On the Current Situation and Problems of High Education Institutes Digital Libraries Development

The paper discusses the necessity and objective of digital library system, and analyzes the current situation of the high education institute digital libraries in China as well as some potential problems. Development plan is proposed for the digital library system for universities.     

发达国家科技政策导向及其启示

当今世界,科技政策已成为许多国家尤其是美、日、欧等发达国家全力打造科技强国的基本的公共政策。文章从国家战略引导产业发展、国家政策促进产业发展、全力追求知识与技术创新、注重培养和吸纳优秀人才等4个方面对此进行了探析。     

物流中的新设施—自动化立体仓库

当今物流速度日益加快，仓库建设和改造向空间、立体化、自动化快速发展，建设自动化立体仓库是今后的必然趋势。结合多年实践．对物流领域成件货物储存的新设施，自动化立体仓库进行了详细阐述。     

矿渣微粉和磨细粉煤灰双掺混凝土的试验与应用

讨论了矿渣微粉和磨细粉煤灰双掺(简称FS双掺)在大体积混凝土以及高强混凝土中的试验与应用,以此体现了它们在经济上的显著效应。     

结构异质性对中国能源高质量发展的影响研究

基于结构异质性对能源高质量发展影响的理论分析,使用稀疏主成分分析方法测度中国能源高质量发展水平,构建中国和八大经济区域面板分位数回归模型,实证研究了结构异质性对中国能源高质量发展的影响。结果表明：2003—2020年中国能源高质量发展水平有所提升,但仍存在明显的区域发展不平衡问题,西部地区和北部沿海地区的能源高质量发展水平更高。产业结构与能源高质量发展水平呈负相关关系,能源消费结构、资本配置结构与能源高质量发展水平呈正相关关系。     

社会本位下的职业实用性体育教学探讨

在分析中高职院校体育教学现状的前提下,阐述了在社会本位下的职业体育教学的顺序、比重与原则,概括了职业实用性体育教学的内容,并提出了8条提升中高职院校体育教学水平的建议。     

高职院校音乐教育现状及其对策

高职音乐教育具有其独特之处,高职音乐教育应该重视以下方面:端正学与教思想;灵活教学,不拘于教材知识;重在培养学生兴趣和修养,促进音乐之外课程的学习;开展寓教于乐的活动,丰富学校生活.     

高职院校发展:定位、效能和改革

抓住机遇,发展高职教育,是国家和当地经济建设发展的需要,是完善我国教育结构的需要。高职院校的发展主要把握三点:办学定位要突出特色;内部管理要精简、效能;思维观念要改革创新。     

后疫情时期承德产业集聚对经济高质量发展效应的实证研究

随着后疫情时期的到来以及经济高质量发展的不断推进,承德产业分工受到了较大影响。增强经济“韧性”,加速产业空间集聚,成为承德后疫情时期经济战略方向的重要考量。论文通过构建VAR模型,实证研究承德产业集聚对经济高质量发展的动态效应,结果表明:产业集聚对经济高质量发展具有周期性循环往复效应,制造业与公共服务业集聚效应显著,制造业专业化集聚的贡献率最大。因此,要加大对制造业、公共服务业等产业的支持力度。     

Asymmetric ACD models: Introducing price information in ACD models

This paper proposes an asymmetric autoregressive conditional duration (ACD) model, which extends the ACD model of Engle and Russell (1998). The asymmetry consists of letting the duration process depend on the state of the price process. If the price has increased, the parameters of the ACD model can differ from what they are if the price has decreased. The model is applied to the bid-ask quotes of two stocks traded on the NYSE and the evidence in favour of asymmetry is strong. Information effects (Easley and O'Hara 1992) are also empirically relevant. As the model is a transition model for the price process, it delivers `market forecasts' of where prices are heading. A trading strategy based on the model is implemented using tick-by-tick data.While remaining responsible for any error in this paper, the authors would like to thank R. Anderson, G. Le Fol, C. Gouriéroux, J. Jasiak, W. Pohlmeier, A. Roell, O. Scaillet, S. Wei and three anonymous referees for useful remarks and suggestions on previous versions. The authors would also like to thank A. Ruttiens from KBC-CBC for useful discussions on practical issues related to trading. Support of the European Commission Human Capital and Mobility Program through the network `Econometric inference using simulation methods' is gratefully acknowledged. This paper presents research results of the Belgian Program on Interuniversity Poles of Attraction initiated by the Belgian State, Prime Minister's Office, Science Policy Programming. The scientific responsibility is assumed by the authors.