SADDLE

作品数：136被引量：152H指数：6
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相关领域：理学更多>>
相关作者：张从军刘溪董欣韩茂安郝林更多>>
相关机构：东南大学北京积水潭医院淮北煤炭师范学院哈尔滨工业大学更多>>
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相关基金：国家自然科学基金广东省自然科学基金中国博士后科学基金国家重点基础研究发展计划更多>>
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Global Stability and Bifurcation Analysis of a Cholera Transmission Model
《数学理论与应用》2024年第4期70-87,共18页Liu Qiumei Liu Lingling Xu Fang 
supported by the National Natural Science Foundation of China(No.12171337);the Central Government Guided Local Science and Technology Development Projects(No.2024ZYD0059);the Natural Science Foundation of Sichuan Province(No.2022NSFSC0529);the Open Research Fund Program of Data Recovery Key Laboratory of Sichuan Province(No.DRN2405)。
This paper investigates the stability and bifurcation phenomena of a cholera transmission model in which individuals who have recovered from the disease may become susceptible again.The threshold for determining disea...
关键词：Cholera model Basic reproductive number Global asymptotic stability Saddle-node Transcritical bifurcation 
Catalytic Asymmetric Synthesis of Inherently Chiral Saddle- Shaped Dibenzo[b,fI[1,5]diazocines
《Chinese Journal of Chemistry》2024年第17期1953-1959,共7页Jinmiao Zhou Mengyao Tang Xiaoyu Yang 
The authors gratefully acknowledge NSFC(grant nos.22222107,22171186);China Postdoctoral Science Foundation(2023M742365);Postdoctoral Fellowship Program of CPSF(GZC20231671);ShanghaiTech University start-up funding for financial support.Prof.Guangxin Liang was acknowledged for sharing the optical rotation polarimeter,and Mr.Huanchao Gu was acknowledged for the assistance with X-ray crystallographic analysis;support from Analytical Instrumentation Center(#SPST-AIC10112914),SPST,ShanghaiTech University.
Dibenzo[b,fi[1,5]diazocines are a class of eight-membered heterocycles,which exhibit unique rigid saddle-shaped structure and possess inherent chirality.In this study,we report a convenient and straightforward method ...
关键词：Dibenzo[b f][1 5]diazocines Saddle-shaped inherent chirality ORGANOCATALYSIS Asymmetric catalysis Medium-ring compounds Cooperativecatalysis Chiral phosphoricacids 
Probabilistic Error Estimate for Numerical Discretization of High-Index Saddle Dynamics with Inaccurate Models
《Annals of Applied Mathematics》2024年第1期1-20,共20页Lei Zhang Pingwen Zhang Xiangcheng Zheng 
supported by the National Natural Science Foundation of China(Nos.12225102,T2321001,12288101 and 12301555);the National Key R&D Program of China(Nos.2021YFF1200500 and 2023YFA1008903);the Taishan Scholars Program of Shandong Province(No.tsqn202306083).
We prove probabilistic error estimates for high-index saddle dynamics with or without constraints to account for the inaccurate values of the model,which could be encountered in various scenarios such as model uncerta...
关键词：Saddle point saddle dynamics solution landscape Gaussian process prob-abilistic error estimate 
Error Estimate for Semi-implicit Method of Sphere-Constrained High-Index Saddle Dynamics被引量：1
《Chinese Annals of Mathematics,Series B》2023年第5期765-780,共16页Lei ZHANG Pingwen ZHANG Xiangcheng ZHENG 
supported by the National Natural Science Foundation of China(Nos.12225102,12050002,12288101,12301555);the National Key R&D Program of China(No.2021YFF1200500);the Taishan Scholars Program of Shandong Province。
The authors prove error estimates for the semi-implicit numerical scheme of sphere-constrained high-index saddle dynamics,which serves as a powerful instrument in finding saddle points and constructing the solution la...
