【摘 要】
：
根据今日投资《在线分析师》(www.investoday.com.cn)对国内近百家主流研究机构4000余名分析师的投资评级数据进行的统计,上周投资评级上调居前的25只股票中,所属行业趋向集
论文部分内容阅读
根据今日投资《在线分析师》(www.investoday.com.cn)对国内近百家主流研究机构4000余名分析师的投资评级数据进行的统计,上周投资评级上调居前的25只股票中,所属行业趋向集中,化工品入选四家公司、机械制造和房地产各入选三只;其余分布于证券经纪、运输基础设施、信息技术与服务、食品药品销售、商业服务、软件、汽车零配件、
According to the statistics of today’s investment “online analyst” (www.investoday.com.cn) on the investment rating data of more than 4,000 analysts from nearly 100 mainstream research institutions in China, the investment rating was upgraded last week to the top 25 stocks , The industry tends to focus, chemicals selected four companies, machinery manufacturing and real estate each selected three; the remaining distribution in the securities brokerage, transportation infrastructure, information technology and services, food and drug sales, business services, software, auto parts,
其他文献
The Aspect-Oriented Programming provides a way of modularization of crosscuting concerns in software.In recent years,many researchers have developed some AOP la
Vote Control问题是社会学中的一个重要问题,本文主要研究 K-approval规则下Vote Control问题的复杂性.在 K-approval规则下,通过对Vote Control问题结构的仔细分析,本文给出
Context-awareness becomes an increasingly important concept in the development of ubiquitous systems.Applications and services,which run in these ubiquitous env
序列结构比对是生物信息学中用来预测新生物体序列的结构和功能的一种重要方法.为了识别新序列的结构同源性,序列结构比对不但要考虑序列的相似性,还要考虑残基之间相互作用
In image restoration of spatial domain,there need to make use of the available structure of image blurring matrix,and use diagonalization or convolution to subs
To solve the problem of defects detection in ultrasonic echo signal,a denoising method based on Independent Component Analysis is proposed.Firstly,the observed
超临界二氧化碳(C02)布雷顿循环技术由于具有循环效率高、结构紧凑等优点,近年来受到了广泛关注并得到了快速发展.介绍了该技术在舰船动力、核能发电、太阳能光热发电、燃煤
为了改善咪唑啉缓蚀剂水溶性差的问题,以三聚氯氰为母体,分别引入一个长的聚醚链和两个油酸咪唑啉结构,设计合成了一种将多类有效的缓蚀基团汇聚于一个结构中的缓蚀剂2,4-二
Christian Anfinsen proposed that the native states of proteins reside in the free energy minima.This “thermodynamic hypothesis” has been widely accepted as th
In this paper,we introduce the definitions of B(o)hm-like trees and B(o)hm-trees,and give a sufficient and necessary condition for the convergence of B(o)hm-lik