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4篇 您的检索式:作者名="LIN Geping"
    题名 作者 年代 出处 被引量
1Underwater acoustic multipath sparse channel estimation via gridless relevance vector machine method显示文摘In the scenario of underwater acoustic sparse channel estimation with trainingsequences, grid points in the measuring matrix are caused by discretizing procedure. Estimatedaccuracy might not be guaranteed with the state-of-the-art methods when multipath delaysdon't exactly locate on the grid points. In this paper, we construct a gridless measuring matrixfor sparse channel estimation which contains an off-grid adjusting factor. The Relevance VectorMachine (RVM) algorithm is employed to estimate this factor. The numerical experiments fortwo different underwater channels are performed to testify the newly proposed method. Tileresults demonstrate that this method outperforms conventional ones in terms of estimatingerror and bit error rate, especially when the grid gets coarser.LIN Geping MA Xiaochuan YAN Shefeng JIANG Li 2016Chinese Journal of Acoustics2016,35,4:4
2Using the CENTURY model to assess the impact of land reclamation and management practices in oasis agriculture on the dynamics of soil organic carbon in the arid region of North-western China显示文摘Wenqiang Xu Xi Chen Geping Luo Qing Lin 2010Ecological Complexity2010,,1:1
3Low-cost and durable catalyst support for fuel cells: Graphite submicronparticles显示文摘Sheng Zhang Yuyan Shao Xiaohong Li Zimin Nie Yong Wang Jun Liu Geping Yin Yuehe Lin 2009Journal of Power Sources2009,,2:1
4The origins of kinetics hysteresis and irreversibility of monoclinic Li_(3)V_(2)(PO_(4))_(3)显示文摘Monoclinic Li_(2)V_(2)(PO_(4))_(3);is a promising cathode material with complex charge–discharge behavior.Previous structural investigation of this compound mainly focuses on local environments;while the reaction kinetics and the driving force of irreversibility of this material remain unclear.To fully understand the above issues,both the equilibrium and the non-equilibrium reaction routes have been systematically investigated in this study.Multiple characterization techniques including X-ray diffraction,variable temperature(spinning rate)and ex/in situ ^(7)Li,^(31)P solid state NMR have been employed to provide comprehensive insights into kinetics,dynamics,framework structure evolution and charge ordering,which is essential to better design and application of lithium transition metal phosphate cathodes.Our results suggest that the kinetics process between the non-equilibrium and the quasi-equilibrium delithiation pathways from Li_(2)V_(2)(PO_(4))_(3);to V_(2)(PO_(4))_(3);is related with a slow relaxation from two-site to one-site delithiation.More importantly,it has been demonstrated that the irreversibility in this system is not solely affected by cation and/or charge ordering/disordering,but mainly driven by framework structure distortion.Hua Huo Zeyu Lin Guiming Zhong Shuaifeng Lou Jiajun Wang Yulin Ma Changsong Dai Yueping Xiong Geping Yin Yong Yang 2022Journal of Energy Chemistry2022,31,4:0
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