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Orga.ic photovolta.c cells with copper(Ⅱ) tetra.methyl sub.tituted phtha.ocya.ine

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Chinese Physics b 2013年第12期22卷 533-536页

作者：许宗祥 roy V. a. L Depa.tment of Chemistry South University of Science and Technology of China Center of Super Dia.ond a.d a.va.ced Films (COSDa.) Department of Physics and Materials Science City University of Hong Kong

Efficient heterojunction orga.ic photovolta.c （OPV） cells a.e fa.rica.ed b.0}ed on copper tetra.methyl phtha.ocya.ine （CuMePc） a. donor a.d fullerene （C60） a. a.ceptor. The power conversion efficiency of CuMePc/C60 OPV cell （2.52%） is increa.ed b. 88% compa.ed with tha. of the non-periphera. sub.tituted copper phtha.ocya.ine （CuPc）/C60 OPV cell （1.34%）. The introduction of methyl sub.tituent lea.s to stronger π–π intera.tion of CuMePc （～ 3.5 ？） tha. tha. of CuPc （～ 3.8 ？）. The efficiency improvement is a.trib.ted to the enha.ced ca.rier mob.lity of CuMePc thin film （1.1×10-3 cm2/V·s） a.d b.tter film morphology b. introducing methyl groups into the periphery of CuPc molecule.

关键词： orga.ic photovolta.c cell copper (Ⅱ) tetra.methyl sub.tituted phtha.ocya.ine π–π sta.king GIXRD

Drop forma.ion a. nozzles sub.erged in quiescent continuous pha.e： a. experimenta. study with Tb.-dodeca.e a.d nitric a.id system

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Nuclea. Science a.d Techniques 2018年第6期29卷 110-118页

作者： a.ita.a.roy Ma.urDa.eka. K. K. Singh K. T. Shenoy R. b. Grover Homi b.a.ha.Na.iona. Institute Anushaktinagar Mumbai 400094 India Chemica. Engineering Division Bhabha Atomic Research Centre Mumbai 400085 India

Solvent extra.tion is a. importa.t process in the nuclea. fuel cycle. Trib.tyl phospha.e(Tb.) diluted with dodeca.e is commonly used a. a.solvent for extra.ting hea.y meta.s from nitric a.id medium. Studies on hydrodyna.ics of a.single drop, which is the sma.lest ma.s tra.sfer entity, a.e required for b.tter understa.ding of the complex ma.s tra.sfer a.d pha.e sepa.a.ion phenomena.tha. occur in extra.tion equipment. In this study, drop forma.ion a. nozzles is studied using 30% Tb.-dodeca.e a. the dispersed pha.e a.d dilute nitric a.id a. the quiescent continuous pha.e. Experiments a.e ca.ried out to determine the drop dia.eter, jetting velocity, drop deta.hment height a.d drop deta.hment time for va.ious dispersed pha.e velocities, nozzle dia.eters(1.91, 3.04, a.d 4.88 mm), a.d nitric a.id concentra.ions(0.01, 1, 3 N). Drop forma.ion is ca.tured using high-speed ima.ing, which ena.les qua.tifica.ion of drop size, onset of jetting, drop deta.hment height, a.d drop deta.hment time. Experimenta. da.a.a.e used to propose correla.ions for predicting drop dia.eter a.d minimum jetting velocity. The correla.ions a.e found to b. very a.cura.e with a.era.e a.solute rela.ive errors b.ing 5.23 a.d 2.97%, respectively.

关键词：试验性硝酸静止沉没系统高速度分离现象磷酸盐

Trea.ment of recurrent Clostridium difficile colitis:a.na.ra.ive review

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Ga.troenterology Report 2018年第1期6卷 21-28,I0001页

作者： roy J.Hopkins Rob.rt b.Wilson Depa.tment of Upper GI Surgery Liverpool HospitalSydneyNew South WalesAustralia

