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浏览/检索结果: 共10条，第1-10条 帮助

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Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios 期刊论文  OAI收割
JOURNAL OF ECOLOGY, 2022, 卷号: 110, 期号: 1, 页码: 210-220
作者:  Pan, Qingmin;  Symstad, Amy J.;  Bai, Yongfei;  Huang, Jianhui;  Wu, Jianguo
  |  收藏  |  浏览/下载：12/0  |  提交时间：2024/03/07
Biodiversity-productivity relationships in a natural grassland community vary under diversity loss scenarios 期刊论文  OAI收割
JOURNAL OF ECOLOGY, 2021, 页码: 11
作者:  Pan, Qingmin;  Symstad, Amy J.;  Bai, Yongfei;  Huang, Jianhui;  Wu, Jianguo
  |  收藏  |  浏览/下载：39/0  |  提交时间：2022/09/21
Species asynchrony and response diversity determine multifunctional stability of natural grasslands 期刊论文  OAI收割
JOURNAL OF ECOLOGY, 2019, 卷号: 107, 期号: 4, 页码: 1862-1875
作者:  Sasaki, Takehiro;  Lu, Xiaoming;  Hirota, Mitsuru
  |  收藏  |  浏览/下载：25/0  |  提交时间：2022/01/06
Effects of functional diversity loss on ecosystem functions are influenced by compensation 期刊论文  OAI收割
ECOLOGY, 2016, 期号: 9, 页码: 2293-2302
作者:  Pan, Qingmin;  Tian, Dashuan;  Naeem, Shahid;  Auerswald, Karl;  Elser, James J.
收藏  |  浏览/下载：72/0  |  提交时间：2016/12/05
Effects of functional diversity loss on ecosystem functions are influenced by compensation SCI/SSCI论文  OAI收割
2016
作者:  Pan Q. M.;  Tian, D. S.
  |  收藏  |  浏览/下载：37/0  |  提交时间：2017/11/09
Effects of functional diversity loss on ecosystem functions are influenced by compensation 期刊论文  OAI收割
ECOLOGY, 2016, 卷号: 97, 期号: 9, 页码: 2293-2302
作者:  Pan, Qingmin;  Tian, Dashuan;  Naeem, Shahid;  Auerswald, Karl;  Elser, James J.
  |  收藏  |  浏览/下载：18/0  |  提交时间：2022/07/08
Stabilize lead and cadmium in contaminated soils using hydroxyapatite and potassium chloride SCI/SSCI论文  OAI收割
2014
Wang L.; Li Y. H.; Li H. R.; Liao X. Y.; Wei B. G.; Ye B. X.; Zhang F. Y.; Yang L. S.; Wang W. Y.; Krafft T.
收藏  |  浏览/下载：36/0  |  提交时间：2014/12/24
The removal function of edge effect and amending with dwell time function (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Luo X.;  Zhang F.;  Zhang F.;  Wang X.-K.;  Zheng L.-G.
收藏  |  浏览/下载：36/0  |  提交时间：2013/03/25
Computer Controlled Optical Surfacing (CCOS) is widely used for making optical aspheric mirrors. In the practical fabrication  edge effect is an important problem which restricts the fabrication efficiency and accuracy seriously. In this paper  the edge effect is solved by working out the edge removal function and compensate with dwell time function. Skin Model is used to describe the pressure distribution when the tool hangs over the work-piece. The calculation model of edge removal function is derived from Skin Model theoretically. A removal function experiment is completed. The difference between the theoretical model and the experiment results is less than 5%. It means that the calculation model is suit for the practical fabrication. Than the dwell time is solved with edge effect compensation by matrix-based algorithm. In the end  actual experiment was done to validate the edge effect compensation method. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Study on experiment of grinding SiC mirror with fixed abrasive (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  Wang X.;  Zhang X.-J.;  Wang X.;  Wang X.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
A brand-new technology for manufacturing SiC reflecting mirror that is different from the traditional method is adopted  which is called as fixed abrasive surfacing technology. Not only the new method achieves better mirror quality with bigger diamond in diameter quickly  but also because of the fixed motion between the abrasive and workpiece and it will be good for surface finishing. During experiment  material removal characteristic which is on SiC under certain rotation speed and pressure by W7  W5  W3.5  W1.5 pellets has been tested. Through those removal curves  we come to a conclusion that the technology not only has a higher removal rate  but also has much more stability. In addition  the surface roughness experiment is mentioned. In the first stage  we achieved a mirror with surface roughness 42.758nm rms with W7 pellets. The surface roughness is descending as we change pellets with smaller diamond in diameter . At the end of experiment  a smooth surface with roughness 1.591nm rms has been achieved after using W1.5 pellets. Experiment results indicate that the technology which manufactures SiC reflecting mirror with fixed abrasive is able to replace the traditional slurry abrasive completely in certain finishing phase and also has a great foreground in application. 2009 SPIE.  
Occurrence of arsenic in groundwater in the suburbs of Beijing and its removal using an iron-cerium bimetal oxide adsorbent 期刊论文  OAI收割
WATER QUALITY RESEARCH JOURNAL OF CANADA, 2006, 卷号: 41, 期号: 2, 页码: 140-146
作者:  Dou, Xiaomin;  Zhang, Yu;  Yang, Min;  Pei, Yishan;  Huang, Xia
收藏  |  浏览/下载：14/0  |  提交时间：2015/10/21