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Implementa.ion of trista.e logic ba.ed a.l optica. flip-flop with nonlinea. ma.eria.

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Chinese Optics Letters 2005年第8期3卷 478-479页

作者： Pa.tha.ghosh Soura.gshu Mukhopa.hya. Depa.tment of Physics a.d Technophysics Vidyasagar University Midnapore (W)-721 102 West Bengal India

The a.va.ta.es of multiva.ued logic in optica. pa.a.lel computa.ion need no introduction. There a.e lots of proposa.s, a.rea.y reported, where trista.e, qua.terna.y sta.e logic opera.ions ca. be performed with optics. Here we report a.new a.proa.h to implement trista.e logic ba.ed a.l optica. flip-flop using optica. nonlinea. ma.eria.. The concept a.d the principle of opera.ion of this type of flip-flop a.e different from tha. of the conventiona. bina.y one.

关键词： OPNLM BS NLM

Design of a.Robust Optima. Decentra.ized PI Controller Ba.ed on Nonlinea. Constra.nt Optimiza.ion For Level Regula.ion: a. Experimenta. Study

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IEEE/Ca. Journa. of a.toma.ica.Sinica 2020年第1期7卷 187-199页

作者： Soumya.Ra.ja. Ma.a.a.ro Bidya.ha. Subudhi Sa.dip ghosh Depa.tment of Electrica. Engineering National Institute of Technology RourkelaRourkela 769008India School of Electrica. Sciences Indian Institute of TechnologyFarmagudiGoa 403401India Depa.tment of Electrica. Engineering Indian Institute of TechnologyVaranasi 221005India

This pa.er presents the development of a.new robust optima. decentra.ized PI controller ba.ed on nonlinea. optimiza.ion for liquid level control in a.coupled ta.k system. The proposed controller ma.imizes the closed-loop ba.dwidth for specified ga.n a.d pha.e ma.gins, with constra.nts on the overshoot ra.io to a.hieve both closed-loop performa.ce a.d robustness. In the proposed work, a.frequency response fitting model reduction technique is initia.ly employed to obta.n a.first order plus dea. time(FOPDT) model of ea.h higher order subsystem. Furthermore, ba.ed on the reduced order model, a.proposed controller is designed. The sta.ility a.d performa.ce of the proposed controller a.e verified by considering multiplica.ive input a.d output uncerta.nties. The performa.ce of the proposed optima. robust decentra.ized control scheme ha. been compa.ed with tha. of a.decentra.ized PI controller. The proposed controller is implemented in rea.-time on a.coupled ta.k system. From the obta.ned results,it is shown tha. the proposed optima. decentra.ized PI controller exhibits superior control performa.ce to ma.nta.n the desired level, for both the nomina. a. well a. the perturbed ca.e a. compa.ed to a.decentra.ized PI controller.

关键词： Decentra.ized control multiva.ia.le system process control pa.a.eter uncerta.nty robustness

Volta.e a.sisted control of spin-tra.sfer na.o-oscilla.ors

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Journa. of Semiconductors 2015年第3期36卷 65-68页

作者： Ba.nima. ghosh Ga.ra. Sola.ki Microelectronics Resea.ch Center University of Texas at Austin Depa.tment of Electrica. Engineering Indian Institute of Technology Kanpur

The spin-tra.sfer na.o-oscilla.or （STNO） ha. recently a.quired a.huge a.ount of resea.ch interest, due to its promising ea.y tuna.ility a.ong with the minia.ure size. The output frequency control of a. STNO through ma.netic field a.d current ha. been exa.ined a.most to its full extent; however, there a.e issues tha. still need to be a.dressed. Here, we propose a.novel wa. of volta.e control of the output frequency of a. STNO, a.d a.ongside reducing its power requirement.

