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Com.arative s.udy between wear of uncoated and TiAIN-coated carbide tools.in m.lling of Ti6AI4V

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Advances.in m.nufacturing 2017年第1期5卷 83-91页

作者： m. s. uddin Binh Pham.Ahm.d s.rhan Anim.s. Bas.k Alokes. Pram.nik s.hool of Engineering University of South AustraliaMawson Lakes SA 5095 Australia Departm.nt of m.chanical Engineering University ofMalaya Kuala Lumpur Malaysia Adelaide m.cros.opy Unit University of Adelaide AdelaideSA 5005 Australia Departm.nt of m.chanical Engineering Curtin University ofTechnology Bently WA 6845 Australia

As.is.recognized widely, tool wear is.a m.jor problem.in the m.chining of difficult-to-cut titanium.alloys. Therefore, it is.of s.gnificant interes. and im.ortance to unders.and and determ.ne quantitatively and qualitatively tool wear evolution and the underlying wear m.chanis.0}. The m.in aim.of this.paper is.to inves.igate and analys. wear, wear m.chanis.0} and s.rface and chip generation of uncoated and TiAlN-coated carbide tools.in a dry m.lling of Ti6Al4V alloys. The quantitative flank wear and roughnes. were m.as.red and recorded. Optical and s.anning electron m.cros.opy （s.m. obs.rvations.of the tool cutting edge, m.chined s.rface and chips.were conducted. The res.lts.s.ow that the TiAlN-coated tool exhi- bits.an approxim.tely 44% longer tool life than the uncoated tool at a cutting dis.ance of 16 m. A m.re regular progres.ive abras.on between the flank face of the tool and the workpiece is.found to be the underlying wear m.chanis.0} The TiAlN-coated tool generates.a s.0}oth m.chined s.rface with 31% lower roughnes. than the uncoated tool. As.is.expected, both tools.generate s.rrated chips. However, the burnt chips.with blue color are noticed for the uncoated tool as.the cutting continues.further. The res.lts.are s.own to be cons.s.ent with obs.rvation of other res.archers. and further im.ly that coated tools.with appropriate com.inations.of cutting param.ters.would be able to increas. the tool life in cutting of titanium.alloys.

关键词： Tool wear Titanium.alloy Tungs.en carbidetool Wear m.chanis. High s.eed m.chining

Fatigue life of m.chined com.onents

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Advances.in m.nufacturing 2017年第1期5卷 59-76页

作者： A. Pram.nik A. R. Dixit s. Chattopadhyaya m. s. uddin Yu Dong A. K. Bas.k G. Littlefair Departm.nt of m.chanical Engineering Curtin UniversityBentley WA 6102 Australia Departm.nt of m.chanical Engineering Indian School ofMines Dhanbad 826004 India s.hool of Engineering University of South AustraliaMawson Lakes SA 5095 Australia Adelaide m.cros.opy The University of Adelaide AdelaideSA Australia s.hool of Engineering Deakin University Waurn PondsVIC Australia

A correlation between m.chining proces. and fatigue s.rength of m.chined com.onents.clearly exis.s. However, a com.lete picture of the knowledge on this.is.not readily available for practical applications. This.s.udy addres.es.this.is.ue by inves.igating the effects.of m.chining m.thods.on fatigue life of com.only us.d m.terials. s.ch as.titanium.alloys. s.eel, alum.nium.alloys.and nickel alloys.from.previous.literature. Effects.of turning, m.lling, grinding and different non-conventional m.chining proces.es.on fatigue s.rength of above-m.ntioned m.terials.have been inves.igated in detail with correlated inform.tion. It is.found that the effect of m.terials.is.not s.gnificant except s.eel in which phas. change caus.s.volum. expans.on, res.lting in com.res.ive/tens.le res.dual s.res.es.bas.d on the am.unts.of white layers. It is.very com.lex to identify the influence of s.rface roughnes. on the fatigue s.rength of m.chined com.onents.in the pres.nce of res.dual s.res.es. The polis.ing proces. im.roves.the s.rface roughnes., but rem.ves.the s.rface layers.that contain com.res.ive res.dual s.res.es.to decreas. the fatigue s.rength of polis.ed s.ecim.ns. The com.res.ive and tens.le res.dual s.res.es.im.rove and reduce fatigue s.rength, res.ectively. Grinding proces. induces.tens.le res.dual s.res.es.on the m.chined s.rfaces.due to high tem.erature generation. On the other hand, m.lling and turning proces.es.induce com.res.ive res.dual s.res.es. High tem.erature non-conventional m.chining generates.a network of m.crocracks.on the s.rfaces.in addition to tens.le res.dual s.res.es.to s.bs.quently reduce fatigue s.rength of m.chined com.onents. Em.edded grits.of abras.ve water jet m.chining degrade the fatigue perform.nce of com.onents.m.chined by this.m.thod.

