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检索条件"作者=xuwen zhang"
997 条 记 录,以下是81-90 订阅
排序:
HEINTZE-KARCHER INEQUALITY FOR ANISOTROPIC FREE BOUNDARY HYPERSURFACES IN CONVEX DOMAINS
arXiv
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arXiv 2023年
作者: Jia, Xiaohan Wang, Guofang Xia, Chao zhang, xuwen School of Mathematical Sciences Xiamen University Xiamen361005 China Mathematisches Institut Universität Freiburg Ernst-Zermelo-Str.1 Freiburg79104 Germany Institut Für Mathematik Goethe-Universität Robert-Mayer-Str.10 Frankfurt60325 Germany
In this paper, we prove an optimal Heintze-Karcher-type inequality for anisotropic free boundary hypersurfaces in general convex domains. The equality is achieved for anisotropic free boundary Wulff shapes in a convex... 详细信息
来源: 评论
HEINTZE-KARCHER INEQUALITY AND CAPILLARY HYPERSURFACES IN A WEDGE
arXiv
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arXiv 2022年
作者: Jia, Xiaohan Wang, Guofang Xia, Chao zhang, xuwen School of Mathematics Southeast University Nanjing211189 China Mathematisches Institut Universität Freiburg Ernst-Zermelo-Str.1 Freiburg79104 Germany School of Mathematical Sciences Xiamen University Xiamen361005 China
In this paper, we utilize the method of Heintze-Karcher to prove a "best" version of Heintze-Karcher-type inequality for capillary hypersurfaces in the half-space or in a wedge. One of new crucial ingredient...
来源: 评论
Manginoids A-G: Seven Monoterpene-Shikimate-Conjugated Meroterpenoids with a Spiro Ring System from Guignardia mangiferae
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ORGANIC LETTERS 2017年 第21期19卷 5956-5959页
作者: Chen, Keliang zhang, xuwen Sun, Weiguang Liu, Junjun Yang, Jing Chen, Chunmei Liu, Xiulan Gao, Limin Wang, Jianping Li, Hua Luo, Zengwei Xue, Yongbo Zhu, Hucheng zhang, Yonghui Huazhong Univ Sci & Technol Tongji Med Coll Sch Pharm Hubei Key Lab Nat Med Chem & Resource Evaluat Wuhan 430030 Hubei Peoples R China Huazhong Univ Sci & Technol Tongji Med Coll Tongji Hosp Wuhan 430030 Hubei Peoples R China Humanwell Healthcare Grp Co Ltd Wuhan 430073 Hubei Peoples R China Chinese Acad Sci Kunming Inst Bot State Key Lab Phytochem & Plant Resources West Ch Kunming 650204 Yunnan Peoples R China
Manginoids A-G (1-7), seven monoterpene-shikimate-conjugated meroterpenoids with a spiro ring system, were isolated from Guignardia mangiferae. Compounds 1-4 are four isomers with epimeric and double-bond isomeric fea... 详细信息
来源: 评论
ALEXANDROV’S THEOREM FOR ANISOTROPIC CAPILLARY HYPERSURFACES IN THE HALF-SPACE
arXiv
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arXiv 2022年
作者: Jia, Xiaohan Wang, Guofang Xia, Chao zhang, xuwen School of Mathematical Sciences Xiamen University Xiamen361005 China Mathematisches Institut Universität Freiburg Ernst-Zermelo-Str.1 Freiburg79104 Germany
In this paper, we show that any embedded capillary hypersurface in the half-space with anisotropic constant mean curvature is a truncated Wulff shape. This extends Wente’s result [32] to the anisotropic case and He-L... 详细信息
来源: 评论
A CHARACTERIZATION OF CAPILLARY SPHERICAL CAPS BY A PARTIALLY OVERDETERMINED PROBLEM IN A HALF BALL
arXiv
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arXiv 2023年
作者: Jia, Xiaohan Lu, Zheng Xia, Chao zhang, xuwen School of Mathematics Southeast University Nanjing211189 China School of Mathematical Sciences Xiamen University Xiamen361005 China Mathematisches Institut Albert-Ludwigs-Universität Freiburg Freiburg im Breisgau79104 Germany Institut für Mathematik Goethe-Universität Frankfurt60325 Germany
