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微分表达式
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  differential expression
     The research works are mainly concerned with the following aspects:Firstly, the differential expression of bilinear hysteretic is studied and a new differential expression is developed, then they are demonstrated.
     首先,对双线形滞后特性的微分表达式进行了研究,提出了一种新的微分表达式,并给出了证明。
短句来源
     Random seismic responses of civil engineering structure arecalculated by employing stochastic vibration equations and moment equations methods of nonlinear structures established and stochastic equivalent linearization. In this procedure of calculation, differential expression of hysteretic characteristics and seismic excitation are taken into consideration.
     通过已建立的非线性结构物随机振动方程,纳入滞后特性微分表达式,利用随机等效线性化法和矩方程法,计算了工程结构物的随机地震反应。
短句来源
     The aim of this paper is to introduce a so-called rheologic model, somewhat conveniently for describing the behavior of rock deformation with time and to derive a differential expression of constitutive equation for such modles.
     本文介绍了比较适于描述岩石随时间变形性态的所谓流变模型,推导出这些流变模型本构方程的微分表达式.
短句来源
     It also introduces every kind of integral operator signs as well as the correlation between them and is then by kelvin's differential expression of constitutive equation for rheologic model as an example to describe the process of changing the differential expression into integral one. Finally, it explains the problem of the viscoelastic theorem depending upon the basic theory of the integral operator form usually used and the calculating method of the integral operator.
     详细介绍了各种积分算子符号及其相互间的关系,并以凯尔文流变模型本构方程的微分表达式为例,叙述了微分表达式转化为积分表达式的过程,阐明了解粘弹性理论问题时常用的积分算子方法的理论基础和积分算子运算方法.
短句来源
  differential expressions
     In this note the differential expressions of divergence, curl, and gradient are derived based on one common model.
     本文根据统一的共同模式导出了散度、旋度和梯度的微分表达式
短句来源
     3. The differential expressions of both eigenvalues and the corresponding eigenvectors have been showed, and the residuals after estimated eigenvalues have been showed too while the matrix is changed.
     3.给出每一个特征向量的一阶全微分,特征值的一阶及二阶全微分表达式,进而求出每一个特征值残差佑计的理论性公式及实用性公式。
短句来源
     In the first place, we describe the structure of the maximum operator domains under the assumption that the singularly formal selfadjoint differential expressions L_2 vector-function spaces attain maximum deficiency indices on middle deficiency indices. Then on this basis, the analytical description of the corresponding self adjoint extension domains is obtained.
     本文首先给出定义在L_2向量函数空间上的奇异形式自伴微分表达式取最大亏指数以及取中间亏指数时最大算子域的构造定理,在此基础上得到了在相应情形下自伴扩张域的解析描述。
短句来源
     By solving a partial differential equation in two ways,an operational formula and two differential expressions for Laguerre polynomials are obtained.
     由两种方法求解一个偏微分方程,得到了一个算子公式和关于Laguerre多项式的两种微分表达式
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  “微分表达式”译为未确定词的双语例句
     parameter form of the hyperbola fitted to capillary pressure laboratory data, obtain capillary pressure curves analytical function, differential and integral expression by least*. squares solution. It can fit the capillary pressure curves throughout the range of data, and obtain accurate the inlet saturation for centrifuge*.
     用三参数双曲线方程拟合离心毛管压力实验数据 ,采用最小二乘法求解 ,获得毛管压力曲线解析表达式及其积分表达式和微分表达式 ,可拟合各类毛管压力曲线整个数据范围 ,便于曲线微分、积分、,准确计算岩心的入口饱和度 ,光滑实验数据、进行曲线外推求阈压
短句来源
     This paper has investigated into the relation between the apparent viscosity and temperature, analyzed usual viscosity-temperature formula, discussed viscosity-temperature relation at zero and given electric field, and compared ERF viscosity to intensity of electric field at different temperatures.
     本文对ERF的表观粘度与温度的关系进行了研究. 从推导粘温关系的微分表达式入手,对常用的粘温公式进行了分析,对ERF在零电场和给定电场下的粘温关系进行了讨论,并用一种ERF的粘度在不同的温度下与电场强度的关系曲线来加以对照。
短句来源
     By building a dipole model for lightning, differential equations regarding horizontal electric field Er, vertical electric field Ez and tangential magnetic field Bφof any field point in lightning space are derived.
     通过建立雷电偶极子模型,得到了空间任意场点的水平电场Er、垂直电场Ez和切向磁场Bφ的微分表达式
短句来源
     For the Morgenstern-Price method,according to the force and moment equilibrium conditions of the slice,the expressions in algebric form (instead of differential or integral form) for the factor of safety Fs and for the scaling factor λ are derived respectively,and only a simple iterative scheme is involved for rapidly obtaining converged solutions.
     对于 Morgenstern–Price 法,根据条块力与力矩平衡条件,分别推导出安全系数 Fs与比例系数 λ 的代数表达式(取代了传统的积分或微分表达式),只需简单迭代即可快速得到解答。
短句来源
     The Bargmann Fock spaces corresponding to ordinary complex ,anticommutative,and q deformed variables are considered, and it is proven that for the Hilbert structures in these spaces, the inner products can always be expressed in differential forms.
     本文考虑普通复变量、反交换变量以及q-变型变量相对应的Bargmann-Fock空间,证明了这些空间的Hilbert结构中,内积均可用微分表达式来表示。
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  differential expression
Heterogeneity and Differential Expression of MUP Proteins as a Genetic Basis of the Physiological Activity of Androgen-Dependent
      
