California's recently enacted Renewables Portfolio Standard (RPS, Senate Bill 1078) requires the state's investor-owned utilities (IOUs) to increase the renewable portion of their energy mix, with a goal of 20% renewable energy generation by 2017. Renewable generation projects will compete with...

An experimental and analytical investigation for the temperature distribution prediction of a three-phase bubble-type direct-contact condenser conducted, using a short Perspex column with 4 cm internal diameter and 70 cm height as a direct contact condenser. Vapour pentane and water were...

We prove a central limit theorem for the asymptotic joint distribution of non-linear statistics of the form [summation operator]l = 1N XNltItlIt+1,l, 1 [less-than-or-equals, slant] t [less-than-or-equals, slant] r - 1, and linear statistics of the form [summation operator]l = 1N XNltItl, 1...

Let denote the set of absolutely continuous distributions on [0, [infinity]) with finite (infinite) mean. We show the non-existence of a test of H0: versus in the class of sequential tests based on independent identically distributed observations X1,X2,... distributed as F, and which make the...

A widely used procedure for robust estimation of the scatter matrix of multivariate data is the 'minimum volume ellipsoid' or MVE estimator. This seeks to find the ellipsoid of minimum volume which covers at least half of the data. Not only is the MVE used in its own right, it is also the...

The asymptotic null distribution of a test statistic for stability over time of a correlation coefficient in a bivariate sequence is derived. The statistic is an adaptation of the classical Fisher's z.