| 1. | What ' s more , the combination of equilibrium axiom and mathematical methods helps to make solving fermat - steiner problems easier 同时,用势能最小原理和数学方法相结合,可以更简便地解决费马斯坦勒尔问题。 |
| 2. | The least potential energy axiom , which offers mechanics grounds for solving fermat - steiner problems , proves it in diversified mathematical methods 摘要势能最小原理为解决费马问题提供了力学依据,本文用不同的数学方法进行了证明。 |
| 3. | Based on the principal of the least prediction error and introduced relation analysis method , a new prediction method was advanced in the field of local climate prediction 摘要针对局地短期气候变化的非线性特征及其难以用模型准确刻画的现状,根据预报误差最小原理,引入关联度分析,提出了一种关于局地短期气候预测的关联度方法。 |
| 4. | Under the guide of the theory of minimum energy of the system , catenary equation specifying the facial size of the circumgyrating object is the minimum in static state is involved as the form of the research about transforming grain boundary 基于系统能量最小原理,本文选择静态条件下旋转体表面积最小的悬索方程作为研究变形晶界的形态。 |
| 5. | This method not only can deal with the problem of singularity , but can simplify the numerical process of interpolation function , based on the principle of minimum total potential energy , the formulas of pim are arrived 固定节点法不但可以方便地消除系数矩阵奇异问题,而且插值过程很简单。由势能最小原理,推导了点插值方法的控制方程。 |
| 6. | ( 3 ) . the on - line testing results for no . t13 tank in zhenhai storage company by using ae method was operated . according to the principle of least lucy value , the location sound speeds for the tank above have been confirmed ( 3 ) .通过对镇海仓储公司t13号储罐的声发射在线检测,发现该储罐无泄漏迹象,根据lucy值最小原理法可知,定位该储罐的定位声速有两种: 1 . 2 1 . 4m / ms和3 . 2m / ms 。 |
| 7. | Abstract : based on principle of minimal leakage magnetic field energy for current distribution of parallel coils in the primary side of transformer and also on finite element method , the method for calculating the current distribution of parallel coils in the primary side is studied and solved 文摘:以变压器一次各并联线圈的电流分配一定满足漏磁场能量最小原理为基础,结合有限元方法研究了计算一次各并联线圈电流分配的方法。 |
| 8. | According to the minimum principle in energy , we analyze the microcosmic mechanism of magnetic domain construction and the main factor that affect the shape , size and connecting of the magnetic domain etc . from the microcosmic mechanism of ferromagnet , we analyze how stress influence the magnetic domain and magnetic domain wall , and discover the increase of stress energy and magnetism elasticity energy which destroy the balance of system energy make up the influence of magnetic domain structure , then set up basic disciplinarian between stress and characteristic of magnetism 同时根据能量最小原理,从理论上分析了磁畴结构存在的微观机理以及影响磁畴结构运动、变化的主要因素,得出了应力的存在将影响磁畴的形状、大小和搭配方式等结论。从铁磁晶体的微观机理出发,研究了应力对磁畴和磁畴壁的影响,发现应力影响磁畴结构的本质是由于应力的作用使得铁磁晶体增加了应力能和磁弹性能,体系为了达到新的平衡,导致了磁畴结构变化,并研究了应力与铁磁晶体磁特性之间的基本规律。 |
| 9. | The total energy expression of the sample is build through analyzing its energy composition . according to the principle of the minimum energy , using the connection between stress and strain and the connection between magnetostriction and magnetism strain , an expression for the mean field parameter is derived 通过分析所研究试样的能量组成,写出了试样总能量表达式;根据能量最小原理,利用应力、应变之间的关系和磁致伸缩系数、磁应变之间的关系,得到了分子场参数表达式。 |
| 10. | The deflection theory is then used to obtain the most unfavorable moment of the structure under live load , and after the preliminary controlling moment of the structure is obtained by superpositioning the dead and live load moment , the moment and hanger forces arc to be adjusted by the internal force equilibrium method to finally obtain the rational hanger forces 首先用弯矩能量最小原理求出初步索力,然后利用索力得到恒载弯矩,利用挠度理论求出活载作用下结构的最不利弯矩,将恒载与活载弯矩叠加,获得结构的初步控制弯矩后,采用内力平衡法对弯矩和索力进行调整以得到合理的索力。 |