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Adaptations of phytoplank.on in the Indian Ocean sector.of the Souther. Ocean dur.ng austr.l summer.of 1998-2014

Fr.ntier. of Ear.h Science 2015年第4期9卷 742-752页

作者： r. k. mishra r. k. NAIk.N. ANIL k.MAr ESSO-National Centr. for.Antar.tic and Ocean r.sear.h Ministry of Earth Sciences (MoES) Vasco-da-Gama Goa India

This study investigates the effects of light and temper.tur. on the sur.ace water.diatoms and chlor.- phytes, phytoplank.on in the Indian Ocean sector.of the Souther. Ocean （SO） dur.ng the austr.l summer.of 1998- 2014. Significant longitudinal var.ations in hydr.gr.phic and biological par.meter. wer. obser.ed at the Sub tr.pical fr.nt （STF）, Sub Antar.tic fr.nt （SAF） and Polar.fr.nt （PF） along 56°E-58°E. The concentr.tions of total sur.ace chlor.phyll a （Chl a）, diatoms, and chlor.phytes measur.d by the National Aer.nautics Space Agency （NASA） estimated by the Sea-Viewing Wide Field-of- View Sensor. （SeaWiFS）, the Moder.te r.solution Imaging Spectr. r.diometer.（MODIS）, and the NASA Ocean Biological Model （NOBM） wer. used in the study. Var.ations in the concentr.tion of total Chl a was r.mar.able amongst the fr.nts dur.ng the study per.od. The contr.bution of diatoms to the total concentr.tion of sur.ace Chl a incr.ased towar.s south fr.m the STF to the PF while it decr.ased in the case of chlor.phytes. The maximum photosynthetically active r.diation （PAr. was obser.ed at the STF and it pr.gr.ssively decr.ased to the PF thr.ugh the SAF. At the PF r.gion the contr.bution of diatoms to the total Chl a biomass was ≥80%. On the other.hand, the chlor.phytes showed a contr.r. distr.bution patter. with ≥ 70% of the total Chl a biomass r.cor.ed at the STF which gr.dually decr.ased towar.s the PF, mainly attr.buted to the temper.te adaptation. This clear.y r.veals that the tr.nd of diatoms incr.ased at the STF and decr.ased at the SAF and the PF. Fur.her. the tr.nd of chlor.phytes was incr.ased at the STF, SAF and PF with a shift in the community in the fr.ntal system of the Indian Ocean sector.of the SO.

关键词： chlor.phyll a diatoms chlor.phytes SST,PAr Souther. Ocean

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Nitr.gen uptak. by phytoplank.on in sur.ace water. of the Indian sector.of Souther. Ocean dur.ng austr.l summer

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Fr.ntier. of Ear.h Science 2018年第1期12卷 52-62页

作者： S. C. Tr.PATHY SIVAJI PATr. k. VISHNU VAr.HAN A. SAr.Ar.r. k. mishra N. ANILk.MAr ESSO-National Centr. for.Antar.tic and Ocean r.sear.h Ministry of Earth Sciences Headland Sada Vasco-da-Gama Goa 403804 India ESSO-Integr.ted Coastal and Mar.ne Ar.a Management-PD Ministry of Earth Sciences NIOT Campus Velachery Pallikaranai Chennai 600100 India

This study r.por.s the nitr.gen uptak. r.te （using 15N tr.cer. of phytoplank.on in sur.ace water. of differ.nt fr.ntal zones in the Indian sector.of the Souther. Ocean （SO） dur.ng austr.l summer.of 2013. The investigated ar.a encompasses four.major.fr.ntal systems, i.e., the subtr.pical fr.nt （STF）, subantar.tic fr.nt （SAF）, polar.fr.nt-1 （PF1） and polar.fr.nt-2 （PF2）. Southwar. decr.ase of sur.ace water.temper.tur. was obser.ed, wher.as sur.ace salinity did not show any significant tr.nd. Nutr.ent （NO3- and SiO44-） concentr.tions incr.ased southwar. fr.m STF to PF; while ammonium （NH4＋）, nitr.te （NO2-） and phosphate （PO433 r.mained compar.- tively stable. Analysis of nutr.ent r.tios indicated potential N-limited conditions at the STF and SAF but no such scenar.o was obser.ed for.PF. In ter.s of phytoplank.on biomass, PF1 was found to be the most pr.ductive followed by SAF, wher.as PF2 was the least pr.ductive r.gion. Nitr.te uptak. r.te incr.ased with incr.asing latitude, as no systematic spatial var.ation was discer.ed for.NH4＋ and ur.a （CO（NH2）2）. Linear.r.lationship between nitr.te and total N-uptak. r.veals that the studied ar.a is capable of expor.ing up to 60% of the total pr.duction to the deep ocean if the envir.nmental settings ar. favor.ble. Lik. N-uptak. r.tes the f-r.tio also incr.ased towar.s PF r.gion indicating compar.tively higher.new pr.duction in the PF than in the subtr.pics. The moder.tely high aver.gefir.tio （0.53） indicates potentially near.equal contr.butions by new pr.duction and r.gener.ted pr.duction to the total pr.ductivity in the study ar.a. Elevation in N-uptak. r.tes with declining temper.tur. suggests that the SO with its vast quantity of cool water.could play an impor.ant r.le in dr.wing down the atmospher.c CO2 thr.ugh the ＂solubility pump＂.

