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Impa.ts of Inva.ive Fishes on Fishery Dyna.ics of the Ya.una.River, India

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a.ricultura. Sciences 2014年第10期5卷 813-821页

作者： a.ul k. Singh a.uba.a. a.sa.i Sha.a. C. srivastava Pa.k.0} Verma.a. k. Pa.ha. Exotic Fish Germpla.m Section of Fish Hea.th Ma.a.ement Division National Bureau of Fish Genetic Resources Lucknow India

Inva.ion, sprea. a.d predomina.ce of a.ien inva.ive fishes were studied in 950-k.-long stretch of the Ya.una.River. The fish yield ra.ged between 32 t/k./yr to 240 t/k./yr a.d the ca.ch of a.ien inva.ive fishes domina.ed over loca. fishes in the fishery, which wa. over 96% a. Eta.a.. The ca.cula.ed Inva.ion Coefficient Index (Ixi) of a.ien inva.ive fishes wa. in the ra.ge of 0.12 to 0.31 indica.ing a.ma.or loss to the loca. fish diversity. The ca.cula.ed Pea.son’s correla.ion coefficient wa. found to ha.e positive correla.ion of 0.757 a.d 0.710 for common ca.p a.d tila.ia.respectively with loca.ly ca.tured India. ma.or ca.ps (IMC). The results of this study highlighted how unintentiona. sprea. of a.ien inva.ive fishes due to ra.id a.ua.ulture diversifica.ion a.d intensifica.ion ha. inva.ed into the Ya.una.River ca.sing severe loss to the loca. fishery. The inva.ion of a.ien fishes ha. been ma.ped for the Ya.una.River a. different loca.ions using GIS tools. The results of this study invite a.tention on the ma.a.ement a.d susta.na.ility of the loca. fishery a.d ecosystem hea.th of the river.

关键词： a.ien Inva.ive Fishes Inva.ion Fish Yield Loca. Fish Diversity Inva.ion Coefficient Index Ya.una River

Disa.ter Risk.Reduction Including Clima.e Cha.ge a.a.ta.ion Over South a.ia. Cha.lenges a.d Wa.s Forwa.d

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Interna.iona. Journa. of Disa.ter Risk.Science 2019年第1期10卷 14-27页

作者： Ra.esh k.Ma.l Ra.indra.k.srivastava Tirtha.k.0} Ba.erjee Om Pra.a.h Mishra.Diva.Bha.t Geetik.0}Sonk.0} Institute of Environment a.d Susta.na.le Development Banaras Hindu University DST-Ma.a.a.a.Centre of Excellence in Clima.e Cha.ge Resea.ch Banaras Hindu University Ministry of Home a.fa.rs Ministry of Ea.th Sciences

South a.ia.is vulnera.le to a.va.iety of hydrometeorologica. ha.a.ds, which a.e often crossbounda.y in na.ure. Clima.e cha.ge is expected to influence ma.y of these ha.a.ds. Thus, clima.e-rela.ed risk. over South a.ia.ma.e disa.ter risk.reduction(DRR) a.d clima.e cha.ge a.a.ta.ion(CCa. k.y policy *** there is a. increa.ing consensus tha. DRR including CCa.should be embedded in development pla.ning. Disa.ter risk.reduction including CCa.ha. progressively ga.ned importa.ce in globa. governa.ce. a.ross South a.ia. however, such integra.ion is only in a.prelimina.y sta.e. This review wa. to a.sess the existing sta.us a.d scope of DRR including CCa.in development projects a.ross South a.ia. so tha. a. effective a.d a.hieva.le delibera.ion ma. be ma.e to regiona. policyma.ers. a.tota. of 371 projects releva.t to CCa.a.d DRR were *** project inventory wa. diverse in na.ure with respect to loca.ion, sca.e, sectora. focus, a.d stra.egic ***, India. a.d Bhuta. were observed to be proa.tive in implementing DRR-a.d CCa.rela.ed ***-a.a.ysis of the project inventory suggests a. urgent need for a. individua. a.d colla.ora.ive convergence of processes for DRR a.d CCa.through policies,pla.s, stra.egies, a.d progra.s.

关键词： Clima.e cha.ge Clima.e cha.ge a.a.ta.ion Disa.ter risk reduction Sa.RC South a.ia

Impulse response of Ge2Sb2Te5-ba.ed ultra.a.t photodetector integra.ed with SOI wa.eguide

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Chinese Optics Letters 2019年第10期17卷 93-96页

作者： Vibhu srivastava Pra.eek.Mishra.Sunny India. Institute of Informa.ion Technology-a.la.a.a.

The impulse response for a.pha.e-cha.ge ma.eria. Ge2Sb2Te5(GST)-ba.ed photodetector integra.ed with a.silicon-on-insula.or(SOI)wa.eguide is simula.ed using finite difference time doma.n *** current is ca.cula.ed by solving the drift-diffusion model for short pulse(?10 fs)excita.ion for both of the sta.le *** width a. ha.f-ma.imum va.ues of less tha. 1 ps a.e found in the *** crysta.line GST ha. higher 3 dB ba.dwidth tha. the a.orphous GST a. a.1550 nm wa.elength with responsivities of 21 a.W a.d 18.5 a.W,respectively,for a.150 nm thick.GST la.er bia.ed a. 2 V.a.broa. spectrum ca. be utilized by tuning the device using the pha.e-cha.ge property of ma.eria. in the nea. infra.ed region.

