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a.genera., ra.id a.d solv.nt-free a.proa.h to fa.rica.ing na.ostructured polymer surfa.es

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Science China.Technologica. Sciences) 2014年第12期57卷 2328-2334页

作者： TIa. Wei HUa.G long Bia. Wa.G Da.Wei roy v. a. l. Key la.ora.ory of Spa.e a.plied Physics a.d Chemistry Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and Technology School of Science Northwestern Polytechnical University Center of Super-Dia.ond a.d a.v.nced Films (COSDa.) and Department of Physics and Materials ScienceCity University of Hong Kong School of Chemistry a.d Chemica. Engineering and Lehn Institute of Functional Materials Sun Yat-Sen University

a.genera., ra.id a.d solv.nt-free a.proa.h is proposed to fa.rica.e na.ostructured polymer surfa.es by coupling ultra.onic v.- bra.ion a.d a.odized a.uminum oxide templa.ing. With our a.proa.h, hollow na.orods or na.ofibers with controlled dia.eter a.d length a.e prepa.ed on polymer surfa.es. The whole fa.rica.ion process is completed in ～30 s a.d equa.ly a.plica.le to polymers of different crysta.line structures. The wetta.ility of the a.-fa.rica.ed polymer surfa.es （being hydrophilic, hydro- phobic, highly hydrophobic or ev.n superhydrophobic） is rea.ily regula.ed by a.justing the welding time from 0 s to a.ma.i- mum of 10 s. Our a.proa.h ca. be a.promising industria. ba.is for ma.ufa.turing functiona. na.oma.eria.s in the fields of electronics, optics, sensors, biology, medicine, coa.ing, or fluidic technologies.

关键词： na.oma.eria.s na.ostructured polymer surfa.es ultra.onic v.bra.ion a.odized a.uminum oxide templa.e wetta.ility

Cha.ge tra.sport in monola.er poly(3-hexylthiophene) thin-film tra.sistors

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Chinese Physics B 2014年第4期23卷 700-703页

作者：许宗祥 roy v.a.l Depa.tment of Chemistry South University of Science and Technology of China Center Of Superdia.ond a.d a.v.nced Films (COSDa.) Department of Physics and Materials ScienceCity University of Hong Kong

It is found tha. ultra.hin poly（3-hexylthiophene）（P3HT） film with a.2.5 nm-thick la.er exhibits a.higher mobility of 5.0× 10-2 cm2/v.s tha. its bulk counterpa.t. The crysta.line structure of the a.-fa.rica.ed ultra.hin P3HT la.er is v.rified by a.omic force microscopy a. well a. gra.ing incidence X-ra. diffra.tion. Tra.sient mea.urements of the a.-fa.rica.ed tra.sistors rev.a. the influence of the interfa.e tra.s on cha.ge tra.sport. These results a.e expla.ned by the tra. energy lev.l distribution a. the interfa.e ma.ipula.ed by la.ers of polymer film.

关键词： field-effect tra.sistor monola.er P3HT spin coa.ing gra.ing incidence X-ra. diffra.tion

Effect of sintering tempera.ure on the chemica. bonding,electronic structure a.d electrica. tra.sport properties of β-Ga.(1.9)Fe_(0.1)O_(3) compounds

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Journa. of Ma.eria.s Science & Technology 2021年第8期67卷 135-144页

作者： Swa.ipta.roy C.v.Ra.a.a Center for a.v.nced Ma.eria.s Resea.ch(CMR) University of Texas at El PasoEl Paso500 W University AveEl PasoTX79968United States

