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New Configurations of the Fuzzy Fractional Differential Boussinesq Model with Application in Ocean Engineering and Their Analysis in Statistical Theory

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Computer Modeling in Engineering & Sciences 2023年第11期137卷 1573-1611页

作者： yu-ming Chu SaimaRashid Shazia Karim Anam Sultan Department of Mathematics Huzhou UniversityHuzhou313000China Department of Mathematics Government College UniversityFaisalabad38000Pakistan Department of Basic Sciences and Humanities UET LahoreFaisalabad CampusLahorePakistan

The fractional-order Boussinesq equations(FBSQe)are investigated in this work to see if they can effectively improve the situation where the shallow water equation cannot directly handle the dispersion *** fuzzy forms of analytical FBSQe solutions are first derived using the Adomian decomposition *** also occurs on the sea floor as opposed to at the functionality.A set of dynamical partial differential equations(PDEs)in this article exemplify an unconfined aquifer flow *** can accurately simulate climatological intrinsic waves,so the ripples are spread across a large demographic *** Aboodh transform merged with the mechanism of Adomian decomposition is implemented to obtain the fuzzified FBSQe in R,R^(n) and(2nth)-order involving generalized Hukuhara *** to the system parameter,we classify the qualitative features of the Aboodh transform in the fuzzified Caputo and Atangana-Baleanu-Caputo fractional derivative formulations,which are addressed in *** illustrations depict a comparison analysis between the both fractional operators under gH-differentiability,as well as the appropriate attributes for the fractional-order and unpredictability factorsσ∈[0,1].A statistical experiment is conducted between the findings of both fractional derivatives to prevent changing the hypothesis after the results are *** on the suggested analyses,hydrodynamic technicians,as irrigation or aquifer quality experts,may be capable of obtaining an appropriate storage intensity amount,including an unpredictability threshold.

关键词： Fuzzy set theory aboodh transform adomian decomposition method boussinesq equation fractional derivative operators analysis of variance test

Decay Rate of Quasilinear Wave Equation with Viscosity

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Acta Mathematicae Applicatae Sinica 2012年第3期28卷 591-596页

作者： yu-ming QIN Xin LIU Shu-xian DENG Department of Applied Mathematics College of SciencesDonghua UniversityShanghai 201620China College of Information Sciences and Technology Donghua UniversityShanghai 201620China

This paper is concerned with the decay rate of solutions for a quasilinear wave equation with viscosity. We use a so-called energy perturbation method to establish decay rate of solutions in terms of energy norm for a class of nonlinear functions. With the help of a comparison lemma of differential inequalities, we establish a relationship between decay rate of solutions and f.

关键词： decay rate energy inequality quasilinear wave equation

Anomalous spatial shifts in interface electronic scattering

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Frontiers of physics 2019年第3期14卷 47-64页

作者： Zhi-ming yu Ying Liu Shengyuan A. Yang Research Laboratory for Quantum Materials Singapore University of Technology and Design Singapore 487372 Singapore

The anomalous spatial shifts at interface scattering, first studied in geometric optics, recently found their counterparts in the electronic context. It was shown that both longitudinal and transverse shifts, analogous to the Goos-Hanchen and Imbert-Fedorov effects in optics, can exist when electrons are scattered at a junction interface. More interestingly, the shifts are also discovered in the process of Andreev reflection at a normal/superconductor interface. Particularly, for the case with unconventional superconductors, it was discovered that the transverse shift can arise solely from the superconducting pair potential and exhibit characteristic features depending on the pairing. Here, we briefly review the recent works in this field, with an emphasis on the physical picture and theoretical understanding.

关键词： interface seattering transverse shift electron optics

Global Existence,Asymptotic Behavior and Uniform Attractors for Non-autonomous Thermoelastic Systems

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Acta Mathematicae Applicatae Sinica 2016年第4期32卷 1015-1034页

作者： yu-ming QIN Tian-hui WEI Jia REN Department of Applied Mathematics Donghua University

In this paper, we first establish the global existence and asymptotic behavior of solutions by using the semigroup method and multiplicative techniques, then further prove the existence of a uniform attractor for a non-autonomous thermoelastic system by using the method of uniform contractive functions. The main advantage of this method is that we need only to verify compactness condition with the same type of energy estimates as that for establishing absorbing sets. Moreover, we also investigate an alternative result of solutions to the semilinear thermoelastic systems by virtue of the semigroup method.

