- 更多网络例句与维量分析相关的网络例句 [注:此内容来源于网络,仅供参考]
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Analyzed on the tunnels that used EPB method in different soils, the more logical three-dimensional finite element model is based, which can reality represented the soil transfiguration. 3 Due to the engineering example, a 3D FEM simulation model was founded. The model was used to study the rules of soil deformation and surface settlement during shield tunneling. 4 The characteristics of loess include the module, conglutination force and inner friction angle of the loess, affected the soil deformation. 5 The influence factors to the surface settlements such as the depth of soil, the outer diameter of the shield tunnel, the released stress at the cutting face, the fill ratio of the shield tail void, pouring-slurry press, thrusts and lengths of shield and digging steps were studied using the FEM method. References is brought forward in the loess areas of Xi'an was proposed.
通过对不同土质条件下盾构法进行地铁隧道施工的有限元分析,全面反映盾构推进对土体变形的影响情况; 3根据有关勘测资料,建立合理的盾构法施工三维非线性有限元模型,对盾构法施工引起的地层变位和地表位移情况进行计算,分析了盾构施工引起的地层变形规律和地面沉降规律; 4研究了黄土特性(地基模量、粘聚力和内摩擦角)对盾构法施工中土体变形的影响; 5利用三维有限元对盾构施工过程中影响地面沉降的因素(覆土厚度、隧道外径、开挖面压力变化量、注浆压力、盾尾空隙填充率、开挖步长、盾构机的长度和推进力等)进行研究,为今后西安地区地铁的建设提供参考。
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Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.
通过对短小、断续性结构面统计特征的研究,将地下厂房区划分为五个岩体结构统计均质区,应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征,并以此为基础对岩体宏观力学特性进行了深入研究:(1)首次通过在结构面网络模拟计算结果的基础上,应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比,结果表明以结构面网络模拟结果为基础,应用模糊信息优化技术进行岩体质量评价能够取得很好的效果,解决了工程岩体质量的定量评价问题;(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究,建立了结构面分布的分形维数和岩体变形指标间的相关关系,并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算,解决了工程岩体宏观变形参数的评价问题;(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法,得出了岩体在不同方向上的强度参数,结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系,各个岩体结构均质区具有不同的强度参数;同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明,按连通率加权平均计算法在考虑合理的折减系数情况下,可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计,通过以上研究解决了工程岩体抗剪强度参数的评价问题;(4)通过结构面网络分形维数的研究,应用分形损伤耦合分析方法,研究了厂房区岩体的损伤特征,并首次引入"损伤度"的概念,建立了应用最大主损伤评价岩体质量的指标体系。
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People usually use adjectives to express emotion. An emotional model based on adjectives is provided in this paper. Based on the idea of "dimension" from psychology, semantic differential method and factor analysis are used to construct an orthogonal emotional space. The measurement of similarity in the emotional space is analysis. After that, the emotion model is used in image retrieval.
通常人们用一些形容词来表达自己的情绪,本文提出了种情感模型用来处理这些表达心理的形容词,从心理学的"维量"思想出发,采用语义量化技术和因子分析的方法建立情感空间,并分析情感空间的相似性度量方式。
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High order symplectic schemes of three-dimensional time-domain Maxwell's equations are constructed with symplectic integrator technique combined with high order staggered difference. The method is used to analyzing stability and numerical dispersion of high order time-domain methods and symplectic schemes with matrix analysis and tensor product.
利用辛积分技术与高阶交错差分技术,建立求解三维时域Maxwell方程的高阶辛算法;结合电磁场中的物理概念,借助矩阵分析和张量分析理论,获得高阶时域方法及高阶辛算法的稳定性和数值色散性的统一处理新方法。
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In the numerical study, the governing equations of flow and heat transfer in 3 —D body—fitted curvilinear coordinate system being automaticly generated with TTM method were deduced by means of vector and tensor analysis. These equations were dliscreted with nonstaggered grids providing relative elimilating method for the pressure oscillation was domonstrated.
