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hybrid methods
相关语句
  混合方法
     Simulation of separation flows with RANS/LES hybrid methods
     采用RANS/LES混合方法研究分离流动
短句来源
     Hybrid Methods in Functional Differential Equations
     泛函微分方程的混合方法
短句来源
     Algebraic Stability of One-step Hybrid Methods for Solving the Initial Value Problems of Ordinary Differential Equations
     解常微分方程组初值问题一步混合方法的代数稳定性
短句来源
     HYBRID METHODS OF FUNCTIONAL DIFFERENTIAL EQUATIONS OF NEUTRAL TYPE
     中立型泛微分方程的一类混合方法
短句来源
     HIGH ORDER A(α)-CONTRUCTIVE HYBRID METHODS AND 2-DERIVATIVE OBERCHKOFF METHODS
     A(α)-收缩的高阶混合方法及二阶导数方法
短句来源
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  混杂法
     A CLASS OF kSTEP, (k+1)ST ORDER HYBRID METHODS OF SDBDF
     一类k步k+1阶SDBDF型混杂法
短句来源
     A Class of k-step (k+2) Order Hybrid Methods for Solving Problems of Stiff ODEs
     一类k步k+2阶解刚性微分方程的混杂法
短句来源
     A class of Adams hybrid methods for solving problems of stiff ODEs
     一类解刚性微分方程的Adams型混杂法
短句来源
     A class of k-step, (k+2) order hybrid methods for solving problems of stiff ODEs are constructed and its stability properties are discussed. The method is proved to be equal to a class of improved second derivative multistep methods. Implementated by Newton iteration, our methods are more efficient for solving non-linear stiff problems.
     构造了一类带参数的k步k+2阶的Adams型混杂法,讨论了该方法的稳定性质并证明了该方 法与一类改进的二阶导数法等价.在实现Newton迭代计算时,该方法要优于改进的二阶导数法,因此 对于求解Stiff问题,这类方法具有一定的优势.最后给出了数值实例.
短句来源
  “hybrid methods”译为未确定词的双语例句
     B-Convergence of Hybrid Methods
     混合方法的B-收敛性
短句来源
     Improvement of Zienkiewicz Plate-element by Combined Hybrid Methods
     组合杂交有限元方法对Zienkiewicz薄板元的高精度改进
短句来源
     Based on this, several hybrid methods includingLPO-MoM, IPO-BIM and IIPO-FDTD are developed.
     此基础上开发出IPO-MoM、IPO-FDTD及IPO-BIM等多种混合法计算
短句来源
     Docking of the Soman and Acetylcholinesterase(AChE) was studied by using molecular mechanics (CVFF forcefield) and two-layer molecular mechanics & quantum mechanics hybrid methods (ONIOM: B3LYP/6-31G (d)//UFF).
     根据梭曼与AChE体系的对接要求,对CVFF力场中P-F键的参数进行了修改和补充。 之后运用新建的力场参数,对梭曼与AChE进行了对接研究,并实现了应用量子化学/分子力学方法ONIOM(B3LYP/6-31G(d)//UFF)对大分子体系的计算研究。
短句来源
     Several hybrid methods including GC-AAS, GC-MIP-AES, GC-FPD and GC-MS are introduced. Sampling and storage and quality control in speciation process are also discussed.
     分析了有机金属化合物形态分析常用的几种方法,包括GC-AAS,GC-MIP-AES,GC-FPD和GC-MS等的特点,对样品的采集,贮存和预处理方法以及形态分析中的质量控制进行了讨论。
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  hybrid methods
In this paper, the isotropic and anisotropic photoelastic experimental hybrid methods for fracture mechanics are developed.
      
Hybrid methods are developed for determining individual stress components under plane stress from thermoelastically measured isopachics.
      
Heuristic and Hybrid Methods for Solving Optimal Multiple Multicast Problem on WDM Ring Network
      
Hybrid methods for calculating optimal few-stage sequential strategies: Data monitoring for a clinical trial
      
Hybrid methods that attempt to combine the best features of both methods are then considered.
      
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Based on the previous study of H. B. Seed and V. Streeter, a new difference approach is presented in the paper, using characteristicdifference hybrid method. Motion equations of visco-elastoplastic soil under the excitation of seismic shear wave are solved (appendix Ⅰ). Introducing the concept of damping degradation coefficient, an improved expression of the rot.linear properties of soil is developed so that the loading and unloading curve, i. e. the generalized Masing curve, is in consistence with both...

