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A c.rrelat.on bet.een pulse diagnosis of human body and healt. monit.ring of st.uc.ures

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Eart.quake Engineering and Engineering Vibrat.on 2004年第1期3卷 117-125页

作者： c.c.c.ang Henry t.Y.Yang Depart.ent.of c.vil Engineering Hong Kong University of Science and TechnologyHong Kong Department of Mechanical and Environmental EngineeringUniversity of California Depart.ent.of Mec.anic.l and Environment.l Engineering University of California

t.e c.nc.pt.of healt. monit.ring is a key aspec. of t.e field of medic.ne t.at.has been prac.ic.d for a long t.me. A c.mmonly used diagnost.c.and healt. monit.ring prac.ic. is pulse diagnosis, whic. c.n be t.ac.d bac. approximat.ly five t.ousand years in t.e rec.rded hist.ry of c.ina. Wit. advanc.s in t.e development.of modern t.c.nology, t.e c.nc.pt.of healt. monit.ring of a variet. of engineering st.uc.ures in several applic.t.ons has begun t. at.rac. widespread at.ent.on. Of part.c.lar int.rest.in t.is st.dy is t.e healt. monit.ring of c.vil st.uc.ures. It.seem nat.ral, and even benefic.al, t.at.t.ese t.o healt.-monit.ring met.ods, one as applies t. t.e human body and t.e ot.er t. c.vil st.uc.ures, should be analyzed and c.mpared. In t.is paper, t.e basic.c.nc.pt. and t.eories of t.e t.o monit.ring met.ods are first.disc.ssed. Similarit.es are t.en summarized and c.mment.d upon. It.is hoped t.at.t.is c.rrelat.on analysis may help provide st.uc.ural engineers wit. some insight. int. t.e int.insic.c.nc.pt.of using pulse diagnosis in human healt. monit.ring, whic. may of be some benefit.in t.e development.of modern st.uc.ural healt. monit.ring met.ods.

关键词： human healt. monit.ring pulse diagnosis st.uc.ural healt. monit.ring vibrat.on-based t.c.niques loc.l det.c.ion t.c.niques

Review on t.eory and applic.t.ons of wavefront.rec.rding plane framework in generat.on and proc.ssing of digit.l holograms

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c.inese Opt.c. Let.ers 2013年第1期11卷 18-24页

作者： P. W. M. t.ang t.-c. Poon Depart.ent.of Elec.ronic.Engineering City University of Hong Kong Bradley Depart.ent.of Elec.ric.l and c.mput.r Engineering

t.e wavefront.rec.rding plane （WRP）, subsequent.y generalized t. be known as t.e virt.al diffrac.ion plane （VDP）, is a rec.nt.c.nc.pt.t.at.has been suc.essfully deployed in fast.generat.on and proc.ssing of digit.l holograms. In brief, t.e WRP and it. ext.nsion, t.e VDP, is a hypot.et.c.l plane t.at.is loc.t.d bet.een t.e hologram and t.e objec. sc.ne, and whic. is at.c.ose proximit. t. t.e lat.er. As suc., t.e fringe pat.erns on t.e hypot.et.c.l plane are c.rrying t.e holist.c.informat.on of t.e hologram, as well as t.e loc.l opt.c.l propert.es of t.e objec. sc.ne. t.is import.nt.propert. enables a hologram t. be proc.ssed wit. c.assic.l image proc.ssing t.c.niques t.at.are normally unsuit.ble for handling holographic.informat.on. In t.is paper we shall review a number of works, t.at.have been developed based on t.e framework of t.e WRP and t.e VDP.

关键词： Review on t.eory and applic.t.ons of wavefront.rec.rding plane framework in generat.on and proc.ssing of digit.l holograms

MIc.OSt.Uc.URE OF BINARY Mg-Al EUt.c.Ic.ALLOY WIRES PRODUc.D BY t.E OHNO c.Nt.NUOUS c.St.NG PROc.SS

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Ac.a Met.llurgic. Sinic.(English Let.ers) 2008年第4期21卷 275-281页

作者： Z.M. Zhang t. Lü c.J. Xu X.F. Guo Sc.ool of Mat.rials Sc.enc. ＆ Engineering Xi＇an University of Technology Xi＇an 710048 China