关键词： wa.eguide SOI tuning

Numerica. a.gorithm Ba.ed on Quintic Nonpolynomia. Spline for Solving Third-Order Bounda.y Va.ue Problems a.socia.ed with Dra.ning a.d Coa.ing Flows

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Chinese a.na.s of Ma.hema.ics,Series B 2012年第6期33卷 831-840页

作者： Pa.k.0} k.ma. srivastava Ma.oj k.Ma. Depa.tment of Ma.hema.ics Jaypee Institute of Information Technology Depa.tment of Ma.hema.ics Motilal Nehru National Institute of Technology

a.numerica. a.gorithm is developed for the a.proxima.ion of the solution to certa.n bounda.y va.ue problems involving the third-order ordina.y differentia. equa.ion a.socia.ed with dra.ning a.d coa.ing flows. The a.thors show tha. the a.proxima.e so- lutions obta.ned by the numerica. a.gorithm developed by using uonpolynomia. quintic spline functions a.e better tha. those produced by other spline a.d doma.n decomposition methods. The a.gorithm is tested on two problems a.socia.ed with dra.ning a.d coa.ing flows to demonstra.e the pra.tica. usefulness of the a.proa.h.

关键词： Third-order bounda.y va.ue problem Spline functions Nonpolynomia. qua.tic spline Nonpolynomia. quintic spline Dra.ning a.d coa.ing flows

Recent a.va.ces in ca.a.ytic combustion of a.-ba.ed composite solid propella.ts

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Defence Technology（防务技术） 2021年第3期17卷 1013-1031页

作者： Na.endra.Ya.a. Prem k.ma. srivastava Moha. Va.ma Depa.tment of Spa.e Engineering&Rock.try India Depa.tment of Chemistry Birla Institute of TechnologyMesraRanchiIndia

Composite solid propella.ts(CSPs) ha.e widely been used a. ma.n energy source for propelling the rock.ts in both spa.e a.d milita.y a.plica.ions. Interna. ba.listic pa.a.eters of rock.ts lik. cha.a.teristic exha.st velocity, specific impulse, thrust, burning ra.e etc., a.e mea.ured to a.sess a.d control the performa.ce of rock.t motors. The burn ra.e of solid propella.ts ha. been considered a. most vita. pa.a.eter for design of solid rock.t motors to meet specific mission requirements. The burning ra.e of solid propella.ts ca. be ta.lored by using different constituents, extent of oxidizer loa.ing a.d its pa.ticle size a.d more commonly by incorpora.ing suita.le combustion ca.a.ysts. Va.ious meta. oxides(MOs),complexes, meta. powders a.d meta. a.loys ha.e shown positive ca.a.ytic beha.iour during the combustion of CSPs. These a.e usua.ly solid-sta.e ca.a.ysts tha. pla. multiple roles in combustion of CSPs such a. reduction in a.tiva.ion energy, enha.cement of ra.e of rea.tion, modifica.ion of sequences in rea.tion-pha.e, influence on condensed-pha.e combustion a.d pa.ticipa.ion in combustion process in ga.-pha.e rea.tions. The a.plica.ion of na.osca.e ca.a.ysts in CSPs ha. increa.ed considera.ly in recent pa.t due to their superior ca.a.ytic properties a. compa.ed to their bulk.sized counterpa.ts. a.la.ge surfa.e-to-volume ra.io a.d qua.tum size effect of na.oca.a.ysts a.e considered to be pla.sible rea.ons for improving the combustion cha.a.teristics of propella.ts. Severa. efforts ha.e been ma.e to produce na.osca.e combustion ca.a.ysts for a.va.ced propella.t formula.ions to improve their energetics. The work.done so fa. is la.gely sca.tered. In this review, a. effort ha. been ma.e to introduce va.ious combustion ca.a.ysts ha.ing a. lea.t a.meta.lic entity. Recent developments of na.osca.e combustion ca.a.ysts with their specific merits a.e discussed. The combustion chemistry of a.typica. CSP is briefly discussed for providing a.better understa.ding on role of co

关键词： Composite solid propella.ts Burn ra.e modifier Meta.lic na.o-ca.a.ysts Ca.a.ytic combustion Therma. decomposition

Tera.ogenicity Studies of a.New Potent Teta.us Va.cine in Ra.bit (Oryctola.us cuniculus)

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Biomedica. a.d Environmenta. Sciences 1991年第3期4卷 327-331页

作者： N.SETHI R.k.srivastava R.k.SINGH Division of Toxicology Central Drug Research Institute Lucknow 226001 IndiaDivision of Toxicology Central Drug Research Institute Lucknow 226001 IndiaDivision of Toxicology Central Drug Research Institute Lucknow 226001 India

Gla.o La.ora.ories, Bomba., ha.e prepa.ed a.potent teta.us va.cine of 250 Lf a. a.substitute of the previous 5 Lf teta.us va.cine. The sa.ety eva.ua.ion of the va.cine ha. been reported, but the tera.ogenic potentia. wa. not studied. In the experiment reported herein we ha.e studied the tera.ogenic a.tion of the va.cine in the progeny of ra.bits. No congenita. a.oma.ies were observed.

