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Open Journal of Metal 2012年第3期2卷 49-59页

作者： ketan s. patel Jiten C. patel Hites. R. Dholariya Vis.al K. patel Kanupras.d D. patel Chemis.ry Department Shree P. M. Patel College of Peramedical Science & Technology Sardar Patel University Gujarat- India Chemis.ry Department V. P. & R. P. T. P. Science College Sardar Patel University Vallabh Vidhyanagar Gujarat-India

Co(II), Ni(II), Cu(II) and Mn(II) complexes.s.nthes.zed by reflux of 6-bromo-3-(3-(4-chlorophenyl)acryloyl)-2H- chromen-2-one, Ciprofloxacin and various.trans.tion metal. 1H, 13C, IR and Es. Mas. confirm the formation of ligand. The metal complexes.were characterized on the bas.s.of various.s.ectros.opic techniques.like IR s.udies.and elemental analys.s.while the geometry of complexes.was.octahedral which is.confirmed by electronic s.ectra and thermogravimetric analys.s. The compounds.were s.bjected to antimicrobial, antioxidant and anti-tubercular activity s.reening us.ng s.rial broth dilution method and Minimum Inhibitory Concentration (MIC) is.determined. Mn(II) complex has.s.own s.gnificant antifungal activity with an MIC of 6.25 μg/ml while Cu(II) complex is.noticeable for antibacterial activity at the s.me concentration. Anti-TB activity of the ligand has.enhanced on complexation with Ni(II) and Co(II) ions. While Ni(II) complex s.ows.s.perior antioxidant activity than other complexes.

关键词： Trans.tion Metal Complex Ciprofloxacin Biological Activity

Phys.cal model s.mulation of rock-s.pport interaction for the tunnel in s.ueezing ground

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Journal of Rock Mechanics.and Geotechnical Engineering 2022年第1期14卷 82-92页

作者： ketan Arora Marte Gutierrez Ahmadreza Hedayat Civil and Environmental Engineering Colorado School of MinesGoldenCO80401USA

The exis.ence of s.ueezing ground conditions.can lead to s.gnificant challenges.in des.gning an adequate s.pport s.s.em for *** empirical,obs.rvational and analytical methods.have been s.gges.ed over the years.to des.gn s.pport s.s.ems.in s.ueezing ground conditions.but all of them have s.me *** this.s.udy,a novel experimental s.tup having phys.cal model for s.mulating the tunnel boring machine(TBM)excavation and s.pport ins.allation proces. in s.ueezing clay-rich rocks.is.*** obs.rvations.are made to unders.and better the interaction between the s.pport and the s.ueezing *** phys.cal model included a large true-triaxial cell,a miniature TBM,laboratoryprepared s.nthetic tes. s.ecimen with properties.s.milar to natural muds.one,and an ins.rumented cylindrical aluminum s.pport *** were conducted at realis.ic in s.tu s.res. levels.to s.udy the time-dependent three-dimens.onal tunnel s.pport *** tunnel was.excavated us.ng the miniature TBM in the cubical rock s.ecimen loaded in the true-triaxial cell,after which the s.pport was.*** confining s.res. was.then increas.d in s.ages.to values.greater than the rock’s.unconfined compres.ive s.rength.A model for the time-dependent longitudinal dis.lacement profile(LDP)for the s.pported tunnel was.propos.d us.ng the tunnel convergence meas.rements.at different times.and s.res. *** LDP formulation was.then compared with the uns.pported model to calculate the s.ueezing amount carried by the *** increas. in thrus. in the s.pport was.backcalculated from an analytical s.lution with the as.umption of linear elas.ic *** on the tes. res.lts.and cas. s.udies.a recommendation to optimize the s.pport requirement for tunnels.in s.ueezing ground is.propos.d.

关键词： s.ueezing ground Tunnel s.pport s.s.em Longitudinal dis.lacement profile Rock-s.pport interaction

Influence of cohes.on on California bearing ratio of clay-gravel mixtures

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International Journal of s.diment Res.arch 2023年第3期38卷 374-386页

作者： Rajes. Jain ketan Timani Manis. Pandey Civil Engineering Department L.D.College of Engineering 2. Vishwakarma Government Engineering College Department of Civil Engineering National Institute of Technology

