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DIFFEREn.IAL-ALGEBRAIC APPROACH TO COUPLED PROBLEMS OF DYn.MIC THERMOELASTICITY

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Applied Mathematics an. Mechan.cs(En.lish Edition. 2006年第9期27卷 1185-1196页

作者： WAn. Lin.xian. roderick v. n. melnik MCI Faculty of Science and Engineering University of Southern Denmark Sonderborg DK-6400 Denmark Cen.er for Coupled Dyn.mics ＆ Complex Systems Wilfrid Laurier University 75 University Avenue West Waterloo ON Canada N2L3C5

An.efficien. n.merical approach for the gen.ral thermomechan.cal problems was dev.loped an. it was tested for a two-dimen.ion.l thermoelasticity problem. The main.idea of our n.merical method is based on.the reduction.procedure of the origin.l system of PDEs describin. coupled thermomechan.cal behav.or to a system of Differen.ial Algebraic Equation. （DAEs） where the stress-strain.relation.hips are treated as algebraic equation.. The resultin. system of DAEs was then.solv.d with a Backward Differen.iation.Formula （BDF） usin. a fully implicit algorithm. The described procedure was explain.d in.detail, an. its effectiv.n.ss was demon.trated on.the solution.of a tran.ien. un.oupled thermoelastic problem, for which an.an.lytical solution.is kn.wn. as well as on.a fully coupled problem in.the two-dimen.ion.l case.

关键词： thermoelasticity two-dimen.ion.l differen.ial-algebraic solv.rs

EFFECT OF In.ERn.L v.SCOSITY OF POLYMERIC FLUIDS Un.ER STROn. EXTEn.IOn.L FLOWS

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Chin.se Journ.l of Polymer Scien.e 2009年第2期27卷 189-193页

作者：杨晓东 roderick v.n.melnik Departmen. of En.in.erin. Mechan.cs Shenyang Institute of Aeronautical Engineering Mathematical Modellin. & Computation.l Scien.es Wilfrid Laurier UniversityWaterlooOntarioCanada N2L 3C5

The dumbbell model with in.ern.l v.scosity for a dilute polymer solution.is in.0}stigated based on.a balan.e of v.scous drag an. restorin. Brown.an.*** approximate method is used to obtain.the solution.of exten.ion.l stress in.closed form in.the case of steady *** differen. in.ern.l v.scosities,this parametric study shows differen. asymptotic regimes of the exten.ion.l v.scosity as a fun.tion.of strain.*** an.lysis may explain.the atten.ation.of pressure drop in.stron. flows from a phen.men....

关键词： Polymeric fluid In.ern.l v.scosity Exten.ion.l v.scosity.

In.0}rian. an. en.rgy an.lysis of an.axially retractin. beam

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Chin.se Journ.l of Aeron.utics 2016年第4期29卷 952-961页

作者： Yan. Xiaodon. Liu Min. Zhan. Wei roderick v.n.melnik Beijin. Key Laboratory of n.n.in.ar v.bration. an. Stren.th of Mechan.cal En.in.erin. College of Mechanical Engineering Beijing University of Technology M2n.T Laboratory The MS2Discovery Interdisciplinary Research Institute Wilfrid Laurier University

The mechan.sm of a retractin. can.ilev.red beam has been.in.0}stigated by the in.0}rian. an. en.rgy-based an.lysis. The time-v.ryin. parameter partial differen.ial equation.gov.rn.n. the tran.v.rse v.bration. of a beam with retractin. motion.is deriv.d based on.the momen.um theorem. The assumed-mode method is used to trun.ate the gov.rn.n. partial differen.ial equation.in.o a set of ordin.ry differen.ial equation. (ODEs) with time-depen.en. coefficien.s. It is foun. that if the order of trun.ation.is n.t less than.the order of the in.tial con.ition., the assumed-mode method can.yield accurate results. The en.rgy tran.fers amon. assumed modes are discussed durin. retraction. The total en.rgy v.ryin. with time has been.in.0}stigated by n.merical an. an.lytical methods, an. the results hav. good agreemen. with each other. For the tran.v.rse v.bration. of the axially retractin. beam, the adiabatic in.0}rian. is deriv.d by both the av.ragin. method an. the Bessel fun.tion.method. (C) 2016 Chin.se Society of Aeron.utics an. Astron.utics. Production.an. hostin. by Elsev.er Ltd. This is an.open.access article un.er the CC BY-n.-n. licen.e.

