angle decrease as the fines content increases, the initial water content increases, the effective grain size diameter decreases and the uniformity coefficient increases. The cohesion intercept increases with the increasing fines content and decreasing initial water content. Overall, the samples prepared by the dry deposition method show more resistance than those prepared by the wet deposition method. The results obtained are generally in agreement with the previous research on drained and undrained saturated sand in the literature.

Źródło:

Journal of Theoretical and Applied Mechanics; 2017, 55, 2; 523-533
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Structural modification of cellulose to enhance the flotation efficiency of fine copper oxide ore

Autorzy:

Gu, Guohua
Zhu, Renfeng
Chen, Zhixiang

Powiązania:

https://bibliotekanauki.pl/articles/109394.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

fine malachite
collector
sulfuration flotation
contact angle
mean size
flocculation

Opis:

Using more efficient collector to improve the recovery efficiency of fine copper oxide has become imperative as the shortage of copper mineral resources. In this study, the new collector 3-hydroxy butyrate-carboxy methyl cellulose xanthate (HCMCX) was synthesized by carboxy methyl cellulose, 3-hydroxy butyrate and carbon disulfide, all of which as raw materials . The structural characteristics of HCMCX was detected by both infrared spectrum and ultraviolet spectrum. Besides, the interacting behavior between HCMCX and fine malachite was investigated through particle size analysis, contact angle measurements, and flotation tests. Particle size analysis indicated that the mean size of malachite was increased by 8 μm while the HCMCX concentration at 200 mg/dm3. The contact angle measurements demonstrated that, comparing with the collector AX at a same dosage, the mineral surface of malachite showed a stronger hydrophobicity after interacting with HCMCX. Microflotation tests results exhibited that the recovery of malachite was about 94% when the pulp pH 8 and collector concentration at 200 mg/dm3. The results of practical ore flotation tests showed that HCMCX could as an excellent collector for flotation of fine malachite, finally to achieve the concentrates containing 20% Cu and 88% Cu recovery.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 1; 58-69
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:

Effects of ultrasonic treatment on the particle size, shape and ash content of fine coal

Autorzy:

Mao, Yuqiang
Xie, Guangyuan
Liang, Long
Xia, Wencheng
Peng, Yaoli

Powiązania:

https://bibliotekanauki.pl/articles/109544.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

ultrasonic time
fine coal
particle size
particle shape
ash content

Opis:

The effects of ultrasonic treatment of different time on the particle size, morphology, ash content, and elementary composition of fine coal particles (74-45 μm) were investigated in this paper. The size reduction of coal particles induced by ultrasonic treatment was analyzed through the Focused Beam Reflectance Measurement (FBRM) and the variation of mechanical pulverization mechanism was discussed. The Scanning Electron Microscope (SEM) measurements showed that the sharp corners on coal particles was ground to round ones after ultrasonic treatment. This may be not conducive to coal flotation. It was also found that the ash content of 74-45 μm coal particles was increased gradually with the increase of ultrasonic time, while the ash content of -45 μm fraction was decreased. This was supported by the EDS measurements, indicating that the carbon content on the surfaces of 74-45 μm coal was reduced while the aluminium and silicon contents were increased after ultrasonic treatment.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 3; 679-688
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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