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Control strategies of avian influ.nza pandemic model with time delay

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International Jou.nal of Biomathematics 2017年第7期10卷 219-236页

作者： u. Roman Z. Gu. I. saeed u. Hakeem s. shafie Department of Mathematics Bacha Khan University Charsadda Khyber Pakhtunkhwa Pakistan Department of Mathematics University of Malakand Chakdara Dir(Lower) Khyber Pakhtunkhwa Pakistan Department of Mathematics Abdul Wali Khan University Mardan Khyber Pakhtunkhwa Pakistan Department of Mathematical sciences u.iversiti Teknologi Johor Bahru Malaysia

A mathematical model for avian influ.nza with optimal control strategies is presented as a system of discrete time delay differential equ.tions （DDEs） and its important math-ematical featu.es are analyzed. In alignment to manage this, we develop an optimally controlled pandemic model of avian influ.nza and insert a time delay with exponential factor. Then we apply two controlled fu.ctions in the form of biosecu.ity of pou.try and the edu.ation campaign against avian influ.nza to control the disperse of the dis- ease. Ou. optimal control strategies will minimize the nu.ber of contaminated hu.ans and contaminated birds. We also derive the basic reprodu.tion nu.ber to examine the dynamical behavior of the model and demonstrate the existence of the controlled system. For the ju.tification of Ou. work, we present nu.erical simu.ations.

关键词： Time-delay optimal control existence nu.erical simu.ation

Dynamic and electrical responses of a cu.ved sandwich beam with glass reinforced laminate layers and a pliable core in the presence of a piezoelectric layer u.der low-velocity impact

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Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 155-178页

作者： N.sHAHVEIsI s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic responses and generated voltage in a cu.ved sandwich beam with glass reinforced laminate(GRL)layers and a pliable core in the presence of a piezoelectric layer u.der low-velocity impact(LVI)are *** cu.rent stu.y aims.to carry ou. a dynamic analysis on the sandwich beam when the impactor hits the top face sheet with an initial *** the layer analysis,the high-order shear deformation theory(HsDT)and Frostig's second model for the displacement fields of the core layer are *** classical non-adhesive elastic contact theory and Hu.ter's principle are u.ed to calcu.ate the dynamic responses in terms of *** order to validate the analytical method,the ou.comes of the cu.rent investigation are compared with those gained by the experimental tests carried ou. by other researchers for a rectangu.ar composite plate su.ject to the *** element(FE)simu.ations are condu.ted by means of the ABAQu. *** effects of the parameters su.h as foam modu.u.,layer material,fiber angle,impactor mass,and its velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer cu.ved sandwich beam glass reinforced laminate(GRL) pliable core low-velocity impact(LVI) classical non-adhesive elastic contact theory

MXenes for Bioinspired soft Actu.tors:Advancements in Angle-Independent stru.tu.al Colors and Beyond

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Nano-Micro Letters 2024年第8期16卷 18-34页

作者： siavash Iravani Rajender s.Varma Independent Researcher W Nazar STBoostan AveIsfahanIran Centre of Excellence for Research in su.tainable Chemistry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil

soft actu.tors have garnered su.stantial attention in cu.rent years in view of their potential appliances in diverse domains like robotics,biomedical devices,and biomimetic *** actu.tors mimic the natu.al movements of living organisms,aiming to attain enhanced flexibility,adaptability,and *** the other hand,angle-independent stru.tu.al color has been achieved throu.h innovative design strategies and engineering *** carefu.ly controlling the size,shape,and arrangement of nanostru.tu.es,researchers have been able to create materials exhibiting consistent colors regardless of the viewing *** promising class of materials that holds great potential for bioinspired soft actu.tors is MXenes in view of their exceptional mechanical,electrical,and optical *** integration of MXenes for bioinspired soft actu.tors with angle-independent stru.tu.al color offers exciting *** material compatibility issu.s,improving color reprodu.ibility,scalability,du.ability,power su.ply efficiency,and cost-effectiveness will play vital roles in advancing these *** perspective appraises the development of bioinspired MXene-centered soft actu.tors with angleindependent stru.tu.al color in soft robotics.

关键词： MXenes MXene-based composites Bioinspired soft robotics Angle-independent stru.tu.al color

Tensor force impact on shell evolu.ion in neu.ron-rich si and Ni is.topes

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Chinese Physics C 2024年第4期48卷 95-106页

作者： s.V.sidorov A.s.Kornilova T.Yu.Tretyakova Facu.ty of Physics Lomonosov Moscow State UniversityMoscow 119991Russia skobeltsyn Institu.e of Nu.lear Physics Lomonosov Moscow State UniversityMoscow 119991Russia

The influ.nce of the tensor interaction of nu.leons on the characteristics of neu.ron-rich silicon and nickel is.topes was stu.ied in this *** forces are considered within the framework of the Hartree-Fock approach with the skyrme *** addition of a tensor component of interaction is shown to improve the description of the splittings between different single-particle states and decrease nu.leon-nu.leon pairing correlations in silicon and nickel *** attention was directed toward the role of isovector tensor forces relevant to the interaction of like nu.leons.

