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The dual-field domain decomposition algorithm based on the element-level decomposition is accelerated using GPU clusters for electromagnetic analysis in the time domain. Various aspects of the implementation are investigated, and an optimal implementation strategy is proposed to utilize GPU's parallelized architecture. An example shows that through careful arrangement of the GPU memory and thread...
Graphics processing units (GPUs) are efficient in accelerating algorithms that are highly parallelizable. This paper discusses various aspects of parallelizing the traditional finite element algorithm, whose communication-intensive nature makes it difficult to be parallelized in a straightforward manner, and proposes solutions to alleviate the acceleration bottlenecks. The examples show that decent...
In this study, nitrogen ion implantation was used to mutate a pyrene-degrading bacterium, Gordona sp. hbs1, which was isolated from a polycyclic aromatic hydrocarbons (PAHs) contaminated soil. The pyrene degradation characteristics of hbs1, including isotherm and pH effect were observed. 200 mg/L pyrene, 53.78% was degraded by hbs1, equals to 10.75 mg/L. The optimum initial pH for pyrene degradation...
This paper describes the principles of BP algorithm and the improved BP neural network be used in the traditional PID control, neural network and PID control law integration, with both self-learning neural networks, adaptive and capacity to approximate any function, Conventional PID control structure also has a simple, high reliability characteristics. Avoid the network into a local minimum; it can...
In this paper, the robust stability for a kind of stochastic interval delayed Hopfield cellular neural networks is investigated by means of the Itô formula, Razumikhin theorems, Lyapunov function and norm inequalities. several simple sufficient conditions are obtained which guarantee the robust stability of the stochastic interval delayed Hopfield cellular neural networks. some recent results reported...
Along with the rapid development of the computer industry environment, the contradiction between desktop computers and environments is increasingly prominent. The text analyze the whole life cycle of the desktop computer starting from the concept of sustainable development and the basic concept of life cycle. When finish the matrix of life cycle assessment method according to factors which make effect...
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