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Wyświetlanie 1-3 z 3
Tytuł:
Developmental Task Attainment in Adolescents from Families with a Recovering Alcoholic or Active Alcoholic Father
Autorzy:
Grzegorzewska, Iwona
Cierpiałkowska, Lidia
Powiązania:
https://bibliotekanauki.pl/articles/430442.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
children of alcoholics
alcoholic parents under treatment
high-risk development
protective factors
developmental tasks
Opis:
The problem under consideration is the issue of adolescent developmental tasks in families with alcohol-related problems, especially in families which contain one or more treated alcoholics. In the present work it was hypothesised that the treatment of alcoholic fathers would be one of the more important protective factors in families coping with alcoholism. The participants of the study included 91 children, aged 17-18. The research sample was comprised of three groups: 31 children of active alcoholics, 30 children of treated alcoholics, and 30 children of non-alcoholic parents. In general, the results of the study highlight the roles of temperament and parenting practices in the progress of developmental tasks. The data revealed that family characteristics were correlated to the predictors of these tasks. The groups used in the study were differed according to the factors of their developmental tasks.
Źródło:
Polish Psychological Bulletin; 2011, 42, 3; 95-104
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Main aspects influencing the evaluation of atmospheric overvoltages in high-voltage networks
Autorzy:
Borecki, Michał
Ciuba, Maciej
Kharchenko, Yevhen
Khanas, Yuriy
Powiązania:
https://bibliotekanauki.pl/articles/2173536.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
overvoltage protection
high voltage networks
reliability of power grids
risk analysis
ochrona przed wysokim napięciem
sieć wysokiego napięcia
niezawodność sieci elektroenergetycznych
ocena ryzyka
Opis:
The effectiveness of lightning protection on the power and distribution grid is a significant factor, which influences the power distribution reliability and the failure rate of system elements. As part of this article, a mathematical model will be presented, taking into account selected parameters that affect the assessment of the lightning hazard of an overhead line. The proposed model will consider the location of the object near the line and the adjustment of line conductor overhangs. Moreover, the mentioned mathematical model allows for analyzing the impact of considered parameters on the protection level of the power system, and transient overvoltages that occur in this system. The article contains also a detailed description of an effective and fast method to assess the lightning discharge impact on the power system with insufficient data. The introduced model was tested to verify the correctness of its operation by comparison of calculation results and functional data. High convergence of calculated and functional data and uncomplicated model structure ensure a wide range of applications for the proposed solution to easily prevent emergency situations in the power system. Furthermore, the described model gives the opportunity to assess the reduction of the range of selectivity zone associated with the power line, in conjunction with the impact of constructional peculiarities and a near object.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; art. no. e135838
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Main aspects influencing the evaluation of atmospheric overvoltages in high-voltage networks
Autorzy:
Borecki, Michał
Ciuba, Maciej
Kharchenko, Yevhen
Khanas, Yuriy
Powiązania:
https://bibliotekanauki.pl/articles/2090728.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
overvoltage protection
high voltage networks
reliability of power grids
risk analysis
ochrona przed wysokim napięciem
sieć wysokiego napięcia
niezawodność sieci elektroenergetycznych
ocena ryzyka
Opis:
The effectiveness of lightning protection on the power and distribution grid is a significant factor, which influences the power distribution reliability and the failure rate of system elements. As part of this article, a mathematical model will be presented, taking into account selected parameters that affect the assessment of the lightning hazard of an overhead line. The proposed model will consider the location of the object near the line and the adjustment of line conductor overhangs. Moreover, the mentioned mathematical model allows for analyzing the impact of considered parameters on the protection level of the power system, and transient overvoltages that occur in this system. The article contains also a detailed description of an effective and fast method to assess the lightning discharge impact on the power system with insufficient data. The introduced model was tested to verify the correctness of its operation by comparison of calculation results and functional data. High convergence of calculated and functional data and uncomplicated model structure ensure a wide range of applications for the proposed solution to easily prevent emergency situations in the power system. Furthermore, the described model gives the opportunity to assess the reduction of the range of selectivity zone associated with the power line, in conjunction with the impact of constructional peculiarities and a near object.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; e135838, 1--8
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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