A high degree of security for normal operation of larger inter connected power system is required one of the requirements of reliable service in electrical power system is to maintain the synchronous machines running in parallel with adequate capacity to meat the low demand with the growing stress on present days power systems, the potential impact of faults and other disturbances on their security is increasing.




Protective relays in the power system detect faults and trigger the opening of circuit to isolate the fault.The power sy ....etc

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Transient Stability Assessment using Neural Networks

A high degree of security for normal operation of larger inter connected power system is required one of the requirements of reliable service in electrical power system is to maintain the synchronous machines running in parallel with adequate capacity to meat the low demand with the growing stress on present days power systems, the potential impact of faults and other disturbances on their security is increasing. Protective relays in the power sy ....etc

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Liquefaction and related phenomena have been responsible for tremendous amounts of damage in historical earthquake around the world. Especially, its devastating effects sprang to the attention of geotechnical engineers in a three-month period in 1964 when the Niigata earthquake in Japan followed the Good Friday earthquake in Alaska. Evaluation of liquefaction resistance of soils is an important step in many geotechnical investigations in earthquake-liable region. The most common procedure around the world for evaluating liquefaction resistance ....etc

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A high degree of security for normal operation of larger inter connected power system is required one of the requirements of reliable service in electrical power system is to maintain the synchronous machines running in parallel with adequate capacity to meat the low demand with the growing stress on present days power systems, the potential impact of faults and other disturbances on their security is increasing. Protective relays in the power system detect faults and trigger the opening of circuit to isolate the fault. The power system can be ....etc

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Lies are part of human life! People often tell lies to deceive others. many of us have heard about lie detector ,some where seen in movies or read it in fiction stories. Does anything of this sort really exist? If yes, does it really detect lies? Yes it does. The first thing that comes to our mind is how an instrument with some electronic components can read out our mind. Though science and technology are growing at the speed of light, has it reached a stage where it can read mind? Not exactly! But it can approach to that stage by monitoring t ....etc

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Liquefaction and related phenomena have been responsible for tremendous amounts of damage in historical earthquake around the world. Especially, its devastating effects sprang to the attention of geotechnical engineers in a three-month period in 1964 when the Niigata earthquake in Japan followed the Good Friday earthquake in Alaska. Evaluation of liquefaction resistance of soils is an important step in many geotechnical investigations in earthquake-liable region. The most common procedure around the world for evaluating liquefaction resistance ....etc

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oekom researchâ„¢s assessment of companies according to criteria of environmental, social and cultural sustainability is challenged by scarce response by Japanese companies.After the presentation of the rating agency and its tools, this project analyses the expressed explanations both from the German and the Japanese perspective with support by Trompenaars and Galtung/ Welfords contributions.
The definition of sustainability is not static, but describes the means of the process towards a more sustainable development. The Japanese contribu ....etc

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This paper deals with the application of artificial neural network to the transient stability assessment of a power system. The backpropagation technique is used to train the neural networks. The use of artificial neural network for computing critical clearing time and transient energy margin for a machine infinite bus system has been illustrated. In our enthusiastic investigations we found the ideas here proposed for a single machine will be the pioneer for extension of the same to the assessment of multi machine stability.

http://pptpdf.n ....etc

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A dense gas is defined as any gas whose density is greater than the density of the ambient air through which it is being dispersed. This result can be due to a gas with a molecular weight greater than that of air or a gas with a low temperature due to auto-refrigeration during release, or other processes. The importance of dense gas dispersion has been recognized for some time. Early field experiments (Van Ulden, 1974; Puttock et al., 1982; Koopman et al., 1984) have confirmed that the mechanisms of dense gas dispersion differ markedly from neu ....etc

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The lack of a standard gauge for quantifying computer system vulnerability is a hindrance to communicating information about vulnerabilities. The inability to address this issue through uniform semantics often leads to uncoordinated efforts. This presents a feasible approach for resolving this problem by introducing a standardized assessment. It introduces a method, termed the System Vulnerability Index (SVI) that analyzes a number of factors that affect security. These factors are evaluated and combined, through the use of sp ....etc

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