查询词典 variational problem

My research tries to find the variational characteristics of the lung cancer patients'sublingual venae, which can be use as the basis for general investigations of highly dangerous people, and diagnose and treat lung cancer patients in the early stage. It will be play an important role in improving the level of peoples'health.

将研究对象分为4组，观察组选择经病理学检查或细胞学检查确诊的152例原发性支气管肺癌患者，其中男88例，女64例，平均年龄60.04±11.98岁，临床分期Ⅰ期32例，Ⅱ期26例，Ⅲ期52例，Ⅳ期42例，经病理确诊的共81人，其中非小细胞肺癌66例，小细胞肺癌15例。

Angular Momentum Algebra, Addition of Angular Momenta, Identical Particle Effect, One Dimensional Periodic Quantum Systems, Introduction to Quantum Statistical Mechanics, Time-independent Perturbation Theory, Fine Structure, WKB Approximation, Variational Principle, Aharonov-Bohm Effect, Quantum Transition.

量子力学( S0583)(0，3)角动量代数、角动量加成、等同粒子效应、一维周期性量子系统、量子统计简介、定态微扰理论、精细结构、 WKB 近似、变分法、 Aharonov-Bohm 效应、量子跃迁。

Establish the modified functional of the analysis of the beam element and plate element, base on the generalized variational principle and penalty function method.

同时指出了选择合理的坐标原点以便充分发挥覆盖位移函数的全阶项对总平衡方程组成时刚度矩阵和荷载矩阵的贡献，使求解精度得到提高。

The energy curve of the body-centered cubic structure of theH92 +cluster is calculated by means of variational method.

用变分法计算了H29+团簇的体心立方结构与能量。

According to the dynamics analysis of the cotton sliver coiling process,by considering the minimum friction of cotton sliver caused by screwy pipes as objective function the design of screwy pipes of can coiler is explained based on the theory of the variational direct-method.

对棉条圈条过程定量地进行了动力学分析，以棉条所受曲线斜管摩擦力最小为目标函数，基于变分问题直接法原理设计出圈条盘螺旋形曲线斜管。这种螺旋形曲线斜管充分利用圈条盘的转动对棉条产生的离心力甩摆作用，使棉条所受曲线斜管摩擦力较小，从而使出条更顺畅；在一定程度上降低了圈条盘螺旋形曲线斜管堵眼频率与条筒乱条几率，使其更适应现代并条机生产高速化的要求

Using the first-principles self-consistent discrete variational method based on density functional theory, we investigated the effect of alloying element Mn on the electronic structure of the kink on the [100](010) edge dislocations in bcc iron. We calculate the structural energy, the interatomic energy, the local density of states and the charge density.

用基于密度泛函理论的自洽离散变分方法研究了合金元素Mn对bcc Fe中[100](010)刃型位错上扭折的电子结构的影响，计算了格位能、原子间相互作用能、电荷密度及态密度等物理参量。

In addition, some comparisons have been made between variational method and elastic theory method in this paper, proved the former to be a faster and efficiency method.

另外，本文还对变分法和弹性理论法在壁板桩中的应用进行了初步对比，二者结果相当，但是前者求解更加快速。

The total density of state of the the boron-rich rare-earth borides〓(R=La, Nd, Sm, Eu)are calculated using discrete variational X〓method.

计算所得到的态密度与XPS价带谱基本上相符，由于态密度与XPS价带谱的对应关系，表明计算结果的正确性。

Finally the effect of quantum lattice fluctuation in exciton state is studied by variational method.

论文的最后研究了量子晶格涨落对激子态的影响，通过对哈密顿量的幺正变换，得到激子态的激发能，对计算结果进行分析最后给出结论。

In this review we provide new application of variational transition state theory -inreaction at gas-solid interface ,with emphasis on dissociation absorption of gas-phase moleculeon the surface of face-centered cubic crystal.

提供了变分过渡态理论的新应用－用于气固界面上的反应，重点是气相分子在面心立方晶体上发生的解离吸附反应，给出了反应的物理图象，用新的势能面计算了H＿2在Ni（100）面上的解离吸附的速率常数，结果与Truhlar的结果相符。

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。