Preparation of Ultrafine γ-Al_2O_3 Particles in Non-ionic Water in Oil Microemulsions

1IntroductionThesynthesisofultrafineparticles(UFPs)isofincreasingscientificandtechnicalinterest.Thesmallsizeofthesepal-tidesendowsthemwithunusualstlvctural,electronic,optical,magneticandchemicalproperties,leadingtomanyimportalapplicationssuchascatalysts,e…     

按人力资本分配是按劳分配的当代形式

按劳分配是社会主义的重要经济特征,但我国目前并不具备实行经典按劳分配的条件,也无法完全满足按劳分配的内在要求。按劳分配作为按生产要素分配的高级形态,在不同的发展阶段具有不同的表现形式。按人力资本分配既体现了按劳分配的内在要求,又与现实经济条件相适应,因而成为按劳分配的当代形式。     

Preparation of ultrafine γ-Al2O3 particles in non-ionic water in oil microemulsions

Ultrafine γ-Al₂O₃ particles are synthesized in Triton X-100/n-hexanol/cyclohexane/water water in oil(w/o) microemulsion by mixing two separately prepared microemulsions containing Al(NO)₃ and (NH₄)₂CO₃ respectively. The ultrafine Al₂O₃ particles are characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD) and their size and distribution are measured. The effects of water, surfactant and reactant concentrations on the particle size and distribution are studied. The results show that the particle size and distribution can be changed by varying the preparation conditions, and the size of the microemulsion droplets has a controlling effect on the size of the particles. A possible mechanism of ultrafine particles (UFPs) prepared by microemulsions is proposed.     

生的沉思及死的默想

生与死是辩证统一的，但人们往往出于生的渴求而畏惧着死，或由生而畏死，或因死而贪生，生活在死亡恐惧的阴影之中。只有当人们舞场脱死亡恐惧，直面死本身，从而向死而生时，才能真正领悟生的意义和死的价值。     

CBA联赛东、西部观众特征的比较分析

研究篮球观众的特点及看球动机、行为等，有助于俱乐部进行市场细分和目标市场的选择。通过调查，比较分析了东、西部篮球观众的性别特点、年龄特征、职业特征、化程度、收入情况、对票价的可接受程度、观看比赛动机，旨在为东、西部篮球俱乐部在进行市场开发方面提供建议和参考。     

解放思想要牢固树立四种观念

“解放思想”一词是邓小平理论中的专用术语,其中蕴含着破与立的辩证关系。解放思想必须破除知足常乐、不思进取、安于现状的陈腐观念和传统的价值取向,坚持以经济建设为中心,强化锐意进取的开拓意识,树立正确的利益观;解放思想必须纠正或左或右、宁左勿右的思维倾向,坚持实事求是,树立正确的实践观;解放思想必须破除迷信,反对盲目崇拜权威,坚持群众路线,树立正确的权威观;解放思想必须防止“西化”、“分化”,坚持党的四项基本原则和江泽民同志“三个代表”的重要思想,树立正确的是非观。     

走向“理解”的教学理论——哲学解释学视角下的教学论写作观反思

教学活动的开展需要科学理论的指导已成为当前教育界的共识。然而,在教育教学实践中,对于教师如何学习掌握并熟练运用教学理论始终是一个长期以来一直困扰着一线教师,特别是从事教学论研究的理论工作者的问题。从哲学解释学的视角看,教学理论与教学实践存在鸿沟,即立场上不对称,内容上不照应,逻辑上不匹配。当前,我们从教学理论写作的原始冲动、语言定位、价值归属三方面确立新型的教学论写作观,为教学理论指导教学实践活动的顺利开展提供方向牵引与方法论指导。     

云计算架构下的信息化高校网站群建设

介绍了信息化高校网站群的发展趋势,探讨了如何形成IaaS、PaaS、SaaS环境并搭建云计算平台,阐述了在云计算架构下建设信息化校园网站群系统,设计了公有云、私有云环境来保障系统的安全。在此基础上结合高校自身特点,从建设、管理、应用方面详细分析了在云架构下基于RBAC策略访问控制网站群系统的方法,说明了其他安全性策略,以更好地解决云计算架构下信息化高校网站群系统的安全性问题。     

对中国入世高新技术产业二次创业的思考

加入WTO后，中国的高新技术产业迎来了二次创业的挑战，如何完成二次创业的蜕变，推进高新产业的可持续发展已成为当今社会的研究热点。本文在总结我国高新技术产业发展经验的基础上，重点分析了中国入世后二次创业面临的挑战及其发展机遇，并依据具体国情提出对策。     

New reality in university-industry relations: A search for foundations and forms

This paper examines changes in the economic environment effected by the increasing role of knowledge and technological innovations. The university and its academe are expected, for a variety of reasons, to participate in fostering the process of technological development and increased up-grading of the workforce. The author then analyzes various institutional forms which can facilitate university-industry co-operation. Based on the analyses of trends and organizational premises of enhanced university-industry co-operation, the paper draws attention to the potentially negative implications of excessive entrepreneurial participation of the academe in commercialization of academic work. It also suggests measures—ethical and organizational—which would allow us to avoid such situations and which would put university-industry relations on new foundations.