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Op.imization of Wear.Factor. of Aluminium Hybr.d Metal Matr.x Comp.sites Using Taguchi Method

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Jour.al of Miner.ls and Mater.als Char.cter.zation and Engineer.ng 2021年第1期9卷 38-47页

作者： p. B. Asha Sneha Sar.ka Mur.hy C. r. p.akash rao V. r.vi Kumar.r. Kir.n C. N. Sur.sha Dep.r.ment of Mechanical Engineer.ng Global Academy of Technology Bengaluru India Dep.r.ment of Mechanical Engineer.ng Amruta Institute of Engineering & Management Sciences Bengaluru India

Hybr.d metal matr.x comp.sites (Hmmc) ar. found to be mor. sup.r.or.than the conventional comp.site mater.als because of their.imp.oved mechanical p.op.r.ies, which can be suited for.an extensive r.nge of engineer.ng ap.lications. Automobile and aer.sp.ce industr.es widely make use of hybr.d comp.sites as they p.ssess excellent cor.osion, wear.r.sistance, low density, and high str.ngth. This p.p.r.disp.ays the str.tegy to build the hybr.d comp.site utilizing Stir.casting Method. p.esent investigation includes the cr.ation of comp.sites utilizing bor.n car.ide (2%, 4%, 6% volume) and r.d mud (2% volume) as the r.infor.ements and Str.ctur.l aluminium as the matr.x. Exp.r.mental investigation of wear.analysis of the comp.sites was car.ied out accor.ing to the L9 Taguchi method. The designated number.of exp.r.ments was accomp.ished to p.obe the imp.ct of contr.l factor. on the sp.cific wear.r.te (SWr. of the develop.d comp.sites. ANOVA was car.ied out and Wt%. r.infor.ement was found to be the decisive factor.on the SWr.of the develop.d hybr.d comp.site. The Confir.ator. test was successfully car.ied out and the comp.ted er.or.was found to be var.ing fr.m 0.878% to 2.58%.

关键词： Taguchi ANNOVA Wear Signal-to-Noise r.tio Hybr.d Metal Matr.x Comp.site

p.imar. imp.antation of non-valved glaucoma-dr.inage-device in sulcus in ir.docor.eal endothelial syndr.me

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Inter.ational Jour.al of Op.thalmology(English edition) 2019年第11期12卷 1809-1811页

作者： Vanita p.thak r.y Divya p.rao Isha Gulati Centr. For.Sight Banjara HillsHyderabad 500034India L V p.asad Eye Institute Banjara HillsHyderabad 500034India

Dear.Editor.I r.docor.eal endothelial syndr.me(ICE)is a r.r.,usually unilater.l,acquir.d condition,hyp.thesized to be secondar. to a vir.l etiology[1].It affects females mor. often than males and comp.ises of thr.e distinct clinical typ.s r.lated to endothelial p.olifer.tion and its str.ctur.l *** of endothelium over.the ir.docor.eal angle leads to p.ogr.ssive secondar. angle closur. and that over.the ir.s leads to typ.cal changes of p.lycor.a and *** clinical entities included in the syndr.me ar. Chandler.(p.edominant cor.eal involvement),p.ogr.ssive ir.s atr.p.y(p.edominant ir.s involvement with p.lycor.a and‘holes’)and Cogan r.ese(ir.s nodules with loss of str.mal featur.s).No matter.what the clinical typ.,it is a p.ogr.ssive condition and contr.lling intraocular.p.essur.(IOp.and maintaining cor.eal clar.ty in the long ter. is usually a challenge.

关键词： cor.eal involvement p.edominant

Micr.str.ctur. and cor.osion behavior.of Mg-Sn-Ca alloys after.extr.sion

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中国有色金属学会会刊：英文版 2009年第1期19卷 40-44页

作者： T. ABU LEIL N. HOr. W. DIETZEL C. BLAW Er. Y. HUANG K. U. KAINEr.K. p. rao GKSS For.chungszentr.m Geesthacht GmbH Max-p.anck Str.sse 1 Geesthacht 21502 Germany City Univer.ity of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong

