27 hasil untuk "Li-Bin Liu"

Development and Capability of American Air-to-Air Missile in the Future

Li Bin, Liu Qi, Xu Yanke

Hangkong bingqi, Vol. 30 No. 2 · 2023 · Tionghoa · DOAJ Scopus

The demand-pull and the promotion of technological progress have been the principal line of air-to-air missile development.This paper reviews the development course of American air-to-air missiles, puts forward that the operational concept is the original point of missile design, and the level of…

Error analysis of a finite difference scheme on a modified graded mesh for a nonlocal-in-time parabolic equation

Shujun Liu; Li-Bin Liu; Xiaobing Bao

Networks and Heterogeneous Media, Vol. 20 No. 3 · 2025 · Inggris · DOAJ Scopus

In this paper, a novel numerical method is developed to solve a parabolic diffusion equation with a nonlocal-in-time operator. First, drawing upon the mesh equidistribution principle, a modified graded mesh along with its properties is introduced. Additionally, the spatial derivative is discretized…

Error estimate of BDF2 scheme on a Bakhvalov-type mesh for a singularly perturbed Volterra integro-differential equation

Li-Bin Liu; Yige Liao; Guangqing Long

Networks and Heterogeneous Media, Vol. 18 No. 2 · 2023 · Inggris · DOAJ Scopus

A singularly perturbed Volterra integro-differential problem is considered. The variable two-step backward differentiation formula is used to approximate the first-order derivative term and the trapezoidal formula is used to discretize the integral term. Then, the stability and convergence analysis…

Parameter uniform numerical method for a system of two coupled singularly perturbed parabolic convection-diffusion equations

Li-Bin Liu; Guangqing Long; Yong Zhang

Advances in Difference Equations, Vol. 2018 No. 1 · 2018 · Inggris · DOAJ

Abstract In this paper, we propose a numerical scheme for a system of two linear singularly perturbed parabolic convection-diffusion equations. The presented numerical scheme consists of a classical backward-Euler scheme on a uniform mesh for the time discretization and an upwind finite difference…

Significance of practicing “The three most valuable things in the future” for the physical and mental health of the elderly

LI Bin, LIU Ting-ting, HE Li

Jichu yixue yu linchuang, Vol. 42 No. 6 · 2022 · Tionghoa · DOAJ

“The three most valuable things in the future” are the health-related issues proposed by city government of Beijing in 2021: the first one is defined as “I am healthy, so I will not entangle on my family”; the second is “ I can make others healthy, so to realize the value of life”; the third thing…

An enhanced crossover strategy for the artificial lemming algorithm for engineering design optimization

Yan Zhong; Li-Bin Liu; Xiongfa Mai dkk.

Networks and Heterogeneous Media, Vol. 20 No. 5 · 2025 · Inggris · DOAJ Scopus

To address the limitations of the artificial lemming algorithm (ALA) in convergence accuracy and premature convergence, this paper proposes an enhanced variant, the cross-strategy-integrated artificial lemming algorithm (CALA). Specifically, the CALA integrates a linear inertia weight strategy to…

Convergence analysis of a second-order finite difference scheme on Shishkin-type meshes for a singularly perturbed Volterra integro-differential equation

Jiwen Chen; Li-Bin Liu; Guangqing Long dkk.

Networks and Heterogeneous Media, Vol. 20 No. 4 · 2025 · Inggris · DOAJ Scopus

In this paper, a novel second-order numerical method on a Shishkin mesh is constructed to solve a singularly perturbed Volterra integro-differential equation. The proposed numerical scheme employs a second-order backward differentiation formula (BDF2) for discretizing the first-order derivative…

A second order numerical method for a Volterra integro-differential equation with a weakly singular kernel

Li-Bin Liu; Limin Ye; Xiaobing Bao dkk.

Networks and Heterogeneous Media, Vol. 19 No. 2 · 2024 · Inggris · DOAJ Scopus

In this paper, a second finite difference method on a graded grid is proposed for a Volterra integro-differential equation with a weakly singular kernel. The proposed scheme is obtained by using the two-step backward differentiation formula (BDF2) to discretize the first derivative term and the…

Analysis of a finite difference scheme for a nonlinear Caputo fractional differential equation on an adaptive grid

Yong Zhang; Xiaobing Bao; Li-Bin Liu dkk.

AIMS Mathematics, Vol. 6 No. 8 · 2021 · Inggris · DOAJ Scopus

A nonlinear initial value problem whose differential operator is a Caputo derivative of order α with 0

An Optimal Adaptive Grid Method Based on L1 Scheme for a Nonlinear Caputo Fractional Differential Equation

Tao Yang; Li-Bin Liu; Xiaobing Bao dkk.

