查询词典 asymptotic efficiency

The parallel combinatory SS communication system is a new approach for information transmission with higher efficiency.

并行组合扩频通信是一种高效率的新型扩频通信方式。

In addition, the effects of parallel efficiency caused by network communication in parallel DFT and traditional one were also compared.

最后，根据理论研究和实际测试的结果，总结了利用PC机群系统进行并行DFT运算的可行性，得出了一些有意义的结论。

The thesis further discussed the effect of the network communication on the parallel computing efficiency.

同时，也比较了在并行算法设计中网络通信因素对并行算法效果的影响。

This paper determines the design idea of combining VISC with structural optimization design. Problems which existed in structural optimization design are analyzed and contents of optimization process are determined. Calling and dominating calculation program written in FORTRAN in the development environment of Delphi are realized by the techniques of FORTRAN/Delphi mixed-language programming and multi-threaded application. Parallel coordinates visualization technology is deeply researched and applied in software exploitation of optimization process. Essential programs of VISC software are compiled. Approaches which can improve efficiency of optimization are discussed. In the end, functional modules are integrated and a typical computational example is verified.

本文通过对结构优化设计和科学可视化的研究，确立了天线结构优化设计与科学计算可视化技术紧密结合的思路；根据天线结构优化设计的特点，针对优化设计中存在的问题，对系统结构优化的总体框架进行了分析和论述，确定了优化过程可视化的具体内容；通过FORTRAN与Delphi的混合语言编程实现了在Delphi环境下对FORTRAN计算程序的调控，充分利用了原有FORTRAN程序资源；对平行坐标技术进行深入研究，并将其应用于优化过程可视化模块的软件开发中，实现多维数据空间的可视化；编写优化计算过程可视化软件的核心程序；探讨了提高优化效率的途径；对基于可视化的天线结构优化设计软件系统进行集成，针对某天线进行了算例验证。

Featuring a bio-design, which lends ideally to aerodynamic form, the Mobula integrates smooth winglets, resembling a ray's progression through the water, to increasing the overall efficiency, while the windows run parallel to the ground and curve around the rear of the vehicle.

具有生物设计，这使得对空气动力学的理想形式， Mobula整合顺利翼梢小翼，类似射线的进展通过水，提高整体效率，而在Windows运行平行曲线周围地面和后方的车辆。

Meanwhile, parallel computing has been accomplished in the multiprocessor message parallel interface environment, and great computing efficiency has been enhanced.

与此同时，本文还在多处理器消息传递界面环境下，实现了遗传算法的并行计算，极大地提高了计算效率。

It is found that thediffraction efficiency of the beam whose projection is antiparallel to the optical axis isdifferent from that of the one whose projection is parallel to the axis inphotorefractive crystals with unidirectional fanning.

发现具有单向光扇的光折变晶体其二波耦合衍射效率沿正负光轴两个方向明显不等。

In order to improve the machining efficiency and surface quality of micro wire electrical discharge machining, this paper developed a new Micro WEDM pulse generator by applying the principle of parallel resonance.

为了提高微细电火花线切割效率和表面质量，应用并联谐振电路原理，研究出新型的并联谐振型微细WEDM脉冲电源。

Shown by the analysis results, the former is used to solve the problem of database system termination, while the latter, on the foundation of remaining the confluence, improves the efficiency of parallel rule process.

分析结果表明，前者在一定程度上解决了数据库系统的终止性问题，后者在保持合流性的基础上提高了规则并行处理效率。

MIMO, on the other hand, is capable of creating an individual parallel channel for the transfer of multiple data streams while at the same time increasing spectral efficiency without any need for more bandwidth.

而MIMO技术能够在空间中产生独立的并行信道同时传输多路数据流，在不增加系统带宽的情况下增加频谱效率，有效地提高了系统的传输速率。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。