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Newly assimilated carbon allocation in grassland communities under different grazing enclosure times 期刊论文
BIOLOGY AND FERTILITY OF SOILS, 2021, 卷号: 57, 期号: 4, 页码: 563-574
作者:  Bai, Xuejuan;  Yang, Xuan;  Zhang, Shumeng;  An, Shaoshan
收藏  |  浏览/下载:50/0  |  提交时间:2021/06/10
Methane emissions in grazing systems in grassland regions of China: A synthesis 期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 654, 页码: 662-670
作者:  Tang, Shiming;  Ma, Lei;  Wei, Xiaoting;  Tian, Dashuan;  Wang, Bojie
收藏  |  浏览/下载:67/0  |  提交时间:2019/05/22
Global dynamics of a mechanical system with dry friction 期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2018, 卷号: 265, 页码: 5490-5519
作者:  Chen, Hebai;  Duan, Sen;  Tang, Yilei;  Xie, Jianhua
收藏  |  浏览/下载:2/0  |  提交时间:2019/11/21
Urbanization and environmental policy effects on the future availability of grazing resources on the Mongolian Plateau: Modeling socio-environmental system dynamics 期刊论文
ENVIRONMENTAL SCIENCE & POLICY, 2017
Allington, Ginger R. H.; Li, Wei; Brown, Daniel G.
收藏  |  浏览/下载:2/0  |  提交时间:2017/12/03
Discrete-in-time feedback control of near-grazing dynamics in the two-degree-of-freedom vibro-impact system with a clearance 期刊论文
Nonlinear Dynamics, 2017, 卷号: Vol.87 No.2, 页码: 1127-1137
作者:  Xu, HD;  Yin, S;  Wen, GL;  Zhang, SJ;  Lv, ZY
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/31
Complexity analysis of network-based dynamical systems 期刊论文
journal of systems science complexity, 2011
Zhang, Guofeng; Wang, Long; Chen, Tongwen
收藏  |  浏览/下载:3/0  |  提交时间:2015/11/12
Compact TEM/sub 00/ grazing-incidence Nd:GdVO/sub 4/ laser using a folded cavity 期刊论文
2010, 2010
He, F.; Gong, M.; Huang, L.; Liu, Q.; Wang, Q.; Yan, X.
收藏  |  浏览/下载:2/0
1D-KBA microscope using double-periodic multilayer (EI CONFERENCE) 会议论文
Advances in X-Ray/EUV Optics and Components IV, August 3, 2009 - August 5, 2009, San Diego, CA, United states
Mu B.; Wang Z.; Yi S.; Zhu J.; Wang X.; Jiang L.; Huang Q.; Bai Y.
收藏  |  浏览/下载:9/0  |  提交时间:2013/03/25
To study the action of shock wave in CH target  one-dimensional grazing incidence KBA microscope for 4.75keV energy was set up. Because of strong absorption in air  4.75keV energy microscope can just work in vacuum. Accordingly  the alignment and assemblage will be very complicated and difficult. A special multilayer method  using double periodic multilayer  was proposed to solve this problem. This multilayer has high reflectivity not only for 4.75keV X-rays but also for 8keV X-rays at the same grazing incidence angle. It means 1D-KBA microscope has the same light trace for different working energies. Therefore  we can implement the alignment and assembly of 4.75keV system by the help of 8keV X-rays. Because 8keV X-rays is very easy produced by X-ray tube and has strong transmittability in air  the alignment and assemblage process became relatively easy. By now  we have finished the alignment experiment at 8keV and obtained imaging results. The performance is about 2-3m resolution in 250m field of view. It is coincide with the calculation. 2009 SPIE.  
Assessment of surface roughness by use of soft x-ray scattering (EI CONFERENCE) 会议论文
Soft X-Ray Lasers and Applications VIII, August 4, 2009 - August 6, 2009, San Diego, CA, United states
Yan-li M.; Yong-gang W.; Shu-yan C.; Bo C.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
A soft x-ray reflectometer with laser produced plasma source has been designed  which can work from wavelength 8nm to 30 nm and has high performance. Using the soft x-ray reflectometer above  the scattering light distribution of silicon and zerodur mirrors which have super-smooth surfaces could be measured at different incidence angle and different wavelength. The measurement when the incidence angle is 2 degree and the wavelength is 1 lnm has been given in this paper. A surface scattering theory of soft x-ray grazing incidence optics based on linear system theory and an inverse scattering mathematical model is introduced. The vector scattering theory of soft x-ray scattering also is stated in detail. The scattering data are analyzed by both the methods above respectively to give information about the surface profiles. On the other hand  both the two samples are measured by WYKO surface profiler  and the surface roughness of the silicon and zerodur mirror is 1.3 nm and 1.5nm respectively. The calculated results are in quantitative agreement with those measured by WYKO surface profiler  which indicates that soft x-ray scattering is a very useful tool for the evaluation of highly polished surfaces. But there still some difference among the results of different theory and WYKO  and the possible reasons of such difference have been discussed in detail. 2009 SPIE.  
Population dynamics and responses to management of plateau pikas Ochotona curzoniae 期刊论文
journal of applied ecology, 2007, 卷号: 44, 期号: 3, 页码: 615-624
作者:  Pech, Roger P.;  Jiebu;  Arthur, Anthony D.;  Zhang Yanming;  Hui, Lin
收藏  |  浏览/下载:12/0  |  提交时间:2009/12/07


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