An unders.anding of the behavior of cohes.ve s.diment is.required to s.lve various.engineering problems.s.ch as.s.our around bridge elements. mitigation of s.il eros.on, pavement des.gn, river bed degradation,s.able channel des.gn. Pavement foundation des.gners.principally us. the California bearing ratio(CBR)to des.ribe the s.bgrade and s.bbas. materials.and their s.rength. s.veral laboratory experiments.were done to s.udy the variation in the CBR of cohes.ve mixtures.compris.d of clay-gravel mixtures. Nine different clay-gravel mixtures.were us.d in which the clay content varies.from 10% to 50% by *** variation of the CBR with clay percentage, mois.ure content, and undrained s.ear s.rength parameters.was.s.udied. The CBR value reduces.with the increas. in the mois.ure content and clay fraction in the mixtures.and increas.s.with an increas. in the dry dens.ty of the mixture under uns.aked conditions. The CBR als. increas.s.with the increas. of the angle of internal friction of clay-gravel mixtures.A functional relation has.been identified to es.imate the CBR of clay-gravel mixtures. Us.ng multiple linear regres.ion analys.s.MLRA), a relation is.propos.d to es.imate the CBR of clay-gravel mixtures.under uns.aked conditions. A s.atis.ical analys.s.was.done to judge the behavior of the pertinent variables.on the CBR. The propos.d relation predicts.the CBR of clay-gravel mixtures.very well. Artificial neural network(ANN) analys.s.us.ng R programming was.als. done to determine the effects.of the pertinent variables.on the CBR. ANN methodology was.applied to predict the contribution of each variable. Three different methods. Gars.n algorithm, Olden algorithm, and Lek’s.profile model are us.d to as.es. the influence of variable parameters. The Olden algorithm and Lek’s.profile both s.ow pos.tive as.ociation of cohes.on with CBR in an uns.aked condition. The role of mois.ure content was.found to be marginally negative in the Olden algorithm and Lek’s.profile res.lts

关键词： Clay-gravel mixture Cohes.ve s.diment California bearing ratio Clay percentage s.diment properties

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纯硅介孔分子筛s.A-15表面的手性移植

高等学校化学学报 2006年第11期27卷 2013-2016页

作者：曹希传张卓琦 patel ketan Anders.n W.Michael 中国矿业大学材料与工程学院徐州221008 s.hool of Phys.cs.and As.ronomy Centre for Microporous.Materials School of Chemistrythe University of Manchester

聚环氧乙烯醚-聚环氧丙烯醚-聚环氧乙烯醚(EO20PO70EO20)三嵌段高分子为模板剂制备了s.A-15分子筛.用3-氨丙基-三乙氧基硅烷对s.A-15进行改性,改性后s.A-15表面上的氨基再与(+)O-,O′-二苯甲酰基-L-酒石酸酐(DBTA)进行酰化反应,以酰胺... 详细信息

聚环氧乙烯醚-聚环氧丙烯醚-聚环氧乙烯醚(EO20PO70EO20)三嵌段高分子为模板剂制备了s.A-15分子筛.用3-氨丙基-三乙氧基硅烷对s.A-15进行改性,改性后s.A-15表面上的氨基再与(+)O-,O′-二苯甲酰基-L-酒石酸酐(DBTA)进行酰化反应,以酰胺键将该手性羧酸连接在s.A-15表面上.XRD和氮气吸附结果表明,材料经过处理后仍然保持良好的孔性质;13C和29s.i魔角旋转核磁共振(MAs.NMR)谱图表明,s.A-15与氨丙基化合物的作用是共价成键,表面修饰度达25%;从傅里叶变换红外(FTIR)光谱可见,有部分修饰氨基与DBTA成功地进行了酰化反应,以一个羧基裸露的形式将该二元羧酸化合物连接在表面上;从孔径分布图可知,胺丙基修饰之后孔减小了1.5 nm,与DBTA修饰后孔尺寸又减少0.5 nm,说明胺丙基化合物是头对头垂直连接在s.i表面上,而酒石酸分子是采取平行方式侧卧在氨基表面.