Mg-Sn-Ca alloys p.omise a r.asonable cor.osion r.sistance in combination with good cr.ep.r.sistance, likely due to the p.esence of Ca2-xMgxSn and other.p.ases. The selected alloys with 3% Sn and Ca in the r.nge of 1%-2% have been extr.ded in or.er.to achieve mor. homogeneous micr.str.ctur. comp.r.d with the as-cast alloys. Op.ical micr.scop.(OM) and X-r.y diffr.ction(Xr.) techniques wer. used to study the micr.str.ctur. and p.ases of these alloys. The cor.osion behavior.of these alloys was investigated by means of salt sp.ay test and p.tentio-dynamic measur.ments. The r.sults obtained on the alloys Mg-3Sn (T3), Mg-3Sn-1Ca (TX31), and Mg-3Sn-2Ca (TX32) indicate the p.esence of the same p.ases in as-cast and after.extr.sion, namely Mg2Sn, Ca2-xMgxSn, and Ca2-xMgxSn/Mg2Ca, r.sp.ctively. However. due to the occur.ence of extensive r.cr.stallization in the extr.sion p.ocess, the gr.in size has significantly r.duced after.extr.sion. The r.duction leads to the imp.ovement of the cor.osion r.sistance after.extr.sion which is then comp.r.ble with the commer.ial alloy AZ91D.

关键词： Mg-Sn-Ca合金腐蚀镁合金金属腐蚀

Hot for.ing of Mg-4Al-2Ba-2Ca(ABa X422) alloy and validation of p.ocessing map

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Tr.nsactions of Nonfer.ous Metals Society of China 2018年第8期28卷 1495-1503页

作者： K.SUr.SH K.p.rao Y.V.r.K.p.ASAD N.HOr. H.DIEr.NGA Dep.r.ment of mechanical and Biomedical Engineer.ng City Uiliversity of Hong Kong Tat Chee Avenue Kowloon Hoilg Koilg China *** No. 2/B vinayaka Nagar Hebbal Bengalum 560024 India Helmholtz-zentr.m Geesthacht institute of Materials ResearchMagnesium innovation Centre Max-Planck-StraBe 1 Geesthacht 21502 Germany

A cup.shap.d comp.nent of Mg-4 Al-2 Ba-2 Ca（ABa X422） alloy was for.ed in the temp.r.tur. r.nge of 300-500 °C and at sp.eds in the r.nge of 0.01-10 mm/s with a view to validate the p.ocessing map.and study the micr.str.ctur.l develop.ent. The p.ocess was simulated thr.ugh finite-element method to estimate the local and aver.ge str.in r.te r.nges in the for.ing envelop.. The p.ocessing map.exhibited two domains in the following r.nges：（1） 300-390 °C and 0.0003-0.001 s^-1, and（2） 400-500 °C and 0.0003-0.3 s^-1 and both r.p.esented dynamic r.cr.stallization（Dr.）. The map.r.vealed a wide flow instability r.gime at higher.str.in r.tes and temp.r.tur.s lower.than 400 °C, in which flow localization occur.ed. For.ings p.oduced under.conditions of the above two domains wer. sound and symmetr.cal, and had finer.gr.in sizes when being for.ed in the fir.t domain. However. when being for.ed in the flow instability r.gimes, the alloy fr.ctur.d befor. the final shap. was r.ached. The exp.r.mental load-str.ke cur.es for.the conditions within the domains cor.elated well with the simulated ones, wher.as the cur.es obtained in the instability r.gime wer. uneven.

关键词： magnesium alloy, p.ocessing map hot for.ing dynamic r.cr.stallization

Ap.lication of AHp.EVAMIX Method for.Decision Making in the Industr.al Envir.nment

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Amer.can Jour.al of Op.r.tions r.sear.h 2013年第6期3卷 542-569页

作者： Veer. p. Dar.i r.vip.di V. rao Dep.r.ment of Mechanical Engineer.ng S.V. National Institute of Technology Surat India

Selection of best alter.ative among multip.e alter.atives is a tough task for.decision maker. in many industr.al situations. This p.p.r.exp.or.s the ap.licability and cap.bility of an outr.nking method known as Evaluation of Mixed Data (EVAMIX) method combined with Analytical Hier.r.hy p.ocess (AHp. for.selection of r.ght alter.ative. The novelty of the p.op.sed methodology is its cap.bility of dealing with both or.inal and car.inal infor.ation. The integr.ted ap.r.ach is a significant tool of the decision making p.ocess in industr.al envir.nments. Five examp.es ar. illustr.ted to show the effectiveness of method.

关键词： Industr.al Envir.nment Decision Making AHp EVAMIX

Hep.top.otective p.tential of ethanolic extr.ct of Zizip.us oenop.ia(L.)Mill r.ots against antituber.ular.dr.gs induced hep.totoxicity in exp.r.mental models

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Asian p.cific Jour.al of Tr.p.cal Medicine 2012年第4期5卷 283-288页

作者： Ch V rao AKS r.wat Anil p.Singh Ar.1}ta Singh Neer.j Ver.a p.ar.acognosy and Ethnop.ar.acology Division National Botanical Research Institute(Council of Scientific and Industrial Research)Rana Pratap MargP.O.Box No.436Lucknow 226001Uttar PradeshIndia Dep.r.ment of p.ar.acology Goel Institute of Pharmacy & SciencesFaizabad Road(Near Indira Canal) Lucknow 227105Uttar PradeshIndia

Objective:To evaluate the hep.top.otective p.tential of ethanolic(50%) extr.ct of Zizip.us oenop.ia(L.) Mill(***) r.ot against isoniazid(INH) and r.famp.cin(r.F) induced liver.damage in animal ***:Five gr.up. of six r.ts each wer. selected for.the *** extr.ct at a dose of 150 and 300 mg/kg as well as silymar.n(100 mg/kg) wer. administer.d or.lly once daily for.21 d in INH + r.F tr.ated *** ser.m levels of glutamic oxaloacetic tr.nsaminase(SGOT),glutamate p.r.vate tr.nsaminase(SGp.),alkaline p.osp.atase (SALp.,and bilir.bin wer. estimated along with activities of sup.r.xide dismutase,catalase, glutathione S-tr.nsfer.se,glutathione p.r.xidase,and hep.tic melondialdehyde for.ation. Histop.thological analysis was car.ied out to assess injur. to the ***:The consider.bly elevated ser.m enzymatic activities of glutamic oxaloacetic tr.nsaminase,glutamate p.r.vate tr.nsaminase,alkaline p.osp.atase and bilir.bin due to INH + r.F tr.atment wer. r.stor.d towar.s nor.a) in a dose dep.ndent manner.after.the tr.atment with ethanolic extr.ct of *** ***,the decr.ased activities of sup.r.xide dismutase,catalase, glutathione S-tr.nsfer.se and glutathione p.r.xidase wer. also r.stor.d towar.s nor.al dose *** addition,ethanolic extr.ct also significantly p.evented the elevation of hep.tic melondialdehyde for.ation in the liver.of INH + r.F intoxicated r.ts in a dose dep.ndent manner. The biochemical obser.ations wer. sup.lemented with histop.thological examination of r.t liver.***:The r.sults of this study slr.ngly indicate that ethanolic extr.ct of *** has a p.tent hep.top.otective action against INH + r.F induced hep.tic damage in r.ts.

关键词： Zizip.us oenop.ia(r.amnaceae) r.famp.cin Isoniazid Hep.totoxicity

Identification of slot dischar.es in r.tating machine insulation system using var.able fr.quency p. measur.ment

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High Voltage 2018年第3期3卷 179-186页

作者： r.mesh p.Nair.Sumangala B.Vishwanath Nageshwar.B.rao Cables and Diagnostics Division Central Power Research InstituteBengaluruIndia Dr.Ambedkar.Institute of Technology BengaluruIndia

Slot dischar.e studies ar. ver. imp.r.ant fr.m the insulation diagnosis *** in p.actice,testing of r.tating machines with p.wer.fr.quency r.quir.s sour.es which ar. quite bulky and *** if the diagnosis is car.ied out at lower.fr.quencies(r.e can be r.duced ***,it is imp.r.ant to know whether.the study at low fr.quencies can be consider.d equivalent to study at p.wer.***,in this study,a slot dischar.e p.enomenon occur.ing in a r.tating machine insulation system was investigated exp.r.mentally at differ.nt fr.quencies(50,10,1 and 0.1 Hz).Slot dischar.es ar. known to have a distinct p.ase r.solved p.r.ial dischar.e p.tter. for.p.wer.fr.quency(50/60 Hz)*** distinct p.tter.s ar. useful in identifying the p.esence of slot dischar.e activity in r.tating *** dischar.es wer. cr.ated on a 6.6 kV mica-ep.xy stator.coil and the slot dischar.e char.cter.stics measur.d at differ.nt fr.quencies ar. *** dischar.e measur.ments wer. r.p.ated by var.ing the air.gap.between the insulation sur.ace and gr.unded steel *** changes in slot dischar.e char.cter.stics due to the incr.ase in air.gap.wer. found similar.at all *** comp.r.son suggests that the identification of slot dischar.e is also p.ssible fr.m the p.r.ial dischar.e(p.)measur.ment at low fr.quencies.

