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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The results may be used for the calculation and optimization of the parameters of marine vibroseismosources.
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Calculation and optimization of plasma-optic focusing devices
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An algorithm is developed for calculation and optimization of mode transformers based on bends of rectangular ridge waveguides.
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A systematic analysis of the polymeric Mach-Zehnder rib waveguide is presented based on the calculation and optimization.
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Dose calculation and optimization for 3D conformal voxel scanning
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| | The problems of designing linear phase FIR digital filters using window functions are discussed. The design of linear phase FIR digital filters using practical non-ideal frequency characteristic models is evaluated. Ladder and raised cosine roll-off, etc. function models are studied. Results show that the design procedure of FIR filters is simplified because of the clear object, direct method, and elimination of the Gibbs phenomenon. | | 本文评述了用窗函数法设计线性相移非递归型(FIR)数字滤波器存在的问题,探讨用非理想频率特性的实际模型函数设计该种滤波器,采用了梯形函数、升余弦滚降函数等模型。由于目标明确,方法直接,消除了Gibbs现象,有利于简化计算及优化设计。 | | 文摘来源 | | By combining the reasonin design of the expert system with the analysis and calculation of spring based on a mathematical mode and its optimal design,an intelligent spring CAD system has been established.The expert system technique is ad■pted for such non-calculating designing steps as the selection of a scheme,the determination of parameters as well as for the development of the technological process,thus greatly strengthening the original CAD system of springs.This paper provides adetailed description of ... | | 本文将专家系统的推理设计和原来建立在数学模型上的一种弹簧分析计算及优化设计结合起来,建立一种智能型的弹簧CAD系统.对方案的选择,参数的确定及制造工艺的拟定等作计算型的设计内容采用了专家系统技术,大大强化了原来的弹簧CAD系统.本文讨论系统的功能,结构、特点及意义. | | 文摘来源 | | The complex astigmatic wave theory is used to analyse the electromagnetic characteristics of 3-D radome. A number of calculations for the ellipsoidal sandwich radome are performed, and the stereoscopic graphics are constructed. Comparing with the experimental results, it is shown that this method can be used to simplify the optimization designs for some kinds of 3-D radomes. | | 复象散波理论是一种分析三维介质雷达罩电磁特性的有效方法。本文以椭球夹心状的雷达罩为例,将其数值结果以三维立体方向图的形式给出,并与实验结果比较,说明这种方法可有效地简化介质雷达罩的分析、计算及优化设计。 | | 文摘来源 | |   | | << 更多相关文摘 |
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