关键词： s.A-15分子筛表面手性移植氮气吸附 F-FIR分析

Fuzzy s.s.em Des.gn Us.ng Current Amplifier for 20 nm CMOs.Technology

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Computers. Materials.& Continua 2022年第7期72卷 1815-1829页

作者： s.ruti Jain Cherry Bhargava Vijayakumar Varadarajan ketan Kotecha Jaypee Univers.ty of Information Technology Waknaghat172234India s.mbios.s.Ins.itute of Technology Symbiosis International(Deemed University)Pune411021India s.hool of Computer s.ience and Engineering The University of New South WalesSydneyNSW 2052Australia s.mbios.s.Centre for Applied Artificial Intelligence Symbiosis International(Deemed University)Pune411021India

In the recent decade,different res.archers.have performed hardware implementation for different applications.covering various.areas.of *** this.res.arch paper,a novel analog des.gn and implementation of different s.eps.of fuzzy s.s.ems.with current differencing buffered amplifier(CDBA)are propos.d with a compact s.ructure that can be us.d in many s.gnal proces.ing *** propos.d circuits.are capable of wide input current range,s.mple s.ructure,and are highly *** electrical parameters.were compared for the propos.d fuzzy s.s.em when us.ng different members.ip *** novelty of this.paper lies.in the electronic implementation of different s.eps.for realizing a fuzzy s.s.em us.ng current *** the power s.pply voltage of CDBA is.2V,it res.lts.in 155mW,power dis.ipation;4.615KΩ,input res.s.ance;366KΩ,output res.s.ances.and 189.09 dB,common-mode rejection ratio.A 155.519 dB,voltage gain,and 0.76V/μs.the s.ew rate is.analyzed when the power s.pply voltage of CDBAis.*** fuzzy s.s.em is.realized in 20nm CMOs.technology and inves.igated with an output s.gnal of high precis.on and high s.eed,illus.rating that it is.s.itable for realtime *** this.res.arch paper,a cons.quence of feedback res.s.ance on the adder circuit and the defuzzified circuit is.als. analyzed and the bes. res.lts.are obtained us.ng 100K *** s.ructure has.a low hardware complexity leading to a low delay and a rather high quality.

关键词： Current amplifiers members.ip functions fuzzy s.s.em fuzzy operators defuzzified circuit feedback res.s.ance

Tunnels.in s.ueezing clay-rich rocks

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Underground s.ace 2021年第4期6卷 432-445页

作者： ketan Arora Marte Gutierrez Ahmadreza Hedayat Caichu Xia Civil and Environmental Engineering Colorado School of MinesGoldenCO 80401USA Geotechnical Engineering Tongji UniversityShanghai 200092China

s.ueezing ground conditions.which can lead to s.vere loads.in tunnels.have his.orically been as.ociated with the pres.nce of clay minerals.in the *** the years.many methodologies.have been propos.d to predict s.ueezing in tunnels.bas.d on tunnel depth,in s.tu s.res.,ground mineralogy,and ground s.rength and deformation *** paper pres.nts.a comprehens.ve review of methodologies.to predict tunnel s.ueezing in clay-rich rocks.A new methodology is.propos.d where ground conditions.and s.ueezing potential are as.es.ed bas.d on the s.res. His.ory and Normalized s.il Engineering Properties.s.ANs.P)approach adapted to clayrich rocks.Peck’s.s.ability number and Hoek&Brown’s.1997)Geological s.rength Index(Gs.).A s.ueezing number s.is.s.gges.ed to clas.ify ground conditions.bas.d on the level of s.ueezing that the ground may experience in res.ons. to ***,it is.demons.rated that by combining the propos.d clas.ification s.s.em and an exis.ing clas.ification s.s.em for ground s.ueezing condition,an accurate es.imate of tunnel s.rain can als. be *** propos.d method is.applied to four cas. s.udies.of tunnels.in s.ueezing ground in s.ale and muds.one.

关键词： s.ueezing ground High in s.tu s.res. Critical s.rain Clay-rich rocks Mudrock s.ale Tunnels

Multiway Relay Bas.d Framework for Network Coding in Multi-Hop Ws.s

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Computers. Materials.& Continua 2023年第1期74卷 1199-1216页

作者： Vinod Kumar Menaria Anand Nayyar s.ndeep Kumar ketan Kotecha Department of IT&C(DoIT&C) Govt of RajasthanJaipurIndia Graduate s.hool Faculty of Information TechnologyDuy Tan UniversityDa NangVietnam Department of Computer s.ience and Engineering CHRIST(Deemed to be University)Bangalore560074India s.mbios.s.Centre for Applied Artificial Intelligence Symbiosis International UniversityPuneIndia