在数值分析中,借助于矢量理论和张量分析,导出了具有普遍意义的三维任意曲线坐标系下的流动传热控制方程,并利于TTM方法生成了计算域的贴体曲线坐标网格;在数值离散过程中,尝试了用非交错网格离散的方法并解决了压力场振荡的抑制问题;运用附面层理论,阐述了壁面函数法在三维任意曲线坐标系上的应用。
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Fist, comprehensive analysis on the current study on data processing is made, and characters of Newton methods about nonlinear surveying and mapping data processing are discussed, and then new solutions to parameters estimate with multi-sources, multi-types, multi-dimension, multi-precision bynonlinear least square are presented such as PSB algorithm, digital continuation and generalized digital continuation algorithm, cone model method, tensor analysis method, GCMA(mixed algorithm of gradient method and conjugate gradient method), combining algorithm based on Newton method and gradient method and confidence region and so on, and a new fast difference iterative algorithm is proposed towards parameters estimation containing random parameters in nonlinear models, and a new solutions to nonlinear least squares surveying and mapping adjustment by parameters estimation both considering the random and nonrandom parameters is presented after studying on nonlinear data processing in deformation monitoring, and at last primary analysis on error propagation of spatial data is made and approximate error propagation formula and error analysis formula to length and area are proposed.
首先比较全面分析了目前测量数据处理理论的研究现状,讨论了牛顿类方法在处理非线性模型参数估计方面的特点,研究并给出了求解多源、多类型、多维、多精度、非线性最小二乘测量平差参数估计的若干种新方法,这包括PSB算法、数值延拓及其广义数值延拓算法、锥模型法、张量分析法、基于最速下降法和牛顿法的组合算法、基于最速下降
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In chapter 1, an up to now synthetically evaluation is given on the research ways and conclusions about jet in cross-flow. Considering the shortage of previous research ways and techniques (the instantaneous flow field and vortices field can not be properly get), in addition to the deficiency of corresponding conclusion (mainly concentrate on the analysis of time-average but little on structures of flow and action of vortex), the research way and content is draft out in this part. Though PIV, the time-average, instantaneous flow field and vortices field can be get, that will unveil the coherent vortex and its course of generation, development and evolvement, with the assistance of K-ε model and Hybrid Finite Analytic Method , which will proof-test the experiment result and bring some complementary, more profound research about the 3-D characters can be done. Using some fundamental topological theory and principle on flow analysis, with anglicizing of vortex structure, a reasonable description is the topological characteristic of near field in JICF given.
首先在第一章中对横流中湍射流的以往研究方法和研究成果给予了综合的评述,针对横流中湍射流旋涡结构以往研究中研究方法的局限性(不能很好得到流动的瞬态流场及涡量场)和相应研究成果中存在的不足(大都集中在时均特性的分析,对流动的内部结构和旋涡的运动阐述很少),明确了本文的研究方法和研究内容:通过PIV流动测量显示技术得到流动的时均及瞬态流场、涡量场,来揭示横流中湍射流的时均、瞬态流场、涡量分布特性,和各种具有拟序结构性质的复杂涡系的产生、发展及演化过程;结合湍流k-ε双方程模型及相应的HFAM计算方法,对于实验进行相互验证和补充,从而更为充分地研究各种旋涡的三维特性;利用拓扑分析的一些基本原理及相关规则,依据对各种旋涡结构的分析,做出对射流近区流场拓扑性质的合理描述。
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The porosity and pore size distribution of HVFA pastes and concretes were determined by autoscan porosimeter. The results show that excessive fly ash content and comparatively high water-cementitious materials ratio will cause a big increase in porosity and harmful pore in HVFA pastes.
