查询词典 database call

The main contents and results of research in this paper are shown as following: It is important to built the motion model of a virtual system. As the virtual object is the submarine in this simulation system, we studied on the motion model of the submarine and gave the submarine six DOF space motion equation MultiGen-Paradigm corporation's modeling software named Creator is used, the modeling of all entities and 3D terrain in virtual ocean environment is accomplished. Then introduced the theory of Large Area Database Management and realized the Large area database management; In the course of 3D scene simulation, Vega is utilized to develop the project. The building of 3D scene is done, which includes the simulation of static and dynamic ocean surface, realization of ocean wave, simulation of bow wave and stern wake, utilization of lighting and material, simulation of cloud and fog, kinematics' modeling of submarine etc.

论文的主要研究工作和成果包括以下一些内容：建立虚拟对象的运动模型是构造一个虚拟系统的关键所在，建立的运动模型准确与否直接关系仿真对象模拟的逼真度，由于本仿真系统的虚拟对象是潜艇，所以对潜艇的运动模型进行了研究，给出潜艇空间六自由度运动方程；利用MultiGen-Paradigm公司的Creator建模软件完成虚拟海洋环境中个实体模型建模和三维海底地形模型的建模；然后介绍了大地形数据库管理(LADBM，Large Area Database Management)技术的基本原理，实现大地形数据库管理；在三维场景仿真中，使用Vega驱动软件进行软件开发，完成了三维场景空间的建立，主要包括动态和静态海洋的仿真、海浪、船首波浪和传尾尾迹的实现，灯光和材质的使用，云和雾的模拟等。

"Professional standards test database to run Turbine Attendant (2nd Edition) Electric Power Engineering Steam Turbine Operation and Maintenance of professional" in accordance with the Ministry of Labor and Social Security to develop national occupational standards prepared at the request, and its mainly by professional profiles, job skills training, vocational skills certification and accreditation test database composed of four parts, namely, the technical level, work environment and occupational ability characteristics of a qualitative description: the training period, teachers, site equipment and training program outline the guiding provisions.

职业标准·试题库汽轮机运行值班员(第2版)电力工程汽轮机运行与检修专业》是按照劳动和社会保障部制定国家职业标准的要求编写的，其内容主要由职业概况、职业技能培训、职业技能鉴定和鉴定试题库四部分组成，分别对技术等级、工作环境和职业能力特征进行了定性描述：对培训期限、教师、场地设备及培训计划大纲进行了指导性规定。

In this paper, the proper experiment point was selected through space-filling experiments designs, and then the simulation model of high pressure common rail diesel was operated according to these points, which results engine performance database. The response model based on the input-output performance of the database has a good prediction accuracy to meet modeling requirements.

本文通过空间填充试验设计得到75个工况点，然后在一款电控高压共轨柴油机仿真模型上进行虚拟试验，得到发动机控制参数输入和性能输出的数据库，基于输入输出性能数据库建立的响应模型，经验证具有很好的预测精度且满足建模要求。

In this paper a novel ontology-based data semantic fusing frame named ODSF is introduced, the basic element of ODSF is dataset its semantic is obtained by the mapping between the domain ontology and dataset. ODSF adopts nested relation model to represent the schema information of dataset, and realizes the data fusing from coarse-grained level to the small-grained level by wrapping the datasets registered in virtual database as a new dataset. We also present the semantic model of ODSF, query executing process and algorithm of virtual database, so ODSF can provide the semantic supported and QoS supported data access for user. The experiments demonstrate our work and show the feasibility and effectiveness of ODSF and its key techniques.

本文提出了基于本体的语义数据容融合方法ODSF；该方法中的基本元素是数据对象，通过数据对象和领域本体之间的映射关系来表达数据对象的语义，使用嵌套关系模型来表达数据对象的模式信息，通过一个网格节点中集成的所有数据对象作为下一个节点的数据对象来实现数据资源由粗到细的融合；定义了ODSF的语义模型，给出了虚拟数据库的查询执行过程和算法，可以为使用者提供具有语义支持、服务质量保障的数据访问服务；通过原型系统验证了ODSF中理论和关键技术的正确性和可行性。

This paper discusses an Engineering database for semi-intelligent fixture design.The system structure,the data description,and developing method of the engineering database are given.

摘 要：对用于半智能化夹具设计的工程数据库进行了探讨，提出了工程数据库的体系结构、数据结构和实现方法。

Today,embarcadero serves more than three million application developers and database professionals with tools that are both interoperable and integrated.our databasegear and codegear products are connecting the developer and database communities in new ways-enabling them to increase productivity and quality,better collaborate for faster time to market,and further innovate by eliminating vendor restrictions.

公司提供的产品具备&可共同操作性&和&高度综合性&两大优势，目前客户包括三百万余名应用程序开发员及数据库专业人士。我们的databasegear；和codegear；系列产品以崭新的方式将开发员和数据库领域紧密连接。

Embarcadero databasegear professional grade database tools reduce complexity,improve productivity,and strengthen security for all your databases.our cross-platform tools span the entire database management lifecycle and support the market-leading databases including oracle,microsoft sql server,db2, sybase,and mysql.

公司业务的覆盖范围不仅仅是三百万客户，更涉及到全部平台、服务器和开发环境，为客户提供了高品质开放资源及商务软件工具的资源基地。

The experimental results on Olivetti Research Laboratory face database and NUST603 face database show that the new feature extraction method of statistically uncorrelated maximum margin criterion are better in terms of recognition rate and stability.

通过分别在ORL人脸库和NUST603人脸库上实验结果表明提出的具有统计不相关性的MMC特征提取方法在识别率方面整体上好于原MMC特征提取方法和常用的主成分分析法。

Combined with practice, understanding the development of web technology and database of basic knowledge, learning and application of related software development tools, familiar with the process of building sites, Web master database programming.

结合实践，了解网络技术和数据库开发的基本知识，学习和相关的软件开发工具的应用，在建筑地盘，网站管理员熟悉数据库编程的过程。

Combined with practice, understanding the development of web technology and database of basic knowledge, learning and application of related software development tools, familiar with the process of building sites, Web master database programming.

结合实践，理解网页开发技术和数据库的基本知识，学习相关开发工具和应用软件，熟悉网站建设的过程，熟练掌握网络数据库编程方法。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。