六氟丙酮的合成及应用

简要介绍了六氟丙酮的性质及应用情况,并对其主要合成工艺进行了述评.     

On seeking first to understand

There are fundamental differences between seeking-to-solve and seeking-to-understand. We are strongly biased toward seeking-to-solve on a number of dimensions. As a result, we are increasingly at risk in a world that is becoming increasingly complex and fast paced. We therefore need to understand these biases so that we can defend ourselves -- we need to develop (moral) concepts and methods of inquiry that transcend our dominant and pervasive analytical presuppositions.     

Knowledge Synthesis and Innovative Logistics Processes: Enhancing Operational Flexibility and Performance

Research results are presented providing an empirical examination of the impact of knowledge synthesis and innovative logistics processes on operational flexibility. The research is theoretically grounded in the resource‐based view of the firm, augmented with the knowledge‐based view. Knowledge synthesis and innovative logistics processes are proposed as key resources in the development of an important logistics capability: operational flexibility. A structural model analysis of survey data collected from logistics executives supports the proposed relationships and indicates that innovative logistics processes can lead to greater operational flexibility. Operational flexibility is also shown to lead to higher levels of logistics performance.     

小波函数的电路合成方法

针对国内对小波的研究主要集中在算法和应用方面,小波的电路实现方法研究还鲜见的现状,提出了一种小波函数的电路实现方法。小波函数使用反曲型母小波模拟,电路由双极型晶体管、可控放大器和线性无源电子元件等组成。根据小波分解的多分辨率近似特性,有限能量多变量函数能使用这个模拟电路近似表示,结合实例,PSpice仿真实验表明,小波函数的电路合成方法是有效、可靠的。     

装备采购项目效益评价模型研究

随着政府采购制度的逐步推进和装备采购制度改革的深入,怎样对装备采购项目的效益进行评价一直是难以解决的问题。论文拟对装备采购效益建立评价指标,进而建立模糊综合评价模型,试图为评价装备采购效益提供一个新的方法。     

浆态床一步法二甲醚产业化技术突破与进展

介绍了清华大学与重庆英力燃化有限公司合作开发的燃料级二甲醚合成中试研发进展。采用新型循环浆态床反应器一步法合成二甲醚技术取得了实质性突破，并获得了良好的中试结果：CO单程转化率达到60％以上，DME选择性达到94％，明显优于APCI和NKK的浆态床二甲醚合成工艺。     

试论技术创新的综合评价体系

技术创新是现代企业发展和企业竞争中最关键的问题,技术创新评价直接决定着技术创新投资方案的可行性。全面衡量技术创新对企业的潜在影响,对技术创新成本与效益、动态项目评价方法以及技术创新动态项目评价的分析,是正确评价技术创新投资方案的必要前提。     

煤间接液化技术现状及其经济性分析

煤间接液化技术比较成熟并已得到大规模商业化运营。介绍了煤间接液化技术发展历程，详细论述了Sasol、Mobil MTG、Shell SMDS三种典型间接液化工艺，概述了反应器研究进展，对煤间接液化的技术经济性进行了分析，提出了我国煤间接液化技术发展建议。     

聚磷腈化合物的应用研究

本文介绍了聚磷腈化合物的一些基本特性、应用和几种聚磷腈化合物的合成。     

CLT酸工业现状与发展

本文介绍了CLT酸的合成工艺、国内生产、市场和技术进展情况，提出了我国CLT酸生产业存在的主要问题，并对其发展提出了建议。