Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Kapusta, A." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 83
Tytuł:
Kolekcja aktywna nasion zasobów genowych roślin ogrodniczych w Regionalnym Centrum Bioróżnorodności Ogrodniczej Instytutu Ogrodnictwa - Państwowego Instytutu Badawczego w Skierniewicach
Active collection of seeds of genetic resources of horticutular plants in the Rgional Centre for Horticulatural Biodiversity of the National Institute of Horticultural Research in Skierniewice
Autorzy:
Chojnowski, M.G.
Dostatny, D.F.
Bakalarska, A.
Kapusta, E.
Szyszkowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/28763063.pdf
Data publikacji:
2022
Wydawca:
Instytut Ogrodnictwa
Tematy:
bank nasion
bank nasion aktywny
rosliny ogrodnicze
Instytut Ogrodnictwa w Skierniewicach
Źródło:
Zeszyty Naukowe Instytutu Ogrodnictwa; 2022, 30; 1-14
2300-5882
2391-8969
Pojawia się w:
Zeszyty Naukowe Instytutu Ogrodnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indeks troficzności gleb o zróżnicowanym wieku zalesienia
Trophyindex of soil in different age of afforestation
Autorzy:
Wójcikowska-Kapusta, A.
Kamiński, H.
Powiązania:
https://bibliotekanauki.pl/articles/13095430.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Agronomy Science; 2020, 75, 3; 91-102
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An assessment of diabetes-dependent quality of life (ADDQoL) in women and men in Poland with type 1 and type 2 diabetes
Autorzy:
Bąk, E.
Nowak-Kapusta, Z.
Dobrzyń-Matusiak, D.
Marcisz-Dyla, E.
Marcisz, C.
Krzemińska, S.A.
Powiązania:
https://bibliotekanauki.pl/articles/2084984.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
quality of life
Beck Depression Inventory
acceptance of illness scale
type 1 and 2 diabetes
ADDQoL
Opis:
Introduction. Quality of Life (QoL) of Polish women and men with type 1 diabetes (T1DM) and type 2 diabetes (T2DM) was analyzed, taking into consideration acceptance of the illness, the occurrence of depression, complications of diabetes, concentration of glycated haemoglobin, and demographic factors. Materials and method. The study was conducted among 115 patients with T1DM and 215 patients with T2DM aged 18–60. The patients were divided into women and men. The tool applied for studying QoL was the Polish language version of the Audit of diabetes-dependent QoL questionnaire(ADDQoL) comprising 2 questions related to the general QoL and 19 domains related to aspects of life. Each domain included 2 components: Impact and Importance, and their product determined the value of the weighted impact score. The Acceptance of Illness Scale, Beck Depression Inventory and studied demographic and clinical parameters were also applied. Results. Patients with both types of diabetes demonstrated a negative influence of the disease in all domains of ADDQoL. Values of the average weighted impact of ADDQoL showed significant associations with diabetic complications in T1DM and gender and depressive symptoms in T2DM. Diabetes negatively affects the QoL of diabetic patients in Poland, especially regarding freedom to eat and to drink and sex life in both genders in T1DM, and freedom to eat and drink, and feelings about the future in both genders, and working life and sex life in T2DM men. Conclusions. Risk factors for worse QoL are: the occurrence of diabetes complications in T1DM patients and male gender and depression in T2DM patients.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 3; 429-438
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the possibility of enzymatic decomposition of cellulose blockers
Autorzy:
Turkiewicz, A.
Kapusta, P.
Powiązania:
https://bibliotekanauki.pl/articles/298965.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
organic blockers
modified cellulose
enzyme
biodegradation
drilling mud
Opis:
The article discusses two series of the biodegradation tests of organic blockers used in drilling mud technology. Degradation process of the selected cellulose blockers in terms of quality was assessed by the colorimetric method. In all test solutions these tests revealed the presence of free glucose which is the final product of degradation of modified cellulose from which blockers were made. The beginning of the degradation process was noted already after 48 hours of the impact of enzymatic preparations on samples of blockers. The progress of the degradation process after 30 and 40 days of incubation was assessed by gravimetric method by draining sludge and marking blocker dry matter after enzymatic impact, comparing the sludge matter in samples with the specified enzyme to control samples without the addition of the enzyme. The research described in the work may be useful in the oil industry as they contain data (from laboratory-scale tests) on potential treatments with the use of enzymatic preparations. Detailed data on the degree of degradation of individual enzymatic preparations is included in the tables.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 41-48
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD simulations as a support of experimental research in a rapid compression expansion machine facility
Autorzy:
Jach, A.
