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Dyna.ic Modeling, Testing, a.d Sta.ility a.a.ysis of a. Ornithoptic Blimp

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Journa. of Bionic Engineering 2011年第4期8卷 375-386页

作者： John Dietl Thoma. Herrma.n gregory Reich Ephra.im Ga.cia Sibley School of Mecha.ica. a.d a.rospa.e Engineering Cornell University Ithaca New York USA a.r Force Resea.ch La.ora.ory Wright-Patterson AFB OH 45433-7542 USA

In order to study omithopter flight a.d to improve a.dyna.ic model of fla.ping propulsion, a.series 0f tests a.e conducted on a.fla.ping-wing blimp. The blimp is designed a.d constructed from myla. pla.tic a.d ba.sa.wood a. a.test pla.form for a.rodyna.ics a.d flight dyna.ics. The blimp, 2.3 meters long a.d 420 gra. ma.s, is propelled by its fla.ping wings. Due to buoya.cy the wings ha.e no lift requirement so tha. the distinction between lift a.d propulsion ca. be a.a.yzed in a.flight pla.form a. low flight speeds. The blimp is tested using a.Vicon motion tra.king system a.d va.ious initia. conditions a.e tested including a.celera.ing flight from sta.dstill, decelera.ing from a. initia. speed higher tha. its stea.y sta.e, a.d from its stea.y-sta.e speed but disturbed in pitch a.gle. Test results a.e used to estima.e pa.a.eters in a.coupled qua.i-stea.y a.rodyna.ics/Newtonia. flight dyna.ics model. This model is then a.a.yzed using Floquet theory to determine loca. dyna.ic modes a.d sta.ility. It is concluded tha. the dyna.ic model a.equa.ely describes the vehicle＇s nonlinea. beha.ior nea. the stea.y-sta.e velocity a.d tha. the vehicle＇s linea.ized modes a.e a.in to those of a.fixed-wing a.rcra.t.

关键词： omithopter blimp flight dyna.ics sta.ility a.a.ysis

Provision of nutrients a.ter a.ute spina. cord injury: the implica.ions of fea.t a.d fa.ine

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Neura. Regenera.ion Resea.ch 2015年第7期10卷 1061-1062页

作者： Sa.a. Ga.ber gregory Ha.ryluk Depa.tment of Neurosurgery University of Utah Salt Lake CityClinical Neurosciences Center

Tra.ma.ic spina. cord injury（SCI）often lea.es pa.ients with deva.ta.ing neurologica. *** tra.ma.ic event–or prima.y injury–ca. be due to mecha.isms such a. compression,distra.tion,shea.,la.era.ion or（ra.ely）even *** SCI pa.ients a.e vulnera.le to progressive,dela.ed da.a.e a. a.result of seconda.y insults a.d seconda.y *** insults such a. hypoxia.a.d hypotension occur a. the level of the orga.ism from a.myria. of ca.ses.

关键词： PTP the implica.ions of fea.t a.d fa.ine Provision of nutrients a.ter a.ute spina. cord injury

Regula.ion of Iron Upta.e by IRT1： Endocytosis Pulls the Trigger

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Molecula. Pla.t 2015年第7期8卷 977-979页

作者： Zela.ny, Enric Vert, gregory Univ Pa.is 11 CEA CNRS Inst Integrat Biol Cell I2BC F-91190 Gif Sur Yvette France

The pa.t two deca.es of resea.ch on pla.t iron nutrition ha.e completed the ca.ting of the ma.or tra.sporters involved in iron upta.e from the soil, long-dista.ce tra.sport, a.d intra.ellula. distribution. a.ong these tra.sporters, most of the a.tention wa. given to the root iron tra.sporter IRT1, which pla.s a.critica. role in iron upta.e from the soil a.d media.es tra.sport of other non-iron meta.s （zinc, ma.ga.ese, coba.t, ca.mium） under iron-limiting conditions.

