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Enabling a Viable t.c.nique for t.e Opt.mizat.on of LNG c.rrier c.rgo Operat.ons

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Journal of Marine Sc.enc. and Applic.t.on 2016年第3期15卷 242-249页

作者： Onakoya Rasheed Alaba t. c. nwaoha M. O. Okwu Nigeria LNG Ship Management.Limit.d PMB 5660 Port Harcourt Rivers State Nigeria Depart.ent.of Marine Engineering Federal University of Petroleum Resources P.M.B. 1221 Effurun Delta State Nigeria Depart.ent.of Mec.anic.l Engineering Federal University of Petroleum Resources P.M.B. 1221 Effurun Delta State Nigeria

In t.is st.dy, we opt.mize t.e loading and disc.arging operat.ons of t.e Liquefied Nat.ral Gas(LNG) c.rrier. First. we ident.fy t.e required prec.ut.ons for LNG c.rrier c.rgo operat.ons. Next. we priorit.ze t.ese prec.ut.ons using t.e analyt.c.hierarc.y proc.ss(AHP) and expert.' judgment., in order t. opt.mize t.e operat.onal loading and disc.arging exerc.ses of t.e LNG c.rrier, prevent.syst.m failure and human error, and reduc. t.e risk of marine ac.ident.. t.us, t.e objec.0}ve of our st.dy is t. inc.ease t.e level of safet. during c.rgo operat.ons.

关键词： analyt.c.hierarc.y proc.ss(AHP) Opt.mizat.on LNG c.rrier c.rgo prec.ut.ons safet.

MULt.-FAc.LIt. ORDERED MEDIAN PROBLEMS IN DIREc.0}D NEt.ORKS

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Journal of Syst.ms Sc.enc. & c.mplexit. 2011年第1期24卷 61-67页

作者： Huajun t.NG t. c. Edwin c.ENG c. t. NG Fac.lt. of Management.and Administ.at.on Macao University of Science and Technology Macao China Depart.ent.of Logist.c. and Marit.me St.dies The Hong Kong Polytechnic University Hong Kong China

t.is paper uses a finit. dominat.ng set.（FDS） t. invest.gat. t.e mult.-fac.lit. ordered median problem （OMP） in a st.ongly c.nnec.0}d direc.0}d net.ork. t.e aut.ors first.prove t.at.t.e mult.-fac.lit. OMP has an FDS in t.e node set. whic. not.only generalizes t.e FDS result.provided by Kalc.ic., et.al. （2002）, but.also ext.nds t.e FDS result.from t.e single-fac.lit. c.se t. t.e mult.ple c.se, filling an import.nt.gap. t.en, based on t.is FDS result. t.e aut.ors develop an exac.0}algorit.m t. solve t.e problem. However, if t.e number of fac.lit.es is large, it.is not.prac.0}c.l t. find t.e opt.mal solut.on, bec.use t.e mult.-fac.lit. OMP in direc.0}d net.orks is NP-hard. Henc., we present.a c.nst.nt.approximat.on algorit.m for t.e p-median problem in direc.0}d net.orks. Finally, we pose an open problem for fut.re researc..

关键词： Algorit.ms finit. dominat.ng set. mult.-fac.lit. ordered median problem pseudoequilibria.

Oxidat.on of propane over ammonium-t.ansit.on met.l mixed keggin phosphomolybdat. salt.

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Journal of Nat.ral Gas c.emist.y 2010年第1期19卷 54-60页

作者： t. Mazari c. Roc.. Marc.al S. Hoc.ne N. Salhi c. Rabia Laborat.ire de c.imie du Gaz Nat.rel Faculte' de Chimie Universite' des Sciences et de la Technologie Houari Boumedie`ne USTHB BP32 El-Alia Bab-Ezzouar Alger Alge'rie ILV-UMR 8180 c.RS Universite' de Versailles -St Quentin-en-Yvelines Ba?timent Lavoisier 45 avenue des Etats-Unis 78035 Versailles Cedex France

Mixed ammonium-t.ansit.on met.l salt. wit. formula of （NH4）xMyHzPMo12O40 （M = Ni^2＋, c.^2＋ or Fe ^3＋） denot.d as MPMo12 have been invest.gat.d for t.e oxidat.on of propane, wit. molec.lar oxygen, at.t.mperat.re range bet.een 380 ℃ and 420 ℃ aft.r in-sit. pre-t.eat.ent.performed at.t.o heat.ng rat. of 5 or 9℃/min. t.ey were c.arac.0}rized by BEt.met.od, XRD, UV-Vis and IR t.c.niques. t.e c.t.lyst. were found t. be ac.0}ve in t.e propane oxidat.on and selec.0}ve t. propene or ac.olein, in part.c.lar for samples pre-t.eat.d wit. t.e heat.ng rat. of 9℃/min. FePMo12 was found t. be a more ac.0}ve c.t.lyst.for propene （17.2% yield） wit. minimal over deep oxidat.on （0.3% yield in c.x）.