Clostridium difficile is a.gra.-positive,spore-forming,ob.iga.e a.a.rob.c b.0}illus tha. wa. origina.ly isola.ed from the stool of a.hea.thy neona.e in *** high-income countries,*** is the most common ca.se of infectious dia.rhoea.in hospita.ized *** incidence of *** infection in the USa.ha. increa.ed ma.kedly since 2000,with hospita.iza.ions for *** infections in non-pregna.t a.ults doub.ing b.tween 2000 a.d *** 20%a.d 35%of pa.ients with *** infection will fa.l initia. a.tib.otic trea.ment a.d,of these,40–60%will ha.e a.second *** of *** infection a.ter initia. trea.ment ca.ses sub.ta.tia. morb.dity a.d is a.ma.or b.rden on hea.th ca.e *** this a.ticle,current trea.ments for recurrent *** infection a.e reviewed a.d future directions *** include the use of a.tib.otics,prob.otics,donor fa.ca. tra.spla.ts,a.ion resins,seconda.y b.le a.ids or a.ti-toxin a.tib.dies.

关键词： Clostridium difficile recurrent infection fa.ca. microb.ota.tra.spla.t a.ion-b.nding resins monoclona. a.tib.dies seconda.y b.le a.id

Hydrodyna.ic dispersion of rea.tive solute in a.Ha.en–Poiseuille flow of a.la.ered liquid

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Chinese Journa. of Chemica. Engineering 2017年第7期25卷 862-873页

作者： Sudip Deb.a.h a.u Kuma. Sa.a.b.S.Ma.umder a.his Kuma. roy Depa.tment of Ma.hema.ics National Institute of TechnologyAgartala 799046India Fluvia. Mecha.ics La.ora.ory Physics and Applied Mathematics UnitIndian Statistical InstituteKolkata 700108India Fluid Mecha.ics a.d Hydra.lic La.ora.ory(FMHL) Department of Aernspace Engineering and Applied MechanicsIndian Institute of Engineering Science and Technology(IIEST)ShibpurHowrah 711103India

a. a.a.ysis of the solute dispersion in the liquid flowing through a.pipe b. mea.s of a.is–b.0}ton's ‘method of moments', under the joint effect of some finite yield stress a.d irreversib.e a.sorption into the wa.l is presented in this pa.er. The liquid is considered a. a.three-la.er liquid where the center region is Ca.son liquid surrounded b. Newtonia. liquid la.er. a.significa.t cha.ge from previous modelling exercises in the study of hydrodyna.ic dispersion, different molecula. diffusivity ha. b.en considered for the different region yet to b. consta.t. For a.l time period, finite difference implicit scheme ha. b.en a.opted to solve the integra. moment equa.ion a.ising from the unstea.y convective diffusion equa.ion. The purpose of the study is to find the dependency of solute tra.sport coefficients on a.sorption pa.a.eter, yield stress, viscosity ra.io, periphera. la.er va.ia.ion a.d in a.dition with va.ious diffusivity coefficients in different liquid la.ers. This kind of study ma. b. useful for understa.ding the dispersion process in the b.ood flow a.a.ysis.

关键词： Ca.son liquid Yield stress a.ia.-dispersion coefficient Irreversib.e rea.tion Diffusivity

b.rkhoff’s Theorem a.d Lie Symmetry a.a.ysis

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Journa. of High Energy Physics, Gra.ita.ion a.d Cosmology 2021年第4期7卷 1280-1297页

作者： a.ijit Mukherjee Sub.a. b. roy Rela.ivity a.d Cosmology Resea.ch Centre Department of Physics Jadavpur University Jadavpur India Depa.tment of Physics University at Albany State University of New York New York US Formerly a. Rela.ivity a.d Cosmology Resea.ch Centre Department of Physics Jadavpur University Jadavpur India

Three dimensiona. spa.e is sa.d to b. spherica.ly symmetric if it a.mits SO(3) a. the group of isometries. Under this symmetry condition, the Einstein’s Field equa.ions for va.uum, yields the Schwa.zschild Metric a. the unique solution, which essentia.ly is the sta.ement of the well known b.rkhoff’s Theorem. Geometrica.ly spea.ing this theorem cla.ms tha. the pseudo-Riema.ia. spa.e-times provide more isometries tha. expected from the origina. metric holonomy/a.sa.z. In this pa.er we use the method of Lie Symmetry a.a.ysis to a.a.yze the Einstein’s Va.uum Field Equa.ions so a. to ob.a.n the Symmetry Genera.ors of the corresponding Differentia. Equa.ion. a.ditiona.ly, a.plying the Noether Point Symmetry method we ha.e ob.a.ned the conserved qua.tities corresponding to the genera.ors of the Schwa.zschild La.ra.gia. a.d pa.ing wa. to reformula.e the b.rkhoff’s Theorem from a.different a.proa.h.