Pyszczek, R.
Kapusta, Ł. J.
Teodorczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/243463.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
AVL FIRETM
self-ignition
RCEM
CFD
knocking combustion
Opis:
The main aim of this study to reproduce methane combustion experiment conducted in a rapid compressionexpansion machine using AVL FIRETM software in order to shed more light on the in-cylinder processes. The piston movement profile, initial and boundary conditions as well as the geometry of the combustion chamber with a prechamber were the same as in the experiment. Authors by means of numerical simulations attempted to reproduce pressure profile from the experiment. As the first step, dead volume was tuned to match pressures for a non-combustion (air-only) case. Obtained pressure profile in air compression simulations was slightly wider (prolonged occurrence of high pressure) than in the experiment, what at this stage was assumed to have negligible significance. The next step after adjusting dead volume included combustion simulations. In the real test facility, the process of filling the combustion chamber with air-fuel mixture takes 15 s. In order to shorten computational time first combustion simulations were started after the chamber is already filled assuming uniform mixture. These simulations resulted in more than two times higher maximum pressure than recorded in experiments. It was concluded that turbulence decays quickly after filling process, what was also confirmed by next combustion simulations preceded by the filling process. Then the maximum pressure was significantly decreased but still it was higher than in the experiments. Based on the obtained results it was assumed that the discrepancy noticed in air cases is further increased when combustion is included. Moreover, the obtained results indicated that pre-combustion turbulence level is very low and suggested that either piston profile movement is not correct or there is high-pressure leak in the test facility.
Źródło:
Journal of KONES; 2018, 25, 4; 141-147
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contents of selected macronutrients in bottom sediments of two water reservoirs and assessment of their suitability for natural use
Zawartość niektórych makroelementów w osadach dennych dwóch zbiorników wodnych i ocena ich przydatności do przyrodniczego wykorzystania
Autorzy:
Wójcikowska-Kapusta, A.
Smal, H.
Ligęza, S.
Powiązania:
https://bibliotekanauki.pl/articles/292376.pdf
Data publikacji:
2018
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bottom sediments
Ca
Mg
K
Na
natural use
water reservoirs
osady denne
przyrodnicze wykorzystanie
zbiorniki wodne
Opis:
The purpose of the present study was to analyse the contents of calcium, magnesium, potassium, and sodium in bottom sediments of two water reservoirs. The chemical composition of the bottom sediments and the ratios between the studied macronutrients were assessed, taking into account the nutritional requirements of plants, to determine whether the sediments were suitable for use in natural/agricultural settings. The study was conducted at two water reservoirs: the Brody Iłżeckie reservoir built on the Kamienna River in the Świętokrzyskie Province, and Zalew Zemborzycki, lake on the Bystrzyca River in the Lublin Province. Both bodies of water serve as flood water diversion and leisure facilities, and are also used, to a small extent, by the industry. They have a similar age and surface area. Bottom sediments were collected from the reservoirs a single time: 14 samples from Zalew Zemborzycki and 17 from Brody Iłżeckie. Samples were tested for total contents of Ca, Mg, K, and Na. The bottom sediments from Zalew Zemborzycki contained higher amounts of calcium, magnesium, and potassium than the material from Brody Iłżeckie. The values of ratios between K:Mg and K:(Ca + Mg) were similar for both reservoirs, and Ca:Mg and Ca:K were slightly more favourable for the sediments taken from Brody Iłżeckie.