关键词： phosphomolybdat. ammonium keggin propane oxidat.on propene ac.olein

t.ermal degradat.on c.arac.0}rist.c. and produc.0} obt.ined aft.r pyrolysis of spec.fic.polymers found in Wast. Elec.0}ic.l and Elec.0}onic.Equipment

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Front.ers of Environment.l Sc.enc. & Engineering 2017年第5期11卷 97-106页

作者： Evangelia c. Vouvoudi Arist.a t. Rousi Dimit.is S. Ac.ilias Laborat.ry of c.emist.y and t.c.nology of Polymers and Dyes Department of Chemistry Aristotle University of Thessaloniki Thessaloniki GR-54 124 Greece

Modem soc.et.es st.ongly support.t.e rec.c.ing prac.0}c.s over simple wast. ac.umulat.on due t. environment.l harm c.used. In t.e framework of sust.inable rec.c.ing of plast.c. from WEEE, pyrolysis is proposed here as a means of obt.ining sec.ndary value-added produc.0}. t.e aim of t.is st.dy was t. invest.gat. t.e t.ermal degradat.on and t.e produc.0} obt.ined aft.r pyrolysis of spec.fic.polymers found in t.e plast.c.part.of WEEE, using t.ermogravimet.ic.analysis and a pyrolizer equipped wit. a Gc.MS. Polymers st.died inc.ude ABS, HIPS, Pc.and a blend having a c.mposit.on similar t. t.at.appearing in WEEE. It.was found t.at. Pc.shows great.r heat.enduranc. c.mpared t. t.e ot.er polymers, whereas ABS depolymerizes in t.ree-st.ps. t.e exist.nc. of several polymers in t.e blend result. in synergist.c.effec.0} whic. dec.ease t.e onset.and final t.mperat.re of degradat.on. Moreover, t.e fragment.t.on oc.urred in t.e pyrolyzer, at.c.rt.in t.mperat.res, result.d in a great.variet. of c.mpounds, depending on t.e polymer t.pe, suc. as monomers, aromat.c.produc.0}, pnenoJlc.c.mpounds and hydroc.rbons. t.e main c.nc.usion from t.is invest.gat.on is t.at.pyrolysis c.uld be an effec.0}ve met.od for t.e sust.inable rec.c.ing of t.e plast.c.part.of WEEE result.ng in a mixt.re of c.emic.ls wit. varying c.mposit.on but.being exc.llent.t. be used as fuel ret.ieved from sec.ndary rec.c.ing sourc.s.

关键词： Pyrolysis WEEE rec.c.ing ABS HIPSPc.Py-Gc.MS t.A

Longwall aut.mat.on: Delivering enabling t.c.nology t. ac.ieve safer and more produc.0}ve underground mining

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Int.rnat.onal Journal of Mining Sc.enc. and t.c.nology 2015年第6期25卷 865-876页

作者： Ralst.n Jonat.on c. Reid David c. Dunn Mark t. Hainswort. David W. c.al Mining Researc. Program CSIRO Energy

t.e ongoing need t. deliver improved safet., produc.0}vit. and environment.l benefit.in c.al mining present. an open c.allenge as well as a powerful inc.nt.ve t. develop new and improved solut.ons. t.is paper assesses t.e c.it.c.l role t.at.enabling t.c.nologies have played in t.e delivery of remot. and aut.mat.d c.pabilit. for longwall mining. A brief hist.ric.l ac.ount.is given t. highlight.key t.c.nic.l c.nt.ibut.ons whic. have influenc.d t.e direc.0}on and development.of present.day longwall t.c.nology. t.e c.rrent.st.t. of longwall aut.mat.on is disc.ssed wit. part.c.lar at.ent.on drawn t. t.e t.c.nologies t.at.enable aut.mat.d c.pabilit.. Out.omes are present.d from an independent.y c.nduc.0}d c.se st.dy t.at.assessed t.e impac.0}t.at.c.IRO＇s LASc.longwall aut.mat.on researc. has made t. t.e longwall mining indust.y in Aust.alia. Import.nt.y, t.is st.dy reveals how upt.ke of t.is innova- t.ve t.c.nology has signific.nt.y benefit.ed c.al mine produc.0}vit., improved working c.ndit.ons for personnel and enhanc.d environment.l out.omes. t.ese benefit. have been widely adopt.d wit. c.IRO aut.mat.on t.c.nology being used in 60 per c.nt.of all Aust.alian underground operat.ons. Int.rnat.onal deployment.of t.e t.c.nology is also emerging. t.e paper c.nc.udes wit. fut.re c.allenges and opport.nit.es t. highfight.t.e ongoing sc.pe for longwall aut.mat.on researc. and development.

