并行计算机

To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.

双回转机构的步进电机控制电路由TDA1521音频集成功率放大器组成平衡桥式功率驱动电路，由计算机并行口经过锁存器构成脉冲分配器。

An efficient parallel algorithm, PMAR, which is based on share nothing architechure in multiple computers, is given to settle the problem of mining association rules in a distributed database or a very large database, An incremental updating algorithm for mining association rules, EUIA, which is based on algorithm LIDBSO, is proposed.

提出了一个基于多台计算机间无共享体系结构的高效并行采掘关联规则的算法PMAR，用于解决在分布式数据库中或在特大数据库中的关联规则采掘问题。

The study of coalgebraic methods, as one of the active areas for theoretical computer science in recent years, is widely used in concurrence computing model, automat theory, and the foundations of object-oriented technology.

共代数方法是近几年来理论计算机科学的研究热点之一，在并行计算模型、自动机及面向对象技术的理论基础方面有着广泛的应用。

The electrical channel used by the IBM AT and compatible computers to connect the computer's motherboard and peripheral devices, such as memory boards, video controllers, PC card modems, bus mouse boards, hard and floppy disk controllers and serial/parallel input/output devices.

IBM AT以及兼容机使用该电子通道连接计算机母板和外部设备，如存储板、视频控制器、PC卡调制解调器、总线鼠标板、硬盘和软盘控制器以及串行/并行输入/输出设备。

It is now well known that Cayley graphs play a very important role in the design and analysis of interconnection networks for para...

众所周知，凯莱图在计算机局域网及大规模并行处理系统的设计与分析中起着重要的作用。

It is now well known that Cayley graphs play a very important role in the design and analysis of interconnection networks for parallel processing and of local area communication networks.

众所周知，凯莱图在计算机局域网及大规模并行处理系统的设计与分析中起着重要的作用。

Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.

主要有以下几个方面：设计了基于GPIB的示波器控制系统，给课题的研究工作提供了一个良好的环境，它采用了多线程编程的方法，能够较好的实时显示当前波形并记录数据；设计了温度采集和数据记录系统，能够对16路温度信号进行并行同步的实时采集，用于HIFU剂量学研究中温度场检测和医疗评价；设计了相控阵相位延时电路并且通过调试，满足了课题的相位控制的要求，在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制；实现了串口通讯模块，为各项设备与计算机之间的通讯提供保证，它提供同步和异步的通讯能力，使系统能够可靠稳定的传输数据；建立了数字量控制模块，为上层应用程序提供一致的方法使用数字接口控制外部仪器，它使用中断的方式来接收输入或输出设定的开关量信号，从而得到或设定各种仪器的状态。

Before the research, we carried out the project of"CoEditor: A Cooperative Editing System", for the contrast between CoEditor and Editor is easy to do and can be used to explain the differences between human-human interaction and human-computer interaction clearly.

在研究模型之前，我们首先进行了"协同编辑系统CoEditor"项目的研究，因CoEditor和一般编辑软件很容易对比，能较好地解释人-人交互与人-机交互之间的差异；"八六三"子项目"支持并行工程的计算机会议系统"的研究，更深化了我们对人-人交互界面的认识；这些项目的研发工作，为我们开展界面模型的研究奠定了基础。

It is well known that the contradiction between the finiteness of single computer"s technology development and the infiniteness of requirement for science computing determines that multi-computers" parallel will be the development of computer.

众所周知，计算机单机技术发展的有限性和科学工程计算需求的无限性之间的矛盾决定了计算机发展必然走上多机并行的道路。

The interference characteristics of a channel or channels are a measure of the input/output computer overlapping capability of a computer system.

一个通道或多个通道的干扰特性是对一个计算机系统的输入输出计算机的并行操作能力的度量。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失