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Time-r.solved CCD photometr. and time-ser.es analysis of the r. Lyr.e type star.r. Gem

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r.sear.h in Astr.nomy and Astr.physics 2019年第9期19卷 29-36页

作者： Vir.bhadr.sinh A.Gohil Sachchidan prakash Bhatnagar Depar.ment of Physics M.K.Bhavnagar UniversityBhavnagar-364002GujaratIndia

We pr.sent the r.sults of a time-r.solved photometr.c and time-ser.es analysis of an r. Lyr.e type star.r. Gem. The main r.sults ar. as follows: we found r. Gem’s pulsation per.od, 0.39689 d, and its V and I mean magnitudes, 11.277(V) and 11.063(I) mag r.spectively. We confir. its var.ability type as r.ab/BL because it manifests the Blazhko effect, and it also exhibits asymmetr.c light cur.es(steep ascending br.nches), per.ods fr.m 0.3 to 1.0 d and amplitudes fr.m 0.3 to 2 mag in V. They ar. fundamental mode pulsator..

关键词： star.:individual:r. Gem star.:var.ables:r. Lyr star.:oscillations star.:var.ables:r.AB/BL star.:var.ables:Blazhko effect techniques:photometr.c

Classification of Glaucoma in r.tinal Images Using EfficientnetB4 Deep Lear.ing Model

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Computer.Systems Science & Engineer.ng 2022年第12期43卷 1041-1055页

作者： A.Geetha N.B.prakash National Engineer.ng College Kovilpatti628502India

Today, many eye diseases jeopar.ize our.ever.day lives, such as Diabetic r.tinopathy (Dr., Age-r.lated Macular.Degener.tion (AMD), and *** is an incur.ble and unavoidable eye disease that damages the vision ofoptic ner.es and quality of life. Classification of Glaucoma has been an active fieldof r.sear.h for.the past ten year.. Sever.l appr.aches for.Glaucoma classification ar.established, beginning with conventional segmentation methods and featur.-extr.ction to deep-lear.ing techniques such as Convolution Neur.l Networ.s (CNN). Incontr.st, CNN classifies the input images dir.ctly using tuned par.meter. of convolution and pooling layer. by extr.cting featur.s. But, the volume of tr.ining datasetsdeter.ines the per.or.ance of the CNN;the model tr.ined with small datasets,over.it issues ar.se. CNN has ther.for. developed with tr.nsfer.lear.ing. The pr.mar. aim of this study is to explor. the potential of EfficientNet with tr.nsfer.lear.ing for.the classification of Glaucoma. The per.or.ance of the cur.ent wor.compar.s with other.models, namely VGG16, InceptionV3, and Xception usingpublic datasets such as r.M-ONEV2 & V3, Or.GA, Dr.SHTI-GS1, Hr., andACr.MA. The dataset has split into tr.ining, validation, and testing with the r.tioof 70:15:15. The assessment of the test dataset shows that the pr.-tr.ined EfficientNetB4 has achieved the highest per.or.ance value compar.d to other.models listedabove. The pr.posed method achieved 99.38% accur.cy and also better.r.sults for.ther.metr.cs, such as sensitivity, specificity, pr.cision, F1_scor., Kappa scor., andAr.a Under.Cur.e (AUC) compar.d to other.models.

关键词： Convolution neur.l networ. deep lear.ing fundus image glaucoma image classification

Lethal effect of Str.ptomyces citr.ofluor.scens against lar.ae of malar.a,filar.a and dengue vector.

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Asian Pacific Jour.al of Tr.pical Medicine 2012年第8期5卷 594-597页

作者： Gavendr. Singh Soam prakash Envir.nmental and Advanced Par.sitology and Vector.Contr.l Biotechnology Labor.tor.es Department of ZoologyDayalbagh Educational InstituteDayalbaghAgra-282 005India

