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The design of a nonmental ultrasonic detector was introduced. The detector was based on EP2C20 series FPGA chip,through adding NiosII soft processor and other interfaces to FPGA ,equipped with high precision data collection system and TFT LCD module and so on.The system was constituted.It including ultrasonic eradiating,receive sychronously,audio parameter detecting automatically,data analyse and process,display result timely,data storage and data output circuits.For the developing of imaging,intelligent and automation of ultrasonictesting ,a very good foundation is established by the system.

介绍了非金属超声检测仪的软硬件设计方法该仪器以EP2C20系列FPGA芯片为核心，通过在FPGA中加载NiosII软核处理器和其他外围接口电路，配合高精度数据采集系统TFT液晶显示模块等设计而成该仪器集超声波发射同步接收声参量自动检测数据分析处理结果实时显示数据存储与输出等功能于一身，为数据的进一步分析处理和实现超声检测的图像化智能化自动化奠定了良好的基础

The sufficient conditions to guarantee robust exponential stability for the closed-loop systems are obtained based on Linear Matrix Inequality, moreover, the approach of design of robust H# output feedback controller is introduced.3 The problem of reliable H# control for a class of Lur"e systems with polytopic uncertainties is studied when all control components are operational as well as when some control components experience failures, the design approach of reliable H# controller is also obtained.4 Considering a class of uncertain Lur"e singular system with time-delays, the problem of robust stability is investigated based on Barbalats Lemma and nonsingular linear transformation of model reduction.

针对一类不确定Lur'e奇异时滞系统，基于Barbalat引理以及非奇异降阶变换，讨论了Lur'e奇异时滞系统的鲁棒稳定问题，提出了鲁棒H_∞状态浙江大学博士学位论文反馈控制器的设计方法。5、针对一类具有饱和执行器的不确定Lur'e奇异系统，提出了时滞依赖的鲁棒稳定与鲁棒二次镇定的充分条件，所的结果不需要参数的整定。6、针对任意协方差有界的有色噪声，讨论了一类不确定Lur'e奇异系统的鲁棒凡滤波问题，得出了鲁棒几滤波器设计的充分条件。7、针对一类不确定Lur'e时滞系统，通过线性变换，把它转换成奇异系统，根据奇异系统鲁棒控制理论所得出的鲁棒稳定与鲁棒镇定控制器设计的充分条件具有很小的保守性。

The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output ports.

低而平坦的通态电阻允许最小的传播延迟，并支持对数据的输入，轨到轨切换/输出的端口。

Based on the interference characteristic, the sidelobe cancellation in time is presented and the procedure is designed, which achieves good results that the detection distances of OSMAR is increased by over 40km. At last the dissertation summarizes the application of beamforming in HFSWR, its effect and defects. 5 The dissertation discusses the application of orthogonal expansion method in HFSWR. At first, the traditional OE algorithm is introduced, and the output form is concluded. Then the dissertation discusses the influence of OE method on target signal.

首先介绍了阵列天线的方向图，接着阐述了波束形成的基本原理，然后引入了自适应波束的概念，讨论了确定权函数的准则，介绍了自适应波束形成在高频地波探海雷达中的应用和兼顾目标信号的波束形成；重点介绍了自适应旁瓣对消的原理和权系数计算方法，结合高频地波探海雷达数据特点，设计了在频域用旁瓣对消法消除射频干扰的处理过程，给出了处理结果，并对其效果进行分析，进而提出在时域进行分段旁瓣对消的新方法，设计了处理流程和计算方法，然后给出处理结果，该方法能提高OSMAR探测距离40km以上。

Based on the ATMEL company's AT89C52 single chip microprocessor, the whole system consists of keyboard and display circuit, output control signal circuit, alarm circuit and so on.

摘 要：本论文详细地论述了以单片机为处理器的密码锁自动控制器的硬件、软件设计和系统编程的问题。

Most products, which are produced by our manufacturing enterprises, focus on low-end markets and depend on output and comparative capability advantage to occupy markets.

我国制造业企业生产的产品多数集中在低端市场上，以产量和相对的性能优势来占据市场。

This method is independent on the system mathematics mode, and is only dependent on the system state output. It is also robust to parameter uncertainties and outside interfere.

该方法不依赖于系统的数学模型，只与系统的状态输出有关，而且对参数不确定性和外界干扰具有较强的稳健性。

Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

The output probability distribution of charge carrier multiplier structure from the electron multiplying charge-coupled device and its influence on image uniformity are studied. The probability model is established for the CCM structure of EMCCD. And based on the probability generating function and its properties, the probability distribution function of multiple CCM stages is deduced and its application in improving image uniformity is also discussed.

为了研究电子倍增电荷耦合器件中电荷载流子倍增结构的输出概率分布及其对图像均匀性的影响，建立了EMCCD中CCM结构的概率模型，利用概率生成函数推导了多级CCM倍增结构的输出概率密度函数，讨论了PDF在提高图像均匀性中的应用。

The Kalina cycle which uses ammonia-water mixture as the working-medium, has the characteristics of lower vaporization temperature and non-isothermal heat absorption. Therefore, the Kalina cycle is used in low temperature waste heat recovery based on introduction of operating principle. The primary parameters of Kalina and Rankine cycle are optimized by mean of genetic algorithm respectively, and the net output power of the two cycles is compared on the same condition.

卡林纳循环采用氨水混合物作为工质，具有气化温度低和非等温吸热的特点，因此，在简要介绍其工作原理的基础上将其应用于中低温余热回收，采用遗传算法对卡林纳循环和常规朗肯循环的主要参数进行了优化，在相同的余热条件下，比较了卡林纳循环和常规朗肯循环的净输出功率。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。