TFT-LCD技术的研究进展与发展趋势

介绍了近年来世界ＴＦＴ ＬＣＤ技术的研究现状,论述了未来ＴＦＴ ＬＣＤ技术的发展趋势     

磁悬浮转子真空计的研究历程

磁悬浮转子真空计被广泛应用于各个领域,在10^-4-1 Pa下具有相当高的精确度,以其优越的性能在其中占有重要地位,被广泛用于传递标准。然而,残余阻尼的存在严重影响了磁悬浮转子真空计的下限扩展,其中以涡流效应的影响最为显著,相对于涡流效应,测量产生的弛豫效应和科里奥利效应可以忽略不计。本文简要介绍了磁悬浮转子真空计的结构和原理,概述了其研究历程,重点阐述了残余阻尼和切向动量传递系数的相关研究,并分析并总结了一些重要因素对它们的影响。残余阻尼的相关研究主要从涡流效应、温度效应、弛豫效应、科里奥利效应和振动这几个方面进行了介绍;在切向动量传递系数方面上,主要说明了气体种类和压力对它的影响。最后提出了一些改进猜想及后续工作的研究方向。     

"适可而止"--"集合设计"在浙大网新科技园上的设计策略

“适可而止”是一种态度。文章用这个词归纳并品评了“集合设计”在浙大网新科技园项目上的设计策略。实际上,这种态度不仅体现在本项目的操作上,也反映在大部分中国建筑师目前时常面临的选择当中——关键是态度的指向能否逐渐形成更多积极性的策略。文章希望在追求“单纯性”、设计实验、细节控制和如何介入城市空间等方面的讨论能引导更多的读者有意识地用批判的眼光反观和印证自己的设计实践。     

Educational technology research trends in Turkey from 1990 to 2011

The purpose of this study is to examine the characteristics, methodologies, and general trends in Educational Technology articles, written by authors from Turkey, published in journals listed in the SSCI, SCI, and ERIC indexes from 1990 to 2011. A total of 1151 (SSCI:813, SCI:38, ERIC:300) articles published in 94 journals were examined via content analysis, using the ‘Educational Technology Papers Classification Form’ (ETPCF). The results show that the number of published Educational Technology studies dramatically increased in the years 2002 and 2007. “Educational environments and technology”, “distance education” and “multimedia” were the predominant subjects of the articles, though there were variations in terms of research topics and methodologies. Regarding research methodologies, quantitative studies were the most common type. Questionnaires and interviews were most commonly used as data collection tools, and the convenience sampling method was also widely used. The frequently studied sample participants were preservice teachers and other undergraduate students. In the present study, cross tabulation is used to present the findings.     

Artificial intelligence and other approaches to speech understanding: reflections on methodology

This paper characterizes the methodology of Artificial Intelligence (AI) by looking at research in speech understanding, a field where AI approaches contrast starkly with the alternatives, particularly engineering approaches. Four values of AI stand out as influential: ambitious goals, introspective plausibility, computational elegance, and wide significance. The paper also discusses the utility and larger significance of these values.     

The ECHORD project proposals analysis – Research profiles,collaboration patterns and research topic trends

This paper investigates the research profiles, collaboration patterns and research topic trends which can be identified in the proposals submitted to the ECHORD (European Clearing House for Open Robotics Development) FP7 project. On a country level, clusters were identified and characterized by patterns of proposal production per inhabitant, score and international cooperation. Belgium and Sweden constitute a cluster characterized by high proposal production, with very high scores and extensive international collaboration. Belgium also excels from another cluster analysis, being as the only country where 100% of proposals involve industry–academia cooperation and obtain scores above 10. Other findings show that single partner proposals have significantly lower quality than multi-partner proposals but, on the other hand, the number of countries involved shows no influence on the quality of the proposals. Despite the high number of industrial participants present on the proposals, it is observed that they play secondary roles in the proposals, with a very low number projects leaded by companies. Also, it is observed that partnerships between research institutions (non-universities) are the most successful. Concerning topics of the proposals, the technology human–robot interface and the product vision robot for small-scale manufacturing are the most significant. Finally, the paper shows clusters of institutions extracted from the giant network of relations obtained from the ECHORD set of proposals.     

Theoretical and empirical approaches to quantitatively valuing research

Abstract

This article provides historical narratives describing approaches to studying, managing, and quantitatively valuing research; methods used by industry, particularly the pharmaceutical industry and approaches taken by economists, including government economists using the Leontief Input–Output framework. The article documents the persistent belief that research expenditures generate future economic value along with the equally persistent frustrations of attempting to measure such value, particularly for basic research. The article then discusses the results of applying the Leontief method to Association of University Technology Manager (AUTM) data. Strengths and weaknesses of these approaches are noted. Additional studies and calls for data capture are suggested and the potential benefits of such efforts are described.     

Coastal trapped waves in the southern Caspian Sea

Previous studies reported coastal trapped waves (CTWs) in the Caspian Sea (CS). This study deals with the generation mechanisms, the temporal and spatial variability of CTWs in this area, and their transformations during propagation from the origin to the destination using recent measurements and high-resolution numerical simulations. CTWs are observed at all stations with periods of 2–6 days after northerly storms. The Absheron Peninsula, old Sefidrud delta, and Nur coasts were identified as the CTWs prone regions. The generation of CTWs in these locations was confirmed using numerical experiments. The propagation away from the generating location of CTWs was analyzed using a representative real wind storm. In the west part of the CS, the generation mechanism of CTWs is mainly similar to the barotropic Kelvin waves; in contrast, it is similar to the continental shelf waves in the southern shelves. The results can be used to study the contribution of generated CTWs to the transport of sediment and biological materials in all large lakes.     

配电线路在线故障识别与诊断

最近几年我国经济发展速度加快,国民用电需求急剧增加,国家电力事业压力呈上升趋势。而在整个电力系统中,配电线路将发电厂与终端用户紧密联系起来,在其中发挥着重要的作用。由于现在终端用户越来越多,供电系统的压力增大,外界的各种干扰因素导致电力系统会发生电路故障,从而影响用户的正常使用。所以配电线路的质量直接关系到供电质量和供电可靠性,同时影响国家电网系统正常为用户提供电。所以必须重视配电线路质量问题,本文对配电线路故障识别与诊断进行初步分析,希望对国家电网运行安全有所帮助。     

Upgrading Computational Design

Shajay Bhooshan heads up the computation and design ZHACODE group at Zaha Hadid Architects (ZHA) and is a course master at the Architectural Association Design Research Laboratory (AADRL). Here he argues that Parametricism 2.0 has a vital role to play in the progressing of computational design. Assimilating the exploratory developments of the last 15 years, he asserts how the next phase of Parametricism will enable a further consolidation and evolution of digital practices.