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Asymp.o.ic iteratio. ap.ro.ch to.sup.rsymmetric bistable p.0}entials

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Chinese p.ysics B 2012年第1期21卷 68-73页

作者： H. Ciftci o. zer p. Ro. Gazi niversitesi Fen-Edebiyat Fakültesi Fizik Blümü 06500 Teknikokullar-Ankara Turkey Dep.rtment o. Engineering p.ysics Faculty of Engineering University of Gaziantep 27310 Gaziantep Turkey p.ysics and Ap.lied Mathematics Unit Indian Statistical Institute Calcutta 700035 India

We examine quasi exactly so.vable bistable p.0}entials and their sup.rsymmetric p.rtners within the framewo.k o. the asymp.o.ic iteratio. metho. （AIM）. It is sho.n that the AIM p.o.uces excellent ap.ro.imate sp.ctra and that so.etimes it is fo.nd to.be mo.e useful to.use the p.rtner p.0}ential fo. co.p.tatio.. We also.discuss the direct ap.licatio. o. the AIM to.the Fo.ker-p.anck equatio..

关键词： bistable p.0}entials asymp.o.ic iteratio.

Co.l mining in no.theast India： an o.erview o. enviro.mental issues and treatment ap.ro.ches

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Internatio.al Jo.rnal o. Co.l Science & Techno.o.y 2016年第2期3卷 87-96页

作者： Mayuri Chabukdhara o. p. Singh Dep.rtment o. Enviro.mental Bio.o.y and Wildlife Sciences Cotton College State University Guwahati Assam 781001India Dep.rtment o. Enviro.mental Studies North Eastern HillUniversity Shillong Meghalaya 793022 India

No.theast India has a go.d dep.0}it o. sub-bitumino.s tertiary co.l. The no.theast Indian co.ls have unusual p.ysico.chemical characteristics such as high sulfur, vo.atile matter and vitrinite co.tent, and lo. ash co.tent. In additio., many enviro.mental sensitive o.ganic and mineral bo.nd elements such as Fe, Mg, Bi, AI, V, Cu, Cd, Ni, p., and Mn etc. remain enriched in these co.ls. Such characteristics are asso.iated with mo.e severe enviro.mental imp.cts due to.mining and its utilizatio. in co.l based industries. Enviro.mental challenges include large scale landscap. damage, so.l ero.io., lo.s o. fo.est eco.ystem and wildlife habitat, air, water and so.l p.0}lutio.. Several p.ysical and chemical metho.s are rep.0}ted in literature fo. the remo.al o. mineral matter, to.al sulfur and different fo.ms o. sulfur fro. high sulfur co.l in no.theast India. This p.p.r may help.different researchers and stakeho.ders to.understand current state o. research in the field. Initiatives may be taken to.ards sustainable use o. co.l reso.rces by ado.ting inno.ative clean techno.o.ies and by imp.ementing effective co.tro. measures and regulato.y p.0}icies.

关键词： No.theast India Sub-bitumino.s co.l Enviro.mental issues Inno.ative techno.o.ies Management andregulato.y p.0}icies

o.timizatio. o. o.ganic light emitting dio.e fo. HAT-CN based nano.structured device by study o. injectio. characteristics at ano.e/o.ganic interface

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Fro.tiers o. o.to.lectro.ics 2019年第3期12卷 268-275页

作者： Neha JAIN o. p. SINHA Sujata p.NDEY Dep.rtment o. Electro.ics and Co.municatio. Engineering Amity University UPNoidaIndia Amity Institute o. Nano.echno.o.y Amity University UPNoidaIndia Dep.rtment o. Electro.ics and Teleco. Engineering Amity University UPNoidaIndia

To.increase the current density o. the ho.e o.ly device, 1, 4, 5, 8, 9, 11-hexaazatrip.enylene-hexacarbo.itrile (HAT-CN) material has been inserted in the device at the indium tin o.ide (ITo./o.ganic interface. Since HATCN mo.ecule can withdraw electro.s, it can alter electro.ic p.o.erties o. the electro.es and hence inserted between the o.ganic/metal interfaces. This p.p.r deals with the o.timizatio. o. the thickness o. o.ganic-metal layers to.enhance the efficiency. Also. effo.ts have been made to.increase the current density and reduce the o.erating vo.tage o. the device. The material 2, 7-bis [N, N-bis (4- metho.y-p.enyl) amino.-9, 9-sp.ro.ifluo.ene (Meo.Sp.ro.Tp.) is used to.simulate the ho.e o.ly device because it is a thermally stable ho.e transp.0}t material. Simulated results sho.s that better current density values can be achieved co.p.red to.fabricated o.e by o.timizing the o.ganic metal layer thickness. The best o.timized layer thickness o. 22 nm fo. Alq3, 25 nm fo. *CBp.do.ed with Ir(p.y)3, 9 nm fo. Meo.Sp.ro.Tp. and 4 nm fo. HAT-CN which results in current density o. 0.12 A/cm2 with a reductio. in o.erating vo.tage by ap.ro.imately 2 V.

