POINCARE

作品数：176被引量：168H指数：6
导出分析报告
相关领域：理学自动化与计算机技术更多>>
相关作者：韩卫星赵育林汤海林程新明蔡建平更多>>
相关机构：华南理工大学西安交通大学福州大学中国科学院更多>>
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福建省自然科学基金南京信息工程大学科研基金更多>>
-
在结果中检索

检索结果分析

结果分析中...
共 条 记 录，以下是1-10
全选清除导出
参考文献引证文献引用追踪
视图：
排序：
High-dimensional Poincarébeams generated through cascaded metasurfaces for high-security optical encryption被引量：1
《PhotoniX》2024年第1期499-511,共13页Jitao Ji Chen Chen Jiacheng Sun Xin Ye Zhizhang Wang Jian Li Junyi Wang Wange Song Chunyu Huang Kai Qiu Shining Zhu Tao Li 
provided by National Key Research and Development Program of China(2022YFA1404301);National Natural Science Foundation of China(Nos.62325504,62305149,92250304,62288101);Dengfeng Project B of Nanjing University;the micro-fabrication center of the National Laboratory of Solid State Microstructures(NLSSM)for technique support。
Optical encryption plays an increasingly important role in the field of information security owing to its parallel processing capability and low power consumption.Employing the ultrathin metasurfaces in optical encryp...
关键词：Poincare beams Cascaded metasurfaces Optical encryption 
四维Lotka-Volterra竞争模型的异宿环以及Hopf分岔分析
《杭州电子科技大学学报（自然科学版）》2024年第3期72-78,共7页贾安凡 孙伟刚 
国家自然科学基金资助项目(61673144)。
Lotka-Volterra竞争模型的瞬态动力学与异宿环结构密切相关,同时对理解物种之间相互竞争的无赢家竞争现象起着重要的作用。为了研究Lotka-Volterra竞争模型的异宿环拓扑结构,通过设计Matlab程序确定了四维模型的系统参数;在此参数下发...
关键词：异宿环 极限环 HOPF分岔 Poincare规范形 
Operator Splitting and Local Time-Stepping Methods for Transport Problems in Fractured Porous Media
《Communications in Computational Physics》2023年第10期1215-1246,共32页Phuoc-Toan Huynh Yanzhao Cao Thi-Thao-Phuong Hoang 
partially supported by the US National Science Foundation under grant number DMS-1912626.
This paper is concerned with efficient numerical methods for the advectiondiffusion equation in a heterogeneous porous medium containing fractures.A dimensionally reduced fracture model is considered,in which the frac...
关键词：Domain decomposition reduced fracture model operator splitting nonconforming time grids time-dependent Steklov-Poincare operator optimized Schwarz waveform relaxation 
Reconstruction of skin friction topology in complex separated flows
《Advances in Aerodynamics》2023年第1期579-613,共35页Tianshu Liu 
This paper describes a theoretical method for reconstruction of the skin friction topology in complex separated flows,which is developed based on the exact relation between skin friction and surface pressure through t...
关键词：Skin friction Surface pressure Boundary enstrophy flux Flow separation TOPOLOGY Inverse problem Variational method Euler-Lagrange equation Taylor-series-expansion solution Navier-Stokes equations Poincare-Bendixson index formula Shock-wave/boundary-layer interaction Pressure sensitive paint Aerodynamics 
芬斯勒流形上的两个重要不等式
《西南师范大学学报（自然科学版）》2023年第1期32-39,共8页程新跃 张希滨 
国家自然科学基金项目(11871126);重庆师范大学研究基金项目(17XLB022)。
主要研究了芬斯勒几何中的Poincare-Lichnerowicz不等式和Laplacian第一特征值的下界估计.通过使用积分型Bochner公式及其相关的不等式,在加权Ricci曲率RicN有正下界的条件下得到了两个重要的不等式,改进了芬斯勒流形上的两个已知的重...
关键词：芬斯勒流形 加权Ricci曲率 Bochner公式 Poincare-Lichnerowicz不等式 第一特征值 
PHASE PORTRAITS OF THE LESLIE-GOWER SYSTEM
《Acta Mathematica Scientia》2022年第5期1734-1742,共9页Jaume LLIBRE Claudia VALLS 
