逻辑电路

In the analysis of combinational logic circuit, should take into account gate delay time of the impact on the circuit.

在分析组合数字逻辑电路时，应该考虑门电路的延迟时间对电路产生的影响。

The characteristic of the method is that driving condition and clock pulse for flip-flops are obtained at first hand by means of the state transitio n drawingand that designing asynchronous sequential cir-cuits and synchr onous sequential circuits can be unified.

时序逻辑电路可分为同步和异步，然而采用传统的时序电路的设计方法时，即使是同步时序电路的设计也需要7步[3]，要进行复杂的计算来求状态方程、驱动方程，既繁琐又容易出错；对异步设计就更为复杂了。

A novel circuit with a narrow pulse driving structure is proposed for enhancing the noise immunity and improving the performance of wide fan-in dynamic circuits.

提出了一种利用窄脉冲发生器驱动输出级，以提高电路抗噪声能力，同时保持动态电路的高速特性的多输入动态逻辑电路。

The course provides the fundamental concepts used in the design of digital systems, including the methodology to design the combinational and sequential circuits with Boolean Algebra, Karnaugh map, and the logic elements, such as basic logic gates, latches, and flip-flops,etc.

本课程在提供数位系统设计所须具备的基础能力，包括学习以布林代数、卡诺图来设计组合逻辑与序向逻辑电路的方法，以及培养基础逻辑元件的应用能力，包括基本逻辑闸、栓锁器、与正反器等等元件。

The base of computer culture, c programmer, fundamentals of analog electronic circuits, fundamentals of digital electronic circuits, data structure, principles of computer composition, operating system, discrete mathematics, computer network, principles of microcomputer, 8086/8088 macro assembler language; multimedia technology; the principles of database; oopl( errorobject oriented programming language); fundamentals of compiling; software engineering; numerical computational method; mcs51/96 principle of single-chip computer; artificial intelligence; computer system organization; digital interface and digital circuits; java programming language; data structure; operating system; computer network; technology of electronics, etc.

计算机文化基础、c语言程序设计、模拟电路基础、数字逻辑电路基础、数据结构、计算机组成原理、操作系统、离散数学、计算机网络、微型计算机原理、8086/8088宏汇编语言程序设计、多媒体技术、数据库原理。面向对象语言程序设计，编译原理，软件工程基础，数值计算方法、mcs51/96系列单片机原理与应用、人工智能、计算机系统结构、数子接口技术与电路、数据库设计基础 java语言，数据结构，操作系统，计算机网络，电子技术等。还有一些选修的课比如：tcp/ip网络协议分析基础、oracl数据库原理，db2数据库原理等。

In the model design of protection unit, we realize easy and reliable circuit of protection and checkout with the help of the CPLD technology, and realize the latching circuit with the NAND gate. All these are to avoid the wrong action during the real operation.

在模板的保护单元设计中，在复杂可编程逻辑电路中设计了一种简单可靠的保护校验电路，外加与非门实现的闭锁电路，确保在实际运行中不会产生误动作。

Abstracts: To sample high speed random signals without drop, a design of O-shaped high speed random signals acquisition card based on the CPLD and its realization are presented. It consists of same three sets of acquisitive circuits, which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition, abandons vast of the redundant useless data at the same time, it only sends the useful data to the host computer by the way of DMA, so it is easy to processing the data. The design is concise and reliable. The sketch map of the logic circuit and the explanation of the main parts are presented. This design has been applied in the engineering project of sampling α nuclide.

为了对随机到来的信号进行不丢失的高速采集，提出了一种基于CPLD的随机信号环形高速采集卡的设计与实现；通过采用三套采集电路形成一个环形结构，可以对随机到来的信号进行不遗漏的高速采集，而且在采集过程中利用阈值的方法鉴别出有用信号，并舍弃了大量的冗余无用数据，从而只将有用数据以DMA的方式传于主机，便于进行信号的处理；电路设计简洁可靠，并给出了主要的逻辑电路示意图与主要部件说明；该系统已经应用在采集α核素的工程实践中。

A CMOS front-end ASIC for semiconductor radiation detectors is proposed.The ASIC comprises a charge sensitive amplifier,a gm-C type shaper,a peak detect and hold circuit,and two discriminators.The PDH and the discriminators,together with some logic circuits,provide the capability to reject trailing edge pile-up.The circuit has been designed in a 0.5?

提出了一种用于半导体辐射探测器读出的CMOS前端电路，该ASIC电路包含电荷灵敏放大器、跨导-电容型脉冲成形器、峰值检测/保持电路和甄别器，后两者结合一些逻辑电路实现了抑制脉冲成形器输出波形尾缘堆积的功能。

Based on an analysis of the timer structure on the C54x, a new design scheme of an adiabatic timer is presented using the theory of three essential circuit elements for adiabatic circuits and the characteristics of the clocked transmission gate adiabatic logic circuit and its adiabatic flipflop.

为了设计低功耗定时器，首先利用钟控传输门绝热逻辑电路设计绝热触发器，然后在分析C54X的定时器结构基础上，利用绝热电路三要素理论，结合钟控传输门绝热逻辑电路及其绝热触发器的特性，提出绝热定时器的设计新方案。

Featuring wider angle views than predecessors, a new "super achromatic" objective lens,"Phase Corrected" Abbe-Koenig prisms, light transmission of at least 91%, and nitrogen filled composite housings reinforced with fiberglass to assure high endurance. In September 1994 Zeiss announced the first "Contax" 35mm rangefinder camera with interchangeable lenses made since 1959; the "G1" features include auto focus with any of four optional lenses, TTL metering, automatic film advance of up to 2 frames per second, and a luxurious titanium body.

这些新品体现了公司技术成就的最新进展，拥有较以前产品更宽的视角，新型&超消色差&物镜，&相位修正&阿贝-科宁棱镜，至少91%的透光率，充氮加固玻璃纤维复合镜室，以确保产品的耐用性。1994年9月，蔡司又推出了自1959年以来的首款镜头可互换型&康泰克斯&35mm连动测距对焦相机；此款&G1&型相机包括自动对焦功能和可任选的四个镜头，晶体管逻辑电路测距（TTL，晶体管逻辑电路），每秒高达两帧的自动卷片功能，和豪华钛机身外壳。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。