云南高校图书馆联盟文献共享服务平台- QUADRILATERAL

QUADRILATERAL: 作品数：74被引量：98H指数：5; 导出分析报告; 相关领域：理学更多>>; 相关作者：刘轩舒适郭晓东孙志刚周超羡更多>>; 相关机构：安徽工程大学湘潭大学华中科技大学郑州大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划高等学校学科创新引智计划国家教育部博士点基金更多>>

Star-quadrilateral Ramsey Number and Beyond: 《数学进展》2025年第2期292-314,共23页CHEN Yaojun ZHANG Xuemei ZHANG Yanbo; supported by NSFC(Nos.12161141003,11931006);supported by NSFC(Nos.11801520,12171436,12271489);supported by NSFC(No.11601527)。; For k given graphs H_1,...,H_k with k≥2,the k-color Ramsey number R(H_(1),...,H_(k)) represents the minimum integer N with the following property:if the edges of the complete graph K_(N) are colored with k colors,the...; 关键词：multicolor Ramsey number polarity graph QUADRILATERAL STAR WHEEL BOOK

Two New Nonconforming Quadrilateral Finite Element Methods for the Brinkman Problem: 《Journal of Mathematical Research with Applications》2025年第2期243-259,共17页Hexin NIU Xinchen ZHOU; Supported by the National Natural Science Foundation of China(Grant No.12201254)。; In this paper, two new efficient fully nonconforming polynomial finite element methods on arbitrary convex quadrilaterals are constructed to solve the Brinkman problem. Both elements have 12 local degrees of freedom a...; 关键词：Nonconforming finite element polynomial shape functions quadrilateral meshes uniform convergence

The Number of Boundary H-points of Convex H-quadrilateral: 《数学进展》2025年第1期177-186,共10页WEI Xianglin ZHU Weili; Supported by NSFC(No.12271139)。; An H-polygon is a polygon with corners in the set of vertices of a tiling of R~2 by regular hexagons of unit edge.It is known that any H-triangle with exactly k interior H-points can have at most 3k+7 boundary H-point...; 关键词：discrete geometry regular hexagonal tiling H-quadrilateral H-point

Isolated quadrilateral plate fracture with central hip dislocation after epileptic seizure in a postpartum patient:A case report: 《Chinese Journal of Traumatology》2024年第6期410-413,共4页Jana Gulija Tomislav Zigman Ivan Dobric Dino Bobovec Nadomir Gusic; Isolated quadrilateral plate fractures are extremely rare and their treatment is complex.The postpartum period and recent caesarean section additionally increase already significant risks of surgical treatment.Modifie...; 关键词：PELVIS ACETABULUM Postpartum period TRAUMA Surgical traumatology

Tilings of the Sphere by Congruent Quadrilaterals I:Edge Combination a^(2)bc: 《Chinese Annals of Mathematics,Series B》2024年第5期733-766,共34页Yixi LIAO Pinren QIAN Erxiao WANG Yingyun XU; supported by the Key Projects of Zhejiang Natural Science Foundation(No.LZ22A010003);ZJNU Shuang-Long Distinguished Professorship Fund(No.YS304319159)。; Edge-to-edge tilings of the sphere by congruent a^(2)bc-quadrilaterals are classified as 3 classes:(1)A 1-parameter family of quadrilateral subdivisions of the octahedron with24 tiles,and a flip modification for one s...; 关键词：Spherical tiling QUADRILATERAL Classification Earth map tiling SUBDIVISION

关于quadrilateral plate/surface/area中文命名为四边体的专家共识: 《中华骨与关节外科杂志》2024年第9期781-785,共5页中华医学会骨科学分会中国医师协会骨科分会骨盆髋臼学组中国医疗保健国际交流促进会骨科分会骨盆髋臼损伤学部郭晓东侯志勇樊仕才薛沛然陈开放陈嘉楠鄢冬; Quadrilateral plate/surface/area均指髋臼窝内侧的四边形解剖部位,目前其中文名称主要是基于英文翻译,包括“四方区”“四方体”“四边区”“四边体”“方形区”等多个名称。中文名称不统一不利于病历书写、文献检索及学术交流。为了...; 关键词：四边体髋臼窝专家共识

Multi-objective constructal design for quadrilateral heat generation body based on thermal-entransy theory and NSGA-Ⅱ: 《Science China(Technological Sciences)》2024年第9期2777-2786,共10页CHEN LinGen ZHU HongWei GE YanLin SHI ShuangShuang FENG HuiJun; supported by the National Natural Science Foundation of China(Grant No.52171317)。; Based on thermal-entransy theory, the multi-objective constructal design of quadrilateral heat generation body(HGB) with similar shapes of leaves is studied further. The relationship between the aspect ratio of quadri...; 关键词：thermal-entransy theory constructal theory heat conduction quadrilateral heat generation body composite function NSGA-Ⅱ

CONVERGENCE ANALYSIS OF NONCONFORMING QUADRILATERAL FINITE ELEMENT METHODS FOR NONLINEAR COUPLED SCHRODINGER-HELMHOLTZ EQUATIONS: 《Journal of Computational Mathematics》2024年第4期979-998,共20页Dongyang Shi Houchao Zhang; supported by the National Natural Science Foundation of China(Grant No.12071443);by the Key Scientific Research Projects of Henan Colleges and Universities(Grant No.20B110013).; The focus of this paper is on two novel linearized Crank-Nicolson schemes with nonconforming quadrilateral finite element methods(FEMs)for the nonlinear coupled Schrodinger-Helmholtz equations.Optimal L^(2) and H^(1) ...; 关键词：Schrodinger-Helmholtz equations Nonconforming FEMs Linearized Crank-Nicolson scheme Optimal error estimates

Feature Preserving Parameterization for Quadrilateral Mesh Generation Based on Ricci Flow and Cross Field: 《Computer Modeling in Engineering & Sciences》2023年第10期843-857,共15页Na Lei Ping Zhang Xiaopeng Zheng Yiming Zhu Zhongxuan Luo; supported by NSFC Nos.61907005,61720106005,61936002,62272080.; We propose a newmethod to generate surface quadrilateralmesh by calculating a globally defined parameterization with feature constraints.In the field of quadrilateral generation with features,the cross field methods a...; 关键词：Quadrilateral mesh feature preserving Ricci flow cross field

New Ranking of Generalized Quadrilateral Shape Fuzzy Number Using Centroid Technique: 《Intelligent Automation & Soft Computing》2023年第5期2253-2266,共14页A.Thiruppathi C.K.Kirubhashankar; The output of the fuzzy set is reduced by one for the defuzziﬁcation procedure.It is employed to provide a comprehensible outcome from a fuzzy inference process.This page provides further information about the defuzzi...; 关键词：Fuzzy numbers quadrilateral fuzzy number ranking methods fuzzy risk analysis

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