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Amer.can Jour.al of Oper.tions r.sear.h 2017年第5期7卷 285-288页

作者： r. r. k. sharma Depar.ment of Industr.al and Management Engineer.ng Indian Institute of Technology Kanpur India

For.the tr.nspor.ation pr.blem, sharma and sharma [1] have given a ver. computationally efficient heur.stic (r.ns in O(c*n2) time) to give ver. good dual solution to tr.nspor.ation pr.blem. sharma and Pr.sad [2] have given an efficient heur.stic (complexity O(n3) pr.cedur. to give a ver. good pr.mal solution (that is gener.lly non-basic feasible solution) to tr.nspor.ation pr.blem by using the ver. good dual solution given by sharma and sharma [2]. In this paper.we use the solution given by sharma and Pr.sad [2] to get a ver. good Basic Feasible Solution to tr.nspor.ation pr.blem, so that networ. simplex (wor.t case complexity (O(n3*(log(n))) can be used to r.ach the optimal solution to tr.nspor.ation pr.blem. In the second par. of this paper. we give a simple heur.stic pr.cedur. to get a ver. good BFS to linear.pr.gr.mming pr.blem fr.m the solution given by k.r.ar.ar.[3] (that gener.lly pr.duces a ver. good non-basic feasible solution in polynomial time (O(n5.5)). We give a pr.cedur. to obtain a good BFS for.LP by star.ing fr.m the solution given by k.r.ar.ar.[3]. We note that this pr.cedur. (given her.) is significantly differ.nt fr.m the pr.cedur. given in [4].

关键词： Optimal BSF Solution Tr.nspor.ation Pr.blem Linear Pr.gr.mming Pr.blem

Ver.ical Decomposition Appr.ach to Solve Single Stage Capacitated War.house Location Pr.blem (SSCWLP)

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Amer.can Jour.al of Oper.tions r.sear.h 2011年第3期1卷 100-117页

作者： Pr.yank. Ver.a r. r. k. sharma 不详

Single Stage Capacitated War.house Location Pr.blem (SSCWLP) has been attempted by few r.sear.her. in the past. These ar. Geoffr.on and Gr.ves [1], sharma [2], sharma [3] and sharma and Ber.y [4]. In this paper.we give a “ver.ical decomposition” appr.ach to solve SSCWLP that uses Lagr.ngian r.laxation. This way SSCWLP is br.k.n into two ver.ions of capacitated plant location pr.blem (the CPLP_L and CPLP_r. by r.laxing the flow balance constr.ints. For.CPLP_r. we use well k.own Lagr.ngian r.laxations given in liter.tur. (Chr.stofides and Beasley [5] and Nauss [6]);and adopt them suitably for.solving CPLP_L. We show theor.tically in this paper.that SSCWLP can be mor. efficiently solved by techniques of ver.ical decomposition developed in this paper.than the method available in liter.tur. (sharma and Ber.y [4]). Encour.ging computational study is r.por.ed in this paper.

关键词： Single Stage Capacitated War.house Location Pr.blem Linear Pr.gr.mming r.laxation Lagr.ngian r.laxation Ver.ical Decomposition

r.ducing a Lot Sizing Pr.blem with Set up, Pr.duction, Shor.age and Inventor. Costs to Lot Sizing Pr.blem with Set up, Pr.duction and Inventor. Costs

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Amer.can Jour.al of Oper.tions r.sear.h 2017年第5期7卷 282-284页

作者： r. r. k. sharma Syed Moize Ali Depar.ment of Industr.al Engineer.ng Indian Institute of Technology Kanpur India

We r.duce lot sizing pr.blem with (a) Set Up, Pr.duction, Shor.age and Inventor. Costs to lot sizing pr.blem with (b) Set Up, Pr.duction, and Inventor. Costs. For.lot sizing pr.blem (as in (b)), Pochet and Wolsey [1] have given alr.ady integr.l polyhedr.l with polynomial separ.tion wher. a linear.pr.gr.m yield “integer. solutions. Thus pr.blem (b) which we have cr.ated can be mor. easily solved by methods available in liter.tur.. Also with the r.moval of shor.age var.ables is an additional computational advantage.

