开发系统

The application and the problems of expert system and neural network in blasting field has been discussed in this paper .

本文首先讨论了专家系统和人工神经网络在拆除爆破领域中的应用以及存在的问题，探讨了将专家系统和人工神经网络结合起来开发功能更为强大的混合拆除爆破专家系统的必要性和可能性。

System booting is an important aspect in real-time embedded system,of which booting speed is one of the most important indexes.

系统引导是嵌入式系统开发过程中的一个重要环节，其启动速度是嵌入式系统一个重要指标。

This system is based on the fuzzy-control theories, designed with a horizontal monitoring model, taking a Single Chip Microcomputer as the core of data-processing, according to requirements of the embedded application of the computer monitoring system which can ensure the security and reliability of the bridge-building machine.

因此，给设备配备一个监控系统是非常必要的。本系统是以模糊控制理论为依据，设计水平监控模型；以单片机为载体按嵌入式应用的思路开发的计算机监控系统。

The system in the development process, attention to bring them into conformity with the operation of business processes, and strives to achieve a comprehensive system, GM, and makes the system does not only apply to an educational institution.

本系统在开发过程中，注意使其符合操作的业务流程，并力求系统的全面性、通用性，使得本系统不只适用于一家教育机构。

The system in the development process, attention to bring them into conformity with the operation of business processes, and strives to achieve system comprehensiveness, universality, makes the system does not only apply to an educational institution.

本系统在开发过程中，注意使其符合操作的业务流程，并力求系统的全面性、通用性，使得本系统不只适用于一家教育机构。

At last, web-based system off-site regulation information system is developed by J2EE platform, using Star join to implement multidimensional data model, and using BRIO as business intelligence application to multidimensional data analysis.

基于Web的非现场监管数据集市系统采用了J2EE平台进行系统开发，实现系统的三层架构。

Has been awarded a contract by BAE Systems Australia to provide a Synthetic Vision display, for the development of a rotorcraft brownout landing system.

水银计算机公司获得一份BAE系统公司澳大利亚分公司授予的合同，为开发旋翼机的警戒灯着陆系统而提供合成视觉显示系统。

When designed the project of mobile service system , basing on the characteristics such as the bulkiness of users ,variety of users's terminal device , etc , adopted Scalable Vector Graphics which is XML's dialects on graphics , developed an opening mobile service system through combining the portability of java .

在基于位置的服务系统方案设计中，针对该系统具有用户群庞大、用户终端设备的多样性等特点，采用XML在图形上的方言——SVG技术，结合Java的可移植性，开发了一个开放的基于位置的服务系统。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

It has advantage of low cost for group scrambling-descrambling and is benecial to multiple grade chargeable program development.

介绍了一种采用机顶盒方案的有线电视条件接收系统，它是基于射频处理的同步抑制分级群加解扰系统，具有群加扰系统的相对低成本和多级别利于收费节目开发的优点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。