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Abstract: In this paper,on the basis of the analysis of the risk attributes of the project cost control,the knowledge about the probability theory,linear regression and the other management theory is applied to establish the mathematical models concerned.
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文摘:本文在对建设项目成本控制过程中的风险因素进行分析的基础上,利用概率论、线性回归和其它管理理论的有关知识建立了相关的数学模型,由此通过计算确定出项目成本控制风险管理的关键因素,并提出了相应的管理策略。 |
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Abstract: In this paper,on the principle on modern control theory,by means of analyzing the structure and characteristic of the system safety state,the state equation and the dynamic model of the safety system was estabished.
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文摘:以系统论、信息论、控制论为指导思想，结合安全系统工程现场实践，对开发、完善安全控制论的理论体系及其应用等方面研究成果作了简要介绍，包括安全控制论的数学模型，安全系统的控制方式，安全计量及其在安全评价等方面的应用。 |
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Abstract: In this paper,reporter establishes a probability mod el of shaping machine to be repaired.The theory on repair ability of machine too l is discussed in detail.It approcached to a way of deciding optimum repairing p eriod,and given its calculate
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文摘:以一牛头刨床为例，建立了其失效的概率模型，论述了机床可靠性维修的理论，探讨了机床的最佳维修周期的界定问题及计算方法。 |
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Abstract: In this paper,rigid visco-plastic FEM technique is applied to numerically analyze the factors affecting the forming time of superplastic bulging,and the regularities of forming time affected by different factors are given by examples of constant
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文摘:采用刚粘塑性有限元技术对超塑性胀形成形时间的影响因素进行了数值分析，以圆筒形零件的恒压和恒应变速率充模胀形为例，给出了不同因素对超塑性成形时间的影响规律，为超塑性胀形实际工艺设计提供了依据。 |
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Abstract: In this paper,river water quality prediction is integrated with water pollution control measures.Two parameters,water environmental capacity and Pollution Index are selected for pollution control measures.The objective is achieved after the deve
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文摘:本文将水质预测及水污染控制措施有机地结合,选取水环境容量和污染指数作为水污染控制的参数.这样,一维对流-扩散水质方程的求解除就是实现本研究目的的关键.本研究采用的模型在现有的水质模型基础上有所改进,因为其采用四点隐格式对水质进行预测,推求可接纳污染物的环境容量值及为保证水质而限定的污染物浓度值,从而制定相应的水污染控制措施.为整体考虑各种污染物的情况,建议采用河流的污染指数进而推求综合污染指数.总之,本研究为水质保护提供了科学的计算方法,该法对水污染控制及污水对河道水质的影响是实用有效的. |
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Abstract: In this paper,some inequalities which generalize the results of our predecessors are established in real or complex inner product spaces.
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文摘:在实或复的内积空间中建立了几个不等式，推广了前人的工作. |
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Abstract: In this paper,some main intensity compensation techniques for sensing measuring using intensity fiber as optical sensor are presented.Especially,the fundamental principles,system configurations,functions and properties of the double path compens
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文摘:介绍了强度型光纤传感检测中实用的强度补偿技术，重点描述了双光路补偿和单光路补偿的基本原理、系统结构和性能特点，并分析了这两种方法的区别及联系。 |
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Abstract: In this paper,starting from the generalized Huygens-Fresnel diffraction integral and B-integral definition,and based on the statistical-optics method,the nonlinear propagation properties of laser beams with amplitude modulations and phase fluctu
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文摘:广义惠更斯-菲涅耳衍射积分和B积分定义出发，并利用统计光学方法，对有振幅调制和位相畸变光束的非线性传输特性作了详细研究。 |
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Abstract: In this paper,the Characteristic of the air cold system in power plant is discussed detail, and compared all-round.
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文摘:详细介绍了发电厂空冷系统的特点，并进行了全面比较。 |
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Abstract: In this paper,the adherent properties of PET fabric treated by corona-discharge were studied through ESCA and wettability,the application of two mechanisms in terms of weak boundary layer and chemical structure on fabric surface was discussed.
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文摘:本文通过光电子能谱和表面润湿实验来研究经电晕放电处理后的涤纶织物的表面性能，探讨了弱界面层和化学结构两种理论在粘合中的应用。 |
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Abstract: In this paper,the authors briefly overview the status quo of andthe developments in research on the complexity of seismogenic systems and analyze the cause of the complexity occurring in the evolution process of the classical dynamical system.
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文摘:简要综述了当前地震孕育系统复杂性的研究现状和进展，分析了经典动力系统演化过程中复杂性产生的原因。 |
