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Wyświetlanie 1-6 z 6
Tytuł:
The use of high-performance concretes, ultra highperformance concretes, and additive manufacturing technology in increasing the ballistic protection level of field fortifications
Autorzy:
Wysoczański, Andrzej
Partyka, Jacek
Mackiewicz, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/28124259.pdf
Data publikacji:
2023
Wydawca:
Towarzystwo Wiedzy Obronnej
Tematy:
high-performance concrete
additive manufacturing
fortification
ballistic protection
Opis:
High-Performance Concretes (HPC) and Ultra High-Performance Concretes (UHPC) allow for the production of extremely durable construction elements when compared to those same elements made of C35/45 concrete. Increased compressive- and flexural strength markedly contribute to ballistic resistance reducing the area and depth of the “crater” which results from a potential impact of a projectile or a fragment. Additionally, the presence of dispersed fibres in these mixtures eliminates the need of using reinforcement bars, which, in turn, reduces the time expenditure and labour. The article compares the results of various ballistic tests of elements made of high-performance concrete mixtures to determine the viability of applying such elements in the defence sector. Furthermore, the authors present the possibility of adapting additive technologies for the performance of field fortification tasks by the military, as part of which the HPCs and UHPCs are used as working mixtures. The authors also show the possibility of fabricating construction elements without the use of formworks, as well as printing construction elements directly at the site of future operation of the buildings.
Źródło:
Wiedza Obronna; 2023, 3
0209-0031
2658-0829
Pojawia się w:
Wiedza Obronna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Secondary traumatic stress disorder symptoms in a sample of therapists and psychiatrists working with people after traumatic events
Autorzy:
Partyka, Małgorzata
Gołąb, Andrzej
Rzeszutek, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2075220.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Secondary traumatic stress disorder (STSD)
psychotherapist
psychiatris
Opis:
Objectives. To compare the level of secondary traumatic stress disorder symptoms, demographic (age) and work- -related variables (years of experience, average number of trauma patients over the past 12 months, and clinical supervision) in a sample of trauma therapists and psychiatrists working with trauma victims. Method. The study included 160 participants, 80 therapists and 80 psychiatrists, who worked with trauma victims. Participants filled out the PTSD Questionnaire: Factorial Version to assess the level of secondary traumatic stress disorder symptoms and the Berlin Social Support Scales to measure social support. They also provided demographic and work-related information. Results: The results of our study revealed higher rates of secondary traumatic stress disorder (STSD) symptoms among psychiatrists compared to therapists. We also noticed significant differences with respect to age, years of experience and actually received support between therapists and psychiatrists. Conclusions: Mental health specialists should be aware of the potentially negative impact of working with trauma victims in the form of secondary traumatic stress disorder symptoms
Źródło:
Studia Psychologiczne (Psychological Studies); 2017, 2; 34-40
0081-685X
Pojawia się w:
Studia Psychologiczne (Psychological Studies)
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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