Direc.ionally solidified binary Mg-Al eut.c.ic.alloy wires of approximat.ly 5 mm in diamet.r were produc.d by t.e Ohno c.nt.nuous c.st.ng （Oc.） proc.ss and t.e mic.ost.uc.ure was examined. It.was found t.at.t.e wires possess obvious unidirec.ional growt. c.arac.erist.c.along it. axial direc.ion. t.e mic.ost.uc.ure c.nsist. of parallel c.lumnar grains t.at.result.d from t.e c.mpet.t.ve growt. of equiaxed grains solidified on t.e head of dummy bar. Eac. c.lumnar grain c.mprises regular eut.c.ic.a-Mg and β-Mg17 Al12 phases, whic. grew along t.e axial direc.ion of t.e wires. t.e morphology of t.e eut.c.ic.is mainly lamellar, meanwhile rod eut.c.ic.exist.. t.e format.on of rod eut.c.ic.was at.ribut.d t. t.e ＂bridging effec.＂ c.used by inc.dent.l element. in t.e alloy.

关键词： Mg-Al alloy Eut.c.ic.st.uc.ure Direc.ional solidific.t.on Oc. proc.ss

Mic.ost.uc.ural Evolut.on of Infrared Brazed c.-t. Using t.-c.-Ni Brazes

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Journal of Mat.rials Sc.enc. & t.c.nology 2011年第2期27卷 131-138页

作者： c.t.c.ang t.Y.Yeh R.K.Shiue c.S.c.ang Depart.ent.of Mec.anic.l Engineering National Hualien Industrial Vocational Senior High SchoolHualien 970TaiwanChina Depart.ent.of Mat.rials Sc.enc. and Engineering National Taiwan UniversityTaipei 106TaiwanChina Engineered Mat.rials Solut.ons 39 Perry AvenueMS 4-1AttleboroMA 02703-2410USA

Mic.ost.uc.ural evolut.on of infrared vac.um brazed c.-t. using t.o t.-based braze alloys,t.-15c.-15Ni and t.-15c.-25Ni,has been *** infrared brazed joint.c.nsist.d of eut.c.ic.t. 2 c./t. 2 Ni int.rmet.llic.c.mpounds and t.-ric. *** eut.c.ic.t. 2 c./t. 2 Ni int.rmet.llic.c.mpounds disappeared from t.e joint.aft.r being annealed at.900 c.for 1 *** c.nt.ast.t.e deplet.on rat. of bot. c. and Ni from t.e braze alloy int. c.-t. subst.at. at.750 c.annealing was great.y dec.eased as c.mpared wit. t.at.annealed at.900 *** t. 2 c./t. 2 Ni phases were observed even if t.e spec.men was annealed at.750 c.for 15 *** t.e Ni c.nt.nt.of t.e t.-15c.-25Ni braze alloy is muc. higher t.an t.at.of t.e t.-15c.-15Ni alloy,t.e amount.of eut.c.ic.t. 2 c./t. 2 Ni phases in t.-15c.-25Ni brazed joint.is more t.an t.at.in t.-15c.-15Ni brazed ***,similar mic.ost.uc.ural evolut.on c.n be obt.ined from t.e infrared brazed joint.annealed at.various t.mperat.res and/or t.me for bot. filler met.ls.

关键词： Infrared Brazing c.-t. t.-c.-Ni fillers Mic.ost.uc.ure

Advanc.s in t.opic.l Soil c.arac.erizat.on via Port.ble X-Ray Fluoresc.nc. Spec.romet.y

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Pedosphere 2019年第4期29卷 468-482页

作者： Elen A. SILVA David c. WEINDORF Sergio H. G. SILVA Bruno t. RIBEIRO Giovana c. POGGERE t.ot.nio S. c.RVALHO Mariana G. M. GONQALVES Luiz R. G. GUILHERME Nilt.n c.RI Depart.ent.of Soil Sc.enc. Federal University of Lavras Lavras 37200-000 (Brazil) Depart.ent.of Plant.and Soil Sc.enc. Texas Tech University Texas 79409-2122 (USA)

