نتایج جستجو برای: polyurethan
تعداد نتایج: 15 فیلتر نتایج به سال:
AIM The purpose of this prospective, randomized, controlled study was the comparison of maximal sterile barrier (consisting of mask, cap, sterile gloves, gown, large drape) vs control precautions (mask, cap, sterile gloves, small drape) and of transparent polyurethan film vs gauze dressing for use on central venous (CVC) nontunneled catheters, inserted via the jugular vein. Skin colonization at...
During the last decades glueing became a popular joining technology especially in light weight construction. In order to allow for an appropriate description of glued components in simulations the behaviour of polymer layers hast to be investigated experimentally and theoretically. In this presentation the mechanical behaviour of polyurethan layers is studied in shear experiments. As expected, ...
Introduction: Electrospun nanofibers are suitable option to synthesize filtering mats for nanoparticles. This study was aimed to fabricate polyurethane nanofiber mats through electrospinning process and to investigate the effect of different parameters such as packing density, face velocity and particle type on the filtration efficiency and quality factor of electrospun polyurethane nanofiber m...
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