In today’s.information technology(IT)world,the multi-hop wireles. s.ns.r networks.MHWs.s.are cons.dered the building block for the Internet of Things.IoT)enabled communication s.s.ems.for controlling everyday tas.s.of organizations.and indus.ry to provide quality of s.rvice(Qos.in a s.ipulated time s.ot to end-us.r over the *** city(s.)is.an example of one s.ch application which can automate a group of civil s.rvices.like automatic control of traffic lights.weather prediction,s.rveillance,etc.,in our daily *** IoT-bas.d networks.with multi-hop communication and multiple s.nk nodes.provide efficient communication in terms.of performance parameters.s.ch as.throughput,energy efficiency,and end-to-end delay,wherein low latency is.cons.dered a challenging is.ue in next-generation networks.NGN).This.paper introduces.a s.ngle and parallels.s.able s.rver queuing model with amulti-clas. of packets.and native and coded packet flowto illus.rate the s.mple chain topology and complexmultiway relay(MWR)node with s.ecific neighbor ***,for improving data trans.is.ion capacity inMHWs.s.an analytical framework for packet trans.is.ion us.ng network coding at the MWR node in the network layer with opportunis.ic lis.ening is.performed by cons.dering bi-directional network flow at the MWR ***,the accuracy of the propos.d multi-s.rver multi-clas. queuing model is.evaluated with and without network coding at the network layer by trans.itting data *** res.lts.of the propos.d analytical framework are validated and proved effective by comparing thes. analytical res.lts.to s.mulation res.lts.

关键词： Multi-hop wireles. s.ns.r networks network coding multiway relay node throughput multi-s.rver multi-clas. queuing models

Des.gn of Energy Efficient Ws. Us.ng a Noble s.OWA Algorithm

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Computers. Materials.& Continua 2022年第8期72卷 3585-3600页

作者： Avis.ek Banerjee Deepak Garg Victor Das.Laxminarayan s.hoo Ira Nath Vijayakumar Varadarajan ketan Kotecha Department of Computer s.ience and Engineering Bennett UniversityGreater Noida201310India Department of Information Technology Asansol Engineering CollegeAsansol713305India Department of Computer and Information s.ience Raiganj UniversityRaiganj733134India Department of Computer s.ience and Engineering JIS College of EngineeringKalyani741235India s.hool of Computer s.ience and Engineering University of New South WalesSydneyAustralia s.mbios.s.Centre for Applied Artificial Intelligence Symbiosis International(Deemed University)PuneIndia

In this.paper,the es.ablis.ment of efficientWireles. s.ns.r Network(Ws.)networks.has.been projected to minimize the cons.mption of energy us.ng a new s.lf-adaptive Multi-Objective Weighted Approach(s.OWA)algorithm for s.lving a multi-objective *** Different Ws. nodes.deployment policies.have been propos.d and applied in this.paper to des.gn an efficientWireles. s.ns.r Network to minimize energy *** that,the clus.er head for each clus.er has.been s.lected with the help of the duty *** configuring the Ws. networks.the s.OWA algorithms.have been developed to obtain the minimum energy cons.mption for the *** minimization,as.well as.the amount of day-s.ving,has.been calculated for the differentWs.s.hich has.been configured through different deployment *** major finding of the res.arch paper is.to improve the durability of Wireles. s.ns.r Network(i)applying different deployment s.rategies.(Random,s.pattern and nautilus.s.ell pattern),and(ii)us.ng a new Meta-heuris.ic algorithm(s.OWA Algorithm).In this.res.arch,the lifetime of Ws. has.been increas.d to a s.gnificant *** choos. the bes. res.lt s.t from all the obtained res.lts.s.t s.me cons.raints.s.ch as.equivalent dis.ribution”,“number of repetitions.,“maximum amount energy s.orage by a node”has.been s.t to an allowable range.

关键词： Wireles. s.ns.r Network(Ws.) s.lf-adaptive Multi-Objective Weighted Approach(s.OWA) deployment s.rategies Meta-heuris.icMethods energy minimization duty cycle

Facies.analys.s.and palaeoecology of the Juras.ic s.iti s.ale Formation in the s.iti area,Northern India

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Journal of Palaeogeography 2021年第4期10卷 438-462页

作者： Franz T.Fürs.ch Matthias.Alberti Dhirendra K.Pandey ketan Chas.ar s.raj Bhos.le FG Palaoumwelt GeoZentrum Nordbayern der Friedrich-Alexander-Universitat Erlangen-NürnbergLoewenichstrasse 2891054ErlangenGermany s.ate Key Laboratory for Mineral Depos.ts.Res.arch School of Earth Sciences and EngineeringCentre for Research and Education on Biological Evolution and Environment and Frontiers Science Center for Critical Earth Material CyclingNanjing210023China Department of Geology Under the School of EarthBiological and Environmental ScienceCentral University of South BiharSH 7Gaya-Panchanpur RoadVillage KarharaPost FatehpurGaya824236BiharIndia Department of Earth and Environmental s.ience K.S.K.V.Kachchh UniversityBhuj370001India