关键词： steel r.tating insulation

Event-dr.ven flood management:design and comp.tational modules

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Geo-Sp.tial Infor.ation Science 2016年第1期19卷 39-55页

作者： Vinod Kumar.Shar.a G.Sr.nivasa rao E.Amminedu p.V.Nagamani Abhinav Shukla K.r.m Mohan rao V.Bhanumur.hy National r.mote Sensing Centr. ISRO HyderabadHyderabadTelanganaIndia Dep.r.ment of Geo-Engineer.ng Andhra UniversityVisakhapatnamAndhra PradeshIndia

Flood management is a set of activities that have to be car.ied out in collabor.tion with multip.e *** flood infor.ation with ear.y war.ing gener.ted using r.mote sensing satellite technologies can help.the agencies to effectively manage the situation on *** envir.nmental p.r.meter. and for.casts p.ovided by differ.nt agencies can be analyzed and comp.r.d with histor.cal flood events for.gener.ting p.obable flood event *** infor.ation(envir.nmental p.r.meter.)p.ovided by the agencies ar. heter.geneous and noncomp.iant to standar.s and distr.buted in *** of data fr.m distr.buted r.sour.es and automation of data analysis p.ocess for.flood management is a p.imar. p.er.quisite for.faster.and efficient *** 2.0-based web ser.ices enable data cr.ation,shar.ng,communication,and collabor.tion on *** data shar.ng on web 2.0 for.making quality of ser.ice using op.n-sour.e softwar. for.efficient flood management is a *** softwar. ar.hitectur.s p.op.sed for.r.sk and envir.nmental cr.sis management ar. too gener.c in natur. and needs lot of modification for.flood *** event-dr.ven model coup.ed with data standar.ization p.ocedur.s using ser.ice-or.ented ar.hitectur. p.ovides an effective fr.mewor. for.flood *** this p.p.r.a fr.mewor. cap.ble of collecting heter.geneous distr.buted flood-r.lated infor.ation for.analyzing and aler.ing p.obable flood events is *** fr.mewor. has been imp.emented to gener.te automatic flood extent map.,by analyzing the distr.buted satellite data(as ser.ice).The automation of flood delineation p.ocess r.duces the over.ll flood p.oduct gener.tion ***-sour.e web tools have been utilized in develop.ent of sp.tial infor.ation system to visualize and analyze the actual situation on gr.und facilitating over.ll decision-making p.ocess.

关键词： Flood management softwar. ar.hitectur.s ser.ice or.ented ar.hitectur.(SOA) event-based methods automation heter.geneous data

Biological activities and medicinal p.op.r.ies of Gokhr.(p.dalium mur.x L.)

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Asian p.cific Jour.al of Tr.p.cal Biomedicine 2012年第7期2卷 581-585页

作者： V r.jashekar.E Up.nder.rao Sr.nivas p Dep.r.ment of p.ar.aceutical Micr.biology Vikas College of Pharmacy

Bada Gokhr.(p.dalium mur.x L.) is p.r.ap. the most useful tr.ditional medicinal p.ant in *** p.r. of the neem tr.e has some medicinal p.op.r.y and is thus commer.ially *** the last five decades,ap.r. fr.m the chemistr. ol the p.dalium mur.x *** p.ogr.ss has been achieved r.gar.ing the biological activity and medicinal ap.lications of litis *** is now consider.d as a valuable sour.e of unique natur.l p.oducts for.develop.ent of medicines against var.ous diseases and also for.the develop.ent of industr.al *** r.view gives a bir.'s eye view mainlv on the biological activities ol some of this comp.unds *** actions of the *** studies and p.ausible medicinal ap.lications ol gokhar. along with their.safety evaluation.

关键词： p.dalium mur.x p.ar.acological activities Anti-oxidant activities Antimicr.bial activities susp.nding agent