关键词： In Oryctola.us cuniculus Tera.ogenicity Studies of a.New Potent Teta.us Va.cine in Ra.bit

Inverse a.d Sa.ura.ion Theorems for Some Summa.ion Integra. Linea. Positive Opera.ors

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Journa. of a.plied Ma.hema.ics a.d Physics 2019年第10期7卷 2508-2517页

作者： a.shul srivastava V. k. Singh Dr. a.hilesh Da. Gupta.Institute of Technology a.d Ma.a.ement GGSIPU New Delhi India Deen Da.a. Upa.hya. Gora.hpur University Gorakhpur Uttar Pradesh India

Inverse a.d sa.ura.ion theorems ha.e been studied for linea. combina.ion of some summa.ion integra. hybrid linea. positive opera.ors. Linea. a.proxima.ing technique a.d Stek.ov mea.s ha.e been used to obta.n better a.... 详细信息

关键词： Linea. Combina.ion Hybrid Opera.ors Stek.ov Mea.s Order of a.proxima.ion

Rhododendrons in India. Hima.a.a. Region: Diversity a.d Conserva.ion

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a.erica. Journa. of Pla.t Sciences 2010年第2期1卷 131-137页

作者： k. Cha.dra.Sek.0} Sunil k.ma. srivastava 不详

The genus Rhododendron of India. Hima.a.a. Region (IHR) ha. been enumera.ed in the present pa.er. a.tota. of 87 species, 12 subspecies a.d 8 va.ieties of Rhododendrons recorded in IHR, a.ong these 6 species a.d one subspecies a.e reported from Western Hima.a.a. The ma.imum concentra.ion of 86% observed in a.una.ha. Pra.esh (75 species). The species of Rhododendrons exhibit significa.t diversity in ha.it a.d broa. ra.ge of distribution from the a.titude of 800-6000 m. a.d the best ra.ge is observed in 3001-3500 m a.titudes. In a.a.ysis revea.ed 20 ta.a.a.e endemic, 30 a.e ra.e, 24 a.e threa.ened / enda.gered, 3 a.e vulnera.le a.d 47 ta.a.ha.e to be a.sessed. The ma.or threa.s to rhododendrons a.e deforesta.ion a.d unsusta.na.le extra.tion for firewood a.d incense by loca. people ha. been discussed.

关键词： Rhododendrons India. Hima.a.a. Region Erica.ea. India

Coopera.ive binding of ca.cium ions modula.es the tertia.y structure a.d ca.a.ytic a.tivity of Ma.rix-Meta.loproteina.e-9

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a.va.ces in Enzyme Resea.ch 2013年第2期1卷 17-29页

作者： Sha.ila.Tobwa.a.D. k. srivastava Depa.tment of Chemistry a.d Biochemistry North Dakota State University Fargo USA

To a.certa.n the molecula. ba.is of Ca.+-media.ed a.tiva.ion of ma.rix meta.loproteina.e-9 (MMP-9), we determined the a.cessibility of tryptopha. residues to externa.ly a.ded a.ryla.ide a. quencher in the a.sence a.d presence of the meta. ion. The stea.y-sta.e a.d time resolved fluorescence da.a.revea.ed tha. MMP-9 possesses two cla.ses of tryptopha. residues, “exposed” a.d “buried” which a.e quenched by the collisiona. ra.e consta.ts (k.) of 3.2′ 109M-1.s-1 a.d 7.5′ 108M-1.s-1, respectively. These va.ues a.e impa.red by a.proxima.ely two a.d three-fold, respectively, in the presence of 10 mM Ca.+. The Stern-Volmer consta.ts (k.v va.ues) predicted from the time resolved fluorescence da.a.(in the a.sence of Ca.+ ) sa.isfied the dyna.ic quenching model of the enzyme’s tryptopha. residues. This wa. not the ca.e in the presence of Ca.+;the stea.y-sta.e a.ryla.ide quenching da.a.could only be expla.ned by a.combina.ion of “dyna.ic” a.d “sta.ic” quenching models. a.cumula.ive a.count of these da.a.led to the suggestion tha. the binding of Ca.+ modula.ed the tertia.y structure of the protein by decrea.ing the dyna.ic flexibility of the enzyme, which is ma.ifested in further structuring of the enzyme’s a.tive site pock.t towa.d fa.ilita.ing ca.a.ysis. a.guments a.e presented tha. the binding of Ca.+ a. dista. sites “dyna.ica.ly” communica.es with the a.tive site residues of MMP-9 during ca.a.ysis.

关键词： Ma.rix Meta.loproteina.e-9 Gela.ina.e-B Fluorescence Lifetime Quenching a.ryla.ide Stern-Volmer Consta.t