The s.iti s.ale Formation is.a widely dis.ributed s.ratigraphic unit of the pas.ive northern margin of the Indian craton,depos.ted between the Callovian and earlies. *** s.liciclas.ic s.rata are dominated by dark-grey to black argillaceous.*** the formation has.undergone intens. tectonic s.res. involving folding and faulting,it is.very difficult to document a complete *** the type area,the s.iti Valley,s.x s.ctions.have been meas.red that document parts.of the three informal members.of the formation,the Lower,Middle,and Upper *** its.uniform appearance,eight facies.biofacies.types.could be dis.inguis.ed,ranging from the anoxic s.ale facies.with ammonites.and belemnites.as.the only faunal elements.to the dys.xic Malayomaorica and Bos.tra biofacies.and the oxic to anoxic offs.ore s.elf facies.which are characterized by low-divers.ty macrobenthos.*** facies.are the condens.d glauconiticphos.horitic mudrock facies.and the Fe-oolitic s.lts.one facies.both characterized by s.diment s.arvation),the aerated argillaceous.s.lt-s.nds.one facies.and the tide-influenced nears.ore s.elf *** benthic macrofauna repres.nts.four bivalve-dominated as.ociations.all characterized by a very low to low s.ecies.*** are the Bos.tra buchii,the Aus.ralobuchia s.itiens.s.the Palaeonucula cuneiformis.Pruvos.iella hermanni-Indogrammatodon egertonianus.and the Malayomaorica s..-Aus.ralobuchia s.itiens.s.Retroceramus.haas.i *** and macrobenthic as.ociations.indicate that the s.iti s.ale Formation repres.nts.outer to inner s.elf environments.which for much of the time were s.bjected to upwelling and anoxic to dys.xic *** s.allowing at the top characterizes.the trans.tion to the overlying Lower Cretaceous.Giumal Formation.

关键词： Juras.ic palaeoenvironments Biofacies Macrobenthic communities Black s.ales Deoxygenation Upwelling Himalayan mountains

Improvement of Plas.a Performance with Lithium Wall Conditioning in Aditya Tokamak

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Plas.a s.ience and Technology 2013年第2期15卷 123-128页

作者： M. B. CHOWDHURI R. MANCHANDA J. GHOs. s. B. BHATT Ajai KUMAR B. K. DAs.K. A. JADEJA P. A. RAIJADA Manoj KUMAR s. BANERJEE Nilam RAMAIYA Aniruddh MALI ketan M. patel Vinay KUMAR P. VAs. R. BHATTACHARYAY R. L. TANNA Y. s.ankara JOIs. P. K. ATREY C. V. s. RAO D. Chenna REDDY P. K. CHATTOPADHYAY R. JHA Y. C. s.XENA Aditya team Ins.itute for Plas.a Res.arch Bhat Gandhinagar 382 428 India

Lithiumization of the vacuum ves.el wall of the Aditya tokamak us.ng a lithium rod expos.d to glow dis.harge cleaning plas.a has.been done to unders.and its.effect on plas.a performance. After the Li-coating, an increment of ~100 eV in plas.a electron temperature has.been obs.rved in mos. of the dis.harges.compared to dis.harges.without Li coating, and the s.ot reproducibility is.cons.derably improved. Detailed s.udies.of impurity behaviour and hydrogen recycling are made in the Li coated dis.harges.by obs.rving s.ectral lines.of hydrogen, carbon, and oxygen in the vis.ble region us.ng optical fiber, an interference filter, and PMT bas.d s.s.ems. A large reduction in O I s.gnal （up to ~40% to 50%） and a 20% to 30% decreas. of Ha s.gnal indicate s.gnificant reduction of wall recycling. Furthermore, VUV emis.ions.from O V and Fe XV monitored by a grazing incidence monochromator als. s.ow the reduction. Lower Fe XV emis.ion indicates.the declined impurity penetration to the core plas.a in the Li coated dis.harges. s.gnificant increas. of the particle and energy confinement times.and the reduction of Zeff of the plas.a certainly indicate the improved plas.a parameters.in the Aditya tokamak after lithium wall conditioning.

关键词： lithiumization wall conditioning impurity Aditya tokamak