结构的
- 与 结构的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The research results show that stiffness ratio of superstructure and ratio of damping and stiffness in isolated story have great influence on local deformation of structure. It can reduce the local deformation and increase entirety of structure effectively through rational laying rubber bearing and adjusting distribution of stiffness and damping in isolated story. The specific conclusion of the paper is that local deformation of isolated structure becomes minimality when translational stiffness ratio of superstructure is consistent with stiffness ratio of isolated story; and it also can reduce local deformation of minor structure by reducing damping ratio of isolated story properly.
本文研究表明,上部结构的刚度比及隔震层的刚度和阻尼比对结构的局部变形有着很大影响,通过橡胶垫的合理布置,调整隔震层的刚度和阻尼分布,能有效的减小结构的局部变形,提高结构的整体性,从而使隔震效果得以确保;本文的具体结论是,当上部结构的侧移刚度比与隔震垫刚度比一致或相近时,隔震结构的局部变形最小;适当减小子结构的隔震层阻尼比可减小该子结构的局部变形。
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First mostly contraposing hull deck structure it goes along FEA analysis, discuss the different influence degree of calculational results between the different simplifications of the mathematical model, thereinto mostly analyse five different simplifications of the deck model; Second contraposing hold section and hull deck structure it goes along FEA analysis together, discuss the different influence degree of calculational results between the different elements style, gridding number and gridding density, thereinto mostly analyse the difference between adopting 8 node shell element and 4 node shell element, nondense gridding and thick gridding, and numerous gridding number and few gridding number, In the end mostly contraposing hold section structure it goes along FEA analysis, discuss the different influence degree of calculational results between the different boundary conditions, thereinto mostly analyse the difference between adopting CCS boundary conditions and LR boundary conditions.
首先主要针对船体甲板结构进行分析研究,讨论结构简化不同对有限元计算结果的影响程度,其中主要研究分析了五种不同甲板结构简化模型;紧接着针对舱段与甲板结构一起进行分析研究,讨论单元类型,网格数量与密度的不同对有限元计算结果的影响程度,其中主要研究分析了分别采用8节点板壳单元与4节点板壳单元的不同,以及分别采用疏的网格与密的网格,多的网格数量与少的网格数量的计算结果的差异。最后主要针对舱段模型进行分析研究,讨论不同的边界条件对有限元计算结果的影响程度,其中主要研究分析了分别采用CCS舱段边界条件与LR舱段边界条件进行有限元计算而带来的结果上的差异。本文第二部分为港工建筑物中的大直径薄壁圆筒结构的有限元比较分析。在研究大圆筒的有限元比较分析中,主要讨论用不同的网格密度与数量来划分网格引起的差异。其中用了网格密,数量多与网格疏,数量少两种模型进行大圆筒结构的有限元分析对比
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In this paper we build a university scientific research management information system based on Client/Server and three-layer structure of ASP technology, and introduced the design aims, tasks and principle of the system with systematic investigation and analyzsis of demand., With the principle of integrality, practicability, opening, precursive and generality, data stream and data structure are analyzed detailedly, and logistic model which fits university scientific research management was established based on advanced structure system analysis method. In addition, it puts forward a series of the whole scheme of scientific research management system which bases on internet adapts large database development.the design of this system adapts new internet/intranet techonlogy and it can make us gather and share the whole provincial university scientific research information.lt studies and establishes oology structure and using platform of our provincial university scientific research management system, In addition,it also designs and formulates the system at the experimental unit(the scientific research department of NEAU).The scientific research management information system of NEAU is one part of the network information management system.
