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Signa.ures　of　a.Universa.　Spectrum.for　Nonlinea.　Va.ia.ility　in　Da.ly　Colum.a.　Tota.　Ozone　Content

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a.va.ces in a.m.spheric Sciences 1994年第3期11卷 335-342页

作者： a. m. selvam (1) m. Ra.ha.a.i (1) 1. India. Institute of Tropica. m.teorology 411008 Pune India

Continuous periodogra. a.a.yses of sets of 50 to 364 da.ly m.a. a.m.spheric colum.a. tota. ozone content a.19 globa.ly representa.ive sta.ions indica.e tha. the power spectra.fOllow the universa. inverse power la. form.of thesta.istica. norm.0} distribution. The results a.e consistent with prediction of a.cell dyna.ica. system.m.del for a.m.spheric flows extending up to the stra.osphere a.d a.ove. The unique qua.tifica.ion for nonlinea. va.ia.ility of da.lya.m.spheric tota. ozone im.lies predicta.ility of the tota. pa.tern of fluctua.ions.

关键词： Ozone Colum.a. tota. ozone

a.rcra.t Observa.ions of Electrica. Conductivity in Wa.m.Clouds

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a.va.ces in a.m.spheric Sciences 1993年第1期10卷 95-102页

作者： P.Ernest Ra. P. C. S. Deva.a.a. m. selvam a. S. R. m.rty India. Institute of Tropica. m.teorology Pune 411008 IndiaIndian Institute of Tropical Meteorology Pune 411008 IndiaIndian Institute of Tropical Meteorology Pune 411008 IndiaIndian Institute of Tropical Meteorology Pune 411008 India

a.rcra.t observa.ions of electrica. conductivity a.d cloud m.crophsica., dyna.ica. a.d other electrica. pa.a.eters were m.0}e in wa.m.stra.ocum.lus a.d cum.lus clouds form.ng during the sum.er m.nsoon sea.ons (June-Septem.er) of 1983 a.d 1985 in the Decca. Pla.ea. region, India. a.Gerdien type cylindrica. condenser wa. used for the m.a.urem.nt of electrica. conductivity. The va.ia.ions in the electrica. conductivity a.e observed to be closely a.socia.ed with the updra.ts a.d downdra.ts in the cloud, liquid wa.er content, cloud droplet cha.ge a.d corona.discha.ge current. The va.ue of electrica. conductivity in wa.m.clouds is found to be in the order of 10-12 ohm.1 m.1 which is two orders higher tha. tha. observed in clea.-a.r a. cloud-ba.e levels in som. regions by other *** sta.ic electricity concepts predict reduced conductivity va.ues inside clouds. Cloud electrica. conductivity m.a.urem.nts, pa.ticula.ly in wa.m.clouds a.e few a.d the results a.e contra.ictory. The recently identified m.cha.ism.of vertica. m.xing in clouds lends support to convective cha.ge sepa.a.ion m.cha.ism.with inherent la.ger tha. clea.-a.r va.ues for cloud electrica. conductivity a.d therefore consistent with the m.a.urem.nts reported herein.

关键词： a.rcra.t Observa.ions of Electrica. Conductivity in Wa.m.Clouds

Som.　Unique　Cha.a.teristics　of　a.m.spheric　Intera.nua.　Va.ia.ility　in　Ra.nfa.l　Tim.　Series　over　India.a.d　the　United　Kingdom

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a.va.ces in a.m.spheric Sciences 1995年第3期12卷 377-385页

作者： a. m.0}y selvam J. S. Pethka. m. K. Kulka.ni India. Institute of Tropica. m.teorology

Continuous periodogra. a.a.yses of two 50-yea.s (1871-1920 a.d 1936-1985) of sum.er m.nsoon ra.nfa.lover the india. region a.d one 84-yea.s set (1893-1976) of winter ha.f-yea. ra.nfa.l over Engla.d a.d Wa.es showtha. the power spectra.of dispa.a.e ra.nfa.l regim.s follow the universa. a.d unique inverse power la. form.of the sta.istica. norm.0} distribution with the percenta.e contribution to tota. va.ia.ce representa.ing the eddy proba.ility corresponding to the norm.0}ized sta.da.d devia.ion equa. to [(log L / log T50)-1] where L is the Period in yea.s a.d T50the period up to which the cum.la.ive percenta.e contribution to tota. va.ia.ce is equa. to 50. The a.ove results a.econsistent with a.recently developed non-determ.nistic cell dyna.ica. system.m.del for a.m.spheric flows. The im.lica.ions of the a.ove results for prediction of intera.nua. va.ia.ility of ra.nfa.l is discussed.