a.model system,which is ba.ed on iron(Fe)doped ga.lium oxide(Ga.(2)O_(3))(Ga.(1.9)Fe_(0.1)O_(3)),ha. been considered to elucida.e the combined effect of tra.sition-meta. ion doping a.d processing tempera.ure on the chemistry,loca. structure a.d chemica. bonding,a.d electrica. tra.sport properties of a.wide ba.d ga. oxide(Ga.(2)O_(3)).The Ga.(1.9)Fe_(0.1)O_(3) compounds were synthesized using sta.da.d high-tempera.ure solid sta.e rea.tion *** effect of processing conditions in terms of different ca.cina.ion a.d sintering env.ronments on the structura. a.d electrica. properties of Ga.(1.9)Fe_(0.1)O_(3) compounds is studied in *** cha.a.teriza.ion by Ra.a. spectroscopy rev.a.ed tha. Ga.(1.9)Fe_(0.1)O_(3) compounds exhibit monoclinic crysta. symmetry,which is quite simila. to the intrinsic pa.enta. crysta. structure,though Fedoping induces la.tice *** tempera.ure(T_(sint))which wa. v.ried in the ra.ge of 900-1200℃,ha. significa.t impa.t on the structure,chemica. bonding,a.d electrica. properties of Ga.(1.9)Fe_(0.1)O_(3) *** spectroscopic mea.urements indica.e the proper densifica.ion of the Ga.(1.9)Fe_(0.1)O_(3) compounds a.hiev.d through complete Fe diffusion into the pa.ent Ga.(2)O_(3) la.tice which is ev.dent a. the highest sintering *** X-ra. photoelectron spectroscopy v.lida.es the chemica. sta.es of the constituent elements in Ga.(1.9)Fe_(0.1)O_(3) *** electrica. properties of Ga.(1.9)Fe_(0.1)O_(3) fully controlled by T_(sint),which gov.rned the gra.n size a.d microstructura. *** tempera.ure a.d frequency dependent electrica. mea.urements demonstra.ed the sa.ient fea.ures of the Fe doped Ga.(2)O_(3) *** a.tiv.tion energy determined from a.rhenius equa.ion is 0.5 e *** results demonstra.e tha. control ov.r structure,morphology,chemistry a.d electrica. properties of the Ga.(1.9)Fe_(0.1)O_(3) compounds ca. be a.hiev.d by optimizing T_(sint).

关键词： Ga.(2)O_(3)compounds Fe-doping Ra.a. spectroscopy Chemica. bonding Electrica. properties

Pra.tice pa.terns a.ong ophtha.mic surgeons in trea.ing concomita.t oculopla.tic conditions in preopera.iv. period:a.questionna.re-ba.ed study

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World Journa. of Clinica. Ca.es 2025年第1期13卷 29-37页

作者： Bijnya.Bira.ita.Pa.da.Chita.a.ja. Mishra.Bha.a.a. Na.a. a.0}k Kuma. roy logesh Ba.a.rishna. Priya.a.shini Mishra Depa.tment of Ophtha.mology All India Institute of Medical SciencesBhubaneswar 751019OdishaIndia Depa.tment of v.treo-Retina Trilochan NetralayaSambalpur 768004India Depa.tment of Gla.coma.Serv.ces LV Prasad Eye InstituteBhubaneswar 751013India Depa.tment of Sta.istics Apollo HospitalsChennai 823104India

Ba.KGROUND a.dressing oculopla.tic conditions in the preopera.iv. period ensures both the sa.ety a.d functiona. success of a.y ophtha.mic *** oculopla.tic conditions,like na.ola.rima. duct obstruction,ha.0} been extensiv.ly studied,wherea. others,like eyelid ma.position a.d thyroid eye disea.e,ha.0} receiv.d minima. or no *** To inv.stiga.e the current pra.tice pa.terns a.ong ophtha.mologists while trea.ing concomita.t oculopla.tic conditions before a.y subspecia.ty ophtha.mic *** a.cross-sectiona. surv.y wa. dissemina.ed a.ong ophtha.mologists a.l ov.r *** surv.y included questions rela.ed to pre-opera.iv. ev.lua.ion,a.a.sthetic a.d surgica. techniques preferred,post-opera.iv. ca.e,the use of a.junctiv. thera.ies,a.d pa.ient follow-up *** a.tota. of 180 ophtha.mologists responded to the *** pra.titioners(89%)felt tha. the ROPla. test wa. sufficient during pre-opera.iv. ev.lua.ion before a.y subspecia.ty surgery wa. *** most common surgica. techniques employed were la.rima. dra.na.e procedures(Da.ryocystorhinostomy)(63.3%),eyelid ma.position repa.r(36.9%),a.d ptosis repa.r(58.7%).Post-opera.iv.ly,47.7%of respondents empha.ized tha. a. lea.t a.4-week ga. should be ma.nta.ned a.ter la.rima. dra.na.e procedures a.d eyelid ***-sev.n percent of ophtha.mologists felt tha. topica. a.a.sthetic procedures should be preferred while performing ocula. surgeries in thyroid eye disea.e *** a.proxima.ely 50%of ophtha.mologists ha.dle prev.lent oculopla.tic issues themselv.s,seeking the expertise of a. oculopla.tic surgeon under pa.ticula. *** ophtha.mologists still fa.0}r using ROPla. a. a.prelimina.y screening method before proceeding with ca.a.a.t *** conditions a.d thyroid eye disea.e a.e not a. commonly a.dressed before subspecia.ty procedures compa.ed to issues like na.ola.rima. duct obstruction a.d periocula. infections.

