Autor: Schneider, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Porównanie nośności styku śrubowego doczołowego sprężonego według eurokodu i PN-B
Comparative analysis of the moment resistance of preloaded end-plate bolted connection according to Eurocodes and Polish standards (PN-B)
Autorzy:: Szymczak-Graczyk, A.
Schneider, D.
Powiązania:: https://bibliotekanauki.pl/articles/163593.pdf
Data publikacji:: 2017
Wydawca:: Polski Związek Inżynierów i Techników Budownictwa
Tematy:: złącze śrubowe
złącze doczołowe
złącze sprężone
nośność
przykład obliczeniowy
PN-EN 1993-1-8:2006
PN-90/B-03200
porównanie
bolted joint
butt joint
post-tensioned joint
load bearing capacity
calculation example
comparison
Opis:: W artykule przedstawiono wyniki obliczeń sprężonego styku śrubowego według eurokodu oraz normy PN. Zgodnie z normą europejską dokonano sprawdzenia nośności połączenia w pierwszym stanie granicznym na rozciąganie i przeciąganie styku, zaś według normy PN obliczono nośność w pierwszym stanie granicznym zerwania śrub oraz nośność w drugim stanie granicznym rozwarcia styku. Porównanie otrzymanych wyników pokazuje różnice w nośności styku w zależności od przyjętego toku postępowania zawartego w normach.
The article presents the calculation results of prestressed end-plate bolted connection according to Eurocode and Polish Standard. According to the European norm there were verified the tensile resistance and load bearing capacity of the contact area under the first ultimate limit state, whereas the Polish standard was used to calculate the resistance of bolt shank fracture under the first ultimate limit state and the resistance of spacing under the second ultimate limit state. Comparison of the obtained results demonstrates that there is a difference in the resistance of spacing resulting from the adopted course of action included in particular codes and standards.
Źródło:: Przegląd Budowlany; 2017, 88, 9; 111-114
0033-2038
Pojawia się w:: Przegląd Budowlany
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Relationship between antibiotic resistance, biofilm formation, genes coding virulence factors and source of origin of Pseudomonas aeruginosa clinical strains
Autorzy:: Ratajczak, M.
Kamińska, D.
Nowak-Malczewska, D.M.
Schneider, A.
Dlugaszewska, J.
Powiązania:: https://bibliotekanauki.pl/articles/28762758.pdf
Data publikacji:: 2021
Wydawca:: Instytut Medycyny Wsi
Źródło:: Annals of Agricultural and Environmental Medicine; 2021, 28, 2; 306-313
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Efficiency of a 252Cf source in normal or in B-10 enriched lymphocytes evaluated by SCGE assay, classical cytogenetics and FISH technique
Autorzy:: Cebulska-Wasilewska, A.
Niedźwiedź, W.
Florjan, D.
Schneider, K.
Kopec, M.
Kreft, A.
Powiązania:: https://bibliotekanauki.pl/articles/147547.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: BNC reaction
BSH o 252Cf
DNA and chromosomal damage
FISH
lymphocytes
Opis:: Biological effectiveness of a californium-252 source was evaluated after irradiations in vitro of normal or pretreated cells with compound enriched in the B-10 ion (Na210B12H11SH also known as BSH) in order to check the possibility of any enhancement effect due to the process of boron neutron capture. Peripheral blood lymphocytes were used as a model for human cells. Human blood samples or isolated lymphocytes were irradiated with the isotopic source of 252Cf, at the Faculty of Physics and Nuclear Techniques at the University of Mining and Metallurgy, Kraków, (both the neutron source and the samples were placed in an "infinite" polyethylene block). DNA and chromosomal damage were studied to compare the biological effectiveness of irradiation. Single cell gel electrophoresis also known as the Comet assay was done to investigate the DNA damage. Classical cytogenetic analysis was applied to assess the frequencies of unstable aberrations (dicentrics, rings and acentric fragments). To evaluate the frequencies of stable aberrations the fluorescence in situ hybridisation (FISH) with probes for chromosomes 1, 4 (14,3% of the whole genome) was performed. Linear (or close to linear) increases with radiation doses were observed for the DNA damage and aberration frequencies in lymphocytes both untreated or pretreated with BSH. Levels of translocations evaluated for the whole genome were comparable with the frequencies of dicentrics and rings. No significant differences were detected due to radiation dose in the frequencies of sister chromatid exchanges (SCE) detected in the second mitosis. Statistically no significant differences were observed in various biological end-points between normal or boron pre-treated cells.
Źródło:: Nukleonika; 2001, 46, 2; 41-49
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Interference Effects in T-MOKE Spectra of Fe Thin Films at the 3p Edges - Theory and Experiment
Autorzy:: Legut, D.
Tesch, M.
Oppeneer, P.
Mertins, H.
Jansing, Ch.
Gilbert, M.
Gaupp, A.
Bürgler, D.
Schneider, C.
Powiązania:: https://bibliotekanauki.pl/articles/1386641.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.Gw
78.20.Ls
78.70.Ck
74.20.Pq
Opis:: We present combined first-principle calculations and experimental results of the transversal magneto-optical Kerr effect (T-MOKE) of thin Fe films across the 3p edges using linearly polarized synchrotron radiation. We show that the experimental T-MOKE spectra at the 3p edges of Fe exhibit clear signals that are strongly influenced by interference effects. Ab initio calculated T-MOKE asymmetry spectra confirm the importance of interference effects. The comparison of experimental with calculated spectra reveals some differences that we attribute to metal/metal interface roughness that is not taken into account in the calculations.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 466-468
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Endotoxin concentration in modern animal houses in Southern Bavaria
Autorzy:: Schierl, R
Heise, A.
Egger, U.
Schneider, F.
Eichelser, R.
Neser, S.
Nowak, D.
Powiązania:: https://bibliotekanauki.pl/articles/50088.pdf
Data publikacji:: 2007
Wydawca:: Instytut Medycyny Wsi
Tematy:: pig
animal house
Bavaria
endotoxin concentration
cattle
modern house
poultry
dust
endotoxin
Opis:: Agricultural work, particularly livestock farming, is considered to be a notable risk factor for occupational diseases. Endotoxin as a major component of organic dust causes adverse health effects of the airways among farmers. Endotoxin concentrations in airborne and settled dust were measured in modern, naturally ventilated animal houses for different species. Median values of airborne inhalable endotoxin ranged from 16.9 EU/m3 for dairy cattle, 557.9 EU/m3 for beef cattle, 668.7 EU/m3 for pigs, 463.2 EU/m3 for laying hens, to 1,902 EU/m3 for turkeys. The endotoxin levels in settled dust followed the same pattern as the airborne samples. The concentrations were lower than in previous studies, but the proposed Dutch endotoxin threshold (50 EU/m3) was exceeded in most cases. Thus, endotoxin levels in modern animal houses still give concern for health and further reduction of endotoxin exposure in animal houses is desirable.
Źródło:: Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki