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Wyświetlanie 1-15 z 16
Tytuł:
Resilience of nuclear plants in case of hazards
Autorzy:
Berg, H. P.
Krauß, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069280.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
resilience
internal hazards
external hazards
combination of events
safety assessment
Opis:
Internal and external hazards analysis methods have been used recently to evaluate operating nuclear power plants (NPP) and to identify the resilience of NPP in case of hazards and potential needs for modification of plant systems and procedures as well as to support design of new plants The external hazards risk contribution has been modeled in many NPP PSA (at least for some external hazards) over the last decade, including events occurring during shutdown and low power operations. Recently, a revision of the German nuclear safety regulations has been successfully completed and these regulations entitled “Safety Requirements for Nuclear Power Plants”, also requiring a detailed investigation of internal and external hazards and combinations of different hazards applying deterministic and probabilistic safety assessment methods.
Źródło:
Journal of Polish Safety and Reliability Association; 2015, 6, 1; 7--14
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hazard assessment in case of external flooding
Autorzy:
Iancu, A.
Berg, H. P.
Krauß, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069098.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
external hazards
flooding
safety assessment
modelling
applications
nuclear power plants
Opis:
Risks relating to external hazards, either natural or man-made, have to be taken into consideration in the design of nuclear and other industrial facilities. These risks have to be studied to guarantee the availability and efficiency of safety functions which, e.g. in the case of power reactors, enable a safe shutdown, maintain the reactor in a safe shutdown state, ensure the residual heat removal and the containment of radioactive products. With a view to design protection against risks related to external hazards, these hazards have to be assessed in an appropriate manner. The methods used can be either deterministic or probabilistic. In both cases, the method strongly relies on observations (e.g. flood records) that are processed to define a maximum event for the respective facility design. Moreover, the validity of these records over a certain time frame like 100 years has to be checked. Coping with external hazards such as flooding in the future requires an in-depth assessment taking into account new data, further developed methodologies and criteria. Some of these ideas, developments and applications are provided.
Źródło:
Journal of Polish Safety and Reliability Association; 2016, 7, 1; 87--98
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectroscopy of 2-aminopurine: An MCSCF Study
Autorzy:
Rachofsky, E. L.
Ross, J. B. A.
Krauss, M.
Osman, R.
Powiązania:
https://bibliotekanauki.pl/articles/1992724.pdf
Data publikacji:
1998-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
31.15.Ar
31.50.+w
33.20.Lg
33.50.Dq
Opis:
2-aminopurine is a highly fluorescent isomer of adenine that can be incorporated into DNA as a probe of structure, dynamics, and protein-DNA interactions. Interpretation of the fluorescence of 2-aminopurine in DNA requires a model of the electronic structure of this fluorophore in its ground and excited states. To this end, electronic structures and energies of the ground and lowest singlet excited states of 2-amino-9-methylpurine were calculated by the multiconfiguration self-consistent field method supplemented by multiconfiguration perturbation theory. The molecular geometry was optimized in both of these electronic states to permit investigation of both electronic excitation and fluorescence emission. The predicted energies and transition dipoles were in good agreement with experiment. The permanent molecular dipole of 2-amino-9-methylpurine increased upon excitation, suggesting that both the absorption and emission spectra should shift to slightly lower energies in polar solvents. The anomalous spectral shifts observed in water suggest that 2-aminopurine undergoes hydrogen bonding that better stabilizes the ground state than the excited state. From the calculated electrostatic potentials of these two states, the position at which this hydrogen bond forms was predicted. These results form a basis for understanding the excited states and possible intermolecular interactions of 2-aminopurine in DNA.
Źródło:
Acta Physica Polonica A; 1998, 94, 5-6; 735-748
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Duration of juvenile period in diameter growth of trees selected coniferous species
Długość młodocianego okresu przyrostu na grubość drzew wybranych gatunków iglastych
Autorzy:
Czajka, M.
Fabisiak, E.
Krauss, A.
Powiązania:
https://bibliotekanauki.pl/articles/8192.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2015, 92
1898-5912
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation framework and thorough analysis of the impact of barrier lowering on the current in SB-MOSFETs
Autorzy:
Schwarz, M.
Calvet, L. E.
Snyde, J. P.
Krauss, T.
Schwalke, U.
Kloes, A.
Powiązania:
https://bibliotekanauki.pl/articles/397793.pdf
Data publikacji:
2017
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
2D Poisson equation
device modeling
double-gate MOSFET
field emission
framework
Schottky barrier
Synopsys
TCAD
thermionic emission
thermionic current
tunneling current
dwuwymiarowe równanie Poissona
modelowanie elementów elektronicznych
dwubramkowy tranzystor MOS
emisja polowa
bariera Schottky'ego
emisja termoelektronowa
prąd termoelektronowy
prąd tunelowy
Opis:
In this paper we present a simulation framework to account for the Schottky barrier lowering models in SBMOSFETs within the Synopsys TCAD Sentaurus tool-chain. The improved Schottky barrier lowering model for field emission is considered. A strategy to extract the different current components and thus accurately predict the on- and off-current regions are adressed. Detailed investigations of these components are presented along with an improved Schottky barrier lowering model for field emission. Finally, a comparison for the transfer characteristics is shown for simulation and experimental data.
Źródło:
International Journal of Microelectronics and Computer Science; 2017, 8, 2; 72-79
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of lifestyle of young adults in the rural and urban areas
Autorzy:
Suliburska, J.
Bogdanski, P.
Pupek-Musialik, D.
Glod-Nawrocka, M.
Krauss, H.
Piatek, J.
Powiązania:
https://bibliotekanauki.pl/articles/51736.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Opis:
An unhealthy lifestyle among young people is a serious and often unnoticed problem. It seems that there are differences in the lifestyle of young people from rural and urban areas. The objective of this study was to compare eating habits and physical activity of young adults according to their body weight, gender and place of residence. The study involved a group of 18-year-olds from rural and urban environments. The study included 50% girls and 50% of boys in each group, selected by simple random sampling (SRS). The author-designed questionnaire evaluating the nutrition habits and physical activity was provided. It was found that in the group of boys the value of BMI was markedly higher than in girls. Compared to the normal weight, young overweight adults ate meals more frequency, the majority preferred meat dishes, more often ate under the stress, and had lower physical activity. It was found that gender had a significant impact on the studied parameters. The girls ate meals more frequent during the day, the majority preferred fruit and vegetable, but had lower physical activity than the boys. It was found that the young adults from the rural area preferred fast food and frequently ate sweets. Compared to the subjects from the urban environment, the young adults living in the countryside consumed fewer meals daily and were more physical active. About a half of the studied adults were not satisfied with their weight, and nearly 40% of the subjects in both groups admitted that they had made effective or ineffective attempts to lose weight. The lifestyles of young people in rural and urban areas were slightly different; however, dietary factors which predispose to weight gain were comparable in both groups. In the rural areas, the most frequent nutritional faults were a preference for fast food, frequent consumption of sweets, and few meals during the day. A positive aspect of the lifestyle of young people in the rural areas was a relatively high level of physical activity and the small effect of stress on excessive consumption.
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The viability and intestinal epithelial cell adhesion of probiotic strain combination - in vitro study
Autorzy:
Piatek, J.
Gibas-Dorna, M.
Olejnik, A.
Krauss, H.
Wierzbicki, K.
Zukiewicz-Sobczak, W.
Glowacki, M.
Powiązania:
https://bibliotekanauki.pl/articles/52041.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Opis:
To be effective, probiotic bacteria must exhibit a number of functional characteristics, including the resistance to gastric acidity and the ability to adhere to the intestinal epithelium. In this study, we examined in vitro the viability of lactic acid bacteria (LAB) combination after exposure to low pH, and the adhesion of LAB to Caco-2 cells during coincubation of 9 bacterial strains. To test bacterial viability, 6 commercially available products were incubated in 0.1 N HCl at pH 1.2 for 60 min. The greatest growth inhibition was noted for the non-capsulated product containing the Lactobacillus rhamnosus strain (log reduction of CFU = 6.4), and the best survival observed for the product containing 9 bacterial strains, equipped with a modern capsule made according to the Multi-Resistant Encapsulation technology (log reduction of CFU = 0.1). In the adhesion experiment, the combination of 9 bacterial strains was added to 17-day-old Caco-2 cell culture for 90 min. The greatest efficiency of adhesion was observed for the inoculum containing 5.5 × 108 CFU/mL/9.6 cm2 of Caco-2 and the dose of probiotic bacteria of 190 cells per one Caco-2 cell. As a result, approximately 157 bacterial cells adhered to one Caco-2 cell. The results indicate that the combination of 9 bacterial strains in the examined product is characterized as highly adhesive.
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of ghrelin, leptin and insulin in foetal development
Autorzy:
Warchol, M.
Krauss, H.
Wojciechowska, M.
Opala, T.
Pieta, B.
Zukiewicz-Sobczak, W.
Kupsz, J.
Grochowalska, A.
Powiązania:
https://bibliotekanauki.pl/articles/51378.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2014, 21, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences in deformity and bracing-related stress between rural and urban area patients with adolescent idiopathic scoliosis treated with a Cheneau brace
Autorzy:
Misterska, E.
Glowacki, M.
Ignys-O'Byrne, A.
Latuszewska, J.
Lewandowski, J.
Ignys, I.
Krauss, H.
Piatek, J.
Powiązania:
https://bibliotekanauki.pl/articles/50923.pdf
Data publikacji:
2011
Wydawca:
Instytut Medycyny Wsi
Tematy:
deformity
bracing-related stress
rural area
urban area
patient
adolescent
idiopathic scoliosis
treatment
Cheneau brace
Źródło:
Annals of Agricultural and Environmental Medicine; 2011, 18, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Increased prevalence of overweight and obesity among Polish children age 14-18 between 2001 and 2013 from Krakow, Poland - a cross-sectional study
Autorzy:
Dyląg, K.A.
Klimek-Piotrowska, W.
Koziej, M.
Hołda, M.K.
Piątek, K.
Wszołek, K.
Tyszka, A.
Kmiotek, E.
Pliczko, M.
Śliwińska, A.
Krauss, K.
Miszczyk, M.
Waligóra, M
Powiązania:
https://bibliotekanauki.pl/articles/1916715.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
pediatric obesity
health measurements
Adiposity
Opis:
Introduction: So far, very little data on pediatric obesity has been published in Poland, although the problem seems to be growing.Objective: To investigate present prevalence of overweight and obesity among schoolchildren using CDC (Center of Disease Control and Prevention) criteria in Krakow and to compare how it has changed between the years 2001 and 2013. Our aim was to establish the magnitude of this rising problem within the last decade.Materials and methods: The study was conducted in two phases. In 2001, height and weight of the group of schoolchildren were obtained. Twelve years later, children in the same age, attending the same schools, were measured and weighed. Using the collected data, BMI (kg/m2) was calculated in order to acquire BMI percentile. BMI cutoffs referential for Polish population were used.Results: Using the CDC criteria to diagnose children as obese or overweight, the authors determined that the prevalence of overweight, including obesity was 10.8% in 2001 and changed to 15.1% in 2013 (p=0.0054). The percentage of obese children increased from 2.0% to 4.8% (p=0.0012). The occurrence of overweight and obesity has increased among girls (p=0.0025; p=0.0112 respectively) while among the group of boys, it did not change. The factors associated with excess weight were: male sex (OR=1.48; 95%CI=1.13-1.95) and second phase of the study (OR= 1.48; 95%CI=1.13-1.95).Conclusion: Our study indicated that the prevalence of obesity and overweight among adolescents in Krakow rose within the last decade. The rising problem affected females more than males. Despite that, excess weight is still more frequent among males than females.
Źródło:
Progress in Health Sciences; 2015, 5, 1; 156-161
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence of neurotic and anxiety disorders in rural schoolchildren and the role of physical exercise as a method to support their treatment
Autorzy:
Krauss, H.
Buraczynska-Andrzejewska, B.
Piatek, J.
Sosnowski, P.
Mikrut, K.
Glowacki, M.
Misterska, E.
Zukiewicz-Sobczak, W.
Zwolinski, J.
Powiązania:
https://bibliotekanauki.pl/articles/50344.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Opis:
Introduction: School anxiety has become a common problem in children and adolescents. Despite numerous studies, it is difficult to definitely identify the cause of neurotic disorders in school-age children. The objective of the presented study was to assess the prevalence of neurotic disorders in rural schoolchildren and the role of physical activity as a method to support their treatment. Material and methods: The study consisted of 123 girls and 117 boys living in rural areas of Wielkopolska. A questionnaire was provided evaluating family status, family relationships, school situation, somatic symptoms related to being at school, and the frequency of physical activity. Results: It was found that over the 50% of children considered the relations with siblings as correct, but also acknowledged that there were a conflict situations in their relationship. Nearly 25% of children indicated an emotional irrelevance with their parents. About 20% of the young people did not like going to school or were afraid to stay there. Over the 50% of children declared somato-emotional problems associated with the being at school. The symptoms of neurotic disorders were more strongly expressed and more common in girls. Analysis of physical activity indicated that only a small group of young people practiced sport regularly, and an even smaller percentage of children exercised with their parents and/or peers. Conclusions: The development of somatic and emotional disturbances in children may be associated with irregular family and school relationships and low physical activity. It was found that gender had a significant influence on most of the studied parameters.
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of selected factors influencing intent to get pregnant in the Greater Poland Region
Autorzy:
Wojciechowska, M.
Krauss, H.
Bogdanski, P.
Mikrut, K.
Checinska, Z.
Szulinska, M.
Piatek, J.
Pieta, B.
Sosnowski, P.
Zukiewicz-Sobczak, W.
Kupsz, J.
Powiązania:
https://bibliotekanauki.pl/articles/50386.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2014, 21, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental pollution and parental smoking influence on the appearance of pseudocroup in children
Autorzy:
Pucher, B.
Jonczyk-Potoczna, K.
Buraczynska-Andrzejewska, B.
Szydlowski, J.
Grzegorowski, M.
Krauss, H.
Piatek, J.
Zukiewicz-Sobczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/50282.pdf
Data publikacji:
2013
Wydawca:
Instytut Medycyny Wsi
Opis:
Objective: The aim of the study was to assess the effect of environmental pollution and parental tobacco smoking on the occurrence of pseudocroup in children. Material and methods: A questionnaire-study was performed in 345 children with pseudocroup admitted to the ENT Dept between 1997–2007. 116 children had smoking and 229 had non-smoking parents. Both groups were compared with respect to environmental pollution (urban, rural), parents’ level of education, household crowding and breast feeding period. The prevalence of upper and lower respiratory tract infections and the presence of allergy were also anlaysed. The results were compared to those performed in the ENT Dept in 1977 -1986. Results: In the group of rural children, 21 were children with pseudocroup from smoking parents and 36 children of nonsmoking parents. Among children living in the urban areas there were 95 from smoking parents and 193 from non-smoking parents. Both non-smoking parents presented a large group of people with a higher level of education, and in the smoking families both parents presented a lower level of education. Analysis of the breast feeding period revealed that it was the longest (up to 9 months) in non-smoking mothers – 21% of the group, and only in 4.3% of smoking mothers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2013, 20, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of CEGRN 2005 as the eighth of CERGOP observing campaigns
Autorzy:
Hefty, J.
Gerhatova, L.
Stangl, G.
Haslinger, C.
Krauss, S.
Becker, M.
Drescher, R.
Grenerczy, G.
Kratochvil, R.
Liwosz, T.
Powiązania:
https://bibliotekanauki.pl/articles/224554.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
CERGOP
CEGRN
obserwacje geodezyjne
Central European Regional Geodynamic Project
geodetic observation
Opis:
Strategy of analysis and results from solution of CEGRN epoch campaign in 2005 Combined solution of CEGRN 2005 based or individual solutions from six an: centres and its comparison with CEGRN 2003 coordinates. Time evolution of coordinates at some long-term observed CEGRN sites obtained during epoch camp since 1994 and the related problems.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 39-46
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevalence of Human Papillomavirus (HPV) in upper respiratory tract mucosa in a group of pre-school children
Autorzy:
Szydlowski, J.
Jonczyk-Potoczna, K.
Pucher, B.
Buraczynska-Andrzejewska, B.
Prauzinska, M.
Kolasinska-Lipinska, J.
Krauss, H.
Piatek, J.
Zukiewicz-Sobczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/50141.pdf
Data publikacji:
2014
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2014, 21, 4
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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