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In this paper, the disadvantage effects that products bring to environment are analyzed firstly, and then the concept, history, actuality and developing trend is introduced, and the relationship of green design and traditional design is analyzed. On this basis, the design methods and flow are summarized, and the green packing design is analyzed and discussed detailed, and the evaluating method of life circle and disfigurements and problem in its running process are discussed. At last, a mobile phone design is illustrated in this paper.

本论文首先分析了产品对环境的不利影响;接着介绍了绿色设计的概念、历史、现状和发展趋势,分析了绿色设计与传统设计的关系;在此基础上,总结了绿色设计的主要方法和具体流程;然后,对当前绿色设计中容易被忽视的绿色包装设计进行了详细的分析和探讨;接着对绿色设计的生命周期评价方法及其运用过程中的缺陷和问题进行了讨论;最后,本论文以手机为实例进行了绿色设计实践。

The some basic methods in composite mechanics are introduced,and relative formulations are derived.Maximum stress criterion,Maximum strain criterion,Hill criterion and Cai-Wu criterion are showed.The solid model of level-stability-panel is built by CATIA software,its finite element model by PATRAN/NASTRAN software.Through finite element analysis,the stresses and displacements of level-stability-panel are obtained.In order to analyze the strength of asingle part of level-stability-panel,the software CLOP is developed.The process of taking the data from NASTRAN's results and importing them to CLOP is showed.The strength of back wall of lev el-stability-panel is calculated by CLOP.

论文叙述了复合材料力学分析的基本方法,并推导了相应的计算公式,给出了几种常用的强度准则;利用CATIA软件对某型直升机的平尾进行实体建模,然后在PATRAN/NASTRAN软件中读入该模型,形成了有限元分析模型,并进行有限元分析,获得了平尾的应力云图和位移云图;为了对平尾的局部复合材料结构进行强度分析,开发了CLOP程序;从平尾结构中取出后樯作为强度分析的对象,表示了从NASTRAN分析的结果到CLOP程序输入的方法,计算出了后樯的强度数据。

To overcome the premature of simple genetic algorithm, the calculating efficiency of SGA is improved by the following two ways; Firstly, in order to ensure convergence of algorithm and reduce influence factor of convergence, elitist selection and adapted crossover and mutation operator are adopted. Secondly, because this study deals with finding minimize volume of structure, to quicken convergence of this problem, in line with mechanics criterion the paper carry out mutation to some genes in chromosome according to variations of internal force. This will let algorithms to search answer with our hoping directions.

针对基本遗传算法存在早熟的问题,本文主要从两个方面进行了改进,首先为了保证算法的收敛和减少影响算法收敛因素,采用了最优保护策略和自适应的交叉和变异算子;其次,由于本文研究内容涉及求结构最小体积问题,为了加快此类问题的收敛速度,本文结合结构优化中的力学准则,对个体染色体中的某一段基因按照内力变化进行变异操作,使得算法按一定方向进行搜索最优解。

Based on the foundation of the virtual prototype model of the medium-speed maglev train, using the mechanical dynamics and kinematics analysis software ADAMS, this paper expatiates on the following things. Firstly, it analyses the decouple of single magnetic bogie by the simulation and experimentation; secondly, adds the magnetic levitation control system to the single magnetic bogie model and simulates; thirdly, by simulating the motion of the train running on the different type of guideway, analyses the state of the train on the ramp and crankle;in the end ,this paper does a further research on how the magnetic levitation control system and guideway parameters affect the suspending gap when the train runs on the ramp and crankle .

论文在建立了中低速磁浮列车虚拟样机模型的基础上,借助于机械系统运动学及动力学分析软件ADAMS,首先从单转向架出发,仿真分析了磁浮列车单转向架的解耦能力;接着对单转向架样机模型进行了控制系统的仿真;然后对一辆整车在竖曲线和平曲线的运行在ADAMS中进行了仿真,分析了列车在坡道和弯道上的运行状态;最后对磁浮列车在坡道和弯道上运行时的系统性能进行仿真分析,进一步研究了控制系统和线路参数对磁浮列车悬浮性能的影响。

Behavioral phenomena quantified by genetic markers in various species include patterns of multiple mating by both sexes; frequent cuckoldry by males and rare cuckoldry by females in nest-tending species; additional routes to surrogate parentage via nest piracy and egg-thievery; egg mimicry by nest-tending males; brood parasitism by helper males in cooperative breeders; clutch mixing in oral brooders; kinship in schooling fry of broadcast spawners; sperm storage by dams in female-pregnant species; and sex-role reversal, polyandry, and strong sexual selection on females in some male-pregnant species.

