查询词典 research engineering

Then the algorithm was used to get the seven parameters of viscosity model of W-Ni-Fe heavy alloy and 316L stainless steel feedstock, which provide the necessary material data for quality forecast of mold core part made of stainless steel and heavy alloy tungsten ball, and for optimal design of mold and process parameters, which establishes the foundation of material database of MIM. In the research of visual simulation software development, in order to build the software system model and flow analysis algorithm based on Cross-WLF viscosity model, and realize functions such as pre-processor, solver, parameter regress, data management, graph operations, some advanced software methods as OOSE (Object Oriented Software Engineering) and UML were applied to set up user model, static model and dynamic model of MIM simulation software. These models describe system function, event flow, structure and relation of classes, object interaction, structure of database and I/O file format.

在MIM可视化仿真软件开发方面，为了建立软件系统模型及基于Cross-WLF粘度模型的流动分析算法，实现软件的前处理、求解器、参数拟合、数据管理和图形操作等功能，将面向对象软件工程与统一建模语言技术首次引入到MIM仿真软件的设计开发中，建立了软件的用户模型、静态模型和动态模型，描述了系统的功能需求、事件流程、类的结构与关系、对象之间的通信、数据库结构和输入输出文件格式等，用Visual C++与Delphi开发工具编码实现了2维MIM充模流动过程仿真软件，方便了对薄壁零件的质量预测以及模具和工艺参数的优化设计。

In the research of visual simulation software development, in order to build the software system model and flow analysis algorithm based on Cross-WLF viscosity model, and realize functions such as pre-processor, solver, parameter regress, data management, graph operations, some advanced software methods as OOSE (Object Oriented Software Engineering) and UML were applied to set up user model, static model and dynamic model of MIM simulation software. These models describe system function, event flow, structure and relation of classes, object interaction, structure of database and I/O file format.

在MIM喂料注射成形性能研究方面，针对毛细管流变仪测试法衡量流动性能的不足，提出使用螺旋线模具测试喂料熔体的注射成形性能，创造性地设计了一套可快换浇口，模腔封闭的螺旋测试模，并在螺旋测试模上采用正交实验设计，得出了高密度重合金喂料流动长度L_m的回归公式，揭示了L_m随Q_m、P_m、△T_m和凡的变化规律，并得出工艺参数对成形性能影响的强度顺序为Qm最大，尸m与△几其次，因而改善喂料流动性能应优先控制注射速率Qm。

In this paper, wind profile modeling in the new boundary layer wind tunnel of Wind Engineering Research Center, Tokyo Polytechnics University, Japan, is introduced briefly.

首先简单介绍了日本东京工艺大学风工程研究中心新建的开环流低速边界层风洞中风剖面模拟的试验情况。

At the beginning of this century, when the industrial project had just begun, the main content of which is to study and action research for the scientific management even. The 1920s, there are specialized in industrial engineering careers, absorbing mathematical and statistical knowledge base, have a progress chart, inventory model, the motivation, organization theory, the economy, plant layout, material handling methods. After the 1940s.

在本世纪初，当工业工程刚兴起时，其主要内容是以时间研究、动作研究为的科学管理方甚。20世纪20年代后，出现了专门从事工业工程的职业，在吸收数学和统计学知识的基础上，产生了进度图、库存模型、人的激励、组织理论、工程经济、工厂布置、物料搬运等方法。40年代后。

As a coordinate measuring machine, the optical probe composite coordinates (2.5 D ) measuring machine, the second yuan projection measuring machine, the optical probe of the professional Chaoshu machine manufacturers, using Yi Xing Bai Japanese modern enterprise management mode from the Chinese Academy of Sciences, Tsinghua University in Japan and the country returned to senior technical staff, as well as mechanical engineering design experts formed a strong research and development team, has a number of CMM mechanical design experts and motion control core technology independent intellectual property rights.

作为三坐标测量机、光学探针复合式二坐标(2.5元次)测量机、二次元投影测量机、光学探针式抄数机的专业生产商，壹兴佰采用日本现代化企业管理模式，由中科院、清华和国家高级留日归国工程技术人员以及机械设计专家组建的强有力的研发队伍，拥有多项三坐标测量机的机械设计专家及运动控制核心技术自主知识产权。

In order to investigate the seismic behavior of hybrid structures and guide design of high-rise buildings, the research projects on shake table tests of global structure and pseudo static tests of relevant member were generalized which were conducted in State Key Laboratory for Disaster Reduction in Civil Engineering of Tongji University in recent 5 years.

混合结构试验研究一般针对具体工程，研究佐证不充分且缺乏共性，为掌握混合结构抗震性能，指导高层结构设计，结合同济大学土木工程防灾国家重点实验室近5年来开展的混合结构及其受力构件研究，总结出地震力作用下混合结构受力特点及破坏规律，验证三水准、两阶段设防目标下结构的可靠性。

Researching on the actuality of reverse engineering and the usage of it, in the authors opinion, it is required to process original data satisfying the requirements of CAD/CAM software; and it is worth to emphasize the research work on curve and surface construction methods, to develop relative data-process software.

通过对逆向工程当前研究现状及实际应用情况的分析研究，指出逆向工程当前需要解决的关键问题是对原始测量数据进行必要的处理，使其适应CAD/CAM软件造型的数据要求；同时对曲线、曲面构形方法也需加强研究，并开发相应的数据处理软件。

In view of the problems of equipment oil and lubrication management of railroad engineering overhauling system after it has been repaired based on state, on the basis of analysis and research, the countermeasure and measure about lubrication management of technology and system were put forward.

铁路机务检修系统设备开展状态修后，针对其设备用油及润滑管理中存在的问题，通过调研分析，从润滑制度管理和润滑技术管理二个方面提出了相应的对策和措施。

The research in this field mainly focuses on three respects: the application in engineering, numerical analysis and the well-posed property of the given problem.

自由边界问题是偏微分方程研究领域中的一个主要研究方向，有着非常广泛的实际背景，如在流体力学、化学反应过程、金融数学以及物理中的相变问题等研究领域就存在大量的自由边界问题。

This dissertation, orienting to practical engineering applications, takes the lead in carrying out domestic investigations on expert system of fault detection and diagnosis for aerospace propulsion system and has successfully established a well-performed expert system for fault detection and diagnosis based on advanced theories and technologies. What is more, some research has been conducted on the new algorithmic method for fault detection and diagnosis; bondgragh method has been successfully used for fault detection and diagnosis in aerospace propulsion in the dissertation.

本文在国内首先应用先进的理论和技术，面向工程应用的实际，开展了空间推进系统故障检测与诊断专家系统的研究工作，并建立性能良好的故障检测与诊断专家系统；还进行了故障检测与诊断新算法研究，成功的运用键合图理论完成了空间推进系统的故障检测与诊断研究。

The dynamic variation in content of cndogenous abscisic acid,indoleacetic acid,gibberellinsand isopentenyladenodines of normal juvenilefruit and dropped fruit was measured with enzyme linked immunosorbent assayin the course of physiological fruit drop of 'Shuizhang Longan.

应用酶联免疫法测定了水涨龙眼生理落果期间正常幼果和脱落幼果中内源激素ABA、IAA、GAs及iPAs含量的变化。

Zillions of code examples on the web.

网上数量巨大的代码例程。