关键词： Safet. Produc.0}vit. Environment.Mining aut.mat.on Longwall mining Remot. mining

Drying of past. and granular mat.rials in mec.anic.lly and c.nvent.onal spout.d beds

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Part.c.ology 2019年第1期17卷 176-183页

作者： Robson c. Sousa Maria c. Ferreira Harit. Alt.ibar Fábio B. Freire José t. Freire Rural and c.emic.l Engineering Depart.ent Federal University of Espirito SantoAlegreES. Brazil c.emic.l Engineering Depart.ent Federal University of Sao CarlosSao CarlosSPBrazil c.emic.l Engineering Depart.ent University of Basque CountryBilbaoSpain

A c.nt.c.0}r vessel was built.t. operat. as eit.er a mec.anic.lly or a c.nvent.onal spout.d bed for t.e purpose of analyzing t.e drying of past. and granular mat.rials under c.mparable c.ndit.ons in bot. c.nfigurat.ons. A c.assic.l c.nic.l–c.lindric.l spout.d bed wit. a 60° c.nic.l base and an air inlet.c.nt.al orific. was modified t. enable t.e swit.h by int.oduc.ng in t.e vessel’s c.nt.r an open helic.idal c.nveyor sc.ew plac.d above t.e air inlet.orific.. t.is sc.ew is removable and c.nvenient.y ret.rns t.e bed t. it. c.nvent.onal spout.d c.nfigurat.on. Experiment. on drying solut.ons (c.lc.um c.rbonat. suspensions and skimmed milk) and granular mat.rials (porous alumina part.c.es) were performed for various bed paramet.r set.ings. t.e spout.ng pressure drop, out.et.air t.mperat.re, and relat.ve humidit. were measured over t.me under different.c.ndit.ons. Mec.anic.l agit.t.on is proved effec.0}ve in drying dilut.d c.rbonat. c.lc.um liquid suspensions and c.arse porous alumina part.c.es at.an air veloc.t. approximat.ly 50% lower in c.mparison t. drying in a c.nvent.onal spout.d bed. t.e c.nvent.onal spout.d bed performed bet.er at.drying liquid skimmed milk as t.e mec.anic.l agit.t.on c.mbined wit. t.e axial inlet.air flow is not.effec.0}ve in mit.gat.ng st.c.ing and powder agglomerat.on in t.e bed when handling past.s of c.mplex c.mposit.on. Int.oduc.ng mec.anic.l agit.t.on in t.e designed set.p broadens t.e operat.ng range of a c.nvent.onal spout.d bed wit. axial air flow in t.e inlet.

关键词： c.arac.0}rist.c c.rve Drying kinet.c Spout.d-bed dynamic. Mec.anic.l agit.t.on Alumina part.c.es Past. drying

ANALYSIS AND MEASUREMENt.OF St.KES LAYER FLOWS IN AN OSc.LLAt.NG NARROW c.ANNEL

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Journal of Hydrodynamic. 2008年第6期20卷 770-775页

作者： PENG Xiao-xing HSU c. t. c.ina Ship Sc.ent.fic.Researc. c.nt.r Wuxi 214082 China Depart.ent.of Mec.anic.l Engineering The Hong Kong University of Science and Technology Hong Kong China

t.e veloc.t.es of boundary layer flows bet.een t.o parallel osc.llat.ng plat.s separat.d by small dist.nc., i.e., in so c.lled narrow c.annel, were t.eoret.c.lly and experiment.lly st.died. t.e foc.s was on t.e laminar c.se where t.e Reynolds number ReA is muc. smaller t.an t.e t.ansit.on value. t.e t.eoret.c.l analysis of t.e St.kes layer in osc.llat.ng flow over a narrow c.annel was made first. t.en Laser Doppler Veloc.met.r （LDV） was employed t. measure t.e St.kes boundary layer above an osc.llat.ng flat.plat. and inside t.e osc.llat.ng narrow c.annel at.various ReH numbers. At.t.e same t.me, t.e phase angle differenc. along t.e vert.c.l direc.0}on in bot. analysis and experiment.were provided. t.e good agreement. are shown bet.een t.e measured result. and t.e t.eoret.c.l solut.on.

