RS码的最小重量译码算法及其实现

本文研究ＲＳ码的最小重量译码算法，这种算法以捕错译码技术为基础，结合对错误的系统搜索来实现译码，算法的原理简明，特别适合于大纠错能力的ＲＳ码的译码运算，文中还提出采用该算法的多路平行译码器的实现方案，其传输速率可达１０Ｍｂｉｔｓ／ｓ以上。     

磁化水对棉花幼苗生理效应的初步研究

棉花种子、幼苗经磁化水处理,子叶中硝酸还原酶(NR)活性和叶绿素、可溶性糖及真叶中脯氨酸含量提高,但种子发芽率显著下降。幼苗经低温处理(3℃),电导率降低。结果表明:磁化水具有促进幼苗进行氮代谢、光合作用和提高其抗冷性的效应,但对种子萌发有明显抑制作用。     

基于遗传神经网络的数字化渐进成形回弹预测

针对传统BP神经网络具有易陷入局部极小等缺陷,采用遗传算法(GA)对BP神经网络(初始权值、阈值)进行了优化,将人工智能技术和激光扫描测量技术有机结合,建立了金属板材数字化渐进成形回弹预测的遗传神经网络模型,对计算结果与BP神经网络预测结果进行比较,表明遗传神经网络预测值与实测值之间具有很高的相关性和精确度,该模型可用于预测渐进成形工艺参数与回弹量之间的映射关系,为金属板材数字化渐进成形回弹量的预测开辟了一条新的途径.     

离子聚合物金属复合材料电致动特性数值模拟

基于ANSYS参数化开发平台,通过编制龙格-库塔算法用户子程序求解离子浓度偏微分方程,采用温度场模型等效模拟水分子重新分布引起的机械变形,制定分析流程,对离子交换膜金属复合材料(IPMC)的电致动特性进行了数值模拟.研究了在外加电场作用下,Na 迁移运动规律与IPMC变形过程特征,通过结果比较证明了所提出方法的正确性.     

空间信息网络中的资源映射与调度研究

目前空间信息网络中卫星资源不尽相同,且卫星节点的星间链路动态变化,给资源映射造成困难,使得网络资源利用不充分.如何实现空间资源利用的最大化,成为亟待解决的难题.为解决上述问题,提供了一种方法:首先,将卫星网络可以提供的资源和任务指标映射表达为多维矢量;再通过线性规划,使资源矢量和任务矢量相匹配,从而使网络资源能更充分地被利用.     

Influence of graphene microstructures on electrochemical performance for supercapacitors

The influence of variant graphenes on electrochemical performance for supercapacitors was studied comparatively and systematically by using SEM, FTIR and Raman spectroscopy, cyclic voltammetry (CV), galvanostatic charge/discharge and electrochemical impedance spectroscopy (EIS). The results revealed that: 1) the nitrogen-doped graphene (N-G) electrode exhibited the highest specific capacitance at the same voltage scan rate; 2) the specific capacitance of the N-G reached up to 243.5 F/g at 1 A/g, while regular graphite oxide (GO) was 43.5 F/g and reduced graphene oxide (rGO) was 67.9 F/g; 3) N-G exhibited the best supercapacitance performance and the superior electrochemical properties, which made it an ideal electrode material for supercapacitors.     

Studies on China graphene research based on the analysis of National Science and Technology Reports

The study tries to reveal the situation and development trends of China's graphene research utilizing National Science and Technology Reports (NSTR) as the new data resource.Findings show a continual increase of graphene projects sponsored by the government.Most of them are from the National Basic Re-search Program of China and the National High-tech R&D Program, which reflects mainly aiming for breakthroughs of China's graphene research in major frontier fields and promoting industrial competitive-ness.As a new material in nanometer area, the graphene research mainly focuses on nanometer research area.Besides, it has also involved more in the promising applications, such as advanced energy technol-ogy, biological and medical technology, testing and analytical instrument technology, etc.Major players are universities and research institutes, and they have collaborated a lot.Few enterprises have played an important role in the collaboration network, so China' s graphene research is still mainly in the basic re-search step.Key scholars with their research interests have been revealed.     

河南省旅游度假区建设因子重要度辨识

随着度假旅游的不断升温,河南省的旅游度假区建设已经进入了一个快速发展的阶段,依托不同资源建设的各种类型的度假区灿若繁星.在度假区建设中也出现了游客需求不明、建设内容不清、建设重点不突出等多种问题.因此,对旅游度假区建设中的主要因子进行科学辨识已经成为一项重要研究课题.以旅游资源学、旅游经济学和游客心理学作为理论基础,选取河南宝天曼生态旅游区为研究标本,对度假客源进行调查取样,同时,结合《旅游度假区等级划分》(GB/T 26358—2010),对旅游度假区建设因子重要度进行分析,以期尝试对河南省旅游度假区开发建设因子重要度进行科学辨识,从而达到促进旅游度假区科学健康发展.