Power quality (PQ) has become a key problem of urban power grid recently. Improving power quality is a technical problem being concerned by both power supply companies and the consumers. Shenzhen power grid, as a typical urban power grid, is exemplified in this paper. Through researches, typical PQ issues of a key region in urban power grid are discussed. Industrial feasibility study is carried...

when neo-conservative came to power, they acquired twofold behavioral models towards nuclear case of iran. mainly, this derives of essential conflicts of the two state, and partly, because of differential regional and international interests and favorites of u.s. and islamic republic of iran. with studying iranian nuclear viewpoints, we analyze the mentioned american strategy and tactics, with ...

It is always easier to find out the elements of success and/or failure in retrospect than to find new development paths for the future and new modes of action in the middle of uncertain and open-ended situations. True leadership is becoming more and more important and hence there seems to be a need to direct attention also towards studying power and competences needed in promotion of economic d...

Undoubtedly, during the post-Cold War era, the fields of political competition changed and with the change in the political geography of the Caspian Sea, the Caucasus and Central Asia, as the Soviet Union collapsed and new countries emerged, the field of competition for a change in power balance not only expanded but took on a new form. Economic benefits, diversification of fossil fuels and new...

extended abstract 1.introduction relationship pattern has a complex, combinational and also intelligible nature in the current geopolitical structure of the world. civilizations’ relations together and civilization interactions include: engagement, competition and conflict in a range of geopolitical treatment pattern. some of spatial values which originated challenges among region country have ...

We investigate the shot-noise-limited sensitivity of a four-mirror-cavity enhanced Michelson interferometer. The intention of this interferometer topology is the reduction of thermal lensing and the impact of the interferometers contrast although transmissive optics are used with high circulating powers. The analytical expressions describing the light fields and the frequency response are deriv...

Flexible AC Transmission Systems (FACTS) devices have shown satisfactory performance in alleviating the problems of electrical transmission systems. Optimal FACTS allocation problem, which includes finding optimal type and location of these devices, have been widely studied by researchers for improving variety of power system technical parameters. In this paper, a DIgSILENT-based Discrete Parti...