逻辑电路

Barker is synchronized code in digital communication. In this paper, design methods of barker 7 data transmitting card arc presented. The application background of Barker are introduced. The used methods of MCU 80C196KB and CPLD EPM7128SLC are set forth. Transmitting card is designed and implemented by using interface circuit and above-mentioned chips. The control process of barker 7 is introduced under PC parallel-port EPP mode. The partial design circuit is given, the cards is proved to achieve the generation and output of 7 Barker through practice. it can satisfy testing requirements of a certain Russian-made airborne product.

巴克码是数字通信中常用的信息同步码型；提出一种7位巴克码数据发送卡的设计方法：介绍了巴克码应用背景，阐述80C196KB单片机、EPM7128SLC可编程逻辑器件的使用方法，利用上述芯片和分立元件设计并实现7位巴克码数据发送卡；介绍了并口EEP模式下巴克码的控制过程，给出了巴克码数据发送卡部分设计电路，介绍了码型实现过程；通过实践证明了该发送卡能够实现7位巴克码的生成与输出，完全满足某型俄制机载产品测试要求。

Based on the transmission function theory, the realization of CMOS circuits for basic symmetric ternary operations are discussed.

基于作者提出的传输函数理论，本文讨论了基本对称三值运算的CMOS电路实现，并已用计算机模拟证明它们具有正确的逻辑功能与理想的DC传输特性。

It is proven that the binary logic system realized with these gates is totally self-checking for mid-seeking faults.

论证了用这些门电路所构成的二值逻辑系统对所有向中型故障是完全自校验的。

The intelligent cablefault location instrument has many peculiarity by testing fault cable in laboratory ,for examplethe measure range is 0 ～ 60kM, the relative error is smaller than 0.5%. In-systemProgramming logic device which will be useful in debuging the circuit board is used.Measurement date can be displayed by the LDE showing, and it has the USB port supporting"Plug and Play" with electricity, the highest rate is 12Mb/s.

经过模拟电缆电路定点实验得出该测试仪具有以下特点：测量量程为 0～60km，相对误差不大于 0.5%；有利于方便调试的在系统可编程逻辑器件的应用；LED 显示器可动态显示测量结果；USB热插拔通信接口功能，传输最高速率为 12M。

The results show that the proposed comparators are of correct logic function.

结果表明，所设计的电路具有正确的逻辑功能。

The objective of this article series is to build the following four essential functionalities, i.e.

本系列文章的目标是建立在以下四个机器人的基本功能，即逻辑和电路。

The layout make the logical of asynchronous metrication reversible counter more simple, so that the work has more advantages.

该设计更加简化可逆十进制的逻辑，可以省去更多电路，对于设计更为复杂的集成电路可以直接使用，提供了方便。

C A novel universal loss-reduce scheme, namely Dead-Band-Logic is presented. When a traditional method is used, the loss-reduce can only be realized via Space-Vector-Modulation , and the effect of loss-reduce depends on the power factor angle. The DBL can implement loss-reduce only by digital circuit and only need to know the direction of three phase currents.

论文中提出的降耗逻辑只需知道三个电流的方向，仅用数字电路就能实现降耗，此法能自动适应功率因数角的变化，适合于单片机控制，也适合于模拟控制。

Through the simulation of large-scale circuit simulation proved that use the crossover tearing technology could detailed network structure, simplify the diagnostic process, and the neural network can parallel deal with the diagnosis information, and the logic operation can judge the information of the multi-fault.

通过对大规模模拟电路的仿真证明，使用交叉撕裂明细网络结构，简化诊断过程，且运用神经网络组对信息进行并行处理，逻辑分析运算对多故障信息进行处理判断，大大提高了故障诊断速度，减小了测前工作量。

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。