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计量管理信息系统采用了最新Foxpro2.5数据库管理系统软件。软件运行速度快,数据处理功能强,用户界面友好,可促进计量管理工作的科学化、系统化和规范化。 相似文献
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An efficient wavelet-based finite-difference time-domain (FDTD) method is implemented for analyzing nanoscale optical devices, especially optical resonator. Because of its highly linear numerical dispersion properties the high-spatial-order FDTD achieves significant reduction in the number of cells, i.e. used memory, while analy- zing a high-index dielectric ring resonator working as an add/drop multiplexer. The main novelty is that the wave- let-based FDTD model is extended in a parallel computation environment to solve physical problems with large di- mensions. To demonstrate the efficiency of the parallelized FDTD model, a mirrored cavity is analyzed. The analysis shows that the proposed model reduces computation time and memory cost, and the parallel computation result matches the theoretical model. 相似文献