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Wyszukujesz frazę "Kuropka, J." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Odazotowanie spalin z elektrociepłowni
Autorzy:
Kuropka, J.
Powiązania:
https://bibliotekanauki.pl/articles/236796.pdf
Data publikacji:
1999
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
odazotowanie spalin
elektrociepłownie
redukcja selektywna tlenków
oczyszczanie spalin
Opis:
The objective of the reported study wasto investigate theselective non-catalytic reduction (SNCR) of nitrogen oxides via an industrial FGD system operated by a heat and power station. Assessed were the following issues: the effect of a calcium hydroxide—urea mixture, or a calcium carbonate-urea mixture (added to the combustion zone), on nitrogen oxide concentrations in the flue gas, the effect of the Ca/S ratio on the efficiency of the FGD process (depending on the sorbent used}, the effect of the reagent mixture/nitrogen oxide ratio on the denitrogenation of the flue gas, and the effect of boiler loading on the denitrogenation of the flue gas. A major advantage of theSNCR method is that it enables a co-removal of sulphur dioxide and nitrogen oxides from the flue gases of a heat and power station.
Źródło:
Ochrona Środowiska; 1999, 1; 23-24
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Redukcja niekatalityczna tlenków azotu w spalinach z kotłów rusztowych
Noncatalytic reduction of nitrogen oxides in flue gases escaping from boilers
Autorzy:
Kuropka, J.
Powiązania:
https://bibliotekanauki.pl/articles/237668.pdf
Data publikacji:
2001
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
spalanie paliw
spaliny z kotłów rusztowych
odazotowanie spalin
tlenki azotu
redukcja niekatalityczna
Opis:
The potential for an enhancement of the flue gas denitrification process was analyzed, particular consideration being given to nitrogen oxides removal within the burning zone. Examined was the contribution of two major factors - that of the urea/nitrogen oxide molar ratio to the volume of the flue gas emitted by the boiler, and that of the urea solution concentration to the efficiency of the denitrification process. It was found that, with a 10% and 40% urea solution and with a urea/nitrogen ratio which varied from 1.0 to 3.0, the efficiency of denitrification ranged between 30 and 70%.
Źródło:
Ochrona Środowiska; 2001, 2; 25-27
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emisja tlenku diazotu z procesów spalania paliw w kotłach pyłowych i fluidalnych
Emission of nitrous oxide from combustion in pulverized-fuel boilers and fluidized boilers
Autorzy:
Kuropka, J.
Powiązania:
https://bibliotekanauki.pl/articles/237193.pdf
Data publikacji:
1998
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
tlenek diazotu
spalanie paliw
kotły pyłowe
kotły fluidalne
Opis:
The objective of the study was to analyze the emission of N2O during selective non-catalytic reduction of nitrogen oxides( using ammonia and urea as reducing agents) with co-removal of SO2 and NOx from the flue gases leaving pulverized-huel boilers and fluidized boilers. The concentrations of air-borne N2O were not found to create hazards to human beings ( no strict environmental regulations pertaining to that gas had been issued so far ). However,there is much likelihood that such hazards will appear in the future,if we take into account the depletion of ozone in the stratosphere and the ever increasing greenhouse effect.
Źródło:
Ochrona Środowiska; 1998, 4; 33-36
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odsiarczanie spalin według suchej technologii FHW
Flue gas desulphurization (FGD) by the FHW method
Autorzy:
Kuropka, J.
Kubisa, R.
Powiązania:
https://bibliotekanauki.pl/articles/237021.pdf
Data publikacji:
2000
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
odsiarczanie spalin
technologia odsiarczania spalin
technologia sucha FHW
produkty odsiarczania spalin
sorbent wapniowy
wodorotlenek wapnia
węglan wapnia
Opis:
The paper includes a detailed account of available FGD methods. In this account, special consideration is given to new, competitive, technique offered under the brand name of FHW technology. This is a dry process which involves injection of wetted sorbent (not wetted flue gas) into the reactor. Experiments have shown that in Poland the FHW technology can be of utility when applied for the purification on flue gases from boiler rooms or heat and power stations.
Źródło:
Ochrona Środowiska; 2000, 1; 31-34
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermographic evaluation of experimental pleurisy induced by carrageenan and modified by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)
Autorzy:
Kuropka, Piotr
Dobrzyński, Maciej
Tarnowska, Małgorzata
Dymarek, Robert
Leśków, Anna
Wiglusz, Rafał J.