Celem pracy była analiza zawartości wapnia, magnezu, potasu i sodu w osadach dennych dwóch zbiorników wodnych. Ocena składu chemicznego oraz stosunków pomiędzy badanymi makroelementami, uwzględniającymi wymagania żywieniowe roślin, były podstawą do określenia przydatności do przyrodniczego/rolniczego wykorzystania osadów dennych. Zadania prowadzono na dwóch obiektach – zbiorniku Brody Iłżeckie, w województwie świętokrzyskim, zbudowanym na rzece Kamienna, oraz Zalewie Zemborzyckim na rzece Bystrzycy, w województwie lubelskim. Oba zbiorniki pełnią funkcje przeciwpowodziowe i rekreacyjne, są też w niewielkim stopniu wykorzystywane przez przemysł. Są podobne pod względem wieku i powierzchni. Osady denne pobrano jednorazowo – 14 próbek z Zalewu Zemborzyckiego i 17 ze zbiornika Brody Iłżeckie. Analizowano w nich całkowitą zawartość Ca, Mg, K, Na. Osady denne z Zalewu Zemborzyckiego zawierały znacznie więcej wapnia, magnezu i potasu niż ze zbiornika Brody Iłżeckie. Stosunki analizowanych makroelementów były podobne (K:Mg; K:(Ca+Mg) w osadach obu zbiorników lub nieco korzystniejsze (Ca:Mg; Ca:K) w osadach zbiornika Brody Iłżeckie niż Zalewu Zemborzyckiego.
Źródło:
Journal of Water and Land Development; 2018, 38; 147-153
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological coal biogasification under laboratory conditions – biogas quantity and quality
Mikrobiologiczne zgazowanie węgla w warunkach laboratoryjnych – ilość i jakość biogazu
Autorzy:
Janiga, M.
Kapusta, P.
Kania, M.
Szubert, A.
Powiązania:
https://bibliotekanauki.pl/articles/1835272.pdf
Data publikacji:
2018
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
hard coal
brown coal
biogasification
microbiological consortium
węgiel kamienny
węgiel brunatny
biozgazowanie
konsorcjum mikrobiologiczne
Opis:
The paper presents results of experiments consisting in biogasification of hard and brown coals. The process was carried out in closed containers using a microbiological consortium. The influence of various factors on the amount and composition of released gas was checked. Various degasification conditions were tested: hard and brown coal, three different fractions (from 1.4 to 5 mm, from 0.16 to 1.4 mm, and fraction below 0.16 mm), various temperatures (4°C, 20°C, and 40°C), the experiment duration (1, 2, 3, and 4 weeks). Nitrogen and carbon dioxide were the prevailing gas components during the experiments.
W artykule przedstawiono wyniki eksperymentów polegających na biozgazowaniu węgli kamiennych i brunatnych. Proces ten był przeprowadzany w zamkniętych pojemnikach przy wykorzystaniu konsorcjum mikrobiologicznego. Sprawdzono wpływ różnych czynników na ilość i skład wydzielonego gazu. Przetestowane zostały różne warunki degazacyjne: węgiel kamienny i brunatny, trzy różne frakcje (od 1,4 do 5 mm, od 0,16 do 1,4 mm i frakcja poniżej 0,16 mm), różne temperatury (4°C, 20°C i 40°C), czas trwania eksperymentu (1 tydzień oraz 2, 3 i 4 tygodnie). W trakcie eksperymentów dominującymi składnikami gazu były azot i ditlenek węgla.
Źródło:
Nafta-Gaz; 2018, 74, 9; 647-654
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between parity and oxidative stress in high-performance Polish Holstein-Friesian cows after the peak of lactation
Zależność między wiekiem a stresem oksydacyjnym u wysokowydajnych krów rasy polskiej holsztyńsko-fryzyjskiej po szczycie laktacji
Autorzy:
Kapusta, A.
Kuczynska, B.
Puppel, K.
Powiązania:
https://bibliotekanauki.pl/articles/2869.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
cattle
Holstein-Friesian breed
cow
dairy cow
oxidative enzyme
oxidative stress
animal age
lactation
lactation peak
Opis:
Relationship between the parity and oxidative stress in high-performance Polish Holstein-Friesian cows after the peak of lactation. There are many factors, which may expose cows attacks of free radicals. The highest level of oxidative stress appears in the parturition period and at the peak of lactation. Therefore, the purpose of this study was to demonstrate the relationship between the parity and oxidative stress in high-performance Polish Holstein-Friesian (PHF) cows after the peak of lactation. Seventy PHF cows were selected for the experimentaccording to: age (35 primiparous and 35 multiparous in the second lactation) and stage of lactation (after the peak of lactation; at 61-90days in milk). Samples of milk and blood were collected in monthly intervals, from 61-90till >271 day of lactation. Study results demonstrated a significant impact of the parity and days in milk of cows on the formation of oxidative stress markers. The primiparous cows were characterized by lower levels of Glu Red and Gpx. The lowest level of oxidative stress was observed in the months after the peak to about 250 days of lactation. Based on study results, it can be concluded that that younger animals were more exposed to free radicals and oxidative stress.
