نتایج جستجو برای: electric industry

تعداد نتایج: 331821  

Journal: :iranian journal of medical physics 0
mehdi roknian m.sc., in health science, tehran university of medical sciences, tehran, iran parvin nassiri professor, health science dept., tehran university of medical sciences, tehran, iran hojat zeraati associate professor, public health science dept., tehran university of medical sciences, tehran, iran mohammad gholami m.d., sepahe eslam makhsus highway, defense industries organization (d.i.o), armament industries group.hadid industries

introduction: it is important that biological and health effects from the induction of currents and fields in the body by extremely low frequency (elf) fields are fully explored to determine the effects produced at the molecular, cellular and organ levels. the objective of this study was to evaluate the intensity of elf electromagnetic fields and its probable relationship with hematological cha...

In this paper, a combinatorial reverse auction mechanism is proposed for selecting the most efficient service-providers for resolving sustained power interruptions in multiple regions of an electric power distribution company’s responsibility area. Through this mechanism, supplying the required service in each region is assigned to only one potential service-provider considering two criteria in...

Environmental degradation and Economic growth are two important proofs in sustainable development which are followed by steel industry. In this case, energy and environmental damages as sustainability patterns of environment have been investigated in three different dust collectors to select the most environmentally suitable dust collector for electric furnace. In this article, the consumption ...

2007
Joseph E. McCann

The continued development of strategic planning processes in electric utilities is of utmost importance, given their increasingly complex, dynamic markets. Development will be blocked unless electric utilities begin developing and integrating other organization systems within their strategic planning processes to create "strategic support ·systems". This article describes three dimensions for a...

2015
Y. X. He J. Wang Xin Zhuang Bei Nong Lu

In recent years, coal price has risen rapidly, which has also brought a sharp increase in the expenditures of thermal power plants in China. Meantime, the power production price and power retail price have not been adjusted accordingly and a large number of thermal power plants have incurred losses. The power industry is a key industry in the national economy. As such, a thorough analysis and e...

2017
Piyush Kumar Jha Epameinondas Xanthakis Vanessa Jury Alain Le-Bail

Ice nucleation is a stochastic process and it is very difficult to be controlled. Freezing technologies and more specifically crystallisation assisted by magnetic, electric and electromagnetic fields have the capability to interact with nucleation. Static magnetic field (SMF) may affect matter crystallisation; however, this is still under debate in the literature. Static electric field (SEF) ha...

ژورنال: مواد پرانرژی 2020

The electric initiator is an important component of the explosive train which provides requiered energy to initiate a chemical reaction by converting the electric current to the heat via a bridgewire. This initiator is widely used in the field of aerospace industry in the solid rocket propellant motors, separation systems and etc due to its low weight and high reliability. In this research, a m...

2015
Chun-Yao Tseng

Academia and industry agree on the importance of knowledge worker workers in emerging economy or new industrial country for economic growth. Understanding the changing nature of knowledge workers in an industry-level analysis is helpful to formulate industry policy. This study aims to investigate the changing of knowledge workers in Taiwan 20 manufacturing industries during 1988-2005. Empirical...

2005
David R. Kamerschen Peter G. Klein David V. Porter

We estimate changes in market structure in the US electric power industry during the last three decades using two independent approaches. First, we estimate an industry-wide conjectural-variations parameter. We find that industry concentration was generally rising during the 1970s, but has been gradually and consistently falling since the early 1980s. To check the robustness of these results, w...

2014
Jia Hroung Wu Wen Lan Wu

It is often seen an object move or vibrate repeatedly. Some phenomenons are useful, but another is unavailable motion. The unavailable motion makes a lot of energy dissipation. In order to utilize the energy unavailable motion makes, the research will use the energy to generate electric power for solving the deficient personal energy sources problems. In general, the generator coil sweeps the m...

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