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41 articles for “reliability studies”
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Research ArticleOpen accessIn the abstractEVALUATION OF THE ADEQUACY OF THE WIND SPEED EXTRAPOLATION LAWS FOR TWO DIFFERENT ROUGHNESS METEOROLOGICAL SITESDalila Khalfa, Abdelouaheb Benretem, Lazher Herous, Issam MeghlaouiIncreasing knowledge on wind shear models to strengthen their reliability appears as a crucial issue, markedly for energy investors to accurately predict the average wind speed at different turbine hub heights and thus the expected wind energy output. This is particularly helpful during the feasibility study to abate the costs of a wind power project. The extrapolation laws were found … …American Journal of Applied Sciences, Vol. 11, Issue 4 · 1 Feb 2014 · 7,439 accessesView PDFCite
Research ArticleOpen accessIn the abstractECONOMIC AND PERFORMANCE EVALUATION OF STOCHASTIC MODEL ON A BASE TRANSCEIVER SYSTEM CONSIDERING VARIOUS OPERATIONAL MODES AND CATASTROPHIC FAILURESRajeev Kumar, Sunny KapoorIn this study a stochastic model for a Base Transceiver System (BTS) is proposed that consists of various hardware and software components. A Base Transceiver System (BTS) may undergoes four modes during its operation viz normal, congestion, down and failure mode. The hardware and software components may have various types of major and minor faults. The occurrence of a minor … …Journal of Mathematics and Statistics, Vol. 9, Issue 3 · 22 Jul 2013 · 7,075 accessesView PDFCite
Research ArticleOpen accessIn the abstractImplementation of Line Stability Index for Contingency Analysis and Screening in Power SystemsC. Subramani, Subhransu Sekhar Dash, Vivek Kumar, Harish KiranProblem statement: Estimating the margin in the loadability of the power system is essential in the real time voltage stability assessment. Voltage stability is currently one of the most important research areas in the field of electrical power system. In power system operation unpredictable events is termed as contingency and may be caused by line outage in the system which … …Journal of Computer Science, Vol. 8, Issue 4 · 11 Feb 2012 · 7,132 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstablishment, Verification and Application of a Correlation to Predict the Maximum Heat Flux of a Horizontal Closed-Loop Pulsating Heat PipeNiti Kammuang-Lue, Teerasak Hudakorn, Pradit TerdtoonProblem statement: In heat pipe design, it was very important to be sure that the desired heat pipe would not operate in the MHF state. In the case of a vertical CLPHP, the MHF state and maximum heat flux could be predicted by using the correlation, while, in the case of a horizontal CLPHP, there had been no study presented … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,422 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Students' Beliefs on Mathematics and Achievement of University Students: Regression Analysis ApproachVelo Suthar, Rohani Ahmad TarmiziProblem statement: At present, after almost more than 20-decades, Malaysia can boast of a solid national philosophy of education, despite tremendous struggles and hopes. The professional learning opportunities are necessary to enhance, support and sustain student's mathematics achievement. Approach: Empirical evidence had shown that student's belief in mathematics is crucial in meeting career aspiration. In addition mathematical beliefs are closely … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 8,016 accessesView PDFCite
Research ArticleOpen accessIn the abstractDifferences between Learning Styles in Professional Courses at University LevelZebun N. KhanProblem statement: As shown by research studies, knowledge of learning styles of students on the part of teachers is helpful in enhancing effectiveness of teaching-learning process. The present study was conducted to study and compare learning styles of students pursuing different professional courses at the university stage. The ultimate purpose was to facilitate learning in professional education in Indian conditions … …Journal of Social Sciences, Vol. 5, Issue 3 · 30 Sep 2009 · 7,907 accessesView PDFCite
Research ArticleOpen accessIn the abstractIdentification of Flutter Derivatives of Bridge Decks in Wind Tunnel Test by Stochastic Subspace IdentificationT. Janesupasaeree, V. BoonyapinyoProblem statement: Flutter derivatives are the essential parameters in the estimations of the flutter critical wind velocity and the responses of long-span cable supported bridges. These derivatives can be experimentally estimated from wind tunnel test results. Generally, wind tunnel test methods can be divided into free decay test and buffeting test. Compared with the free decay method, the buffeting test … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,133 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of the Agricultural Water Management Mechanisms in Zarindasht County, Fars Province, IranAli Asadi, Yaser Mohammadi, Hossein Shabanali FamiProblem statement: Both sequential droughts and lack of water optimal consumption in Zarindasht county, have created scarcity problem that caused agricultural yield’s loss in this county. So according to lack of optimal consumption of agricultural water in this county, the main purpose of this study was to investigate agricultural water management mechanisms in three fields of irrigation sources, water transfer … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 2 · 30 Jun 2009 · 7,958 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigating Mechanisms of Marginal Settlement Life ImprovementHamid Movahed Mohammadi, Yaser Mohammadi, Mehdi Rahimian, Navid LoghmaniThe main purpose of this research was to investigate mechanisms to improve marginal settlement life in Koohdasht County in Lorestan province. This research was a sort of the survey studies and a questionnaire was compiled for collection of data. Statistical population of this study was included 1560 households; also sampling method was a sort of random sampling. Number of sample … …Journal of Social Sciences, Vol. 4, Issue 3 · 30 Sep 2008 · 7,710 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDEPENDABILITY ATTRIBUTES FOR INCREASED SECURITY IN COMPONENT-BASED SOFTWARE DEVELOPMENTHasan Kahtan, Nordin Abu Bakar, Rosmawati NordinExisting software applications become increasingly distributed as their continuity and lifetimes are lengthened; consequently, the users’ dependence on these applications is increased. The security of these applications has become a primary concern in their design, construction and evolution. Thus, these applications give rise to major concerns on the capability of the current development approach to develop secure systems. Component-Based Software … …Journal of Computer Science, Vol. 10, Issue 7 · 17 Jun 2014 · 7,797 accessesView PDFCite