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Wyszukujesz frazę "Musial, O." wg kryterium: Autor


Tytuł:
Wykorzystanie techniki obliczeniowej do modelowania bezpiecznej pracy przemysłowej komory grzewczej
Application of computational techniques to model the safe operation of industrial heating chamber
Autorzy:
Zajemska, M.
Radomiak, H.
Musiał, D.
Poskart, A.
Eremin, A. O.
Jarnecka, M.
Chamara, A.
Śpiewak, K.
Rajca, P.
Kocyba, M.
Janicki, M.
Boroń, K.
Tematy:
zagrożenie
tlenek węgla
pożar
modelowanie
chemkin
komora grzewcza
hazard
carbon monoxide
fire
modeling
heating chamber
Pokaż więcej
Wydawca:
Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
Powiązania:
https://bibliotekanauki.pl/articles/103696.pdf  Link otwiera się w nowym oknie
Opis:
Szczególnym rodzajem zagrożeń możliwych do wystąpienia na terenie wielu zakładów przemysłowych (np. na terenie huty) są zagrożenia związane z obecnością niebezpiecznych substancji, w tym gazów palnych, takich jak gaz ziemny czy gaz koksowniczy. Niewłaściwe spalanie tych gazów w komorach grzewczych może być bezpośrednią przyczyną niekontrolowanego uwalniania się szkodliwych dla zdrowia i życia substancji, takich jak tlenek węgla czy niedopalone węglowodory. Sytuacja jest szczególnie niebezpieczna w przypadku nadciśnienia w komorze grzewczej, ponieważ wiąże się to z „wybijaniem spalin”, tzn. uwalnianiem się produktów spalania paliwa na zewnątrz, co może być przyczyną zatrucia organizmu. Ze względu na powyższe, w niniejszym artykule przedstawiono możliwości wykorzystania techniki obliczeniowej do prognozowania zagrożeń związanych ze spalaniem paliwa gazowego w komorze grzewczej, a mianowicie w piecu przepychowym do nagrzewania wsadu metalowego. Zaproponowana metoda przewidywania składu chemicznego spalin umożliwia odpowiednią kontrolę procesu spalania, zmierzającą do zmniejszenia negatywnych skutków zarówno środowiskowych, jak i zdrowotnych.
A special type of threats possible to occurre in many industrial plants (eg. at the smelter) are risks associated with the presence of hazardous substances, including flammable gases, such as natural gas and coke oven gas. Improper combustion of these gases in the heating chambers may be a direct cause of the uncontrolled release of harmful substances for health and life, such as carbon monoxide and unburned hydrocarbons. The situation is particularly dangerous in the case of overpressure in the heating chamber, because it involves the "knocking out of flue gas", i.e. release of combustion products on the outside, which can cause poisoning of the human body. Due to the above, in this paper the possibility of using computer technology to predict the risks associated with the combustion gas in the heating chamber, namely in the pusher furnace to heat the metal charge was presented. The proposed method of predicting the chemical composition of flue gas allows to proper control of the combustion process, in order to reduce the negative effects of both environmental and health problems.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clinical characteristics of Polish patients with ANCA-associated vasculitides-retrospective analysis of POLVAS registry
Autorzy:
Madej, M.
Wisłowska, M.
Wawrzycka-Adamczyk, Katarzyna
Dębska-Ślizień, A.
Milchert, M.
Rowaiye, O.
Storoniak, H.
Głuszko, P.
Tłustochowicz, W.
Jakuszko, K.
Hawrot-Kawecka, A.
Masiak, A.
Musiał, Jacek
Jeleniewicz, R.
Czuszyńska, Z.
Brzosko, M.
Kur-Zalewska, J.
Zdrojewski, Z.
Wójcik, Krzysztof
Sznajd, J.
Kucharz, E.
Włudarczyk, Anna
Klinger, M.
Majdan, M.