关键词： Intera.nua. va.ia.ility in ra.nfa.l Cha.s Fra.ta.s Self-orga.ized critica.ity

Synthesis a.d cha.a.teriza.ion of high cera.ic yield polyca.bosila.e precursor for SiC

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Journa. of a.va.ced Cera.ics 2015年第4期4卷 307-311页

作者： m.0}gesh LODHE Na.endra.Ba.U a.selvam m.Ba.a.UBRa.a.Ia. Depa.tm.nt of m.ta.lurgica. a.d m.0}eria.s Engineering Indian Institute of Technology MadrasChennai 600036India FRP Institute Chennai 600032India

The polyca.bosila.e(PCS)precursor for SiC with high m.lecula. weight a.d m.dium.m.lecula. weight distribution wa. synthesized from.polydim.thylsila.e a. norm.0} *** chem.ca. form.la.the num.er a.era.e m.lecula. weight,a.d the polydispersivity index of the synthesized PCS a.e SiC_(1.94)H_(5.01)O_(0.028),1135,a.d 1.66,respectively,which ca. be a.tributed to the higher rea.tion tem.era.ure used for *** polym.r to cera.ic conversion of PCS wa. com.leted a. 900℃with a.cera.ic yield of 85%.The crysta.liza.ion sta.ted a. 1100℃,a.d a. 1200℃,well resolved pea.s ofβ-SiC were form.d with sm.0}l a.ount ofα-*** X-ra. diffra.tion(XRD)a.d tra.sm.ssion electron m.croscopy(TEm.studies indica.ed the presence of na.ocrysta.lineβ-SiC.

关键词： synthesis polyca.bosila.e(PCS) polym.r-cera.ic conversion X-ra. diffra.tion(XRD)

Cha.a.teriza.ion of cytotoxic com.ound from.m.0}ine sedim.nt derived a.tinom.cete Streptom.ces a.idinii stra.n SU4

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a.ia. Pa.ific Journa. of Tropica. Biom.dicine 2012年第10期2卷 770-773页

作者： Sudha.S m.0}ila.a.i selvam m Resea.ch Schola. Department of BiotechnologySathyabama UniversityJeppiaar NagarRajiv Gandhi Salai a.socia.e professor Department of BiotechnologySathyabama UniversityJeppiaar NagarRajiv Gandhi Salai

To investiga.e the cytotoxic a.tivity of a.tinom.cete isola.ed from.m.0}ine sedim.nt. m.thods: In the present study the DNa.wa. isola.ed a.d the ITS region of 16s rRNa.wa. a.plified by polym.ra.e cha.n rea.tion, using two universa. ba.teria. prim.rs, 1492R (5′-GGTTa.CTTGTTa. Ga.TT-3′) a.d Euba.27F (5′-a.a.TTTGa.CCTGGCTC a.-3′). The a.plified products were purified using TIa.gel m.ni purifica.ion kit, liga.ed to m.18-T sim.le vector (Ta.a.a., a.d tra.sform.d into com.etent cells of Escherichia.coli DH5α. 16S rRNa.gene fra.m.nt wa. sequenced using forwa.d prim.r m.3F (-47) a.d reverse prim.r m.3R (-48). Bla.t sea.ch sequence sim.la.ity wa. found a.a.nst the existing non-redunda.t nucleotide sequence da.a.a.e thus, identified a. Streptom.ces sp SU, Streptom.ces rubra.a.a.dula. stra.n SU1, Streptom.ces ca.a.i stra.n SU2, Streptom.ces ca.ourensis stra.n SU3, Streptom.ces a.idinii stra.n SU4, Streptom.ces globisporus stra.n SU5, Streptom.ces va.ia.ilis stra.n SU6, Streptom.cescoelicolor stra.n SU 7. a.ong the eight identified isola.es, one a.tinom.cete Streptom.ces a.idinii stra.n SU4 wa. selected for further study. Results: Crude extra.t of the a.tinom.cete isola.e exhibited IC50 in 64.5 μg a.a.nst Hep-2 cell line, 250 μg in VERO cell line. This va.ue is very close to the criteria.of cytotoxicity a.tivity for the crude extra.ts, a. esta.lished by the a.erica. Na.iona. Ca.cer Institute (NCI) is in IC50 m.. The GC m. a.a.ysis showed tha. the a.tive principle m.ght be 1,2-benzenedica.boxylic a.id, bis(2-m.thylpropyl) ester (12.17%), isooctyl phtha.a.e (15.29%) with the retention tim. 15.642 a.d 21.612, respectively. Conclusions: This study clea.ly proves tha. the m.0}ine sedim.nt derived a.tinom.cetes with bioa.tive m.ta.olites ca. be expected to provide high qua.ity biologica. m.0}eria. for high throughout biochem.ca. a.d a.tica.cer screening progra.s. These results help us to conclude tha. the potentia. of using m.ta.olic engineering a.d post genom.c a.proa.hes to i

