Results 41 to 50 of about 1,132,900 (94)
变时滞Cohen-Grossberg随机神经网络的矩指数稳定性
四川大学学报. 自然科学版, 2011 本文讨论了随机变时滞Cohen-Grossberg神经网络的矩指数稳定性.利用Ito公式、时滞微分不等式和神经网络的特征,作者导出了这类神经网络矩指数稳定性的代数条件并给出了一个说明性实例.
牛健人, 张子芳, 徐道义, 邓瑾
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Developing multifunctional luminescent materials with tunable spectra is crucial for plant lighting and information–security applications. To address the critical requirement of plant photosynthesis for blue and red spectral components, a novel lead‐free double perovskite Cs2NaGdCl6: Sb3+, Pr3+ phosphor was designed and synthesized via a ...
Huangyao Chen +7 more
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多重时变时滞的Cohen-Grossberg神经网络的指数稳定性(英文)
四川大学学报. 自然科学版, 2004 研究了多重时变时滞的Cohen Grossberg神经网络的指数稳定性.得到了平衡点存在以及指数稳定的充分条件.这些条件相比前人文章具有限制更少,更容易验证的特点.
徐道义, 邓瑾, 杨志春, 曾永福
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永磁同步电机混沌系统的单输入反馈全局指数稳定控制 [PDF]
, 2019 针对永磁同步电机混沌系统,结合Lyapunov稳定性与比较原理理论,分别对参数确定和参数不确定的永磁同步电机混沌系统提出一种单输入线性反馈全局指数稳定控制器.该控制器不仅结构简单,而且可以通过调整指数收敛速率,实现永磁同步电机混沌系统的全局指数稳定控制.分别对参数确定与参数不确定的永磁同步电机混沌系统进行数值模拟,进一步验证了所提方案的有效性.福建省教育厅中青年教师教育科研项目(JAT170091)福建省自然科学青年基金(2019J05024)福州大学科研启动项目(XRC ...
林立雄, 彭侠夫, 黄国辉
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Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters
Functional Ecology, Volume 40, Issue 5, Page 1443-1460, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang +4 more
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四川大学学报. 自然科学版, 2008 利用常数变易法以及对线性脉冲系统Cauchy矩阵的指数估计,作者获得了一类含不确定参数的脉冲积分微分系统鲁棒指数稳定性的充分条件,并给出了其指数收敛率满足的代数条件.
郭庆义, 徐利光
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HIERARCHICAL PRECARITY: Dance Hosting, Labor Struggles, and Masculine Insecurities in China
Cultural Anthropology, Volume 41, Issue 2, Page 376-401, May 2026.ABSTRACT Young Chinese male migrant workers partner with middle‐aged women in dance halls, and sell intimacy and romantic relationships in everyday locations as “dance hosts.” Dance hosts experience considerable job precarity and masculine insecurities.
JUAN CHEN
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, 1958 目录第一章 基本概念和定义1. 问题的提法2. 稳定的定义3. 干扰运动的微分方程4. 按李雅普诺夫意义的稳定以及其他一些稳定的定义5. 关于解决稳定问题的方法第二章 对于定常运动的李雅普诺夫第二种方法6. 基本定义7. 函数的定号性及变号性的准则8. 定号的函数的几何解释9. 关于运动稳定的李雅普诺夫第一定理10. 关于运动稳定的李雅普诺夫第二定理11. 前述定理的几何解释12. 前述定理应用举例13. 关于不稳定的李雅普诺夫第一定理14.
(苏)马尔金著, 解伯民等译
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四川大学学报. 自然科学版, 2010 本文在Jung的思想启发下证明了一类指数型函数方程的超稳及其限制区域上超稳.同时,在Takahasi,Miura,Takagi的文章基础上证明了两类更一般的指数型函数方程在限制区域上的Hyers-Ulam稳定性.
徐娟, 张和发
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lightweight and lead‐free radiation shielding materials remain urgently needed. This work designed a fluorite high‐entropy oxide (FHEO) system through a combined computational–experimental route. Density functional theory based on special quasi‐random structures was used to identify thermodynamically stable fluorites from a wide compositional ...
Xiangjie Duan +9 more
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