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   111篇
  免费   3篇
  国内免费   1篇
测绘学   10篇
大气科学   11篇
地球物理   44篇
地质学   23篇
海洋学   8篇
天文学   3篇
综合类   1篇
自然地理   15篇
  2023年   1篇
  2021年   1篇
  2020年   1篇
  2019年   4篇
  2018年   1篇
  2017年   2篇
  2016年   6篇
  2015年   1篇
  2014年   4篇
  2013年   7篇
  2012年   6篇
  2011年   5篇
  2010年   4篇
  2009年   7篇
  2008年   9篇
  2007年   7篇
  2006年   3篇
  2005年   4篇
  2004年   1篇
  2003年   3篇
  2002年   2篇
  2001年   2篇
  2000年   4篇
  1999年   1篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1995年   1篇
  1993年   2篇
  1992年   1篇
  1991年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   3篇
  1983年   1篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   3篇
  1976年   1篇
  1973年   1篇
  1971年   1篇
  1890年   1篇
排序方式: 共有115条查询结果,搜索用时 46 毫秒
111.
As structures built now will be expected to last well past 2064 (50 years) it is vital that the effect of climate change be considered in their design and material selection. In particular changes in the rate of corrosion of metal components must be considered. To this end this study estimates the maximum likely change in the corrosion rate for the year 2070 so it can be included in current design. Changes in corrosion are estimated for 11 coastal and inland locations in Australia. For each station the climatic data (3-hourly) in 2070 is estimated by modifying current data with probable changes based on two climate change models (CSIRO: CSIRO-Mk 3.5 and MRI: MRI-CGCM 3.2.2). The former is for high global warming rate and the later the A1FI scenario. This climatic data is then run the Corrosion “predictor” (a multi-scale process model) to predict corrosion at each location. It is found that significant changes occur with corrosion in coastal locations increasing substantially, in contrast the corrosion at inland locations will decrease moderately. The increase in coastal locations is associated with a greater build up of salt due to less frequent rain evens while the reduction in inland locations is associated with a reduction in RH and thus surface wetness.  相似文献   
112.
113.
114.
Izvestiya, Physics of the Solid Earth - Laboratory experiments on studying the aftershock regime are carried out on sandstone specimens at different levels of axial loading and uniform compression...  相似文献   
115.
Clement TP 《Ground water》2011,49(5):620-629
Groundwater models are routinely used in hindcasting applications to predict the past concentration levels in contaminated aquifers. These predictions are used in risk assessment and epidemiological studies, which are often completed either for resolving a court case or for developing a public‐policy solution. Hindcast groundwater modeling studies utilize a variety of computer tools with complexity levels ranging from simple analytical models to detailed three‐dimensional, multiphase, multispecies, reactive transport models. The aim of this study is to explore the value of using complex reactive transport models in hindcasting studies that have limited historic data. I review a chlorinated solvent exposure problem that occurred at a U.S. Marine Corp Base in Camp Lejeune, North Carolina and use it as an example to discuss the limits of hindcasting modeling exercises. The lessons learned from the study are used to reflect upon the following questions related to model complexity: How should we decide how much is enough? Who should decide when enough is enough?  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