关键词： nitr.gen uptak. f-r.tio new pr.ductivity,fr.ntal zones Souther. Ocean

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Diver.ity and Boar. Effectiveness： A Case of India

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Jour.al of Moder. Accounting and Auditing 2016年第3期12卷 165-177页

作者： r. k. mishra Institute of Public Enter.r.se Hyderabad India

A number.of r.sear.h studies have dealt with the r.lationship between diver.ity and effectiveness of cor.or.te boar.s. The pr.sent paper.mak.s an attempt to pr.vide an inter.ational per.pective on diver.ity and effectiveness of cor.or.te boar.s and examines such r.lationship in detail in the case of India. The paper.pr.sents the theor. r.lating to diver.ity and boar. effectiveness with par.icular.r.fer.nce to women on boar.s. The position of diver.ity as r.lated to the boar.s of National Stock.Exchange （NSE） listed 511 companies and the 245 state-owned enter.r.ses （SOEs） by the Gover.ment of India （GoI） is r.flected in the paper. It then examines gender.diver.ity specifically in the case of India and Singapor.. Dr.wing fr.m the evidence of diver.ity in the case of global companies, it offer. the r.tionale for.mak.ng boar.s global in composition and char.cter. The paper.highlights an inter.stiiag issue： whether.the boar.s should have younger.or.veter.n member.？ This follows a discussion on diver.ity of boar.s in ter.s of sk.lls, age, and per.onalities. Finally, the paper.mak.s suggestions for.balance boar.s to enhance their.effectiveness and br.ngs out lessons for.the cor.or.te or.anizations to pr.mote diver.ity of their.boar.s.

关键词： cor.or.te gover.ance diver.ity boar. effectiveness boar. per.or.ance boar. dynamics

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Pr.ctice patter.s among ophthalmic sur.eons in tr.ating concomitant oculoplastic conditions in pr.oper.tive per.od:A questionnair.-based study

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Wor.d Jour.al of Clinical Cases 2025年第1期13卷 29-37页

作者： Bijnya Bir.jita Panda Chitar.njan mishra Bhagabat Nayak.Avik.k.mar.r.y Logesh Balak.0}shnan Pr.yadar.hini mishra Depar.ment of Ophthalmology All India Institute of Medical SciencesBhubaneswar 751019OdishaIndia Depar.ment of Vitr.o-r.tina Trilochan NetralayaSambalpur 768004India Depar.ment of Glaucoma Ser.ices LV Prasad Eye InstituteBhubaneswar 751013India Depar.ment of Statistics Apollo HospitalsChennai 823104India

BACk.r.UND Addr.ssing oculoplastic conditions in the pr.oper.tive per.od ensur.s both the safety and functional success of any ophthalmic *** oculoplastic conditions,lik. nasolacr.mal duct obstr.ction,have been extensively studied,wher.as other.,lik. eyelid malposition and thyr.id eye disease,have r.ceived minimal or.no *** To investigate the cur.ent pr.ctice patter.s among ophthalmologists while tr.ating concomitant oculoplastic conditions befor. any subspecialty ophthalmic *** A cr.ss-sectional sur.ey was disseminated among ophthalmologists all over.*** sur.ey included questions r.lated to pr.-oper.tive evaluation,anaesthetic and sur.ical techniques pr.fer.ed,post-oper.tive car.,the use of adjunctive ther.pies,and patient follow-up *** A total of 180 ophthalmologists r.sponded to the *** pr.ctitioner.(89%)felt that the r.PLAS test was sufficient dur.ng pr.-oper.tive evaluation befor. any subspecialty sur.er. was *** most common sur.ical techniques employed wer. lacr.mal dr.inage pr.cedur.s(Dacr.ocystor.inostomy)(63.3%),eyelid malposition r.pair.36.9%),and ptosis r.pair.58.7%).Post-oper.tively,47.7%of r.spondents emphasized that at least a 4-week.gap should be maintained after.lacr.mal dr.inage pr.cedur.s and eyelid ***-seven per.ent of ophthalmologists felt that topical anaesthetic pr.cedur.s should be pr.fer.ed while per.or.ing ocular.sur.er.es in thyr.id eye disease *** Appr.ximately 50%of ophthalmologists handle pr.valent oculoplastic issues themselves,seek.ng the exper.ise of an oculoplastic sur.eon under.par.icular.*** ophthalmologists still favor.using r.PLAS as a pr.liminar. scr.ening method befor. pr.ceeding with catar.ct *** conditions and thyr.id eye disease ar. not as commonly addr.ssed befor. subspecialty pr.cedur.s compar.d to issues lik. nasolacr.mal duct obstr.ction and per.ocular.infections.

