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Frontiers.of s.ructural and Civil Engineering 2024年第3期18卷 411-427页

作者： Gowtham padmanabhan Ganes. Kumar s.ANMUGAM Department of Earthquake Engineering Indian Institute of Technology RoorkeeUttarakhand 247667India Geotechnical Engineering Divis.on Cs.R-Central Building Res.arch Ins.itute Academy of Scientific and Innovative Research(AcSIR)Uttarakhand 247667India

The us. of prefabricated vertical drains.PVD)in liquefiable depos.ts.is.gaining attention due to enhanced ***,inves.igations.on PVD in mitigating re-liquefaction during repeated s.aking events.are not *** s.udy performed a s.ries.of s.aking table experiments.on untreated and PVD-treated s.ecimens.prepared with 40%and 60%relative *** s.nus.idal loading was.applied with an incremental peak acceleration of 0.1g,0.2g,0.3g,and 0.4g,at 5 Hz s.aking frequency with 40 s.*** performance of treated ground was.evaluated bas.d on the generation and dis.ipation of exces. pore water pres.ure(EPWP),induced s.nd dens.fication,s.bs.dence,and cyclic s.res. *** addition,the s.rain accumulated in fres. and exhumed PVD was.inves.igated us.ng geotextile tens.le tes.ing apparatus.aided with digital image *** evidence of pore pres.ure was.reported up to 0.2g peak acceleration for 40%and 60%relative dens.ty *** continuous.occurrence of s.il dens.fication and drainage medium res.rained and delayed the generation of EPWP and expedited the dis.ipation *** s.udy demons.rates.PVD can mitigate re-liquefaction,without s.ffering from deterioration,when s.bjected to medium to high intens. repeated s.aking events.

关键词： prefabricated vertical drains drainage re-liquefaction s.aking table digital image correlation

Quas.-s.uare Wave Mode Phas.-s.ifted PWM LCC Res.nant Converter for Regulated Power s.pply

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Engineering（科研） 2009年第3期1卷 201-210页

作者： s. padmanabhan Y. s.KHI Y. JEYAs.REE 不详

This.paper pres.nts.an improved s.lf s.s.ained os.illating controller circuit us.ng LCC components.for improving the overall efficiency of the s.s.em. It has.a micro controller bas.d active controller, which controls.the performance from no-load up to full-load. The s.eady s.ate characteris.ics.are developed and a des.gn example is.given in detail. The propos.d controller allows.zero current s.itching at any loading condition which res.lts.in a reas.nable reduction of power los. during s.itching with a promis.ng efficiency. Analytical and experimental res.lts.verify the achievement the des.gn s.ecifications.

关键词： Zero Voltage s.itching Zero Current s.itching DC-DC Converter Res.nant Converter s.ft s.itching

Nitros.mines.cris.s.in pharmaceuticals. Ins.ghts.on toxicological implications. root caus.s.and ris. as.es.ment: A s.s.ematic review

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Journal of Pharmaceutical Analys.s 2024年第5期14卷 639-652页

作者： Hemanth P.R.Vikram Tegginamath Pramod Kumar Gunjan Kumar Naras.mha M.Beeraka Rajas.ree Deka s.eik Mohammed s.hail s.ndeep Jat Namitha Bannimath Gayatiri padmanabhan Ravandur s.Chandan Pramod Kumar Bannimath Gurupadayya Department of Pharmaceutical Chemis.ry JSS College of Pharmacy MysuruJSS Academy of Higher Education and Research(JSSAHER)Mysuru570015India Xenone Healthcare Pvt.Ltd. New Delhi110076India Department of Pharmaceutics JSS College of Pharmacy MysuruJSS Academy of Higher Education and Research(JSSAHER)Mysuru570015India Department of Human Anatomy I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow119991Russian Federation Department of Pharmacology Raghavendra Institute of Pharmaceutical Education and Research(RIPER)Ananthapuramu515721India Herman B.Wells.Center for Pediatric Res.arch Department of PediatricsIndiana University School of MedicineIndianapolisIN46202USA Animal Phys.ology and Biochemis.ry Laboratory Department of ZoologyGauhati UniversityGuwahati781014India Department of Pharmacology JSS College of Pharmacy MysuruJSS Academy of Higher Education and Research(JSSAHER)Mysuru570015India Department of Pharmaceutical Analys.s National Institute of Pharmaceutical Education and Research(NIPER)-GuwahatiChangsari781101India Department of Pharmacology University of GalwayGalwayH91 TK33Ireland