关键词： Lot Sizing Pr.blem Wagner.Whitin Costs

Developing a New r.for.ulation of Single Level Capacitated Lot Sizing Pr.blem (SLCLSP) with Set up, Shor.age and Inventor. Costs

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Amer.can Jour.al of Oper.tions r.sear.h 2017年第5期7卷 272-281页

作者： r. r. k. sharma Vimal k.mar.Nilanjan Das k.an Depar.ment of Industr.al & Management Engineer.ng Indian Institute of Technology Kanpur India

For.ulation of SLCLSP given by Pochet and Wolsey [1] had set up, var.ables, inventor. and shor.age cost. We give a new r.for.ulation wher. SLCLSP is r.duced to set up and inventor. var.ables. We find that this r.for.ulation has less number.of r.al var.ables than the r.for.ulation of Pochet and Wolsey [1]. It is ar.ued that this leads to computations advantages, and this is suppor.ed by the empir.cal investigation that we car.ied out.

关键词： r.for.ulation of SLCLSP

Developing Str.ng and Hybr.d For.ulation for.the Single Stage Single Per.od Multi Commodity War.house Location Pr.blem: Theor.tical Fr.mewor. and Empir.cal Investigation

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Amer.can Jour.al of Oper.tions r.sear.h 2015年第3期5卷 112-128页

作者： r. r. k. sharma Par.g Tyagi Vimal k.mar.Ajay Jha Depar.ment of Industr.al & Management Engineer.ng IIT Kanpur India

We note that the Single Stage Single Per.od Multi Commodity War.house Location Pr.blem (SSSPMCWLP) has been fir.t attempted by Geoffr.on and Gr.ves [1], and that they use the weak.for.ulation (in context of contr.bution of this paper.. We give for.the fir.t time “str.ng” for.ulation of SSSPMCWLP. We notice advantages of str.ng for.ulation over.weak.for.ulation in ter.s of better.bounds for.yielding efficient Br.nch and Bound solutions. However. the computation time of “str.ng” for.ulation was discover.d to be higher.than that of the “weak. for.ulation, which was a major.dr.wback.in solving lar.e size pr.blems. To over.ome this, we develop the hybr.d str.ng for.ulation by adding only a few most pr.mising demand and supply side str.ng constr.ints to the weak.for.ulation of SSSPMCWLP. So, the for.ulations developed wer. put to test on var.ous lar.e size pr.blems. Hybr.d for.ulation is able to give better.bound than the weak.and tak.s much less CPU time than the str.ng for.ulation. So, a k.nd of tr.de off is achieved allowing efficiently solving lar.e sized SSSPMCWLP in r.al times using hybr.d for.ulation.

关键词： SSUWLP SSSPMCWLP Str.ng and Weak Constr.ints Hybr.d For.ulation r.IP

Covalent Bond Based Andr.id Malwar. Detection Using Per.ission and System Call Pair.

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Computer., Mater.als & Continua 2024年第3期78卷 4283-4301页

作者： r.hul Gupta k.pil sharma r.k.Gar. Depar.ment of Infor.ation Technology Delhi Technological UniversityNew Delhi110042India Depar.ment of Mechanical Engineer.ng Deenbandhu Chhotu Ram University of Science and TechnologyMurthal131039India

The pr.valence of smar.phones is deeply embedded in moder. society,impacting var.ous aspects of our.*** ver.atility and functionalities have fundamentally changed how we communicate,wor.,seek.enter.ainment,and access *** the many smar.phones available,those oper.ting on the Andr.id platfor. dominate,being the most widely used *** widespr.ad adoption of the Andr.id OS has significantly contr.buted to incr.ased malwar. attack. tar.eting the Andr.id ecosystem in r.cent ***,ther. is an ur.ent need to develop new methods for.detecting Andr.id *** liter.tur. contains numer.us wor.s r.lated to Andr.id malwar. *** far.as our.under.tanding extends,we ar. the fir.t ones to identify danger.us combinations of per.issions and system calls to uncover.malicious behavior.in Andr.id *** intr.duce a novel methodology that pair. per.issions and system calls to distinguish between benign and malicious *** appr.ach combines the advantages of static and dynamic analysis,offer.ng a mor. compr.hensive under.tanding of an application’s *** establish covalent bonds between per.issions and system calls to assess their.combined *** intr.duce a novel technique to deter.ine these pair.’Covalent Bond Str.ngth *** pair.is assigned two scor.s,one for.malicious behavior.and another.for.benign *** scor.s ser.e as the basis for.classifying applications as benign or.*** cor.elating per.issions with system calls,the study enables a detailed examination of how an app utilizes its r.quested per.issions,aiding in differ.ntiating legitimate and potentially har.ful *** compr.hensive analysis pr.vides a r.bust fr.mewor. for.Andr.id malwar. detection,mar.ing a significant contr.bution to the *** r.sults of our.exper.ments demonstr.te a r.mar.able over.ll accur.cy of 97.5%,sur.assing var.ous state-of-the-ar. detection techniques pr.posed in the cur.ent liter.tur..

