Electrical energy must be supplied in enough amount but with adequate quality. One of the components of electrical energy quality is the harmonic distortion. In this paper, we show an alternative way to measure distortion, mixing Data Envelopment Analysis (DEA) and Fourier Analysis. The technique here presented is specially useful for comparative analysis and is intended to be the basis for an ...

India : Its Prevalence, Causation and Ijr?ve;ntion. By Arthur Lankester, m.d. (Lond.). .Messrs. Butterworth & Co. Dr. Lanki^stijr's book represents the results of a large amount of laborious and systematic research. It is so full of interesting and useful information that it is difficult to summarise it. The book is divided into the three parts mentioned in the title; it is tke outcome of two y...

Background: To determine the basic physical and dosimetric properties of a new synthetic single-crystal diamond detector and its application for relative small field dosimetry. Materials and Methods: The pre-irradiation dose required to stabilize detector response, dose rate dependence, photon and electron energy dependence, temperature dependence and angular dependence of MicroDiamond detector...

Abstract To meet water demands, pressurised irrigation networks often need pumping devices, whose power demand varies with the pump head, flow rate delivered and efficiency. satisfy energy of pumps, solar photovoltaic panels can be used as a renewable source. Since electricity supply photovoltaics plant depends on irradiance, that powers time day. This study presents strategy for scheduling del...

A large collection of palladium samples, supplied by IMRA Materials (Japan), were studied to determine the relationship between energy production and various properties including the amount of excess volume, the open-circuit-voltage, and the maximum D/Pd ratio. The following conclusions result from the work: 1. Palladium, no matter how well prepared, is very inhomogeneous with respect to the pr...