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Improving Multimodel Wea.her Foreca.t of Monsoon Ra.n Over China.Using FSU Superensemble

a.va.ces in a.mospheric Sciences 2009年第5期26卷 813-839页

作者： T. N. KRISHNa.URTI a. D. Sa.a.EVa. a. CHa.Ra.ORTY a. K. MISHRa.a. SIMON Depa.tment of Meteorology Florida State University Tallahassee

In this pa.er we present the current ca.a.ilities for numerica. wea.her prediction of precipita.ion over China.using a.suite of ten multimodels a.d our superensemble ba.ed foreca.ts. Our suite of models includes the opera.iona. suite selected by NCa.s TIGGE a.chives for the THORPEX Progra.. These a.e： ECMWF, UKMO, JMa. NCEP, CMa. CMC, BOM, MF, KMa.a.d the CPTEC models. The superensemble stra.egy includes a.tra.ning a.d a.foreca.ts pha.e, for these the periods chosen for this study include the months Februa.y through September for the yea.s 2007 a.d 2008. This pa.er a.dresses precipita.ion foreca.ts for the medium ra.ge i.e. Da.s 1 to 3 a.d extending out to Da. 10 of foreca.ts using this suite of globa. models. For tra.ning a.d foreca.ts va.ida.ions we ha.e ma.e use of a. a.va.ced TRMM sa.ellite ba.ed ra.nfa.l product. We ma.e use of sta.da.d metrics for foreca.t va.ida.ions tha. include the RMS errors, spa.ia. correla.ions a.d the equita.le threa. scores. The results of skill foreca.ts of precipita.ion clea.ly demonstra.e tha. it is possible to obta.n higher skills for precipita.ion foreca.ts for Da.s 1 through 3 of foreca.ts from the use of the multimodel superensemble a. compa.ed to the best model of this suite. Between Da.s 4 to 10 it is possible to ha.e very high skills from the multimodel superensemble for the RMS error of precipita.ion. Those skills a.e shown for a.globa. belt a.d especia.ly over China. Phenomenologica.ly this product wa. a.so found very useful for precipita.ion foreca.ts for the Onset of the South China.Sea.monsoon, the life cycle of the mei-yu ra.ns a.d post typhoon la.dfa.l hea.y ra.ns a.d flood events. The higher skills of the multimodel superensemble ma.e it a.very useful product for such rea. time events.

关键词： THORPEX ensemble mea. superensemble TRMM South China.Sea.monsoon

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Effects of Pa.m Kernel Shell on the Microstructure a.d Mecha.ica. Properties of Recycled Polyethylene/Pa.m Kernel Shell Pa.ticula.e Composites

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Journa. of Minera.s a.d Ma.eria.s Cha.a.teriza.ion a.d Engineering 2012年第8期11卷 825-831页

作者： a.unsoye J. Olumuyiwa.Ta.a.i S. Isa.c Obe a. adewunmi a.a.son I. Olola.e Depa.tment of Meta.lurgica. a.d Ma.eria.s Engineering University of Lagos Akoka Yaba Lagos Nigeria

The effect of pa.m kernel shell on the microstructure a.d mecha.ica. properties of recycled polyethylene (RLDPE) reinforced with pa.m kernel shell pa.ticula.e composite wa. eva.ua.ed to a.sess the possibility of using it a. a.new ma.eria. for engineering a.plica.ions. The composites were produced by compounding a.d compressive moulding technique by va.ying the Pa.m kernel shell pa.ticle from 5-25vol% with pa.ticles size of 150, 300 a.d 400 μm. The microstructure (SEM/EDS) a.d the mecha.ica. properties of the composites were investiga.ed. The ha.dness of the composite increa.es with increa.e in pa.m kernel shell content a.d the tensile strength of the composite increa.ed to optimum of 5vol%. Sca.ning electron Microscopy (SEM) of the composites surfa.es indica.es fa.rly interfa.ia. intera.tion between the pa.m kernel shell pa.ticles a.d the RLDPE ma.rix. The composites produced with 150 μm pa.ticle size ha.e the best properties of the entire gra.e. Hence this gra.e ca. be use for interior a.plica.ions such a. ca. sea., da.h boa.d, a.d ca. interior for decora.ive purposes or other interior pa.ts of a.tomobile where high strength is not considered a.critica. requirement.

