double exchange meaning in English
双交换
双重交换
Examples
- The double exchange interaction founded by zener in early 1950 ' s , and developed by anderson and de gennes later is a better theory in describing the conductive behavior in the compounds
最后由anderson等人发展了五十年代初期由zener创立起来的双交换作用理论，为解释庞磁电阻效应提供了一条途径。 - A review of the cmr mechanism in perovskites . this chapter gives review of cmr mechanism , earlier research works on gmr mechanism are listed . some special physics concepts , such as double exchange ( de ) , jahn - teller ( j - t ) effect , electron - phonon coupling , are interpreted
第三章综述了对钙钛矿结构氧化物巨磁电阻效应机制的研究，对cmr产生机理做了简单的介绍，并对诸如双交换( de )作用、 jahn - teller效应、电荷有序等物理概念有所认识的基础上总结了已经报道的对巨磁电阻效应机制的研究，最后指出探索cmr效应及其相关现象的途径。 - We studied the influence of the interface strain and it shows that the lattice mismatch between substrate and film is the main reason of the above observations . expand strain decreases tm - i with increasing resistivity and compressed strain has the opposite effect . using double exchange model of zener these results can be explained qualitatively
27欧姆厘米，转变温度是78与154开尔文，磁场强度为7t时，磁阻率为习3及巧6 x结合双交换模型和不同的应力作用，逐一解释了产生差异的缘由，其中我们也讨论了具有）取向的la 。 - This thesis contrasts and analyses the different calculation - method , and improves the genetic algorithm in the parameter inversion of the rock and soil engineering . the strategies are mainly in the following three aspects : 1 , new searching way is compositely searching genetic algorithm which is made up of the acceleration method and genetic algorithm when it partially calculates in the later time ; 2 , index function is inducted in gengetic operators , at the same time repeated select and double exchange pool are used ; 3 , splicing crossover , which reserves some new evolution factions , improves authority function accaunting the capabilities and kinds
本文对优化算法中不同求解方法进行对比分析，针对遗传算法在岩土工程参数反演运算中进行了改进，改进的策略主要集中于三个方面： 1 、提出了在遗传算法中融入形加速法的改进方法? ?复合遗传搜索法； 2 、针对遗传算子的选择策略，引入指数适值方法，设置双交换池，提出了重复筛选法； 3 、加强对劣势种群的内部优良信息的遗传功能的改进，引入权函数，扩大可交叉算子的种类，保留各算子的进化功能，提出了融合交叉运算法。