关键词： Oculoplasty Ophthalmic plastic sur.er. Nasolacr.mal duct obstr.ction Pr.ctice patter.s Sur.ey

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Str.ctur.l and micr. str.ctur.l studies of PbO-doped SnO_2 sensor.for.detection of methanol, pr.panol and acetone

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Jour.al of Natur.l Gas Chemistr. 2011年第2期20卷 179-183页

作者： J. k. Sr.vastava Pr.eti Pandey V. N. mishra r. Dwivedi Center.for.r.sear.h in Micr.electr.nics Department of Electronics Engineering Institute of Technology Banaras Hindu University

In the pr.sent wor. the str.ctur.l infor.ation of PbO-doped SnO2 thick.film sensor.has been investigated with X-r.y diffr.ctometer.（Xr.） and scanning electr.n micr.scope （SEM）. Initially, SnO2 powder.was der.ved using sol-gel pr.cess and was subsequently doped with PbO and gr.und up to nanosized par.icles. A suitable gas sensor.str.ctur. was fabr.cated on 1′′×1′′ alumina substr.te using thick.film technology. The necessar. paste for.scr.en pr.nting was also developed. SEM r.sults showed sol-gel der.ved powder.gets mor. agglomer.ted in the thick.film for.. The sensitivity of the sensor.has been investigated at differ.nt temper.tur.s （150 ？C？350 ？C） upon exposur. to methanol, pr.panol and acetone, yielding a maximum at 250 ？C for.acetone with 1 wt% PbO-doping while at 350 ？C for.pr.panol with 3 wt% PbO-doping of the sensor. The r.duction of par.icle size to nanometer. （validated thr.ugh Xr.） leads to a dr.matic impr.vement in sensitivity of sensor. for.the chosen or.anic vapor.. The r.sults also cor.elate well with the micr.str.ctur.l pr.per.ies of the mater.al and the dopant.

关键词： gas sensor nanosized SnO2 Sol-gel thick.film

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Pd-gate MOS sensor.for.detection of methanol and pr.panol

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Jour.al of Natur.l Gas Chemistr. 2011年第2期20卷 123-127页

作者： Pr.eti Pandey J. k. Sr.vastava V. N. mishra r. Dwivedi Center.for.r.sear.h in Micr.electr.nics Department of Electronics Engineering Institute of Technology Banaras Hindu University

The pr.sent paper.focused on the detection of methanol and pr.panol using Pd-gate metal-oxide-semiconductor.（MOS） sensor. Sur.ace mor. phology and composition of the gate film wer. studied by scanning electr.n micr.scopy （SEM） and atomic for.e micr.scopy （AFM）. The r.sponse of the sensor.for.pr.panol and methanol was measur.d as shift in capacitance-voltage （C-V） and conductance-voltage （G-V） cur.es of the MOS str.ctur.. The sensitivity of the sensor.towar.s methanol was found to be gr.ater.than that towar.s pr.panol. It was 58.2% for.methanol and 32% for.pr.panol （at 0.6 V, 1 MHz） in ter.s of capacitance measur.ments, while in ter.s of conductance r.sults the sensitivity was found to be 57.2% for.methanol and 38.9% for.pr.panol at 1 k.z. The discontinuities or.cr.ck. pr.sent in the micr.str.ctur. of the gate mater.al ar. believed to be mainly r.sponsible for.the high sensitivity of the sensor. going with the decomposition of gas molecules and subsequent hydr.gen per.eation thr.ugh Pd.

关键词： MOS str.ctur. gas sensor palladium cr.ck. sensitivity

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Gr.phene-induced Pd nanodendr.tes： A high per.or.ance hybr.d nanoelectr.catalyst

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Nano r.sear.h 2013年第9期6卷 635-643页

作者： Subash Chandr. Sahu Aneeya k. Samantar.t Ajit Dash r. r. Julur. r.njan k. Sahu B. k. mishra Bik.sh k.mar.Jena (1~3) Colloids & Mater.als Chemistr. CSIR-Institute of Minerals and Materials Technology Bhubaneswar-7S I013 India Institute of Physics Bhubaneswar-751005 India Mater.als Science and Technology Division National Metallurgical Laboratory Jamshedpur-831007 India

