比较原理

It is very difficult to understand compiling algorithms because of their abstractness.

由于编译原理的算法比较抽象，要理解它们很难。

The principle and method for determining the total acid number of oil product by voltammetric techniques was described,the results of voltammetric techniques and standard method analysis were compared.

介绍了用伏安法测定石油产品总酸值的原理、方法，并将伏安法测定润滑油酸值的结果与标准方法测定结果进行了比较。

By synthesizing theories of systems engineering, science of talent, talent assessment, performance appraisal and bibliometrics, the author analyzes the qualification structure and performance structure of theachers in military academies and sets up a basic structure and concrete appraisal indicator system of qualifications of technical specialty for teachers in colleges. The author puts forward new appraisal indicators such as "lecuring hours coefficient","republication coefficient","thesis of core journals coefficient" and "citation coefficient". Comparatively complete quantification approaches are invented by the author for working performance of teaching, researching and social service of teachers. Based on this, the author establishes an integrated method to generate the appraisal results. By the application of stadardized processing on the appraisal results and synthetization of weighted indexes, the author solves the addibility and comparability problems of differentiated appraisal results by category or dimensiok, and realizes the amalgamation and comprehensive appraisal of inflexible appraisalresults and flexible appraisal results, and probes into the testification methods of validity, consistency and sensitivity analysis for the indicators system.

综合运用系统工程理论、人才学理论、人才素质测评理论、工作绩效评估理论、文献计量学等原理与方法，分析研究了军校教师的素质结构和绩效结构；建立了高校教师专业技术资格评审条件基本结构和具体评价指标体系，提出了"完成主讲课程课时系数"、"著作重版系数"、"核心期刊论文系数"、"论文被检索引用系数"等若干新的评价指标；提出了比较完整的教师的教学、科研、社会服务等工作业绩的量化方法；以此为基础，建立了评价结果的综合方法，通过对评价结果的标准化处理，运用指标加权综合法，解决了不同类别、不同量纲指标的评价结果的可加性和可比较性问题，实现了硬评价结果和软评价结果的融合和综合评价；探讨了指标体系有效性、一致性、灵敏度分析的检验方法。

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

The result shows that the repeatability of the method is within the range of the allowable repeatability error. The yield of recovery of standard sample is 95%~105%, and the consistency of results is better and the different of two results is less titan 84 in comparison with ASTM D 5762-95 dilution method.

阐述方法原理，考察方法的重复性在允许重复性误差范围内；标准样品的回收率在95%~105%；与ASTM D 5762-95的稀释法比较，结果一致性较好，两种结果的差值小于84个单位。

The operational principle of electro-optic ADC(analog-to-digital converter) is presented in the paper.

简要介绍了电光ADC的原理，分析、比较了光相位编码的全光ADC及利用光时分复用技术、光波分复用技术、脉冲时域展宽技术的电光ADC的结构及性能。

According to the analytic hierarchy process, the index system, which is used to assess the water-using situation is presented, and the method of determining in the index weight is presented.

所以本文依据层次分析原理建立了企业合理用水评价指标体系，给出了标准企业赋权方法，并在炼油行业中得到了实际应用，取得了比较好的效果。

Firstly, it discusses the principle of adaptive interference chancellor, including broad band signal and narrow band signal; Secondly, it analysises one common algorithm used in adaptive interference chancellor, that is, LMS algorithm and its anamorphosis algorithm especially normalized LMS algorithm pointing out their relationship. After then, the paper talks about the structure and reality of canceling broad band noise in narrow band signal and narrow band noise in broad band signal and gives it's result simulation analyzing the factors affecting the power of the algorithm. In the last party, it gives the hardware design and assembly language software design using TMS32OC3 1, including the result of simulating.

首先，本文讨论了自适应干扰对消的原理，并对窄带信号和宽带信号两种进行了分别分析；然后本文对自适应干扰对消中常用的算法—LMS算法进行了分析，同时也讨论了LMS算法的变形算法，尤其是归一化LMS算法，并指出了这些算法的相同和不同之处；此后，本文讨论了窄带信号中的宽带干扰对消和宽带信号中的窄带干扰对消的结构及实现方法并给出了住址的结果，分析了影响干扰对消效果的因素；在论文的最后，给出了用TMS320C31实现窄带信号中的宽带干扰对消的硬件设计和汇编程序设计，以及汇编语言程序的结果，并就此结果与高级语言程序的结果作了比较。

Methods On the conditions of strong acid and calefaction,urea can react on antipyrine and diacetyl monoxime and become yellow which can be determined by colorimetric analysis in 450 nm with the ALLIANCE FUTURA continuous flow injection auto analysis system.

方法根据尿素在强酸和加热条件下与安替比林及二乙酰一肟反应呈黄色，在450nm比色定量的原理，选用FUTURA流动注射分析仪对游泳池水中的尿素进行测定，进行余氯干扰试验，并将该方法与二乙酰一肟安替比林法进行比较。

This article introduces three kinds of signal channel and gives some simulation results based on Rayleigh channel.

文中所有信号的仿真结果都是在Rayleigh信道下得到的。通过对MIMO传输矩阵的数学变换，我们可以得到一种比较简单的一对一的传输系统，这对理解MIMO的传输原理以及传输系统的仿真应用都有比较好的实用价值。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。