The Analysis of a Helmeted Human Head Under Ballistic Impact Loads

2014 ◽  
pp. 125-141
Author(s):  
M. Salimi Jazi ◽  
A. Rezaei ◽  
G. Karami ◽  
F. Azarmi ◽  
M. Ziejewski
Author(s):  
David E. Raymond ◽  
Greg S. Crawford ◽  
Chris A. Van Ee ◽  
Cynthia A. Bir

The majority of engineering studies that quantify the biomechanical response of the human head to blunt impacts have been focused primarily on replicating automotive-related trauma [1]. Relatively little biomechanical data exists on head response and skull fracture tolerance due to impacts with small surface area objects moving at high velocity, as can occur with the deployment of less-lethal kinetic energy munitions that are now available to police and military personnel. Law enforcement are trained to direct such munitions away from the head and at body regions least likely to sustain serious to life-threatening injury, such as the legs, however impacts to vital regions such as the head have occurred [2]. Previous research efforts have investigated facial impact response to blunt ballistic impacts however data regarding the temporo-parietal region are lacking and require study under these unique loading conditions [3]. Prior research has indicated that the scalp and soft tissue covering the skull are important factors to consider when studying impact response and skull fracture tolerance [4]. These data however have been limited primarily to impact velocities typical of the automotive crash environment. The purpose of this study is to evaluate the contribution of soft tissue to the biomechanical response and tolerance of the temporo-parietal region under blunt ballistic impact conditions.


Author(s):  
YAOKE WEN ◽  
GUANGYU CUI ◽  
JUNBIN ZHANG ◽  
CHENG XU ◽  
XUEYING HUANG

2005 ◽  
Vol 2005.11 (0) ◽  
pp. 171-172
Author(s):  
Dai WATANABE ◽  
Kohei YUGE ◽  
Tetsuya NISHIMOTO ◽  
Susumu EJIMA ◽  
Shigeyuki MURAKAMI ◽  
...  

1994 ◽  
Vol 04 (C8) ◽  
pp. C8-677-C8-682
Author(s):  
H.-J. Ernst ◽  
K. Hoog ◽  
V. Wiesner

2020 ◽  
pp. 132-139

In this study, only (122) out of (915) primary school students were shown to be infected with head lice Pediculus. humanus capitis. The number and percentage of infected males were 46 (11.3%), while the number and percentage of infected females were 76 (14.9%). The results in our study also showed that the number and percentage of goats infected with goat sucking lice, Linognathus stenopsis was 70 (21.7%) of the total 322 animals, with the highest number and percentage among female goats 44 (62.9%) compared to the male goats 26 (37.1%). The study demonstrated that the rate of genetic difference between the studied samples was 89% and the similarity rate was 11%. Detection of OP-K01 gene pieces by PCR products showed that the amplicon size was 520 bp for P. humanus capitis isolated from humans, while the detection of OP-E20 and OP-M05 gene pieces with PCR product showed the lowest amplicon size 230 bp for Linognathus stenosis isolated from goats.


Author(s):  
Daniel Ponce ◽  
Eduardo Szpoganicz ◽  
Leonardo Mejia Rincon ◽  
Ernesto Ponce Lopez

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