查询词典 holonomic system

In inertia system K,geometric sphere is changed to elliptic sphere in K system by Lorentz transformation ,and the pre-sphere of optical wave in K system is changed to sphere in K system.

对惯性系K中的几何球面施以洛仑兹变换，在K′系得到扁椭球面；对K中的光波前球面，在K′系则得到球面；两者皆源于时空的基本属性，但前者是由于物体长度的相对性，后者则是由于光速的不变。

Aiming at the composition of shipborne UAV system and the main problems in its embarkment on ships,this paper analyzed and proposed the model selection requirements on the three subsystems(aerocraft,task equipment and ship surface system) of the shipborne UAV system,and brought forward suggestions on development thoughts of shipborne UAV system.

针对舰载无人机系统的组成以及上舰存在的主要问题等进行分析，提出舰载无人机系统三个子系统(飞行器、任务设备、舰面系统)的选型要求，对舰载无人机系统的发展思路提出建议。

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

This paper focuses on the design and implementation of data transportation and communication in CGSE Control System, including communication system architecture design, module design and implementation of communication system, data exchange design and protocol encasement, data demonstration and backup system, driver model design and implementation.

本文主要研究CGSE(AMS超低温地面支持系统)控制系统中CAN通信的分析与设计工作，包括：通信系统组合架构设计、通信系统具体模块设计和实现、数据传输和封装协议、数据操作和备份系统、底层驱动程序设计和实现等。

On the political front, Junguo parallel implementation of the system, follow the example of the Han dynasty system, county enfeoffment system and parallel system, bureaucratic establishment and implementation of the central and local Bureaucracy, to ensure the effective control of the political and practical rule.

在政治上，实行郡国并行制，仿效汉朝制度，郡县制和分封制并行，并实施中央官制和地方官制，确保政治上的有效控制和实际统治。

At present, there are two branches in the research of database security technology, which are secure database management system and enhancive database security system. According to the view of enhancive database security system, this paper takes the typical TCSEC model as reference. An agent system is built between database client and database server for secure communication, SQL parsing and access controlling.

目前，我国数据库安全技术研究主要有安全数据库管理系统和数据库安全增强系统两个方向，本文主要从数据库安全增强系统的角度出发，参考经典的TCSEC监视器模型，在数据库客户端和服务器端之间建立一个代理系统，来完成数据库的安全通信、SQL分析和访问控制等功能。

In the development of this system, its security epically for resisting SQL Injection is researched primarily. A new resisting SQL Injection method via program validation and strengthening database security is put forward to reinforce the security of the system proposed in this paper.Combined with the practicality of XAUT hospital, this paper designs methods of EPR integration in different structure based on XML existing in centralized and distributive instance is designed, and an ophthalmologic electronic patient record system using XML which is a new hot research topic in the domain of medical system.

本文在对医院信息系统的研究热点——电子病历和XML技术进行研究的基础上，设计了在异构数据环境下基于XML的集中式和分散式的电子病历集成方法，并结合西安理工大学医院眼科的实际情况，设计了一个基于XML的眼科电子病西安理工大学硕士学位论文历系统， xAUT医院信息系统的设计与应用，提高了医院的工作效率和信息化程度，为医院的信息管理带来了方便。

This system is a distributed and distant communication system with PC as epigyny computer and 8098 SCM as hypogyny computers. The authors deeply research hardware structure and soft design of this system and draw up a plan for this system.

该系统是由PC机为上位机、6台8098单片机为下位机的远距离分布式通信系统，作者对系统硬件结构和软件设计进行了深入的研究，提出了系统的实现方案。

By rational designs of mechanical structure and plan, the system uses PLC as the core of control on site, and accomplishes control of the installment and debug of the system step by step by software configuring design of the touch panel. Industrial computer, the centre of monitor, control and management of the system, composes epigyny and hypogyny machines' real-time monitoring and controlling system with PLC by designing the communicative model and program, and accomplishes man-machine dialogue in form of suppositional panel by designing supervisory software. Meanwhile, we also adopt client/server model and realize long-distance supervision of impact sensitivity experiment by program designing.

系统通过合理的机械结构和方案设计，采用PLC作为现场控制核心，通过对触摸屏软件组态设计，完成了系统现场安装、调试时的单步控制功能；作为系统的监控、调度中心的工控微机通过通讯模式和程序设计，与PLC组成上、下位机实时监控系统，间接地实现了对撞击感度试验的监控，并通过上位机实时监控管理软件的设计，以虚拟面板的形式较好地实现了人机对话；采用客户机／服务器模式，通过软件编程实现了撞击感度试验的远程监控功能。

This paper expatiate TP touch screen as a epigyny machine management system and the Plc system applied in the silicon oil emulsification and production,This system provide great advantage in the silicon oil emulsification and production,the main system specialties are the TP is communicated with PLC by RS232,greatly improving the efficiency of the silicon oil emusification and production with few malfunction and easy to real time inspection.

本文主要阐述了TP触摸屏作为上位机管理系统与 PLC通讯在硅油乳化生产中的实际应用，该系统在硅油乳化生产中有较大的优越性，系统特点是触摸屏与系统通过 RS232 串行通讯，达到管理与控制相结合，便于实时监控，减少了故障率，大大提高了硅油乳化的生产效率。

Add it into your food such as to yogurt, cottage cheese and such.

你可以把它加入到像酸奶、奶酪一类的食物中一起进食。

The man was rescued about three hours later when his partner arrived home, SAPA said.

SAPA说，这为男子在三个小时后妻子回家后被解救