关键词：Saddle point Constrained saddle dynamics Solution landscape Semiimplicit Numerical analysis 
Discretization and index-robust error analysis for constrained high-index saddle dynamics on the high-dimensional sphere被引量：3
《Science China Mathematics》2023年第10期2347-2360,共14页Lei Zhang Pingwen Zhang Xiangcheng Zheng 
supported by National Natural Science Foundation of China(Grant Nos.12225102,12050002 and 12288101);the National Key Research and Development Program of China(Grant No.2021YFF1200500).
We develop and analyze numerical discretization to the constrained high-index saddle dynamics,the dynamics searching for the high-index saddle points confined on the high-dimensional unit sphere.Compared with the sadd...
关键词：saddle dynamics saddle point solution landscape error estimate index-robust 
A method for calculating strand tension in the anchor span of a suspension bridge considering the rotation of a splay saddle
《High-Speed Railway》2023年第1期56-62,共7页Xuejin Huo Jia Chen Dongxu Wang Li Zhu 
This paper reports a method for strand tension in anchor spans considering rotation.A kind of co-moved coordinate system,a saddle local coordinate system,was set up.This system implemented the rotation of the splay sa...
关键词：Suspension bridge Anchor span Strand tension ROTATION 
Investigating the fission dynamics of the following neutron shell closed nuclei within a stochastic dynamical approach:^(210)Po,^(212)Rn,and ^(213)Fr
《Chinese Physics C》2023年第3期127-137,共11页Divya Arora P.Sugathan A.Chatterjee 
D.A.acknowledges the financial support from the University Grants Commission(UGC),Government of India,received in the form of a research fellowship(Ref.No.19/06/2016/(i)EU-V,Sr.No.2061651303)。
The dissipative dynamics of nuclear fission is a well confirmed phenomenon that can be either described by a Kramers-modified statistical model or by a dynamical model employing the Langevin equation.Although dynamica...
关键词：FUSION-FISSION nuclear dissipation dynamical model neutron shell closure saddle shell corrections 
Transition pathways in Cylinder-Gyroid interface
《Communications in Computational Physics》2022年第8期810-828,共19页Xiaomei Yao Jie Xu Lei Zhang 
supported by the National Natural Science Foundation of China No.12001524 and and No.12288201;supported by the National Natural Science Foundation of China No.12050002 and the National Key R&D Program of China 2021YFF1200500.
When two distinct ordered phases contact,the interface may exhibit rich and fascinating structures.Focusing on the Cylinder-Gyroid interface system,transition pathways connecting various interface morphologies are stu...
关键词：Landau-Brazovskii model Cylinder-Gyroid interface saddle dynamics transition state transition pathway 
A New Saddle-Shaped Aza Analog of Tetraphenylene: Atroposelective Synthesis and Application as a Chiral Acylating Reagent被引量：3
《CCS Chemistry》2022年第9期2897-2905,共9页Yu Luo Sidi Cheng Yan Peng Xilong Wang Jing Li Chunfang Gan Shuang Luo Qiang Zhu 
the National Natural Science Foundation of China(nos.21772198,21871268,and 22071250);the Frontier Research Program of Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory)(no.2018GRZ110105017);the Natural Science Foundation of Guangdong Province of China(no.2020A1515011428);the“BAGUI Scholar”Program of Guangxi Province of China,and SKLRD Open Project(no.SKLRD-Z-202014)for financial support;the Guangzhou Branch of the Supercomputing Center of CAS for support.
(Z)-7-Aryl-5-acyldibenzo[e,g][1,4]diazocin-6(5H)-one,a unique saddle-shaped bridged biaryl containing synchronized aryl–aryl and N-aryl stereogenic axes,was constructed for the first time in good yields with up to 96...
关键词：diazocin tetraphenylene analog atroposelective synthesis double isocyanide insertion palladium catalysis 
鄂尔多斯人崇尚马鞍礼俗的传承
《蒙古学研究（蒙文版）》2022年第2期95-98,122,124,共6页伟林花 
With the etiquette and customs,the nomads have cherished the saddle as a daily necessity since ancient times.In the process of historical development,this custom has been constantly innovated on the basis of tradition...
关键词：SADDLE adapted PROPERTY 
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