模型理论

Firstly, the paper refers to commodity marketing mode that is agency method step by step. On the basis of the idea of marketing mode, the whole Grid environment is carefully divided into many domains, including intra-area and inter-area; Secondly, combining with characteristics of virtual supermarket management model and mechanism, we give out a multi-Agent layered grid resource management model; Then, every functional Agent is described and designed referring to the theory of category optimization and shelf optimization in supermarket; Finally, a simulative experimentation based on GridSim, Which is a good simulation toolkit for grid resource scheduling, has been done to verify the efficiency.

首先，根据商品在市场的销售模式采用分级代理方式，对整个网格环境进行区域划分，分为区域内和区域间的具体结构；其次，结合虚拟超市模型的经营模式和管理机制的特点，给出了一个多Agent层次化网格资源管理模型；然后，借鉴超市中品类优化和货架位优化的理论对各功能Agem进行描述和设计；最后利用网格资源调度模拟软件GridSim对该资源管理模型中提出的网格资源调度方法进行模拟。

Characterization of Reservoir Fluids Based on previous publications on this topic, a theoretically correct algorithm capable of predicting the phase behavior of reservoir fluids with much less number of pseudo-components had been developed, the new algorithm had been tested by experimental data, and the computation efficiency show reasonable improvement over previous publications 3 Mixing Rule for Non-Ideal Systems Previous publications on this topic had been reviewed, a new density independent mixing rule which can give a smooth transition from van der Waals rule to G〓 model had been developed, with this rule G〓 model could be directly incorporated into cubic equation of states, ad hoc treatment adopted and problems met by previous publications were avoided.

高度非理想体系的混合规则系统总结了该领域的进展，建立了新的混合规则，新混合规则能平滑地从VDW流体转变为溶液模型，可以直接应用原溶液模型的参数，与已发表的各类方法相比，新模型具有更坚实的理论基础；该混合规则可以在低温低压至高温高全程范围内关联和预测体系的相态行为，包括高度非理想的体系；该混合规则经过了实验数据的检验，结果显示新混合规则的预测能力优于WS混合规则。

The digital watershed model of Yellow River is based on digital elevation model and the classification theory of drainage network.

黄河数字流域模型以DEM数据及其存取系统为依托，以流域分级理论为依据，将坡面、小流域、区域、全流域四个层次的模型整合成一个完整的流域整体模型。

After the result of cohesion-friction model is compared with Coulomb Criterion, it is found that when the results of shearing strength are many and adjacent the strength parameters can not be regressed by least square method, instead the results should be divided into some beelines at that time according to the cohesion-friction model.(4) Discuss the characters of hard structural plane and weak structural plane: The adhesive friction theory is applied to research the changing course of shear area of hard structural plane and its influence on shear stress.

3介绍了岩石强度理论中的粘接摩擦模型，运用此模型分析依附型滑动面的演化过程，并将其推广到边坡岩土体抗剪强度的选取，讨论了不同法向应力下峰值强度和残余强度随法向应力的变化规律，在此基础上给出抗剪强度的选取模式，讨论了对实际取值结果的影响，并与传统的Coulomb准则进行了比较分析，指出直剪试验的法向应力在小应力区的点较多且抗剪强度结果差异不大时，不宜直接运用最小二乘法回归抗剪强度参数，此时应结合粘接摩擦模型对结果进行线性分段。

Introduce the cohesion-friction model of rock strength theory, and extend the model to select the strength of sliding plane, discuss the variation rules of peak strength and residual strength under different normal stress, and then present the selection model of shearing strength. After the result of cohesion-friction model is compared with Coulomb Criterion, it is found that when the results of shearing strength are many and adjacent the strength parameters can not be regressed by least square method, instead the results should be divided into some beelines at that time according to the cohesion-friction model.(4) Discuss the characters of hard structural plane and weak structural plane: The adhesive friction theory is applied to research the changing course of shear area of hard structural plane and its influence on shear stress.

3介绍了岩石强度理论中的粘接摩擦模型，运用此模型分析依附型滑动面的演化过程，并将其推广到边坡岩土体抗剪强度的选取，讨论了不同法向应力下峰值强度和残余强度随法向应力的变化规律，在此基础上给出抗剪强度的选取模式，讨论了对实际取值结果的影响，并与传统的Coulomb准则进行了比较分析，指出直剪试验的法向应力在小应力区的点较多且抗剪强度结果差异不大时，不宜直接运用最小二乘法回归抗剪强度参数，此时应结合粘接摩擦模型对结果进行线性分段。

This article focuses on research of prediction of rock-burst happened in Cangling extreme long-tunnel engineering, comparison of tunnel carving details in the performing stage and prevention measures.