Fractal and Fractional, Vol. 6 No. 11 · 2022 · Inggris · DOAJ Scopus

A nonlinear fractional differential equation with a Caputo derivative of order α is studied. This problem is discretized by using the L1 scheme on an arbitrary nonuniform mesh. By utilizing the Taylor expansion with integral remainder term, an optimal local truncation error estimation of L1 scheme…

An efficient adaptive grid method for a system of singularly perturbed convection-diffusion problems with Robin boundary conditions

Li-Bin Liu; Ying Liang; Xiaobing Bao dkk.

Advances in Difference Equations, Vol. 2021 No. 1 · 2021 · Inggris · DOAJ

Abstract A system of singularly perturbed convection-diffusion equations with Robin boundary conditions is considered on the interval [ 0 , 1 ] $[0,1]$ . It is shown that any solution of such a problem can be expressed to a system of first-order singularly perturbed initial value problem, which is…

Research Advances in Interface Engineering Design to Regulate Bioavailability of Lipophilic Nutrients Encapsulated in Lipid-based Emulsion Delivery Systems

ZHANG Yingzhu, HU Junjie, LI Bin, LIU Shilin, LI Yan

Shipin Kexue, Vol. 44 No. 7 · 2023 · Tionghoa · DOAJ Scopus

Dietary supplementation has increasingly become an important interventional strategy to maintain human health. With the development of high-throughput screening technology, more and more nutrients have been discovered. However, many nutrients are characterized by high lipophilicity, poor water…

A Multi-site Information Synchronization Scheme Based on Hankel Matrix Singular Value Decomposition

LI Ye, JIA Na, HE Jiawei, LI Bin, LIU Xiaoming

Dianli jianshe, Vol. 46 No. 4 · 2025 · Tionghoa · DOAJ Scopus

[Objective] The synchronization of information in intelligent substations is of great significance for the intelligent diagnosis and protection of power system faults， of which the satellite clock synchronization method is widely used. However， the satellite clock synchronization method is…

Research progress on natural bioactive components in the treatment of pulmonary arterial hypertension

YANG Chunyan, ZHANG Jiawei, XING Yanjiang, LI Bin, LIU Haitao

Jichu yixue yu linchuang, Vol. 46 No. 8 · 2026 · Tionghoa · DOAJ

Pulmonary arterial hypertension(PAH) is characterized by pulmonary vascular remodeling, which is difficult to reverse with current therapies. Natural bioactive components provide a novel strategy for PAH intervention due to their multi-target advantages. This review systematically summarizes the…

The Role of Hs-CRP, D-Dimer and Fibrinogen in Differentiating Etiological Subtypes of Ischemic Stroke

Li-Bin Liu; Mu Li; Wen-Yan Zhuo dkk.

PLOS ONE, Vol. 10 No. 2 · 2015 · Inggris · PLOS Scopus

The aim of this study was to evaluate the diagnostic value of the serum biochemical markers high-sensitivity C-reactive protein (hs-CRP), D-dimer (DD) and fibrinogen (Fg) in differentiating etiological subtypes of ischemic stroke. This study was a retrospective case-only study, consecutively…

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Solid state synthesis of 5-oxo-1,4,5,6,7,8-hexahydroquinoline derivatives without using solvent and catalyst

Tong-Shou Jin; Ying Yin; Li-Bin Liu dkk.

ARKIVOC, Vol. 2006 No. 14 · 2006 · Inggris · DOAJ Scopus

Diagnostic value of STAF score in combination with D-dimer in cardioembolism

Li-Bin Liu; Ya-Dong Guo; An-Ding Xu dkk.

PLOS ONE, Vol. 13 No. 10 · 2018 · Inggris · PLOS Scopus

The aim of this study was to evaluate the diagnostic value of the Score for the Targeting of Atrial Fibrillation (STAF) in combination with the serum D-dimer (DD) levels in cardioembolism(CE).This study was a retrospective case-onlystudy, consecutively including patients with acute ischemic stroke…

The Polythermal Section of Ti-22Al-xNb (30-78at.%Ti) in Ti–Al–Nb System

Yun Zhao; Li-Bin Liu; Li-Gang Zhang dkk.

Metals, Vol. 10 No. 7 · 2020 · Inggris · DOAJ Scopus

The polythermal section of Ti-22Al-xNb (30–78 at.% Ti) in the Ti-Al-Nb system was studied using X-ray diffraction analysis (XRD), differential thermal analysis (DSC), and electron probe micro-analysis (EPMA). No new ternary compounds were found in this work. The polythermal section has five…

Structure and Stability of Copper-Chelating Peptides Produced by Aspergillus oryzae in Solid-State Fermentation on Soybean Meal

WEN Zixuan, ZHOU Yue, HUANG Zhenghua, LI Bin, LIU Yuhuan, ZHENG Fengman, CAO Leipeng,

Shipin Kexue, Vol. 45 No. 22 · 2024 · Tionghoa · DOAJ Scopus

This study aimed to prepare copper-chelating peptides from soybean meal (SBMP-Cu(II)) using Aspergillus oryzae in solid-state fermentation and to investigate the chelation mechanism, structure and stability of SBMP-Cu(II). The results showed that peptides from soybean meal peptides (SBMP) with…