نتایج جستجو برای: aluminum and electrical and electronic equipment
تعداد نتایج: 16895770 فیلتر نتایج به سال:
Computer and office equipment .................................................. $11.68 Measuring and controlling devices ............................................. 11.43 Electrical industrial apparatus .................................................... 10.61 Communications equipment ....................................................... 10.23 Electronic components and accessories ..........
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...
Background: Considering the importance of examining the effects of fluorine and its compounds on aluminum industry workers, this study aimed to compare the signs of dental fluorosis between the workers of one of the aluminum factories and one of the industrial equipment construction companies of Markazi province in Iran. Methods: This descriptive study was performed on 351 workers of one of ...
This paper proposes guidelines and an approach for assessing and ensuring that the replacement of electrical and electronic parts used in aircraft electrical systems and equipment is addressed safely from the software perspective in the certification process while minimizing manufacturer and operator costs and schedule impacts. Many electronic components used in already certified aircraft syste...
Waste electrical and electronic equipment (WEEE) has been one of the fastest growing waste streams worldwide. Effective and efficient management and treatment of WEEE has become a global problem. As one of the world's largest electronic products manufacturing and consumption countries, China plays a key role in the material life cycle of electrical and electronic equipment. Over the past 20 yea...
In order to characterize the creep behaviors of 2219 aluminum alloy at different temperatures and stress levels, a RWS-50 Electronic Creep Testing Machine (Zhuhai SUST Electrical Equipment Company, Zhuhai, China) was used for creep experiment at temperatures of 353~458 k and experimental stresses of 130~170 MPa. It was discovered that this alloy displayed classical creep curve characteristics i...
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