ARGG采用MIP工艺降低烯烃含量

介绍了MIP工艺,ARGG装置采用MIP工艺进行改造,以降低烯烃含量及能耗。改造后,轻油收率为59.20%,较改造前的56.72%增加了近1.5个百分点;总液收为84.37%,较改造前的83.33%增加了近1个百分点。装置能耗较改造前的69.4kgEO/t降低了5个单位。     

PBL在网络环境中的应用探讨

PBL目前越来越多地被许多教育和培训领域所采用和重视。它是以信息加工心理学和认识心理学为基础,是建构主义教学改革设想当中的"一条被广泛采用的核心思路"。它强调的是把学习设置到复杂的、有意义的问题情景中,通过让学习者合作解决真实性问题,来学习隐含与问题背后的科学知识,形成解决问题的一种学习模式。     

工民建施工过程中的造价控制探究

随着我国市场经济体制的改革与发展,造价控制已经成为建筑工程施工中的一项重要内容,对工民建施工过程中进行造价控制,是顺利完成施工的前提和保证。本文就工民建施工过程中的造价控制进行浅析,使工程项目能够达到预期的目的。     

关于加速长春市循环经济发展的现实思考

发展循环经济是实施可持续发展战略的最重要和最现实的选择.目前,长春市发展循环经济还处在探索和起步阶段,在取得明显成效的同时,也存在一些需要亟待解决的困难和问题.长春市在"十一五"乃至更长时期,加速发展循环经济的意义重大而深远.今后,加速长春市循环经济发展需要关注以下几个方面:思想认识上应高度重视,规划纲要出台要及时,经验推广操作应科学,技术资金支持要倾斜,政府政策管理落实要到位.     

Assessing the role of components of life satisfaction

Factors affecting subjective well-being and their gross effect measurement have been widely studied. However, how people derive utility from these factors has not been fully explored. This article provides a way to decompose the gross effect of major determinants on life satisfaction into direct and indirect effects and make inference for the latter. Because the indirect effect is nonlinear in parameters associated with different models in an equation system, it creates a problem in estimating the standard error. Besides, the categorical nature in survey data further introduces bias to the covariance estimation even asymptotically. To address these issues without knowing the form of heteroskedasticity under the null hypothesis, we propose to extend the wild bootstrap procedure in this particular context. Its robustness against various data properties is validated via several simulation experiments. Using three recent waves of World Values Survey, we find that the relative importance of life control has significantly increased recently, and endowing citizens with the right to enjoy their freedoms and liberties is a more effective policy in raising life satisfaction than promoting national income.     

面料二次设计方法在礼服中的应用研究

叙述了面料二次设计的概念及其分类,分析了礼服设计中面料二次设计的表现技法,阐述了面料二次设计对礼服设计的影响,为服装设计师提供礼服设计的新思路。     

Factors influencing the uptake of a mechatronics curriculum initiative in five Australian secondary schools

While the ready-made Lego™ Robotics kits are popular in schools and are used by students at both primary and secondary year levels, using the Picaxe microcontroller (chip) to create simple electronic devices, including robotic devices is less popular. The latter imposes an additional challenge as a result of the need to construct the universal board with the chip in it—a challenge embraced in the cross-disciplinary mechatronics program in this study. This paper reports on how teachers from five Australian secondary schools put into practice technological pedagogical content knowledge (TPCK) developed from expert-led workshops and explores factors (intrinsic and extrinsic) that influenced the implementation. The results show that different strategies were adopted by the schools in implementing the programs. While teacher attitude played an important role in influencing the program’s success, being able to identify where the program sits within the curriculum and planning around timetable and facility constraints were also important factors to consider. The research indicated that teachers’ TPCK was most challenged in non-obvious areas such as diagnosing where faulty soldering joints were.     

依赖虚拟经济还是实体经济——中美核心经济与核心需求的比较

美国的核心经济为虚拟经济,所以其救市政策的关键在于能否恢复美国的虚拟经济功能;中国的核心经济为实体经济,政府在其中具有重大作用,以政府为主导的扩大内需政策能够迅速带领中国经济走出困境.     

国外中小企业融资经验对我国的启示

经历上百年私有化进程,西方国家已形成了成熟的中小企业融资经验;上世纪50年代以来,亚太地区一些国家经济快速发展,也积累了丰富的中小企业发展经验。中小企业作为我国经济发展的主体,发展中面临诸多困难。因此,我们有必要借鉴国外的融资经验。     

我国反垄断的实施机制、模式及其改革构想

我国现阶段反垄断实施机制为反垄断委员会+反垄断执法机构的双层架构模式,这是在借鉴国外反垄断的实施经验与模式、综合考虑我国行政机构与决策的现状以及符合我国现实国情的基础上的明智选择。但是这种实施机制与模式仍然存在一定缺陷,如反垄断执法依据的完善与衔接、反垄断机构之间的协调与配合以及它们各自的能力建设。强化与改善反垄断的实施机制将有力地健全我国的社会主义市场经济体制。