Zależność między wiekiem a stresem oksydacyjnym u wysokowydajnych krów rasy polskiej holsztyńsko-fryzyjskiej po szczycie laktacji. Zdolność antyoksydacyjna to zdolność organizmu do usuwania reaktywnych form tlenu, które powodują stres oksydacyjny w organizmie. Istnieje wiele czynników, które mogą narazić krowy na ataki wolnych rodników. Najwyższy poziom stresu oksydacyjnego pojawia się w okresie porodu i w szczycie laktacji. Celem tego doświadczenia było wykazanie związku między wiekiem a poziomem stresu oksydacyjnym u wysokowydajnych krów rasy polskiej holsztyńsko-fryzyjskiej (PHF) po szczycie laktacji. Do eksperymentu wybrano 70 krów PHF według: wieku (35 pierwiastek i 35 wieloródek w drugiej laktacji) i fazy laktacji (po szczycie laktacji, między 61-90 dniem laktacji). Próbki mleka i krwi pobierano w miesięcznych odstępach, od 61-90 do > 271. dnia laktacji. Badania wykazały istotny wpływ wieku krów i fazy laktacji na kształtowanie się markerów stresu oksydacyjnego. Pierwiastki charakteryzowały się niższym poziomem Glu Red i Gpx. Najniższy poziom stresu oksydacyjnego wykazano w miesiącach po szczycie i do około 250. dnia laktacji. Na podstawie uzyskanych wyników można stwierdzić, że młodsze zwierzęta były bardziej narażone na działanie wolnych rodników i stres oksydacyjny.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science; 2018, 57[2]
1898-8830
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Effective Microorganisms Technology as a lake restoration tool - a case study of Muchawka Reservoir
Autorzy:
Sitarek, M.
Napiórkowska-Krzebietke, A.
Mazur, R.
Czarnecki, B.
Pyka, J.P.
Stawecki, K.
Olech, M.
Sołtysiak, S.
Kapusta, A.
Powiązania:
https://bibliotekanauki.pl/articles/1190178.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
restoration
eutrophication
remediation
EM
nutrients
Opis:
This paper presents the effects of an application of Effective Microorganisms (EM) technology in line with the method developed by Sitarek, thus evaluating its effectiveness as a tool in the biological restoration of a water body. In 2012-2013, EM was applied in Muchawka Reservoir situated in the town of Siedlce (eastern Poland). Analyses of water parameters and bottom sediments were carried out in 2011, before the EM technology was implemented and again in 2013-2015 after the EM application was completed. In spring 2011, the average total nitrogen (TN) content at the surface was 3.1 mg dm-3 while the total mineral nitrogen content equalled 0.893 mg dm-3. After the EM application was completed, in the summer of 2013, the TN content was on average 2.5 mg dm-3. The content of nitrates and nitrites in the summer of 2013 reached 1.20 mg dm-3 at the most. Lower levels of such forms of nitrogen were observed in 2013 and also in subsequent years at the bathing beach (site 1) and the hostel (site 3) than at the inflow (site 4). Likewise, the highest content of phosphates was recorded at the inflow site (4), being four -fold lower at the other sites (1, 3). The average content of TP before the EM technology was applied was 0.205 mg dm-3, whereas after the application of effective microorganisms it fell down to 0.189 mg dm-3 (2013-2015). Only slight changes of TSITP indicated that waters in Muchawka Reservoir were eutrophic. After EM was applied twice, no streaks, cyanobacterial scums or pollution at the bathing sites were visible. The bacteriological evaluation of the water samples was carried out by the County Branch of the State Sanitary Inspectorate in Siedlce. The bacteriological water quality was described as “excellent”. These findings suggest that the method developed by Sitarek, combined with probiotic preparations, could be a useful tool in the restoration of water bodies, but the conclusion requires further detailed verification.
