建筑实践中的材料选择

文章的重点是讨论在具体的建筑实践中材料与建筑的本质性关联,亦即与设计的意图和特征、与建筑的发生密切相关的内容。在多数实践中,设计围绕核心意图展开,在意图的指引下选择对应的材料,形成特定的特征而达到预设的目标;而另外一些实践,则是因既定材料而引发设计,甚至发展出具有持续性的工作和研究方向,如"砌筑"和"组配";材料与空间、结构、形式的同一性也成为近年来特定类型建筑实践中的某种既定追求。     

A bill of materials-based approach for end-of-life decision making in design for the environment

Re-use, recycling or remanufacturing of products and components are good alternatives for reducing the environmental problems resulting from the huge amounts of waste currently arriving at landfills. A new approach is proposed in this paper for enhancing these alternatives from the earliest stages of product design. Given the product structure (obtained from its bill of materials (BOM)) and the joining and geometrical relationships among the components (obtained from the three-dimensional, computer-aided design representation), a model is proposed that will determine the EOL (EOL) strategy, i.e. the depth of disassembly inside the structure and the final end (re-use, recycle, remanufacture or disposal) for each disassembled part leading to the highest profit. A scatter search (SS) metaheuristic is used to determine the disassembly cost at each level of the BOM. The model presents a number of major improvements with respect to previous research. It addresses the problems of simultaneously determining both the best EOL strategy and the disassembly sequence, as well as allowing removal of components not only over the two or three Cartesian axes and affording the possibility of modifying the encountered strategy in a further step so as to fulfil other business criteria (such as disassembly time, resources availability or maximum waste generation rate).     

信息化预拼装在钢结构成品检验中的应用

我国的钢结构随着建筑业的高速发展应用领域也得到不断地扩大,复杂钢构件的成品检验成为了工程技术中的瓶颈。本文结合上海中心大厦项目的第三道环带桁架钢构件的信息化预拼装的操作过程,论述了综合利用三维建模软件对复杂空间杆件放样定位优势,以及全站仪精密测量空间坐标的特点,有效地解决复杂钢构件的检测难题,提高复杂钢构件制作精度,保障现场安装顺利进行。     

YX3高效三相异步电动机的研制

依据用户要求和行业发展指导意见，从电磁设计、工艺创新和结构改进等方面较全面地阐述了YX3高效率三相异步电动机的设计。样机通过了国家防爆电气产品质量监督检测中心的性能检测，取得了中国节能认证证书，通过了中国能效中心能效等级2级的备案，获得了河南省科技成果奖。     

基于社会资本视角的技术联盟稳定性研究

从社会资本的3个维度即结构维度、关系维度、认知维度分析了不同维度的社会资本对技术联盟稳定性的影响,探讨了提高技术联盟稳定的社会资本条件。     

薄壁包装盒底注塑模具设计

薄壁塑件的应用主要是节约材料,其模具设计与通常成型模具有着不同要求.包装盒壁厚仅有1.0mm,就盒底模具设计中结构设计、浇注、冷却、排气和脱模等部分进行了分析,并将设计方案作了详细的阐述.模具经过实践证明:结构合理,产品无变形等缺陷,受到用户的认同.     

总量控制下的煤炭消费、生产与转换指标交易制度

在计划控制煤炭消费、生产与转换总量,并分配指标的框架下,建立煤炭消费、生产与转换指标交易的煤票制度;融合煤炭消费环节、煤炭生产环节与煤炭转换环节的、市场各自独立的煤票制度,建立涵盖消费、生产、转换三个环节的、统一的煤票交易市场;融合碳排放总量控制制度,建立与之融通的煤票制度体系;切实控制并降低煤炭消费、生产与转换总量.     

A systematic approach for coupling user satisfaction with product design

A fundamental assumption in this paper is that user satisfaction depends on product design. The approach consists of 5 steps: (1) define user satisfaction, (2) decompose product design elements, (3) conduct experiments, (4) develop relationship models, and (5) analyse critical design features. In order to demonstrate the practicability of this approach, relationship models were developed based on experimental data using a total of 60 subjects (30 American and 30 Korean subjects). In addition, critical design features and their common properties were identified for audio/visual consumer products. Similarities and differences between American and Korean consumers were discussed. The resulting relationship models can be used to predict user satisfaction and provide significant remedies for design change.     

基于传统街区更新的城市设计

以南京市小西湖地块为例，深入探 讨城市设计在传统街区城市更新中的基础、 角色、手段及成果形式。以提高市民的生活 品质、提高容积率、保护历史地段结构和提 升公共空间品质为目标，本着社会公平立场、 城市记忆立场与城市传统街区风貌保护的立 场，通过基于历史成因的和基于整体市民利 益的两种分配方式，城市设计最终认可城市 形态动态变化的合理性、扩大居民/市民/游 人共享的公共空间、实现居民与建设主体多 方获益。     

Mitigating adjacent channel interference in vehicular communication systems

In the last few decades, dedicated wireless channels were specifically allocated to enable the development and implementation of vehicular communication systems. The two main protocol stacks, the WAVE standards proposed by the IEEE in the United States and the ETSI ITS-G5 in Europe, reserved 10 MHz wide channels in the 5.9 GHz spectrum band. Despite the exclusive use of these frequencies for vehicular communication purposes, there are still cross channel interference problems that have been widely reported in the literature. In order to mitigate these issues, this paper presents the design of a two-stage FIR low-pass filter, targeting the integration with a digital baseband receiver chain of a custom vehicular communications platform. The filter was tested, evaluated and optimized, with the simulation results proving the effectiveness of the proposed method and the low delay introduced in the overall operation of the receiver chain.