Powiązania:
https://bibliotekanauki.pl/articles/307203.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
termografia
zapalenie opłucnej
TCDD
thermography
pleurisy
rats
Opis:
The use of a thermal imaging camera may improve the detection of changes during inflammation process propagation in animals and humans that could be caused by numerous factors like 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Methods: Rats were randomised and divided into two groups, C group, in which experimental pleural inflammatory reaction was evoked and TCDD group, in which a single dose was applied 21 days before administration of 1% carrageenan solution. Infrared thermograms were taken with a microbolometer thermal imaging camera MobIR M8. The surface temperature distribution was measured in three randomly selected animals. Results: In the analysis of correlation we found negative results between both groups. In the C group, the pleurisy was developed and allowed to develop freely. It can be observed that both the average maximum temperature and the average minimum temperature were the highest after 48 hours after injection of the 1% carrageenan in solution. In TCDD group, lowered temperature in all days of experiments was noted. However, the increase of temperature after carrageenan injection was similar. The main changes observed in the lungs were oedema, hyperemia with clot formation and changes in lung structure. Several proliferative changes in the lungs were noted. Moreover, increased number of goblet cells as well and increased release of the surfactant was observed. The activation of fibroblasts and synthesis of collagen fibers was noted. Conclusions: The TCDD administration results in the reduction of superficial temperature, which is easily detectable by thermal imaging camera that can be effectively used in monitoring the course of inflammation.
Źródło:
Acta of Bioengineering and Biomechanics; 2019, 21, 3; 23-29
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The experimental osteoporosis in sheep - clinical approach
Autorzy:
Kielbowicz, Z.
Piatek, A.
Biezynski, J.
Skrzypczak, P.
Kuropka, P.
Kuryszko, J.
Nikodem, A.
Kafarski, P.
Pezowicz, C.
Powiązania:
https://bibliotekanauki.pl/articles/30991.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The implementation of new methods of oseoporotic therapy requires tests on an animal model. One of the best is the sheep, whose numerous advantages over other models are described in the literature. The aim of this study was induction of osteoporosis using steroids and ovariorectomy methods in sheep and description of the change in parameters with regard to healthy sheep. The study was performed on female „merino” breed sheep divided into three groups: Negative control (NC) healthy animals, positive control (PC) ovariorectomised animals and steroid group (SC) where methylprednisolone was implemented. Blood tests, diagnostic arthroscopy, quantitative computed tomography and X-Ray micro-tomography of bone were carried out. Blood tests revealed a decreased level of estrogens, progesterone and increased parathormone and cortisol levels in the SC group. A decrease in bone turnover markers and an increase in bone resorption markers in all groups were also noted. Diagnostic arthroscopy revealed osteoarthrosis in PC and SC groups. Radiological density tests showed a slight decrease in PC and NC groups whereas there was more than a triple decrease in SC. Results obtained from microCT showed quickly developing osteoporosis in the SC group, which is reflected in numerous parameters analysed in this study. The best effects for osteoporosis induction were obtained using ovariorectomised sheep with methylprednisolone injections.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental osteoporosis in sheep - mechanical and histological approach
Autorzy:
Kielbowicz, Z.
Piatek, A.
Kuropka, P.
Mytnik, E.
Nikodem, A.
Biezynski, J.
Skrzypczak, P.
Pezowicz, C.
Kuryszko, J.
Reichert, P.
Powiązania:
https://bibliotekanauki.pl/articles/31160.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The implementation of new methods of osteoporotic therapy requires tests on animal model. The use of sheep as model has numerous advantages over other animals. The aim of this study was to describe the change in parameters in sheep with osteoporosis induced using steroids and ovariorectomy methods as opposed to the parameters in healthy sheep. The study was performed on female „merinos” breed sheep divided into the three groups: negative control (NC) – healthy animals, positive control (PC) – ovariorectomized animals and steroid control group (SC) – in which methylprednisolone was administered. This paper presents histological and ultrastructural examination with mechanical comparative tests for force/strength values as well as indentation tests of joint cartilage. The obtained results confirm the loss of bone mass associated with mineral composition content in bones, which has an influence on bone strength.
Źródło:
Polish Journal of Veterinary Sciences; 2016, 19, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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