查询词典 integral

The research achievement are acquired as follows: 1From mathematical models for inverse scattering in two dimensional homogenous media including Dirichlet, Neumann, Robin,all kinds of probable mixed boundaries and cracks, direct and inverse scattering are discussed, and ill-posed integral equation and indicator function method are formulated for the diverse of boundary identification. It is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solving it by virtual of regularity method, meanwhile, some numerical tests are given.

本研究取得了如下研究成果： 1）在二维均匀介质逆散射各种边界识别的数学模型（包括Dirichlet，Neumann，Robin，各种可能的混合边界问题，裂纹问题）下，分别考虑了正散射问题和逆散射问题，推导了上述各种边界识别的不适定积分方程以及指示函数方法，由于积分方程的核充分表征了散射物的边界，由此说明只要利用正则化方法求解该积分方程，就可以确定散射物的边界，并给出了一些数值实验。

By usingthe relation between the Bergman kernel and the Riemann mapping and Plemly for-mulae,the second boundary integral equation about the Bergman kernel is obtained,moreover,the integral kernel is a continuous,without any singularity,parametized Neu-mann kernel.We discuss the case of some symmetric property,and get correspondingresults.

主要利用Bergman核与Riemann映照之间的关系，推导出Bergman核满足带有参数化Neumann核的第二类边界积分方程，积分核是连续的没有任何奇性，并讨论了具有某种对称性质的情形。

Say from the angle of mathematics, This software mainly plays to show the integral calculus of Bernhard Riema , together two heavy integral calculuses of a function.

从数学的角度说，本软件主要将演示黎曼积分、齐次函数的二重积分。

In this paper,we use the fuzzy integral as the combination operator,give a kind of combination forecasting model that is on fuzzy integral,this model can reflect both the "importantance" of every models and the of the models.

本文利用Choquet模糊积分作为组合算子，给出一种基于模糊积分的非线性组合预测模型，该模型既能反映各种预测模型的"重要性"，又能反映各个预测模型之间的交互作用，并用此模型给出中国卫生总费用的预测。

Secondly, we introduce the integral operator , where is an operator-valued functions, and derive some argument properties of the integral operator and some interesting corollaries as the special case.

二、将一类被积函数为复值函数的积分算子推广到被积函数为解析算子值函数的情况，并讨论了这类积分算子的辐角性质。

The integral point distribution of the whole calculation domain is changed and the integral precision is promoted by this method.

自适应高斯积分法通过指定条件下的局部单元细分，改变了整个计算区域上的积分点分布，提高了数值积分精度。

Meanwhile, the conservation of integral is proved strictly. Under the linear elastic situation, the relation of integral and stress intensity factor KI is derived.

通过I型裂纹的应用，由导出之的结果与应力强度因子手册解符合得较好，同时给出了积分偏斜应变能释放率的物理解释。

It is convenient to evaluate using the imaginary time path integral representation,, with the integral take over the paths constrained by .

用虚时间路径积分表象来估算是方便的，其中，对所有及被所限的路径进行积分。

A boundary integral formulation describing constant-αforce-free field with finite energycontent in the semi-infinite space above the sun was proposed(Yan,1995), this formulationcontains boundary field and its normal gradient under integral sign.

颜毅华1995年在太阳物理杂志上发表一文，就太阳磁场提出了一个具有有限能量的线性无力场模型，并对磁场给出了一个边界积分表示公式，该公式用边界上的已知磁场值和未知的磁场法向导数值来确定空间任意点的磁场值。

It is pointed out at first time that two popular methods of investigating intermittency——-bin-wise integral and strip integral are inequivalent when the translational invariance of semi-inclusive density functions is destroyed, and the anomalous scaling of these two quantities may originate from different dynamics.

我们在研究中首次指出，研究间歇现象的实验中目前流行的两种统计阶乘矩方法：关联函数Bin-Wise和Strip积分方法并不等价，它们所得到的阶乘矩的不同标度行为可能反映了不同的物理起源。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