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边界     
相关语句
  boundary
    Theoretical Study and Application of Singular Hybrid Boundary Node Method
    奇异杂交边界点法理论研究及应用
短句来源
    The Multi-Domain Spline Fictitious Boundary Element Method and Its Application in Analysis of High Rise Building Structures
    分域样条虚边界元法及其在高层建筑结构分析中的应用
短句来源
    Discussion on Boundary Conditions of the Foundation in Applying Finite Element Method to Compute Stresses in Gravity Dam
    用有限单元法计算重力坝时关于地基边界条件的探讨
短句来源
    ARTIFICIAL BOUNDARY SN ANALYSIS OF TRANSIENT ELASTIC WAVE PROPAGATION
    暂态弹性波分析中人工边界的研究
短句来源
    The Processing of Boundary Conditions in Finite Element Analysis of Structures
    有限元结构分析的边界条件处理
短句来源
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  border
    Environment Design and Activity in the Space --Border Effection in the space
    物质环境设计与空间中的活动——空间中的边界效应
短句来源
    The thesis introduces the model experiment of geo-mechanics and the SimilarityTheory, generalizes the stress characteristics of rock masse, according to thediversities of the acting force, 63 kinds of border loading models are designed.
    论文介绍了地质力学模型试验和相似理论,总结出岩体受力模型试验的相似性要求,概括了岩体中天然应力和工程活动引起的应力重分布特征,并根据岩体的受力形式设计了63种工况的边界加载模型。
短句来源
    So it takes the minimum driving power of double transporting belt conveyer drawing electrical machine as the goal function, with the operating speed of conveying belt, its width, its minimum tension, interval of roller as variables of designing, considers the fuzziness of influencing restraining border and intensity of conveying belt, and the randomness of the gauge stress of conveying belt, sets up mathematical models of the fuzzy reliability optimal design on the main parameter of conveyer, uses the Hopfield neural network algorithm to ask solving to the model.
    所以这里以双运带式输送机牵引电机的功率最小为目标函数,以输送带运行速度、输送带宽度、输送带最小张力点张力、托辊间距为设计变量,考虑影响约束边界的模糊性、输送带强度的模糊性和输送带计算应力的随机性,建立双运带式输送机主参数的模糊可靠性优化设计的数学模型,应用Hopfield型神经网络算法对模型进行求解。
短句来源
    5. The failure of excavation ls mainly shear failure. It occures on the side and corners onthe excavation plt bottom. The failure conclude tensile splitting failure,but it often occureson the border.
    (5)基坑工程的破坏主要是剪切破坏,往往破坏先发生在基坑底部边角处,基坑工程的破坏也有拉裂破坏,但往往发生在边界处。
短句来源
    The author utilizes double broken line model to show relation between friction and displacement around the pile. The article establishes equation about friction and relative displacement according to elastic or plastic condition that soil around or in the tip of the pile lies in. Then we use continuous and border conditions to determine relative displacement.
    作者用双折线硬化模型来表示桩侧摩阻力与桩土相对位移的关系,并根据桩侧土与桩尖土处于不同的弹性和塑性状态,建立桩身轴向力和桩土相对位移的微分方程,利用连续和边界条件可解出相对位移,然后再根据相对位移又解出桩轴向力和负摩阻力。
短句来源
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  edge
    Study on the coarse asgregate from a sandpit, Beijing shows that compressive strength of concrete containing the agsregate was decreased 10 to 20 MPa when unit alkali content of concrete was 6. 0kg/m3. And the strength was decreased 25 MPa when unitalkali Content was 9. 0/m3. Micro-analysis illustrates there existed the characteristics of alkali-aggregate reaction inner aggreggate and in the edge of the aggregate of above concrete specimeus
    对北京某砂石场的粗集料研究表明,当单位碱含量达6.0kg/m3时,砼抗压强度降低10~20MPa; 碱含量为9.0kg/m3时,抗压强度降低25MPa左右.微观分析表明.上述砼试件中,部分粗集料内部和边界存在碱-集料反应特征.
短句来源
    THE DESIGN OF RIGID EDGE MEMBRANE STRUCTURE
    膜结构设计(6) 刚性边界膜结构的特点及设计实例
短句来源
    Comparison between "the Edge Archetype" and "the Floor Archetype"
    “边界原型”与“地板原型”之比较
短句来源
    ANALYSIS ON BEARING BEHAVIORS OF CABLE-NETS STRUCTURE WITH CABLE EDGE
    柔性边界索网结构受力分析
短句来源
    The edge conditions, subregion method, index of environment compatibility assessment system of cement&concrete is studied.
    对水泥混凝土系统环境评价的边界条件、系统内涵和外延、指标化方法等进行了系统的研究。
短句来源
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  bounding
    Discussion about a Bounding Surface Model for the Consitutive Relationship of Concrete
    混凝土本构关系的边界面模型的讨论
短句来源
    Modification of the Bounding Surface Model for Constitutive Relationship of Concrete
    混凝土本构关系边界面模型的改进
短句来源
    A BOUNDING SURFACE MODEL FOR CONCRETE CONSTITUTIVE RELATIONSHIP
    混凝土本构关系边界面模型
短句来源
    THE STUDY AND APPLICATION Of CONCRETE BOUNDING SURFACE CONSTITUTIVE RELATIONSHIPS TO THE NONLINEAR FINITE ELEMENT ANALYSIS OfCONCRETE FILLED STEEL TUBULAR STRUCTURES
    钢管混凝土结构非线性有限元分析中混凝土边界面模型的研究及应用
短句来源
    Bounding surface equation of initial stress anisotropy
    初始应力各向异性的边界面方程
短句来源
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      boundary
    The main idea for our approach relies on a study of the boundary theory we established for the general CAT(-1) spaces.
          