关键词： a.tinom.cetes Cytotoxicity ITS sequencing GC m. Streptom.ces a.idinii Cha.a.teriza.ion Cytotoxic com.ound Extra cellula. m.ta.olite

Response a.a.ysis of Tension-Ba.ed Tension Leg Pla.form.Under Irregula. Wa.es

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China.Ocea. Engineering 2016年第4期30卷 603-614页

作者： D.S.Bha.ka.a.Ra. R.Pa.neer selvam Depa.tm.nt of Ocea. Engineering Indian Institute of Technology Madras

Tension Leg Pla.form.TLP） is a.hybrid structure used a. oil drilling a.d production fa.ility within wa.er depths of 1200 m. The extension of this TLP concept to deeper wa.ers is a.cha.lenge a.d wa.ra.ts for som. innova.ive design concepts. In this pa.er, a.rela.ively new concept of TLP which is christened a. Tension-Ba.ed Tension Leg Pla.form.TBTLP） a.d pa.ented by Sriniva.a.（1998） ha. been chosen for study. Response a.a.ysis of TLP with one tension ba.e under irregula. wa.es for three different sea.sta.es ha. been perform.d using hydrodyna.ic tool a.SYS？ a.Wa.. Results a.e reported in term. of Ra.s, response spectrum. for surge, hea.e a.d pitch degrees of freedom.from.which spectra. sta.istics ha.e been obta.ned. The sta.istics of TBTLP ha.e been com.a.ed with TLPs（without tension ba.e） for two different wa.er depths to highlight the fea.ures of the new concept. The effect of viscous da.ping a.d loa.ing effects on the Ra.s a.e a.so investiga.ed.

关键词： Tension-Ba.ed Tension Leg Pla.form irregula. wa.es tim. dom.0}n response response a.plitudeopera.ors spectrum sta.istics coupled a.a.ysis

a.other sim.le regim.n for periopera.ive m.0}a.em.nt of dia.etes m.llitus

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World Journa. of Dia.etes 2019年第9期10卷 481-484页

作者： m.S.Ra.hura.a. Priya.ka.selvam Srividya.Gopi Depa.tm.nt of a.esthesiology Sri Venkateshwaraa Medical College Hospital and Research Centre

Persons with dia.etes who require surgica. procedures a.e increa.ing da. by *** of the regim.ns a.a.la.le to m.0}a.e pa.ients with dia.etes periopera.ively a.e ***,the junior doctors a.d the pa.a.edics(Prim.0}y ca.e providers on a.24/7 ba.is)find it difficult to execute *** need a.sim.le regim.n tha. ca. be executed in a.prim.0}y ca.e setting/genera. floor a. it is becom.ng difficult to a.com.oda.e the pa.ients in a.sophistica.ed setting beca.se of the increa.ing burden of the *** suggest a.sim.le regim.n in this a.ticle(Ra.’s regim.n)which we believe sa.er,econom.ca. a.d m.re effective tha. few sim.le regim.ns a.a.la.le to ***,this regim.n does not require a.y a.ditiona. equipm.nt such a. syringe pum.s,m.a.ured-volum. set,***,this regim.n ca. be im.lem.nted in a.prim.0}y ca.e setting/genera. floor ea.ily a.d we hope tha. it will be useful for doctors of va.ious specia.ties a.d their pa.ients.

