首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   159篇
  免费   4篇
  2023年   2篇
  2022年   3篇
  2021年   5篇
  2020年   3篇
  2019年   4篇
  2018年   7篇
  2017年   5篇
  2016年   7篇
  2014年   2篇
  2013年   14篇
  2012年   11篇
  2011年   16篇
  2010年   6篇
  2009年   10篇
  2008年   7篇
  2007年   15篇
  2006年   6篇
  2005年   4篇
  2004年   10篇
  2003年   3篇
  2002年   2篇
  2001年   4篇
  2000年   5篇
  1999年   4篇
  1998年   1篇
  1997年   2篇
  1996年   3篇
  1993年   1篇
  1991年   1篇
排序方式: 共有163条查询结果,搜索用时 15 毫秒
1.
明清丝绸之路哈密—吐鲁番段存在一条自哈密西南沙尔湖转西北至鄯善进而抵达吐鲁番的“沙尔湖路”,它与“黑风川道”“小南路”等传统路线均不同。利用《蒙古山水地图》等文献,可对沙尔湖路具体行经进行考证复原。该路沿线地形平坦,有泉水与植被,在明廷与吐鲁番、清廷与准噶尔在哈密的政治和军事对峙阶段曾广泛使用,后因泉湖干涸、气候炎热而中断。  相似文献   
2.
社区作为基层自治组织以其独特的职能和地位对重大公共卫生事件防控产生影响。本文构建社区干预机制体系,并基于内蒙古社区防控新冠肺炎的实证分析,探讨社区干预在地区和城市、农牧区间的差异,结合问卷得分情况并运用主成分分析法分别探讨影响地区间、城市和农牧区社区干预的主要因素。研究发现:内蒙古中部地区社区干预表现突出,东部其次,西部最差,城市社区干预显著优于农牧区;组织架构和职能发挥对地区内的社区干预效果影响较大。城市社区干预以组织架构和职能发挥为主,内外联系为辅,农牧区社区干预强调组织架构和内外联系,职能发挥薄弱;社区干预依照“组织架构响应--自身职能发挥--内外联系建立”的机制推进。  相似文献   
3.
Environmental stewardship—a concept that describes the relationships between humans and the environment—is gaining increased attention as an approach that can address planetary sustainability issues. In-depth empirical investigations of local environmental stewardship are needed to understand how social-ecological context influences stewardship, as well as the arrangement of conceptual elements in applied settings. This study addresses these needs by conducting an in-depth exploration of environmental stewardship in the Niagara Region of Canada. A single embedded case study design is employed, with environmental stewardship initiatives constituting the individual units of analysis with the case. Analysis of the spatial arrangement of a total of 89 initiatives indicated that initiatives tended to cluster closer to the Niagara River and in more populous municipalities. The significance of collaboration, tensions between the environment and economic development, and concerns about political impacts emerged as themes across contextual factors. The configuration of stewardship elements reveals interesting discrepancies between initiatives and previous stewardship research focused on larger scales, individuals, and organizations. Further analysis is encouraged to illuminate environmental stewardship in other settings as well as advance relational understanding of conceptual elements.  相似文献   
4.
Regional design, long a backbone for spatial planning, even if under other names, has become topical again for two reasons – as a key strategy and as a key tool in spatial management. This is due to several reasons. New conditions of urbanization that result from the convergence of several factors highlight the need for spatial strategy formation and application at supra-metropolitan scales. These new conditions include globalization, climate change, booming urban population, increased mobility and interconnectivity, and new infrastructure technologies. These forces driving urbanization today and into the future play out at the urban scale, which is increasingly encompassed in the city-region. The solutions to the impacts and problems that these forces cause must be dealt with by a strategic urbanism at a scale that matches. This scale of urbanism can be denoted as regional design. To justify these claims and to understand the origins of regional design and its relevance today and into the future, the master strokes in its history are presented next. After that, we discuss current concepts and practices in regional design. In conclusion, we offer answers to the question: why a resurgence of regional design?  相似文献   
5.