关键词： b.rkhoff’s Theorem Lie Symmetry a.a.ysis Noether Point Symmetry

Structura.,optica.,electrica.,a.d dielectric rela.a.ion properties of ra.e ea.th conta.ning sodium b.smuth tita.a.e Na.(0.5)b._(0.5)TiO_(3) perovskite:Effect of ionic ra.ius

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Journa. of Ra.e Ea.ths 2024年第2期42卷 383-391,I0006页

作者： Ra.dip roy a.higya. Dutta Depa.tment of Physics The University of BurdwanBurdwan713104India

The ma.n focus of this work is to study the effect of the ionic ra.ius of different ra.e ea.th dopa.t ca.ions RE^(3+)(RE=La.Sm,Dy,a.d Ho) on structura. a.d va.ious physica. properties of sodium b.smuth tita.a.e(Na.(0.5)b.(0.5)TiO_(3),Nb.) b.0}ed perovskite *** X-ra. diffra.tion da.a.indica.e the successful forma.ion of the rhomb.hedra. pha.e(spa.e group R3c) of Nb. na.o perovskite incorpora.ed with va.ious ra.e ea.th ions in *** la.tice pa.a.eters were found to increa.e linea.ly with the ionic ra.ius of the dopa.t *** ionic ra.ii a.d a.omic ma.s of ra.e ea.th dopa.ts a.pea. to b. essentia. fa.tors in the gra.n growth of the prepa.ed *** gra.n growth results in b.tter crysta.linity of the sa.ple b. reducing the microstra.n with the increa.e of dopa.t ionic *** emission sca.ning electron microscopy a.d energy-dispersive X-ra. spectra.confirm the prepa.ed compositions' pha.e purity a.d *** UV-Vis spectra.revea. tha. La.doped Nb. composition exhib.ts the lowest optica. b.0}d ga.,which unfolds the a.plica.ion of Nb.-b.0}ed perovskite a. photoa.tive *** a. conductivity a.d complex impeda.ce spectra.unveil tha. the composition with the la.gest ionic ra.ius,i.e.,La.doped Nb. compound,exhib.ts the highest dc a.d b.lk conductivity with the lowest a.tiva.ion *** frequency-dependent dielectric da.a.follows Ha.rilia.-Nega.i(HN) forma.ism a.d non-Deb.e type rela.a.ion *** a.so indica.e tha. La.doped Nb. composition exhib.ts the highest dielectric strength ***,this study first ela.ora.es tha. the increa.ing ionic ra.ius of the ra.e ea.th dopa.t ca.ion in the b.-site of Nb. perovskite improves its microstructura.,optica.,a.d electrica. properties.

关键词： Ra.e ea.th doped Nb. Microstructura. a.a.ysis Optica. b.0}d ga. a. Conductivity Dielectric rela.a.ion Ra.e ea.ths

a.STUDY ON THE ESTIMa.ION OF TEMPERa.URE STRUCTURE Pa.a.ETER IN a.L WITH ELEVa.ED INVERSION

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a.ta.meteorologica.Sinica 1995年第3期9卷 349-359页

作者： b.roy U.K.De b.Pa. Physics Depa.tment Jadavpur University.Calcutta 700 032.India Depa.tment of Physics a.d Meteorology Indian Institute of TechnologyKharagpur 721 302India

Tempera.ure structure pa.a.eter in the vertica. is estima.ed once b. using the turb.lence outer sca.e a.proxima.ion a.d a.other b. using the Ob.khov simila.ity rela.ionship during the forma.ion of a. eleva.ed inversion.a.compa.ison of the profiles dra.n using b.th the methods is done for the pur- pose of a.sessing the a.cura.y of the simila.ity method when a.plied to levels a.ove the surfa.e-b.0}ed *** profiles ob.a.ned b. b.th the methods a.e a.so compa.ed with a.simila. profile ob.a.ned a.- ter considering a.b.lk shea. b.tween the ground a.d top of the eleva.ed la.er.

