نتایج جستجو برای: proper use factor
تعداد نتایج: 2578952 فیلتر نتایج به سال:
in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
Nowadays, the technology intends to use materials such as magnesium alloys due to their high strength to weight ratio in engine components. As usual, engine cylinder heads and blocks has made of various types of cast irons and aluminum alloys. However, magnesium alloys has physical and mechanical properties near to aluminum alloys and reduce the weight up to 40 percents. In this article, a new ...
librarians are frequently consulted about proper citation formats and support the use of pc-based personal bibliographic citation management programs, such as endnote, often used by faculty and graduate students. recently, free or inexpensive web-based tools have been developed that create citations and format bibliographies. an analysis of citations generated by these programs shows that they ...
Background and aimsRespirators are widely employed as the only measure against respiratory hazards. However, it is well known that unless workers wear respiratory continuouslyand properly, its efficacy will be very low. The purpose of this study was to determine the risk perception and effective factors on proper use of respirators among workers exposed to chemical containments in a petrochem...
one of the most important goals for increasing recognition and treatment revenue is transmitting vital data to medical care team, more quickly. nowadays, use of new technologies for transmitting data will deploy more and more daily. in this article, for transmitting electrocardiogram, first we code the signal into a suite of codes, then we will use bluetooth technology to transmit data from off...
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