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11.
以往学界对开埠初期上海租界水环境治理,一般采取填浜筑路的视角,而本文通过对档案资料的考察发现,租界当局对租界内的河浜采取了灵活的治理办法,对于挡路和阻碍市政的死水河浜进行填埋,而对于一般的潮汐河浜和航运河浜采取了清淤、疏通的保护措施,挖掘开通了新河浜,从而使河浜水系的功能得以延续。为了排水需要,租界当局辟建了下水道系统,其治理办法却借鉴于治河方法。  相似文献   
12.
A displacement-based design (DBD) procedure for buildings equipped with different seismic isolation systems is proposed. It has been derived from the Direct Dispaced-Based Design (DDBD) method recently developed by Priestley et al. [2007] Priestley, M. J. N., Calvi, G. M. and Kowalsky, M. J. 2007. Displacement-Based Seismic Design of Structures, Pavia, , Italy: IUSS Press.  [Google Scholar]. The key aspect of the proposed procedure is the definition of a target displacement profile for the structure. It is assigned by the designer to achieve given performance levels, expressed in terms of maximum displacement of the isolation system and maximum interstory drift. The proposed design procedure has been developed for four different idealized force-displacement relationships, which can describe the cyclic response of a wide variety of isolation systems, including: (i) Lead-Rubber Bearings (LRB); (ii) High-Damping Rubber Bearings (HDRB); (iii) Friction Pendulum Systems (FPS); and (iv) Combinations of lubricated Flat Sliding Bearings (FSB) with different re-centering and/or energy dissipating auxiliary devices. In this article, the background and implementation of the design procedure is presented first. It is followed by the results of validation studies based on nonlinear time-history analyses on different design configurations of base isolated buildings.  相似文献   
13.
Under the pressure of the national crisis in modern China, millennia-old traditional concepts have been broken and adjusted, and new trends and ideas have emerged in large numbers. In order to defeat local cosmetics, from the moment they entered China foreign cosmetics companies attacked the traditional Chinese cosmetics of eyebrow pigment (dai), lip pigment (gong), rouge (zhi), and face powder (fen). Corresponding to the enlightenment ideas of the early twentieth century, women could no longer pursue beauty in a way that harmed their bodies. In the movement to liberate women’s bodies in the 1920s, radical intellectuals developed a severe criticism of the bad habits of using corsets and applying powder, and the concept of “healthy beauty” came into being. However, in the context of the development of the women’s liberation movement and the respect for women’s consumer rights, the healthy beauty theory failed to suppress women’s consumption of beauty products, and “natural beauty” and “artificial beauty” ultimately coexisted in lifestyles of women in the modern era of Shanghai.  相似文献   
14.
This article advances the existing literature on British imperial aeronautics by explaining how Lord John Montagu’s extensive collaboration with military and government officials during the first decades of powered flight expanded the global distribution of the air forces and anticipated their important later role in facilitating international communication and security. In reconsidering problems of conquest and governance through an aeronautical perspective, Montagu strengthened critical junctures between British civil and military affairs, while his innovative employment of the new technology also complicated divisions between the metropolis and periphery in ways that would intensify the destructiveness of modern warfare across the planet.  相似文献   
15.
From 1955 to 1988, the Royal Australian Air Force (RAAF) maintained a large airbase in Northern Malaysia. For the first 15 years of its existence, RAAF Butterworth had a modest and incomplete perimeter fence. With the end of British military colonialism in Malaysia and Singapore following the implementation of the ‘East of Suez’ policy, the Australians became preoccupied with their physical security and the role of the perimeter fence. By exploring the adoption of practices of exclusion via physical barriers in the wake of British withdrawal, this paper argues that the changing psychological outlook of Australian military officials reflected broader Australian anxieties about their own sense of ‘Britishness’ and the nation’s place in a decolonising Asia. As the Australians lost their British ‘blanket’ they built a fence.  相似文献   
16.
This paper provides an analysis of images associated with the British Royal Air Force's recent ‘Be Part of the Story’ war comic-styled military recruiting campaign. Set around literatures in popular geopolitics, the paper builds on the concept of comic book visualities to suggest that the ‘Be Part of the Story’ images reproduce longstanding war comics conventions, and coherently represent the complex, relational and spatially disparate battlespaces of the present. The paper, firstly, provides a detailed history of war comics as they have mediated war to publics, and argues that war comics should figure more strongly in future studies of popular geopolitics. Secondly, it argues that more than simply part of a pervasive ‘cultural condition’ of militarization, military recruitment is a vital medium through which states and militaries view, and choose to represent their role in the world. Lastly, it demonstrates that ‘Be Part of the Story’ reproduces the violent visions, metaphors and cultural designations integral to state-centric narratives of global politics, and specifically, spatial principles inherent to network-centric warfare.  相似文献   
17.
考察古代人的结构力学认识,是对古建筑结构的分析及解释必不可少的研究之一。因为与现代建筑结构不同,古代建筑结构主要取决于当时工匠们的经验与直观判断。古代人对结构力学的认识概念,我们从中国古文献中可以看到。通过本研究发现,古代人已经有对力与荷重的力学认识以及古建筑的对称结构就是从古代力学的平衡概念出发而发展的。  相似文献   
18.
In the decades before the full-scale war with Japan in 1937, a robust series of institutions connected the bourgeois with intellectuals (which included professionals and journalists, as well as academics) in Shanghai. Collectively, these institutions can be understood as forming an urban "cultural nexus of power" that allowed non-state actors to effectively control aspects of Shanghai's political life. This bourgeois-intellectual alliance was not inevitable; no similar bonds existed between these same two groups in Beijing. It was forged in Shanghai due to the city's unique historical position as a Treaty Port and its dynamic economy, which included an extensive structure of private higher education and a market-based publishing industry. Unlike the rural "cultural nexus of power" originally described by Prasenjit Duara, this urban nexus grew stronger during the political and economic changes of the early twentieth century. War and revolution in the 1930s and 1940s, however, destroyed the connections between the bourgeoisie and the intellectuals, ending the vibrant urban environment they had created.  相似文献   
19.
学界对于传统中国城市空间近代转型相对缺乏关注。通过对上海县城的研究发现,在人口压力增加、城市用地紧张、环境恶化及租界示范效应的多重作用下,明清治所城市空间结构不再适用于20世纪初的上海县城,城市空间亟待改造。上海县城市政机构的设立为解决这一需求提供了制度保障与财力支持,故县城得以开展前所未有的大规模建设,包括道路、排水、桥梁、码头、义冢迁移、公地改造、市容清理等,以不同以往的空间结构重塑了上海县城。这种因人地关系紧张带来的适应性改善不限于上海一地,而具有普遍性的意义。  相似文献   
20.
在工业化、城市化相互交织的进程中,大都市区城乡之间的权益矛盾关系极其复杂,行政区划调整成为调节城乡权益配置的重要政策工具,由此为协调城乡关系的行政区划调整也很频繁。本文以城乡关系变迁为逻辑主线,分析了上海市行政区划变更所面临的国家宏观背景变迁、战略调整,总结得出上海市存在"市管县体制"、市辖区切块扩张、撤乡改镇、整县改区等行政区划调整模式,这些调整有利于国家推进工业化、都市化战略,并存在城市中心主义倾向,将在建构城乡一体化发展新格局中发挥重要的作用。  相似文献   
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