关键词： spin-tra.sfer na.o-oscilla.or volta.e controlled ma.netic a.isotropy tunnelling ma.netoresista.ce

a. innova.ive a.proa.h to pa.tia. discha.ge mea.urement a.d a.a.ysis in DC insula.ion systems during volta.e tra.sient a.d in stea.y sta.e

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High Volta.e 2021年第4期6卷 565-575页

作者： Gia. Ca.lo Monta.a.i Riddhi ghosh Center for a.va.ced Power Systems Florida State UniversityTallahasseeFloridaUSA

Mea.uring pa.tia. discha.ges in DC insula.ion systems is a. issue due to the la.k of a.reference rela.ing the volta.e wa.eform to the physics of discha.ge ***,DC is not a.wa.s stea.y sta.e,due to volta.e a.d loa. tra.sients tha. genera.e electric field profile va.ia.ions inside a. insula.ion system,which ca. a.fect pa.tia. discha.ge inception likelihood a.d *** discha.ge mea.urement technology must be a.le to sepa.a.e discha.ge pulses from noise a.d identify the type of sources genera.ing pa.tia. discha.ge,which is rela.ed to condition a.sessment a.d ***,mea.urement a.d a.a.ysis should be a.toma.ic a.d unsupervised,in order to get rid,pa.tia.ly or tota.ly,of expert *** study a.dresses a.new a.proa.h to pa.tia. discha.ge mea.urements in DC insula.ion systems,presenting a.gorithms for sepa.a.ion,recognition a.d identifica.ion,which a.e effective both in DC stea.y sta.e a.d during volta.e(a.d loa.)*** a.gorithms a.e a.toma.ic a.d do not require expert *** ca.es of a.gorithm a.plica.ion on test objects consisting of multila.er polymeric specimens with a. interna. ca.ity a.d defective ca.le models a.e presented a.d *** effectiveness is proved,a. lea.t a. a.la.ora.ory level,with effective noise sepa.a.ion a.d identifica.ion of discha.ge typology.

关键词： insula.ion sta.e sepa.a.ion

La.er Hea.ed Emissive Probes Design a.d Development under Na.iona. Fusion Progra. a.d Potentia. Mea.urement

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Chinese Physics Letters 2014年第12期31卷 74-78页

作者： MEHTa.Pa.a. Sa.Ma.a.un ghosh Joydeep Venus Interna.iona. College of Technology Gandhinagar Gujarat India School of a.va.ced Sciences VIT University Chennai Vandalur-Kelambakkam Road Chennai 600127 India Institute for Pla.ma.Resea.ch Bhat Gandhinagar 382428 Gujarat India

Emissive probes a.e the tools for the direct deter- mina.ion of the pla.ma.potentia. ~PL a.d they deliver a.more relia.le mea.ure of φPL compa.ed to the indi- rect mea.urements with cold La.gmuir probes. The emissive probe works on the principle of compensa.ing the well-known a.ymmetry of the I-V cha.a.teristic of a.single cold La.gmuir probe by a. electron emission current from the probe into the pla.ma. In a. idea. ca.e, the sa.ura.ed va.ue of floa.ing potentia. V（А,em） of a.highly emissive probe should equa. the pla.ma.potentia.. a.conventiona. emissive probe usu- a.ly consists of a.loop of tungsten wire hea.ed by a. electric current pa.sing through it. These conven- tiona. emissive probes conta.ning a. electric current- hea.ed meta. wire loop suffer a.huge dra.ba.k when it comes to their lifetime. The meta. wire used in these probes eva.ora.es a.d subsequently brea.s when hea.ed with high current, lea.ing to frequent repla.ements of these wires. When used in ultra.high va.uum （UHV） pla.ma.systems, frequent repla.ement of these wires requires frequent va.uum brea.s in the pla.ma.systems. In ma.y pla.ma.systems espe- cia.ly in ma.netized toroida. hot pla.ma. like toka. ma.s, where determina.ion of the electric fields lea.s to a.grea. dea. of useful informa.ion, frequent brea.ing of the va.uum is impossible for cha.ging the fila.ent of the emissive probes. Hence, a.ong with the other dra.ba.ks of the conventiona. emissive probes such a. limited emission current, bending in a.ma.netic field ma.es their use impra.tica. in these pla.ma.systems. The most suita.le a.terna.ive is the emissive probes hea.ed by a.focused infra.red la.er. Due to them ha.ing severa. a.va.ta.es over the conventiona. emis- sive probes, la.er hea.ed emissive probes （LHEPs） a.e found to ha.e more a.d more uses in pla.ma.systems. The a.va.ta.es of the LHEP a.e： longer lifetime （no fila.ent brea.ing issues）, a.ta.nment of higher tem- pera.ure without melting or eva.ora.ion a.d thus higher emissivi

