异步计算机

The system developed by the author consists of a 7-holes pitot tube, a stepping motor, seven pressure transducers, an analogue amplifier, a computer data acquisition card, a switch voltage output circuit and a data processing system.

本文研制了一种七孔探针三维自动测速系统，该系统由球形七孔探针、异步步进电机、压力传感器、模拟放大器、计算机数据采集、开关量输出及数据处理系统组成。

ABSTRACT Discrete Event System is a kind of complex system characterized with asynchronism, concurrency, interaction, etc.

离散事件系统是一类异步、并发、交互影响的复杂系统，有关离散事件系统理论与控制的研究已有近二十年的历史，随着计算机技术和控制理论的发。。。

The paper gives some last issues in group communication field and an asynchronous computer conference model, which is used to support informa tion sharing.

异步计算机会议模型的分析和改进丁伟，顾冠群（东南大学计算机科学与工程系南京210096）摘要本文首先介绍了群通信领域的发展近况和主要用于支持信息共享的异步计算机会议模型。

Keywords :Three-phase asynchronous motor ,computer auto test system ,Intelligence instrument bearing ,Communication facility ,Electric power electron technique .

关键饲：三相异步电机，计算机自动测试系统，智能仪器仪表，通信设备，电力电子技术。

Simultaneously, the system also has with the computer asynchronous serial communication interface based on the programmable logic device CPLD.

系统包括模拟开关、测量放大器、AD转换器、CPLD中心逻辑控制器、掉电数据保存单元，系统实现了通过CPLD编程完成与计算机串口间异步串行通信功能。

With Asynchronous Transfer Mode, Fast Ethernet, and FDDI, today's network planner has three completely different ways to accomplish essentially the same thing: getting data from one computer to another fast.

有了异步传输模式、快速以太网和FDDI，今天的网络计划人员就有三种完全不同的方法完成一件基本上相同的事情：快速地把数据从一台计算机送到另一台计算机。

MATLAB language is used to develop the computer simulation program by means of the dynamic mathematical model of three - phase induction motors in phase quantities, The program is applied to series asymmetrical resistance starting operation process of three - phase cage - type induction motors in one phases or two phases of the stator circuit.

为了得到起动特性，根据三相异步电动机在相坐标系下的瞬态数学模型，编写计算机仿真程序，通过实例对三相笼型异步电动机的定子电路一相串联电阻以及两相串联电阻时的起动过程进行仿真计算，对仿真结果进行比较分析；用对称分量法分析定子电路一相串联电阻以及两相串联电阻时的不对称系统，初步计算起动电阻的数值，然后通过计算机仿真的调整来较准确地加以确定。

Then detailedly introduces the principle of pole-changing modulating speed and design feature in times pole proportion and non times pole proportion in the Mixed pole-changing simplex winding multispeed asynchronous motor , carry on discuss to the main parts of electrical machinery electromagnetism computation; by using VISUAL BASIC under WINDOWS platform for computer-aided design method for the mixed pole-changing simplex winding multispeed asynchronous machine, carries on profound analysis for the computer-aided design in the following aspect such as rotor and setting flush piece size, groove shape size, the rotor and setting winding connection, and start performance.

本文在介绍了单绕组多速电动机的概况，阐述了目前多速电机的发展现状与前景；利用槽号相位图以及混相原理对变极绕组进行了研究，确定了绕组的混相方案；并详细地介绍了混相变极单绕组多速电机在倍极比与非倍极比时的变极调速原理以及设计特点；对电机电磁计算的主要几个部分进行了讨论；介绍了使用WINDOWS平台下的VISUAL BASIC对混相变极单绕组多速异步电机的计算机辅助设计方法，对混相变极单绕组多速异步电机的定转子冲片尺寸、槽形尺寸、定转子绕组接法、定转子相带、起动性能的几个方面的计算机辅助计算进行了深刻分析；最后，对混相变极单绕组多速异步电机的样机检测试验结果进行了分析。

This paper introduces the design and imp lementation of an asynchronous-communications system which emp loys TL16C554A as its core hardware, including the selection of the asynchronous-communications elements, the circuitry design, the temporal logic and software realization.

根据微型无人机飞控计算机与外围多个设备进行通信的需要，介绍了由 TL16C554A 芯片组成的多路异步串行通信系统的设计与实现，包括扩展异步串行接口的方案选择、硬件电路设计、时序逻辑实现及软件实现。

By far the most popular serial interface between a computer and its CRT terminal is the asynchronous serial interface, and between a circuit switch and its telephone terminal, the synchronous one.

在计算机与其显示终端之间最为常见的串行接口是异步串行接口，异步串行接口，而在电路交换机与其电话终端之间最为常见的串行接口是同步串行接口。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。