Exploration Deep Into the Artistic Realm of Peace——He Yu’s Oil Paintings

The basic intention of realism oil painting is to present as closely as possible the original form of each object without bias or personal opinion, using pictorial simulation techniques such as points, lines,zones and colors.In order to reproduce the object’s original form or to simulate it as faithfully as he can,the     

教育短期行为与青少年社会化

在分析教育短期行为及其表现的基础上,论述了教育短期行为对青少年社会化的影响,并从学生品格养成、师资队伍建设、教育经费投入、教育结构调整等角度提出了解决教育短期行为的相关对策。     

Inference for Time Series Regression Models With Weakly Dependent and Heteroscedastic Errors

Motivated by the need to assess the significance of the trend in some macroeconomic series, this article considers inference of a parameter in parametric trend functions when the errors exhibit certain degrees of nonstationarity with changing unconditional variances. We adopt the recently developed self-normalized approach to avoid the difficulty involved in the estimation of the asymptotic variance of the ordinary least-square estimator. The limiting distribution of the self-normalized quantity is nonpivotal but can be consistently approximated by using the wild bootstrap, which is not consistent in general without studentization. Numerical simulation demonstrates favorable coverage properties of the proposed method in comparison with alternative ones. The U.S. nominal wages series is analyzed to illustrate the finite sample performance. Some technical details are included in the online supplemental material.     

Parallel tempering for dynamic generalized linear models

ABSTRACT

Markov chain Monte Carlo (MCMC) methods can be used for statistical inference. The methods are time-consuming due to time-vary. To resolve these problems, parallel tempering (PT), as a parallel MCMC method, is tried, for dynamic generalized linear models (DGLMs), as well as the several optimal properties of our proposed method. In PT, two or more samples are drawn at the same time, and samples can exchange information with each other. We also present some simulations of the DGLMs in the case and provide two applications of Poisson-type DGLMs in financial research.     

沉痛的代价历史的警示--从苏联解体看社会主义发展历史进程的经验教训

人类历史上第一个社会主义国家苏联的解体有其复杂的的缘由.其中既有历史原因、现实原因,也有外部原因.以马克思主义的阶级和阶级分析的方法来研究苏联解体这一现象,对今天如何认识和坚持社会主义提供了诸多警示.     

邓小平的科技观新论

邓小平关于科学技术的理论是邓小平建设有中国特色的社会主义理论的重要组成部分 ,也是马克思列宁主义、毛泽东思想理论宝库的重要组成部分。它主要包括科技与生产力、科技与人才、科技与教育及科技与科技开放等基本思想 ,它是推动我国科技进步和经济发展的理论基础。     

城市大气中污染物扩散的施密特数研究

借助反问题方法对风洞实验工况选取不同施密特数进行数值模拟试验,分析比较了不同施密特数时街道峡谷内各个观测点的数值模拟数据和风洞实验数据.研究结果表明,城市街道内大气污染物扩散的施密特数为0.7～0.8.     

试析决定海运服务企业成果的因素

在新贸易保护主义思潮的影响下,国际海运业的竞争日趋激烈,海运服务企业也面对着激烈的国际竞争。而通过实证研究海运服务企业服务的质量、顾客满意度对海运服务企业经营成果的影响,结果发现,海运服务企业投资越大,获得的信任度就越高;往来企业之间的信任度越高,满意度就越高;海运服务业之间的信任度和满意度越高,其经营成果就越好。因此,海运服务企业必须不断提高顾客的信任度和满意度,以此来提高企业的经营成果。