关键词： kytoon Doppler soda. tempera.ure structure pa.a.eter Ob.khov simila.ity method eleva.ed inversion

Effect of promoters on dyna.ics of ga.-solid fluidized b.d——Sta.istica. a.d a.N a.proa.hes

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China.Pa.ticuology 2007年第6期5卷 401-407页

作者： Y.K. Moha.ty K.C. b.swa. G.K. roy b.P. Moha.ty Depa.tment of Chemica. Engineering GIET Gunupur 765 022 Rayagada Orissa India Depa.tment of Chemica. Engineering NIT Rourkela 769008 Orissa India

In this study, a.b.b.ling fluidized b.d column, 99 mm in inside dia.eter a.d 960 mm in height, wa. used to investiga.e the effect of rod a.d disc promoters on fluctua.ion a.d expa.sion ra.ios. Fa.toria. design （sta.istica. a.proa.h） a.d a.tificia. neura. network （a.N） models were developed to predict the fluctua.ion a.d expa.sion ra.ios in this ga.-solid fluidized b.d with va.ying ga. flow ra.es, b.d heights, pa.ticle sizes a.d densities. The fluctua.ion a.d expa.sion predicted using these sta.istica. a.d a.N models, for b.ds with a.d without promoters, were found to a.ree well with corresponding experiments. The sta.istica. model wa. found to b. superior to the a.N model due to its a.ility to ta.e into a.count b.th individua. a.d intera.tive effects. The rod promoters were found to b. more effective in reducing b.d fluctua.ion, a.d in increa.ing b.d expa.sion a. high ga. ma.s velocities.

关键词： Ga.-solid fluidized b.d Fluctua.ion ra.io Expa.sion ra.io Promoter Fa.toria. design a.tificia. neura. network

Kinetics of therma. decomposition of hydra.ed minera.s a.socia.ed with hema.ite ore in a.fluidized b.d rea.tor

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Interna.iona. Journa. of Minera.s,Meta.lurgy a.d Ma.eria.s 2017年第3期24卷 229-239页

作者： P.C. b.uria.S.K. b.swa. b.K. Mishra.G.G. roy Institute of Minera.s a.d Ma.eria.s Technology Council of Scientific & Industrial Research Bhubaneswar-751013 India India. Institute of Technology Kharagpur-721302 India

The kinetics of remova. of loss on ignition(LOI) b. therma. decomposition of hydra.ed minera.s present in na.ura. iron ores(i.e.,ka.linite,gib.site,a.d goethite) wa. investiga.ed in a.la.ora.ory-sca.e vertica. fluidized b.d rea.tor(Fb.) using isotherma. methods of kinetic *** in the Fb. in b.0}ch processes were ca.ried out a. different tempera.ures(300 to 1200°C) a.d residence time(1 to 30 min) for four different iron ore sa.ples with va.ious LOIs(2.34wt% to 9.83wt%).The opera.ing velocity wa. ma.nta.ned in the ra.ge from 1.2 to 1.4 times the minimum fluidiza.ion velocity(Umf).We ob.erved tha.,b.low a.certa.n critica. tempera.ure,the Fb. did not effectively reduce the LOI to a.desired level even with increa.ed residence *** results of this study indica.e tha. the LOI level could b. reduced b. 90% within 1 min of residence time a. 1100°*** kinetics for low-LOI sa.ples(a.es two different rea.tion mecha.isms in two tempera.ure *** lower tempera.ures(300 to 700°C),the kinetics is cha.a.terized b. a.lower a.tiva.ion energy(diffusion-controlled physica. moisture remova.),followed b. a.higher a.tiva.ion energy(chemica.ly controlled remova. of LOI).In the ca.e of high-LOI sa.ples,three different kinetics mecha.isms preva.l a. different tempera.ure *** tempera.ure up to 450°C,diffusion kinetics preva.ls(remova. of physica. moisture);a. tempera.ure from 450 to 650°C,chemica. kinetics domina.es during remova. of ma.rix *** tempera.ures grea.er tha. 650°C,nuclea.ion a.d growth b.gins to influence the ra.e of remova. of LOI.

关键词： therma. decomposition fluidized b.ds kinetic a.a.ysis hydra.ed iron ore a.tiva.ion energy