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检索条件"主题词=fast algorithm"
1072 条 记 录,以下是151-160 订阅
排序:
An Efficient Numerical algorithm for the Model Describing the Competition Between Super- and Sub-diffusions Driven by Fractional Brownian Sheet Noise
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JOURNAL OF SCIENTIFIC COMPUTING 2023年 第1期96卷 1-24页
作者: Sun, Jing Nie, Daxin Deng, Weihua Lanzhou Univ Sch Math & Stat Gansu Key Lab Appl Math & Complex Syst Lanzhou 730000 Peoples R China
Super- and sub-diffusions are two typical types of anomalous diffusions in the natural world. In this work, we discuss the numerical scheme for the model describing the competition between super- and sub-diffusions dr... 详细信息
来源: 评论
fast algorithms for integral formulations of steady-state radiative transfer equation
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JOURNAL OF COMPUTATIONAL PHYSICS 2019年 380卷 191-211页
作者: Fan, Yuwei An, Jing Ying, Lexing Stanford Univ Dept Math Stanford CA 94305 USA Stanford Univ Inst Computat & Math Engn Stanford CA 94305 USA
We investigate integral formulations and fast algorithms for the steady-state radiative transfer equation with isotropic and anisotropic scattering. When the scattering term is a smooth convolution on the unit sphere,... 详细信息
来源: 评论
Sonography in Pre-clinical Care
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DEUTSCHE MEDIZINISCHE WOCHENSCHRIFT 2024年 第15期149卷 912-924页
作者: Knott, Dominik Siegl, Lutz Siegl, Katharina Bundeswehrkrankenhauses Berlin Zent Interdisziplinaren Notaufnahme Berlin Germany Bundeswehrkrankenhaus Zentrums Notfall & Rettungsmed Berlin Germany Bundeswehrkrankenhaus Klin Anasthesiol Intens Med Schmerztherapie & Notf Berlin Germany
"Have you had a sonogram yet?" is a question that is asked several times a day in clinical emergency medicine. Sonography is a quick and non-invasive way of looking into a person. It is now not only a valuab... 详细信息
来源: 评论
Sonography in the preclinical setting
NOTARZT
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NOTARZT 2024年 第1期40卷 31-43页
作者: Knott, Dominik Siegl, Lutz Siegl, Katharina Bundeswehr Hosp Berlin Gen Med Responsible Training Cent interdisciplinary emerge Berlin Germany Bundeswehr Hosp Berlin Ctr Emergency Rescue Med Berlin Germany Bundeswehr Hosp Berlin Clin Anesthesiol Intens Care Med Pain Therapy & Em Berlin Germany Bundeswehrkrankenhaus Berlin Klin X Scharnhorststr 13 D-10557 Berlin Germany
Preclinical ultrasound is another valuable tool in the repertoire of emergency medical and rescue service personnel. If the question is clear, it can quickly narrow down differential diagnoses and guide further treatm... 详细信息
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A structure preserving difference scheme with fast algorithms for high dimensional nonlinear space-fractional Schrodinger equations
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JOURNAL OF COMPUTATIONAL PHYSICS 2021年 425卷 109869-109869页
作者: Yin, Baoli Wang, Jinfeng Liu, Yang Li, Hong Inner Mongolia Univ Sch Math Sci Hohhot 010021 Peoples R China Inner Mongolia Univ Finance & Econ Sch Stat & Math Hohhot 010070 Peoples R China
We aim at analyzing a novel structure preserving difference scheme for the high dimensional nonlinear space-fractional Schrodinger equation. The temporal direction is discretized by the modified Crank-Nicolson scheme,... 详细信息
来源: 评论
Convergence and superconvergence analysis of finite element methods for nonlinear Ginzburg-Landau equation with Caputo derivative
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COMPUTATIONAL & APPLIED MATHEMATICS 2023年 第6期42卷 1-32页
作者: Chen, Fang Li, Meng Zhao, Yanmin Tang, Yifa Zhengzhou Univ Sch Math & Stat Zhengzhou 450001 Peoples R China Xuchang Univ Sch Sci Henan Joint Int Res Lab High Performance Computat Xuchang 461000 Peoples R China Chinese Acad Sci Acad Math & Syst Sci LSEC ICMSEC Beijing 100190 Peoples R China Univ Chinese Acad Sci Sch Math Sci Beijing 100049 Peoples R China
In this paper, we study and analyze the time fractional Ginzburg-Landau equation (FGLE) using finite element methods (FEMs) in space and L1 scheme in time. The unconditional optimal L-2-norm error estimates are obtain... 详细信息
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A fast stable accurate artificial boundary condition for the linearized Green-Naghdi system
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NUMERICAL algorithmS 2022年 第4期90卷 1437-1463页
作者: Pang, Gang Ji, Songsong Beihang Univ Sch Math Sci Beijing 102206 Peoples R China Peking Univ Coll Engn HEDPS CAPT & LTCS Beijing 100871 Peoples R China
In this paper, we use a fully discrete Crank-Nicolson scheme to solve the Cauchy problem for one-dimensional linearized Green-Naghdi system with fast convolution boundary condition which is derived through the Pade ap... 详细信息
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A fast Temporal Second Order Difference Scheme for the Fractional Sub-diffusion Equations on One Dimensional Space Unbounded Domain
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数学研究(英文) 2023年 第2期56卷 173-205页
作者: Ren-Jun Qi Zhi-Zhong Sun School of Mathematics Southeast UniversityNanjing 210096China
The numerical solution of the fractional sub-diffusion equations on one di-mensional space unbounded domain is *** on the high-order local artificial boundary conditions proposed in[Zhang W.,et al.,***.,2017,50(1):28-... 详细信息
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fast algorithm on Parameter Estimation of Wideband LFM Signal Based on Down-chirp and CS
Fast Algorithm on Parameter Estimation of Wideband LFM Signa...
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IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)
作者: Wang Kang Ye Wei Lao Guochao Wang Yong Equipment Acad Beijing Peoples R China
Compressed Sensing (CS) has been successfully applied to the parameter estimation of Linear Frequency Modulation (LFM) signal. Compared to the Nyquist sampling method, far less samples are needed to estimate the frequ... 详细信息
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TrendRank method for evaluating the importance of power grid nodes considering information network
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IET GENERATION TRANSMISSION & DISTRIBUTION 2023年 第3期17卷 539-550页
作者: Su, Qingyu Chen, Cong Li, Jian Northeast Elect Power Univ Sch Automat Engn Jilin Jilin Peoples R China
To ensure the stable operation of power systems, critical nodes need to be identified for key protection. The LeaderRank algorithm is a fast and accurate algorithm for identifying key nodes, but it has obvious inappro... 详细信息
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