propagation structure

We focus on the introduction of the structure, algorithm and the applications for back-propagation artificial neural network ( BPN) in this paper.

该文着重介绍了误差逆传神经网络模型的结构、算法及其在农业和生态学中的应用研究。

It is found that intragranular structure is formed, and the tortuous routes of crack propagation and the branching, deflecting and bridging are also observed on the fracture surface.

通过对其断口的观察，发现形成了晶内型结构，并观察到了裂纹曲折的扩展路径以及裂纹的分叉、偏转、桥联，这些有助于材料强度和韧性提高的现象。

The subject studied in cutting propagation of clone bone structure and properties of Transpiration.

本课题对华中构骨无性扦插繁殖技术及其蒸腾耗水特性进行研究。

Love wave propagation in an inhomogenous layered piezoelectric structure

非均匀压电层状结构中Love波的传播

In the Yanshanian period, with continuous NW-directed propagation of the front of the southeastern Guangxi thrust nappe structure, the Jurassic-Cretaceous foreland basin also migrated continuously in a NW direction.

进入燕山期，随着桂东南逆冲推覆构造前缘不断地向NW方向扩展，侏罗纪&白垩纪时期的前陆盆地也不断地向NW方向迁移。

The numerical calculation of the formation and propagation process of oxy-hydrogen detonation wave was made. Results show that CESE method and elementary chemical reaction model are applicable to simulate the refined structure of oxy-hydrogen detonation wave.

对氢氧爆震波的形成和传播过程进行数值计算，结果表明，应用CESE方法和基元化学反应模型能够成功地模拟氢氧爆震波的精细结构。

An analysis of age structure and the strategy for asexual propagation of Aneurolepidium chinense Population

羊草种群年龄结构及无性繁殖对策的分析

Through changing the structure parameter , peoples can change propagation properties of PCF.

改变光子晶体光纤的结构参数可以改变它的传输特性.

In perspective of marketing propagation, this text focused on the structure of the brand propagation system of tourist destination, discussing the ways 、 measures and media of propagation and building up a clearly propagation network on tourist destination brand.

从品牌营销最主要的环节营销传播的角度，集中探讨了旅游目的地品牌传播体系结构。对传播途径、手段和媒介作了系统概述，建立了一个清晰的品牌传播网络。

Study on Flame Structure and Propagation Characteristic of Methane and Coal Dust

甲烷、煤尘火焰结构及传播特性的研究