检索结果-南通市图书馆

Ther.ally Activated Photoconduction and Alter.ating-Cur.ent Conduction in Se75Ge20Ag5 Chalcogenide Glass： Investigation of Meyer.Neldel r.le

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letter. 2008年第11期25卷 4079-4082页

作者： r. S. sharma N. Mehta A. Kumar Depar.ment of Physics Harcourt Butler Technological Institute Kanpur India Depar.ment of Physics Banaras Hindu University Varanasi India

We r.por. on the obser.ation of Meyer.Neldel r.le in glassy Se75Ge20Ag5 alloy wher. AE is var.ed by two differ.nt methods. In the fir.t appr.ach, the intensity of light var.es while measur.ng the photoconductivity in amor.hous thin films of Se75Ge20Ag5 instead of changing composition of the glassy system. In the second appr.ach, the var.ation of ac conductivity with temper.tur. is found to be exponential and the activation ener.y is found to var. with fr.quency.

关键词： THIN films METALLIC glasses PHOTOCONDUCTIVITY CHALCOGENIDES AMOr.HOUS substances

Vir.l r.gulation of r.A Gr.nules in Infected Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Vir.logica Sinica 2019年第2期34卷 175-191页

作者： Qiang Zhang Nishi r. sharma Zhi-Ming Zheng Mingzhou Chen State Key Labor.tor. of Vir.logy and Moder. Vir.logy r.sear.h Center College of Life Sciences Wuhan UniversityWuhan 430072 China Tumor.Vir.s r.A Biology Section RNA Biology Laboratory National Cancer Institute National Institutes of Health Frederick MD 21702 USA

r.A gr.nules ar. cytoplasmic, micr.scopically visible, non-membr.ne r.bo-nucleopr.tein str.ctur.s and ar. impor.ant posttr.nscr.ptional r.gulator. in gene expr.ssion by contr.lling r.A tr.nslation and stability. TIA/G3BP/PABP-specific str.ss gr.nules(SG) and GW182/DCP-specific r.A pr.cessing bodies(PB) ar. two major.distinguishable r.A gr.nules in somatic cells and contain var.ous r.bosomal subunits, tr.nslation factor., scaffold pr.teins, r.A-binding pr.teins, r.A decay enzymes and helicases to exclude m r.As fr.m the cellular.active tr.nslational pool. Although SG for.ation is inducible due to cellular.str.ss, PB exist physiologically in ever. cell. Both r.A gr.nules ar. impor.ant components of the host antivir.l defense. Vir.s infection imposes str.ss on host cells and thus induces SG for.ation. However. both r.A and DNA vir.ses must confr.nt the hostile envir.nment of host innate immunity and apply var.ous str.tegies to block the for.ation of SG and PB for.their.effective infection and multiplication. This r.view summar.zes the cur.ent r.sear.h development in the field and the mechanisms of how individual vir.ses suppr.ss the for.ation of host SG and PB for.vir.s pr.duction.

关键词： Str.ss gr.nules (SG) P-bodies (PB) r.A vir.s - DNA vir.s

Sper. DNA damage and its clinical r.levance in assessingr.pr.ductive outcome

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Jour.al of Andr.logy 2004年第2期6卷 139-148页

作者： r. K. sharma T. Said A. Agar.al Center.or.Advanced r.sear.h in Human r.pr.duction Infer.ility and Sexual Function Glickman Urological Institute The Cleveland Clinic Foundation Cleveland Ohio 44195 USA

The r.utine examination of semen, which assesses sper. concentr.tion, per.entage motility and mor.hology, does not identify subtle defects in sper. chr.matin ar.hitectur.. The focus on the genomic integr.ty of the male gamete has intensified r.cently due to the gr.wing concer. that genetic diseases may be tr.nsmitted via assisted r.pr.ductive techniques (Ar.). Accor.ingly, the intent of this r.view is to descr.be the details of the infor.ation per.aining to mitochondr.al/nuclear.sper. DNA damage with an emphasis on its clinical significance and its r.lation ship with male infer.ility. Assessment of sper. DNA damage appear. to be a potential tool for.evaluating semen samples pr.or.to their.use in Ar.. Testing DNA integr.ty may help select sper.atozoa with intact DNA or.with the least amount of DNA damage for.use in assisted conception. In tur., this may alleviate the financial, social and emotional pr.blems associated with failed Ar. attempts.

关键词： DNA damage human male infer.ility sper.

