体系结构
- 与 体系结构 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Then the structure decomposed into a series of equivalent single degree of freedom system, the random wind-induced response and the equivalent static wind action based on Davenport spectrum of the structure with TLD are obtained. An example confirms this method.
此外,由于建立了将结构分解为一系列等效单自由度体系的一般方法,利用等效单自由度体系与抗震反应谱的关系,本文方法还可用于非经典阻尼非对称被动控制结构基于抗震反应谱的地震作用取值。
-
The military-political structure makes the dominant unit alike on structure and function, and sustains the anarchical characteristic of the system.
军事、政治结构使体系内主导单位在结构和功能上具有相似性,并使之支持了体系的无政府特征。
-
The research contents mainly include: First, the influence of foundation constraint condition to the temperature stress is analyzed, the temperature stress formula of ultra-long concrete anchor plate is deduced, then the influence of length to structure crack can be gotten from the formula. Second, a breathing method is set up to solve the problem of temperature stress in ultra-long concrete constructions. By setting the sliding floor, a breathing system is built up and the temperature stress reduced distinctly. Third, the effect of prestress technique in the control of temperature stress is analyzed, it is simulated and calculated through FEA to get the right way to apply the prestress. Forth, the delay of temperature field and unsteady conduction is considered, the temperature field of ultra-long concrete structure with later poured band is simulated, then temperature stress distribution after casting the concrete is calculated, finally the effect of later poured band to temperature stress of ultra-long structure is analyzed.
本文的研究内容主要包括:(1)分析了基础约束对超长混凝土结构温度应力的影响,推导了超长混凝土地基板温度应力公式,从而得出长度对结构裂缝的影响;(2)针对超长混凝土裂缝问题,提出了一种可呼吸的解决方法,通过设置滑动层,使结构成为一种"可呼吸"体系,从而有效的降低温度应力;(3)分析了预应力技术在控制超长结构温度应力中的作用,通过有限元模拟计算,得到合理的预应力施加方式;(4)考虑温度场的滞后效应及不稳定传导,对带后浇带超长混凝土结构浇注后的温度场仿真模拟,计算浇注后的温度应力分布,分析后浇带对超长结构温度应力的影响。
-
Complex biological systems have another structural feature: they are architectonic—that is, their anatomy, fine structure, and biochemistry all reflect a specific physiological .
复杂的生命体系还有另外一个结构特征:它是一个完备的体系,它的解剖学、结构学、生物化学都表现着特定的生理学功能。
-
By studying the membrane preparation process for the typical membrane materials of polystyrene and cellulose acetate as well as a new type membrane material of polyvinyl butyral,the effects of operating parameters on the membranes structure are determined.By the study on the thermodynamics involved in the ternary systerms of ScCO_2/solvent/polymer and the calculation of theoretical ternary phase diagrams,the phase demixing behavior during the membranes formation by ScCO_2 induced phase separation process are described.By studying thermodynamics involved in the quaternary systerms of ScCO_2/solvent/additive/polymer,the effect of a low molecular weight additive on the quaternary phase diagram and dimixing speed are revealed.
通过对传统膜材料聚苯乙烯、醋酸纤维素及新型膜材料聚乙烯醇缩丁醛进行ScCO_2诱导相转化制膜工艺的实验研究,给出了操作参数对膜形态结构的影响规律;通过研究ScCO_2/溶剂/聚合物三元体系热力学问题,并计算出相应铸膜体系的三元相图,对ScCO_2诱导相转化膜制备过程的分相成膜行为进行了分析与描述;通过研究ScCO_2/溶剂/小分子添加剂/聚合物四元铸膜体系的热力学问题,并借助于四元体系理论相图计算的结果,分析了小分子添加剂对相分离过程的影响。
-
The influence of high temperature and high pressure on foaming agent's properties in opened and closed system, and influence of the change of foaming agent's properties on foaming capacity and foam stabilizing capacity are also studied. The multiple regression theory is used to establish the quantitative characteristic functions of foaming agent versus temperature and pressure. Based on the Gibbs Principle, the quantitative characterization is carried out on relation of foam system's free energy versus its surface tension, surface area and concentration, and the analysis of energy concluded that the disintegration of the foam is inconvertible. At the same time, the influence of change of foam's shape and structure on distribution of reservoir temperature and pressure is qualitatively described, and the coupling mechanism between temperature field, pressure field and chemical field is systematically expounded.
