From Flood Land to New Urban Area: Water Adaptation History and Visions for Daodi Flood Land in the West of Beijing

Daodi Flood Land, located in Mentougou District of Beijing, is a relatively separate flood land in the lower reaches and on the east of Yonding River. This largest landscape character area in the west of Beijing along the river illustrates the history of human–water interaction and discloses the trends and problems of rural urbanization. Focusing on Daodi Flood Land, this paper expands the research on adaptation by introducing basic concepts and research framework, and reviews the research trends from spatial, temporal, and participant aspects. Considering the typical characters of the study area, this research employed participatory approaches, such as mapping and problem and solution trees, due to the lack of continuous and accurate data. Basing on literature review and field investigation on issues of floods, agricultural irrigation, and water resource utilization, water adaptive development visions for the study area were proposed from perspectives of landscape and culture. Finally, the paper further analyzes the structural relations between adaptation problems, natural and social systems, passive and active adaptations, and planned and unplanned adaptations, with the aim to provide reference for relevant studies and applications of adaptation approaches in other cases.     

转型时代能源安全问题思考与中国方案

化石能源的利用弊端下能源安全问题日趋复杂化,成为全球共同的挑战。能源体系的清洁、低碳化转型是破解能源安全问题的关键,这主要是由于能源转型促进了三大转变,加强了能源安全:发展模式由资源依赖转向技术依赖,为共享的能源安全奠定了基础;能源生产由矿物开采转向装备制造,创造了新的经济机遇;能源消费进入电气化时代,保障了可持续能源安全。在此背景下,中国必须坚定能源转型的基本路线,正确把握能源安全的新形势,推动落实全球能源安全的“三大转变”,为国际社会,尤其是其他发展中国家提供必要的、可行的能源转型中国方案。     

演绎都市--关于"2002上海双年展策展方案"的几点注解

本文以2002上海双年展主策展人的独特视角,分析了这次双年展以个体思考与群体讨论相结合的策展模式:并从全球化和都市化背景下对都市生活和都市文化的关注,介绍了策展对象、策展内容以及策展主题的确定。最后还分析了在“都市营造”的主题下引发的关于“都市性的审视,都市的文化身份,跨文化的空间,新艺术的家园”等学术问题的探讨。     

新农村建设规划的思考与启示——珠海市三个试点村的实践

推进新农村建设是中国社会快速城市化过程中的重要环节,也是实现全面小康社会、城乡经济发展、社会进步的客观要求.由于各地区村庄的发展条件和所处发展阶段不同,村庄需要解决的实际问题和发展路径存在差异,因此新农村建设必须强调规划先行、有序建设、因地制宜、分类指导、近远结合、强化实施.     

北京五合:从海归派到国际化

从上个世纪初建筑的“西学东渐”到今天，中国的“海归派”们已历经数代，他们不仅成为中国与世界发达国家沟通，联系的重要桥梁，并进一步成为引进世界建筑领域先进设计理念和建筑技术的快速通道。今天，越来越多的国内建筑设计师在国外求学有成甚至工作一段时间后，回到中国这个巨大的建筑设计市场。     

Market strategies and core capabilities in the building industry

The objective of this study is to show that the core competence approach has validity when applied to construction. The focus is on the analysis of the fit between market strategies of firms in the building industry and their core capabilities. Certain strategies require specific core capabilities and key external and internal conditions supporting these capabilities. The resource-based approach focuses on the conditions in a firm, the internal capabilities, and supports a core capability that is demanded. The network literature will be related to external conditions that support a core capability of a firm active in a certain market. In a multiple case study, firms are analysed that are involved in different stages of the building process. The case studies demonstrate firms with consistent patterns of market strategies, core capabilities, and supporting internal and external conditions. The specific core capability of the firm under investigation determines the types of external and internal conditions that are critical.     

Discharge characteristics of orifice spillway under oblique approach flow

Orifice type spillways are provided in the dam at lower level for facilitation in flushing of the sediment from the reservoir in addition to spilling the flood water. However, in most of the hydraulic structures, particularly in the earthen and rockfill dams, the spillway is not a part of the dam and it is provided on either of the banks of the river which results in oblique approach flow to the spillway that likely to affect the discharging capacity of the spillway. Presented in this paper is an experimental study for discharge characteristics of orifice type spillway under straight and oblique approach flow. Analysis of data indicates that discharge through the spillway decreases with increase of obliquity of the flow. The effect of the obliquity has been quantified and discharge equations for one, two and three simultaneous opening of the bays have been proposed.     

Understanding Customer Opinions From Online Discussion Forums: A Design Science Framework

Online discussion forums, which are full of user-generated content including user opinions and comments, are a potential gold mine for exploring new and useful ideas to augment competence in innovation. Companies need to systematically analyze and interpret online commentaries to enhance in-house research and design activities. To this end, a framework is proposed using a design science approach to enable automatic analysis of the content of online opinions and comments in connection with specific products, using a web lexicon established for this purpose. Furthermore, this framework is applied to an automobile as a proof-of-concept. Several nicknames for the car brand studied were created by web users, some with irony and sarcasm. A few metaphorical expressions were also used to describe product features. Engineering practitioners should recognize the importance of stylized online expressions in order to have a better understanding of customer needs and expectations through the application of this framework, which incorporates an evolutionary web lexicon.     

不同干燥方式对凝胶注模成形陶瓷坯体干燥过程的影响

本文通过凝胶注模成形得到氧化铝陶瓷坯体,采用直接干燥、高湿干燥、液相介质干燥等方式对坯体进行干燥,研究了不同的干燥方式对坯体干燥速率及干燥效果的影响。结果表明：凝胶注模成形坯体对环境温度、湿度的变化非常敏感,高湿干燥、液相介质干燥可有效减缓干燥速率,避免干燥过程中出现的开裂现象。     

加快构建龙岩中心城市“一小时城镇圈”研究

随着经济社会发展,地处闽粤赣边的龙岩中心城市面临着新的机遇和挑战,并随着基础设施的完善,构建分工协作、紧密联系的＂一小时城镇圈＂具有现实的可能性,又有客观的必要性。本文从龙岩独特的区位出发,探求龙岩中心城市实现＂一小时城镇圈＂的方法途径,对于促进龙岩城市可持续发展具有重要的意义。