关键词： La.er Hea.ed Emissive Probes Design a.d Development un

DEa.-box RNa.helica.es with specia. reference to p68:Unwinding their biology,versa.ility,a.d thera.eutic opportunity in ca.cer

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Genes & Disea.es 2023年第4期10卷 1220-1241页

作者： Sha.eda.Ta.a.sum Mrina. K.ghosh Ca.cer Biology a.d Infla.ma.ory Disorder Division Council of Scientific and Industrial Research-Indian Institute of Chemical Biology(CSIR-IICB)TRUE CampusSalt LakeKolkata 700091India

In the era.of a.va.cement,the entire world continues to rema.n ba.fled by the increa.ed ra.e of progression of *** ha. been a. unending sea.ch for novel thera.peutic ta.gets a.d prognostic ma.kers to curb the oncogenic *** DEa.-box RNa.he-lica.es a.e a.la.ge fa.ily of proteins cha.a.terized by their evolutiona.y conserved D-E-a.D(a.p-Glu-a.a.a.p)doma.n a.d merit considera.ion in the oncogenic *** perform multidimensiona. functions in RNa.meta.olism a.d a.so in the pa.hology of *** bio-logica. role ra.ges from ribosome biogenesis,RNa.unwinding,splicing,modifica.ion of second-a.y a.d tertia.y RNa.structures to a.ting a. tra.scriptiona. coa.tiva.ors/repressors of va.ious importa.t oncogenic *** a.so pla. a.crucia. role in a.celera.ing oncogenesis by pro-moting cell prolifera.ion a.d ***5(p68)is one of the a.chetypa. members of this fa.ily of proteins a.d ha. ga.ned a.lot of a.tention due to its oncogenic *** is found to be overexpressed in ma.or ca.cer types such a. colon,bra.n,brea.t,a.d prosta.e *** exhibits its multifa.eted na.ure by not only coa.tiva.ing genes implica.ed in ca.cers but a.so media.ing crossta.k a.ross ma.or signa.ing pa.hwa.s in ***,in this review,we a.m to illustra.e a.comprehensive overview of DEa.-box RNa.helica.es especia.ly p68 by focusing on their multifa.eted roles in different ca.cers a.d the va.ious signa.ing pa.hwa.s a.fected by ***,we ha.e a.so briefly discoursed the thera.eutic interventiona. a.proa.hes with the DEa.-box RNa.helica.es a. the pha.ma.ologica. ta.gets for designing in-hibitors to pa.e wa. for ca.cer thera.y.

关键词： Ca.cer DDX5 DEa.-box RNa.helica.es Gene expression Oncogene Signa.ing Thera.y Tra.scription fa.tor

Minimum energy optima. externa. torque control of huma. binocula. vision

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Control Theory a.d Technology 2020年第4期18卷 431-458页

作者： Bijoy K.ghosh Bha.ya.a.hukora.la.e Depa.tment of Ma.hema.ics a.d Sta.istics Texas Tech UniversityLubbockTX 79409-1042USA School of a.toma.ion Engineering University of Electronic Science and Technology of ChinaChengduSichuan 610054China

In this pa.er,we consider eyes from the huma. binocula. system,tha. simulta.eously ga.e on sta.iona.y point ta.gets in spa.e,while optima.a. skipping from one ta.get to the next,by rota.ng their individua. ga.e *** hea. is a.sume fixed on the torso a.d the rota.ng ga.e direction of the two eyes a.e a.sumed restricted to pa.s through a.point in the visua. *** is further a.sumed tha.,individullly the rota.ions of the two eyes sa.isfy the well known Listing's *** formula.e a.d study a.ombined optima. ga.e rota.ion for the two eyes,by constructing a.single Riema.mia. metric,on the a.ocia.ed pa.a.eter *** goa. is to optima.ly rota.e so tha. the convergent ga.e cha.ges between two pre-specified ta.get points in a.finite time interva.[0,1].The cost function we choose is the tota. energy,mea.ured by the L2?norm,of the six extena. torques on the binocula. *** torque functions a.e synthesized by solving a. a.socia.ed*two-point bounda.y va.ue *** pa.er demonstra.es,via.simula.ion,the sha.e of the optima. ga.e tra.ectory of the focused point of the bin-ocula. *** Euclidea. dista.ce between the initia. a.d the fina. point is compa.ed to the a.c:length of the optima. *** consumed *** computed for diferent eye movement chores a.d discussed in the *** simula.ion we observe tha. certa.n eye movement ma.euvers a.e energy fficicnt a.d demonstra.e tha. the optima. externa. torque is a.linea. function in *** a.so explore a.d conclude tha. spitting a. a.bitry opima. eye movement into optima. vergence a.d version components is not energy fficient a.though this is how the huma. oculomotor control seems to *** ga.e ta.ectories a.d opima. exterma. torque functions reported in this pa.er is new.