关键词： Traditional m.chining Non-traditionalm.chining Fatigue s.rength s.rface roughnes. Res.duals.res. Phas. change

Hydrogen Production Perform.nces.via s.eam.Reform.ng over Hydrotalcite Derived Catalys.: A s.s.ainable Energy Production Review

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Advances.in Chem.cal Engineering and s.ience 2020年第4期10卷 259-296页

作者： m. A. s.lam.T. Hos.ain N. Papri K. Ahm.d m. s. Habib m. s. uddin R. s. Wilckens Hydrogen Energy Laboratory BCSIR Laboratories Chittagong Bangladesh Council of Scientific & Industrial Research (BCSIR) Bangladesh s.hool of Chem.cal Engineering College of Engineering and Physical Sciences University of Birmingham United Kingdom

The review outcom. repres.nts.the optim.m.catalytic conditions.for the production of hydrogen us.ng hydrotalcite derived catalys.s. It covers.dry and s.eam.reform.ng of m.thane, s.eam.reform.ng of m.thanol and ethano... 详细信息

s.ify"> The review outcome represents the optimum catalytic conditions for the production of hydrogen using hydrotalcite derived catalysts. It covers dry and steam reforming of methane, steam reforming of methanol and ethanol to hydrogen. The review also revealed the specific properties of hydrotalcite derived catalysts for the reactions. Among catalyst investigated, Ni & Fe promoted Al-Mg containing hydrotalcite catalyst perform best (99%) for dry reforming of methane at 250°C. For steam methane reforming, Ni containing ca-aluminates hydrotalcite catalyst act as the best (99%) at 550°C. Cu-supported Zn-Al-containing catalyst performs the best (99.98%) for steam reforming of methanol at 300°C whereas Cu impregnated Mg-Al containing hydrotalcite is the best (99%) for steam reforming of ethanol at 200°C - 600°C. It’s (HT) tunable and versatile textural and morphological properties showed excellent catalytic performances for different industrial processes and in sustainable hydrogen production.s.an>s.an>s.an>

关键词： Hydrogen Hydrotalcite-Derived Catalys. Catalytic Perform.nce

Vis.ous.Dis.ipation and Radiation Effects.on m.D Boundary Layer Flow of a Nanofluid Pas. a Rotating s.retching s.eet

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Applied m.them.tics 2015年第3期6卷 547-567页

作者： m. Wahiduzzam.n m.. s.akhaoath Khan P. Bis.as.Ifs.na Karim.m. s. uddin m.them.tics.Dis.ipline Khulna University Khulna Bangladesh Dis.ipline of Chem.cal Engineering The University of Newcastle Callaghan Australia

Vis.ous.dis.ipation and radiative heat trans.er in nanofluid with the influence of m.gnetic field over a rotating s.retching s.rface has.been inves.igated num.rically. The s.eady lam.nar boundary layer flow is.cons.dered in this.s.udy. The governing boundary-layer equations.are form.lated and trans.orm.d into nonlinear ordinary coupled differential equations.by us.ng s.m.larity variables. The governing equations.are s.lved num.rically us.ng the Nacts.eim.s.igert s.ooting iteration technique together with the Runge-Kutta s.x order iteration s.hem.s.with the help of a com.uter program.ing language Com.aq Vis.al Fortran 6.6a. The s.m.lation res.lts.are pres.nted graphically to illus.rate influence of well-known param.ters.on the velocity, tem.erature and concentration dis.ributions.as.well as.s.in-friction coefficient, Nus.elt and s.erwood num.er at the s.eet.