本课题采用基于客户/服务器和三层结构的ASP技术,在系统调研、需求分析的基础上,给出了基于互联网的省高校科研管理系统的设计目标、任务和原则;本系统的开发遵循完整性、通用性、实用性、先进性和开放性的原则,采用较为先进的结构化系统分析方法对数据流程、数据结构进行详尽的分析,制定一个适合高校科研管理的逻辑模型;提出一套基于互连网络的、采用大型数据库开发的科研管理系统的整体方案;系统设计采用Internet/Intranet全新技术,可做到全省高校科研信息集成与共享;研究制定我省高校科研管理信息系统的拓扑结构及应用平台,利用试点单位,设计和制定我省高校科研管理信息系统的功能结构和信息资源结构。
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The optimized processing parameters including screen print and hot pressing were obtained. In order to reduce error, the method of double-face screen print in key electrode layer and stepped press were used. Ceramics are dense after sintering. The thickness of electrode is about 5μm. The test fixtures based on microstripe for SMD were design and fabricated.
采用平面电感和平板电容结构实现的LC谐振器,由于集总电感的Q值较小以及高介电常数介质基片杂散参数效应,这种结构的谐振器Q值较小;采用新的耦合结构-间隙电容耦合结构,实现谐振器和外电路的匹配耦合,使谐振器和耦合电容在同一层上实现,即单层结构,和传统的平行板电容耦合方式相比减小了耦合电容对位误差。
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To investigate the effect of p38MAPK signal conducting pathway on livercancinoma cell's malignant phenotype induced by VEGF,we take theexperiment with cell growth test,scanning microscope and laser scanningconfocal microscope so that observe effect of p38MAPK signal conductingpathway on liver cancinoma cell growth,pseudopodium formation andframework of cytoskeleton induced by VEGF.results indicate that the cellbecame ellipse and there were more and thick pseudopodium in the cell'ssurface after being treated by VEGF,and destroyed framework ofcytoskeleton,which can be blocked by pretreated with a special inhibitor ofp38MAPK SB203580 so that VEGF promote metastasis by enhancing livercell migration and movement via p38MAPK signal conducting pathway,butVEGF promote cell growth without p38MAPK signal conducting pathway.
为进一步探讨VEGF通过p38信号传导通路诱导肝癌细胞转移时,对肝癌细胞恶性表型的影响,采用细胞增殖实验、扫描电子显微镜、激光扫描共聚焦显微镜观察VEGF对肝癌细胞增殖作用、细胞伪足形成、细胞骨架微丝结构的影响以及p38MAPK信号通路调控作用。结果显示,VEGF能够不通过p38信号通路促进肝癌细胞增殖;VEGF诱导肝癌细胞丝状伪足增多、增长,使细胞骨架微丝结构破坏、甚至消失。阻断p38MAPK信号通路,可以抑制VEGF诱导的肝癌细胞伪足形成,细胞骨架丝状结构呈束状,排列较规整。上述结果表明,VEGF可以通过p38信号传导通路诱导肝癌细胞伪足增多、增长,促使细胞骨架微丝结构破坏,使肝癌细胞迁移、运动能力增加,促进肿瘤转移。VEGF并不通过p38信号通路诱导肝癌细胞增殖作用。
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Considering the randomness of both elastic module and mass density of the structures, the element′s structural stiff and mass matrix have been built, the structure dynamic characteristics is analyzed based on probability, and the digit characteristics of natural frequency random variable is derived from the Rayleigh′s quotient.
利用随机因子法,建立了考虑结构弹性模量和质量密度同时具有随机性时结构的刚度矩阵和质量矩阵;从结构振动的瑞利商表达式出发,利用代数综合法推导出结构特征值随机变量数字特征的计算表达式。
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The difference between codon choice randomization in the region of protein regular secondary structure and that in coil region is investigated in detail. We find that the folding free energy of mRNA segments in different protein secondary structures is significantly different. The average Z score is -1. 38 and -1. 71 for regular secondary structure, but -0.93 and -1. 03 for coil.
