Abstract Oblique impact is the most common situation that cyclists experience during traffic accidents which human head undergoes both linear and rotational (angular) accelerations. Angular acceleration of known to be linked majority traumatic brain injuries. This paper proposes various solutions mitigate angular accelerations an anisotropic column/matrix composite foam design effective. smart ...

Shape-stabilized phase change materials (SS-PCM) are promising given their potential to control leakage of liquid PCM. However, SS-PCM still has low thermal conductivity and high flammability, which important properties for several applications, such as the indoor comfort in buildings. In this study, two new polymeric were developed optimized by use different additives. Both high-density polyet...

The present study reports the development of sandwich panels for building walls having electromagnetic interference (EMI) shielding abilities. Conductive polymer composites (CPCs) have started being employed as EMI materials. In this paper we propose use a conductive composite flat sheet made high-density polyethylene (HDPE) recovered from municipal solid wastes (MSW) used polymeric matrix, “do...

In order to elucidate the mechanism of enhancement heat transfer in polymer composites, this work, we investigated two types polymer-carbon filler composites. This investigation was made using scanning thermal microscopy (SThM) with Wollaston microprobe operated active mode as a function carbon weight fraction within matrix. Samples consist high-density polyethylene (HDPE) filled 50 µm expanded...

an essential characteristic for high performance inherently hydrophobic membranes such as microporous high density polyethylene (hdpe) membranes is to have a hydrophilic surface. in this project, wet chemical functionalization as a facile and effective method was developed to give a hydrophilic property to hdpe membranes using polar functional groups. kclo3, k2cr2o7 and kmno4 were selected as o...

The purpose of this study was to investigate the validity of infrared tympanic temperature (IR T(ty)) as a thermal index to evaluate the heat strain of workers in hot environments, in comparison with rectal temperatures at various depths (T(re-4, -8, and -16) for 4, 8 and 16 cm from the anal sphincter). Eight males underwent twelve experimental conditions: two activities (rest and exercise) × t...

The experiment was conducted in three model drinking water distribution systems (DWDSs) made of unplasticized polyvinyl chloride (PVC), silane cross-linked polyethylene (PEX) and high density polyethylene (HDPE) pipes to which tap water was introduced. After 2 years of system operation, microbial communities in the DWDSs were characterized with scanning electron microscopy, heterotrophic plate ...

Soil fumigants are used to control a wide variety of soil-borne pests in high-cash-value crops. Application of soil fumigants through drip irrigation systems is receiving increasing attention as a method to improve the uniformity of fumigant application. Little information is available on the emissions and soil distribution of fumigants following subsurface drip application, or the effect of pl...