In this paper we review the status of the simulation of detonations using the direct simulation Monte Carlo method and report on progress in applications to the hydrogenchlorine system. Recent work with this stochastic approach has demonstrated successes in treating simple model systems, confirmed many of the details found in earlier analyses, and revealed new phenomena such as ultrafast detona...

Experience with fluid-flow simulation suggests that, in some instances, under-resolved direct numerical simulation (DNS), without a residual-stress model per se but with artificial damping of small scales to account for energy lost in the cascade from resolved to unresolved scales, may be as reliable as simulations based on more complex models of turbulence. One efficient and versatile manner t...

Current paper presents an approach to emulate fault simulation of sequential circuits on FPGA. Fault simulation is an important subtask in test pattern generation and it is frequently used throughout the test generation process. In the paper, we explain the problems associated to fault emulation for sequential circuits. Two alternative approaches are described, which can be considered as trade-...

In previous papers we have demonstrated how the direct simulation Monte Carlo method can be used to simulate detonations. Those simulations were limited to exothermic reactions. In this paper exothermic and endothermic reactions are simulated. Under these circumstances, one obtains pathological detonations. That is, these simulations cannot be predicted using the well-known Chapman-Jouguet hypo...

A simulation-based cycle time-throughput curve requires a large amount of simulation output data, and an experimentation framework is needed to enhance the precision and accuracy of a simulation-based cycle time-throughput curve. In this research, approaches and solutions are presented on three prime issues: 1) the establishment of the simulation sampling strategies; 2) the determination of the...

this paper presents interactive software which shows and analyzes through visual simulation some sequential and parallel algorithms. It was study the memory access for PRAM model and some significant algorithms for PRAM model. It was analyze also some sorting algorithms and some graph algorithms in both variants sequential and parallel. The software was implemented in Java. It was also performe...

The ever-increasing complexity and size of current circuit designs have made testing and verification major bottlenecks in the design flow of VLSI (Very Large Scale Integrated) circuits. Statistics show that more than 70% of the design effort can be spent on functional verification and manufacturing testing. This percentage is expected to increase in the future if no significant strides in thes...

We empirically evaluate the performance of various reinforcement learning methods in applications to sequential targeted marketing. In particular, we propose and evaluate a progression of reinforcement learning methods, ranging from the “direct” or “batch” methods to “indirect” or “simulation based” methods, and those that we call “semidirect” methods that fall between them. We conduct a number...