نتایج جستجو برای: generation reliability

تعداد نتایج: 493499  

2009
S. Dehghan B. Kiani A. Kazemi A. Parizad

The utilization of renewable energy sources in electric power systems is increasing quickly because of public apprehensions for unpleasant environmental impacts and increase in the energy costs involved with the use of conventional energy sources. Despite the application of these energy sources can considerably diminish the system fuel costs, they can also have significant influence on the syst...

Journal: :Computers & Chemical Engineering 2008
Prakash R. Kotecha Mani Bhushan Ravindra D. Gudi

Various criteria have been considered in the literature for selection of optimal sensor networks. Amongst these, maximization of network reliability is an important criterion. While there are several approaches for designing maximum reliability networks, uncertainty in the available sensor reliability data has not been considered in these designs. In this article we present two novel formulatio...

Journal: :iau international journal of social sciences 2011
majid kaffashi farideh ghorabi tabrizi

this study focuses on the effect of social and cultural determinants on generation gap in tehranian families in 2011. the purpose of this study is to determine effective factors on generation gap in tehranian families, analytical and empirical patterns and be surveyed by related theories and effective factors. the research was prepared by questions including whether there is a relationship betw...

2009
Alexander Andronov

Estimation of function expectation θ = Ef(X1, X2, ..., Xm) is considered. For independent variables X1, X2, ..., Xm, sample populations H1, H2, ...,Hm are available as the primary data. The resampling approach uses the usual simulation procedure. For that, the random variables {Xi} are not generated by random number generators in accordance with the estimated probabilistic distributions, but ar...

2006

This draft report was prepared by NIST staff at the request of the Technical Guidelines Development Committee (TGDC) to serve as a point of discussion at the Dec. 4-5 meeting of the TGDC. Prepared in conjunction with members of a TGDC subcommittee, the report is a discussion draft and does not represent a consensus view or recommendation from either NIST or the TGDC. It reflects the conclusions...

Power transformers provide a vital link between the generation and distribution of produced energy. Such static equipment is subjected to abuse during operation in generation and distribution stations and leads to catastrophic failures. This paper reviewed the techniques in the field of condition monitoring of power transformers in recent years. Transformer monitoring and diagnosis are the effe...

Arya Hamedanchi, Hatef Yousefzadeh Shiva Ebrahimian Dehaghani Zahra Khosropoor

Introduction: Many patients who have had strokes suffer from dysphagia which can lead to aspiration pneumonia in 20% to 25% of cases. Early assessment of dysphagia has can reduce the risk of death and the cost of medical care. The present study developed a questionnaire to assess dysphagia in adult patients who have suffered strokes and determined the validity and reliability o...

Journal: :Journal of neurophysiology 2015
Gregory L Powell Richard B Levine Amanda M Frazier Ralph F Fregosi

Smoothly graded muscle contractions depend in part on the precision and reliability of motoneuron action potential generation. Whether or not a motoneuron generates spikes precisely and reliably depends on both its intrinsic membrane properties and the nature of the synaptic input that it receives. Factors that perturb neuronal intrinsic properties and/or synaptic drive may compromise the tempo...

As an efficient alternative to fossil fuels, renewable energy sources have attained great attention due to their sustainable, cost-effective, and environmentally friendly characteristic. However, as a deficiency, renewable energy sources have low reliability because of their non-deterministic and stochastic generation pattern. The use of hybrid renewable generation systems along with the storag...

2012
Mohamed Shaaban M. D. Usman

The risk associated with introducing wind turbines into the generation fleet is investigated in this paper. The loss of load probability (LOLP) and statistical expected demand not supplied (EDNS) are adopted as the risk indices. A case study is reported to evaluate the risk posed by displacing conventional generation with wind turbines. Results on the test system show that multiples of wind tur...

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