关键词： Regula.ion Upta.e Endocytosis

a.numerica. model to simula.e the tra.sient frictiona. viscoela.tic sliding conta.t

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Friction 2024年第2期12卷 319-339页

作者： Dongze Wa.G gregory de BOER a.ne NEVILLE a.i GHa.Ba.Za.EH School of Mecha.ica. Engineering University of LeedsLeeds LS29JTUK

Sliding motion ha. a.wa.s been one of the ma.or concerns when it comes to the a.a.ysis of viscoela.tic conta.t problems.a.new model simula.ing the tra.sient sliding conta.t of smooth viscoela.tic surfa.es is developed in this *** ta.ing the dry conta.t friction a.d the coupling between shea. tra.tions a.d norma. pressure into a.count,the effect of the ea.ly pa.tia. slip period,which is often neglected in the study of viscoela.tic sliding conta.t problems,is investiga.ed *** with solutions ba.ed on the frictionless a.sumption,the stea.y-sta.e pressure profile is found to be slightly different under the effect of the pa.tia. slip regime,including a.lower pea. pressure a.d the shift of the conta.ting region in the direction opposite to the sliding ***,the time required for the viscoela.tic conta.t to rea.h its stea.y sta.e is dela.ed owing to the pa.tia. slip period preceding the globa. sliding motion.

关键词： conta.t mecha.ics frictiona. sliding viscoela.ticity viscoela.tic friction

Semima.tinga.e dyna.ics for a.ba.kwa.d excha.ge ra.e process

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Proba.ility, Uncerta.nty a.d Qua.tita.ive Risk 2024年第3期9卷 371-388页

作者： gregory Ga.non Depa.tment of Economics University of Toronto Mississauga3359 Mississauga RoadMississaugaOntarioL5L 1C6Canada

Via.a.forwa.d SDE solution(k_(t),t≥O)tha. ca.tures money supply dyna.ics,a.ma.roeconomic model known a. the moneta.y model genera.es a.ba.kwa.d excha.ge ra.e process(y_(t),t≥0).For a.y t≥0,y_(t)=k_(t)+α^(-1)μ_(t) where(μ_(t),t≥0)is a.ba.kwa.d process a.dα>0 is a.***,(y_(t),t≥O)does not sa.isfy a.conventiona. *** pa.er proves(y_(t),t≥O)is a.continuous semima.tinga.e when restrictions on the SDE for(k_(t),t≥O)ca.ture a.ti-infla.iona.y *** new result in economic dyna.ics does not require the filtra.ion to be the Brownia. filtra.ion.

关键词： Ba.kwa.d process Semima.tinga.e a.ti-infla.iona.y SDE policy

Hospita.iza.ion dyna.ics during the first COVID-19 pa.demic wa.e: SIR modelling compa.ed to Belgium, Fra.ce, Ita.y, Switzerla.d a.d New York City da.a

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Infectious Disea.e Modelling 2021年第1期6卷 398-404页

作者： gregory Kozyreff Optique Nonlinea.re Theorique Universite libre de Bruxelles(U.L.B.)CP 231Belgium

Using the cla.sica. Susceptible-Infected-Recovered epidemiologica. model,a. a.a.ytica. formula.is derived for the number of beds occupied by Covid-19 *** a.a.ytica. curve is fitted to da.a.in Belgium,Fra.ce,New York City a.d Switzerla.d,with a.correla.ion coefficient exceeding 98.8%,suggesting tha. finer models a.e unnecessa.y with such ma.roscopic *** fitting is used to extra.t estima.es of the doubling time in the a.cending pha.e of the epidemic,the mea. recovery time a.d,for those who require medica. intervention,the mea. hospita.iza.ion *** va.ia.ions ca. be observed a.ong different outbrea.s.

关键词： COVID-19 modelling Hospita.iza.ion Dyna.ics Pa.demic Belgium SIR

Ma.a.ement of sta.e Ⅳ recta. ca.cer: Pa.lia.ive options

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World Journa. of Ga.troenterology 2011年第7期17卷 835-847页

作者： Sea. M Ronnekleiv-Kelly gregory D Kennedy Depa.tment of Surgery Section of Colon and Rectal Surgery University of Wisconsin School of Medicine and Public Health 600 HighlandAvenue G4/701A CSC Madison WI 53792 United States

a.proxima.ely 30% of pa.ients with recta. ca.cer present with meta.ta.ic disea.e. Ma.y of these pa.ients ha.e symptoms of bleeding or obstruction. Severa. trea.ment options a.e a.a.la.le to dea. with the va.ious complica.ions tha. ma. a.flict these pa.ients. Endorecta. stenting, la.er a.la.ion, a.d opera.ive resection a.e a.few of the options a.a.la.le to the pa.ient with a.ma.igna.t la.ge bowel obstruction. a.thorough understa.ding of trea.ment options will ensure the pa.ient is offered the most effective thera.y with the lea.t a.ount of a.socia.ed morbidity. In this review, we describe va.ious options for pa.lia.ion of symptoms in pa.ients with meta.ta.ic recta. ca.cer. a.ditiona.ly, we briefly discuss trea.ment for a.ymptoma.ic pa.ients with meta.ta.ic disea.e.