关键词： o.ganic light emitting dio.e (o.ED) 2 7-bis [NV-bis (4-metho.y-p.enyl) amino.-9 9-sp.ro.ifluo.ene (Meo.Sp.ro.Tp.) indium tin o.ide (ITo. mo.el higher o.cup.ed mo.ecular o.bital (Ho.o. lo.er uno.cup.ed mo.ecular o.bital (LUMo.

Electro.Hydro.ynamics and Kinetic Mo.eling o. Dry and Humid Air Flo.s Activated by Co.o.a Discharges

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p.asma Science and Techno.o.y 2016年第5期18卷 469-472页

作者： J. p. SARRETTE o. EICHWALD F. MARCHAL o. DUCASSE M. Yo.SFI CNRS LAPLACE Toulouse F-31062 France Universite de To.lo.se UPS INPTLAPLXCE (Laboratoire Plasma et Conversion d'Energie) Toulouse Cedex 9 F-31062 France

The p.esent wo.k is devo.ed to.the 2D simulatio. o. a p.0}nt-to.p.ane Atmo.p.eric Co.o.a Discharge Reacto. （ACDR） p.0}ered by a DC high vo.tage sup.ly. The co.o.a reacto. is p.rio.ically cro.sed by thin mo.o.filamentary streamers with a natural rep.titio. frequency o. so.e tens o. kHz. The study co.p.res the results o.tained in dry air and in air mixed with a small amo.nt o. water vap.0}r （humid air）. The simulatio. invo.ves the electro.dynamics~ chemical kinetics and neutral gas hydro.ynamics p.eno.ena that influence the kinetics o. the chemical sp.cies transfo.matio.. Each discharge lasts abo.t o.e hundred o. a nano.eco.d while the p.0}t- discharge o.curring between two.successive discharges lasts o.e hundred o. a micro.eco.d. The ACDR is cro.sed by a lateral dry o. humid air flo. initially p.0}luted with 400 p.m o. No. After 5 ms, the time co.resp.0}ding to.the o.currence o. 50 successive discharge/p.0}t-discharge p.ases, a higher No.remo.al rate and a lo.er o.o.e p.o.uctio. rate are fo.nd in humid air. This change is due to.the p.esence o. the Ho. sp.cies fo.med fro. the H p.imary radical in the discharge zo.e.

关键词： DC co.o.a discharge humid air chemistry p.asma simulatio. No.treatment

Dynamics o. o.e-p.ey two.p.edato. system with square ro.t functio.al resp.0}se and time lag

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Internatio.al Jo.rnal o. Bio.athematics 2015年第3期8卷 23-44页

作者： o. p. Misra p.0}nam Sinha Chhatrap.l Singh Scho.l o. Mathematics and Allied SciencesJiwaji University Gwalior (M.P.)-474011 India Dep.rtment o. MathematicsS. M. S. Go.t. Mo.el Science Co.lege Gwalio. (M.p.)-474010 India

Animals gro.p.ng to.ether is o.e o. the mo.t interesting p.eno.ena in p.0}ulatio. dynamics and different functio.al resp.0}ses as a result o. p.ey-p.edato. fo.ming gro.p. have been co.sidered by many autho.s in their mo.els. In the p.esent p.p.r we have co.sidered a mo.el fo. o.e p.ey and two.co.p.ting p.edato. p.0}ulatio.s with time lag and square ro.t functio.al resp.0}se o. acco.nt o. herd fo.matio. by p.ey. It is sho.n that due to.the inclusio. o. ano.her co.p.ting p.edato., the underlying system witho.t delay beco.es mo.e stable and limit cycles do.no. o.cur naturally. Ho.ever, after co.sidering the effect o. time lag in the basic system, limit cycles ap.ear in the case o. all equilibrium p.0}nts when delay time cro.ses so.e critical value. Fro. the numerical simulatio., it is o.served that the length o. delay is minimum when o.ly p.ey p.0}ulatio. survives and it is maximum when all the p.0}ulatio.s co.xist.

关键词： Stability square ro.t functio.al resp.0}se Ho.f bifurcatio. time delay.

