基于模糊逻辑的城市土地集约化利用评价--以江苏省地级城市为例

基于2000年的统计资料,选择地均GDP、地均财政收入等九个指标,应用模糊逻辑(Fuzzy Logic)方法从土地经济效益和土地使用效率两个方面对江苏省各地市的土地集约化利用程度进行了评价。结果表明江苏省13个地市的土地集约化利用程度从高到低可以分为五个等级。评价结果基本上反映了各城市人地关系的紧张程度和城市土地的经济产出效率。     

跨国移民的地方感研究：以在穗非洲移民为例

本文从“地方感”这一核心概念出发，采用问卷调查、参与式观察和访谈等综合研究方法，系统地评估了在穗非洲移民对广州的城市感知特征及其内在机制。基于研究提出的五维地方感评价体系，本文得到主要结论如下：①在穗非洲移民对广州地方感的五个维度的评价中，呈现出“地方满意度>地方依赖>地方信任>地方依恋>地方认同”的总体特征；②在穗非洲移民的积极地方感主要是通过广州的物质和资源环境构建起来的；③在穗非洲移民的消极地方感则主要是通过地方信任、地方认同和地方依恋等精神维度的交流形成的；④在穗非洲移民地方感的形成路径有积极地方感和消极地方感的区别，但是它们之间的边界并不是很明显，有比较强的流变性。本文从研究对象、研究内容和研究方法上对中国的跨国移民及其地方感研究进行了拓展，为我国城市规划和建设提供一定的借鉴价值。     

常见彩绘文物霉菌抑菌剂评价体系的构建

彩绘文物表面滋生霉菌会改变文物的颜色与外貌、破坏整体稳定性,对文物造成严重破坏。防止霉菌破坏的重要方法就是使用抑菌剂,但目前缺乏科学评价彩绘文物抑菌剂的方法体系。本研究选择异噻唑啉酮、戊唑醇等12种抑菌剂,以产黄青霉(Penicillium chrysogenum)、杂色曲霉(Aspergillus versicolor)、枝孢菌(Cladosporium sp.)、交链孢霉(Alternaria alternata)和日本曲霉(Aspergillus japonicus)五种彩绘文物常见霉菌为对象,从抑菌活性、抗药性、颜色变化、抑菌效果及其长效性等方面对抑菌剂性能进行了系统评价,并初步构建了用于彩绘文物典型病害菌防治的抑菌剂评价方法体系。实验结果表明:依据所构建的评价方法体系筛选出对上述五种常见霉菌抑菌效果良好的抑菌剂及其质量分数,即0.15%异噻唑啉酮和戊唑醇,2%苯扎氯铵、肉桂精油和克霉唑；同时,苯扎氯铵对五种霉菌抑菌效果的长效性良好；0.2%纳他霉素会引起部分颜料颜色的改变。本研究通过多项指标选择抑菌剂,所构建的霉菌抑菌剂评价体系为彩绘文物的霉菌防治提供依据,对彩绘文物保护具有重要意义。     

网络社会视角下的城市意象理论辨析与规划应用

在信息技术深度融合的网络社会进阶中，移动互联网支撑城市环境的即时共享与未来愿景，非在地的空间感知生成元宇宙类现实/虚拟的城市意象，网络媒介叠加于建成环境主/客观作用的传统经验感知，形成感知拼贴、地方再构、时间重叙、认知分异的意象特征。研究通过梳理互联网语境下的城市意象研究，揭示网络社会背景下城市意象的先验式建构过程，发现了意象节点偏离于城市社会经济活动峰值区域的一般规律，并归纳了互联网环境下城市意象研究的图片、文本和轨迹等应用素材，以丰富人本主义城市设计理论。     

刘孝标《世说注》撰著时间考

刘孝标<世说注>的撰著时间问题,目前学术界尚无定论.已有的一些观点都存在着很大的问题.本文从刘孝标为<世说新语>作注所需要的条件出发,结合其生平经历,并综合运用各种材料,得出了关于这一问题的最新结论:刘孝标<世说注>的撰著时间当在梁武帝天监十五年(516)至普通二年(521)之间.     

碧水青苔衣 白云红树雨——记中国历史名城博览会·雨花石文化暨周德麟藏石精品展

雨花石文化是南京特有的赏石文化,有着深刻的人文内涵,对其中蕴涵的人文历史还有待进一步的研究。     

Canadian Foreign Policy in an Era of New Constitutionalism

This article historically assesses Canada’s role in developing new constitutional mechanisms in the global economy. Drawing on the literatures of International Political Economy and analyses of Canadian foreign policy, a reassessment of Canada’s position in the international economic order is proposed. As a consequence of the geostrategic advantages afforded Canada between successive global hegemons, Canada’s path-dependent development has situated the country to benefit and insist on disciplinary mechanisms for all states. Canada’s defense of a rules-based order demands the country adopt an increasingly unfamiliar role as crisis threatens the stability of the global economy. Consequently, Canada has become a primary defender of the new constitutional order of global capitalism, a position that seems opposed to traditional cooperative visions of Canadian foreign policy. Moreover, as the Canadian state becomes an active global proponent of neoliberal economic reforms it undermines the intermediary role of the Canadian state in its own markets, potentially undermining one of the historical purposes of Canadian federalism.     

纸张液相脱酸效果主要影响因素及相应对策

纸张是传承中华文明的重要信息载体,液相脱酸法是应对纸张酸化并延缓纸张劣化的优选手段。事实证明,制备性质优良的脱酸液以高效去酸留碱并采用适宜工艺以保持纸张平整是实现优异脱酸效果的重要前提。本文对国内外近十年内多数液相脱酸工作进行调研,在此基础上从浸润性、分散性、加固性、抗菌性及防皱工艺五方面对纸张液相脱酸效果影响因素进行梳理并总结相应对策,为后续研究工作提供一定参考。     

Experimental Study on Seismic Performance of Through-Tenon Joints with Looseness in Ancient Timber Structures

ABSTRACT

In order to study the influence of looseness on seismic performance of through-tenon joints, six through-tenon joints specimens in 1:3.2 scale, including one tight-fitted joint and five loose joints, were fabricated according to the Engineering Fabrication Methods of Qing dynasty. The failure modes, mechanical behaviors such as the hysteresis and envelope curves, strength and stiffness degradations, energy dissipation, and deformation of the specimens under low cyclic reversed loading tests were analyzed. Results show that the failure modes of theses joints under positive and negative loadings are bending damage on the big tenon head and tearing damage on the variable cross-section, respectively. The hysteresis curves of joints appear to be anti-Z shape and present typical pinching effect. The greater the degree of looseness is, the more obvious the slippage is. The bending moment, stiffness and energy dissipation of loose joints are lower than those of the tight-fitted joint under the same rotation angle, and the increase in the loose degree cause them to gradually decrease. Meanwhile, the behavior of the through-tenon joints is further simulated by the nonlinear finite element analysis program, and the test results agree well with the numerical analysis results.