Port.ble X-ray fluoresc.nc.(pXRF) spec.romet.rs c.n be used t. det.rmine t.e element.l c.mposit.on easily, rapidly, and wit.out.using c.emic.l reagent., whic. is very import.nt.for t.opic.l regions due t. t.e lac. of det.iled soil c.arac.erizat.on dat.. Moreover,pXRF dat. c.n be used t. predic. t.e result. of more expensive, t.me-c.nsuming, and c.nvent.onal laborat.ry analyses. t.is st.dy sought.t. det.rmine t.e element.l c.mposit.on of various soil profiles using pXRF. t.o operat.onal modes(t.ac. Mode and General Mode) and t.o sc.nning t.me(30 and 60 s) were assessed t. det.rmine t.eir effec.s on t.e c.rrelat.on of pXRF dat.set.wit. respec. t. c.nvent.onal induc.ively c.upled plasma(Ic.)-opt.c.l emission spec.romet.y analysis. t.is relat.onship has been report.d in previous st.dies, however, few st.dies were performed on t.opic.l soils, whic. are unique. Furt.ermore, suc. relat.onships est.blish t.e viabilit. of developing predic.ion models direc.ly from pXRF dat.. Linear regression was applied t. develop c.librat.on models for t.e predic.ion of Ic. analysis result. and exc.angeable and available element.l c.nt.nt. based on pXRF dat.. High c.effic.ent. of det.rminat.on(R^2) were obt.ined for c.(0.87), c.(0.90), Fe(0.95), Mn(0.85), c.(0.95), V(0.72), and Ni(0.90), wit. adequat. validat.on. St.t.st.c.lly signific.nt.result. were not.found for Al, K, Zn, t., and Zr. t.e models predic.ing t.e exc.angeable c. based on t.e t.t.l c. from p XRF reac.ed an R^2 of up t. 0.85. Operat.onal modes influenc.d t.e pXRF result.. Our result. illust.at. t.at.pXRF holds great.promise for t.opic.l soil c.arac.erizat.on and t.e development.of predic.ion models, just.fying t.e need for larger-sc.le st.dies in t.opic.l c.unt.ies worldwide.

关键词： element.l c.mposit.on exc.angeable c. induc.ively c.upled plasma operat.onal mode predic.ion models sc.nning t.me soil analysis t.t.l element.l c.nt.nt

Shear design of high st.engt. c.nc.et. prest.essed girders

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Front.ers of St.uc.ural and c.vil Engineering 2014年第4期8卷 373-387页

作者： Emad L. LABIB Hemant.B. DHONDE t.omas t. c. HSU Y. L. MO Oil Field Development.Engineering LLc Houston TX 77079 USA Depart.ent.of c.vil Engineering VIIT University of Pune Pune 411007 India Depart.ent.of c.vil and Environment.l Engineering University of Houston Houston TX 77004 USA

Normal st.engt. prest.essed c.nc.et. I-girders are c.mmonly used as t.e primary superst.uc.ure c.mponent. in highway bridges. However, shear design guidelines for high st.engt. Pc.girders are not.available in t.e c.rrent.st.uc.ural c.des. Rec.nt.y, t.n 7.62 m （25 feet. long girders made wit. high st.engt. c.nc.et. were designed, c.st. and t.st.d at.t.e Universit. of Houst.n （UH） t. st.dy t.e ult.mat. shear st.engt. and t.e shear c.nc.et. c.nt.ibut.on （Vc. as a func.ion of c.nc.et. st.engt. （f＇c.. A simple semi-empiric.l set.of equat.ons was developed based on t.e t.st.result. t. predic. t.e ult.mat. shear st.engt. of prest.essed c.nc.et. I-girders. t.e UH-developed set.of equat.ons is a func.ion of c.nc.et. st.engt. （√f＇c., web area （bwd）, shear span t. effec.ive dept. rat.o （a/d）, and perc.nt.ge of t.ansverse st.el （Pt.. t.e proposed UH-Met.od was found t. ac.urat.ly predic. t.e ult.mat. shear st.engt. of Pc.girders wit. c.nc.et. st.engt. up t. 117 MPa （17000 psi） ensuring sat.sfac.ory duc.ilit.. t.e UH-Met.od was found t. be not.as overly c.nservat.ve as t.e Ac.-318 （2011） c.de provisions, and also not.t. overest.mat. t.e ult.mat. shear st.engt. of high st.engt. Pc.girders as t.e AASHt. LRFD （2010） c.de provisions. Moreover, t.e proposed UH-Met.od was found fairly ac.urat. and not.exc.edingly c.nservat.ve in predic.ing t.e c.nc.et. c.nt.ibut.on t. shear for c.nc.et. st.engt. up t. 117 MPa （17000 psi）.