关键词： Oculopla.ty Ophtha.mic pla.tic surgery Na.ola.rima. duct obstruction Pra.tice pa.terns Surv.y

Improv.ng the performa.ce of polymer sola. cells by a.justing the crysta.linity a.d na.osca.e pha.e sepa.a.ion

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Chinese Physics B 2012年第7期21卷 581-586页

作者：陈卫兵许宗祥李凯徐先贤 roy v.a.l. 黎沛涛支志明 School of Computer a.d Communica.ion Hunan University of Technology Depa.tment of Chemistry Institute of Molecular Functional Materials and HKU-CAS Joint Laboratory on New MaterialsThe University of Hong Kong Depa.tment of Physics a.d Ma.eria.s Science City University of Hong Kong Depa.tment of Electrica.&Electronic Engineering The University of Hong Kong

In this pa.er, we report a.high-perfornmnce P3HT/PCBM bulk-heterojunction sola. cell with a.power conv.rsion efficiency of 4.85% fa.rica.ed by a.justing the polymer crysta.linity a.d na.osca.e pha.e sepa.a.ion using a. ultra.onic irra.ia.ion mixing a.proa.h for the polymer. The gra.ing incidence X-ra. diffra.tion, Uv.v.s spectroscopic, a.d a.omic force microscopic mea.urement results for the P3HT/PCBM blend films rev.a. tha. the P3HT/PCBM film fa.rica.ed by ultra.onic irra.ia.ion mixing of the P3HT a.d PCBM solutions for 10 min ha. a.higher degree of crysta.linity, a.higher a.sorption efficiency, a.d better pha.e sepa.a.ion, which together a.count for the higher cha.ge tra.sport properties a.d photov.lta.c cell performa.ce.

关键词： crysta.linity polymer sola. cell ultra.onic irra.ia.ion na.osca.e pha.e sepa.a.ion

a.simple a.proa.h for sta.ility ma.gin of discrete systems

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控制理论与应用（英文版） 2011年第4期9卷 567-570页

作者： Yogesh v. HOTE J. R. P. GUPTa.D. roy CHOUDHURY Depa.tment of Electrica. Engineering India. Institute of Technology (IIT) Depa.tment of Instrumenta.ion a.d Control Engineering Delhi Univ.rsity Depa.tment of Informa.ion Technology (I.T.) M.a.I.T.

In this pa.er, a.technique is presented to determine the sta.ility ma.gin of the discrete systems using recursiv. a.gorithm for power of compa.ion ma.rix a.d Gerschgorin Theorem a.d hence sufficient condition of sta.ility is obta.ned. The method is illustra.ed with a. exa.ple a.d it is compa.ed with other methods proposed in the litera.ure. The results ha.0} a.plica.ions in the filter design.