Metallurgical study of seven cast iron artifacts recovered from sites of the former Xiongnu (BC 3rd to AD 1st), Turk (AD 6th to 8th), Khitan (AD 10th to 12th), and Mongolian empires (AD 12th to 15th) shows that the earlier Xiongnu and Turk artifacts were made of cast iron alloys of near eutectic composition. The later Khitan and Mongol objects had greatly reduced carbon content in the range of ultrahigh carbon steel rather than cast iron, and contained more than 0.5 mass % silicon as an alloying element. Inclusions high in sulfur, phosphorus or silicon are also present. These differences suggest that Mongolia experienced a technical transition a few centuries before the establishment of the Mongolian empire, which is in agreement with some written accounts. The microstructures of the cast iron artifacts are compared with the related archaeological and documentary evidence. The results suggest that the use of fossil coal in smelting and the state policy of controlling iron production were the major factors responsible for the transition.  相似文献   
6.
抗战时期陕甘宁边区代耕问题研究   总被引:6,自引:0,他引:6  
宿志刚 《史学月刊》2007,3(9):64-71
抗日根据地的代耕是根据地政权实行的帮助没有劳动力或劳动力不足的抗工属和退伍军人代耕、代种、代管、代收的制度。在陕甘宁边区,它是诸多优抗措施中最中心的方式。边区政府颁布了一系列相关条例和细则,制定了代耕原则、代耕办法、代耕方式及加强代耕的组织领导和思想教育等措施。代耕的实施,对改善抗工属及退伍军人的生活,稳定军心,激励士气乃至抗战的胜利起到了重要作用。边区的代耕充分体现了统一战线的政治特征和全民性、长期性等时代特色。  相似文献   
7.
文物艺术品市场多元格局的形成,国有文物商店所处的市场竞争环境愈发激烈,凭借原有的运营模式已难于获得新的发展空间,实施产业联盟是国有文物商店在现有市场环境中赢得竞争、获得发展的有效路径。长三角地区有国有文物商店12家,丰富的文物藏量、相似的组织机构、繁荣的文物市场,为建立和实施产业联盟提供了有利条件。产业联盟既可以整合各个个体的资源,充分利用各自的有利因素,又可以避免相互之间的恶性竞争,从而产生最优的协同效应和规模经济效应。  相似文献   
8.
仪式是人类学的一个重要范畴,也是人类精神生活中一种重要的活动,它具有象征特性、符号特性和场域特性,作为人类一套独特的话语,仪式是人类解决现实矛盾的一种超现实手段,仪式的这些特性与艺术有着惊人的相似之处。  相似文献   
9.
ABSTRACT

Regions or regional development have not only gained importance in spatial planning, but also got fuzzy meanings. Originally regions refer to a specific geographical demarcated area, often with an inductive historic or cultural meaning. In the meantime, in our networked world, the concept also refers to transport regions based on models of daily urban systems, or functional regions based on distinctive urban or social functions. Within the post-industrial era, the concept also gained importance as economic regions. In this paper, we will explore how regional concepts emerge out of specific economic interest concerning technological innovation. We will focus on a cross-border municipal case, for example, the triangle Eindhoven–Leuven–Aachen. With the help of the assemblage and actor-network theory, we will show how the identity of regions is translated by evolving actor-networks, and how these actor-networks are influenced and adapted by those alternating regional identities themselves. From these insights, we will come up with some ideas and propositions how regional planning could play an important role within these co-evolving processes.  相似文献   
10.
The aim of this paper is to investigate whether the ceramics from the Goguryeo fortified sites of the Han River region in central Korea were manufactured and consumed locally during the southern expansion of the Goguryeo State (475–551 ce ). For this research, 88 ceramic samples from seven contemporary sites in the southern territories of Goguryeo were sampled and analysed by ceramic thin‐section petrography and neutron activation analysis (NAA). In addition, to establish a possible chemical fingerprint at Hongryeonbong Fort 2, five clay specimens were also gathered and analysed from the pottery firing structure. The results of this analytical study indicate that the majority of the ceramics from the Goguryeo fortified sites of central Korea were produced and circulated within this newly acquired region. In addition, it is highly probable that Hongryeonbong Fort, which contains the remains of what may be ceramic firing architecture, is the place of production for the ceramics.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号