Results 101 to 110 of about 1,124,071 (202)
针对传统辛几何模态分解(symplectic geometry mode decomposition, 简称SGMD)方法因嵌入维数选择依靠经验公式,导致出现信号模态混叠和过度分解的问题,提出了一种改进的辛几何模态分解(improved symplectic geometry mode decomposition, 简称ISGMD)方法。首先,通过计算原始信号的功率谱密度得到最大主峰的频率并设定嵌入维数区间,根据峭度准则筛选分解后的辛几何分量(symplectic geometry component,
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A link invariant from the symplectic geometry of nilpotent slices [PDF]
Paul Seidel, Ivan Smith
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The current methods for early fault diagnosis of rolling bearing have some flaws, such as poor fault feature information and insufficient fault feature extraction capability, which makes it challenging to guarantee fault diagnosis accuracy.
Wei Yuan +5 more
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$\mathbf {5 \times 5}$ -graded Lie algebras, cubic norm structures and quadrangular algebras
We study simple Lie algebras generated by extremal elements, over arbitrary fields of arbitrary characteristic. We show the following: (1) If the extremal geometry contains lines, then the Lie algebra admits a $5 \times 5$ -grading that can be ...
Tom De Medts, Jeroen Meulewaeter
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An early fault diagnosis method of gear based on improved symplectic geometry mode decomposition
Jian Cheng +4 more
semanticscholar +1 more source
Coisotropic rigidity and C0-symplectic geometry [PDF]
Vincent Humilière +2 more
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Lecture notes on the symplectic geometry of graded manifolds and higher Lie groupoids [PDF]
Miquel Cueca +2 more
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The symplectic geometry of a new kind of Siegel upper half space of order 2 (I) [PDF]
Tianqin Wang, Tianze Wang, Hongwen Lu
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