goal: the goal of this research is to evaluate iranian state university websites using wai . method: this study is descriptive and delphi survey. the research sample consists of 100 iranian state university websites. data collection was used by checklists that prepared in the wai. results: assessing of the iranian state university websites according to five main criteria (accessibility, speed, ...

We measure the mean lifetime and speed of cosmic ray muons at sea level using coincidence techniques with scintillation detectors. We find the mean speed v of muons traveling near normal to earth’s surface to be 29.8 ± 2.5 cm/ns, corresponding to βμ = 0.994 ± 0.08 and γμ of 9.14. Our result is in agreement with the accepted average speed of vμ, which is listed as between 0.994 or 0.998 dependin...

Rail irregularity is one of the most effective factors in train derailment. theste irregularities have generally random distribution that are assumed to be stationary random and ergodic processes in space, with Gaussian amplitude probabiliy densities and zero mean values. The quality of irregularities, their distribution along the rails and wagon speed are the main factors for train derailment ...

Food-deprived rats were offered food in small meal segments, and latency to initiate feeding and time to complete it were recorded for each segment. Bilateral microinjections of d-amphetamine into nucleus accumbens dramatically increased the mean speed with which meal segments were eaten, but had no reliable effect on mean latency to initiate eating of new segments; l-amphetamine had similar bu...

BACKGROUND Severe depression can be a life-threatening disorder, especially in elderly patients. A fast-acting treatment is crucial for this group. Electroconvulsive therapy (ECT) may work faster than medication. AIMS To compare the speed of remission using ECT v. medication in elderly in-patients. METHOD The speed of remission in in-patients with a DSM-IV diagnosis of major depression (bas...

We consider two Gaussian measures. In the "initial" measure the state variable is Gaussian, with zero drift, and time-varying volatility. In the "target measure" the state variable follows an Ornstein-Uhlenbeck process, with a free set of parameters, namely the time-varying speed of mean-reversion. We look for the speed of mean reversion that minimizes the variance of the Radon-Nikodym derivati...

We derive optimality conditions and calculate approximate solutions to the problem of determining the optimal speed of mean reversion to be applied to a Gaussian state variable. The optimality criterion is the minimization of the variance of the Radon-Nikodym derivative of the measure ”with mean-reversion” with respect to the measure ”without mean-reversion” under constraints. We show that we c...

The relationship between ocean wind vectors and L-band normalized radar cross sections (NRCS) is comprehensively examined to propose an L-band model function by using the Phased-Array L-band Synthetic Aperture Radar (PALSAR) and scatterometer wind data. Based on more than 90,000 match-ups, the L-band NRCS dependence on wind speed, incidence angle, and relative wind direction is modeled for the ...

The objective of this paper is to investigate the effect of fuel injection pressure on power performance and fuel consumption of diesel engine. In a diesel engine, fuel injection pressure is an important aspect of the engines’ power performance in order to obtain combustion treatment. The experiments in this paper are performed on a four-cylinder two-stroke direct injection diesel engine. The d...