我们仔细分析了在蛋白质规则结构区域(alpha螺旋和beta折叠)和无规则结构区域密码子随机选择的差异,发现处于不同蛋白质二级结构的mRNA片段的折叠自由能有显著的不同,对于规则结构,Human和E.coli的平均Z-score值分别为-1.71和-1.38,但是无规则结构的Z-score值分别为-1.03和-0.93。
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At first in the preliminary design this paper computes the linear damping coefficient of the viscous damper employed in this project using Composite Response Spectra approach, meantime, this paper proves that reducing the exponent of velocity of the piston can increase the magnitude of the dissipative energy, because of the viscous damper employed in the practical project character nonlinear behavior; next this chapter performs analysis and comparison between the building without and with the viscous dampers aforementioned when the building suffers from various Time Domain Response, from the angle of displacement, interstroy drift, velocity, interstory velocity, acceleration, energy, maximum axial force of the dampers and of the column etc., in order to prove that the incorporating the viscous dampers into the buildings has great superiority on enhancing its aseismic performance ; furthermore, this chapter also expatiates on diverse assembly form of the viscous dampers that results in the adverse impact on the internal force of the structural member in this building, on the ground of which this segment bring about the preference of the assembly form of the viscous damper; finally this chapter points out the sphere of application of the analysis and computation using Composite Response Spectra approach in design: it is available in well-proportioned stiffness structures and isn抰 available in the structures that contain weak story. It is recommendable, particularly, to incorporate the fluid viscous dampers into this structure that contain weak story to refrain earthquake and reinforce, such as the Central Hall of Shanghai Exhibition Hall.
首先使用了反应谱分析法设计出欲附设的粘滞阻尼器的线性阻尼系数,由于实际工程所用的粘滞阻尼器具有非线性的特性,故而笔者又证明了降低速度指数对提高粘滞阻尼器的耗能量的优势所在;接着分别从位移、层间位移、速度、层间速度、加速度、能量、最大阻尼出力和柱轴力等不同的角度对结构在附设粘滞阻尼器前后的时程反应进行了分析对比,籍此在实际工程中证明了附设粘滞阻尼器对于提高结构的抗震性能的优越性;再者,笔者还阐述了采用不同的粘滞阻尼器布置方式对结构中构件内力特别是柱轴力和基座竖向反力产生的不利影响,并在此基础上提出了布置方式的优选;最后,指出了反应谱法在设计中的适用范围:对于均匀结构反应谱法能够使用,而对于含有薄弱层的结构反应谱法并不适用;对于类似于上海展览馆中央大厅的含薄弱层的结构尤其值得使用粘滞阻尼器的方法进行抗震加固。
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This thesis focused on tone poem "Also Sprach Zarathustra"(op.30) written by Germans composer Richard Strauss in later romantic period. Based on analyzing each basic structural elements within this work, the author summarized phenomenon of structure, discussed structural phenomenon and then achieved a grasp of structural thinking of entire works. By observing historical and cultural background of the era when Richard Strauss was in, Author explored the root of formation of musical structure of this thesis.
本文以浪漫晚期德国作曲家理查·施特劳斯的音诗《查拉图斯特拉如是说》op.30为研究对象,以对作品中各基本结构元素的分析为基础,总结其中的结构现象并探究其结构思维,从而实现对整首作品结构思维的把握,并通过对理查·施特劳斯所处时代历史文化背景的考察,探寻这首作品音乐结构的形成原因。
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According to the three criteria, an appropriate doorsill is found by adaptively adjusting a discount factor in the process of iteratively solving. 2. 3 Method of Processing the Deleted Elements According to the doorsill, the continuous topological variables can be regressed to the 0-1 type discrete topological variables.
2.2 调整折减系数搜索最佳阈值为了能使程序快速准确的得到满足约束的最优拓扑结构,根据框架结构的特性引入结构非奇异、结构响应不被违背和结构重量不改变三个准则判断迭代收敛,并根据这三个准则的满足情况,在优化迭代过程中自适应的调整折减系数来搜索最佳阈值。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。