首次把X射线小角散射技术用于测定高掺量粉煤灰水泥浆体气孔—固体界面的分形维数,并就粉煤灰掺量、水胶比对气孔—固体界面分形维数的影响进行了分析,发现过高的粉煤灰掺量和较大的水胶比均会使分形维数大幅度增加。
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In this study, we used poly L-latcide, poly DL-latcide-co-glycolide 75:25 (PLGA7525) and poly DL-latcide-co-glycolide 50:50 (PLGA5050) during citric acid inducing ammonium bicarbonate gas forming process to form porous polymer film, and rolled the porous polymer film to make nerve conduits with pores and multi-layered. Electron Spectroscopy for Chemical Analyzer and Attenuated Total Reflectance – Fourier-Transform Infrared Spectrometer were employed for determining elements' functionabilities and chemical compounds. Charge Coupled Device camera and Scanning Electron Microscope were employed for macroscopic and microscopic morphologies and structural observation. Differential Scanning Calorimetry was employed for measuring glass-transition temperature. Nano-indentation system was employed for measuring elastic modulus and hardness. Biodegradation and water absorption ratios were measured to analyze their chemical properties and SEM was employed for microscopic morphology of the tested nerve conduit.
本研究将以聚乳酸、聚乳酸-聚甘醇酸共聚合物(75:25)、聚乳酸-聚甘醇酸共聚合物(50:50)做为研究材料,以柠檬酸诱发碳酸氢铵发泡之气泡成型法制作具有相连通孔隙之高分子薄膜,再将高分子薄膜卷制成特殊多层的导管,制作具有多层孔隙之新型神经再生导管,以电子能谱化学分析及减弱式全反射-傅立叶转换红外线光谱分析进行成份分析及化学元素测定;以电荷耦合元件摄影机、扫瞄式电子显微镜进行多层孔隙型神经导管巨观及微观形态结构观察;以示差扫瞄热量量测分析玻璃转换温度、奈米三维量测弹性模数及硬度;以及进行降解性质测定,并以扫瞄式电子显微镜进行降解后之导管微观结构形态观察。
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People usually use adjectives to express emotion. An emotional model based on adjectives is provided in this paper. Based on the idea of "dimension" from psychology, semantic differential method and factor analysis are used to construct an orthogonal emotional space. The measurement of similarity in the emotional space is analysis. After that, the emotion model is used in image retrieval.
通常人们用一些形容词来表达自己的情绪,本文提出了种情感模型用来处理这些表达心理的形容词,从心理学的&维量&思想出发,采用语义量化技术和因子分析的方法建立情感空间,并分析情感空间的相似性度量方式。
- 更多网络解释与维量分析相关的网络解释 [注:此内容来源于网络,仅供参考]
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absolute differential calculus:绝对微分计算
维-奇微塔(Levi-Civita)用张量分析方法处理曲率计算,建立了一套名为绝对微...分计算(absolute differential calculus)的法则,诠释黎曼曲率的含义,这正是...爱因斯坦所需要的.爱因斯坦在他的朋友(格罗斯曼)的帮助下,熟悉了这套计算程
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dimensional analysis:维量分析
而且,OLAP 扩展为 DB2 而存在,它将维量分析(dimensional analysis)带入数据库引擎,这一点我将更详细地讨论. 空间分析. 空间代表一个广阔的分析画面所需的分析锚的一半;时间则代表另一半. 我所描述的仓库包括时间和空间的基础. 时间戳按时间锚定分析,
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dimensional regularization:维数正规化法
dimensional method 量纲分析法 | dimensional regularization 维数正规化法 | dimensional theory 量纲理论
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strain tensor:应变张量
从理论上讲,心脏复杂的机械运动最适合采用三维应变张量(strain tensor)显示,然而目前大多数检测应变的方法都是一维或两维超声. 组织速度或应变分析应用的主要限制是可重复性问题. 一般而言,组织速度信号强于应变信号,然而检测这两种指标时,
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tensor analysis:张量分析
如众所知,低 维背景所生出的曲率,可被较高维的张量分析(tensor analysis)所描述. 空间的首三个维度是实数数值的. 胡氏建议空间若果再有下一个维度,则依据数学之对应 推论,该下一个维度必是虚数数值的. 胡氏认为自然世界不能够拥有高於四维的空间,