Obtaining Optimal Solution by Using Ver. Good Non-Basic Feasible Solution of the Tr.nspor.ation and Linear.Pr.gr.mming Pr.blem

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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 Kar.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 Kar.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)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

作者： Pr.yanka 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.ken 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 known 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

A Study for.Analyzing the Effect of Over.apping Stenosis and Dilatation on Non-Newtonian Blood Flow in an Inclined Ar.er.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Jour.al of Biomedical Science and Engineer.ng 2016年第12期9卷 576-596页

作者： Mukesh Kumar.sharma Vinay Nasha P. r. sharma Depar.ment of Mathematics Guru Jambheshwar University of Science & Technology Hisar India Depar.ment of Mathematics University of Rajasthan Jaipur India

The stenosis in the ar.er., which r.duces the flow passage to blood, is a common car.iovascular.disease that is r.sponsible even for.car.iac ar.est sometimes. The hemodynaics r.veals that the sever. blockage in an ar.er. due to stenosis gener.tes pr.ssur. tangential str.ss that impacts adver.ely on the ar.er.al wall downstr.am to stenosis and weakens the ar.er.al wall. The site of weakened wall in the ar.er. gener.tes post stenotic dilatation. The objective of this paper.is to study flow of blood, of non-Newtonian in natur. descr.bed by Her.chel-Bulkley model, in a diseased ar.er. suffer.ng with par.ly over.apped two stenoses and a dilatation distal to the stenoses. A mathematical model, descr.bing the blood flow, has been der.ved using Navier.Stokes equations along with the pr.scr.bed geometr. of the diseased ar.er.. The expr.ssions of velocity pr.file, r.sistive impedance to flow and wall shear.str.ss (skin-fr.ction) ar. der.ved. The effect of inclination of the vessel on the r.sistive impedance to flow is discussed along with the effect of r.eological and geometr.cal par.meter. on the r.sistive impedance to flow and skin fr.ction.

关键词： Stenotic Ar.er. Over.apped Stenoses Dilatation Her.chel-Bulkley Blood Yield Str.ss r.sistive Impedance

Syner.istic Influence of Pr.-Har.est Calcium Spr.ys and Posthar.est Hot Water.Tr.atment on Fr.it Fir.ness, Decay, Bitter.Pit Incidence and Posthar.est Quality of r.yal Delicious Apples (<i>Malus x domestica</i>Bor.h)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Amer.can Jour.al of Plant Sciences 2013年第1期4卷 153-159页

作者： r. r. sharma D. Singh r. K. Pal Division of Plant Pathology Indian Agricultural Research Institute New Delhi India Division of Post Har.est Technology Indian Agricultural Research Institute New Delhi India

Exper.ments wer. conducted to obser.e the effect of pr.-har.est calcium (Ca) applied as calcium chlor.de (1% W/V) and posthar.est hot water.tr.atment (HWT) on “r.yal Delicious” apples. For.this, apples wer. divided in 4 lots viz., untr.ated (neither.Ca nor.HWT), Ca alone (pr.-har.est 3 spr.ys of CaCl2 (1.0% w/v) in the or.har.), HWT (42℃ for.2 h). Apples of all four.lots wer. stor.d in cold stor.ge maintained at 0℃ ± 1℃ and 90% - 95% r.lative humidity for.6 months. After.stor.ge, fr.its wer. r.moved to ambient conditions for.5 days, and then obser.ations on decay ar.a and incidence, bitter.pit incidence, fr.it Ca content, lipoxygenase (LOX) and antioxidant (AOX) activity, fr.it fir.ness and fr.it quality par.meter. wer. r.cor.ed. After.6 months in cold stor.ge plus 5 day at 22℃ ± 2℃ and 70% + 4% r., apples, which r.ceived Ca as pr.-har.est spr.y or.those which r.ceived posthar.est hot water.tr.atment or.Ca + HWT had significantly lesser.decay ar.a (decay lesions) caused by Penicillium expansum or.Botr.tis ciner.a than untr.ated ones (contr.l). Ca + HWT tr.atment was significantly mor. effective on B. ciner.a than P. expansum. Untr.ated apples exhibited higher.incidence of bitter.pit (18.2%) than those tr.ated with Ca or.HWT or.both. Fr.it Ca content (2.92% DM) wer. significantly lower.and conver.ely the LOX activity (6.9 μmoles min–1×g–1FW) was higher.in untr.ated apples. Similar.y, total phenolics and AOX activity wer. also lower.in the untr.ated apples than Ca or.HWT tr.ated. HWT or.Ca tr.ated apples have beneficial effects on fr.it fir.ness, peel colour.and quality par.meter. like TSS and ascor.ic acid content. Thus, it is concluded that pr.-har.est spr.ys of calcium chlor.de with posthar.est HWT is highly useful for.“r.yal Delicious” for.r.ducing decay loss, maintaining fir.ness, high levels of antioxidants and fr.it quality.

关键词： Hot Water Tr.atment Lipoxygenase Activity Antioxidant Activity Bitter Pit Fr.it Quality

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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 Kumar.Nilanjan Das Khan 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