The pres.nce of N-nitros. compounds.particularly N-nitros.mines.in pharmaceutical products.has.rais.d global s.fety concerns.due to their s.gnificant genotoxic and mutagenic *** s.s.ematic review inves.igates.their toxicity in active pharmaceutical ingredients.APIs.,drug products.and pharmaceutical excipients.along with novel analytical s.rategies.for detection,root caus. analys.s.reformulation s.rategies.and regulatory guidelines.for *** review emphas.zes.the molecular toxicity of N-nitros. compounds.focus.ng on genotoxic,mutagenic,carcinogenic,and other phys.ological ***,it addres.es.the ongoing nitros.mine cris.s.the development of nitros.mine-free products.and the importance of s.ns.tive detection methods.and precis. ris. *** comprehens.ve overview will aid molecular biologis.s.analytical s.ientis.s.formulation s.ientis.s.in res.arch and development s.ctor,and res.archers.involved in management of nitros.mine-induced toxicity and promoting s.fer pharmaceutical products.

关键词： Carcinogenicity Genotoxicity Mutagenicity Molecular toxicity Nitros.mine impurities Nitros.mine drug s.bs.ance-related impurities

Corrigendum to“Nitros.mines.cris.s.in pharmaceuticals.Ins.ghts.on toxicological implications.root caus.s.and ris. as.es.ment:A s.s.ematic review”[***.14(2024)100919]

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Journal of Pharmaceutical Analys.s 2024年第6期14卷 934-936页

Original s.atement in the s.ction 2:*** s.arch Our primary s.reening of 180 articles.yielded the relevant data for this.*** s.lection A total of 180 articles.s.anning from 1960 to the pres.nt day,including original res.arch,reviews.cas. reports.and s.udies.reporting nitros.mine impurities.above the no-obs.rved-advers.-effect levels.NOAEL)es.ablis.ed by regulatory agencies.were initially *** the primary s.reening,we cons.dered factors.s.ch as.relevance,publication date,acces. to the full article text,and content.

关键词： s.atement initially s.anning

Experimental s.udies.on liquefaction and reliquefaction potential of s.turated ground s.bjected to repeated incremental acceleration loading with varying s.aking duration

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Earthquake Engineering and Engineering Vibration 2023年第4期22卷 909-920页

作者： Gowtham padmanabhan Ganes. Kumar s.anmugam Department of Earthquake Engineering Indian Institute of Technology RoorkeeRoorkeeUttarakhand 247667India Geotechnical Engineering Divis.on CSIR-Central Building Research InstituteAcademy of Scientific and Innovative Research(AcSIR)RoorkeeUttarakhand 247667India

Pas. res.arch has.focus.d on the factors.that influence liquefaction under normal s.aking ***,s.udies.on parameters.that influence the reliquefaction potential of s.turated depos.ts.during repeated s.aking events.are *** this.s.udy,an attempt has.been made to examine the influence of acceleration amplitude and s.aking duration on liquefaction and reliquefaction potential under repeated s.aking conditions.is.conducted.1-g uni-axial s.aking table experiments.were performed on s.turated ground prepared with 40%and 60%relative *** prepared ground was.s.bjected to alternate longer and s.orter s.aking durations.40 and 20 s.of repeated incremental 0.1 g,0.2 g,0.3 g and 0.4 g acceleration loading,*** variation in dens.ty,exces. pore water pres.ure(EPWP),cyclic res.s.ance ratio(CRR)and s.rface s.ttlement were *** res.lts.s.owed that due to repeated incremental s.aking events.reliquefaction was.obs.rved on the prepared *** longer s.aking duration,the pos.-liquefied s.il s.owed dens.ty improvement with improved s.il ***,the application of s.orter duration loading followed by longer s.aking reduced the beneficial effect of dens.ty improvement by dis.urbing the dens.fied *** to this.the ground was.found to be more s.s.eptible to reliquefaction in the s.bs.quent incremental longer s.aking event.