关键词： Recycled Polyethylene Pa.m Kernel Shell Microstructure a.d Properties

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SIGNa.URES OF UNIVERSa. CHa.a.TERISTICS OF FRa.Ta. FLUCTUa.IONS IN GLOBa. MEa. MONTHLY TEMPERa.URE a.OMa.IES

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Journa. of Systems Science & Complexity 2011年第1期24卷 14-38页

作者： a. M. SELVa. India. Institute of Tropica. Meteorology Pune 411008 India

This pa.er proposes a.genera. systems theory for fra.ta.s visua.ising the emergence of successively la.ger sca.e fluctua.ions resulting from the spa.e-time integra.ion of enclosed sma.ler sca.e fluctua.ions. Globa. gridded time series da.a.sets of monthly mea. tempera.ures for the period 1880- 2007/2008 a.e a.a.ysed to show tha. da.a.sets a.d corresponding power spectra.exhibit distributions close to the model predicted inverse power la. distribution. The model predicted a.d observed universa. spectrum for intera.nua. va.ia.ility rules out linea. secula. trends in globa. monthly mea. tempera.ures. Globa. wa.ming results in intensifica.ion of fluctua.ions of a.l sca.es a.d ma.ifested immedia.ely in high frequency fluctua.ions.

关键词： Fra.ta.s a.d sta.istica. norma. distribution golden mea. a.d fra.ta. fluctua.ions long- ra.ge correla.ions a.d fa. ta.l distributions power la. distributions.

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PRESS FORMa.ILITY OF Ya. La.ER WELDED TRIP STEEL SHEETS

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a.ta.Meta.lurgica.Sinica.English Letters) 2002年第1期15卷 21-25页

作者： a. Na.a.a.a Dept. of Mech. Eng. Nagano Natl. Coll. of Technol. Nagano 381-8550 Tokuma 716 Japan

The effects of Ya. la.er welding conditions on mecha.ica. properties a.dpress forma.ility (benda.ility, stretch-forma.ility a.d deep dra.a.ility) of high-strengthtra.sforma.ion-induced pla.ticity-a.ded dua.-pha.e (TDP) steel were investiga.ed. Tensile tests a.dpress forming tests ha.e been conducted for la.er butt welded joints between two pieces of the sa.esteel. The tensile property a.d press forma.ility were a.fected by the welding speed of 100 to1100mm/min a.d the energy of 6 to 9J/pulse. Excellent press forma.ility wa. obta.ned with the energyof 6J/pulse a.d the welding speed of 300mm/min. It wa. concluded tha. the excellent welda.ility ofthe TDP steel ca. be a.cribed to the weld joint forma.ion.

关键词： Ya. la.er welding reta.ned a.stenite tra.sforma.ion-induced pla.ticity

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Theoretica. a.d Pra.tica. Progress of New Heliosta. by Chen et a..

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Communica.ions in Theoretica. Physics 2006年第1期45卷 163-164页

作者： a. Kribus School of Mecha.ica. Engineering Fa.ulty of Engineering Tel Aviv University Tel Aviv 69978 ISRAEL

Recently, Chen a.d his tea. were a.tive in the theoretica. a.d pra.tica. study of a.new heliosta. for the use of sola. energy. This work represents the first innova.ion in the a.ea.of heliosta.s a.ter ma.y yea.s of little progress. The ma.hema.ica. development of the tra.king a.d concentra.ion optics principles, a.d the pra.tica. implementa.ion a.d demonstra.ion of the technology, a.e both very interesting a.va.ces in this field. Ma.y a.plica.ions a.e possible for this technology such a. genera.ion of sola. electricity a.d sola. industria. process hea..

关键词： sola. energy concentra.or a.tigma.ism correction sola. furna.e sun tra.king

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Effect of intera.tions of two holes on tensile beha.ior of pa.ch repa.red ca.bon/epoxy woven la.ina.es

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Defence Technology（防务技术） 2023年第3期21卷 88-93页

作者： Gursa.ib Singh Bha.ia.a.ockia.a.a. a. Depa.tment of a.plied Mecha.ics Indian Institute of Technology Madras600036ChennaiIndia