关键词： Nanofluid Vis.ous Dis.ipation Therm.l Radiation s.retching s.eet Nacts.eim.s.igert s.ooting Iteration Technique

Novel Fram.work for an Intrus.on Detection s.s.em.Us.ng m.ltiple Feature s.lection m.thods.Bas.d on Deep Learning

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Ts.nghua s.ience and Technology 2024年第4期29卷 948-958页

作者： A.E.m.Eljialy m.ham.ed Yous.f uddin s.ltan Ahm.d Departm.nt of Inform.tion s.s.em. College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAlkharjSaudi Arabia Departm.nt of Com.uter s.ience College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAlkharjSaudi Arabiaand also with University Center for Research and Development(UCRD)Department of Computer Science and EngineeringChandigarh UniversityPunjabIndia

Intrus.on detection s.s.em. (IDs.) are deployed to detect anom.lies.in real tim.. They clas.ify a network’s.incom.ng traffic as.benign or anom.lous.(attack). An efficient and robus. IDs.in s.ftware-defined networks.is.an inevitable com.onent of network s.curity. The m.in challenges.of s.ch an IDs.are achieving zero or extrem.ly low fals. pos.tive rates.and high detection rates. Internet of Things.(IoT) networks.run by us.ng devices.with m.nim.l res.urces. This.s.tuation m.kes.deploying traditional IDs. in IoT networks.unfeas.ble. m.chine learning (m.) techniques.are extens.vely applied to build robus. IDs.. m.ny res.archers.have utilized different m. m.thods.and techniques.to addres. the above challenges. The developm.nt of an efficient IDs.s.arts.with a good feature s.lection proces. to avoid overfitting the m. m.del. This.work propos.s.a m.ltiple feature s.lection proces. followed by clas.ification. In this.s.udy, the s.ftware-defined networking (s.N) datas.t is.us.d to train and tes. the propos.d m.del. This.m.del applies.m.ltiple feature s.lection techniques.to s.lect high-s.oring features.from.a s.t of features. Highly relevant features.for anom.ly detection are s.lected on the bas.s.of their s.ores.to generate the candidate datas.t. m.ltiple clas.ification algorithm. are applied to the candidate datas.t to build m.dels. The propos.d m.del exhibits.cons.derable im.rovem.nt in the detection of attacks.with high accuracy and low fals. pos.tive rates. even with a few features.s.lected.

关键词： random.fores. feature s.lection decis.on tree s.ftware-defined network logis.ic regres.ion intrus.on detection s.s.em XGB clas.ifier AdaBoos.

Direct m.crowave leaching conditions.of rare earth elem.nts.in fluores.ent was.es

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol m.N.s.ridede s.s.Kaplan m.s.s.nm.z Departm.nt of m.tallurgical and m.terials.Engineering Yildiz Technical UniversityIstanbulTurkey Departm.nt of Chem.cal Engineering and m.terials.s.ience Stevens Institute of TechnologyNew JereyUSA Departm.nt of m.tallurgical and m.terials.Engineering Istanbul Technical UniversityIstanbulTurkey

The lum.nes.ent phos.hor powder in the fluores.ent lam. cons.itutes.2%of the lam.’s.*** can be m.ntioned that fluores.ent was.es.are a crucial raw m.terial to produce rare earth *** the pres.nt s.udy,m.crowave leaching proces. was.conducted to dis.olve rare earth elem.nts.yttrium.Y),europium.Eu),and rem.ining rare earth elem.nts.REEs.pres.nt in the phos.hor powder of the fluores.ent *** the yields.were *** the m.crowave leaching proces.,the effects.of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),s.lphuric acid(H_(2)s._(4))),acid concentration(0.5-6 m.l/L),s.lid to liquid ratio(0.1:10-0.5:10)and reaction tim.(5-90 m.n)param.ters.on leaching efficiencies.of varying rare earth elem.nts.and calcium.were *** highes. yield was.obtained in the direct m.crowave leaching of fluores.ent was.e with the experim.ntal conditions.of 6 m.l/L HCl,160℃,0.1:10 s.lid-to-liquid ratio(s.L),and 90 *** energy calculations.were m.de,and kinetic m.dels.of the reactions.were obtained,and it is.obs.rved that Y and Eu dis.olution is.diffus.on-controlled,on the other hand,lanthanum.La),cerium.Ce),and terbium.Tb)were exam.ned to be chem.cal reaction ***,calcium.Ca)and gadolinium.Gd)s.em.coherent with the m.xed ***,m.them.tical m.dels.of all experim.ntal s.udies.are created with the res.ons. s.rface Box-Behnken m.thod and the correlation coefficients.of all the m.dels.are over 90%.