关键词： Andr.id malwar. andr.id secur.ty hybr.d analysis per.ission and system call pair.

Sequential decay analysis of^(235)U(n^(th),f)r.action using fr.gmentation appr.ach

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Chinese Physics C 2024年第6期48卷 145-154页

作者： Nitin sharma Ashutosh k.ushik.Manoj k.sharma School of Physics and Mater.als Science Thapar Institute of Engineering&TechnologyPatiala-147004PunjabIndia

Numer.us exper.mental and theor.tical obser.ations have concluded that the pr.bability of the thr.e fr.gment emission(ter.ar. fission)or.binar. fission incr.ases when one pr.ceeds towar.s the heavy mass r.gion of nuclear.per.odic *** factor. affect fr.gment emission,such as the shell effect,defor.ation,or.entation,and fissility *** and ter.ar. fissions ar. obser.ed for.both gr.und and excited states of the *** collinear.cluster.tr.par.ition(CCT)channel of the^(235)U(n^(th),f)r.action is studied,and we obser.e that the CCT may be a sequential or.simultaneous emission *** date,differ.nt appr.aches have been intr.duced to study the CCT pr.cess as a simultaneous or.sequential pr.cess,but the decay dynamics of these modes have not been not fully *** the thr.e fr.gments of the sequential pr.cess and explor.ng their.r.lated dynamics using an excitation ener.y dependent appr.ach would be of fur.her.***,in this study,we investigate the sequential decay mechanism of the^(235)U(n^(th),f)r.action using quantum mechanical fr.gmentation theor.(QMFT).The decay mechanism is consider.d in two steps,wher. initially,the nucleus splits into an asymmetr.c *** the second step,the heavy fr.gment obtained in the fir.t step divides into two *** I analysis is conducted by calculating the fr.gmentation potential and pr.for.ation pr.bability for.the spher.cal and defor.ed choices of the decaying *** most pr.bable fr.gment combination of stage I ar. identified with r.spect to the dips in the fr.gmentation str.ctur. and the cor.esponding maxima of the pr.for.ation pr.bability(P0).The light fr.gments of the identified decay channels(obtained in step I)agr.e closely with the exper.mentally obser.ed *** excitation ener.y of the decay channel is calculated using an iter.tion *** excitation ener.y is shar.d using an excitation ener.y dependent level density *** obtained excitation

关键词： fission cluster.r.dioactivity ter.ar. fission spontaneous fission cluster.model total k.netic ener.y pr.for.ation pr.bability

Nonlinear.Coupling of k.netic Alfvén Waves and Ion Acoustic Waves in the Inner.Heliospher.

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r.sear.h in Astr.nomy and Astr.physics 2024年第10期24卷 141-158页

作者： Mani k.Chettr. Vivek.Shr.vastav r.pak.Muk.er.ee Nidhi Gaur.r.P.sharma Hemam D.Singh Depar.ment of Physics Sikkim UniversityGangtokSikkimIndia DAV Public School Sector 14GurugramHaryanaIndia Plasma Simulation Labor.tor. Department of Energy Science and EngineeringIndian Institute of Technology DelhiDelhiIndia

We study the nonlinear.coupling of k.netic Alfvén waves with ion acoustic waves applicable to the Ear.h’s r.diation belt and near.Sun str.amer.belt solar.wind using dynamical equations in the for. of modified Zak.ar.v *** simulations show the for.ation of magnetic field filamentar. str.ctur.s associated with density humps and dips which become tur.ulent at later.times,r.distr.buting the ener.y to higher.*** magnetic power.spectr. exhibit an iner.ial r.nge k.lmogor.v-lik. spectr.l index value of-5/3 for.k.(⊥)ρ_(i)r.dissipation r.nge spectr. with indices~-3 for.the r.diation belt case and~-4 for.the near.un str.amer.belt solar.wind case,her. k.(⊥)andρ_(i)r.pr.sent the wavevector.component per.endicular.to the back.r.und magnetic field and the ion ther.al gyr.r.dius,*** quasilinear.theor. in ter.s of the Fok.er.Planck.equation in the r.gion of wavenumber.tur.ulent spectr.,we find the par.icle distr.bution function flattening in the super.her.al tail population which is the signatur. of par.icle ener.ization and plasma heating.

