查询词典 high-speed transmission

Within this context, four specific areas are addressed:(1) By means of finite integration technique, a new kind of the first order partial difference equation is derived from the original disperse transmission line equation of the uniform waveguide's. As it is the kind of one dimension Dirichlet's boundary problem, it is convenient for us to solve this equation from the leapfrog scheme. Because computation is carried out in one dimension, both high calculation efficiency and precision have been obtained in this method. Meanwhile, this method provide us a different selection to simulate the transient response of waveguide with non-simplical, for examples cylinder and elliptic waveguide, and avoid solving the second order equation, or using finite difference time domain to simulate a three dimension problem, sometimes the latter precision is not satisfied with the need, or low efficiency.

在这一研究内容下，主要研究四个方面的问题：(1)在完成金属波导传输线方程时域形式的基础之上，应用有限积分技术，把波导特征模式的色散传输线方程，化简为一组新的一阶偏微分方程组，该边值问题属一维Dirichlet边值问题，从而便于用蛙跳格式求解，由于是在一维中计算，该方法具有很高计算效率和精度，从而避免了以往为得到金属波导中特征模的时域响应特性，须要求解二阶方程，或用时域有限差分方法求解三维问题的方法，对于后者来说，计算有时是不准确的，或是很耗时的例如计算诸如圆波导、椭圆波导等其它复杂形状的波导。

In South America, countries such as Brazil, Ecuador and Peru are vaccinating against yellow fever as part of the routine childhood immunizations in enzootic areas and regions with a high risk of transmission of the disease.

在南美洲，巴西、厄瓜多尔和秘鲁等国已将黄热病预防接种作为地方性动物病地区和本病传播高危地区常规儿童免疫接种的组成部分。

Catch-up immunization campaigns in all age groups have been implemented in Guyana and Trinidad and Tobago, and within enzootic areas and regions with a high risk of transmission of the disease in Brazil and Ecuador.

圭亚那和特立尼特和多巴哥已在所有年龄组实施追踪免疫战役，而巴西和厄瓜多尔则在地方性动物病地区和本病传播高危地区推行。

In this paper the impacting extent of equivalent inductances of transmission lines and transformers as well as that of high voltage shunt reactor on GIC level evaluation by DC equivalent model of power network are analyzed, and by means of simulation the impacts of transformer winding connection modes and structure of transformer cores on equivalent inductance of transformer are researched.

文章分析了线路等效电感、变压器等效电感和高压并联电抗器等效电感对采用电网直流等效模型评估GIC水平所产生误差的影响程度，通过仿真计算分析了变压器绕组联结组别和变压器铁心结构对变压器等效电感的影响，最后针对我国电网的特点，提出了用于评估超、特高压电网电磁感应电流水平的电网等效模型。

The most efficient transmission of power was found by paying meticulous attention to the dimensions of the gears: the smallest escapement possible was used for such a high quality calibre.

最有效率的动力传输来源于对齿轮的尺寸的严格把握：高品质的机芯中使用了最小的擒纵系统。

The two proposed systems have high reliability,good expendability and rapid data flows attributed to parallel data transmission.

系统通信速度快，尽量使所有的数据交换并行进行；可靠性高，某一设备故障不会影响其他设备正常运行；组态灵活，可以在线修改或增减系统配置。

In order to obtain accurate experiment data for researching on transmission efficiency of the high power laser power conditioning system, the structure of the controlling, measuring system and its real-time measure method for the characteristic data during the instantaneous discharging process of the xenon flash lamp were presented.

为了向激光驱动能源系统传输效率的研究提供可靠的实验数据，研究了强激光驱动器能源系统中氙灯瞬态放电特征数据进行实时检测的方法和测控系统结构。

The objectives of this study were to develop a wireless sensor network technologies for agrometeorological disaster early alarm system and processing system. In this study, the foehn with a high temperature and low humidity has been monitored. The wireless sensor acquisition module ZigBee has been used to monitor the climate conditions combined with a GPRS wireless transmission module to construct wireless disaster alarm sytem. Graphical programming computer software package LabVIEW 8.2 was used to develop the control and monitoring systems.

本论文研究目的旨在发展气象灾害预警及处理系统，以焚风灾害为研究对象，焚风为台湾农业气象灾害之ㄧ，每年发生次数频繁且不可预测，当焚风发生时，监控焚风产生的高温和低湿变化，透过ZigBee无线传输技术，可连结温湿度、光度及土壤含水率等感测器，并与GPRS模组结合，将资料即时传送至伺服平台，藉由LabVIEW程式监控环境变化，达到气象环境即时监测之目的。

Orthogonal frequency division multiplexing modulation is an effective method for high data rate transmission.

中文摘要： OFDM是实现高速数据传输的一种有效手段。

The article makes a comparison among different types of bus, bus transmission signal and several familiar topologies of front-end converters and load-end converters. Finally, the half bridge converter with full-wave rectifier based on the high-frequency parallel-type AC bus bar is chosen as circuit structure and optimized. The working mode under different condition of the circuit is analyzed and a mathematical model is set up under continuous current mode. Simulation result is used as comparison.

通过对比不同类型的母线、母线传输信号以及各种常见的前端变换器拓扑和负载变换器拓扑，确定了基于并联型高频交流母线的半桥变换器加全波整流作为电路拓扑，并优化了电路的结构，分析了基于不同工作状态下的电路结构并建立电流连续模式的数学模型，并与软件仿真结果进行对比。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。