通过遗传标记测量不同种的行为现象涉及两性间的多种交配现象:趋穴型种类中雄性与多个雌性私通而雌性则较少交配;通过侵略巢穴和偷窃卵的行为进行偷梁换柱;通过趋穴型雄性鱼类进行卵的模拟;通过共同繁殖型中的雄性进行寄生抚育;通过混合在口孵育型鱼类的幼体间;广播种型产卵者鱼苗的亲缘关系;怀卵孵化型鱼类的精子储存;以及性逆转,一妻多夫,雄性怀卵抚育型种类雌性的强烈性选择。

Behaioral phenomena quantified by genetic markers in arious species include patterns of multiple mating by both sexes; frequent cuckoldry by males and rare cuckoldry by females in nest-tending species; additional routes to surrogate parentage ia nest piracy and egg-thieery; egg mimicry by nest-tending males; brood parasitism by helper males in cooperatie breeders; clutch mixing in oral brooders; kinship in schooling fry of broadcast spawners; sperm storage by dams in female-pregnant species; and sex-role reersal, polyandry, and strong sexual selection on females in some male-pregnant species.

通过遗传标记测量不同种的行为现象涉及两性间的多种交配现象:趋穴型种类中雄性与多个雌性私通而雌性则较少交配;通过侵略巢穴和偷窃卵的行为进行偷梁换柱;通过趋穴型雄性鱼类进行卵的模拟;通过共同繁殖型中的雄性进行寄生抚育;通过混合在口孵育型鱼类的幼体间;广播种型产卵者鱼苗的亲缘关系;怀卵孵化型鱼类的精子储存;以及性逆转,一妻多夫,雄性怀卵抚育型种类雌性的强烈性选择。

In order to solve these problems encountered in the application of Artificial Intelligence in fault diagnosis of power transformer, some improved methods are presented, the main research work of this dissertation consists of the following parts: The conception of cumulative frequency in data reliability analysis is utilized to unify the results of Dissolved Gas Analysis. And with the application of the class-attribute function, the evaluation of typicality of samples and the selection of characteristic vectors of fault could be realized by integrating the technique of multivariate statistical analysis.

针对目前应用人工智能技术进行变压器绝缘故障诊断时所遇到的主要困难,本文进行了深入的研究与分析,进而提出了相应的解决方法,主要的研究工作如下:提出利用可靠性数据分析中累积频率的概念对油中溶解气体分析数据进行归一化处理;并在引入"类属函数"的概念后,结合多元统计分析技术实现了样本的典型性评价与故障特征矢量的选取。

The facts that type I compounds could easily undergo deamination reaction to form α-methylene cyclopentanone derivatives and they could react with glutathione to form an adduct provided sufficient evidence for the hypothesis that the compounds acted as masked α-methylenecyclopen- tanones and reacted with biologically important sulfhydry-containing enzymes, and thus produced anticancer activity.

Ⅰ类化合物在稀溶液中极易进行去胺基化反应形成α-亚甲基环戊酮类化合物。并且Ⅰ类化合物于稀溶液中易与谷胱苷肽进行结合,这些事实为Ⅰ类化合物作为隐蔽的α-亚甲基环戊酮与酶进行加成,从而导致酶失活而具有抗癌活性的设想提供了证据。

This paper summarized the environmental behavior of BTEX in soil from the aspects of adsorption-desorption, volatilization, eluviation, and degradation, with the focus on the factors affecting the adsorption and desorption of BTEX in soil. The future research directions were also discussed.

本文从吸附-解吸、挥发、淋溶和降解等4个方面,对BTEX在土壤中环境行为的研究进展进行了综述,特别对影响BTEX在土壤环境中的吸附-解吸行为的不同因素进行了详细概述,并对今后的研究方向进行了探讨。

This paper, however, has extended the scope of employment structure studies by introducing exchange rate as a new variable in positivist studies and the methods of co-integration test and error correction model in the comparison of the relationships between real exchange rate and the proportion of tertiary industry production value and between the proportion of employment of China and Japan.

关于就业问题,以往的研究主要从就业总量与就业结构两个角度进行探讨,本文对就业结构的研究进行了拓展,在实证研究中引入汇率,运用协整和误差修正模型对日中两国实际汇率与第三产业产值比重和就业比重之间的关系进行了国别比较。

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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%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。