现代信息技术在大学英语教学中的应用

从信息技术的发展趋势入手,分析了信息技术在英语教学中的应用现状,提出了进一步加强信息技术与英语教学整合的措施。     

环氧乙烷四氢呋喃共聚醚[P(E-CO-T)]的研制

研究了环氧乙烷与四氢呋喃的共聚.使用BF_3络合物为催化剂,1,4-丁二醇为共催化剂.找到了溶液聚合和本体聚合适宜的工艺条件.在此条件下,环齐聚物的生成量为8％左右.找到了方便易行的纯化方法,通过纯化可把聚醚的环齐聚物含量降到1％以下,有效地提高了产品的质量。     

混合氯化稀土催化合成DOP,DOM和DOA

本文报道:价廉的混合氯化稀土,对合成DOP等增塑剂有明显的催化效果。产品精制简单,转化率高,有应用前景。     

Face Recognition Based on Support Vector Machine and Nearest Neighbor Classifier

Support vector machine (SVM), as a novel approach in pattern recognition, has demonstrated a success in face detection and face recognition. In this paper, a face recognition approach based on the SVM classifier with the nearest neighbor classifier (NNC) is proposed. The principal component analysis (PCA) is used to reduce the dimension and extract features. Then one-against-all stratedy is used to train the SVM classifiers. At the testing stage, we propose an al-     

Evolutionary Computation and its Application

On Mar.23,2006,a project in the Major Program of NSFC-"Evolutionary computation and its application",managed by Prof.Licheng Jiao,Prof.Lishan Kang,Prof.Zhenya He,and Prof.Tao Xie,passed its Final Qualification Process and was evaluated as Excellent.     

高铁混合垢化学清洗技术

作者研制了高铁混合垢的化学清洗配方及工艺,经生产应用收到了良好效果,除垢率及缓蚀率均超过劳动部标准和水利电力部标准.     

浅析地方公共图书馆存在的问题及对策

目前,一些地方公共图书馆落后的组织结构、管理方式以及淡薄的服务意识,已远远不能适应当前社会的需要。针对地方公共图书馆存在的问题,提出一系列改进措施,旨在使地方图书馆更好地为社会公众服务。     

步进电机细分技术在经济型数控机床中的应用

本文叙述了步进电机细分原理及微机控制系统，并将其应用于经济型数控铣床的横向进给伺服系统，有效提高了开环数控系统的定位精度。     

An Improved S-Random Interleaver Design for Turbo Code Based on Chaos Model

A new method to design interleaver based on Henon chaos model is presented. The designed interleaver is with rather random behavior. Experimental results show that the proposed S-henon interleaver make a magnitude of im provement in bit error rate （BER） performance by 0.4 dB compared with the S-random interleaver for AWGN channel respectively. The S-henon interleaver may be adapted to 3G mobile communication systems.     

影响铅同富里酸络合容量测定的因素

对内蒙古地区天然水中有机配体与铅的表观络合容量（Ｃ．Ｃ）进行了阳极溶出伏安法（ＡＳＶ）测定,并计算总条件稳定常数（Ｋ）和络合容量指数（Ｉ）;对电极的互性关系和重现性,络合平衡时间、ｐＨ等因素做了半定量讨论。