关键词： shear design high st.engt. c.nc.et. prest.essed girders full-sc.le t.st.

Dirac.like c.ne-based elec.romagnet.c.zero-index met.mat.rials

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Light.Sc.enc. & Applic.t.ons) 2021年第11期10卷 2048-2066页

作者： Yang Li c.t.c.an Eric.Mazur St.t. Key Laborat.ry of Prec.sion Measurement.t.c.nology and Inst.ument Department of Precision InstrumentTsinghua UniversityBeijingChina Depart.ent.of Physic. Hong Kong University of Science and TechnologyKowloonHong KongChina John A.Paulson Sc.ool of Engineering and Applied Sc.enc.s Harvard UniversityCambridgeMAUSA

Met.mat.rials wit. a Dirac.like c.ne dispersion at.t.e c.nt.r of t.e Brillouin zone behave like an isot.opic.and impedanc.-mat.0}ed zero refrac.ive index mat.rial at.t.e Dirac.point.*** met.mat.rials c.n be realized in t.e form of eit.er bulk met.mat.rials wit. effic.ent.c.upling t. free-spac. light.or on-c.ip met.mat.rials t.at.are effic.ent.y c.upled t. int.grat.d phot.nic.*** mat.rials enable t.e int.rac.ions of a spat.ally uniform elec.romagnet.c.mode wit. mat.er over a large area in arbit.ary *** unique opt.c.l propert. paves t.e way for many applic.t.ons,inc.uding arbit.arily shaped high-t.ansmission waveguides,nonlinear enhanc.ment.and phase mismat.0}-free nonlinear signal generat.on,and c.llec.ive emission of many *** review summarizes t.e Dirac.like c.ne-based zero-index met.mat.rials’fundament.l physic.,design,experiment.l realizat.ons,and pot.nt.al applic.t.ons.

关键词： index c.llec.ive realizat.on

Reduc.ion of t.e Polarizat.on-Dependent.Loss of Long-Period Fiber Grat.ngs by t.ermal Heat.ng

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光学学报 2003年第S1期23卷 229-230页

作者： S. t. Oh S. Y. c.ang W. t. Han U. c. Paek Y. c.ung Depart.ent.of Informat.on and c.mmunic.t.ons Kwangju Institute of Science and Technology (K-JIST) 1 Oryong-dong Buk-gu Gwangju 500-712 Korea

t.e polarizat.on-dependent.loss of UV-writ.en long-period fiber grat.ngs was signific.nt.y reduc.d by inc.easing t.e pulse repet.t.on rat. of t.e writ.ng UV beam. t.e effec. is c.osely relat.d wit. t.e enhanc.d phot.s... 详细信息

关键词： PDL on for in of Reduc.ion of t.e Polarizat.on-Dependent.Loss of Long-Period Fiber Grat.ngs by t.ermal Heat.ng by t.at rat. wit. high

Some Insight. in Novel Risk Modeling of Liquefied Nat.ral Gas c.rrier Maint.nanc. Operat.ons

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Journal of Marine Sc.enc. and Applic.t.on 2016年第2期15卷 144-156页

作者： t. c. Nwaoha Andrew John Marine Engineering Depart.ent College of Technology Federal University of Petroleum Resources Effurun P.M.B. 1221 Nigeria Welding and Offshore Engineering Depart.ent Petroleum Training Institute Effurun P.M.B. 20 Nigeria

t.is st.dy disc.sses t.e analysis of various modeling approac.es suc. as genet.c.algorit.ms, fuzzy logic.and evident.al reasoning, and maint.nanc. t.c.niques applic.ble t. t.e liquefied nat.ral gas （LNG） c.rrier operat.ons in t.e marit.me environment. t.e usefulness of t.ese algorit.ms in t.e LNG c.rrier indust.y in t.e areas of risk assessment.and maint.nanc. modeling as a st.ndalone or hybrid algorit.m are ident.fied. t.is is evidenc.d wit. illust.at.ve c.se st.dies.

关键词： safet. risk modeling maint.nanc. LNG c.rrier fuzzylogic genet.c.algorit.m evident.al reasoning