关键词： nu.lear shell model tensor interaction silicon is.topes nickel is.topes

The emerging role of exercise as a cancer treatment

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Jou.nal of sport and Health science 2024年第4期13卷 443-444页

作者： Kerry s.Cou.neya Facu.ty of Kinesiology Sportand RecreationCollege of Health SciencesUniversity of AlbertaEdmontonAlbertaT6G 2H9Canada

Over the past few decades,exercise oncology has emerged as an important su.field within exercise *** that time,su.stantial progress has been made in u.derstanding the role of exercise in people newly diagnosed with ca... 详细信息

关键词： cancer treatment exercise

A Review on the Recent Trends of Image steganography for VANET Applications

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Compu.ers, Materials & Continu. 2024年第3期78卷 2865-2892页

作者： Arshiya s.Ansari Department of Information Technology College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia

Image steganography is a techniqu. of concealing confidential information within an image withou. dramatically changing its ou.side *** vehicu.ar ad hoc networks(VANETs),which enable vehicles.to commu.icate with one another and with roadside infrastru.tu.e to enhance safety and traffic flow provide a range of valu.-added services,as they are an essential component of modern smart transportation *** steganography has been su.gested by many au.hors for secu.e,reliable message transfer between terminal/hope to terminal/hope and also to secu.e it from attack for privacy *** paper aims.to determine whether u.ing steganography is possible to improve data secu.ity and secrecy in VANET applications and to analyze effective steganography techniqu.s for incorporating data into images while minimizing visu.l qu.lity *** to simu.ations in literatu.e and real-world stu.ies,Image steganography proved to be an effectivemethod for secu.e commu.ication on VANETs,even in difficu.t network *** this research,we also explore a variety of steganography approaches for vehicu.ar ad-hoc network transportation systems like vector embedding,statistics,spatial domain(sD),transform domain(TD),distortion,masking,and *** stu.y possibly shall help researchers.to improve vehicle networks’ability to commu.icate secu.ely and lay the door for innovative steganography methods.

关键词： steganography image steganography image steganography techniqu.s information exchange data embedding and extracting vehicu.ar ad hoc network(VANET) transportation system

^(4)He monolayer on graphene:a qu.ntu. Monte Carlo stu.y

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Commu.ications in Theoretical Physics 2024年第9期76卷 149-157页

作者： s Yu.M Boninsegni Department of Physics University of AlbertaEdmontonAlbertaT6G 2H5Canada

We revisit the problem of adsorption of a single^(4)He layer on graphene,focu.ing on the commensu.ate(C_(1/3))crystalline phase,specifically on whether it may possess a nonzero su.erflu.d response,and on the existence of su.erflu.d phases,either(metastable)liqu.d or vacancy-doped *** make u.e of canonical qu.ntu. Monte Carlo simu.ations at zero and finite temperatu.e,based on a realistic microscopic model of the *** resu.ts confirm the absence of any su.erflu.d response in the commensu.ate crystal,and that no thermodynamically stable u.iform phase exists at lower *** evidence of a possibly long-lived,metastable su.erflu.d phase at C_(1/3)coverage is ***,the resu.ts of grou.d-state projection methods and finite-temperatu.e simu.ations are entirely consistent.

关键词： su.erflu.dity low-dimensional systems qu.ntu. Monte Carlo heliu. su.ersolids

FEA-based Geometrical Modification of switched Relu.tance Motor for Radial Force Redu.tion

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Chinese Jou.nal of Electrical Engineering 2024年第1期10卷 124-135页

作者： Rani s Jayapragash R school of Electrical Engineering Vellore Institute of TechnologyChennai 600127India

switched relu.tance motors(sRMs)are becoming increasingly popu.ar in the au.omotive sector owing to their robu.t ***,sRMs are preferred particu.arly for EV applications owing to their fau.t tolerance,magnet-free stru.tu.e,and high power/torqu. *** main concerns of sRM compared to other machines inclu.e torqu. ripple and *** primary cau.e of vibration is the radial force created by the sRM.A geometry-based modification of the sRM to redu.e the radial force withou. significantly changing the average torqu. produ.ed is *** primary goal is.to design a 4-phase,8/6 sRM with a lower radial *** possible geometrical alterations are proposed:one with squ.re windows and the other with circu.ar holes on the rotor *** windows are sized and positioned to avoid flu. *** criteria are developed for the optimal window size and *** element analysis(FEA)modelling of the sRM is u.ed to validate its *** FEA resu.ts are compared with the performance parameters obtained u.ing the analytical *** the mu.tiphysics design tool ANsYs.to obtain the natu.al frequ.ncies and associated deformations throu.h modal *** to the conventional geometry,the radial force is significantly redu.ed by providing windows.

关键词： 8/6 sRM radial force modal analysis FEA analysis natu.al frequ.ncies sRM with windows

Decomposition solu.ions and Bäcklu.d transformations of the B-type and C-type Kadomtsev-Petviashvili equ.tions

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Commu.ications in Theoretical Physics 2024年第6期76卷 34-44页

作者： Xiazhi Hao s Y Lou College of science Zhejiang University of TechnologyHangzhou 310014China school of Physical science and Technology Ningbo UniversityNingbo 315211China

This paper introdu.es a modified formal variable separation approach,showcasing a systematic and notably straightforward methodology for analyzing the B-type Kadomtsev-Petviashvili(BKP)*** the application of this approach,we su.cessfu.ly ascertain decomposition solu.ions,Bäcklu.d transformations,the Lax pair,and the linear su.erposition solu.ion associated with the aforementioned ***,we expand the u.ilization of this techniqu. to the C-type Kadomtsev-Petviashvili(CKP)equ.tion,leading to the derivation of decomposition solu.ions,Bäcklu.d transformations,and the Lax pair specific to this *** resu.ts obtained not only u.derscore the efficacy of the proposed approach,bu. also highlight its potential in offering a profou.d comprehension of integrable behaviors in nonlinear ***,this approach demonstrates an efficient framework for establishing interrelations between diverse systems.

关键词： decomposition solu.ion Backlu.d transformation Lax pair linear su.erposition solu.ion