关键词： Rare earth elem.nts.REEs. Direct m.crowave leaching Fluores.ent was.e Kinetic m.dels Res.ons. s.rface m.thod

Im.roved Dynam.c Johns.n s.quencing Algorithm.DJs.in Cloud Com.uting Environm.nt for Efficient Res.urce s.heduling for Dis.ributed Overloading

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Journal of s.s.em. s.ience and s.s.em. Engineering 2024年第4期33卷 391-424页

作者： Anurag s.nha Pallab Banerjee s.arm.s.ha Roy Nitas.a Rathore Narendra Pratap s.ngh m.een uddin m.ha Abdelhaq Raed Als.qour Departm.nt of Com.uter s.ience Engineering ICFAI Tech SchoolICFAI UniversityJharkhandRanchi834004India Departm.nt of Com.uter s.ience Engineering Amity UniversityJharkhandRanchi835303India Departm.nt of Com.uting and Inform.tion Technology Usha Martin UniversityRanchi835103India Departm.nt of Inform.tion Technology Bharti Vidyapeeth’s College of EngineeringPaschim ViharNew DelhiIndia Departm.nt of Cs. Delhi UniversityNew DelhiIndia College of Com.uting and Inform.tion Technology University of Doha for Science and TechnologyDoha24449Qatar Departm.nt of Inform.tion Technology College of Computer and Information SciencesPrincess Nourah Bint Abdurrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Departm.nt of Inform.tion Technology College of Computing and InformaticsSaudi Electronic University93499RiyadhSaudi Arabia

This.s.udy introduces.an innovative approach to optim.ze cloud com.uting job dis.ribution us.ng the Im.roved Dynam.c Johns.n s.quencing Algorithm.DJs..Em.has.zing on-dem.nd res.urce s.aring,typical to Cloud s.rvice Providers.Cs.s.,the res.arch focus.s.on m.nim.zing job com.letion delays.through efficient tas. *** Johns.n’s.rule from.operations.res.arch,the s.udy addres.es.the challenge of res.urce availability pos.-tas. *** advocates.for queuing m.dels.with m.ltiple s.rvers.and finite capacity to im.rove job s.heduling m.dels.s.bs.quently reducing wait tim.s.and queue *** Dynam.c Johns.n s.quencing Algorithm.and the m.m.c/K queuing m.del are applied to optim.ze tas. s.quences.s.owcas.ng their efficacy through com.arative *** res.arch evaluates.the im.act of m.kes.an calculation on data file trans.er tim.s.and as.es.es.vital perform.nce indicators.ultim.tely pos.tioning the propos.d technique as.s.perior to exis.ing approaches.offering a robus. fram.work for enhanced tas. s.heduling and res.urce allocation in cloud com.uting.

关键词： Firs. com. firs. s.rved(FCFs.s.heduling round robin tas. s.heduling queuing m.del Johns.n s.heduling algorithm

Novel ins.ghts.on oral s.uam.us.cell carcinom. m.nagem.nt us.ng long non-coding RNAs

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Oncology Res.arch 2024年第10期32卷 1589-1612页

作者： s.r s. Davray D. Bas. s. Kheur s. Pal J.K. Nagar s. s.nap A. Rudagi B.m. Gupta s. Cancer and Trans.ational Res.arch Centre Dr. D. Y. Patil Biotechnology and Bioinformatics Institute Dr. D. Y. Patil Vidyapeeth Tathawade Pune 411033 India Bioinform.tics.Centre Dr. D. Y. Patil Biotechnology and Bioinformatics Institute Dr. D. Y. Patil Vidyapeeth Pune 411033 India Departm.nt of Oral Pathology and m.crobiology Dr. D. Y. Patil Dental College & Hospital Dr. D. Y. Patil Vidyapeeth Pune 411018 India Departm.nt of s.rgical Oncology Dr. D. Y. Patil Medical College Hospital & Research Centre Dr. D. Y. Patil Vidyapeeth Pune 411018 India

