Anaerobic digestion is a promising method of organic waste valorisation, particularly for fish farm waste, which has experienced high growth rate in recent years. The literature contains predictive mathematical models that have been developed by various authors, allowing the prediction composition bio-gas production from waste. In general, Monod’s kinetic expression basis describing enzymatic r...

This paper presents a parallelized Quasi-Monte Carlo algorithm for the extraction of partial inductances in IC interconnect structures. Quasi-random numbers provide superior convergence over pseudo-random numbers, and in this paper the results are presented for three quasi-random number sequences-Halton, Sobol and Niderreiter. The algorithm has been parallelized and an almost linear rate of par...

We present an asynchronous algorithm based on Quasi-Monte Carlo methods for the computation of multivari-ate integrals. Randomized Korobov and Richtmyer sequences are applied for problems of moderately high to high dimensions. We propose the use of Sobol rules in those dimensions where the integrand shows particular singular behavior. Timing results on MPI yield good speedup.

Abstract The Variogram Analysis of Response Surfaces (VARS) has been proposed by Razavi and Gupta as a new comprehensive framework in sensitivity analysis. According to these authors, VARS provides more intuitive notion is much computationally efficient than Sobol’ indices. Here we review arguments critically compare the performance VARS-TO, for total-order index, against Jansen estimator. We a...

In this research the sensitivity analysis of the geometric parameters such as: length, thickness and width of a single link flexible manipulator on maximum deflection (MD) of the end effector and vibration energy (VE) of that point are conducted. The equation of motion of the system is developed based on Gibbs-Appel (G-A) formulation. Also for modeling the elastic property of the system the ass...

Resumo: In this study, we present the basic-concepts of ground-water hydraulic on stochastic media, whose the Theis equation is used in the transient movement of groundwater as result of pumping in a confined aquifer in saturated porous media under random parameters. A special importance is given on circumstances which requires a high-dimension stochastic to obtain a certain precision in probab...

In this paper, the nonlinear free vibration of fiber-reinforced lamina micro-switches is investigated, and a sensitivity analysis (SA) is given. The switches are modeled as solid rectangular beams consisting of an isotropic matrix with transversely and longitudinally isotropic reinforcements, incorporating a higher order Hamiltonian approach. An SA of the proposed micro-switch is presented by c...

We report on the implementation of high dimensional scrambled Sobol sequences for Monte Carlo Simulations under the statistical software packages R and SPlus. The generator provides low discrepancy sequences distributed uniformly in [0, 1) or distributed normally with mean zero and variance one. The implementation interfaces the ACM Algorithm 659 which allows to generate three different types o...