Źródło:
Journal of Elementology; 2017, 22, 2; 529-543
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Effective Microorganisms Technology as a lake restoration tool - a case study of Muchawka Reservoir
Autorzy:
Sitarek, M.
Napiórkowska-Krzebietke, A.
Mazur, R.
Czarnecki, B.
Pyka, J. P.
Stawecki, K.
Olech, M.
Sołtysiak, S.
Kapusta, A.
Powiązania:
https://bibliotekanauki.pl/articles/961397.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
This paper presents the effects of an application of Effective Microorganisms (EM) technology in line with the method developed by Sitarek, thus evaluating its effectiveness as a tool in the biological restoration of a water body. In 2012-2013, EM was applied in Muchawka Reservoir situated in the town of Siedlce (eastern Poland). Analyses of water parameters and bottom sediments were carried out in 2011, before the EM technology was implemented and again in 2013-2015 after the EM application was completed. In spring 2011, the average total nitrogen (TN) content at the surface was 3.1 mg dm-3 while the total mineral nitrogen content equalled 0.893 mg dm-3. After the EM application was completed, in the summer of 2013, the TN content was on average 2.5 mg dm-3. The content of nitrates and nitrites in the summer of 2013 reached 1.20 mg dm-3 at the most. Lower levels of such forms of nitrogen were observed in 2013 and also in subsequent years at the bathing beach (site 1) and the hostel (site 3) than at the inflow (site 4). Likewise, the highest content of phosphates was recorded at the inflow site (4), being four -fold lower at the other sites (1, 3). The average content of TP before the EM technology was applied was 0.205 mg dm-3, whereas after the application of effective microorganisms it fell down to 0.189 mg dm-3 (2013-2015). Only slight changes of TSITP indicated that waters in Muchawka Reservoir were eutrophic. After EM was applied twice, no streaks, cyanobacterial scums or pollution at the bathing sites were visible. The bacteriological evaluation of the water samples was carried out by the County Branch of the State Sanitary Inspectorate in Siedlce. The bacteriological water quality was described as “excellent”. These findings suggest that the method developed by Sitarek, combined with probiotic preparations, could be a useful tool in the restoration of water bodies, but the conclusion requires further detailed verification.
Źródło:
Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the influence of composts made of sewage sludge, ash from power plant, and sawdust on floristic composition of plant communities in the plot experiment
Autorzy:
Wójcikowska-Kapusta, A.
Urban, D.
Baran, S.
Bik-Małodzińska, M.
Żukowska, G.
Pawłowski, A.
Czechowska-Kosacka, A.
Powiązania:
https://bibliotekanauki.pl/articles/207686.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
compost
sewage sludge
mine sulfur
Jeziórko
kompost
osady ściekowe
kopalnia siarki
Opis:
Floristic studies were conducted in 2011 and 2012 on the soil reclaimed using composts made of sewage sludge with the addition of various amounts of ash from power plant and sawdust. The experiment was carried out in 2002 on devastated soilless formation in the area of “Jeziórko” sulfur mine. Strongly acidic soilless formation (weak loamy sand) was reclaimed using post-flotation lime for de-acidification at the dose of 300 t/ha and compost in various variants: municipal sewage sludge, sewage sludge (80%) + ash (20%), sewage sludge (70%) + ash (30%), and sewage sludge (70%) + sawdust (30%). The compost was added at following doses of dry weight: 90, 180, and 270 t/ha. In the prepared plots, each with the area of 15 m2, a mixture of reclamation grasses was sown: Festuca pratensis –41.2%, Festuca rubra – 19.2%, Lolium perenne – 14.7%, Lolium multiflorum –12.4%, Dactylis glomerata – 6.5%, Trifolium pratense – 6%. The phyto-indication method was used to evaluate the impact of different ways of the soilless formation remediation on the habitat development. The assessment took into account following indicators: soil moisture, trophism, pH, organic matter content, resistance to salinity, and increased content of heavy metals. The largest number of species was found on plots where compost made of sewage sludge was used, while the smallest – on those reclaimed with sewage sludge compost with sawdust addition. In terms of habitat conditions, species preferring wet habitats typical of fresh soils, trophism of the subsoil corresponding to the abundant soils (eutrophic), neutral soil reaction, and subsoil with organic matter like in humus and mineral soils, dominated. The most favorable habitat conditions were found in plots reclaimed using sewage sludge compost.
