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Optimizing foliar allocation of limiting nutrients and fast-slow economic strategies drive forest succession along a glacier retreating chronosequence in the eastern Tibetan Plateau 期刊论文  OAI收割
PLANT AND SOIL, 2021, 页码: DOI: 10.1007/s11104-020-04827-3
作者:  
Lei, Yanbao;  Du, Liushan;  Chen, Ke;  Plenkovic-Moraj, Andelka;  Sun, Geng
  |  收藏  |  浏览/下载:34/0  |  提交时间:2021/03/15
Design of heliostats field for the scale of 1MW solar power tower plant (EI CONFERENCE) 会议论文  OAI收割
2012 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2012, March 27, 2012 - March 29, 2012, Shanghai, China
作者:  
Zhang H.;  Wang Z.;  Wang Z.;  Zhang H.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
The development in basic technology and market strategy of solar thermal power techniques is booming rapidly due to the limited fossil resources and severe environmental problems all over the world. In this paper  the design method of heliostats field for the scale of 1MW solar power tower plant with latitude of 40.4N at the design point of the noon of spring equinox is introduced  which uses the multiplication of three efficiencies of cosine  atmospheric transmittance and intercept as the preliminary boundary limit to locate heliostats  while the spacing between heliostats is set not only for less shading and blocking  but also for the availability of installation and maintenance of heliostats. Furthermore  its optical performance tested by the software HFLD  is quite good  which has annual average efficiency of 71.36% and design point efficiency of 80%. 2012 IEEE.  
Swarm robots task allocation based on local communication (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Yongming Y.; Xihui C.; Qingjun L.; Yantao T.
收藏  |  浏览/下载:13/0  |  提交时间:2013/03/25
The registration of aerial infrared and visible images (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Educational and Information Technology, ICEIT 2010, September 17, 2010 - September 19, 2010, Chongqing, China
作者:  
Liu J.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
In order to solve the registration problem of different source image existed on aerial image fusion  algorithms based on Particle Swarm Optimization (PSO) are applied as search strategy in this paper  and Alignment Metric (AM) is used as judgment. This study has realized the different source image registration of infrared and visible light with high speed  high accuracy and high reliability. Basically  with little restriction of gray level properties  a new alignment measure is applied  which can efficiently measure the image registration extent and tolerate noise well. Even more  the intelligent optimization algorithm - Particle Swarm Optimization (PSO) is combined to improve the registration precision and rate of infrared and visible light. Experimental results indicate that  the study attains the registration accuracy of pixel level  and every registration time is cut down over 40 percent compared to traditional method. The match algorithm based on AM  solves the registration problem that greater differences between different source images are existed on gray and characteristic. At the same time  the adoption of combining the intelligent optimization algorithms significantly improves the searching efficiency and convergence speed of the algorithms  and the registration result has higher accuracy and stability  which builds up solid foundation for different source image fusion. The method in this paper has a magnificent effect  and is easy for application and very suitable for engineering use. 2010 IEEE.  
Sample surveying to estimate the mean of a heterogeneous surface: reducing the error variance through zoning 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE, 2010, 卷号: 24, 期号: 4, 页码: 523-543
Wang, Jinfeng(王劲峰); Haining, Robert; Cao, Zhidong
收藏  |  浏览/下载:221/60  |  提交时间:2011/06/10