查询词典 system engineering

Organization: Center of Engineering Mechanics, School of civil Engineering and Architecture, Nanchang UniversityAbstract: The situation of singular yield surface are very common in the research of constitutive relation of geo-materials, for example, two-yield-surface soil model, four-parameter concrete model, and so on.

摘 要：在岩土材料本构关系的研究中，奇异全屈服面的情况非常多见，如土的双屈服面模型、混凝土的四参数模型等。

The primary studying works and characteristics:1 To summarize reinforcing theory of cement mixing pile composite foundation2 To analyze the primary mechanics characters and changing rules of cement mixing pile, based on analysis of test data both indoor and outdoor.3 To discuss siding frictional resistance, ending resistance, ultimate bearing capacity of simple mixing pile and effectiveness factor of grouped piles, loading ratio of soil between piles under cushion cap of grouped piles and stress ratio of pile and soil and so on, and use many computation method and experimentation method to ensure bearing capacity of mixing piles composite foundation.4 To point out and analyze eight sides flaws and problems of the bearing capacity calculation method of mixing pile compositefoundation which ensured by national and normative method/ formula.5 To apply test results of loading tests and a few settlement observation data, use gray theory to predicate ultimate bearing capacity of deep mixing piles, actual example demonstrate engaging between theoretical predicted value and actual value.6 To apply groovy layerwise summation method to discuss entity piles method, double foundation method, equivalent layerwise summation method and consolidation theoretical method and so on, especially by combination of engineering example, use FEM to calculate or discuss the settlement and changing rules of composite foundation.7 To discuss problems of critical length of composite foundation by combination of engineering example and numerical analysis method, and analyze the contrast of critical length between simple pile load and most area load of composite foundation, not only critical length of composite foundation is relative to modulus ratio between piles and soil, but also upside load distribution area of composite foundation.

主要的研究工作与特色为：(1)总结了水泥搅拌桩复合地基的加固原理；(2)在对室内外试验资料进行统计分析的基础上，系统分析了搅拌桩水泥土的主要力学特性及其变化规律；(3)探讨了搅拌单桩的侧摩阻力、端阻力、极限承载力及群桩效率系数、群桩承台下桩间土荷载分担比及桩土应力比等，提出用多种计算方法并结合试验方法来综合确定搅拌桩复合地基的承载力；(4)明确指出和分析了按国家有关规范的方法确定搅拌桩复合地基承载力所存在的八个方面的缺陷与问题；(5)利用过去没有加载至破坏阶段的载荷试验成果和较少的沉降观测数据，尝试了用灰色理论预测深层搅拌桩的极限承载力，实例表明理论预测值与实测值吻合较好；(6)在常规分层总和法的基础上，探讨了复合地基沉降计算的实体墩基法、双层地基法、等效作用分层总和法、固结理论法等，特别是结合工程实例，用有限元数值计算等方法计算和讨论了搅拌桩复合地基的沉降及其变化规律；(7)结合工程实例，用数值分析方法探讨了复合地基临界桩长的问题，指出和分析了单桩荷载下的临界桩长与复合地基大面积荷载下的临界桩长存在很大的差别，复合地基的临界桩长不仅与桩土模量比有关，而且与复合地基上部荷载分布面积有关。

This laboratory of existing concrete research directions include: Ecological engineering and systematic ecology; Agricultural ecology of seashore solonchak; The physiological ecology of the helophyte; Cell engineering research and quick breeding of helophyte; Molecular biology and transgene research of helophyte.

该实验室现有的具体研究方向包括：生态工程学与系统生态学；海滨盐土农业生态学；耐盐植物的生理生态；耐盐植物的细胞工程研究与扩繁；耐盐植物的分子生物学与转基因研究。

We are trained as senior engineering technicians with the knowledge in anti-pollution of water, gas, sound, solid waste, pollution control, water supply and drainage works, water pollution control and planning and protection of water resources for cities and towns, who are able to be engaged in the aspects of planning, design, management, education, and research and development for environmental engineering.

本专业通过学习物理化学、工程力学、工程制图、微生物学、水力学、环境监测、固体废弃物处理与处置、大气污染控制等环境工程学科的基本理论、基本知识，培养具备城市和城镇水、气、声、固体废物等污染防治和给排水工程、水污染控制规划和水资源保护等方面的知识，能从事规划、设计、管理、教育和研究开发方面工作的环境工程高级工程技术人才。

Engineering Plastics Engineering Plastics is a specific name.

工程塑料是一个特定的名称。

Year 7 month 3 day, China engineering's machine's trade's biggest private enterprise's —— 31 heavy industry company limited by shares at Shanghai exchange stock Stock Exchange list appear on market, finish de once importance turn on its work-starting career (by private enterprise divert society's public enterprise),meanwhile too become domestic engineering's machine's trade's 1 appear on market de private enterprise, 4 appear on market enterprise.

2003年7月3日，中国工程机械行业最大的民营企业——三一重工股份有限公司在上海证券交易所挂牌上市，完成了其创业史上的一次关键性转折（由民营企业转向社会公共企业），同时也成为国内工程机械行业第一家上市的民营企业，第十四家上市企业。

Keywords mining engineering;artificial neural network;dynamic engineering classification of stability;stope roof;factor analysis

采矿工程；人工神经网络；稳定性动态工程分类；采场顶板；因素分析

Simulation engineering stress-strain curve and experiment engineering stress-strain curve fit very well.

试验的工程应力-应变曲线与模拟的工程应力-应变曲线拟合的很好。

Simulation engineering stress-strain curve fit measured engineering stress-strain curve very well.

模拟的工程应力-应变曲线与试验的工程应力-应变曲线符合得很好。

It can be used to guide construction in subgrade engineering in Wenzhou-fuzhou railway and give some suggestion to similar engineering.

对温福铁路下一步全线正式工程及其他类似工程的施工提供一些有益的借鉴和指导作用。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。