查询词典 decision element

In this paper, a joint decision model is proposed for the management of production decision and the marketing decision in a supply chain.

本文在供应链背景下提出了一种生产批量与定价的联合决策模型。

At last, the thesis analyzes the process of national security crisis management. In the third part, the thesis introduces the American and Russia national security crisis decision-making mechanism. By taking the valuable experiences of western development countries for reference, China will conclude more useful and efficient crisis decision-making mechanism. In the forth part, the thesis analyzes the factors that may influence our national security and present some policy suggestions on constructing our national security crisis decision-making mechanism. In the last part, the thesis sums up the total article, draws according conclusions and introduces the problems of this topic for further discussion.

本文主要分为五个部分进行论述，第一部分，导论部分，包括论文选题的缘由和意义、国内外研究现状、本论文的研究思路和方法的介绍等内容；第二部分，介绍了国家安全、危机管理及危机决策的概念，特别注重在新国家安全观的视角下，重新审视新世纪的国家安全的范畴，并对国家安全层面的危机管理过程作出分析；第三部分，以西方发达国家为例，详细介绍了美国和俄罗斯的国家安全危机决策机制，并从中总结出可以借鉴的经验和对我的启示；第四部分，客观分析了当前形势下国内外可能诱发我国家安全危机的诸多因素，并针对当前我国国家安全危机管理机制中的弊端和不足之处，从&硬件&和&软件&两个方面对我国国家安全危机决策机制的构建和完善提出政策建议；结语部分，总结本论文并得出相应的结论，并就该课题下今后需进一步深入研究的问题做出介绍。

Selection of safety valve Decided by the operating pressure safety valve nominal pressure, the decision by the operating temperature range of temperature safety valve from the computed value of the decision constant pressure safety valve spring or a lever set pressure range, then the safety valve according to the decision to use media materials and structure type, and then calculated according to the safety valve Discharge valve throat diameter.

安全阀的选用由操作压力决定安全阀的公称压力，由操作温度决定安全阀的使用温度范围，由计算出的安全阀的定压值决定弹簧或杠杆的定压范围，再根据使用介质决定安全阀的材质和结构型式，再根据安全阀泄放量计算出安全阀的喉径。

MDM III is a two week block in spring of the second year, has a format similar to MDM II, and deals with advanced concepts in test use, the practice of evidence-based medicine, decision modeling including cost-effectiveness, additional study designs and critique, decision psychology related to both the patient and the physician, and computer decision aids.

第三阶段的MDM是第二年春季两周一节，形式同前，检查应用的前沿概念、循证医学实践、决策模型包括成本效益、附加研究设计和评价、患者和医生相关的决策心理学、计算机决策帮助。

In this paper, we present a new algorithm by agency of decision trees tabulations for computing all optimal basic feasible solutions-tabulational algorithm of decision trees using the tabulational decision trees as a tool.

本文提出用决策树表求运输问题全部最优基可行解的一个新算法——决策树表解算法。

Then, the dissertation designs a feasible evaluation decision process diagram by means of the general analysis on evaluation decision process of v.c project. We expect that itll be a perfect system for the efficient evaluation and the correct decision of an investment project.

从总体上阐述了风险投资项目评估的整个决策流程，建立了一个清晰明了、易于操作的投资项目评估决策流程图，希望能够成为有效指导风险投资机构进行项目评估和投资决策的完整体系。5。

The approach identifies all possible focal elements from the incomplete decision matrix, then constructs the DS-AHPs hierarchical structure model, calculates the basic probability assignment of each focal element and the belief interval of each decision alternative.

该方法首先对决策矩阵中属性值进行识别，生成DS-AHP方法的焦元集合；然后构造DS-AHP的判断矩阵，并运用Dempster合成法则对判断值进行合成，从而确定方案排序。

Through systematic conclusions of site selection methods and complicated analysis of site selection influence factors and index, based on the newest research results of sanitary landfill site selection both at home and abroad, this thesis discusses the elementary principles of multi-objectives decision osculating value method, matter element analysis method and multi-objectives decision fuzzy optimization method, builds an open site selection index system.

本论文通过对已有选址方法的系统总结，基于对卫生填埋场选址影响因素和指标的综合分析，在借鉴国内外有关卫生填埋场选址的最新研究成果的基础上，从理论上阐述了适用于铁路垃圾卫生填埋场选址的多目标决策密切值法、物元决策分析法以及多目标决策模糊优选法的基本原理，建立了一个开放性的选址指标体系。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。