renewable and efficient electric power systems

... concentrating solar power dish and trough systems, micro-hydropower, and biomass systems for electricity generation. Special attention is given to under- standing the physics of fuel cells and their potential ... central power stations to smaller distributed gen- eration systems is described in Chapter 4. The chapter emphasizes combined heat and power systems and introduces an array of small, efficient ... Stein and Reynolds (1992). Average power w t in p a , p b or p c p a p b p c Power Total power p a + p b + p c is constant Figure 2.16 The sum of the three phases of power in balanced delta and...

Ngày tải lên: 24/03/2014, 13:20

Ngày tải lên: 03/01/2014, 19:36

Ngày tải lên: 03/01/2014, 19:39

... gura- tion of power networks. Load disturbances, on the other hand, are the sudden large load changes and the small random fl uctuations in load demands. The confi guration of power networks ... accurately modeling power system components such as synchronous generators, excitation systems, and loads has received a great deal of attention from the power industry. Standard generator and excitation ... between the excitation system and the rest of the power system, and (3) the degree of saturation and equipment aging, and so on. Also, the parameter values of excitation systems provided by manufacturers...

Ngày tải lên: 30/05/2014, 23:38

Ngày tải lên: 31/12/2013, 21:57

... the amount of power transmitted by a line is given by the product of the current flowing through it and 1.4 RESISTIVE HEATING 17 ELECTRIC POWER SYSTEMS A CONCEPTUAL INTRODUCTION Alexandra von Meier A ... Power 101 4.3.3 Multiple Generators: Real Power 107 4.3.4 Multiple Generators: Reactive Power 112 viii CONTENTS ELECTRIC POWER SYSTEMS including reactive power, I had seen. That manual proved to ... complex subject of electric power. I envision two main audiences for this book. The first consists of students and researchers who are learning about electric circuits and power system engineering in...

Ngày tải lên: 18/02/2014, 22:20

... expected to start and stop about 40 times a day as well as Figure 1.12 Wave power generation (Figure adapted from Pelamis) Introduction 19 Electric Power Systems Electric Power Systems B.M. Weedy ... system is operated and controlled to give secure and economic power supplies. c. Analysis, the calculation of voltage, power, and re active power in the system under normal and abnormal conditions. ... updated edition will ensure that Electric Power Systems continues to be an invaluable resource for senior undergraduates in electrical engineering. Electric Power Systems FIFTH EDITION B.M. WEEDY,...

Ngày tải lên: 07/03/2014, 10:20

... observed to be most efficient in cases of long dsRNA (89%), long dsDNA (84%), and siRNA (89%), and less efficient for siDNA (70%), whereas long scrambled dsDNA and short antisense and sense ssDNAs ... hybridization of sense strand (5¢-GTTGCTCTGGAAAACTCATTT-3¢) and anti- sense strand (5¢-ATGAGTTTTCCAGAGCAACTT-3¢), and siRNA was synthesized using DNA templates (sense strand, 5¢-AAATGAGTTTTCCAGAGCAACCCTGTCTC-3¢; ... with TMV and either 22 nucleotide sense strand DNA, 20 nucleotide antisense strand DNA, 470 bp dsDNA, or siRNA. Tobacco leaves with symptoms of TMV infection are shown. Uninfected plants and plants...

Ngày tải lên: 16/03/2014, 02:20

... Soliman Department of Electrical Power and Machines Misr University for Science and Technology 6th of October City, Egypt Abdel-Aal Hassan Mantawy Department of Electrical Power and Machines Ain Shams ... rule-based systems with fuzzy logic, fuzzy logic controllers, and fuzzy decision systems. The broadest class of problems within power system planning and operation is decision making and optimization, ... Operation of Electric Power Systems. Academic, New York (1979) 2. Horst, R., Pardalos, P.M. (eds.): Handbook of Global Optimization. Kluwer, Netherlands (1995) 3. Kuo, B.C.: Automatic Control Systems, ...

Ngày tải lên: 30/03/2014, 07:20

... anonymous, and traceable identities for both network security and user privacy. For effectiveness and efficiency, we adopted proxy signature cryptography [2, 3] to authenticate vehicles and RSUs and d ... TA: (1) the TA is trusted by all parties in the system and (2) secure channels are established between the TA and RSUs and between the TA and vehicles using the transport layer security (TLS) protocol. In ... on the road, driving speed, and so on. To generate the short-lived anonymous certificate, the RSU selects a random number n ∈ Z ∗ q and computes three parameters c, N,andz, according to (9). More...

Ngày tải lên: 21/06/2014, 11:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 21/06/2014, 18:20

... J.Tubbax,B.Come,L.VanderPerre,M.Engels,M.Moonen, and H. D. Man, “Joint compensation of IQ imbalance and carrier frequency offset in OFDM systems, ” in Proceedings of the Radio and Wireless Conference, ... Tarighat and A. H. Sayed, “Joint compensation of trans- mitter and receiver impairments in OFDM systems, ” IEEE Transactions on Wireless Communications,vol.6,no.1,pp. 240–247, 2007. [12] D. Tandur and ... 14 pages doi:10.1155/2010/106562 Research Article Efficient Compensation of Transmitter and Receiver IQ ImbalanceinOFDMSystems Deepaknath Tandur and Marc Moonen (EURASIP Member) K. U. Leuven, ESAT/SCD-SISTA,...

Ngày tải lên: 21/06/2014, 08:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 13/02/2014, 12:20

... control ODN (con) and the dead cells were counted after 16, 24 and 48 h of culture using trypan blue staining. (C) Cells were treated with 0.5, 1 and 2 lg of hpST3dODN and 1 and 2 lg of control ... functions in cells. STAT3 is mostly involved in cell survival and proliferation, and STAT1 is involved in anti-viral and immune defence and cell death, in response to interfer- ons, including IFN-c ... (lanes 4 and 5) for 16 h and lysed; the complexes were bound to streptavidine and separated on gels. Cells were either not treated (lane 1), treated with IL-6 (30 ngÆmL )1 , lanes 2 and 4) or...

Ngày tải lên: 18/02/2014, 08:20