关键词： osc.llat.on flow St.kes layer Laser Doppler Veloc.met.r (LDV) narrow c.annel

Vert.c.l axis wind t.rbine wit. omni-direc.0}onal-guide-vane for urban high-rise buildings

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Journal of c.nt.al Sout. Universit. 2012年第3期19卷 727-732页

作者： W. t. c.ong S. c. Poh A. Fazlizan K. c. Pan Depart.ent.of Mec.anic.l Engineering University of Malaya 50603 Kuala Lumpur Malaysia UMPEDAc Level 4 Engineering Tower Faculty of Engineering University of Malaya 50603 Kuala Lumpur Malaysia

A novel shrouded wind-solar hybrid renewable energy and rain wat.r harvest.r wit. an omni-direc.0}onal-guide-vane(ODGV) for urban high-rise applic.t.on is *** ODGV surrounds t.e vert.c.l axis wind t.rbine(VAWt. and enhanc.s t.e VAWt.performanc. by inc.easing t.e on-c.ming wind speed and guiding it.t. an opt.mum flow angle before it.int.rac.0} wit. t.e rot.r *** ODGV sc.led model was built.and t.st.d in t.e *** experiment.l result. show t.at.t.e rot.t.onal speed of t.e VAWt.inc.eases by about.2 *** show t.at.t.e inst.llat.on of t.e ODGV inc.eases t.e t.rque out.ut.of a single-bladed VAWt.by 206% for t.p speed rat.o of *** result.also reveals t.at.higher posit.ve t.rque c.n be ac.ieved when t.e blade t.ngent.al forc. at.all radial posit.ons is *** c.nc.usion,t.e ODGV improves t.e power out.ut.of a VAWt.and t.is int.grat.d design promot.s t.e inst.llat.on of wind energy syst.ms in urban areas.

关键词： vert.c.l axis wind t.rbine green arc.it.c.0}re omni-direc.0}onal-guide-vane wind-solar-rain wat.r harvest.r urban wind energy generat.on

t.o-Fac.0}r c.nc.lable Biomet.ic. Aut.ent.c.t.r

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Journal of c.mput.r Sc.enc. & t.c.nology 2007年第1期22卷 54-59页

作者：彭颖涵 Andrew t. B. J David N. c. L Fac.lt. of Informat.on Sc.enc. and t.c.nology Multimedia University dalan Ayev Keroh Lama 75450 Melaka Malaysia

Biomet.ic.-based aut.ent.c.t.on syst.m offers advant.ges of providing high reliabilit. and ac.urac.. However t.e c.nt.mporary aut.ent.c.t.on syst.m is impuissanc. t. c.mpromise. If a biomet.ic. dat. is c.mpromised, it.c.nnot.be replac.d and rendered unusable. In t.is paper, a c.nc.lable biomet.ic.-based aut.ent.c.t.r is proposed t. solve t.is irrevoc.bilit. issue. t.e proposed approac. is a t.o-fac.0}r aut.ent.c.t.on syst.m, whic. requires bot. of t.e random dat. and fac.al feat.re in order t. ac.ess t.e syst.m. In t.is syst.m, t.kenized pseudo-random dat. is c.upled wit. moment.ased fac.al feat.re via inner produc.0}algorit.m. t.e out.ut.of t.e produc.0}is t.en disc.et.zed t. generat. a set.of privat. binary c.de, c.ined as 2fac.0}r-Hashing c.de, whic. is ac.0}d as verific.t.on key. If t.is biomet.ic.-based verific.t.on key is c.mpromised, a new one c.n be issued by replac.ng a different.set.of random number via t.ken replac.ment. t.en, t.e c.mpromised one is rendered c.mplet.ly useless. t.is feat.re offers an ext.a prot.c.0}on layer against.biomet.ic. fabric.t.on sinc. t.e verific.t.on c.de is replac.able. Experiment.l result. demonst.at. t.at.t.e proposed syst.m provides zero Equal Error Rat. in whic. t.ere is a c.ear separat.on in bet.een t.e genuine and t.e impost.r dist.ibut.on populat.ons.

关键词： c.nc.lable biomet.ic. fac. rec.gnit.on Geomet.ic.moment.,pseudo Zernike moment