performance n. 1.执行,实行,履行;完成;实现;偿还。 2.行为,动作,行动;工作。 3.性能;特性。 4.功绩;成绩。 5.演奏;弹奏;演出;(驯兽等的)表演;把戏。 6.【物理学】演绩。 a performance test 【机械工程】性能试验。 high performance 高度准确,性能优良。 an afternoon performance 午后的演出,日戏。 two performances a day 一天演两场。 a fine [wretched] performance 成绩好[坏]。 put a monkey through its performances 使猴子玩种种把戏。 performance in [of] horse-manship 马戏;马术表演。
function n. 1.功能,官能,机能,作用。 2.〔常 pl.〕职务,职责。 3.庆祝仪式;(盛大的)集会,宴会。 4.【数学】函数;与其他因素有密切关系的事。 The function of the ear is to listen. 耳的功能是听。 the function of education 教育的功能。 discharge one's functions 尽职。 the functions and powers of the National Congress 全国代表大会的职权。 a controllable function【火箭】遥控程序。 public [social] function招待会,文娱晚会,社交集会。 vital functions 生命机能。 vi. (器官等)活动,(机器等)运行,发挥作用。 function as teacher 担任教师。 a sofa functioning as a bed 兼当床用的沙发。 The lathe doesn't function well. 这台车床有毛病。 function digit [letter] 【计算机】操作数码[字码]。
The sfem reliability method applied to components " fatigue reliability was studied . the performance functions of fatigue reliability were set up and their partial derivative were deduced . the direct sfem method and the partial derivative sfem method were proposed 探讨了随机有限元可靠度法在分析构件疲劳可靠性时的应用,推导和处理了构件疲劳可靠性分析时功能函数的建立和求偏导问题,提出了直接sfem可靠度法,偏导sfem可靠度法。
2 artificial neural network , which is one of services provided from the matlab platform , is applied to simulate the relationship between input and output in the system in order to recognize the system so that the performance function can be transformed into the random variable from the force 在matlab平台上利用人工神经网络来模拟系统的输入与输出关系,对系统进行识别,从而使大坝功能函数由对应于的应力表达直接转化为外界随机变量来表达。
The accuracy of reliability calculation was improved in the derivative sfem method . the local derivatives of fem and numerical method were used to obtain the iterative formulas of the performance function ' s local derivatives . the procedure is relatively simple and adaptable to engineering application as the stiffness matrix formed and decomposed only once 偏导sfem可靠度法求解构件疲劳可靠度,可靠度计算精度得到改善,通过有限元求偏导,结合数值微分技术,推导出了功能函数的偏导迭代格式,只需一次形成和分解总纲,计算较简便,适合工程应用。
Then , the application framework found on warbac model , referring to the access control framework of x . 812 | iso 10181 , is given , and its designing technology is probed into particularly . mainly including the application system framework based upon warbac model , the design concerning tactic , performance function , decision - making function , communication mode and management of access control of warbac and the service based on ldap , etc . at the end of the paper , a realized file management system - ujsfwm , originating from the application framework of warbac model , is illustrated the function of the ujsfwm system and the realization of the concerning technology are explained at length in the paper 接下来给出了参照x . 812 | iso10181访问控制架构设计的基于warbac模型的应用框架,并对其设计技术进行了详细的探讨,主要内容包括:基于warbac模型的应用框架体系结构, warbac访问控制策略设计、访问控制执行功能和访问控制决策功能及其相互间通信方式设计、 warbac管理功能设计、基于目录管理的ldap服务等。最后介绍了根据基于warbac模型的应用框架进行设计实现的文件资源管理系统? ? ujsfwm ,文中对ujsfwm系统的功能及其涉及到的相关技术的实现做了详细介绍。
Cosmically parallelism , getting redundant , getting fault - tolerant , essential no linearity , study adaptive capacity and so on are characteristic of artificial neural network ( ann ) , so it become the tool for system identification naturally . after studies concepts of ann , this text have probed the simulation of seismic resistant structure base on ann , including the collecting of samples , the choosing of performance function , the construction of nn ' s topology , the choice of training methods and so on 本文在了解神经网络的概念、逼近能力、训练算法、拓扑结构与网络性能之间关系等问题的基础之上,探索了基于神经网络的结构地震反应仿真的方法和步骤,包括样本集的准备、目标函数的选取、网络拓扑结构的构建、隐层神经元数目的确定、训练方法的选择以及提高泛化精度的措施等若干实际问题。
In the analysis of seismic reliability of concrete dam , the most performance functions ca n ' t give a visible analytical expression and the most used method is geometric method . because of hypothesis and approximate in the geometric method , it is not a maturity method and very complex even hard in the tackling the nonlinear problem 针对混凝土大坝抗震可靠度分析中,大多数功能函数不一定能显式给出,目前一般使用几何法求解,由于存在各种假定和近似,几何法不是一种完备的求解方法,对非线性问题求解繁琐甚至困难。
Secondly , the paper discusses the communication problem by making use of interface and gap , the system achieves purpose of realtime data sharing through experimentation , therefore , it performances function of realtime information supervision , operation performance calculation , operation performance loss analysis , improves manage level and safety supervision ability 其次,本文利用系统的接口功能,利用网闸技术,探讨了该系统与mis系统的通讯问题,通过试验,达到实时数据共享的目的,从而实现生产实时监控、单元机组性能分析、单元机组能损分析功能,提高全厂的业务管理水平和风险监控能力。