Opis:
Objective Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are rare small to medium-size vessel systemic diseases. As their clinical picture, organ involvement, and factors influencing outcome may differ between countries and geographical areas, we decided to describe a large cohort of Polish AAV patients coming from several referral centers-members of the Scientific Consortium of the Polish Vasculitis Registry (POLVAS). Methods We conducted a systematic multicenter retrospective study of adult patients diagnosed with AAV between Jan 1990 and Dec 2016 to analyze their clinical picture, organ involvement, and factors influencing outcome. Patients were enrolled to the study by nine centers (14 clinical wards) from seven Voivodeships populated by 22.3 mln inhabitants (58.2% of the Polish population). Results Participating centers included 625 AAV patients into the registry. Their distribution was as follows: 417 patients (66.7%) with GPA, 106 (17.0%) with MPA, and 102 (16.3%) with EGPA. Male-to-female ratios were almost 1:1 for GPA (210/207) and MPA (54/52), but EGPA was twice more frequent among women (34/68). Clinical manifestations and organ involvement were analyzed by clinical phenotype. Their clinical manifestations seem very similar to other European countries, but interestingly, men with GPA appeared to follow a more severe course than the women. Fifty five patients died. In GPA, two variables were significantly associated with death: permanent renal replacement therapy (PRRT) and respiratory involvement (univariate analysis). In multivariate analysis, PRRT (OR = 5.3; 95% confidence interval (CI) = 2.3–12.2), respiratory involvement (OR = 3.2; 95% CI = 1.06–9.7), and, in addition, age > 65 (OR = 2.6; 95% CI = 1.05–6.6) were independently associated with death. In MPA, also three variables were observed to be independent predictors of death: PRRT (OR = 5.7; 95% CI = 1.3–25.5), skin involvement (OR = 4.4; 95% CI = 1.02– 19.6), and age > 65 (OR = 6.3; 95% CI = 1.18–33.7). Conclusions In this first multicenter retrospective study of the Polish AAV patients, we have shown that their demographic characteristics, disease manifestations, and predictors of fatal outcome follow the same pattern as those from other European countries, with men possibly suffering from more severe course of the disease.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Data quality and patient characteristics in European ANCA-associated vasculitis registries : data retrieval by federated querying
Autorzy:
Wójcik, Krzysztof
Mohammad, Aladdin J
Gisslander, Karl
Lamprecht, Peter
Lichołai, Sabina
Rutherford, Matthew
Basu, Neil
O’Sullivan, Declan
Little, Mark A
Tesi, Michelangelo
Yaman, Beyza
Hruskova, Zdenka
Wandrei, Dagmar
Hederman, Lucy
Terrier, Benjamin
Dradin, François
Aslett, Louis
Segelmark, Mårten
Straka, Richard
Tesar, Vladimir
Musiał, Jacek
Scott, Jennifer
Kardaoui, Hicham
Puechal, Xavier
Vaglio, Augusto
White, Arthur
Opis:
Objectives. This study aims to describe the data structure and harmonisation process, explore data quality and define characteristics, treatment, and outcomes of patients across six federated antineutrophil cytoplasmic antibody-associated vasculitis (AAV) registries. Methods. Through creation of the vasculitis-specific Findable, Accessible, Interoperable, Reusable, VASCulitis ontology, we harmonised the registries and enabled semantic interoperability. We assessed data quality across the domains of uniqueness, consistency, completeness and correctness. Aggregated data were retrieved using the semantic query language SPARQL Protocol and Resource Description Framework Query Language (SPARQL) and outcome rates were assessed through random effects meta-analysis. Results. A total of 5282 cases of AAV were identified. Uniqueness and data-type consistency were 100% across all assessed variables. Completeness and correctness varied from 49%–100% to 60%–100%, respectively. There were 2754 (52.1%) cases classified as granulomatosis with polyangiitis (GPA), 1580 (29.9%) as microscopic polyangiitis and 937 (17.7%) as eosinophilic GPA. The pattern of organ involvement included: lung in 3281 (65.1%), ear-nose-throat in 2860 (56.7%) and kidney in 2534 (50.2%). Intravenous cyclophosphamide was used as remission induction therapy in 982 (50.7%), rituximab in 505 (17.7%) and pulsed intravenous glucocorticoid use was highly variable (11%–91%). Overall mortality and incidence rates of end-stage kidney disease were 28.8 (95% CI 19.7 to 42.2) and 24.8 (95% CI 19.7 to 31.1) per 1000 patient-years, respectively. Conclusions. In the largest reported AAV cohort-study, we federated patient registries using semantic web technologies and highlighted concerns about data quality. The comparison of patient characteristics, treatment and outcomes was hampered by heterogeneous recruitment settings.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł

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