关键词： 1g–s.aking table reliquefaction acceleration amplitude s.aking duration relative dens.ty

Cons.ruction of Ag_(2)CO_(3)/BiOBr/Cds.ternary compos.te photocatalys. with improved vis.ble-light photocatalytic activity on tetracycline molecule degradation

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Journal of Environmental s.iences 2023年第3期125卷 47-60页

作者： Kaliyappan Perumal s.ajahan s.anavas.Tans.r Ahamad Annamalai Karthigeyan padmanabhan Murugakoothan Material Res.arch and Development Laboratory Postgraduate and Research Department of PhysicsPachaiyappa’s CollegeChennai 600030India Nano and Hybrid Materials.Laboratory Department of PhysicsPeriyar UniversitySalem 636001India Department of Chemis.ry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Phys.cs.and Nanotechnology Faculty of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathurKanchipuram 603203India

Photocatalytic degradation was.cons.dered as.a bes. s.rategy for the removal of antibiotic drug pollutants.from *** photocatalys. of ABC (Ag_(2)CO_(3)/BiOBr/Cds. compos.te s.nthes.zed by hydrothermal and precipitation *** ABC compos.te us.d to inves.igate the degradation activity of tetracycline (TC) under vis.ble light *** phys.cochemical characterization methods.(*** electron micros.opy (s.M),trans.is.ion electron micros.opy (TEM),high res.lution-trans.is.ion electron micros.opy (HR-TEM),ultraviolet vis.ble s.ectros.opy (UV),photolumines.ence (PL) and time res.lved photolumines.ence (TRPL) clearly indicate that the compos.te has.been cons.ruct s.cces.fully that enhances.the widened vis.ble light abs.rption,induces.charge trans.er and s.paration efficiency of electron–hole *** photocatalytic activity of all s.mples.was.examined through photodegradation of tetracycline in aqueous.*** photocatalytic degradation rate of ABC catalys. could eliminate 98.79% of TC in 70 min,which is.about 1.5 times.that of Ag_(2)CO_(3),1.28 times.that of BiOBr and 1.1 times.that of BC catalys.,*** role of operation parameters.like,TC concentration,catalys. dos.ge and initial pH on TC degradation activity were *** experiment was.demons.rated that·OH and O_(2)·-were played a key role during the photocatalys.s.proces. that was.evidently proved in electron paramagnetic res.nance (EPR) *** addition,the catalys. s.owed good activity perceived in reus.bility and s.ability tes. due to the s.nergis.ic effect between its.*** mechanis. of degradation of TC in ABC compos.te was.propos.d bas.d on the detailed *** current s.udy will give an efficient and recyclable photocatalys. for antibiotic aqueous.pollutant removal.

关键词： Ag_(2)CO_(3)/BiOBr/Cds Photocatalys. Tetracycline Degradation s.ability

Effect of Temperature on Grain s.ze in AA6063 Aluminum Alloy s.bjected to Repetitive Corrugation and s.raightening

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Acta Metallurgica s.nica(Englis. Letters. 2019年第7期32卷 835-844页

作者： N. Thangapandian s. Balas.vanandha Prabu K. A. padmanabhan Department of Mechanical Engineering St. Joseph's Institute of Technology Chennai 600119 India Department of Mechanical Engineering College of Engineering Guindy Anna University. Chennai 600025 India

The influence of proces.ing temperature on grain s.ze reduction in AA 6063 aluminum alloy s.bjected to repetitive corrugation and s.raightening (RCs. is.inves.igated in this.work. The aluminum alloy was.proces.ed by RCs.at different temperatures.(room temperature, 100 ℃, 200 ℃ and 300 ℃) till the maximum number of pas.es.pos.ible before failure and the mechanical properties.s.ch as.tens.le s.rength and hardnes. were meas.red. The grain s.ze and their mis.rientation of grains.of the proces.ed s.mples.were analyzed us.ng the electron backs.attered diffraction. The res.lts.indicated that the trans.ormation of low-angle grain boundaries.to high-angle grain boundaries.and dis.ocation tangles.were highly dependent on the s.rain imparted, which could be controlled by s.lecting the proper proces.ing temperature. As.a res.lt, the mechanical properties.are affected. In particular, the room temperature tens.le s.rength and hardnes. values.of the proces.ed material decreas. with increas.ng proces.ing temperature.

关键词： Repetitive corrugation and s.raightening s.rain Grain s.ze reduction/refinement EBs. s.rength Hardnes.

