Kevlar is the most commonly used material as armour for protection against bullets used in hand guns because of its impact resistance, high strength and low weight.These properties make Kevlar an ideal material to be used in bullet-proof vests as compared to other materials.In the present study, different numbers of layers of Kevlar with different
The paper contains the results of a lengthy Reusable Face Masks analysis of the operation of sewers renovated using the relining method.The author based the analysis on the effects obtained from computer simulations that were carried out using the Finite Element Method.The models used to proceed with the FEM simulations were verified by the results
Transmission error (TE) and backlash are important parameters used to evaluate the transmission accuracy of cycloid-pin drives.Existing calculation methods are mostly based on two-dimensional tooth profile models, and these methods ignore the influence of some abnormal meshing phenomena caused by profile modifications (PMs), manufacturing errors (M
Caffeine is the most widely consumed psychoactive substance in the world.Strikingly, the molecular pathways engaged by its regular consumption remain unclear.We herein addressed the mechanisms associated with habitual (chronic) caffeine consumption in the mouse hippocampus using untargeted orthogonal omics techniques.Our results revealed that chron