Stored procedure and its implementation of the course selection system based on J2EE

1、

Design and implementation of the credit-based course selection system on Internet

Internet网络选课系统设计与实现

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New Features of UML 2.0 and Its Application in the Course Selection System

UML2.0的新特性以及在选课系统中的应用

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Development of College Course Selection System Based on Web

基于Web的选课系统的开发

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4、

This paper summarizes the background, methods and results concerning the study of Wave control based upon the large space structures in recent years, and overviews some prospects for a few basic problems in structural wave control.

本文综述了近年来关于大型空间结构中波动控制研究的背景、方法和结果，并且就波动控制中的几个关键问题提出了展望。

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The traditional wave control signal is been transmitted though cable which has many limitations, such as serious interference between cables, low reliability, short transmission distance, big volume and complicated routing.

传统的波控信号采用电缆传输，存在电缆间相互干扰严重、可靠性低、传输距离短、体积大、布线复杂等诸多缺陷，不能满足新的系统性能要求。

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6、

To introduce the controlling temperature principle of the power regulator, the type selecting of the temperature show controlling instrument and the zero passage trigger periodic wave control mode for power regulator.

介绍调功器的控温原理，温度显示控制仪的选型，调功器选用过零触发周波控制方式。

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In allusion to rapidity of reactive power compensation, two current tracking control methods, called as current-hysteresis comparison control and triangle wave control, are investigated.

针对无功功率补偿的快速性这一特点，分析研究了目前比较实用的两种电流跟踪控制方法，即电流滞环比较控制方法和三角波比较方法。

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As the method of plasma aerodynamic actuation possesses obvious advantages of rapid response and flexible control, it may become a new promising means in shock wave control field.

由于等离子体气动激励方法具有响应迅速、控制灵活等优点，因此将成为激波控制领域一条新的有价值的技术途径。

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With the microchip of PHILIPS80C552, the controller realizes the functions of welding program control, welding current wave control and trouble-shooting.

控制器基于PHIL IPS的80C552单片机设计，具有焊接程序控制、焊接电流波形调制、故障诊断等功能；

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10、

Moreover, the influence of a magnetic field on shock wave control is studied and the test results show that magnetic fields greatly reinforce the shock wave control effect.

实验研究了磁场对激波控制效果的影响，结果表明施加磁场使得激波控制效果显著增强。

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In the aspects of electrical method, people bring forward surface tension transfer ( STT) wave control following the development of high-power electronics power apparatus.

在电方面的解决方案中，基于大功率电力电子器件的发展，人们提出了表面张力过渡（STT）波控法。

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In this paper, the new power source for CO2 short circuiting transfer is researched which is based on the technology of microcomputer and wave control.

本文以波控技术为基本指导思想，应用微机技术，对CO2焊短路过渡用电源加以研究。

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The particular approach considered is that of collocated, PD feedback wave control combined with modal control designed using pole placement.

考虑的具体方法是将PD反馈波控制与基于极点配置法设计的模态控制相结合。

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Based on the mechanical and aerodynamic methods of shock wave control, a method of plasma aerodynamic actuation is proposed.

在机械式和气动式激波控制方法的基础上，提出了激波控制的等离子体气动激励方法。

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Full Digitalized Biploar Double Modulation Wave Control Strategy for Voltage Mode High-Frequency Link Inverter

电压型高频链逆变器的全数字化双极性双调制波控制策略

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Seismic wave control for blasting of Shanhaiguan shipyard East dock pier

山海关船厂坞口东坞墩爆破地震波的控制

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Finally, a hybrid active vibration control approach is developed by synthesizing the modal control and wave control methods.

最后在模态控制和波动控制的研究基础上，提出基于波动控制和模态控制的复合控制方法。

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By using wire motion and current wave control project which special designed, author get the steady welding process.

送丝系统以交流伺服电机作为送丝电机，通过软件设计了焊丝运动曲线。提出了专门的送丝控制和电流波形控制方案，通过焊接参数配合焊丝运动，实现了稳定的低能量焊接过程。

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Computer Simulation of Wave Control on Inversion Power Source-Arc System in CO_2 Short-Circuit Welding

波控CO2短路过渡焊逆变电源&电弧系统的计算机仿真研究

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Traveling wave control for structure

结构的行波控制

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