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   562篇
  免费   23篇
  2023年   6篇
  2022年   6篇
  2021年   1篇
  2020年   26篇
  2019年   17篇
  2018年   35篇
  2017年   40篇
  2016年   33篇
  2015年   21篇
  2014年   35篇
  2013年   178篇
  2012年   17篇
  2011年   20篇
  2010年   20篇
  2009年   12篇
  2008年   17篇
  2007年   17篇
  2006年   9篇
  2005年   8篇
  2004年   7篇
  2003年   2篇
  2002年   10篇
  2001年   5篇
  2000年   4篇
  1999年   4篇
  1998年   11篇
  1997年   2篇
  1996年   5篇
  1995年   1篇
  1994年   3篇
  1993年   1篇
  1992年   2篇
  1989年   2篇
  1985年   1篇
  1984年   1篇
  1981年   1篇
  1975年   1篇
  1973年   2篇
  1972年   1篇
  1966年   1篇
排序方式: 共有585条查询结果,搜索用时 15 毫秒
61.
Boundary spanning in social and cultural geography   总被引:1,自引:0,他引:1  
This article situates interactions between German- and English-language social and cultural geographies since the mid-twentieth century within their wider intellectual, political and socio-economic contexts. Based on case study examples, we outline main challenges of international knowledge transfer due to nationally and linguistically structured publication cultures, differing academic paradigms and varying promotion criteria. We argue that such transfer requires formal and informal platforms for academic debate, the commitment of boundary spanners and supportive peer groups. In German-language social and cultural geography, these three aspects induced a shift from a prevalent applied research tradition in the context of the modern welfare state towards a deeper engagement with Anglophone debates about critical and post-structuralist approaches that have helped to critique the rise of neoliberal governance since the 1990s. Anglophone and especially British social and cultural geography, firmly grounded in critical and post-structuralist thought since the 1980s, are increasingly pressurized through the neoliberal corporatization of the university to develop more applied features such as research impact and students’ employability.  相似文献   
62.
63.
64.
65.
Nondestructive analyses of medieval reverse paintings on glass revealed the same dyes and pigments customarily used in panel paintings. However, there is one exception: the black colorant is not a carbon-based pigment, but black enamel. In this respect, the stylistic as well as the technical influence of stained glass artwork can clearly be seen on reverse paintings on glass. However, there is a crucial difference: in reverse paintings, the black enamel is not fired onto the glass but painted (cold painting). Additional analyses confirmed these findings. Based on these results, the art form “reverse painting on glass” has technically to be characterized as a mixture of “stained glass” and “panel painting” that nonetheless develops into a genre of its own.  相似文献   
66.
Archival data, survey and interviews were used to investigate mediation activities among judges in the Norwegian Land Consolidation Court. The court handles land issue disputes among farmers in rural Norway. Despite having both planning skill and court power the judges spend a considerable amount of time mediating the disputes. In fairly integrative planning disputes they increase their mediation efforts with conflict level, case size and complexity. Mediation helped to reduce objections to the plan implemented. In more distributive boundary disputes they mediated less, and to a lesser degree varied efforts with case characteristics. However, settlements were achieved in the less conflictive, smaller and less complex cases. Considerable variations in mediation styles were found among the judges. Those with settlement oriented behaviour achieved more settlements than those that focused on facilitating communication. Implications are discussed.  相似文献   
67.
68.
69.
How are we to understand and analyse the constitutional tension in Turkey between the judiciary and the political sphere? In this article the issue is mirrored in the political crisis which started in April 2007 with the nomination of Abdullah Gül as presidential candidate by the moderate Islamist Justice and Development Party (AKP). The more detailed empirical background consists primarily of the dress code problematics including the matter of party closure. Theoretically, the “hegemonic preservation” thesis elaborated by Ran Hirschl turned out to be a useful instrument when it comes to explaining this political crisis as well as the origin of the so-called new constitutionalism. This is illustrated by the judicial activism in the headscarf affair as well as by the eagerness of the Republican People's Party (CHP), as the political representative of the secular establishment, to play the ‘Atatürk card’ and to submit the protection of their interest to an independent judiciary and not to the uncertainties of the mechanisms of majoritarian democracy. However, with regard to the current Turkish case my analysis also shows that Hirschl's thesis is too static and should be complemented with a more dynamic perspective of constitutional politics as a repeated game. One example of this is that even if the Turkish Constitutional Court (TCC) had declared the constitutional amendment on the headscarf invalid and voted for economic sanctions against the AKP, it did not close the party down.  相似文献   
70.
Understanding hydrothermal processes during production is critical to optimal geothermal reservoir management and sustainable utilization. This study addresses the hydrothermal (HT) processes in a geothermal research doublet consisting of the injection well E GrSk3/90 and production well Gt GrSk4/05 at the deep geothermal reservoir of Groß Schönebeck (north of Berlin, Germany) during geothermal power production. The reservoir is located between ?4050 to ?4250 m depth in the Lower Permian of the Northeast German Basin. Operational activities such as hydraulic stimulation, production (T = 150°C; Q = ?75 m3 h?1; C = 265 g l?1) and injection (T = 70°C; Q = 75 m3 h?1; C = 265 g l?1) change the HT conditions of the geothermal reservoir. The most significant changes affect temperature, mass concentration and pore pressure. These changes influence fluid density and viscosity as well as rock properties such as porosity, permeability, thermal conductivity and heat capacity. In addition, the geometry and hydraulic properties of hydraulically induced fractures vary during the lifetime of the reservoir. A three‐dimensional reservoir model was developed based on a structural geological model to simulate and understand the complex interaction of such processes. This model includes a full HT coupling of various petrophysical parameters. Specifically, temperature‐dependent thermal conductivity and heat capacity as well as the pressure‐, temperature‐ and mass concentration‐dependent fluid density and viscosity are considered. These parameters were determined by laboratory and field experiments. The effective pressure dependence of matrix permeability is less than 2.3% at our reservoir conditions and therefore can be neglected. The results of a three‐dimensional thermohaline finite‐element simulation of the life cycle performance of this geothermal well doublet indicate the beginning of thermal breakthrough after 3.6 years of utilization. This result is crucial for optimizing reservoir management. Geofluids (2010) 10 , 406–421  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