Based on the previous study of H. B. Seed and V. Streeter, a new difference approach is presented in the paper, using characteristicdifference hybrid method. Motion equations of visco-elastoplastic soil under the excitation of seismic shear wave are solved (appendix Ⅰ). Introducing the concept of damping degradation coefficient, an improved expression of the rot.linear properties of soil is developed so that the loading and unloading curve, i. e. the generalized Masing curve, is in consistence with both the shear modulus-shear strain curve and the damping ratio-shear strain curve (appendix Ⅱ). The seismic response of soil layer can be evaluated conveniently by the approach and the computed program presented in the paper. The approach can be also used in the microzonation, considering the effect of site soil and in the computation of response spectra.

本文在吸收Seed及Streeter等人近年来工作成果的基础上,利用特征线-差分混合解法,提出了新的差分格式并求解了包含粘性、弹塑性的水平土层在地震剪切波作用下的运动方程。在引入阻尼比退化系数的概念后,提出了能同时符合土的剪切模量-剪应变和阻尼比-剪应变非线性试验曲线的加载、卸载、再加载分析曲线——广义Masing型曲线。本文提供的方法与程序可方便地对水平土层的地震反应作出估计,可作为烈度小区划中考虑场地土影响和提供设计反应谱的分析工具。

This paper describes the application of the Galerkin finite element method and the treatment of unknown heat flow boundary condition by hybrid method to compute the crustal temperature distribution in North China Bay area. It has been shown that: (1) temperature along the Moho discontinuity is not a constant as generally assumed, but varies from a lower value of about 700℃ at its downwarping portion to a higher value around 810℃ at its upwarping portion; and (2) large shallow earthquakes occurred...

This paper describes the application of the Galerkin finite element method and the treatment of unknown heat flow boundary condition by hybrid method to compute the crustal temperature distribution in North China Bay area. It has been shown that: (1) temperature along the Moho discontinuity is not a constant as generally assumed, but varies from a lower value of about 700℃ at its downwarping portion to a higher value around 810℃ at its upwarping portion; and (2) large shallow earthquakes occurred along a belt of steep thermal gradient just above a low velocity (i. e. low resistivity) zone where the temperature is about 600℃, this may be due to the high temperature below such a zone, weakening the materials of lower crust unable to concentrate stress causing large earthquakes.

根据地下三百米深处的温度与居里面深度分布的资料,利用伽勒金有限元法配合未知边界流量的杂交法,计算了渤海湾邻近的地壳剖面的温度分布。结果表明:(1)莫氏面上的温度不是常数,最高处可达810℃;(2)大地震往往发生在温度与重力梯度带附近而温度较低密度较小的一侧;(3)本区地壳低速层的温度约为600℃,在该层以下,随着温度的增高,介质的弹性模量或粘滞系数显著减少,而泊松比反而增大,故地壳深部的剪应力减小,这说明大陆内部地震大多发生在低速层以上的原因。

On the bases of the review of various finite element methods about compressibility of materials, the deviatoric mixed variational principle is given in the form ofwheredeviatoric functionaldilatat ional functionalFurther, a hybrid method for unified analysis of compressible and incompressible materials is presented.A feature of this paper is that two parts of deviator and dilatation are considered respectively for a given clement. Especially, when present approach is used in the analysis of incompressible material...

On the bases of the review of various finite element methods about compressibility of materials, the deviatoric mixed variational principle is given in the form ofwheredeviatoric functionaldilatat ional functionalFurther, a hybrid method for unified analysis of compressible and incompressible materials is presented.A feature of this paper is that two parts of deviator and dilatation are considered respectively for a given clement. Especially, when present approach is used in the analysis of incompressible material the singularity of element flexibility matrix in existing standard hybrid methods will not arise.In this paper the elimination of related nodal variables produced by zero dilatation is taken in an element level. Therefore not only the short coming of nonpositive definitcness of Herrmnn's mixed model will be overcome, but also some troubles due to the global elimination in the usual displacement methods can be avoided. We see that the band and sparse form of the global st iffness matrix is preserved.

本文在对现有种种关于材料压缩性有限元方法系统评述的基础上,给出偏量形式的混合变分原理,进而给出可压缩与不可压缩材料统一分析的杂交方法,其特点是,对单元畸变和体变同时进行各自的杂交处理。在v=0.5时既不出现一般杂交元中性柔性矩阵呈奇异的现象,又避免了混合法中内力与位移的联立求解,保证了模式的正定性。再者,这里实行单元级消元的技巧,这就完全排除了通常位移法中由于整体消元而致的一系列毛病,保留了总刚的带形、稀疏特性。

 
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