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Wyświetlanie 1-2 z 2
Tytuł:
Finite element head model for the crew injury assessment in a light armoured vehicle
Autorzy:
Burkacki, Michał
Wolański, Wojciech
Suchoń, Sławomir
Joszko, Kamil
Gzik-Zroska, Bożena
Sybilski, Kamil
Gzik, Marek
Powiązania:
https://bibliotekanauki.pl/articles/27324139.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
head model
HIC
head injury
safety assessment
model głowy
uraz głowy
ocena bezpieczeństwa
Opis:
Purpose: The aim of this paper was the development of a finite element model of the soldier’s head to assess injuries suffered by soldiers during blast under a light armoured vehicle. Methods: The application of a multibody wheeled armoured vehicle model, including the crew and their equipment, aenabled the researchers to analyse the most dangerous scenarios of the head injury. These scenarios have been selected for a detailed analysis using the finite element head model which allowed for the examination of dynamic effects on individual head structures. In this paper, the authors described stages of the development of the anatomical finite element head model. Results: The results of the simulations made it possible to assess parameters determining the head injury of the soldier during the IED explosion. The developed model allows the determination of the parameters of stress, strain and pressure acting on the structures of the human head. Conclusion: In future studies, the model will be used to carry out simulations which will improve the construction of the headgear in order to minimize the possibility of the head injury.
Źródło:
Acta of Bioengineering and Biomechanics; 2020, 22, 2; 173--183
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on the distribution of SAR and temperature in human brain during radio-frequency cosmetic treatment
Autorzy:
Qi, Xinzhe
Lu, Mai
Powiązania:
https://bibliotekanauki.pl/articles/1841322.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electromagnetic exposure
human head model
ICNIRP guidelines
radiofrequency cosmetic instruments
safety assessment
ekspozycja elektromagnetyczna
model ludzkiej głowy
wytyczne ICNIRP
ocena bezpieczeństwa
Opis:
This paper established a radio-frequency electrode model and human head modelused in RF cosmetic instruments. The distribution of electric field strength, a specific absorption rate (SAR), and temperature distribution in the human brain at 1 MHz and 6 MHz were studied and the results compared with the International Commission on Non-ionizing Radiation Protection (ICNIRP) guidelines. The results showed that under those two frequencies the maximum value of electric field strength in the human brain was 1.52 V/mand it was about 5.4% of the ICNIRP basic restrictions, the maximum SAR in human brain was about 2.21×10−3W/kg, which was far less than 2 W/kg of ICNIRP basic restrictions, the maximum temperature of the human brain was 37.6 located in the wounded skin, which was the same as the normal temperature 37. Since all the results were within the ICNIRP basic restrictions, the electromagnetic exposure generated by the RF cosmetic electrode will not pose a threat to the human health.
Źródło:
Archives of Electrical Engineering; 2021, 70, 1; 115-127
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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