منابع مشابه
Non-destructive in-situ performance monitoring of high-efficiency SPV modules using infrared thermography in composite climate of India
The solar energy sector has experienced remarkable growth in recent years due to technical developments, encouraging government policies and cost reduction.1 However, the large-scale market-driven growth of solar photovoltaic technologies has to overcome technical hurdles such as performance and reliability.2 The solar photovoltaic modules (SPV) are expected to perform with an acceptable degrad...
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in order to restrain the potential of wind energy, the first step is to determine the wind energy potential. in this study the wind data was used from the three-hour frequency recording of 10-year period (2002-2011). to predict the occurrence probability of each wind speed, the two-parameter weibull function was used. the goodness of fit test by chi-square test showed that the wind speed distri...
متن کاملMethod of Evaluation of Efficiency Improvement Potential for District Heating Systems with Focus on Variable Speed Centrifugal Pumps
The goal of this research is the derivation of method for evaluation of efficiency improvement potential for district heating systems with focus on variable speed centrifugal pump. The effectiveness of the usage of the proportional pressure control is compared with the constant pressure control. This is why, energy calculation analyses have been realized for variable speed centrifugal pumps, an...
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We resolve the inner region of a massive cluster forming in a cosmological ΛCDM simulation with a mass resolution of 2 × 106M⊙ and before z=4.4 even 3 × 10 5M⊙. This is a billion times less than the clusters final virial mass and a substantial increase over current ΛCDM simulations. We achieve this resolution using a new multi-mass refinement procedure and are now able to probe a dark matter ha...
متن کاملAnalysis of the SPV Secure Routing Protocol
We analyze a secure routing protocol, Secure Path Vector (SPV), proposed in SIGCOMM 2004. SPV aims to provide authenticity for route announcements in the Border Gateway Protocol (BGP) using an efficient alternative to ordinary digital signatures, called constant-time signatures. Today, SPV is widely considered the best cryptographic defense for BGP. We find subtle flaws in the design of SPV whi...
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ژورنال
عنوان ژورنال: Renewable and Sustainable Energy Reviews
سال: 2008
ISSN: 1364-0321
DOI: 10.1016/j.rser.2006.05.011