查询词典 computer aided engineering

This paper reviewed the related literatures to spare parts inventory management,discussed the progress of spare parts inventory management involving classification,demand forecast,inventory model and stategy,control approach,stockout and obsolescence,gave the future research trend——computer aided spare par...

通过对国内外有关备件库存管理的文献分析，总结了备件库存管理在备件分类、备件需求预测、备件库存模型与策略、备件库存控制与管理方法以及缺货与报废问题的研究状况，揭示备件库存管理的发展趋势———计算机辅助备件管理及备件物流管理。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

以气液固三相喷射环流反应器为研究对象，将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统，利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积，以获得表面标记的示踪粒子，解决图象处理技术与相的识别的问题，利用频闪技术拓展了测量上限，得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统；采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究，并考察物性参数、操作参数与结构参数的影响规律。

This paper gives the particular description of theoretical analysis and practical design for a suspended interdigital bandpass filter which used for rejection the mirror image frequence of a superheterodyne receiver . Based on computer aided design, the parameters of the filter are given and simulated.

本文结合对超外差接收机中镜频抑制滤波器的研究，将传统的设计方法与先进的微波电路仿真软件HP-ADS相结合，对其进行建模、仿真、优化设计，并且加工了一个较高性能的4.8GHz～5.2GHz悬置线终端短路式交指型带通滤波器的实物。

Facial features location is an important research aspect in computer-aided photographic superimposition .

人面部特征点的自动标定是计算机辅助颅像重合技术的重要研究内容之一。

The Be' zier curve and surface are important means in computer aided car body surface styling.

B样条曲线、曲面是计算机辅助汽车车身造型的一个重要工具。

The application of these methods and technical enables the 3DJDQCAD system syncretize with the 3D visualization technology and the computer aided simulation technology.

这些方法和技术的成功应用将三维可视化技术和仿真技术有机的集成到3DJDQCAD中，这也正是本文的创新之处。

This paper studies Wood Tenoner Modeling and Computer-aided manufacturing about numerical control tenon process.

本文研究实木榫建模与数控开榫计算机辅助制造技术。

The relevent concepts of tensor analysis into the study of computer aided tolerancing are introduced,and the general method for seeking the sencitivity coefficients of the mechanical problems with explicit constrains is derived.

把张量相关概念引入计算机辅助公差设计的研究中，导出显含约束、具有普遍意义的敏度系数求取方法。

The position of reflected laser dot can be adopted by the position sensitive detector and signal processing circuit controlled by magnetostrictive coefficient test program developed on Testpoint platform. So, a computer aided test system of magnetostrictive coefficient of the films can be realized with resolution better than 1ppm.

通过在Testpoint平台上开发的磁致伸缩测试程序，采用位置敏感传感器和信号处理电路获得光斑位置信息，实现了薄膜磁致伸缩系数的计算机辅助测试，系统的分辨率：λppm。

On the basis of foregoing computer-aided instructional software's demand, I open up PAI system.

根据以上对计算机辅助教学软件的要求，开发了PAI系统。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。