模型

Optimal model on I-type and II-type goal assembly line balancing problem is proposed in this paper; meanwhile, optimal model on U-line is proposed. In addition, models on multi-objective assembly line balancing problem and resources-constraints assembly line balancing problem are set up.

建立第Ⅰ类和第Ⅱ类单一型装配线平衡的最优化模型，同时研究了U型布局装配线平衡的最优化模型，多目标装配线平衡的目标规划模型以及带资源约束的装配线平衡的最优化模型。

The innovations of the thesis have been shown in several aspects as follows: put forward the transfer mechanism model of the landslide thrust on basis of the soil arching theory, and according to the model the formula about how to compute the thrust acting on the pile and the maximum pile spacing have been deduced. Set up the displacement model about the interaction of the pile and landslide, and their relatively displacement can be taken into consideration when computing the pile, thus the limitation of supposing the distribution of landslide thrust has been avoided, at the same time, the applied condition of the model and the computing procedure have been given. Bring forward the improved computing method of the anti-sliding pile with prestressed cable, which has been verified rational and applicable, making the method more perfectly in theory. Through the study on the mechanical model of the foundation beam with prestressed cable, put up the limit design idea of the structure, and the realization procedure of the idea has been given and programmed with the finite element, which leads to a new thinking for the safe and rational design of the foundation beam with prestressed anchor cable.

本论文的创新之处在于，用土拱理论建立了滑坡推力在抗滑桩与坡体之间的传递机制模型，并由此得到了作用于抗滑桩上的滑坡推力计算式以及最大桩间距的确定条件式；建立了抗滑桩与滑坡体相互作用的位移模型，该模型能考虑桩与坡体相互作用过程中二者相对位移的影响，避免了人为假设滑坡推力分布形式的缺陷，给出了其适用条件和计算过程；提出了预应力锚索抗滑桩的改进计算方法，使得预应力锚索抗滑桩的计算理论更加完善，通过实例验证了该方法的适用性和合理性；在预应力锚索地梁力学计算模型研究的基础上，提出了预应力锚索地梁极限状态设计的新思想，给出了该设计方法的实现途径并编制了有限元计算程序，为锚索地梁合理而安全的设计提供了一种新思路。

According to the geological property of the research area, we apply sequence indicator simulation method if the reservoir type is discrete variable. Sequence Gauss simulation method is used if the type of reservoir property is continuous variable. Structural model (single well model, fault model and bedding model) and property model are built. The 3D distributions of reservoir parameters are established based on structural model. Three advantage oil distribution of the oil field are pointed out through overlap of the reservoir parameters distributions.

根据研究区的地质特征，建模过程中的储层类型属于离散变量，选用序贯指示模拟方法；储层参数属于连续变量，则选用序贯高斯模拟方法，对储层分别实现构造建模(单井模型、断层模型和层面模型)和属性建模，在构造模型的基础上建立储层参数的三维分布，通过储层参数的分布的叠合研究，在该油田指明了三个有利油气分布区块

It indicates the distinct element method simulation model of charging of bell-less top blast furnace may replace the model experiment that takes very long time, and spends a great amount of both manpower and material resources to research the law of charging of bell-less top. The distinct element method simulation is made for opening furnace charging of reality bell-less top blast furnace. The result of simulation is also very identical with that of measuring.

本文在高炉无钟炉顶实验模型上进行了单环和多环布料实验研究，同时运用离散单元法模拟模型对实验进行了数值模拟，得到的炉料分布和料面形状的实验结果与模拟结果相当吻合，这证明了离散单元法在高炉无钟炉顶布料中的应用是可行的，并且表明运用高炉无钟炉顶布料离散单元法模拟模型可以替代费时、费钱、费力的物理模型实验，进行无钟炉顶布料规律研究。

Space analysis and Bolton's analysis are two important parts of the orthodontic diagnostic and treatment planning procedures for malocclusions. Measuring data from plaster models with boley gauge or vernier caliper is a traditional method. Due to recent technologic advance, the models are allowed to be digitized and measured with software tools. The purpose of this study was to compare the differences between measurements done by software tools on digital models and those done directly on plaster models.

在矫正的诊断与治疗计画拟定的过程中，齿列的空间分析及波顿牙齿比值分析都占了重要的一环；传统的方法是在石膏模型上用波利尺或游标卡尺来做测量与分析，现在由於电脑的进步与普及，石膏模型已可数位化，因此本研究主要是探讨手动测量石膏模型与使用电脑程式辅助测量数位化模型在分析上的差异。

In consideration of the chain grate stoker with steam capacity of 20t/h,based on experimental testing data,a fast modeling with step input,was set up by calculating transfer function on step response curve,gets model parameters on "two-point method" on the first,and then modifies those parameters with "curve fitting method" through MATLAB/SIMULINK software,proves that the combination of "two-point method" and curve fitting mothod...

对阶跃响应曲线先采用&两点法&得出模型参数，再采用&曲线拟合法&对模型参数进行修正，从而实现系统动态特性建模。着重讨论了针对阶跃响应曲线，在&两点法&建模的基础上，进一步采用在MATLAB/SIMULINK软件环境下&曲线拟合法&对模型进行修正，发现&两点法&与&曲线拟合法&相结合的方法可以更准确地对系统进行建模。此方法可为锅炉燃烧优化设计、热力系统仿真研究提供热工对象理论模型，也可用于控制系统调试时控制参数的预选择。

It described the basic thinking and method of building simulation model including the modeling method of conceptual model(conceptual model includes the hierarchical model,object model, dynamic model),and basic thinking of building the simulation model of coal wharf logistics system with the new software of Witness.

同时本文针对如何应用新一代仿真软件witness建立煤炭码头物流系统仿真模型，阐述了基本思路，建立煤炭码头的层次模型、动态模型，最后结合具体码头的特色建立其仿真模型。

Through experimental study of typical crown fire using pine tree, we first measuredits heat release rate and the inter-space thermal radiation variation of crown fire ofsingle pine tree and compared the experimental data with the model prediction,validating the rationality of the thermal radiation model of single tree.

通过对典型树冠火热辐射的实验研究，以雪松为实验树，测量了实验树的热释放速率、由单颗雪松产生的树冠火的空间热辐射随时间的变化，并将测量值与利用单树热辐射模型计算出的理论值进行了对比分析，验证了单树热辐射模型的合理性；然后测量了由多个雪松同时燃烧产生的空间热辐射随时间的变化，并将测量值与利用多树热辐射模型计算出的理论值进行了对比分析，验证了多树热辐射模型的合理性。

The predicted models of plate crown , the prediction and feedback models of plate shape are set up on the basis of Ben Cheng's elastic deformation theory by simplifying and discretizing the models.

以本城轧辊弹性变形理论为基础，通过模型简化和离散化建立了板凸度预报模型、板形预测模型及板形控制反馈修正模型。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代写医学论文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文对于冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成道理、基本生产模型结构与运动历程及其设计道理；对于典型的冲压件生产模型进行了设计：大直径三通管冲压复合模设计盖世了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形屈曲件的生产模型设计、铰链卷圆成形工艺及生产模型设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模以及盒形件侧壁孔眼翻孔模。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。