Objective:To investigate lethal effect of cultur. filtr.tes of Str.ptomyces citr.ofluor.scens （***） against Anopheles stephensi（***）,Culex quinquefasciatus（Cx. quinquefasciatus）,and Aedes aegypti（***） lar.ae vector. for.malar.a,filar.al and dengue. Methods:The cultur. filtr.tes obtained fr.m *** 2528 was gr.wn in Potato Dextr.se Br.th（PDB）,filtr.ted and used for.the bioassay after.a gr.wth of 15 ***:The r.sults demonstr.ted that the *** shows mor.alities with LC50,LG40 values of fir.t instar.46.8μL/mL,79.5μL/mL,second instar.79.0μL/mL,95.6μL/mL,thir. instar.79.0μL/mL,136.9μL/mL,and four.h instar.122.6μL/mL,174.5μL/mL Wher.as,The *** wer. found effective on fir.t instar.40.0μL/mL,138.03μL/mL,second instar.80.0μL/ml,181.97μL/ mL,thir. instar.100.0μL/mL,309.2μL/mL,and four.h instar.60.0μL/ml,169.82μL/*** *** wer. successfully achieved susceptible with higher.concentr.tions in compar.sons of *** and *** *** outcomes of the investigations have compar.d with the Chitinase of Str.ptomyces gr.seus（***） C6137 that shows 90%-95% ***:These new findings significantly per.itted that the cultur. filtr.tes of S. citr.ofluor.scens can be used as bacter.al *** is an envir.nmentally safe appr.ach to contr.l the vector. of malar.a,dengue and filar.asis of tr.pical ar.as.

关键词： Anopheles stephensi Culex quinquefasciatus Aedes aegypti Soil bacter.a Mosquito lar.icides

Assessing anthr.pogenic pr.ssur. and thr.ats on Paeonia emodi *** r.yle habitats in Gar.wal Himalaya

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Jour.al of Mountain Science 2023年第3期20卷 810-820页

作者： Pr.veen JOSHI Pr.m prakash Vijay Kant PUr.HIT Depar.ment of Botany Govt.M.B.P.G.CollegeHaldwani 263641Indial High Altitude Plant Physiology r.sear.h Centr. H.N.B.Garhwal Central UniversitySrinagar Garhwal 263671India

The Gar.wal Himalaya is among the major.r.positor.es of immensely valuable wild edible plants and pr.vides food secur.ty to the local *** the valuable plant species that gr.w in this r.gion,Paeonia emodi(family Paeoniaceae)is an impor.ant wild edible species that found in temper.te r.gions with an altitude r.nge between 1800 and 2800 *** species is facing a sever. thr.at to its sustainability due to over.ar.esting,habitat distur.ances,and a lack of effor. r.gar.ing *** the fir.t time,this study investigated anthr.pogenic pr.ssur.,population decline per.eptions in the natur.l habitat,and vulner.bility assessment of *** under.selected study sites(n=23 villages).A semi str.ctur.d questionnair. was used to inter.iew appr.ximately 45%of the local inhabitants,including her.al pr.ctitioner.(Vaidhyas or.Dais)of each *** the basis of demogr.phic char.cter.stics,the per.eptions and r.sponses of 464 local people wer. documented r.gar.ing potential causes of deter.or.tion and feasible options for.sustainable *** the weight sur.ey method,we estimated the actual amount of collection based on per.onal inter.ction and dir.ct *** or.er.to deter.ine the thr.ats status,a r.pid vulner.bility assessment(r.A)was per.or.ed and wer. used based on the cur.ent exploitation and *** pr.sent study r.vealed that leaf(100%)was the most fr.quently har.ested par.,followed by stem(95.65%),seed(26.09%),r.ot(21.74%)and flower.13.04%).The village Tr.yuginar.yan and Pothivasa r.cor.ed the highest collection scor.s while the pur.ose of the collection was mostly edible(100%),medicinal(100%),and least commer.ial(8.70%).Accor.ing to the liter.tur. r.view and the pr.sent sur.ey,the r.A(total=21)is categor.zed as categor. II(inter.ediate side of the r.A index),indicating a degr.e of *** study r.vealed that *** faces extinction in the Gar.wal *** this species thr.ugh agr.-pr.duction techniques may alleviate th

关键词： Anthr.pogenic pr.ssur. Conser.ational str.tegies Gar.wal Himalaya Paeonia emodi r.pid vulner.bility assessment Wild edibles

Tr.nsitional metal ions induced damage to biomolecules:r.le of fer.yl and per.er.yl r.dicals

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Asian Pacific Jour.al of Tr.pical Medicine 2010年第1期3卷 32-35页

作者： Mungli prakash Shar.ila Upadhya Depar.ment of Biochemistr. Kasturba Medical College

Objective:To investigate the effect of oxidized tr.nsitional metal（fer.ic and cupr.c） ions on the amino ***:25 mmol/L hydr.xypr.line and 25 mmol/L histidine wer. incubated with 50μL Fe3+ and Cu2+ ions at pH 7.4 and 37℃for.30 mins in separ.te test *** 500μL of 1% thiobar.itur.cacid（TBA） was added to the incubated amino acids followed by addition of 500μL of glacial acetic *** r.sultant mixtur. was vor.exed and heated at 100℃for.30 *** r.adings wer. noted after.cooling to r.om *** exper.ment was r.peated in the pr.sence of var.ous r.agents,like hydr.xyl r.dical scavenger.,antioxidant enzymes,and r.ducing agents and metal ion ***:The pink chr.mogen for.ed with the absor.ance maxima at 524 nm,AND shifted to 560 nm in alkaline *** absor.ance was expr.ssed as TBAadduct in MDA *** TBA-adduct decr.ased in the pr.sence of r.ducing agents and metal ion *** enzymes and hydr.xyl r.dical scavenger. did not show any effect. Conclusion:Tr.nsitional metal ions in their.oxidized state showed significant damage to amino acids,hydr.xypr.line and *** r.sults indicate the possible r.le played by high-valent oxo-ir.n species,fer.yl and per.er.y r.dicals in damaging biomolecules.

关键词： Tr.nsitional metals Oxidative damage Fer.yl/per.er.yl r.dicals Malondialdehyde Biomolecules Thiobar.itur.c acid r.active substances

Benevolent behavior.of Kleinia gr.ndiflor. leaf extr.ct as a gr.en cor.osion inhibitor.for.mild steel in sulfur.c acid solution

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Inter.ational Jour.al of Miner.ls,Metallur.y and Mater.als 2014年第11期21卷 1083-1095页

作者： Muthukr.shnan Pitchaipillai Kar.hik r.j Jeyapr.bha Balasubr.manian prakash Per.akar.ppan Depar.ment of Chemistr. Faculty of Engineering Karpagam UniversityCoimbatore-641021 Tamil Nadu India Depar.ment of Chemistr. Thiagarajar CollegeMadurai-625009 Tamil Nadu India Depar.ment of Civil Engineer.ng Fatima Michael College of Engineering & TechnologyMadurai-625020 Tamil Nadu India

The ethanolic extr.ct of Kleinia gr.ndiflor. leaves was char.cter.zed and tested for.its potential anticor.osion pr.per.ies on mild steel in 1 M H2SO4 medium using mass-loss analysis, potentiodynamic polar.zation measur.ments, electr.chemical impedance spectr.scopy, Four.er.tr.nsfor. infr.r.d spectr.scopy, scanning electr.n micr.scopy, UV–visible spectr.scopy, and X-r.y diffr.ction analysis. The effect of temper.tur. on the cor.osion behavior.of mild steel was studied in the r.nge of 308 to 328 K. The inhibition efficiency was obser.ed to incr.ase with incr.asing concentr.tion of the extr.ct. Polar.zation cur.es r.vealed that the Kleinia gr.ndiflor. leaf extr.ct is a mixed inhibitor. Impedance diagr.ms r.vealed that an incr.ase of Kleinia gr.ndiflor. leaf extr.ct concentr.tion incr.ased the char.e tr.nsfer.r.sistance and decr.ased the double-layer.capacitance. The adsor.tion pr.cess obeys Langmuir.s model, with a standar. fr.e ener.y of adsor.tion（ΔGads） of-18.62 k J/mol. The obtained r.sults indicate that the Kleinia gr.ndiflor. leaf extr.ct can ser.e as an effective inhibitor.for.the cor.osion of mild steel in a sulfur.c acid medium.

关键词： steel cor.osion mild steel sulfur.c acid cor.osion inhibitor.

Influence of lubr.cation,tool steel composition,and topogr.phy on the high temper.tur. tr.bological behaviour.of aluminium

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Fr.ction 2021年第1期9卷 155-168页

作者： Justine DECr.ZANT-Tr.QUENAUX Leonar.o PELCASTr. Br.ham prakash Jens HAr.ELL Machine Elements Lulea University of TechnologyLulea SE-97187Sweden Depar.ment of Mechanical Engineer.ng Tsinghua UniversityBeijing 100084China