In this note, we study a Serrin-type partially overdetermined problem proposed by Guo-Xia (Calc. Var. Partial Differential Equations 58: no. 160, 2019. https://***/10.1007/s00526-019-1603-3), and prove a rigidity resu... 详细信息
来源: 评论
基于DSP处理的科里奥利力质量流量计设计
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石油机械 2005年 第3期33卷 28-30页
作者: 段凤秋 张徐文 江汉石油管理局仪表厂
利用科里奥利力原理, 研制的基于数字信号处理器 (DSP) 的科里奥利力质量流量计,可测量流体的密度、温度、瞬时质量流量和瞬时体积流量。该质量流量计主要针对信号处理中存在的问题, 采用数字滤波处理信号, 利用自相关和互相关的计算方... 详细信息
来源: 评论
RIGIDITY AND QUANTITATIVE STABILITY FOR PARTIALLY OVERDETERMINED PROBLEMS AND CAPILLARY CMC HYPERSURFACES
arXiv
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arXiv 2023年
作者: Jia, Xiaohan Lu, Zheng Xia, Chao zhang, xuwen School of Mathematics Southeast University Nanjing211189 China School of Mathematical Sciences Xiamen University Xiamen 361005 China Mathematisches Institut Albert-Ludwigs-Universität Freiburg 79104 Germany Institut für Mathematik Goethe-Universität Frankfurt60325 Germany
In this paper, we first prove a rigidity result for a Serrin-type partially overdetermined problem in the half-space, which gives a characterization of capillary spherical caps by the overdetermined problem. In the se... 详细信息
来源: 评论
Comparative analysis of three heating methods for natural gas hydrate production: Electric heating, steam injection, and hot water injection
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APPLIED THERMAL ENGINEERING 2025年 269卷
作者: zhang, Zhaobin Xu, Tao Li, Shouding Guo, Peng Li, Xiao Lu, Cheng Sun, Yiming Wang, Pingkang Qin, xuwen Chinese Acad Sci Inst Geol & Geophys Key Lab Deep Petr Intelligent Explorat & Dev Beijing 100029 Peoples R China Univ Chinese Acad Sci Coll Earth & Planetary Sci Beijing 100049 Peoples R China China Geol Survey China Aero Geophys Survey & Remote Sensing Ctr Nat Beijing 100083 Peoples R China Minist Nat Resources China Geol Survey Oil & Gas Resources Survey Beijing 100083 Peoples R China Natl Engn Res Ctr Gas Hydrate Explorat & Dev Guangzhou 510075 Guangdong Peoples R China
Natural gas hydrates are a promising and environmentally sustainable energy resource, but their commercial production remains challenging. External heating is crucial for improving production efficiency. In this study... 详细信息
来源: 评论
WILLMORE-TYPE INEQUALITY IN UNBOUNDED CONVEX SETS
arXiv
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arXiv 2024年
作者: Jia, Xiaohan Wang, Guofang Xia, Chao zhang, xuwen School of Mathematics Southeast University Nanjing211189 China Mathematisches Institut Universität Freiburg Ernst-Zermelo-Str.1 Freiburg79104 Germany School of Mathematical Sciences Xiamen University Xiamen361005 China
In this paper we prove the following Willmore-type inequality: On an unbounded closed convex set K ⊂ Rn+1 (n ≥ 2), for any embedded hypersurface Σ ⊂ K with boundary ∂Σ ⊂ ∂K satisfying a certain contact angle condit... 详细信息
来源: 评论
A High-Performance n-Type Thermoelectric Polymer from C-H/C-H Oxidative Direct Arylation Polycondensation
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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 2023年 第20期62卷 e202219262-e202219262页
作者: Shi, Yibo zhang, xuwen Du, Tian Han, Yang Deng, Yunfeng Geng, Yanhou Tianjin Univ Collaborat Innovat Ctr Chem Sci & Engn Tianjin Sch Mat Sci & Engn Tianjin Key Lab Mol Optoelect Sci Tianjin 300072 Peoples R China Tianjin Univ Joint Sch Natl Univ Singapore & Tianjin Univ Int Campus Fuzhou 350207 Peoples R China
n-Type conjugated polymers (CPs) are crucial in the applications of organic electronics. Direct coupling of electron-deficient C-H monomer via selective C-H activation, namely C-H/C-H oxidative direct arylation polyco... 详细信息
来源: 评论