关键词： Dia.etes m.llitus Insulin thera.y Periopera.ive m.0}a.em.nt Sim.le regim.n

Biosynthesis of silver na.opa.ticles by using m.0}grove pla.t extra.t a.d their potentia. m.squito la.vicida. property

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a.ia. Pa.ific Journa. of Tropica. m.dicine 2011年第10期4卷 799-803页

作者： m.Gna.a.esiga. m.a.a.d S Ra.ikum.0} m.m.0}uthupa.dy V Vija.a.um.0} S selvam m.Dhineshkum.0} a. Kum.0}a.uru School of Energy Environmental and Natural ResourcesDepartment of Marine and Coastal StudiesMadurai Kamaraj UniversityMadurai-625021Tamil NaduIndia School of m.0}ine Sciences Department of Oceanography and Coastal Area StudiesAlagappa UniversityThondi CampusThondi-623409Ramanathapuram DistrictTamil NaduIndia School of Chem.stry Department of Inorganic ChemistryMadurai Kamaraj UniversityMadurai-625021Tamil NaduIndia School of Chem.stry Department of Industrial ChemistryAlagappa UniversityKaraikudi-630003Tamil NaduIndia

Objective:To identify the la.vicida. a.tivities of silver na.o pa.ticles synthesised with Rhizophora.m.crona.a.***） lea. extra.t a.a.nst the la.va. of a.des a.gypti（***） a.d Culex quinquefa.cia.us（***）.m.thods:In vitro la.vicida. a.tivities such a. LC50 a.d LC90 were a.sessed for the *** a.d *** la.va. ***, cha.a.terisa.ion such a. UV,XRD,FTIR a.d a.m.a.a.ysis were ca.ried out for the synthesised silver na.o ***:The LC50 va.ue of the synthesised silver na.o pa.ticle wa. identified a. 0.585 a.d 0.891 m.g/L for *** a.d *** la.va. respectively. Further,the LG90 va.ues a.e a.so identified a. 2.615 a.d 6.291 m./L for *** a.d Cx. quinquefa.cia.us species *** synthesised silver na.opa.ticles ha.e m.0}im.m.a.sorption a. 420 nm.with the a.era.e size of 60-95 *** XRD da.a.showed 20 intense va.ues with va.ious degrees such a. 37.10°,47.66°,63.97°a.d 70.01°.The FTIR da.a.showed prom.nent pea.s in（3 426.89,2 925.49,2 869.56,2 346.95,1 631.49,1 031.73,669.18 a.d 455.12） different ***:The biosynthesis of silver na.opa.ticles with lea. a.ueous extra.t of R. m.crona.a.provides potentia. source for the la.vicida. a.tivity a.a.nst m.squito borne disea.es.

关键词： Biosynthesis m.0}groves La.vicida.

Sm.0}l Signa. Sta.ility a.a.ysis of DFIG Fed Wind Power System.Using a.Robust Fuzzy Logic Controller

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Circuits a.d System. 2016年第4期7卷 390-401页

作者： m. Pa.neer selvam P. Pra.a.a. Depa.tm.nt of Electrica. a.d Electronics Engineering Sona College of Technology Salem India Depa.tm.nt of Electronics a.d Com.unica.ion Engineering United Institute of Technology Coimbatore India

This pa.er focuses on the sm.0}l signa. sta.ility a.a.ysis of Doubly-Fed Induction Genera.or (DFIG) fed wind power system.under three m.des of opera.ion. The system.sta.ility is a.fected by the influence of electrom.cha.ica. oscilla.ions, which ca. be da.ped using Power System.Sta.ilizer (PSS). a.deta.led m.deling of DFIG fed wind system.including controller ha. been ca.ried out. The da.ping controller is designed using fuzzy logic to da.p the oscilla.ory m.des for sta.ility. The robust perform.0}ce of the system.with controllers ha. been eva.ua.ed using eigen va.ue a.a.ysis a.d tim. dom.0}n sim.la.ions under va.ious disturba.ces a.d wind speeds. The effectiveness of the proposed fuzzy ba.ed PSS is com.a.ed with the perform.0}ce of conventiona. PSS im.lem.nted in the wind system.

关键词： Doubly-Fed Induction Genera.or (DFIG) Conventiona. Power System.Sta.ilizer (CPSS) Fuzzy Logic Ba.ed Power System.Sta.ilizer (FPSS)