Automation in electrical power systems by a barzam

Ngày tải lên: 12/12/2013, 08:18

... detection capability. The opposing school says that this is too sensitive and is the reason that many fault indicators give a false indication. A false indication delays the location of the fault and ... voltage across the switch is at a maximum value. The voltage across the capacitor at this instant is zero. Since the capacitor voltage cannot change instan- taneously, the system voltag...

Ngày tải lên: 31/12/2013, 23:26

... characterized by linear objectives and linear constraints. Many commercially available power system optimization packages contain powerful linear programming algorithms for solving power system ... converges. Mixed integer programming is an integer programming used for optimizing linear functions that are constrained by linear bounds. Quite often, the variables that are being varied c...

Ngày tải lên: 30/03/2014, 07:20

... domains carrying the opposing activities in adenylyltransferase are separated by a central regulatory domain Paula Clancy 1 , Yibin Xu 1,2 , Wally C. van Heeswijk 1,3 , Subhash G. Vasudevan 1,4 and ... by separate domains within adenylyltransferase. The N-terminal domain carries the deadenylylation activity, and the C-terminal domain carries the adenylyla- tion activity [Jaggi R, van...

Ngày tải lên: 30/03/2014, 08:20

... functions. The automatic voltage regulators used to control the excitation of synchronous machines also have an important compensating effect in a power system. By dynam- ically maintaining constant voltage ... compensator can vary its admittance continuously in such a way as to maintain V m  E, then in the steady state the line is sectioned into two independent halves with a...

Ngày tải lên: 16/02/2014, 20:20

... KOBAYASHI*, Futoshi YAZAMA**, Hiromi IKEURA*, Yasuyoshi HAYATA* Norio MUTO** and Yutaka OSAJIMA*** * School of Agriculture, Meiji University, 1-1-1, Higashimita, Tama-ku, Kawasaki, Kanagawa, ... SC-CO 2 treatment, whereas phosphatase (alkaline and acid) or naphthol-AS-BI-phosphohydrolase was slightly or a little inactivated. Ishikawa et al. (1996) reported that enzyme inactivation b...

Ngày tải lên: 05/09/2013, 09:38

... the schematic diagram of a typical laboratory-scale MBR experiment. Each reactor was made of plexiglass and had a designed working volume of 10 L. A flat sheet membrane made of chlorinated polyethylene ... membrane bioreactors (MBRs): Membrane fouling and membrane 213 material, Water Research, 43, 1489-1512. Mishima I. and Nakajima J. (2003). Coagulants and Phosphorus Behavior i...

Ngày tải lên: 05/09/2013, 10:15

... B.S. in Mechanical Engineering from Shanghai Jiao Tong University in China in 2008 and M.S. in Mechanical Engineering from Washington University in St. Louis in 2010. Xiaomin's research ... layout optimization of a wind farm of HAWT using GA gives a uniform grid arrangement similar that obtained by Grady et al. [2]; this is different than that obtained by Mosetti [...

Ngày tải lên: 05/09/2013, 17:03

... legal kill/manslaughter/murder 5.2.1.2.Synonym errors : Amazing- incredible, unbelievable, fabulous, wonderful, fantastic, astonishing, astounding, extraordinary AMAZING (an amazing ... oral language into a text that has meaning. It is usually a long piece of writing, so writing a single word is not a composition. Writing to convey a message, or making a piece of text...

Ngày tải lên: 14/12/2013, 16:45

... mF/mi. 9. An infinite rectangular wave on a line having a surge impedance of 400 Ω strikes a transmission line terminated in a capacitor of 0.004 mF. How much is the wave front retarded? 10. A long ... of capacitance and magnetic fields of inductances in the power systems. The electromagnetic phenomena may appear as traveling waves on transmission lines, cables, bus sect...

Ngày tải lên: 02/01/2014, 10:44