Źródło:
Environment Protection Engineering; 2017, 43, 2; 129-141
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fe₂O₃ and Gd₂O₃ Nanoparticles Embedded in Mesoporous Silica: Magnetic Properties Comparison
Autorzy:
Kapusta, O.
Zeleňáková, A.
Hrubovčák, P.
Girman, V.
Zeleňák, V.
Powiązania:
https://bibliotekanauki.pl/articles/1031039.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.78.+s
47.11.Kb
75.75.Cd
75.40.Cx
78.20.-e
Opis:
Nanocomposite materials containing Fe₂O₃ and Gd₂O₃ nanoparticles with the same concentration were prepared by nanocasting method. At this procedure silica matrix serves as nanoreactor for growth of nanoparticles. Temperature and external dc field dependences of the magnetization both samples were compared. Composite containing Fe₂O₃ nanoparticles shows superparamagnetic behaviour with blocking temperature around 45 K. Otherwise, paramagnetic properties were observed for the sample with Gd₂O₃ (above 10 K). Additionally, due to free pores the silica matrix could serve as medium to increase the number of bonded water molecules. These properties together with appropriate magnetic characteristics make studied materials suitable for magnetic resonance imaging applications.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 860-862
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory tests for the application of nitrate-based inhibitor against H2S formation
Autorzy:
Turkiewicz, A.
Falkowicz, S.
Kapusta, P.
Powiązania:
https://bibliotekanauki.pl/articles/298657.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
hydrogen sulfide
nitrate-based treatment
permeability
reservoir rock
formation water
Opis:
This article discusses two series of the efficiency tests of nitrate-based inhibitor in the contaminated media. Nitrate-based treatments are the new methods of biogenic hydrogen sulfide elimination in the reservoir conditions. The first series concerned the tests of the contaminated medium, i.e. the mixture of formation water and sulfate-reducing bacteria suspension. The second series included the results of tests on natural formation water (without additional microbiological contamination). Moreover, a series of tests was performed in order to evaluate the influence of the tested material on reservoir rock samples represented by sandstone. The results of tests were presented in the form of tables and the formulated conclusions may be in the future useful for the oil and gas industry.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 1; 231-241
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetocaloric effect in Gd₂O₃@SiO₂ nanocomposite
Autorzy:
Zeleňáková, A.
Hrubovčák, P.
Berkutova, A.
Kapusta, O.
Zeleňák, V.
Powiązania:
https://bibliotekanauki.pl/articles/1054708.pdf
Data publikacji:
2017-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.Sg
81.05.Rm
75.20.Ck
75.75.Fk
Opis:
Nanocomposite consisting of Gd₂O₃ nanoparticles embedded in periodical porous silica matrix was investigated with respect to its magnetocaloric properties. Series of field (up to 5 T) dependence of magnetization data were recorded in temperature range 2-52 K. The data were subsequently processed employing Maxwell relation in order to calculate magnetic entropy change (Δ S_M) of the system. Examined nanocomposite exhibited reasonably high value of Δ S_M ≈ 29 J/(kg K) at maximal field change 5 T at the temperature of 2 K which suggests that this material could be feasible for cryomagnetic refrigeration applications.
Źródło:
Acta Physica Polonica A; 2017, 131, 4; 810-812
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of the injection frequency on the urea selective catalytic reduction systems performance
Autorzy:
Rogóż, R.
Jaworski, P.
Kapusta, Ł. J.
Teodorczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/133789.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
AVL FIRE
selective catalytic reduction
uniformity index
urea water solution
UWS
wall-film
selektywna redukcja katalityczna
roztwór mocznika
Opis:
This study presents the influence of the UWS injection frequency on a close coupled SCR systems performance. The investigation was performed with the CFD tool AVL Fire. In the paper the analysis of four different UWS injection frequencies in the three different operating points of diesel engine was shown. The assessments of the system performance was referred to the ammonia distribution at catalyst intake and wall film formation inside the investigated geometry, as these are considered as crucial in such a configuration. The results showed that injection frequency affects both factors on different level depending from the flow conditions. In addition, the wall film crystallization risk was discussed basing on the obtained wall film characteristics.
Źródło:
Combustion Engines; 2017, 56, 3; 73-77
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 83

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies