Abstract: the kind of quantitative evaluation method suitable for engineering software is provided in this paper, based on the analysis of multiple software reliability models and the characteristics of Engineering software, and has been used in reliablity evaluation of a large engineering software. 文摘:在分析多种软件可靠性模型的基础上,结合工程软件的特点,提出一种工程软件适用的可靠性定量评估方法,并将其用于某大型工程软件的可靠性评估。
And FPGA with custom logic function and the high reliability of the characteristics can be very good solution to these problems, simultaneously it satisfy low cost and system integration. 而现场可编程门阵列(FPGA)所具有自定义逻辑功能和高可靠性的特点可以很好的解决这些问题,同时满足低成本和系统的集成。
It was shown by comparing with the other two structures that the spring-linkage structure had the same reliability and outstanding auto-return characteristics. 其中弹簧连杆结构可靠性与前两种相当,动作后自动回复是其最显著的特点。
By using this method, the reliability characteristics for the quantity of each testing system usable degree, the failure rate can be derived directly from the GO graph. This method also solves the practical problem of the reliability parameter calculation with shared signals. 应用文中方法,系统中各个测试系统的可用度、失效率等可靠性特征量可以直接由GO图计算,并解决了有共有信号时可靠性特征量计算的实际问题。
This system is small in size, low price, high reliability characteristics, and has richly interface circuit. To develop further base on the system, it can satisfy all kinds of mobile data transmission applications this needs strong, the large quantity of data transmission. 本系统具备体积小、价格低、可靠性较高的特点,并具备较为丰富的接口电路,可以以该系统为基础进行进一步的应用开发,能满足各类移动性强、数据传输量大的应用场合。
As the familiar power equipment, the diesel engine affects the safety of operation system because of its reliability and dynamic characteristics. 柴油机作为一种常见的动力机械,其动力性和可靠性直接影响着系统的安全运行。
In this paper, the bounding of storage states, relevant basic concepts and indexes of stor-age reliability are discussed according to the research and practice of tactical missile storage reliability and combining with characteristics of missile. 本文依据战术导弹储存可靠性的研究与实践,结合导弹的特点,论述了储存状态的界定,储存可靠性的有关基本概念和有关指标。
The reliability characteristics of fibre optic components for optical fibre communication systems are analysed. The way in which the computer is used to design the stand-by redundancy system of the light transmitter is given. 本文分析了光纤通信系统中元器件的可靠性,给出了光发射机备份冗余系统的计算机辅助设计方法。
A new experimental system for rock triaxial creep at high temperature and high pressure is introduced and its operational procedure, reliability, accuracy and characteristics are analysed. 本文介绍了一种用于高温高压岩石三轴蠕变实验的装置,并对其技术性能、实验精度、操作程序和可靠性等方面作了讨论。
Computer technology is the main technology in modern information age. Automaticity, celerity, currency and reliability are its primary characteristics. 计算机技术是现代信息社会的主要技术,自动性、快速性、通用性和可靠性是其主要特性。
Based on the analysis of multiple software reliability models and the characteristics of space engineering software, a quantitative reliability estimation approach suitable for space mission software is provided. 在分析多种软件可靠性模型的基础上,结合航天工程任务的特点,提出一种航天工程软件适用的可靠性定量评估方法。
A high degree of automation and color of the high accuracy and reliability characteristics compared with the work of staff. 枸杞色选机与人工手选相比具有自动化程度高、色选精度高以及稳定可靠等特点。
Using the model and shape parameter, the estimators of the various reliability characteristics under the usual stress ( S 10, S 20) can be obtained. 通过模型由此可求出正常应力(S10,S20)下各种可靠性特征量的估计。
Finally, the structural dynamic characteristics sensitivity is analyzed and a formula for calculating the sensitivity of the reliability constraints on dynamic characteristics is developed. 对结构动力特性进行了基于可靠性的灵敏度分析,导出了结构动力特性可靠性约束的灵敏度计算公式;编制了相应的程序,给出了具体算例。
As the important load center of power system, the establishment and evaluation of distribution system's reliability index has his characteristics. 作为电力系统的重要负荷中心,城市电网配电系统可靠性指标的建立及定量评估有其自身的特点。
Also, the product reliability characteristics are primarily discussed with reliability theory. On the one hand, the product's MTBF is evaluated scientifically and objectively. 其次,还运用可靠性理论,对该产品的可靠性特性进行了初步探讨一方面,科学、客观地评定出了该产品平均无故障时间(MTBF);
High performance and high reliability are two important characteristics in the trading system. 高性能和高可靠性是交易系统的两个重要特性。
Next, we study statistical analysis of accelerated constant-stress life test ( ACSLT) for Weibull distribution on type I censor-ing and give AUE of the coefficients in acceleration equation and estimates of various reliability characteristics under the usual stress. 得到加速方程的系数的AUE和在正常应力下的各种可靠性特征的估计。
The qualitative analysis of the reliability characteristics of municipal public security was conducted by the mixed approach of structured function-event tree. 应用结构化功能-事件树的混合方法对城市公共安全系统的可靠性特征进行了定性分析;
Combined with intelligent recognition technology, data fusion technology adopts the classical self-adapting weighting fusion algorithm to increase the reliability of fire characteristics recognition. 数据融合方法采用经典的自适应加权融合估计算法,配合智能判别技术,增强了火灾特征识别的可靠性。
The characteristics of annular soft magnetic material samples were tested by using NIM-2000S magnetic property measurement system. In order to guarantee the measuring reliability, the characteristics of the same sample were measured many times, then the testing results were compared and the testing error was analyzed. 采用MIN-2000S磁性能测量系统对环形软磁材料样品进行了静态特性参数的测试,为了保证测试技术的准确性,对同一样品进行多次测量,比对测量结果并进行误差分析。
In addition, introducing Fourier-Mellin transformation into the process of the extraction and matching of image homonymy characteristics greatly increased the effectivity and reliability of characteristics points searching and matching, thus on the whole improved the accuracy and effective of the multi-spectral image registration. 此外,通过将傅里叶-梅林变换引入到影像同名特征的提取与匹配过程中,使得特征点搜索效率以及匹配可靠性大大提高,从整体上提高了多光谱影像配准的精度和效率。
Using the intelligent power module ( IPM) has improved the performance of the system, especially for the reliability characteristics. 智能功率模块IPM的使用,提高了可靠性,改善了系统性能。
Herringbone gear train is an important component of transmission system in marine machinery. It had a lot of advantages such as high efficiency, compact structure and high reliability. The dynamic characteristics of the device would influence the stability and reliability of the transmission system. 人字齿轮传动系统是舰船等机械传动系统中的重要组成部分,其具有效率高、结构紧凑、工作可靠等优点,其动态特性将直接影响到传动系统的稳定性和可靠性。
In general design, system storage resources are graded according to RAID level or RAID group. However, in the evolution storage systems, all storage resources are graded in accordance with the system performance and reliability characteristics. 在一般的设计中,根据RAID级别或RAID组对系统存储资源进行分级,而在进化存储系统中,对系统内所有存储资源按照性能和可靠性等特性进行分级。
In the past half century, Flash memory has become one of the fastest growing kinds with its high integration and high reliability characteristics. 近半个世纪以来,Flash存储器以其高集成度、高可靠性的特点,快速成为半导体存储器市场中发展最为迅速的一种。
DataBase server USES the Oracle DataBase product, its high reliability, high scalability characteristics will provide solid foundation for the stable operation of the system. 数据库服务器采用OracleDataBase数据库产品,它的高可靠性、高可伸缩性特点将为系统的稳定运行提供坚实的基础。
Modern electronic equipment is miniaturization and muti function change direction, they have called for the printed circuit board with speed, high level of integration and high reliability and other characteristics. 现代电子设备正向小型化和多功能化方向发展,因而要求其印制电路板具有高速、高集成度和高可靠性等特性。
Though analyzing the relativity between the characteristic parameters and magnitude or epicenter distance, as well as between the different parameters, it can be concluded that different parameters represents different meaning and has different reliability in evaluating damage characteristics of ground motion records. 通过对地震动记录的特性参数与震级和震中距以及各个参数之间存在的相关性进行讨论分析,得出各个参数在评价地震动记录的破坏特性方面的不同的意义和可靠程度。
Subsequent testing, it also proves that the system to meet the functional needs, it is also strong and has high reliability and maintainability characteristics. 随后的测试,也证明了该系统在满足功能性需求的同时,还具有可维护性强和可靠性高的特点。