Reliable wind modelling is of crucial importance for wind farm development. The common practice of using sector-wise Weibull distributions has been found inappropriate for wind farm layout optimization. In this study, we propose a simple and easily implementable method to construct joint distributions of wind speed and wind direction, which is based on the parameters of sector-wise Weibull dist...

In this paper we present a new layout-driven timing model based on Asymptotic Waveform Evaluation (AWE) for improved timing analysis during routing. Our model enables the bottom-up computation of interconnect tree moments, and can be easily integrated with such a global router. Such an integration achieves incremental layout optimization, i.e., timing analysis and routing are tightly coupled, w...

Cache miss rates are quoted for a speciic program, cache connguration, and input set; the eeect of program layout on the miss rate has largely been ignored. This paper examines the miss variation, that is, the variation of the miss rate for instruction and data caches resulting from randomly chosen layouts. New layouts were generated by changing the order of the modules on the command line when...

In mining projects, all uncertainties associated with a project must be considered to determine the feasibility study. Grade uncertainty is one of the major components of technical uncertainty that affects the variability of the project. Geostatistical simulation, as a reliable approach, is the most widely used method to quantify risk analysis to overcome the drawbacks of the estimation methods...

SUMMARY. In a parallel line assay, there are three treatment contrasts of major importance. Block designs allowing the estimability of all the three contrasts free from block effects, called L-designs, necessarily have the block sizes even. For odd block sizes, we provide here a class of highly efficient designs, called nearly L-designs. These nearly L-designs have been constructed by establish...

Pipe network layout optimization is an important and difficult problem in pipe network engineering. Differing from the previously proposed approaches for various optimization formulations, the authors use a methodology for pipe network optimization consisting of network layout optimization coupled with pipe sizing analysis. The methodology is based on a novel heuristic optimization algorithm in...

This paper presents a module generator for Digital/Analog Converter (DAC) circuits. A combination of circuit simulation and DAC design equations is used to estimate performance. A new constrained optimization method is used to determine design variable values. The layout is created using stretching and tiling operations on a set of primitive cells. Close coupling of optimization and layout allo...