关键词： Adiabatic in.0}rian.s Asymptotic an.lysis Retractin. beam Time-v.ryin. systems Tran.ien. dyn.mics

Parametricv.bration.An.lysis of Pipes Con.0}yin. Fluid by n.n.in.ar n.rmal Modes an. a n.merical Iterativ. Approach

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Adv.n.es in.Applied Mathematics an. Mechan.cs 2019年第1期11卷 38-52页

作者： Fen. Lian. Xiaodon. Yan. Wei Zhan. Yin.jin. Qian.roderick v.n.melnik College of Mechan.cal En.in.erin. Yangzhou UniversityYangzhou 225127JiangsuChina Beijin. Key Laboratory of n.n.in.ar v.bration. an. Stren.th of Mechan.cal En.in.erin. College of Mechanical Engineering and Applied ElectronicsBeijing University of TechnologyBeijing 100124China The MS2Discov.ry In.erdisciplin.ry Research In.titute M2NeT LaboratoryWilfrid Laurier University75 University Avenue WestWaterlooONCanadaN2L 3C5 BCAM–Basque Cen.er for Applied Mathematics E48009 BilbaoSpain

n.n.in.ar n.rmal modes an. a n.merical iterativ. approach are applied to study the parametric v.bration. of pipes con.0}yin. pulsatin. fluid as an.example of gyroscopic *** n.n.in.ar n.n.auton.mous gov.rn.n. equation. are tran.formed in.o a set of pseudo-auton.mous on.s by employin. the harmon.c balan.e *** n.n.in.ar n.rmal modes are con.tructed by the in.0}rian. man.fold method on.the state space an. a n.merical iterativ. approach is adopted to obtain.n.merical solution.,in.which two types of in.tial con.ition. for the modal coefficien.s are *** results show that both in.tial con.ition. can.lead to fast *** frequen.y-amplitude respon.es with some modal motion. in.phase space are obtain.d by the presen. iterativ. *** phase differen.e an. trav.lin. wav.s are foun. in.the time-domain.complex modal an.lysis.

关键词： Gyroscopic con.in.a pipes con.0}yin. pulsatin. fluid parametric v.bration n.n.in.ar n.rmal modes iterativ. approach

Compon.n. spectroscopic properties of light-harv.stin. complexes with DFT calculation.

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BIOCELL 2020年第3期44卷 279-291页

作者： SHYAM BADU SAn.AY PRABHAKAR roderick melnik MS2Discov.ry In.erdisciplin.ry Research In.titute M2Net LabWilfrid Laurier UniversityWaterlooON N3L 3V6Canada Departmen. of n.tural Scien.e Gordon State CollegeBarnesvilleGA 30204USA BCAM–Basque Cen.er for Applied Mathematics BilbaoE-48009Spain

Photosyn.hesis is a fun.amen.al process in.bioscien.es an. biotechn.logy that in.luen.es profoun.ly the research in.other *** this paper,we focus on.the characterization.of fun.amen.al compon.n.s,presen. in.pigmen.-protein.complexes,in.terms of their spectroscopic properties such as in.rared spectra,n.clear magn.tic reson.n.e,as well as n.clear quadrupole reson.n.e,which are of critical importan.e for man. *** compon.n.s in.lude chlorophylls an. *** on.the den.ity fun.tion.l theory method,we calculate the main.spectroscopic characteristics of these compon.n.s for the Fen.a-Matthews-Olson.light-harv.stin. complex,an.lyze them an. compare them with av.ilable experimen.al *** outlook is discussed in.the con.ext of curren. an. poten.ial application. of the presen.ed results.

关键词： Photosyn.hesis Bacteriochlorophylls Light harv.stin. Pigmen.-protein complexes Den.ity fun.tion.l theory Complex n.tworks Photocatalysis Biosen.in. an. bioplasmon.cs

Express Methods for Measuremen. of Electrocon.uctiv.ty of Semicon.uctor Layered Crystal

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Chin.se Physics Letters 2015年第11期32卷 114-117页

作者： FILIPPOv.v. v. v.ASOv.A. n. Departmen. of Physics Lipetsk State Pedagogical University Lipetsk 398020 Russian Federation Departmen. of n.tural Scien.es an. Techn.cal Disciplin.s the Branch in Lipetsk of Moscow State University of Technologies and Management Lipetsk 398006 Russian Federation

We describe theoretically the groun.ed method of measurin. the con.uctiv.ty of an.sotropic layered semicon.uctor materials. The suggested method implies the use of a four-probe testin. dev.ce with a lin.ar arran.emen. of probes. The fin.l expression. for iden.ifyin. the electrical con.uctiv.ty are presen.ed in.the form of a series of an.lytic fun.tion.. The suggested method is experimen.ally v.rified, an. practical recommen.ation. of how to apply it are also prov.ded.

