نتایج جستجو برای: power line
تعداد نتایج: 873678 فیلتر نتایج به سال:
INTRODUCTION................................................................................... 139 I. TECHNOLOGICAL CONVERGENCE ........................................ 141 II. BACKGROUND OF THE WIRELESS AND BROADBAND INDUSTRIES............................................................................... 143 III. EFFECT OF CONVERGENT COMPETITION ON DUOPOLIES . 148 A. Form of Convergent Compe...
به مجموعه فعالیت هایی که برای بازگرداندن شبکه قدرت به حالت عادی پس از وقوع خاموشی صورت می گیرد، بازیابی سیستم قدرت گویند که عبارت است از: استقرار مجدد نیروگاه ها و وصل دوباره خطوط انتقال و مصرف کننده ها. با توجه به اهمیت موضوع بازیابی، تهیه برنامه هایی که بتوانند در تصمیم گیری های بهره برداران و اشخاص خبره سهیم باشند، نقش مهمی در بازیابی ایفا می کنند. در حالت کلی مراحل بازیابی عبارتند از: جزی...
We investigate the influence of side information of the sender and the receiver on the performance of data transmission systems over impulsive noise channels. The “hidden” side information is the note that the in–phase and the quadrature components of the transmitted signal at a fixed time instant meet the same transmission conditions. The “exposed” side information is received when the impulsi...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...
This Comment examines whether the Supreme Court in Barclays v. Franchise Tax Board, correctly decided that the application of worldwide unitary taxation to non-U.S. parent groups does not violate the Commerce Clause.
We look at some techniques for constructing permutation arrays using projections in finite projective spaces and the geometry of arcs in the finite projective plane. We say a permutation array PA(n, d) has length n and minimum distance d when it consists of a collection of permutations on n symbols that pairwise agree in at most n − d coordinate positions. Such arrays can also be viewed as non-...
It is shown that by realizing the project of intensive γ beams with large energy (project PLC) an essential flux of light Goldstone particles (axions, arions, familons, majorons) will be generated. The light higgs can be observed via interaction with matter. The probability of light higgs electron production by absorption of several laser photons simultaneously is calculated.
The method of sluice control applied to reservoir is executed manually in field at present. To fix this problem, sluice remote monitoring system based on GPRS and PLC is provided. Some advanced technologies used in system are discussed. The system structure and principle are introduced. The system realizes wireless network connections between local control unit and center control unit based on ...
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