查询词典 second boundary value problem

The second part(Chapter 4,Chapter 5 and Chapter 6)is devoted to freeboundary problems(inverse boundary value problems or geometric inverse prob-lems)for elliptic systems of partial differential equations in continuum mechanics.

第二部分(即第四章、第五章、第六章)讨论力学中椭圆型方程组的自由边界问题(也称逆边值问题或几何反问题)及数值分析，主要涉及到渗流与气体动力学中的一些问题。

Two-point boundary value problems of second order mixed type integro-differential-difference equation is studied by means of differential inequality theories.

利用微分不等式技巧研究了某一类二阶混合型积分微分差分方程的两点边值问题，在上下解存在的条件下，得到了解的存在性和唯一性定理。

The existence of solution is studied for a class of second - order periodic boundary value problems with first applying Leray - Schauder fixed point theorem, two exislence theorems are established.

考察了一类非线性项含有一阶导数的二阶周期边值问题的解的存在性，其中非线性项是Carathèodory函数。通过构造非线性项的高度函数并且利用Leray-Schauder不动点定理建立了两个存在定理。

The second part of this paper is to consider the Fujita critical exponent of the semilinear parabolic equation with Neumann boundary value on unbounded daomain.

第二部分是对无界区域上带Neumann边值的半线性抛物方程的Fujita临界指数的研究。

To the knowledge of the authors, singular second-order differential equation boundary value problems have been studied extensively in the literature.

中文摘要：对大多数作者来说，奇异二阶微分方程的研究已经有了一些初步的研究成果(参见文献[19])。

This algorithm carries on two value imagery processing in the difference foundation, according to the human body statistical characteristic, proposed through the judgment projection curve second time derivative size, determines the human face boundary the method.

该算法在差分的基础上进行二值图像处理，根据人体的统计特征，提出通过判断投影曲线的二阶导数大小，来确定人脸边界的方法。

In the second chapter we consider the existence of multiple nontrivial solutions for a class of quasilinear elliptic boundary value problems.

在第二章，我们运用下半连续及鞍点定理得到了一类拟线性椭圆边值为体的多重非平凡解的存在性。

The purpose of the first part is to in-vestigate superconvergence phenomena for the second order elliptic boundary-value problems over triangulations, by using least-squares mixed finite ele-ment method.

第一部分的目的是研究基于三角形剖分的最小二乘混合有限元方法的超收敛性。

Under the condition of the borehole and sandstone formation filling with oil and water, respectively, the ability is different when different energy windows are selected to distinguish formation by simulating the detector response spectrum of various diameters and length of NaI and BGO crystal. The C/O value difference of BGO crystal is higher than that of NaI crystal when the energy window includes photoelectric peak, the first and the second escape peaks, but it is less affected by the different sizes of detector crystal. Using photoelectric peak corresponding to the energy window, the C/O value difference of BGO crystal detector is much larger than that of NaI, but it increases with the crystal size increasing. The C/O value is greatly affected by energy drifting, while relatively a little by energy resolution.

对于井眼和地层流体分别为油和水砂岩地层，模拟改变NaI和BGO晶体探测器的直径和长度时的非弹性散射γ射线响应能谱，采用不同能窗处理方法对地层流体的分辨能力不同，选取光电峰和第一、第二逃逸峰对应的能量窗时，BGO晶体探测器比NaI晶体探测器测量的C/O差值大，但受尺寸的影响不大；采用光电峰对应的能量窗时，BGO晶体探测器测量的C/O差值比NaI的大得多，且随尺寸的增加差值增大；能量道的漂移对C/O值影响较大，而能量分辨率对差值影响相对较小。

A second version of assign takes an integral value and an element value. It replaces the elements in the container by the specified number of elements, each of which has the specified element value

assign 运算的第二个版本需要一个整型数值和一个元素值做参数，它将容器重置为存储指定数量的元素，并且每个元素的值都为指定值

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。