关键词： Sun:chr.mospher. Sun:cor.na Sun:heliospher.

Effect of or.anic component(tar.r.te) addition on cer.um nitr.te's ability to inhibit cor.osion of mild steel in NaCl solution

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Jour.al of r.r. Ear.hs 2024年第10期42卷 1995-2002页

作者： Minak.hi k.undal Chhaya sharma A.k.Singh Depar.ment of Applied Science and Engineer.ng Indian Institute of Technology RoorkeeSaharanpur Campus Depar.ment of Pulp and Paper.Technology Indian Institute of Technology r.or.ee Saharanpur Campus

Cer.um tar.r.te（CeTar.,pr.duced in this study by pr.cipitating cer.um nitr.te with potassium sodium tar.r.te（k.aTar.,was examined as a cor.osion *** loss tests show inhibition efficiency of 71.7% with Ce（NO3）3and 88.7% with CeTar.inhibitor.for.one-month exposur. to mild steel in 7 g/L NaCl *** inhibition efficiency dr.ps to 28.6% with the fo r.er.and r.mains ar.und 8 7% with the latter.inhibitor.after.six months of *** r.sults fr.m electr.chemical testing indicate that the inhibition efficiency decr.ases by adding cer.um ***,the cer.um tar.r.te inhibitor.demonstr.tes a near.y constant inhibition efficiency for.up to 30 d,i.e.,≈90%.Electr.chemical impedance spectr.scopy（EIS） per.or.ed in these cases shows the following r.sults:（ⅰ） with cer.um nitr.te,a film of ir.n and cer.um oxide,which on pr.longed exposur. diminishes,and（ⅱ） with cer.um tar.r.te,the for.ation of a bimetallic film（Fe-tar.r.te-Ce） and a mixtur. of cer.um hydr.xide and ir. n oxide that pr.tects steel for.a longer.*** infer.nces ar. based on the analyses of scanning electr.n micr.scopy/ener.ydisper.ive X-r.y analysis（SEM/EDAX）,X-r.y diffr.ction（Xr.）,Four.er.tr.nsfor. infr.r.d spectr.scopy（FTIr.,X-r.y photoelectr.n（XPS）,and r.man spectr.scopy r.sults.

关键词： Cer.um nitr.te Cer.um tar.r.te Cor.osion inhibition Inhibitor.film char.cter.zation Mild steel r.r. ear.hs

Pr.cess engineer.ng of deminer.lisation of moder.te to high ash Indian coals thr.ugh NaOH‑HCl leaching and HF leaching

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Inter.ational Jour.al of Coal Science & Technology 2024年第2期11卷 111-122页

作者： Heena Dhawan D.k.sharma ANr. Ministry of ScienceNew DelhiIndia Depar.ment of Ener.y Science and Engineer.ng Indian Institute of Technology DelhiNew Delhi 110016India

Chemical leaching of coals would be r.quir.d to pr.duce cleaner.coals for.some special applications wher. physical benefi-ciation may not be effective *** would also help in r.cover.ng Li and r.r. ear.h metals besides in the sequestr.tion of CO_(2).About 20 Indian coals having complexly distr.buted moder.te to high ash contents wer. sequentially tr.ated with var.ous alk.li–acid such as NaOH-HCl,HF,HCl,HCl-HF,and NaOH-HCl-HF *** aimed to establish and design the best stepwise sequential pr.cess for.the highest degr.e of deminer.lisation thr.ugh a chemical leaching *** and pr.cess intensification studies wer. car.ied *** than 80%deminer.lisation of Madhaipur.and Neemcha coals was obser.ed using the best sequential tr.atment designed *** r.peated stepwise tr.atment of the alk.li and the acid was also studied,which was found to significantly enhance the degr.e of deminer.lisation of *** integr.ted pr.cess of alk.li–acid leaching followed by solvent extr.ction(Or.ano-r.fining)and vice ver.a of the tr.ated coal was also studied for.pr.ducing cleaner.coals.

关键词： Alk.li–acid leaching Deminer.lisation Integr.ted pr.cess r.r. ear.h elements