supported by the Agencia Estatal de Investigacion grant PID2019-104658GB-I00;the H2020 European Research Council grant MSCA-RISE-2017-777911;partially supported by FCT/Portugal through CAMGSD,IST-ID,projects UIDB/04459/2020 and UIDP/04459/2020.
In this paper we characterize the phase portraits of the Leslie-Gower model for competition among species.We give the complete description of their phase portraits in the Poincarédisc(i.e.,in the compactification of ...
关键词：predator-prey models Leslie-Gower system Poincare compactification global phaseportraits 
Arbitrary manipulations of focused higher-order Poincare beams by a Fresnel zone metasurface with alternate binary geometric and propagation phases被引量：1
《Photonics Research》2022年第4期1117-1126,共10页XIANGYU ZENG YUQIN ZHANG MANNA GU ZIJUN ZHAN RUIRUI ZHANG YU ZHANG RUI SUN CHANGWEI HE CHUNXIANG LIU CHUANFU CHENG 
National Natural Science Foundation of China(11904212,12004215,62175134).
The manipulation of high-quality vector beams(VBs)with metasurfaces is an important topic and has potential for classical and quantum applications.In this paper,we propose a Fresnel zone(FZ)metasurface with metallic n...
关键词：POINCARE ALTERNATE FRESNEL 
基于Poincare Plot和LSTM的胎心率分类算法被引量：1
《中国医疗器械杂志》2021年第3期250-255,共6页叶明珠 邵李焕 邓艳军 
浙江省基础公益研究计划项目(LGG19F010010)。
胎心率在母胎监护和胎儿健康检测中起着非常重要的作用。该研究对胎心率信号进行研究,提出了一种基于庞加莱图(Poincare Plot),和长短期记忆网络(LSTM)的胎心率分类算法,实现胎心率异常情况的高性能分类。首先采用插值法对捷克技术大学...
关键词：胎心率分类 庞加莱图 长短期记忆网络 SqueezeNet 
Arbitrary polarization conversion dichroism metasurfaces for all-in-one full Poincare sphere polarizers被引量：20
《Light(Science & Applications)》2021年第2期208-216,共9页Shuai Wang Zi-Lan Deng Yujie Wang Qingbin Zhou Xiaolei Wang Yaoyu Cao Bai-Ou Guan Shumin Xiao Xiangping Li 
supported by the National Key R&D Program of China(2018YFB1107200);the National Natural Science Foundation of China(NSFC)(Grants 62075084,61522504,61420106014,11734012,and 11574218);the Guangdong Provincial Innovation and Entrepreneurship Project(Grant 2016ZT06D081);the Guangdong Basic and Applied Basic Research Foundation(2020A1515010615);the Fundamental Research Funds for the Central Universities(21620415);the China Scholarship Council(201906785011).
The control of polarization,an essential property of light,is of broad scientific and technological interest.Polarizers are indispensable optical elements for direct polarization generation.However,arbitrary polarizat...
关键词：surface. POINCARE ARBITRARY 
The McCoy Condition on Skew Poincaré-Birkhoff-Witt Extensions
《Communications in Mathematics and Statistics》2021年第1期1-21,共21页Armando Reyes Camilo Rodriguez 
Research is supported by Grant HERMES CODE 30366;Departamento de Matemati-cas,Facultad de Ciencias,Universidad Nacional de Colombia,Sede Bogota.
In this paper,we study the notion of McCoy ring over the class of non-commutative rings of polynomial type known as skew Poincare–Birkhoff–Witt extensions.As a consequence,we generalize several results about this no...
关键词：McCoy ring Reversible ring Semicommutative ring Zip ring Skew Poincare–Birkhoff–Witt extension 
全选清除导出
共18页<12345678910>
检索报告 对象比较 聚类工具 使用帮助 返回顶部