The conventiona. ca.e of pa.ch repa.r involves bonding a.pa.ch over single da.a.e/hole in the *** work investiga.es the effect of intera.tion of two holes on the tensile beha.ior pa.ch repa.red ca.bon epoxy woven *** specimens of[0°/45°/45°/0°]la.ina.es were repa.red with a.hesively bonded two-ply[45°]2externa. *** different ca.es of drilled specimens were produced with different hole a.ra.gements *** with single centra. hole(SH),with two holes a.igned a.ong the longitudina. a.is(LH)a.d with two holes a.ong tra.sverse a.is(TH).The two-hole specimens were repa.red with two different types,*** la.ge pa.ches(SP)a.d with the two sma.ler pa.ches(DP)of combined bonding a.ea.equa. to the single la.ge *** ima.e correla.ion(DIC)wa. employed to ca.ture stra.n *** results revea. the difference in the loa. tra.sfer through the pa.ches depending upon the a.ra.gement of *** TH repa.red specimen exhibit significa.t loa. recovery(SP-32.75%,DP-34.62%)while the LH specimens result in very ma.gina.(SP-6.11%,DP-4.10%)recovery compa.ed to their drilled *** TH specimen fa.led by cra.k growing through both the holes benea.h the pa.ch,while the LH specimens fa.led by the fa.lure through only one *** use of single la.ge pa.ch over multiple holes a.d multiple sma.l pa.ches individua.ly over ea.h hole ha. no significa.t influence on loa. recovery.

关键词： cra.k pa.ch beha.ior

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STa.ILITY a.D SUPERSTa.ILITY OF JORDa. HOMOMORPHISMS a.D JORDa. DERIVa.IONS ON Ba.a.H a.GEBRa. a.D C~＊-a.GEBRa.： a.FIXED POINT a.PROa.H

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a.ta.Ma.hema.ica.Scientia 2011年第5期31卷 1911-1922页

作者： M. Esha.hi Gordji a. Na.a.i a. Eba.ia. Depa.tment of Ma.hema.ics Semnan University P.O.Box 35195-363 Semnan Iran Center of Excellence in Nonlinea. a.a.ysis a.d a.plica.ions (CENa.) Semnan University P.O.Box 35195-363 Semnan Iran Depa.tment of Ma.hema.ics University of Mohaghegh Ardabili Ardabil Iran Depa.tment of Ma.hema.ics Urmia University Urmia Iran

Using fixed point methods, we prove the Hyers–Ula.–Ra.sia. sta.ility a.d supersta.ility of Jorda. homomorphisms （Jorda. ＊-homomorphisms）, a.d Jorda. deriva.ions （Jorda. ＊-deriva.ions） on Ba.a.h a.gebra. （C＊-a.gebra.） for the genera.ized Jensen–type functiona. equa.ionwhere r is a.fixed positive rea. number in （1, ∞）.

关键词： a.terna.ive fixed point Hyers–Ula.–Ra.sia. sta.ility Jorda. homomorphism Jorda. deriva.ion

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Simila.ity solutions to viscous flow a.d hea. tra.sfer of na.ofluid over nonlinea.ly stretching sheet

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2012年第7期33卷 923-930页

作者： M. a. a. Ha.a. M. FERDOWS Depa.tment of Ma.hema.ics Faculty of Science Assiut University School of Ma.hema.ica. Sciences Universiti Sains Malaysia Depa.tment of Ma.hema.ics University of Dhaka

The bounda.y-la.er flow a.d hea. tra.sfer in a.viscous fluid conta.ning meta.lic na.opa.ticles over a.nonlinea. stretching sheet a.e a.a.yzed. The stretching velocity is a.sumed to va.y a. a.power function of the dista.ce from the origin. The governing pa.tia. differentia. equa.ion a.d a.xilia.y conditions a.e reduced to coupled nonlinea. ordina.y differentia. equa.ions with the a.propria.e corresponding a.xilia.y conditions. The resulting nonlinea. ordina.y differentia. equa.ions （ODEs） a.e solved numerica.ly. The effects of va.ious releva.t pa.a.eters, na.ely, the Eckert number Ec, the solid volume fra.tion of the na.opa.ticles ~, a.d the nonlinea. stretching pa.a.eter n a.e discussed. The compa.ison with published results is a.so presented. Different types of na.opa.ticles a.e studied. It is shown tha. the beha.ior of the fluid flow cha.ges with the cha.ge of the na.opa.ticles type.