Differential Expression of the Isoforms of Human Vascular Endothelial Growth Factor and New Approaches to Therapeutic Angiogenes
      
Let q (x) be a positive function given on the interval I of the real axis; let P be the minimal operator generated in L2(0, +∞) by the differential expression P[·]=-d2/dx2+q(x); let Q be the operator of multiplication by the function q(x).
      
We consider a self-adjoint differential expression of even order in a space of vector-valued functions.
      
We prove that an arbitrary generalized resolvent of the minimal operator L0 induced by this differential expression is an integral operator and we derive a formula for all of the spectral functions (orthogonal and nonorthogonal) of the operator L0.
      
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  differential expressions
Description of the self-adjoint extensions of quasiregular operators generated by differential expressions with two terms
      
The spectral properties of differential operators generated by these differential expressions are investigated.
      
Gene expression profiles of 14 common tumors and their counterpart normal tissues were analyzed with machine learning methods to address the problem of selection of tumor-specific genes and analysis of their differential expressions in tumor tissues.
      
Results: There were differential expressions of nine prostate-associated specific genes in CaP as compared with normal prostate, among which, 7 were significantly up-regulated and 2 were down-regulated.
      
Changes in environmental parameters, like temperature and/or hypoxia can be possibly related to differential expressions of HSPs, which can result in severe adverse developmental outcomes.
      
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In order to simulate the large-scale dynamic process and improve the numerical weather prediction, a primitive equation hemispherical model is developed.Gharacteristic features of the model are as follows: The thermodynamic equation is written in the form as equation (6). The difference schmes of the model preserve total energy but the difference schemes of the pressure gradient and hydrostatic relation have not any constraint. The physical factors of orography, friction, horizontal diffusion, large-scale precipitation,...

In order to simulate the large-scale dynamic process and improve the numerical weather prediction, a primitive equation hemispherical model is developed.Gharacteristic features of the model are as follows: The thermodynamic equation is written in the form as equation (6). The difference schmes of the model preserve total energy but the difference schemes of the pressure gradient and hydrostatic relation have not any constraint. The physical factors of orography, friction, horizontal diffusion, large-scale precipitation, evaporation and various non-adiabatic heating are included. The radiational heating and cooling is designed to evaluate directly from the differential expression (21) and (22), and the ground temperature is calculated from the solution (24) without iteration.The model was tested to give an example of 48 hours predition.

为了模拟大尺度动力过程并改进数值预报,开展了一个原始方程的半球数值模式的研究。 模式的主要特点是:将热力学方程进行改写,整个差分格式保持总能量守恒,但气压梯度项和静力关系的差分格式可以不受任何限制。模式包括地形、摩擦、水平扩散、降水、蒸发和各种非绝热等物理作用。幅射作用直接由导出的微分表达式计算;地面温度由地面热量平衡方程解出而不需要迭代计算。 最后给出这一模式的一次48小时预报个例的试验结果。

The aim of this paper is to introduce a so-called rheologic model, somewhat conveniently for describing the behavior of rock deformation with time and to derive a differential expression of constitutive equation for such modles. It also introduces every kind of integral operator signs as well as the correlation between them and is then by kelvin's differential expression of constitutive equation for rheologic model as an example to describe the process of changing the differential expression into integral one....

The aim of this paper is to introduce a so-called rheologic model, somewhat conveniently for describing the behavior of rock deformation with time and to derive a differential expression of constitutive equation for such modles. It also introduces every kind of integral operator signs as well as the correlation between them and is then by kelvin's differential expression of constitutive equation for rheologic model as an example to describe the process of changing the differential expression into integral one. Finally, it explains the problem of the viscoelastic theorem depending upon the basic theory of the integral operator form usually used and the calculating method of the integral operator.

本文介绍了比较适于描述岩石随时间变形性态的所谓流变模型,推导出这些流变模型本构方程的微分表达式.详细介绍了各种积分算子符号及其相互间的关系,并以凯尔文流变模型本构方程的微分表达式为例,叙述了微分表达式转化为积分表达式的过程,阐明了解粘弹性理论问题时常用的积分算子方法的理论基础和积分算子运算方法.

In this note the differential expressions of divergence, curl, and gradient are derived based on one common model. Each of them involves the limiting value of a differential quantity per unit volume. By taking advantage of some differential relations of the unit vectors weighted by the metric coefficients, the full expressions of these three quantities in vector analysis can be readily derived.

本文根据统一的共同模式导出了散度、旋度和梯度的微分表达式。所有这些量都是单位容积中某一微分量的极限值,在利用了单位矢量在度规系数加权下的某些微分共系式后,我们立刻就能导出矢量分析中这三种量的全部表达式。

 
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