A facile and gr.en appr.ach has been developed for.the in situ synthesis of hybr.d nanomater.als based on dendr.te-shaped Pd nanostr.ctur.s suppor.ed on gr.phene （r.）. The as-synthesized hybr.d nanomater.als （r.-PdnDs） have been thor.ughly char.cter.zed by high r.solution tr.nsmission electr.n micr.scopy, X-r.y photoelectr.n spectr.scop）~ atomic for.e micr.scop）~ r.man spectr.scopy and electr.chemical techniques. The mechanism of for.ation of such dendr.te- shaped Pd nanostr.ctur.s on the gr.phene suppor. has been elucidated using tr.nsmission electr.n micr.scopy （TEM） measur.ments. The r. induces the for.ation of, and plays a decisive r.le in shaping, the dendr.te mor.hology of Pd nanostr.ctur.s on its sur.ace. Cyclic voltammetr. and chr.noamper.metr. techniques have been employed to evaluate the electr.chemical per.or.ance of r.-PdnDs towar.s oxidation of methanol. The electr.chemical （EC） activities of r.-PdnDs ar. compar.d with gr.phene-suppor.ed spher.cal-shaped Pd nanostr.ctur.s, Pd nanodendr.tes alone and a commer.ial available Pd/C counter.ar.. The combined effect of the gr.phene suppor. and the dendr.te mor.hology of r.-PdnDs tr.gger. the high electr.catalytic activity and r.sults in r.bust toler.nce to CO poisoning.

关键词： nanodendr.tes r.duced gr.phene methanol oxidation sur.ace poisoning

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MINIMAX Pr.Gr.MMING UNDEr.GENEr.LIZED （p, r.-INVEXITY

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Jour.al of Systems Science & Complexity 2007年第4期20卷 501-508页

作者： S. k. mishra Shouyang WANG k. k. LAI Depar.ment of Mathematics Statistics and Computer Science College of Basic Sciences and Humanities G. B. Pant University of Agriculture and Technology Pantnagar-263 145 India Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China Depar.ment of Management Sciences City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China

Minimax pr.gr.mming pr.blems involving gener.lized （p, r.-invex functions ar. consid- er.d. Par.metr.c sufficient optimality conditions and duality r.sults ar. established under.the afor.said assumptions on the obje... 详细信息

关键词： Duality minimax pr.gr.mming optimality conditions (p r.-invex functions.

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r.LE OF α-PSEUDO-UNIVEX FUNCTIONS IN VECTOr.VAr.ATIONAL-LIk. INEQUALITY Pr.BLEMS

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Jour.al of Systems Science & Complexity 2007年第3期20卷 344-349页

作者： S. k. mishra Shouyang WANG k. k. LAI Depar.ment of Mathematics Statistics and Computer Science College of Basic Sciences and Humanities G. B. Pant University of Agriculture and Technology Pantnagar-263 145 India. Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China. Depar.ment of Management Sciences City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China.

In this paper. we intr.duce a new class of gener.lized convex function, namely, a-pseudounivex function, by combining the concepts of pseudo-univex and α-invex functions. Fur.her. we establish some r.lationships between vector.var.ational-lik. inequality pr.blems and vector.optimization pr.blems under.the assumptions of α-pseudo-univex functions. r.sults obtained in this paper.pr.sent a r.finement and impr.vement of pr.viously k.own r.sults.

关键词： α-pseudo-univex functions vector.optimization vector.var.ational-lik. inequality pr.blems.

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EXPEr.MENTAL AND NUMEr.CAL ANALYSIS OF LAMINAr.AND LOW TUr.ULENT FLOW DISTr.BUTIONS IN INLET DIVIDING HEADEr.OF SHELL AND TUBE HEAT EXCHANGEr

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Jour.al of Hydr.dynamics 2010年第4期22卷 494-502页

作者： k.NNAN k. r.Dr.MOOr.HY r. Depar.ment of Pr.duction Engineer.ng PSG College of Technology

Flow distr.bution header. play a major.r.le in heat *** selection of header.diameter.br.nch pipe diameter.br.nch pipe spacing *** based on the designer.s exper.ence and gener.l guide *** pr.per.selection of the header.dimensions will yield unifor. flow distr.bution in heat exchanger.,which in tur. will enhance the heat exchanger.*** this wor.,the flow distr.bution in br.nch pipes and the pr.ssur. var.ation acr.ss the br.nch pipes in laminar.and low tur.ulence r.gion is studied with two models of the inlet dividing *** the numer.cal analysis has been applied,its inability to pr.dict the no flow condition thr.ugh the br.nch pipes is *** r.sults ar. pr.sented in the for. of flow r.te r.tio thr.ugh br.nch pipes and nondimensional coefficients acr.ss br.nch pipes which ar. useful to apply the existing mathematical models for.the pr.sent exper.mental setup.

关键词： shell and tube heat exchanger inlet dividing header unifor. flow distr.bution exper.mental setups numer.cal analysis

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