同时,研究了不封闭体系、封闭体系下高温、高压对发泡剂性质的影响,以及发泡剂性质的改变对其发泡性能、稳泡性能的影响;采用泡沫实验的相关结果,运用多元回归理论,建立温度、压力与发泡剂浓度的定量表征函数;基于Gibbs原理,对高温、高压下泡沫体系的自由能与其表面张力、体系中液体的表面积以及浓度关系进行定量化的表征研究,从能量的角度得出了泡沫衰变过程具有不可逆性;同时定性地描述了泡沫形态、结构的变化对油藏温度和压力分布的影响,系统地阐述了温度场、压力场、化学场间的耦合作用机理。
-
Choosing different class exponent to get an evaluation model from above research. Then using analogism, flexible quotiety methods to analyze the statistics comparison and get the standard statistics , put these statistics in to the model mentioned above, a formal evaluation system will be established.
然后根据天津市公路现代化研究的理论体系框架,运用系统论的观点和层次分析法等科学方法搭建天津市公路现代化评价指标体系的结构,选取体系中的各级指标,并确定各指标的权重,从而得到天津公路现代化评价指标体系的基本模型。
-
Synchronous fluorescence showed that the addition of POM could enhance the fluorescence intensity of CV, which was explained in terms of the hindrance of the formation of the nonfluorescent twisted intramolecular charge transfer states of CV by the assembled POM-CV system, and the surfactant CTAB could enhance the luminescence by coordinated assembly.
具有同样Keggin结构的4种稀土杂多阴离子与结晶紫的作用总体一致,稀土元素不同体系的光活性会表现出一定的差异。实验证实,阳离子表面活性剂CTAB的存在会进一步增强体系的发光活性。三者协同作用,形成了更稳定的杂多阴离子-CV-CTAB三元超分子体系,而β-CD的存在对稀土杂多酸盐与结晶紫的超分子体系稳定不利。
-
According to Johnson's Rule and IR spectra, their possible structures are suggested. The bonding parameters of those complexes are calculated by ESR parameters. And the crystal field parameters are calculated by using electronic spectral data. It can be seen that the vanadyl complexes in the solution are ionic complexes and that the α〓 values of those complexes decrease following the increasing of the N donor replacing the O donor of water on the equatorial plane in those complexes. This means that the covalent bonding between vanadium and ligand increases as Ser, Phen or Bipy replace water ligands. The results show the competitive coordinate law that the coordination reactivity of Phen and Bipy is much stronger than that of Ser. The simulation program of ESR is compiled by the theory of ESR in the present work.
测定了VO-丝氨酸二元体系、VO-丝氨酸-邻菲咯啉三元体系和VO-丝氨酸联吡啶三元体系在不同酸度下(pH=1.0~14.0)的乙二醇/水(V/V=1:1)溶液低温ESR谱,发现不同pH下,溶液中具有不同组成的配合物,根据不同pH下ESR谱的变化,利用Johnson的加合规则并结合红外光谱,推测了它们在溶液中的可能结构;利用波谱参数计算了配合物键参数;利用电子光谱数据计算了配合物的晶体场参数,讨沦了它们的成配特性,结果表明:VO配合物属离子型配合物,随取代水分子的配体(Ser、Phen或Bipy)数目增加,键参数减小,配合物共价性增强,同时得出这些体系中,生物配体竞争配位规律:Phen和Bipy与VO的配位能力比Ser强。
-
For specific aspect, that is, discussing the rank of urban system by using centricity strength, discussing the cities'layout of scale by using Rand-Size Rule, discussing the export-orientated level of the economic development by using the volume of trade for external trade, the foreign direct investment and the dependence on external trade, and discussing the spatial structure by using the Fractal Theory.
通过计算城市中心性强度分析城市体系的等级层次;选用1993—2004年的城市年末总人口数据,分析城市体系的规模结构,应用位序—规模法则探讨环城市的规模分布;采用外贸出口额、外商直接投资额、出口依存度三个指标分析城市经济发展的外向性水平;测算城市体系中各城市之间的直线距离,应用分形理论分析城市体系空间结构。
- 推荐网络例句
-
I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
-
Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
-
I'm running my simile to an extreme.
我比喻得过头了。