    LetD be a Hermitian symmetric space of tube type,S its Shilov boundary andG the neutral component of the group of bi-holomorphic diffeomorphisms ofD.
          
    Taking a specific determination of its argument and studying its limit when approaching the Shilov boundary, we are able to define a ?-valued,G-invariant kernel for triples of mutually transversal points inS.
          
    For every orbitGυ which is not polynomially convex we construct an analytic annulus or strip inG?υ with the boundary inGυ.
          
    Such properties are expressed using the Furstenberg boundary of the associated symmetric space ? × ?.
          
    更多          
      border
    Cubilin, an endocytic receptor expressed on the renal tubular brush border, is responsible for albumin reabsorption in physiologic condition.
          
    The partial control notion in border disciplines is examined.
          
    These data show that water transport through apoplast to the border between the cortex and central cylinder is accompanied by an increase in the resistance to water flow.
          
    The possible role of border factors in determining the nucleosome positioning on a DNA sequence was investigated.
          
    If the capillary border intersects the surface of the ground and there is an alternation of the processes of infiltration, redistribution, and evaporation of moisture, rapid oscillations in the ground water level are possible.
          
    更多          
      edge
    A Discrete Wavelet Transform without edge effects using wavelet extrapolation
          
    Commonly used techniques such as circular convolution and symmetric extension can produce undesirable edge effects which propagate into the interior of the transformed data as the number of DWT iterations increases.
          
    In this paper, we clarify exactly how "bad" such Gabor expansions are, we make it clear precisely where the edge is between "enough" and "too little," and we find a remedy for their shortcomings in terms of a certain summability method.
          
    A fixed double (single) bond of a Kekuléan benzenoid systemH is an edge belonging to all (none) of the Kekulé structures ofH.
          
    Furthermore, its connectivity, diameter and transitivity (vertex-, edge-) are also determined.
          
    更多          
      bounding
    Plane shear flows of dilatant liquids are considered in the presence of a constant transverse velocity component of the liquid; this component arises from uniform injection (or suction) at the bounding surfaces.
          