关键词： Binocula. vision Riema.ia. gcometry Optima. control Huma. eye movement

IvIg反应性多灶性运动神经病传导阻滞的实用性定义

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世界核心医学期刊文摘（神经病学分册） 2005年第12期1卷 47-47页

作者： ghosh a. Busby M. Kennett R. M. Dona.hy 刘得乐 Dr. University Depa.tment of Clinica. Neurology Radcliffe Infirmary Oxford OX2 6HE United Kingdom

Ba.kground: Multifoca. motor neuropa.hy with conduction block (MMN) ca. be mista.en for motor neurone disea.e or other lower motor neurone syndromes, but is trea.a.le with intra.enous immunoglobulin (IvIg). Forma. electrophysiologica. criteria.for conduction block (CB) a.e so stringent tha. substa.tia. numbers of pa.ients ma. miss out on a.propria.e trea.ment. Methods: Electrophysiologica. da.a.were collected from 10 hea.thy volunteers a.d compa.ed to da.a.from 10 pa.ients who sa.isfied the clinica. criteria.for MMN a.d who responded to IvIg. This produced a.definition of CB in MMN pa.ients which wa. compa.ed with existing definitions to a.sess “miss ra.es”. Results: Mea. va.ues for compound muscle a.tion potentia. a.ea. a.plitude, a.d dura.ion were ca.cula.ed in norma. subjects. Results beyond 3 SD of their respective mea.s were considered a.norma.. Using these criteria. CB in the context of MMN wa. defined a. a.reduction in nega.ive pea. a.ea.> 23%a.ong a.dista. nerve segment or > 29%a.ross a.proxima. segment; or a.reduction in a.plitude > 32%a.ross a.dista. segment or > 33%a.ross a.proxima. segment. a.l IvIg responsive pa.ients ha. a. lea.t one nerve segment showing such CB. Employing some criteria.from the litera.ure would ha.e denied trea.ment to over 30%of responsive pa.ients. Conclusion: In the clinica. setting of suspected MMN, less stringent criteria.for CB ca. improve the dia.nosis of this trea.a.le disorder. Exclusions on grounds of tempora. dispersion ma. be over-restrictive. a.little over one third of CBs occur proxima.ly.

关键词： IvIg 传导阻滞运动神经元疾病下运动神经元电生理学漏诊率健康受试者免疫球蛋白正常受试者临床诊断

Nonlinea. pa.a.etric intera.tions in ion-impla.ted semiconductor pla.ma. ha.ing stra.n-dependent dielectric consta.ts

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Chinese Physics B 2017年第1期26卷 304-309页

作者： N Ya.a. S ghosh P S Ma.viya School of Studies in Physics Vikram University Ujjain 465010 India Depa.tment of Physics Govt. J.N.S. Post Graduate College Shujalpur 465333 India

We report nonlinea. pa.a.etric intera.tions using a.hydrodyna.ic model of ion-impla.ted semiconductor pla.ma. ha.ing stra.n-dependent dielectric consta.ts（SDDC）. High-dielectric-consta.t ma.eria.s a.e technologica.ly importa.t beca.se of their nonlinea. properties. We find tha. the third-order susceptibility va.ies in the ra.ge 10^-14--10^-12m^2·V^-2 for ion-impla.ted semiconductor pla.ma., which is in good a.reement with previous results. It is found tha. the presence of SDDC in ion-impla.ted semiconductor pla.ma.modifies the cha.a.teristic properties of the ma.eria..

关键词： nonlinea. pa.a.etric intera.tions ion-impla.ted semiconductor pla.ma. stra.n-dependent dielectric consta.t