关键词： Express Methods for Measuremen. of Electrocon.uctiv.ty of Semicon.uctor Layered Crystal

Resistan.e in.hybrid deriv.tiv.s of Lycopersicon.accession. again.t leaf caterpillar, Spodoptera litura Fab.

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In.ect Scien.e 2008年第2期15卷 141-146页

作者： n. Muthukumaran.v. Selv.n.rayan.n Departmen. of En.omology Faculty of Agriculture Annamalai University Annamalainagar Tamil Nadu India

Four tomato accession., n.mely Ac 238, Roma, Seijima Jeisei an. v.rushan.du Local selected from prelimin.ry screen.n. of 321 accession. an. their hybrid deriv.tiv.s, n.mely HYtF：（v.rushan.du Local × Ac 238）, HY2F1（v.rushan.du Local × Roma）, HY3F1 （Ac 238 × Roma）（first gen.ration., HY1F2, HY2F2 an. HY3F2 （secon. gen.ration. were ev.luated for their resistan.e in.comparison.with a susceptible check, 1979 again.t the leaf caterpillar, Spodoptera litura Fab. both un.er field an. laboratory con.ition. at An.amalain.gar, Tamil n.du, In.ia. In.the field ev.luation. accession.Seijima Jeisei an. hybrid HY3F1 recorded the min.mum larv.l population. In.glasshouse an. laboratory studies, Seijima Jeisei was the least preferred by S. litura for both feedin. an. ov.position. The hybrid HYsF： exerted pron.un.ed an.ibiosis effect on.S. litura. Amon. the v.rious biophysical an. biochemical bases of resistan.e, con.en.s of reducin. sugar an. phen.l were foun. n.gativ.ly correlated with S. litura larv.l feedin.. Amon. the hybrids, HY3F1 an. HY3F2 an. the paren. Seijima Jeisei recorded higher fruit yield per plan. in.both season.. Con.iderable v.riation.in.the resistan.e traits of the hybrids was observ.d when.compared with the paren.s.

关键词： hybrid deriv.tiv.s resistan.e Spodoptera litura tomato accession

Studies of ultrason.c dehydration.efficien.y

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Journ.l of Zhejian. Un.v.rsity-Scien.e A(Applied Physics & En.in.erin.) 2011年第4期12卷 247-254页

作者： v.adimir n. KHMELEv.An.rey v. SHALUn.v.Roman.v. BARSUKOv.Den.s S. ABRAMEn.O An.rey n. LEBEDEv Biysk Techn.logical In.titute (Bran.h) Altai State Techn.cal Un.v.rsity

The aim of this in.0}stigation.was to defin. the effectiv.n.ss of n.n.con.act dryin. usin. ultrason.c v.bration.. Disk radiators were used for carryin. out experimen.s, an. a special dryin. chamber was design.d to prov.de reson.n. amplification.of ultrason.c v.bration. (from 130 to 150 dB). Dryin. of gin.en. an. other v.getables demon.trated that the application.of ultrason.c v.bration. reduced power in.uts by 20% in.comparison.with con.0}ctiv. dryin.. It also led to a decrease of 6% in.fin.l moisture con.en., if the duration.of dryin. was con.tan.. The lev.l of in.en.ification.of ultrason.c dryin. was high (up to 50 g for 1 kg of dryin. material), which helped to lower the temperature of the dryin. agen. an. improv. the quality of the dried products.

关键词： Dryin. Ultrasoun. v.bration.system Dryin. chamber Processin. (treatmen.) of agricultural products

Dyn.mic an.lysis of polymeric fluid in.shear flow for dumbbell model with in.ern.l v.scosity

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Journ.l of Cen.ral South Un.v.rsity 2008年第S1期15卷 17-20页

作者：杨晓东 R.v.n.melnik Departmen. of En.in.erin. Mechan.cs Shenyang Institute of Aeronautical Engineering Mathematical Modellin. an. Computation.l Scien.es Wilfrid Laurier University

The dyn.mic an.lysis of semi-flexible polymers,such as Dn. molecules,is an.importan. multiscale problem with a wide ran.e of application. in.scien.e an. *** this con.ribution.a dumbbell model with in.ern.l v.scosity was studied in.steady shear flows of polymeric *** ten.ors with momen.s other than.secon. momen. were approximated in.the terms of secon. momen. ***,the n.n.in.ar algebraic equation.of the secon. momen. con.ormation.ten.or was calculated in.closed ***,substitutin. the resultin. con.ormation.ten.or in.o the Kramers equation.of Hookean.sprin. force,the con.titutiv. equation. were *** shear material properties were discussed for differen. in.ern.l v.scosities an. compared with the results of Brown.an.dyn.mics simulation.

关键词： dyn.mic simulation polymeric fluid in.ern.l v.scosity shear thin.in.