通过对苍岭特长隧道岩爆问题的预测研究和施工阶段洞身开挖情况对比，以及针对本工程的岩爆防治措施研究，探讨了岩爆预测判据对苍岭隧道工程的适用性，揭示了苍岭隧道围岩的岩性特征和初始应力场，掌握了苍岭隧道岩爆发生的烈度和基本分布规律，提出了对岩爆问题的工程防治措施，另外，根据工程区地质条件和岩石物理力学性能参数，建立了相应的地质力学模型，采用有限元法建模反演分析，其结果与通过钻孔水压致裂试验测得的地应力结果比较，显得较为吻合，并得到施工阶段通过洞壁应力恢复法分析结果的验证，验证表明理论模型和有限元模型的适用性及分析应力场是较为准确和合理的，并在此基础上对苍岭隧道岩爆进行分段预测和采取了较有成效的工程防治措施，具有较高的工程应用价值。

This paper presents the portfolio selection problem of two-attribute money and creates a model of portfolio selection based on two-attribute money, which can both contain the existing portfolio models and overcome the above-mentioned deficiencies. A series of new concepts is put forward, such as, holding wealth, obtainable wealth, short-term utility function, short-term expectation-variance utility function, state-expectation-variance utility function, short-term expectation-variance utility curve, long-term expectation-variance utility curve, margin utility contribution force, additional contribution force, profit-risk exchange rate and optimal portfolio expansion curve; The state-expectation-variance analytical method is developed from the expectation-variance analytical method; A set of systematic theories concerning two-attribute portfolio selection is thus established.

本文提出了两属性货币的证券组合选择问题；创建了既能包含现有证券组合选择模型又能克服上述两点不足的两属性证券组合选择模型；提出了持有财富、可获财富，短期效用函数，短期期望—方差效用函数、状态—期望—方差效用函数，短期期望—方差效用曲线、长期期望—方差效用曲线，边际效用贡献力，附加贡献力，收益—风险替换率，最优证券组合扩展线等一系列新概念；把期望—方差分析方法发展成状态—期望—方差分析方法；建立了两属性证券组合选择模型的一套系统的理论。

The concept, characteristic and field of application of gray model theory and the property of gray model are introduced systematically in this paper. The mechanics and The method of building GM (1, 1) and GM (1, N) are deeply researched and discussed. The requirements and relative questions, which should be paid attention to when building gray model, are also discussed.

本文系统地介绍了灰建模理论的概念、特点、应用范围及灰色模型的性质，深入的研究和讨论了GM(1，1)模型和GM(1，N)模型的建模机理和方法，讨论了建模要求及建模中应注意的问题。

The direct evaporative internal-melt ice storage air conditioning is a new and promising technology.It is important to master the ice coil heat transfer performance for the project.The paper analysed the dynamic characteristics and established the corresponding mathematical models of the system,and used the model to analyse the performance of caving cooling process changes.The model for direct evaporation in the U-shaped ice-melting ice storage VRV system couldbe helpful to design and optimization theory.

直接蒸发内融式冰盘管是空调蓄冷工程中常用的一种方式，对这种冰盘管的融冰传热性能的掌握对于工程应用非常重要，本文对基于VRV空调系统的内融式U形冰盘管融冰过程的动态特性进行了分析，建立了相应的数理模型，并利用该模型分析了放冷过程的性能变化，该模型可为直接蒸发内融式U形冰蓄冷VRV融冰系统的设计及优化提供理论依据。

Secondly, a theoretical dual rigid-plastic modal under lateral impact of blunt indenters is firstly developed in order to predict damage pipeline which is fully clamped across a span based on rigid-plastic beam on a perfectly plastic foundation, which is made up of a rigid-plastic sub-beam and a rigid-plastic basic-beam, the rigid-plastic sub-beam is used to predict denting deformation, the rigid-plastic basic-beam is used to predict global deformation, the sub-beam and the basic-beam interact by a perfectly plastic foundation.

为了更好地估计钝头弹体冲击对管道造成损伤，在刚塑性地基梁模型的基础上，首先提出了一种新的理论计算模型一双重刚塑性梁模型，由一子梁和一基梁构成，子梁用来估计弹体撞击造成的局部损伤，基梁用来估计弹体撞击造成的整体弯曲，子梁和基梁通过基础反力相互作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。