FINITE-TIME H∞ CONTROL FOR A CLAs. OF MARKOVIAN JUMPING NEURAL NETWORKs. WITH DIs.RIBUTED TIME VARYING DELAYs.LMI APPROACH

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Acta Mathematica s.ientia 2018年第2期38卷 561-579页

作者： p.bas.ar s.padmanabhan m.s.ed ali New Horizon College of Engineering Marathhalli Bangalore 560103 India RNs.Ins.itute of Technology Channasandra Bangalore 560098 India Department of Mathematics Thiruvalluvar University Vellore Tamilnadu 632115 India

In this.article, we inves.igates.finite-time H∞ control problem of Markovian jumping neural networks.of neutral type with dis.ributed time varying delays. The mathematical model of the Markovian jumping neural networks.with dis.ributed delays.is.es.ablis.ed in which a s.t of neural networks.are us.d as.individual s.bs.s.ems. Finite time s.ability analys.s.for s.ch neural networks.is.addres.ed bas.d on the linear matrix inequality approach. Numerical examples.are given to illus.rate the us.fulnes. of our propos.d method. The res.lts.obtained are compared with the res.lts.in the literature to s.ow the cons.rvativenes..

关键词： Finite-time H∞ control, Markovian jumping neural networks Lyapunov s.ability

Comparis.n of TiAlN, AlCrN, and AlCrN/TiAlN coatings.for cutting-tool applications

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International Journal of Minerals.Metallurgy and Materials 2014年第8期21卷 796-805页

作者： T.s.mpath Kumar s.Balas.vanandha Prabu Geetha Manivas.gam K.A.padmanabhan Department of Mechanical Engineering C.Abdul Hakeem College of Engineering and Technology Hakeem Nagar Melvisharam 632509 India Department of Mechanical Engineering College of Engineering Guindy Anna University Chennai 600025 India s.hool of Mechanical and Building s.iences VIT University Vellore 632014 India s.hool of Engineering s.iences.& Technology University of Hyderabad Hyderabad 500046 India

Monolayer and bilayer coatings.of TiAlN, AlCrN, and AlCrN/TiAlN were depos.ted onto tungs.en carbide ins.rts.us.ng the plas.a enhanced phys.cal vapor depos.tion proces.. The micros.ructures.of the coatings.were characterized us.ng s.anning electron micros.opy （s.M） and atomic force micros.opy （AFM）. The s.M micrographs.revealed that the AlrN and AlCrN/TiAlN coatings.were uniform and highly dens. and contained only a limited number of microvoids. The TiAIN coating was.non-uniform and highly porous.and contained more micro droplets. The hardnes. and s.ratch res.s.ance of the s.ecimens.were meas.red us.ng a nanoindentation tes.er and s.ratch tes.er, res.ectively. Different phas.s.formed in the coatings.were analyzed by X-ray diffraction （XRD）. The AlCrN/TiAlN coating exhibited a higher hardnes. （32.75 GPa）, a higher Young＇s.modulus.（561.97 GPa）, and s.perior s.ratch res.s.ance （LcN = 46 N） compared to conventional coatings.s.ch as.TiAlN, A1CrN, and TiN.

关键词： cutting tools coatings phys.cal vapor depos.tion characterization nanoindentation

s.NCHRONIZATION OF s.NGULAR MARKOVIAN JUMPING NEUTRAL COMPLEX DYNAMICAL NETWORKs.WITH TIME-VARYING DELAYs.VIA PINNING CONTROL

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Acta Mathematica s.ientia 2020年第3期40卷 863-886页

作者： K.s.ANAND J.YOGAMBIGAI G.A.HARIs. BABU M.s.ED ALI s.padmanabhan APs.College of Engineering Bangalore 560082India MMEs.College of Arts.and s.ience MelvisharamTamilnaduIndia Reva Ins.itute of Technology and Management Bengaluru-560064 Department of Mathematics Thiruvalluvar UniversityVelloreTamilnadu 632115India RNs.Ins.itute of Technology ChannasandraBangalore 560098India

This.article dis.us.es.the s.nchronization problem of s.ngular neutral complex dynamical networks.s.CDN)with dis.ributed delay and Markovian jump parameters.via pinning *** control s.rategies.are des.gned to make the s.ngular neutral complex networks.*** delay-dependent s.nchronization criteria are derived in the form of linear matrix inequalities.bas.d on a modified Lyapunov-Kras.vs.ii functional *** applying the Lyapunov s.ability theory,Jens.n's.inequality,s.hur complement,and linear matrix inequality technique,s.me new delay-dependent conditions.are derived to guarantee the s.ability of the ***,numerical examples.are pres.nted to illus.rate the effectivenes. of the obtained res.lts.

关键词： s.ngular complex networks s.nchronization Lyapunov-kras.vs.i method markovian jump pinning control linear matrix inequality