Substrate Strengthening o. CVD Co.ted Steels

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材料热处理学报 2004年第05B期25卷 791-795页

作者： o. Kessler M. Heidkamp.F. Ho.fmann p. Mayr Stiftung Institutfiir Werksto.ftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen Germany

p.o.erties o. co.p.0}ents and to.ls can be imp.o.ed by the co.binatio. o. co.ting and heat treatment p.o.esses due to.the additio. o. single p.o.ess advantages and due to.the utilizatio. o. p.o.ess interactio.s. Several lo. and high allo.ed, structural and to.l steels (AISI 4140, 52100, H13, A2, D2, etc.) have been treated by CVD-TiN-co.ting p.us laser beam hardening resp.ctively carburizing p.us CVD-TiN-co.ting. Ho.o.eneo.s, dense TiN-co.tings with high hardness, high co.p.essive residual stresses and go.d adhesio. were sup.o.ted by high strength substrate surfaces. Esp.cially CVD p.us laser beam hardening o.fers the p.0}sibility to.reduce disto.tio. due to.the small heated surface vo.ume.

关键词： CVD 衬底加强镀层钢板激光束强化渗碳

CFD simulatio. o. so.id-liquid stirred tanks fo. lo. to.dense so.id lo.ding systems

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p.rticuo.o.y 2016年第6期14卷 16-33页

作者： Divyamaan Wadnerkar Mo.es o. Tade Vishnu K. p.reek Ranjeet p. Utikar Dep.rtment o. Chemical Engineering Curtin University Perth WA 6102 Australia

The hydro.ynamics o. susp.nsio. o. so.ids in liquids are critical to.the design and p.rfo.mance o. stirred tanks as mixing systems. Mo.elling a multip.ase stirred tank at a high so.ids co.centratio. is co.p.ex o.ing to.p.rticle-p.rticle and p.rticle-wall interactio.s which are generally neglected at lo. co.centra- tio.s. Mo.t mo.els do.no. co.sider such interactio.s and deviate significantly fro. exp.rimental data. Furthermo.e, drag fo.ce, turbulence and turbulent disp.rsio. p.ay a crucial ro.e and need to.be p.ecisely kno.n in p.edicting lo.al hydro.ynamics. Therefo.e, critical facto.s such as the mo.elling ap.ro.ch, drag, disp.rsio., co.fficient o. restitutio. and turbulence are examined and discussed exhaustively in this p.p.r. The Euler-Euler ap.ro.ch with kinetic theo.y o. granular flo., Syamlal-o.Brien drag mo.el and Reyno.ds stress turbulence mo.el p.o.ide realistic p.edictio.s fo. such systems. The co.tributio. o. the turbulent disp.rsio. fo.ce in imp.o.ing the p.edictio. is marginal but canno. be neglected at lo. so.ids vo.ume fractio.s. Inferences drawn fro. the study and the finalised mo.els will be instrumen- tal in accurately simulating the so.ids susp.nsio. in stirred tanks fo. a wide range o. co.ditio.s. These mo.els can be used in simulatio.s to.o.tain p.ecise results needed fo. an in-dep.h understanding o. hydro.ynamics in stirred tanks.

关键词： So.id-liquid stirred tanks Co.p.tatio.al fluid dynamics Simulatio. ap.ro.ch Drag mo.el Turbulence mo.el

o. Ro.m-Temp.rature Inversio. o. Ep. Signals o. p. Centre in Synthetic Diamo.d

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Chinese p.ysics Letters 2009年第1期26卷 317-320页

作者： G. G. Fedo.uk o. N. p.0}lo.skaya Institute o. p.ysics University of Szczecin Szczecin 70-451 Poland Dep.rtment o. p.ysics Belarusian State University Minsk 220030 Belarus

Ro.m-temp.rature inversio. o. Ep. abso.p.io. signals o. p. centre in synthetic diamo.d is studied by the transient nutatio. technique. Use o. the bichro.atic field, co.sisting o. a transverse micro.ave field and lo.gitudinal radio.frequency field, allo.s to.investigate the dynamics o. p. centres in the same field co.figuratio. as in cw Ep. sp.ctro.eters. It is sho.n that the annealing decreases the p. centre co.centratio. and, resp.ctively, increases the sp.n-sp.n relaxatio. time. As a result, the p.rio.ic inversio. （nutatio.） o. the p. centre abso.p.io. signal is o.served lo.ger. It is assumed that the p. centre signal inversio., which was p.evio.sly o.served by cw Ep., might be caused by the Blo.h-Siegert effect in the bichro.atic field.

关键词： field emissio. mo.ybdenum dio.ide enhancement facto.

Dielectro.ic Reco.binatio. Rate Co.fficients fo. Nickel-like Ytterbium

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Chinese Jo.rnal o. Lasers 1996年第3期B5卷 242-247页

作者： ZHAo.Libo. LI Shichang(Institute o. p.ysics, Academic Sinica, p. o. Bo. 603, Beijing 100080,Institute o. Ap.lied p.ysics and Co.p.tatio.al Mathematics, p. o. Bo. 8009, Beijing, China) Inst o. p.ysics Academia Sinica Beijing China

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关键词： dielectro.ic reco.binatio. auto.o.izing state Auger rate