    Boundary conditions are calculated for the concentrations, velocities, and temperatures of the components of a partially ionized plasma at the electrodes and at the nonconducting walls bounding the plasma.
          
    The "critical∝ frequency bounding the frequency spectrum of the focused perturbations is estimated.
          
    Only recently have investigations been made of such questions as the effect of the walls bounding a plasma on the characteristics of a probe, edge effects, etc.
          
    A study is made of the exhausting of a jet of viscous gas from a cylindrical channel into vacuum in the presence of a flat bounding surface outside the channel in the plane of its exit section.
          
    更多          


    Two methods for analyzing caisson-beams are introduced in this paper.One is the well-known method of redundant forces. The author has simplified this methed by using couples of redundant forces to set up a typical equation and pointing out the rule that the matrix of the coefficients of simultaneous linear equations which are organized from the expansion of that typical equation. This method can be easily solvd when the number of unknown redundant forces, or that of equations, is less than 3 or 4; but it will...

    Two methods for analyzing caisson-beams are introduced in this paper.One is the well-known method of redundant forces. The author has simplified this methed by using couples of redundant forces to set up a typical equation and pointing out the rule that the matrix of the coefficients of simultaneous linear equations which are organized from the expansion of that typical equation. This method can be easily solvd when the number of unknown redundant forces, or that of equations, is less than 3 or 4; but it will be difficult when the number is more than that. In order to solve this difficulty the author suggests another kind of method of which the essential principle is mentioned in the following.Supposing that the distance between the beams is sufficiently short in comparing with their spans, we can set up a partial differential equation for its deffiection W, as we often do in the theory of elasticity. In this way we can solve it with its boundary conditions of simple supporting by sine series. From this we can easily get the formulas of bending moments, shears and twist moments of each beam by partially differentiating the function of deffiection. The result of the calculation proves that it quite agrees with the method of redundant forces when the distance between beams is no longer than 1/5 of their spans.There are some tables given in this raper for practical use.

    本文介紹了計算井字梁的兩种方法。 第一种方法是按冗力送来計算的。本文利用了成对的未知力以建立冗力法的典型方程,指明了由典型方程所組成的联立方程中其系数排列的規律,从而簡化了建立方程的过程和減少錯誤的机会。冗力法仅在联立方程的数目不多于3至4时是相当方便的,若未知冗力过多,解算过程便異常繁重。为此,笔者提出了下述的第二种方法。 当梁的間距比梁的跨度为一較小的数值时,可应用彈性力学所常用的方法,建立一个关于井字梁撓度曲面的偏微分方程。以符合簡支边界条件的正弦级数求出撓度后,便可依微分关系求出各梁的弯矩、切力及扭矩。鈇摩辛柯在其著作中(見[3]§37)討論向異性板的弯曲时,亦曾附帶地提及本法的可能性。本文給出了全部計算公式及为实用的目的而制訂了各种数表。計算的結果表明当梁間距不大于跨度的1/5时,本法与冗力法的結果相差無几,而本法在应用上的簡便笑为任何方法所不及。

    ~~

    本文根据爆炸动力学原理,探讨了用电比拟模型试验方法与岩石力学分析相结合来确定在任意边界条件和药包布置的情况下,岩石爆破破坏范围的具体途径和分析方法.最后通过东川口水库的模型试验验证了该法测出的结果与实际情况甚为接近.

    ~~

    定向爆破是一种多快好省的筑坝方法,设计中正确确定炸药用量及合理选择爆破参数,对定向爆破效果及安全、经济都有很大影响.本文分析了现有由水平平直边界面向上抛掷爆破条件得出的经验和理论公式,认为与—般定向爆破在斜坡地面上进行的情况不同,往往给出偏大的药量,且使爆破达不到预期效果.文中根据功能平衡理论,提出了新的药量计算理论公式(式18),适于斜坡定向抛掷爆破筑坝的具体情况.此外,还提出用现场小型爆破试验决定装药量的方法.并对 k,n 值的合理选择方法进行了讨论.

     
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