医学期刊广告经营原则与策略

医学专业期刊作为一种特殊媒体,应调整办刊思路,积极主动地开展广告经营活动.探讨医学期刊广告经营的原则与策略.     

我国专业体育教练员工作绩效四因素结构模型探析

以我国专业体育教练员为调查对象,运用访谈法、问卷调查法,数理统计法构建专业体育教练员工作绩效研究量表,并对工作绩效结构模型进行了探讨。探索性因素分析表明:专业体育教练员工作绩效结构模型由四因素构成:任务绩效、关系绩效、发展绩效和反生产绩效;通过对量表的信效度分析发现量表信效度俱佳。验证性因素分析证实:四因素模型具有最佳拟合度,再次确认了我国专业体育教练员工作绩效的四因素结构模型。     

当代教育电视面临的挑战与对策

近20年来,教育电视在我国飞速发展并广泛应用,的确解决了大规模普及科学文化知识和师资短缺问题,在实施科教兴国战略和推进教育现代化进程中发挥了相当重要的作用.然而,网络的兴起、报纸等平面媒体的发展、WTO的加入,中国教育电视将面临着前所未有的挑战,同时也迎来了新的发展机遇,本文在分析挑战和机遇的同时提出一些粗浅的对策.     

职后培训中教师所处困境解析

目前的教师职后培训具有明显的政策导向,教师个体的需要被淡化、教师在培训中的主体地位受到忽视,这使教师在培训中处于困境之中,培训成效低下.本文指出,回归教师立场、给予教师更多的参与权、改革培训方式、充分重视教师经验的个别差异,是提高职后培训有效性的关键所在.     

论银行业回归基本面

传统银行业务在现代经济中扮演着关键角色,银行吸收储户的现金和存款,将短期债务转变成抵押贷款和企业贷款。但近年来投资银行将贷款包装成复杂的金融工具出售给投资人。次贷风暴中这类高利润、高风险而根基浅薄的投资很快经不起考验。全文从金融创新过度及其影响、银行业的核心业务及流动性风险,未来银行业的经营模式角度论述银行业的回归。     

襄樊楼盘名称之我见

好的楼盘命名,不仅富有文化内涵,更应言简意赅,让听众接触到楼盘名字后,对未来生活产生美好的联想。本文以襄樊为例对地产品牌的命名作一个粗浅的探讨。     

刍议比喻在生物化学教学中的运用

生物化学是生命科学重要的基础课程,也是难教难学的科目。而在课堂教学中灵活巧妙地运用比喻,会起到事半功倍的效果。     

Applications of water sensitivity in situ remediation at saltwater-freshwater interface

Based on the laboratory experiments with the saltwater and freshwater replacing each other in the level sand column, taking the kaolin, illite, smectite, bivalent hydrargyrum ion (Hg²⁺) and phenol (C₆H₅OH) as examples, this paper studies the applications of water sensitivity in situ remediation in saltwater-freshwater transition zone. In the water sensitivity process, the release and migration of clay minerals can make the hydraulic conductivity (HC) decrease and pollutants remove. A new type of low penetrable or impenetrable purdah can be built by adding clay minerals into the sand media to replace the underground concrete impenetrable wall to prevent seawater intrusion, and a number of the heavy metals and organic pollutants in the sand media can be removed by in situ remediation. The results show that the content of kaolin and illite influences the water sensitivity process slightly, and HC of the sand columns descends from 0.011 cm/s to 0.001 4 cm/s and 0.001 2 cm/s respectively even if the content reaches 12% (weight ratio, sic passim). However, for smectite, HC descends sharply to about 1×10⁻⁸ cm/s when its content reaches 4%, and no water can flow through the sand columns beyond 5%. The particle release and migration processes can remove the Hg²⁺ and C₆H₅OH out of the sand columns efficiently, the removing rate of Hg²⁺ is 31.68% when the freshwater and saltwater are filtered through the sand columns polluted by Hg²⁺, while it is 67.55% when the water sensitivity occurs. With the same method, the removing rates of C₆H₅OH under the fluid flow and water sensitivity are 55.71% and 43.43% respectively. Supported by National Natural Science Foundation of China (No. 40572142). HAN Zhiyong, born in 1976, male, Dr, associate Prof.     

Chaos analysis of discharge current based on tracking test of phenolic resin

In tracking test,discharge is a complicated process and comparative tracking index(CTI)has wide variation.To evaluate tracking resistance,the chaos analysis of discharge current is presented based on the tracking test ofphenolic resin in accordance with IEC601 12.According to the characteristics of statistical self-similarity and complexity of discharge current,the largest Lyapunov exponent is calculated,and the 2-dimensional attractor ofdischarge current is reconstructed.Moreover,the attractors of discharge current and recurrence plots of different discharge states are reconstructed.The results indicate that the chaos attractors have different characteristics in evolutionary tracks,the topological structure and grain direction of recurrence plots show significant differences.The chaos attractor can describe the tracking process,the recurrence plot can identify the tracking state clearly,while its arithmetic is simple.     

基于UML的食品台帐管理系统研究

针对传统食品市场监管中存在的问题,借助先进的信息化管理方法,提出B／S与C／S混合模式的食品台帐监管方案,利用UML对系统进行分析和建模,并基于ASP．NET技术及ADO．NET数据库访问技术对系统进行了开发实现。完成的系统目前已投入使用。