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- Variational method for adaptive plane gridding image segmentation[J]. 引用该论文 郑毅;刘上乾.
- For SU(2) lattice gauge theory, Manton action is studied by means of improved variational method. 本文用改进变分法对SU(2)格点规范理论的Manton作用量进行了研究。
- Variational method and TDA approximation was applied to construct the SD pairs in the SD-pair shell model (SDPSM). 在SD对壳模型的理论框架下,利用变分法及TDA近似确定SD对结构。
- The electronic structure of the bcc Fe (001)edge dislocation core is investigated using the first principles discrete variational method(DVM). 本文用密度泛函理论框架下的离散变分方法 (DVM)研究了bccFe[10 0 ](0 0 1)刃型位错体系的电子结构 ,给出了结合能、原子间相互作用能以及电荷转移信息。
- Combining PRISM theory, MD simulation and Variational method, a single-site semiflexible model is proposed to describe atactic polystyrene (aPS) melt. 结合PRISM理论、MD分子模拟和变分法,得到了可以描述聚苯乙烯熔体的单点半柔性链模型,提出了一个研究实际聚合物体系的有效方法。
- The relation between the exciton binding energy and the spherical quantum dot radius has been calculated using the variational method. 摘要用无限深势阱和有限深势阱2种模型,计算了激子束缚能与球形量子点半径的关系。
- The chemisorption of Ce, Sm and Yb on Si(lll) surface are studied by calculation with local density formalism (LDF) and discrete variational method (DVM). 本文对几种稀土元素(铈、钐、镱)在硅表面的化学吸附进行了理论计算。
- By the Euler equation and juncture equation of the variational method,this pa-per has made but a solution to the safety factor of simple homogeneous soil slopes. 用变分法中的欧拉方程与交接条件,推导出了简单均质土坡在时计算其稳定性安全系数的一个理论公式。
- In this paper, derive the evolution equations for the parameters of the bright-soliton-like pulses in optical fibers by means of variational method from the MNLS equation. 摘要本文从含修正的非线性薛定谔方程出发,采用变分法,导出了三阶色散情况下光纤中类明孤子参数随传输距离的演化方程组;
- This paper gives the analytic solutions of axisymmetrical field in a nonlinear longitudinally inhomogeneous self-focusing fiber by using the variational method. 本文用变分法求出了非线性轴向不均匀自聚焦光纤轴对称场的解析解。
- The minimum of true objective functional was derived by variational method, and some curve such as optimal LPG consuming, optimal rising temperature and opt... 此最优控制模型为铜精炼阳极炉还原过程在线优化控制以及节能降耗提供了理论基础。
- The finite element method does not exhaust the possibilities for variational methods. 有限单元法不能排除变分法。
- The relatively new finite element method and associated variational methods are developing into important numerical tools. 相当新的有限单元法和相关的变分法正在发展为重要的数值手段.
- The results of Berger and Chen are extended. And the variational method is proved to be available to solve the existence and uniqueness of the almost periodic solutions of nonlinear Duffing equations with damping. 推广了Berger和Chen的结果,证明了经典的变分方法对于解决带阻尼的非线性Duffing方程有界解的存在唯一性问题是同样适用的。
- The electronic structure of a Lindqvist type [Mo 7O 24 ] 6 anion with 5 different types of counterion(K +?Na +?NH 4 +? + and [NH 3Pr i] +) was calculated by using the Discrete Variational Method coupled with Density Functional Theory (DFT DVM). L indqvist型 [Mo7O2 4 ]6 - 是一类具有抗肿瘤活性的多酸药物。 运用密度泛涵理论中的离散变分方法(DFT- DVM)对一系列具有不同平衡离子的 [Mo7O2 4 ]6 -的电子结构进行了计算。
- The electronic structure of the Anderson flat type [H x PtMo 6O 24 ] (8- x )- ( x =3.5?4.5 and 6) anion was calculated by using the Discrete Variational Method together with Density Functional Theory (DFT-DVM). 运用密度泛涵理论中的离散变分方法 (DFT -DVM)对不同质子化程度的 [HxPtMo6O2 4]( 8-x) -(x =3.;5、4
- This paper uses the variational method to calculate the configurations of projectile nose with the minimum drag under the conditions that the sum of nose wave resistance and frictional resistance satisfies the extremes (Euler equation). 本文通过变分法,在同时考虑弹体头部波阻、摩擦阻力二音之和满足其极值条件(欧拉方程)时,得到了最小阻力的头部外形。
- The existence of a homoclinic orbit for a singular second order planar Hamiltonian systemis proved by using variational methods. 用变分方法证明了二阶奇异平面哈密顿系统的同宿轨道的存在性。
- By using variational methods,the existence of positive solution is obtained for a class of asymptotically linear Neumann problem. 利用变分法获得了一类渐近线性N eum ann问题正解的存在性结果.
- Schrodinger Equation, Bound States, Hydrogen Atoms, Wave Packets and Uncertainty Relations, WKB Approximation, Principle of quantum mechanis, Perturbation Theory, Variational method, spin and Angular Momentum, Scattering Theory. 薛丁格方程、缚态、原子、包及测不准原理、kb近似、子力学的原理、扰论、方法、旋与角动量、射论。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries