Understanding tourist space at a historic site through space syntax analysis: The case of Gulangyu,China

Although tourist development appears to be an effective approach for the further development of historic towns, researchers have often contended that a balance is difficult to maintain between protection and development. This article applies space syntax analysis to provide an understanding of tourist space at historic sites on Gulangyu Island. The relationship between street network integration and the urban fabric as well as tourist preferences collated from data mining are explored and verified. Then, results of the space syntax analysis along with the proposed historic site plan are compared to provide suggestions in plan evaluation. This research provides a visualized and quantitative approach to the field of tourist management via the application of Geographic Information System (GIS) to urban morphological features, tourist preferences and results gathered by way of planning practice. The effectiveness and limitations of this proposed new approach are also debated and substantiated.     

评价阻燃纤维及其性能表征方法研究

阻燃纤维的研究和生产发展迅速，但尚无建立适合纤维形态的阻燃性能检测方法和评判标准。纤维阻燃性能测检方法的空白已在很大程度上制约阻燃纤维产品的开发和市场推广。经过三年的不懈努力，我们建立了涤纶和粘胶短纤维及涤纶长丝阻燃性能试验方法——氧指数法来表征其阻燃性能。     

球形锐钛矿TiO_2合成及晶种对TiO_2形貌的影响

成功地采用水解法制备了球形锐钛矿TiO2,研究了空白实验(未引入晶种)、引入10 nm TiO2晶种及菌体晶种对锐钛矿TiO2形貌的影响。结果表明随着引入晶种的颗粒逐渐变大,合成的锐钛矿型TiO2颗粒也在逐渐增大:空白实验中TiO2的颗粒平均直径约为0.5μm,10 nm TiO2晶种中TiO2的颗粒平均直径约为0.6~0.7μm,菌体中TiO2的颗粒平均直径约为0.8~0.9μm;加入晶种的颗粒越大,合成的锐钛矿型TiO2颗粒粒度越均匀,球形越完整、团聚现象越少。     

东北地区资源型城市建筑外部形态特征解析

从建筑外部形态角度入手,探索资源型城市建筑的发展方向,对于城市建设的科学性,有着重要的现实意义。本文从自然环境、地域文化和建筑技术等方面,解析了东北地区资源型城市建筑外部形态的主要特征、及其与各影响因素之间的关系,以期为资源型城市建设提供参考。     

城市用地密度分布及其演化：形态模型和过程模型的对比

研究目的：深入分析城市用地密度的空间分布及其演化特征,揭示城市空间结构特征与发展规律。研究方法：圈层分析法,形态模型（ULD）和过程模型（GMP）。研究结果：（1）城市用地密度从城市中心向外逐渐非线性衰减,呈现反S形分布,城市中心吸引和土地资源稀缺性是其形成的主要原因;（2）快速城市化时期城市郊区增长速度快于核心区,导致城市紧凑度下降,突显了合理管控城市边界的重要性;（3）城市紧凑度在城市化过程中表现出先下降后回升趋势,反映了从分散扩张到集中利用的空间模式转变;（4）对于多中心等复杂形态城市,引入新参数可以进一步提升过程模型的拟合优度。研究结论：本文揭示了城市用地密度空间衰减的形态特征和过程机理,形态和过程模型为定量理解城市用地密度空间格局提供了有效工具。     

Alternative evolutionary theories: A historical survey

Our overview has the objective of making our study relevant to bioeconomists. The need for the ‘alternatives’ to the Synthetic Theory of Evolution in social-economic studies was substantiated, for example, by Colombatto (Journal of Bioeconomics, 5, 1–25, 2003), who maintains that the natural-selection theory is ‘ill suited’ to describing evolutionary processes in economics. He proposed an alternative ‘non-Darwinian’ approach by equating the ‘non-Darwinian’ approach with a definite version of neo-Lamarckism. Yet, as we will show, there is a palette of alternative approaches within and beyond the neo-Lamarckism. We hope to give bioeconomists more choice in their theoretical modeling and constructing of analogies between biology and economics. It will also be shown that in the light of suggested definitions the concept of ‘universal Darwinism’ recently discussed in bioeconomics makes little sense as a generalizing category. In addition, in the concluding part of the paper we demonstrate that the majority of alternative approaches are far from being pigeonholed as archaic and once and for all wiped off the theoretical landscape. On the contrary, in recent years one can observe some revival of interest in the theoretical ‘heresies’.      

威尼斯水网形态对我国城市水网建设的创新启示

威尼斯是世界城市发展史中的一个特例,水网与建筑、桥梁、广场珠联璧合,形成了威尼斯自然而有机的城市空间形态,也孕育了水城的历史与文化。本文尝试从历史演进过程中梳理出城市水网对威尼斯的形成和发展所发挥的促进和决定性作用,提炼出水网形式和功能高度统一的布局特点。在此基础上,本文尝试对比得出目前国内城市水网形态建设过程中存在的不足,并提出粗浅建议。     

中国本土化城市形态论

针对中国城市正在表现为城市文化与城市文脉的断裂,城市记忆出现空白,城市形态从物理的、空间的、文化的、心理的层面出现断裂这些现象,全面反思了中国城市形态的各种主要问题,提出了城市形态本土化主张,强调了中国本土化城市形态的人与自然和谐为本的理念,并将之上升为一个民族经济与社会文化发展可持续力的构建和民族自信力的重构问题.     

桂北城镇聚落空间形态及景观

桂北城镇空间形态是特定的自然环境、社会经济和文化背景下,各构成要素共同作用的结果.塑造个性化的、可持续发展的城镇聚落形态是保持和发展城镇特色的主要内容和手段.通过对空间形态和景观格局形成的影响因素分析,提出了小城镇生态景观的完整性、空间生长的连续性、空间要素的有机性与空间形态的人文性是实现小城镇空间形态可持续发展的方法和途径.     

市镇规划分析:概念、方法与实践

通过对相关文献的回顾,系统描述和总结了"市镇规划分析"的理论、方法和历史根源以及在实践中的应用."市镇规划分析"作为行之有效的城市形态分析工具,可以帮助深化和扩展处于发展中的中国传统城市研究和历史保护规划管理.