完全系统

The breakthrough point of this thesis is to make use of newsvendor"s model to explain the behavior of double marginalization in the Specialization system with Specialization Advantage, which is not accordant with the statement of" double marginalization " in economics (see Tirole,"the theory of industrial organization, P222-230). On the condition of Specialization Advantage, double marginalization may play positive role in the economy of the system.

论文的切入点是，利用报童模型来说明在具有分工优势的专业分工系统中双重边际效应的表现，这与经济学中对"双重边际效应"的表述参见Tirole(泰勒尔，《产业组织理论》，p222-230不完全一致，在有分工优势的条件下，双重边际效应可能对系统的经济性有积极的作用。

It can avoid overdoing the generalization.(3) Imputation of unknown values. To the incomplete information systems,the dissertation suggests a new method to impute the null values. The method is based on the extending model of rough sets and fully considers the consistence of data and dependency of attributes.

为了提高GDSS决策能力，本文提出了将粗糙集理论与层次分析法相结合的思想，利用粗糙集理论所确定的属性间的依赖关系，分析应用系统运行所积累的大量数据中各决策因素、决策者对决策目标的影响，构造具有完全一致性的个体判断矩阵和综合判断矩阵，建立自学习系统，克服决策者主观因素对决策结果的影响。

Based on the analysis of the Doppler effect of the mobile channel, the performance of two MIMO-OFDM systems (STTC-OFDM and SFBC-OFDM) in the fast-moving environment is studied. Then, the algorithm for channel estimation based on the training sequence is extended into the fast-moving environment by introducing the space-frequency coding, the method of the equal-interval pectinate pilot-inserting, and the complete Maximum-Likelihood space-frequency decoding.

针对快速移动环境中存在的多普勒效应，研究了两种多输入多输出正交频分复用系统在快衰落信道中的误码性能，采用空频编码梳状等间隔导频插入方式，以及完全最大似然空频分组码解码算法，使用导频与接收信号进行信道参数估计，将一般多输入多输出正交频分复用系统中的基于训练序列的最小均方误差信道估计算法推广到了快衰落信道环境中。

Among these systems is an entirely new and original system, Skipnum,recently developed by my close friend, Heinz Norden, the wellknown polymath.

在这些系统中，有一个完全崭新的、独创的系统-Skipnum，它是由著名的博学家，我的好朋友 Heinz Norden 最近创立的。

Coal feed to the pulverizer is stopped completely.

如果检测到系统存在任何问题，磨机的加料系统将完全停车。

The paper further realizes a hardware accelerate boundary-scan controller to improve the performance of the remote experiment system. The controller can realize the process of "configuration" and "verify"automatically without the control of CPU. The controllers operation in the remote experiment system can reach the expected goal. By performance analysis, we conclude that hardware accelerate boundary-scan controller is significant faster than that realized with software.

从提升远程实验系统性能出发，本文进一步设计实现了一个硬件加速的边界扫描控制器，该控制器能够完成对目标FPGA的"配置"和"验证"，执行过程中不需要CPU干预，在整个远程实验系统联合调试的过程中，运行完全正常，达到了预期目标，并且通过性能分析证明，硬件加速的边界扫描控制器相比于软件实现，速度有显著提升。

The fourth aspect is about authentication protocols analysis in special systems. We gave out the security analysis of AKE protocol and reauthentication protocol in the POD copy protection specification. We also gave out the security analysis of AKE protocols in DTCP specification.

在特定系统中认证协议分析方面，给出了配置点拷贝保护系统中认证密钥交换协议和重新认证协议的安全分析；给出了数字电视拷贝保护规范中的完全认证协议的安全分析。

By using PLC2104ARM SCM,the modem, the conversion of electricity and photoelectrically isolated circuit etc,, the system can complete the receival and process of the lift＇ s data, the control of MODEM, the judgement of the trouble of the lift,the fault storage, the warning and remote maintenance.

系统采用PLC2104ARM单片机、通用调制解凋器、电平转换、光电隔离电路等实现了电梯数据的接收、处理与MODEM的控制，实现了电梯故障的判断、故障存储、报警以及远程系统维护，测试表明，完全实现了设计目标。

Simulation and experiment results indicate that the system has high accuracy rate and high speed of recognition. It is enough to meet the requirements of Signpost recognition. The experiment also indicates that this system has good practical values and broad prospect of development.

仿真和试验结果均表明，该系统具有较高的识别准确率，识别速度较快，具有良好的实时性，完全能够满足路标识别的要求，显示出该系统具有良好的实际应用价值和广阔的发展前景。

The main content of this dissertation includes: 1. Research on the theory of ultrasonic power supply, introduce its development process. On the basis of these, fix on the scheme of medical ultrasonic low-power supply. 2. According to the principle of modularized design, divide medical ultrasonic low-power supply into four parts. They are power amplify circuit, power control circuit, frequency automatic tracking circuit and matching circuit. Separately research on their theories and design their circuits and necessary programs, especially, effectively resolve the problem tracking the supersonic vibration system with a narrow syntony frequency bandwidth and a high swing. 3. The matching experiments gain good result, and prove that medical ultrasonic low-power supply is entirely up to the mustard on intellectualization, wide band of working frequency, steady output and high efficiency.

本文工作的主要内容包括： 1、研究了超声功率电源的原理，并回顾了它的发展过程，在此基础之上确定本文医用小功率超声电源的设计方案； 2、按照模块化的设计原则，将医用小功率超声电源的设计分解为功率放大电路、功率控制电路、频率自动跟踪电路和匹配电路等四个部分，分别研究了各部分的原理，在此基础之上进行了具体的电路设计和程序设计，尤其是有效地解决了对谐振频率带宽窄振幅高的超声振动系统的频率跟踪问题； 3、通过与超声振动系统的各项配合实验，取得了很好的实验结果，验证了医用小功率超声电源完全满足智能化、工作频带宽、输出功率稳定、输出效率高的设计要求。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。