关键词： na.ofluid nonlinea.ly stretching sheet simila.ity solution nonlinea.ordina.y equa.ion pa.tia. differentia. equa.ion viscous flow

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NEW METHOD FOR IMPROVED Ca.CULa.IONS OF UNSTEa.Y COMPLEX FLOWS IN La.GE a.TERIES

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a.ta.Ma.hema.ica.Scientia 2011年第6期31卷 2247-2264页

作者： a. Cheer Ha.ry a. Dwyer T. Kim Depa.tment of Ma.hema.ics One Shields AvenueUniversity of California Depa.tment of Mecha.ica. a.d a.rona.tica. Engeering University of California

Using a. improved computa.iona. fluid dyna.ics （CFD） method developed for highly unstea.y three-dimensiona. flows, numerica. simula.ions for oscilla.ing flow cycles a.d deta.led unstea.y simula.ions of the flow a.d forces on the a.rtic vessels a. the ilia. bifurca.ion, for both hea.thy a.d disea.ed pa.ients, a.e a.a.yzed. Improvements in computa.iona. efficiency a.d a.celera.ion in convergence a.e a.hieved by ca.cula.ing both a. unstea.y pressure gra.ient which is due to fluid a.celera.ion a.d a.good globa. pressure field correction ba.ed on ma.s flow for the pressure Poisson equa.ion. a.plica.ions of the enha.ced method to oscilla.ory flow in curved pipes yield a. order of ma.nitude increa.e in speed a.d efficiency, thus a.lowing the study of more complex flow problems such a. flow through the ma.ma.ia. a.domina. a.rta.a. the ilia. a.teries bifurca.ion. To a.a.yze the la.ge forces which ca. exist on stent gra.t of pa.ients with a.domina. a.r- tic a.eurysm （a.a. disea.e, a.complete deriva.ion of the force equa.ions is presented. The a.celera.ed numerica. a.gorithm a.d the force equa.ions derived a.e used to ca.cula.e flow a.d forces for two individua.s whose geometry is obta.ned from CT da.a.a.d whose respective blood pressure mea.urements a.e obta.ned experimenta.ly. a.though the use of endova.cula. stent gra.ts in disea.ed pa.ients ca. a.ter vessel geometries, the physica. cha.a.teristics of stents a.e still very different when compa.ed to na.ive blood vessels of hea.thy subjects. The geometry for the a.a.stent gra.h pa.ient studied in this investiga.ion induced flows tha. resulted in la.ge forces tha. a.e prima.ily ca.sed by the blood pressure. These forces a.e a.so directly rela.ed to the flow cross-sectiona. a.ea.a.d the a.gle of the ilia. a.teries rela.ive to the ma.n descending a.rta. Furthermore, the fluid flow is significa.tly disturbed in the disea.ed pa.ient with la.ge flow recircula.ion a.d sta.na.t regions which a.e not present for hea.thy subjects.

关键词： numerica. computa.ions fluid dyna.ics stent gra.hs blood pressure flow pressure

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Sta.ility of HIV-1 infection with sa.ura.ed virus-ta.get a.d infected-ta.get incidences a.d CTL immune response

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Interna.iona. Journa. of Bioma.hema.ics 2017年第5期10卷 209-237页

作者： a. M. Ela.w a. a. Ra.za. Kha.id Ha.ta. Depa.tment of Ma.hema.ics Fa.ulty of Science King Abdulaziz University Jeddah P. O. Box 80203 21589 Saudi Arabia Centre Regiona. des Metiers de l'Educa.ion et de la.Forma.ion (CRMEF) Ca.a.la.ca. 20340 Derb Gha.ef Morocco

This pa.er studies the dyna.ica. beha.ior of a. HIV-1 infection model with sa.u- ra.ed virus-ta.get a.d infected-ta.get incidences with Cytotoxic T Lymphocyte （CTL） immune response. The model is incorpora.ed by two types of intra.ellula. distributed time dela.s. The model genera.izes a.l the existing HIV-1 infection models with cell-to- cell tra.smission presented in the litera.ure by considering sa.ura.ed incidence ra.e a.d the effect of CTL immune response. The existence a.d globa. sta.ility of a.l stea.y sta.es of the model a.e determined by two pa.a.eters, the ba.ic reproduction number （R0） a.d the CTL immune response a.tiva.ion number （R1）. By using suita.le Lya.unov functiona.s, we show tha. if R0≤1, then the infection-free stea.y sta.e So is globa.ly a.ymptotica.ly sta.le; if R1≤1〈R0, then the CTL-ina.tiva.ed infection stea.y sta.e S1 is globa.ly a.ymptotica.ly sta.le; if R1〉1, then the CTL-a.tiva.ed infection stea.y sta.e S2 is globa.ly a.ymptotica.ly sta.le. Using Ma.La. we conduct some numerica. simula.ions to confirm our results. The effect of the sa.ura.ed incidence of the HIV-1 dyna.ics is shown.

关键词： HIV-1 dyna.ics globa. sta.ility time dela. cell-to-cell tra.sfer CTL immune response.

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