特性

Voltage Source and Current Source, Thevenin Theory, Trouble Shooting, Characteristic Curve of Diode, Diode Models, Rectifier Circuits, Input Filtering Capacitor, Voltage Multiplier Circuits, Limiter and Clipper Circuits, DC Clampers and Peak-to-peak Detectors, Zener Diode, Zener Diode Rectifier, Photoelectric Devices, Collector-Emitter Junction, Transistor Characteristics of common-emitter, Base Bias, LED Dirver, Establishing a Stable Q-point, PNP Transistor Biasing, Transistor Biasing, Coupling and By-Pass Capacitors, AC Emitter Resistance, Common-Emitter Amplifier, Other Common-Emitter Amplifiers, Cascaded Common-Emitter Amplifiers, AC Load Line, Emitter Follower, Class B Push-pull Amplifiers, JFET Characteristic Curve, JFET Biasing, JFET Amplifier, VMOS Circuit, Differential Amplifier, Operational Amplifier, Non-inverting Feedback, Negative Feedback.

电子学实验( S0704)(1，1)/应用电子学实验( S0472)(1，1)电压源和电流源、戴维宁定理、故障排除、二极体特性曲线、二极体近似模型、整流电路、电容-输入型滤波器、倍压电路、限制器电路和峰值检测电路、直流定位器与峰对峰检测器、齐纳二极体、齐纳二极体整流器、光电元件、集射极接面、集极特性曲线、基极偏压、LED驱动器、建立一个稳定的工作点 Q 、 PNP 电晶体偏压、电晶体偏压、耦合及旁路电容、交流射极电阻、共射极放大器、其他 CE 放大器、串接共射极放大器、交流负载线、射极随耦器、 B 类推挽式放大器、 JFET 特性曲线、 JFET 偏压、 JFET 放大器、 VMOS 电路、差动放大器、运算放大器、非反向电压回授、负回授。

The essential problem of KBOOA are acquirement and organization of knowledge about the application domain. First of all, we recognize objects according to their outside characteristics and build stable concepts structures. In this way, the attributes and behaviors of any objects are treated as objects as well. The concepts are organized in hierarchies, the concepts' semantics are demostrated in the form of conceptual graphs. As hierarchy structure has inheritance, the system has ability to recognize and reuse concepts, analyze and reason the acquired information according to the existing knowledge, understand the problem space and present the system's functions and characteristics to the analysts and users in the form of scenarios. The main means of transforming informal requirements to formal ones is to recognize objects according to their outside characteristics, recognize attributes according to their functional dependence and describe the semantics of objects, behavior and attribute's relationship's because there is a automatic map from the descriptions of attributes and behaviors to class structures. It is difficult to transfer from OOA to OOD, We disscussed the modularity of Object-Oriented programs according to the principles of software engineering and presented the methods to decrease couplings and increase cohesions, i.

KBOOA以知识的获取、组织为中心问题，首先依据对象的外特性识别对象，并将属性和行为也作为对象处理，从而建立起较稳定的概念结构；KBOOA以层次的方法组织概念，以概念图的形式描述概念的语义，利用层次结构的继承特性，使系统具有识别、重用概念的能力，根据已有知识对系统所获信息进行分析、推理，产生对问题空间的理解，并以想定的形式向分析师、用户展示系统功能、性能，从而构成了一个交互式的，具有一定智能的需求分析环境；依据外特性识别对象，依据函数依赖关系识别属性，用概念图描述对象、行为及属性关联，是将需求由非形式化形式向形式化形式转换的主要手段，使属性及行为描述可向类型结构自动映射，为提高需求分析的自动化程度提供了依据。

We adopted DCJTB and TBPe to make two homochrom OLEDs as the red and blue dyes, the configurations are respectively as follows: ITO/CuPc(15nm)/NPB(50nm)/Alq3(30 nm):rubrene: DCJTB(6.1)/Alq3(30nm)/LiF(1nm)/Al(100nm),(x=2,3.7,4.2,5 nm,the dopped concentration is 1.1%,2.1%,2.3% and 2.8% respective -ly) for red OLEDs and ITO/CuPc(150 nm)/NPB(500 nm)/ADN(300 nm):TBPe(30 nm)/Alq3(350 nm)/RbF(20 nm)/Al(1,000 nm)for blue OLED. We discussed the electroluminescent mechanism and the infection of the dopped concentration of rubrene on the perform -ances of red OLEDs; And after a lot of designments and manufactures we found an integrated and reasonable scheme,and carried out some test -ings and discussions on the characteristics of current -voltage curve, efficiency- voltage curve and luminescence-spectrum curve and so on. Subsequently,we made two kinds of WOLEDs.

