开展名言激励活动

为了提高学生的综合素质,特别是流畅、自如、灵活的语言表达能力;同时也为了陶冶学生的情操,不断提高学生的思想道德修养,我校在班级学生中开展名言激励教育活动.     

Beyond Journal Impact and Usage Statistics: Using Citation Analysis for Collection Development

This article outlines a methodology to generate a list of local core journal titles by doing a citation analysis and details the process for retrieving and downloading data from Scopus. It analyzes correlations among citation count, journal rankings, and journal usage. The results of this study reveal significant correlations between journal rankings and journal usage. No correlation with citation count has been found. Limitations and implications for collection development and outreach are also discussed.     

贺州市土瑶七年级学生实施英语任务型教学的设想

本文以科研项目形式,对贺州市土瑶七年级学生的英语学习基本情况和研究意义等进行分析,并在研究方法和具体操作两方面提出了在土瑶学生中实施英语任务型教学的设想,以探索出培养、提高土瑶中、小学生,乃至其他少数民族和边远山区的汉族中、小学生英语能力的有效途径。     

武术俱乐部视域下武德对学生传统美德的寓理教育

采用文献资料法、访谈调研法、实践教学法、逻辑分析法等方法,探讨中华武德对学生传统美德的教育作用。结果表明:中华武德的核心观念是仁、义、礼、智、信、勇,蕴含着仁慈、爱国、爱民、重义、守礼、和谐、谦让、中正、诚实、守信、忠勇、报国等传统美德,通过校内外武术俱乐部进行中华武德交流,对学生的传统美德修养具有良好的寓理教育作用,能促进学生美德修养的自我养成。     

浅圆仓侧压力分析

Rankine理论和Coulomb理论均不适合用于浅圆仓的侧压力计算. 基于此, 本文研究了浅圆仓散料侧压力的实际分布规律及计算方法. 根据极限平衡理论, 首先得到散粒体作用在单位周长的仓壁上的合压力, 然后通过严格的数学推导, 得到浅圆仓侧压力的分布规律. 结果表明, 本文结果与实仓试验结果相符, 说明本文公式不论对平堆还是锥堆都比较适合, 而Rankine理论和Coulomb理论用于浅圆仓均有缺陷.     

A channel distortion model for video over lossy packet networks

Error-resilient video communication over lossy packet networks is often designed and operated based on models for the effect of losses on the reconstructed video quality. This paper analyzes the channel distortion for video over lossy packet networks and proposes a new model that, compared to previous models, more accurately estimates the expected mean-squared error distortion for different packet loss patterns by accounting for inter-frame error propagation and the correlation between error frames. The accuracy of the proposed model is validated with JVT/H.264 encoded standard test sequences and previous frame concealment, where the proposed model provides an obvious accuracy gain over previous models.     

氢化丁腈橡胶的应用与研究进展

本文评述了氢化丁腈橡胶（HNBR）的应用及进展，指出了我国发展氢化丁睛橡胶的潜力。     

教学仪器订购系统设计

介绍了一种为中小学校进行教学仪器、器材、设备的订购、配备及管理的计算机管理软件系统，对其主要功能、数据库表、操作性能、用户界面、编程方法等作了扼要说明。     

俄罗斯中等职业教育的现状及发展趋势

俄罗斯中等职业教育是国家教育体系中一个重要的组成部分。中等专业学校是国家经济发展中普通技术人才的主要培养基地，20世纪90年代，中等职业教育经历了重大变革，近些年来有了稳步的发展。分析、研究俄罗斯中等职业教育的现状，并在此基础上预测俄罗斯中等职业教育的发展趋势，对我国中等职业教育的发展将有一定的启示和借鉴。     

Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system

Computational Fluid Dynamics (CFD) simulations of cavitating flow through water hydraulic poppet valves were performed using advanced RNGk-epsilon turbulence model. The flow was turbulent, incompressible and unsteady, for Reynolds numbers greater than 43000. The working fluid was water, and the structure of the valve was simplified as a two dimensional axisymmetric geometrical model. Flow field visualization was numerically achieved. The effects of inlet velocity, outlet pressure, opening size as well as poppet angle on cavitation intensity in the poppet valve were numerically investigated. Experimental flow visualization was conducted to capture cavitation images near the orifice in the poppet valve with 30° poppet angle using high speed video camera. The binary cavitating flow field distribution obtained from digital processing of the original cavitation image showed a good agreement with the numerical result. Project supported by the National Natural Science Foundation of China (No. 59835160) and Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry of China (No. 50175097)