汉语双字词常模特征跨词性对比研究

汉语中不同词性词有不同常模特征规律。名词的具体性、意象性、语义透明度最高，但笔画数最少；动词的词频最高、习得年龄最晚,但感官经验度最低；形容词的熟悉性、主观词频和情感经验度最高，但具体性最低。同时，具体性、意象性和感官经验度之间的相互关联只存在于名词和形容词中。13个常模特征可以归为频率、语义、视觉复杂性和词义数四个公共因子，但各因子所主要代表的变量情况在不同词性词之间有相似，亦有不同。另外，动词和形容词之间的相似性高于它们分别与名词之间的相似性程度，习得年龄、情感经验度、意象性和主观词义数最能把名词与另外两种词性区分开来。     

分段启动压力对宝浪油田驱动压差的影响

摘要：渗透率低于 10 mD 的特低渗储层与平均渗透率大于 20 mD 的低渗储层开发技术政策界限和开发方案制定等有很大的差别，渗透率越低，其启动压力成倍增加，这就影响了开发技术和方案的制定。应用分段启动压力梯度进行分段计算并进行对比，计算结果表明：用同一启动压力梯度计算的结果不符合实际情况，而应用分段启动压力梯度计算的结果更能很好地反映特低渗储层的实际情况；井距对较高渗透率的驱动压力计算影响并不大，但对于特低渗储层的驱动压力计算则影响很大。     

A New Feature Selection Method for Text Categorization of Customer Reviews

With the rapid development of e-commerce, online consumer review plays an increasingly important role in consumers’ purchase decisions. Most research papers use the quantitative measures of consumer reviews for statistical analysis. Here we focus on analyzing the texts of customer reviews with text mining tools. We propose a new feature selection method called maximizing the difference. Various classification methods such as boosting, random forest and SVM are used to test the performance of the new method along with different evaluation criteria. Both simulation and empirical results show that it improves the effectiveness of the classifier over the existing methods.     

三次党内集中学习教育活动的回顾与思考(英文)

21世纪以来,中国共产党相继开展了农村三个代表重要思想学习教育活动,以实践三个代表重要思想为主要内容的保持党员先进性教育活动和深入学习实践科学发展观活动。通过这三次活动,广大党员、干部受到深刻的马克思主义教育,进一步增强了对三个代表重要思想的认识。这三次活动对于在新的历史起点上推进党的建设的伟大工程,具有十分重要的启示意义。     

Contents of heavy metals in arable soils and birth defect risks in Shanxi, China: a small area level geographic study

The burgeoning demands of China’s urbanization and industrial development put pressure on the resources of the entire country and have direct and indirect effects on the health of individuals, at times in areas far removed from cities themselves. Current evidence suggests that heavy metal pollution in soil, a common by-product of coal mining and other industrial activities, may be linked to risk of birth defects. We examine this hypothesis using small area level data including soil samples and detailed birth records from 2002 to 2004 from 97 villages in Shanxi province, a heavy coal-mining region. We find that soils containing arsenic, lead, and nickel are significantly correlated with the incidence of birth defects. In particular, we find a strong positive dose-dependent association of birth defects with lead, a moderate positive effect with arsenic, and a dose-dependent negative association with nickel. These results are consistent with the postulated link between arsenic and lead and human birth defects, but raise questions about the effects of nickel in this context. China’s rapid urbanization underscores the need for closer attention to the relationship between the health and the environment.     

Optimal RSUs deployment with delay bound along highways in VANET

In order to broadcast an alert message from the accident site to the control center as soon as possible, the roadside units (RSUs) act as the critical component in vehicular ad hoc networks (VANETs). It is not possible to make a pervasive RSU deployment due to the huge cost and market requirement. Hence, how to deploy a minimum number of RSUs in a given region becomes a challenge problem. In this paper, we present an analysis for the total delay of broadcasting alert messages in VANETs along highways. Based on the analysis, the relationship between optimal number of RSUs with the highway distance is given. Moreover, the experiment results verifies the delay analysis and the optimization of RSUs deployment.     

关于三分Cantor集的结构的一些新结论

旨在采用代数的方法来研究三分Cantor集的结构特点。主要结果除了给出三分Cantor集的代数构造外还定义了仿四进位；结合代数构造、拓扑构造以及仿四进位分别给出并证明了三分Cantor集及其余集的结构公式，从而改进了已有的结论。     

西部开发与民族文物干部的培养

在西部开发过程中 ,要保护民族文物 ,离不开民族文物干部。举办民族文物培训班 ,是培养民族文物干部的捷径。     

自治区自治条例研究

民族自治地方自治机关拥有法律规定的立法权。自治机关的立法权主要是制定和变动自治条例和单行条例的权力,自治条例是民族自治地方立法机关和政府行使自治权力的法律标志。自治机关制定自治条例是全面实施民族区域自治制度的需要,是自治机关行使自治权的根本体现。由于多方面原因,到目前为止我国5个自治区无一出台自治区自治条例。制定和出台自治区自治条例必须严格遵循法律规范、法定原则和法定程序,新修改的《民族区域自治法》和西部大开发战略的实施是促成自治区自治条例尽快出台的契机。     

WTO规则与解决中国"三农"问题的政策措施

市场经济发达国家实行的农业保护政策可资借鉴。必须在WTO框架下对我国农业实行保护措施 ,构造农业保障体系 ,坚持可持续发展战略。政府必须采取坚硬的政策措施增加农民收入 ,采取切实的政策措施促进农产品出口加工业发展 ,采取鼓励性政策措施扩大农产品出口 ,采取相关的政策措施促进农业信息化建设