نتایج جستجو برای: protective device
تعداد نتایج: 788881 فیلتر نتایج به سال:
The transfer of chemical vapour deposited graphene from its parent growth catalyst has become a bottleneck for many of its emerging applications. The sacrificial polymer layers that are typically deposited onto graphene for mechanical support during transfer are challenging to remove completely and hence leave graphene and subsequent device interfaces contaminated. Here, we report on the use of...
Lightweight foam sandwich structures have excellent energy absorption capacity, combined with good mechanical properties and low density. The main goal of this study is to test the application an innovative hybrid protective device in offshore wind turbine (OWT). results are useful for structure applications. Different lightweight materials (aluminum foam, agglomerated cork, polyurethane foam) ...
This paper will outline the features required for a multifunction protective relay or intelligent electrical device (IED) that meets the special requirements of the distributed generation environment.
OBJECTIVE The objective of this study was to evaluate the protective effects of a new device for reducing perineal tears during vaginal childbirth. STUDY DESIGN A multicenter open randomized controlled trial (RCT) was performed in Helsingborg, Lund and Malmö, Sweden consisting of 1148 women. Women anticipating a vaginal delivery were either randomized to the intervention group (n=574 in which...
Background and purpose: The last way of noise control is using hearing protective devices that maybe the first way of noise control in some industries. Obviously if the hearing protection device is not used continuously and properly, its actual performance is reduced. The aim of this research was to investigate the relationship between demographic variables and BASNEF training constructs in pro...
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