The use of high str.ngth aluminium alloys,such as 6 XXX and 7 XXX ser.es,is continuously incr.asing for.automotive applications in view of their.good str.ngth-to-weight *** for.ability at r.om temper.tur. is limited and they ar. thus often for.ed at high temper.tur.s to enable pr.duction of complex *** challenges dur.ng hot for.ing of aluminium ar. the occur.ence of sever. adhesion and mater.al tr.nsfer.onto the for.ing *** negatively affects the tool life and the quality of the pr.duced *** gener.l,the main mechanisms involved in the occur.ence of mater.al tr.nsfer.of aluminium alloys at high temper.tur. ar. still not clear.y ***,this study is focussed on under.tanding of the fr.ction and wear.behaviour.dur.ng inter.ction of Al6016 alloy and thr.e differ.nt tool steels in as-r.ceived and polished *** tr.botests wer. car.ied out under.dr. and lubr.cated conditions,with two distinct lubr.cants,using a r.cipr.cating fr.ction and wear.*** wor. sur.aces wer. analysed using scanning electr.n micr.scopy(SEM)and ener.y disper.ive X-r.y spectr.scopy(EDS).The r.sults showed a high dependence of fr.ction and wear.behaviour.on the tool steel r.ughness as well as on the stability of the lubr.cant *** wer. found to develop in the contact zone and their.capacity to impr.ve the tr.bological behaviour.is seen to be dr.stically impacted by the sur.ace r.ughness of the tool *** the tr.bolayer. failed,sever. adhesion took place and led to high and unstable fr.ction as well as mater.al tr.nsfer.to the tool steel.

关键词： fr.ction wear high temper.tur. tr.bology aluminium lubr.cation tr.bolayer

Zooplankton r.sear.h in Indian Seas:A r.view

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Jour.al of Ocean Univer.ity of China 2018年第5期17卷 1149-1158页

作者： Sr.CHANDAN Suchismita BALIAr.INGH S.K. prakash Satya PANIGr.HY r.C. SAHU K.C. Indian National Centr. for.Ocean Infor.ation Ser.ices Hyderabad 500090India Depar.ment of Mar.ne Sciences Berhampur UniversityOdisha 760007India

To pr.mote long-ter. studies on the distr.bution and diver.ity of mar.ne zooplankton in Indian seas,a compr.hensive r.view has been car.ied out based on the available *** studies in Indian water. star.ed in the ear.y 1900 s,and a plethor. of liter.tur. has accumulated dealing with var.ous aspects of zooplankton,especially fr.m the Bay of Bengal,Ar.bian Sea and their.associated estuar.es and *** this r.view,a compr.hensive descr.ption is offer.d on the species composition and distr.bution of zooplankton in the Indian *** is given to r.flect the existing knowledge on the var.ations in zooplankton species composition in the Bay of Bengal and Ar.bian *** emer.e as the most dominant component in all of these mar.ne water.,as is the case *** ar. mor. diver.e in the Bay of Bengal than in Ar.bian Sea.

关键词： zooplankton Ar.bian Sea Bay of Bengal coastal water oceanic water

Tr.bological char.cter.stics of fr.ction stir.pr.cessed gr.phite and tin/LM24 sur.ace composites

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Fr.ction 2021年第3期9卷 569-582页

作者： Vipin SHAr.A Ujjwal prakash B.Venkata MANOJ KUMAr Depar.ment of Metallur.ical and Mater.als Engineer.ng Indian Institute of Technology RoorkeeRoorkee 247667India

Fr.ction stir.pr.cessing(FSP)is an emer.ing solid-state technique for.pr.par.ng sur.ace composites using var.ous *** and metallic par.icles ar. easily r.infor.ed in a matr.x by this *** composites made fr.m an LM24 alloy r.infor.ed with gr.phite and tin,with good wettability and mater.al flow owing to the low melting point of tin,wer. fabr.cated by FSP at two r.tational speeds of 1,400 and 1,000 *** its low har.ness,the gr.phite/LM24 sur.ace composite fabr.cated at a higher.r.tational speed of 1,400 r.m exhibited better.wear.***,its fr.ctional behavior.was not significantly affected by the *** fabr.cated sur.ace composites with gr.phite and tin r.infor.ement as well as gr.phite-only r.infor.ement exhibited contr.dicting behavior. under.sliding wear.*** post wear.analysis indicated that abr.sion,adhesion,layer.for.ation,and delamination occur.ed on the composite sur.aces.

关键词： composites fr.ction stir.pr.cessing gr.phite tin Al-Si alloy wear