查询词典 optimal

The price of freight market is the result of demand and supply.For disaccord of private cost and social cost,the optimal decision of a van's owner is not the optimal decision of social resources relocation,which is accompanied by overload of freight market.

我国货运市场运价是当前竞争性市场供求作用的结果，货运市场私人成本与社会成本的偏离，导致单个货运车主基于既定市场价格的最优决策实际是偏离社会资源配置最优的，并伴随现时屡禁不止的超限超载。

Research on multi-objectives optimal operation of the hydropower station with two-row placed units is studied with an example of Lijiaxia hydropower station. Stability characteristics and operation efficiency of the two-row placed units is studied by real test and analysis. Optimal operation mode is also proposed.

以李家峡双排机水电站为实例，开展双排机水电站综合优化运行研究，通过真机测试分析，得出了李家峡双排机水电站机组稳定性特征和机组效率变化规律，提出了双排机水电站优化运行模式。

In view of the lack of consideration for the random and the fuzzy of design parameters in traditional optimal design for the machine tool spindle,the fuzzy reliability is introduced into the process, and then a mathematical model is estadlished in the light of the optimal design theory.

针对机床主轴常规优化设计不考虑设计参数的随机性和模糊性，提出将模糊可靠性引入到主轴的优化设计中，在常规优化设计的基础上建立了机床主轴模糊可靠性优化设计的数学模型。

In order to control the size and predigest optimal algorithm, the woking mechanism has been divided into two portions:the machine of reversal six-bar and the machine of lifting and rising ,and the optimal mathematic models for these two machines have been established.

为了控制规模，简化优化算法，将铲运机工作装置分解为转斗六连杆机构和举升机构两大部分，分别建立完整的优化设计数学模型。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

This paper studied penetration of asphalt emulsion and asphalt diluted by paraffin and infection of preservation; presented optimal prime coat material and dosage, and determined optimal dosage of SBS modified asphalt and base asphalt as seal coat binder sprayed on cement stabilized gravel. This paper also analysed influence of different material combination on shear intensity between base and surface. The shear intensity of earthwork cloth is also researched through analysis on different cloth, temperature and treatment on gravel.

文中通过室内试验，研究了乳化沥青和煤油稀释沥青作为半刚性基层透层材料的渗透效果，以及基层不同养生龄期对其的影响，提出了水泥稳定碎石和二灰稳定碎石基层上最佳的透层材料及其最佳洒布量；研究和分析了下封层不同透封层材料的组合、不同结合料以及不同基底材料对封层材料用量以及基面层间抗剪强度的影响。

By means of gene mutation, several generations of circulation, the cost function with maximum value is the gene with optimal chromosome, and the optimal combination of resonance cavity parameters is obtained through comprehensive optimization.

经基因突变、循环若干代，以最大值的代价函数为最佳染色体的基因，全局优化获得最优组合的谐振腔参数。

Main work is as follows:(1) According to the product practice of the reheating furnace and complexity of modern industry, the application and research situation of optimal control of the reheating furnace are elaborated. The problems in the reheating furnaces optimal control are also pointed out.

本文主要做了以下工作：(1)从钢坯加热炉生产实际和现代工业复杂化的实际出发，阐述了加热炉优化控制的应用现状与研究现状，并指出了目前加热炉优化控制中存在的问题。

Methods Explore the optimal concentration of phurbol-12-myristate-acetate and calcium ionophore (A23817) inducing time, and optimal concentration of biotinyl sheep anti mouce IgG (bio-SAM-IgG) and horse radish peroxidasestreptavidin. The CD4(superscript +) cell enriched from peripheral blood mononuclear cells using solid phase anti-CDs monoclonal antibodies were induced by PMA and A23817 under influence of monensin and harvested in vary hours.

从健康人外周血单个核细胞中富集CD4细胞，加入莫能霉素，用不同浓度的佛波醇酯和钙离子载体(A23817)诱导CD4细胞不同时间，比较其胞内表达白细胞介素－2(IL-2)/白细胞介素－4(IL-4)的细胞百分率，确定最适诱生条件；用不同稀释度的IL-2McAb、IL-4McAb、不同浓度的生物素化羊抗鼠IgG(bio-SAM IgG)和辣根过氧化物酶标记的链霉亲和素作棋盘配比试验，确认McAb、bio-SAM IgG和HRP-SA的最适浓度，根据上述结果建立了检测细胞内细胞因子的BSA-ICC法。

In this leading-edge moment of creation. It's the optimal creative experience, it's the optimal

换言之，你们允许了自己来到这个世界上的开创性工作获得更多。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。