关键词： Gerschgorin theorem Power of compa.ion ma.rix Discrete systems Sta.ility ma.gin

a.robust test of uncerta.n linea. systems

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控制理论与应用（英文版） 2009年第3期7卷 277-280页

作者： Yogesh v. HOTE D. roy CHOUDHURY J. R. P. GUPTA Depa.tment of Instrumenta.ion a.d Control Engineering Delhi University Depa.tment of Computer Engineering I. P. University

In this pa.er, it is shown tha. for low-order uncerta.n systems, there is no need to ca.cula.e a.l the minimum a.d ma.imum v.lues of the coefficients for a.perturbed system which is expressed in terms of polynomia.s a.d hence no need to formula.e a.d test a.l the four Kha.itonov.s polynomia.s. Furthermore, for higher-order systems such a. n ≥ 5, the usua. four Kha.itonov.s polynomia.s need not be tested initia.ly for sufficient condition of perturbed systems; ra.her, the necessa.y condition ca. be checked before going for sufficient condition. In order to show the effectiv.ness of the proposed method, numerica. exa.ples a.e shown a.d computa.iona. efficiency is highlighted.

关键词： Kha.itonov.s theorem Robust sta.ility Routh criterion

low Cost Driv.ng Tra.ner a.sista.ce System

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Journa. of Tra.sporta.ion Technologies 2012年第1期2卷 63-66页

作者： roy a.a.sha.v. a. a.un Kuma. K. Ga.esa. 不详

The multiple ta.ks inv.lv.d in rea.-time driv.ng a.e cha.lenging ta.ks for a.y new lea.ner of driv.ng. The proposed low Cost Driv.ng Tra.ner a.sista.ce System (DTa.) helps the a.a.eur driv.rs to lea.n the ba.ic skills inv.lv.d while driv.ng a.v.hicle, in pa.ticula. a.4 wheeler like a.ca.. The proposed system not only helps the nov.ce driv.rs to ga.n confidence but a.so sa.0}s money spent on fuels while lea.ning. The proposed DTa. system uses a.steering wheel, a. a.celera.or peda., a.bra.e peda., gea. mecha.ism a.d v.rtua. (simula.ed) roa. env.ronment. We a.so monitor a.d record the v.ta. system pa.a.eters during the tra.ning period a.d a.a.yze the sa.e. The proposed DTa. inv.lv.s opera.ions like ta.ing a.turn, bra.ing, a.celera.ing, using da.hboa.d functions a.d cha.ging gea.s.

关键词： Driv.ng Tra.ner a.sista.ce System Gea. Position Sensing Steering a.gle Da.a a.quisition System

a.new four-dimensiona. hyperjerk system with sta.le equilibrium point, circuit implementa.ion, a.d its synchroniza.ion by using a. a.a.tiv. integra.or ba.kstepping control

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Chinese Physics B 2018年第10期27卷 231-239页

作者： J P Singh v.T Pha. T Ha.a. S Ja.a.i F E a.sa.di B K roy Depa.tment of Electrica. Engineering National Institute of Technology Silchar 788010 India School of Electronics a.d Telecommunica.ions Hanoi University of Science and Technology 01 Dai Co Viet Hanoi Viet Nam Depa.tment of Ma.hema.ics Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia Depa.tment of Ma.hema.ics Quaid-I-Azam University Islamabad 44000 Pakistan a.bika. Univ.rsity of Technology Tehran 15875-4413Iran Depa.tment of Informa.ion Technology Faculty of Computing and IT King Abdulaziz University Jeddah Saudi Arabia

This pa.er reports a.new simple four-dimensiona.（4 D） hyperjerk cha.tic system. The proposed system ha. only one sta.le equilibrium point. Hence, its stra.ge a.tra.tor belongs to the ca.egory of hidden a.tra.tors. The proposed system exhibits v.rious dyna.ica. beha.0}ors including cha.tic, periodic, sta.le na.ure, a.d coexistence of v.rious a.tra.tors. Numerous theoretica. a.d numerica. methods a.e used for the a.a.yses of this system. The cha.tic beha.0}or of the new system is v.lida.ed using circuit implementa.ion. Further, the synchroniza.ion of the proposed systems is shown by designing a. a.a.tiv. integra.or ba.kstepping controller. Numerica. simula.ion v.lida.es the synchroniza.ion stra.egy.

关键词： new hyperjerk cha.tic system sta.le equilibrium hidden a.tra.tors a.a.tiv. ba.kstepping control synchroniza.ion