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   1058篇
  免费   8篇
  国内免费   40篇
安全科学   15篇
废物处理   58篇
环保管理   71篇
综合类   89篇
基础理论   154篇
环境理论   1篇
污染及防治   532篇
评价与监测   109篇
社会与环境   71篇
灾害及防治   6篇
  2023年   33篇
  2022年   182篇
  2021年   170篇
  2020年   50篇
  2019年   57篇
  2018年   54篇
  2017年   72篇
  2016年   59篇
  2015年   29篇
  2014年   49篇
  2013年   74篇
  2012年   31篇
  2011年   43篇
  2010年   20篇
  2009年   27篇
  2008年   22篇
  2007年   24篇
  2006年   9篇
  2005年   17篇
  2004年   11篇
  2003年   7篇
  2002年   6篇
  2001年   3篇
  2000年   7篇
  1999年   5篇
  1998年   5篇
  1997年   2篇
  1996年   2篇
  1994年   4篇
  1993年   2篇
  1992年   3篇
  1991年   2篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1985年   2篇
  1984年   1篇
  1982年   1篇
  1981年   1篇
  1974年   1篇
  1973年   1篇
  1964年   1篇
  1963年   2篇
  1962年   2篇
  1961年   2篇
  1959年   4篇
  1957年   1篇
  1954年   1篇
  1953年   1篇
排序方式: 共有1106条查询结果,搜索用时 15 毫秒
11.
Environmental Science and Pollution Research - The present work describes the successful functionalization/magnetization of bio-polymeric spores of Lycopodium clavatum (sporopollenin) with...  相似文献   
12.
13.
14.
Despite its extraordinary price, ceramic membrane can still be able to surpass polymeric membrane in the applications that require high temperature and pressure conditions, as well as harsh chemical environment. In order to alleviate the high cost of ceramic material that still becomes one of the major factors that contributes to the high production cost of ceramic membrane, various attempts have been made to use low cost ceramic materials as alternatives to well-known expensive ceramic materials such as alumina, silica, and zirconia in the fabrication of ceramic membrane. Thus, local Malaysian kaolin has been chosen as the ceramic material in this study for the preparation of kaolin hollow fibre membrane since it is inexpensive and naturally abundant in Malaysia. Due to the fact that the sintering process plays a prominent role in obtaining the desired morphology, properties, and performances of prepared ceramic membrane, the aim of this work was to study the effect of different sintering temperatures applied (ranging from 1200 to 1500 °C) in the preparation of kaolin hollow fibre membrane via dry/wet phase inversion-based spinning technique and sintering process. The morphology and properties of membrane were then characterised by SEM, AFM, FTIR, XRD, and three-point bending test, while the performances of membrane were investigated by conducting water permeation and Reactive Black 5 (RB5) dye rejection tests. From the experimental results obtained, the sintering temperature of 1400 °C could be selected as the optimum sintering temperature in preparing the kaolin hollow fibre membrane with the dense sponge-like structure of separation layer that resulted in the good mechanical strength of 70 MPa with the appreciable water permeation of 75 L/h m2 bar and RB5 rejection of 68%.  相似文献   
15.
Environmental Science and Pollution Research - Recent research has shown a huge impact of non-renewable energy (NRE) production on environmental health. In this context, this work analyzes the...  相似文献   
16.
Environmental Science and Pollution Research - This study investigated the coagulation performance of titanium tetrachloride (TiCl4) for leachate treatment and preparation of titanium oxide (TiO2)...  相似文献   
17.
Environmental Science and Pollution Research - The accelerated urbanization in China was already coupled with a steadily increasing demand for energy usage. The present study major aim was to...  相似文献   
18.
Environmental Science and Pollution Research - This study explores the symmetric and asymmetric effects of physical infrastructure on energy consumption, economic growth, and air pollution of...  相似文献   
19.
Environmental Science and Pollution Research - There is a strong association between environmental quality and economic activity. Empirical studies term this relationship as environmental Kuznets...  相似文献   
20.
Environmental Science and Pollution Research - The instant endeavor was undertaken to monitor copper (Cu) contents in water, soil, forage, and cow’s blood impacted by heavy automobiles in...  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