然后分别采用以DCJTB和TBPe作为红色、蓝色发光染料制作了两种单色OLED器件，制备了器件结构为ATO/CuPc(15nm)/NPB(50nm)/Alq3(30 nm)：rubrene：DCJTB(6.1 nm)/Alq3(30nm)/LiF(1nm)/ Al(100nm)，(其中x=2、3.7、4.2、5nm，rubrene的掺杂比例为1.1%、2.1%、2.3%、2.8%)的红光OLED器件和结构为ITO/CuPc(150 nm)/NPB(500 nm)/ADN(300 nm)：TBPe(30 nm)/Alq3(350 nm)/RbF(20 nm)/Al(1，000 nm)的蓝光OLED器件；讨论了红光OLED器件的发光机理，以及rubrene的掺杂浓度对发光效率等性能的影响；从蓝光器件的设计和制备入手，摸索出了一套完整而可行的制作方案，分别对器件的电压-亮度特性、电压-发光效率特性及发光光谱等特性进行了测试与讨论。

The 5th chapter studies the modeling of fractal wireless traffic based on researches results of the fractal network traffic theories, fractality identification, and the aggregating traffic properties.

第五章基于分形网络流量理论、分形特性检验与估计和自相似业务流合成特性的研究结果，进行分形特性无线网络流量建模的研究。

In order to study the effects of cold-rolling deformation on damping characteristics of TiNi alloys and the relationship between the damping characteristics and the microstructure, the damping characteristics of martensite for Ti_(50)Ni_(50) alloy have been investigated systematically by DSC, TEM, DMA and sound internal friction test.

为了探讨冷轧变形对TiNi合金阻尼特性的影响，及TiNi合金马氏体的阻尼特性与组织结构之间的关系，采用示差扫描量热分析、透射电镜分析、动态机械分析和音频阻尼测试方法，系统研究了冷轧变形后Ti50Ni50合金马氏体的阻尼特性。

The static and dynamic characteristics of the beam of a gantry-type machining center are analyzed by means of ADAMS and ANSYS. Considering effect of gravity and cutting forces, the static deformation of the beam is obtained after calculating the interacting forces between the guide and the slide block by ADAMS. Moreover, the contact parameters of the guide surface are acquired by dynamic tests and parameter identification, then they are applied to the simulation model of the beam-slide box system, whose natural frequencies and modal shapes are achieved by modal analysis. Furthermore, the effect of changes of the contact parameters on the dynamic behavior of the beam-slide box system is also investigated.

对一种国产龙门式加工中心的横梁关键部件，采用机械系统多刚体动力学仿真软件ADAMS和有限元分析软件ANSYS进行了静动态特性分析；在考虑重力和切削力作用下，由ADAMS计算出导轨与滑块间的作用力，从而计算出横梁部件的静态变形；通过动态测试和参数辨识方法获得导轨结合面特性参数并将其应用到横梁滑箱系统整体有限元模型中，经过模态分析得到系统固有频率和各阶振型图，并进一步分析了结合面参数变化对横梁滑箱系统整体动态特性的影响。

According to the aforementioned features and basing a new the oretical framework of measurement on ice-thickness and beneath-ice-surface water levels by distinguishing the physical characteristics of air, ice and water, the paper analyzes the laws of the resistance and capacitance of ice with conductive impurity, mixture of ice and water, water and air change as temperature changes, draws conclusions such as ice as a weak conductor, monotonic feature of ice and water, and introduces the design of the structure of a new-type of ice-thickness sensor, its measurement method, and its application in practice.

基于这一特点，笔者提出了利用空气、冰与水的物理特性差异实现对冰层厚度及冰下水位接触式检测的新思路，对含有导电杂质的冰、冰－水混合物、水、空气的电阻、电容特性随温度的变化规律进行了初步分析，并得到冰的弱导电性质和冰与水的电容区间单调特性，据此提出了冰层厚度传感器结构及其冰厚检测原理，介绍了新型冰层厚度传感器在实践中的应用。

Based upon the principle of impulse excitation test, the vibration and sound response of the metallic circular plate are studied, and then an effective way is suggested to improve its dynamic behaviour.

本文基于脉冲激振试验原理研究了金属圆板结构的振动特性和声响应特性，提出了改善其动态特性的有效途径。

In this paper, a simple, accurate and intuitionistic formula and method for calculating and analyzing the I-V characteristics of a pn junction is deduced. The method is used to calculate and analyze the I-V and RD-V characteristics of two typical HgCdTe loophole junctions. Some important parameters which reflect the characteristics of a diode, such as surface Ohm leakage conductance and the distribution of the ideal factor n with voltage are obtained.

本文推导了一种可简便、准确、直观计算和分析pn结I-V特性的公式和方法，并应用该方法对两类典型HgCdTe环孔pn结的I-V、RD-V特性进行了计算和拟合；得到了表面欧姆漏电导、二极管理想因子n随电压的分布等反映二极管结特性的重要参数。

Tropism properties of particles are used to describe stability and distributing properties of particles to depicting compactness, evaluating parameters of coarse particle in principal axis direction, asphalt mastics film thickness and particle area are used to e-valuate the compacting characteristics.

针对旋转压实法，利用不同压实功作用成型试件模拟压实过程，采用数字图像处理技术，研究沥青混合料的压实成型特性，提出了以集料颗粒的取向特性描述沥青混合料的稳定性，以集料颗粒的分布特性来反映混合料的密实程度，定义了集料颗粒主轴方向、沥青砂胶膜厚及颗粒面积比等参数来进行评价。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。