关键词： Thermoelastic systems global existence asymptotic behavior uniform attractors semigroupmethods

RF power and I/Q imbalance calibration in B3G/4G MIMO-OFDM systems

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The Journal of China Universities of Posts and Telecommunications 2007年第2期14卷 89-93,124页

作者： LI Ya-zhuo ZHOU ming-yu ZHANG Ping Wireless Technologies Innovation Institute Key Laboratory of Universal Wireless Communication Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

Radio frequency （RF） front-end nonidealities in multi-input and multi-output （MIMO） systems are more serious than in single-input and single-output systems and must be calibrated. According to the effects of RF power and in-phase/quadrature-phase （I/Q） imbalance, calibration methods for multi-input and multi-output-orthogonal frequency division multiplexing （MIMC-OFDM） systems in transmitter and interference in receiver are improved, respectively, in this article Furthermore, a calibration scheme including I/Q imbalance errors and amplitude variations is proposed and implemented in the B3G/4G time division duplex communication system. Simulation results show that the calibration algorithms are feasible, and the bit error rate （BER） performances for MIMO-OFDM systems are improved after calibrations.

关键词： calibration, B3G/4G MIMO-OFDM, front-end, I/Q imbalance

Peridynamic Study on Fracture Mode and Crack Propagation Path of a Plate with Multiple Cracks Subjected to Uniaxial Tension

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Computer Modeling in Engineering & Sciences 2023年第12期137卷 2593-2620页

作者： Zeyuan Zhou ming yu Xinfeng Wang Zaixing Huang State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing210016Chin

How to simulate fracture mode and crack propagation path in a plate with multiple cracks is an attractive but difficult issue in fracture *** is a recently developed nonlocal continuum formulation that can spontaneously predict the crack nucleation,branch and propagation in materials and structures through a meshfree discrete *** this paper,the peridynamic motion equation with boundary traction is improved by simplifying the boundary transfer *** calculate the critical cracking load and the fracture angles of the plate with multiple cracks under uniaxial *** results are consistent with those predicted by classical fracture *** fracture mode and crack propagation path are also *** calculation shows that the brittle fracture process of the plate with multiple cracks can be conveniently and correctly simulated by the peridynamic motion equation with boundary conditions.

关键词： Peridynamics multiple cracks brittle fracture crack propagation

Removal of dichloromethane from waste gases by a biotrickling filter

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Journal of Environmental Sciences 2006年第6期18卷 1073-1076页

作者： yu Jian-ming CHEN Jian-meng WANG Jia-de College of Biological and Environmental Engineering Zhejiang University of Technology Hangzhou 310032 China

Dichloromethane is harmful to human health and hazardous to atmospheric environment. In this study, two strains were isolated which were identified as Pseudomonas sp. and Mycobacterium sp., and utilized dichloromethane （DCM） as sole carbon and energy sources. The optimal culture conditions were temperature of 28℃ and pH of 6.5 for obtaining the two mixed bacterial strains. The investigation on the purification of DCM-contaminated gas was carried out in a bench-scale biotrickling filter which was inoculated with the two strains and operated under these optimal conditions. The DCM removal efficiencies varied between 72% and 99% in the biotrickling filter when empty-bed residence time was 9.6 s with the inlet concentrations ranged fi＇om 0.7 to 3.12 g/m^3 under the conditions ofpH of 6.5 ±0.5 and temperature of 28℃. It was also found that NaCl accumulation in the broth would inhibit the DCM biodegradation dramatically when the accumulated NaCl concentration was over 35.1 g/L.

关键词： dichloromethane biodegradation biotrickling filter air pollution control

Properties of the Collision Efficiency of Nanoparticles in Brownian Coagulation

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Chinese Physics Letters 2011年第1期28卷 130-133页

作者： WANG yu-ming LIN Jian-Zhong CHEN Zhong-Li Institute of Fluid Mechanics China Jiliang University Hangzhou 310018 Department of Mechanics Zhejiang University Hangzhou 310027

The collision efficiency of nanoparticles with diameters from 100nm to 750nm in the Brownian coagulation is studied by building and solving＂ numerically the equations of particle collision in the presence of the van der Waals force, the elastic deformation force, the Stokes resistance, the lubrication force and the electrostatic force. The results show that the collision efficiency decreases overall with the increasing- particle diameter. It is found that there exists an abrupt increase in the collision efficiency when the particle diameter is equals to 550nm. Finally a new expression for the collision efficiency is presented.

关键词： Condensed matter: structural, mechanical & thermal Nanoscale science and low-D systems

Photoproduction of Large Transverse Momentum Dimuonium (μ^(+)μ^(−)) in Relativistic Heavy Ion Collisions

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Chinese Physics Letters 2013年第1期30卷 48-51页

作者： yu Gong-ming LI yun-De Department of Physics Yunnan UniversityKunming 650091

The photoproduction processes of large transverse momentum(pT)dimuonium(μ^(+)μ^(-))in AA collisions is *** argue that the modification of electromagnetic radiation processes at large transverse momentum(p_(T)>2 GeV).Through perturbative quantum chromodynamics(pQCD)calculation,we determine the electromagnetic production cross section of large transverse momentum dimuonium(μ^(+)μ^(-))in quark-gluon plasma(QGP)at RHIC and *** numerical results indicate that the contribution of photoproduction processes of dimuonium is evident in relativistic heavy ion collisions at RHIC energies and LHC energies.

关键词： momentum transverse quark