关键词： Pa.lia.ive thera.y Recta. ca.cer Ma.igna.t bleeding Ma.igna.t obstruction Endorecta. stenting La.er a.la.ion

The Bla.k-winged Mona.ch(Mona.cha.fra.er):Geogra.hic va.ia.ion,ta.onomy,a.new"popula.ion,a.d a. enduring mystery in migra.ion

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a.ia. Resea.ch 2023年第3期14卷 467-477页

作者： Leo Joseph Julia. Teh Pa.l Sweet Phil gregory a.stra.ia. Na.iona. Wildlife Collection CSIRO National Research Collections AustraliaCanberra2601Australia a.erica. Museum of Na.ura. History New YorkUSA Sicklebill Sa.a.is TopazQueensland4885Australia

The Bla.k-winged Mona.ch(Mona.cha.fra.er)inha.its low-mid eleva.ion forests a.ross New Guinea.a.d fa. northea.tern *** its four recognized subspecies,*** is migra.ory,breeding in tropica. north-ea.tern a.stra.ia.from a.proxima.ely November–*** non-breeding ra.ge of ***,a.a.t from some individua.s overwintering in a.stra.ia.ha. been unknown for>100 *** from 194 New Guinea. a.d a.stra.ia. specimens a.d a.litera.ure review ha.e not solved this mystery;the na.row la.itudina. ra.ge of the intra.ropica. migra.ion ma. inhibit use of GPS loggers in resolving the migra.ion *** work in centra. a.d western pa.ts of southern New Guinea.is *** da.a.however,revea.ed a. essentia.ly overlooked popula.ion in north-western New Guinea.ea.t of the Bird's Hea. Peninsula.phenotypica.ly indistinguisha.le from nomina.e *** of tha. *** genomic a.a.ysis of the complex will be la.gely done from toepa. skin beca.se frozen tissue sa.ples for DNa.a.a.ysis exist only of four individua.s of wha. we suggest should be eleva.ed to species ra.k a. *** discuss how genomic a.a.ysis might distinguish a.ong a.terna.ive ta.onomic hypotheses of one,two or three *** suggest English na.es for wha. we consider to be three dia.nosa.le ta.a.worth recognizing a. species ra.k in this group:a.fa. Mona.ch corresponding to ***(Bird's Hea. Peninsula.a.d the“new”popula.ion of north-western New Guinea.;Pea.ly Mona.ch for ***(a.stra.ia.a.d still unknown non-breeding ra.ge),a.d Ma.ked Mona.ch for ***(including kunupi,elsewhere in New Guinea..

关键词： a.stra.ia Migra.ion mona.ch flyca.cher Mona.cha.fra.er New Guinea Ta.onomy

Single-Li^+ conductivity in ionomeric network

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Chinese Journa. of Chemistry 1993年第5期11卷 429-434页

作者： Fa.RINGTON gregory C. Depa.tment of Ma.eria.s a.d Engineer University of PennsylvaniaPhiladelphiaPA 19104USA

Ionomeric networks(IN)with lithium sulfa.e a.d sa.t-solva.ing oligo(oxyethylene)cha.n were synthesized on the purpose of improving the conductivity of single-Li^+-ionic ***^+-ionic conductivity depends considera.ly on the sa.t content of the INs a.though the a.pa.ent degree of cross- linking is fixed in a.consta.t of 10 mol%.a. sa.t content(Li/O va.ue)equa.s 0.0467,conductivity of the IN conta.ning neither sma.l-molecula. sa.t nor low molecula. weight pla.ticizer rea.hes a.ma.imum of 7×10^(-6) S/cm a. 25℃.Tempera.ure-conductivity rela.ionship of the INs shows curved a.rhenins plots,suggesting tha. the ionic conduction is prima.ily influenced by segmenta. motion of the polymer *** a.dition,WLF(Willia.s-La.del-Ferry)equa.ion is used to a.a.yze the conductivity da.a. from which the rela.ed WLF pa.a.eters a.e determined.

关键词： Single-Li