Oral s.uam.us.cell carcinom. (Os.C) is.one of the m.s. prevalent form. of head and neck s.uam.us.cell carcinom.s.(HNs.C) with a poor overall s.rvival rate (about 50%), particularly in cas.s.of m.tas.as.s. RNA-bas.d cancer biom.rkers.are a relatively advanced concept, and non-coding RNAs.currently have s.own prom.s.ng roles.in the detection and treatm.nt of various.m.lignancies. This.review underlines.the function of long non-coding RNAs.(lncRNAs. in the Os.C and its.s.bs.quent clinical im.lications. LncRNAs. a clas. of non-coding RNAs. are larger than 200 nucleotides.and res.m.le m.NA in num.rous.ways. However, unlike m.NA, lncRNA regulates.m.ltiple druggable and non-druggable s.gnaling m.lecules.through s.m.ltaneous.interaction with DNA, RNA, proteins. or m.croRNAs.depending on concentration and localization in cells. Upregulation of oncogenic lncRNAs.and down-regulation of tum.r s.ppres.or lncRNAs.are evident in Os.C tis.ues.and body fluids.s.ch as.blood and s.liva indicating their potential as.valuable biom.rkers. Targeted inhibition of candidate oncogenic lncRNAs.or over-expres.ion of tum.r s.ppres.or lncRNAs.s.owed potential therapeutic roles.in in-vivo anim.l m.dels. The types.of lncRNAs.that are expres.ed differentially in Os.C tis.ue and bodily fluids.have been s.s.em.tically docum.nted with s.ecificity and s.ns.tivity. This.review thoroughly dis.us.es.the biological functions.of s.ch lncRNAs.in Os.C cell s.rvival, proliferation, invas.on, m.gration, m.tas.as.s. angiogenes.s. m.tabolis.0} epigenetic m.dification, tum.r im.une m.croenvironm.nt, and drug res.s.ance. s.bs.quently, we addres.ed the diagnos.ic and therapeutic im.ortance of lncRNAs.in Os.C pre-clinical and clinical s.s.em., providing details.on ongoing res.arch and outlining potential future directions.for advancem.nts.in this.field. In es.ence, this.review could be a valuable res.urce by offering com.rehens.ve and current ins.ghts.into lncRNAs.in Os.C for res.archers.in fundam.ntal and clinical do

关键词： Cancer diagnos.s Head and neck cancer Long non-coding RNA (lncRNA) Non-coding RNA Oral s.uam.us.cell carcinom. (Os.C)

s.eroids. Tri- and m.roterpenoids.with a Quinone s.ructure—A Review

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International Journal of Organic Chem.s.ry 2024年第1期14卷 32-68页

作者： m.ryam.s. m. Aghaei Thies.Thiem.nn Departm.nt of Chem.s.ry College of Science United Arab Emirates University Al Ain United Arab Emirates

Terpenoids.with quinoid s.ructures.are found as.natural products. This.includes.s.eroidal quinones. quinones.with a s.cos.eroid s.ructure and m.roterpenoid quinones. Im.ortantly, catechol es.rogens.as.endogenous.m.tabolites.of es.radiol and es.rone are precurs.rs.of reactive quinones.and s.m.quinones. which are thought to contribute to es.rogen-induced carcinogenes.s. On the other hand, a num.er of quinones.that include s.bs.ituted naphthoquinones.and anthraquinones.are highly cytotoxic and have been us.d in cancer treatm.nt. This.m.kes.the s.ructures.interes.ing s.nthetic targets. The following is.a review of im.ortant natural and s.nthetic terpenoid and s.eroid quinone hybrids.

关键词： s.eroid s.cos.eroid m.roterpenoid Triterpenoid Quinone Anti-Tum.ur Agent Antibiotic Natural Product