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Fronti.rs of Mechani.al Engi.eeri.g 2015年第3期10卷 287-293页

作者： Jonnathan D. SANTOS jorge i. fajardo Alvaro R. CUJi.Jai.e A. GARCi. Lui. E. GARZON Lui. M. LOPEZ Department of Mechani.al Engi.eeri.g Universidad Polit6cnicaSalesiana Elia Liut Ecuador Department of Mechani.al Engi.eeri.g Universidad PontificiaBolivariana Medellin Columbia

A polymeri. natural fi.er-rei.forced composi.e i. developed by extrusi.n and i.jecti.n moldi.g process. The shri.kage and warpage of hi.h-densi.y polyethylene rei.forced wi.h short natural fi.ers of Guadua angusti.oli. Kunth are analyzed by experi.ental measure- ments and computer si.ulati.ns. Autodesk Moldflow and Soli. Works are employed to si.ulate both volumetri. shri.kage and warpage of i.jected parts at di.ferent confi.urati.ns： 0wt.%, 20wt.%, 30wt.% and 40 wt.% rei.forci.g on shri.kage and warpage behavi.r of polymer composi.e. Become evi.ent the restri.ti.e effect of rei.forci.g on the volumetri. shri.kage and warpage of i.jected parts. The results i.di.ate that volumetri. shri.kage of natural composi.e i. reduced up to 58% wi.h fi.er i.creasi.g, whereas the warpage shows a reducti.n form 79% to 86% wi.h major fi.er content. These results suggest that i. i. a hi.hly benefi.i.l use of natural fi.ers to i.prove the assembly properti.s of polymeri. natural fi.er-rei.forced composi.es.

关键词： bi.composi.e natural fi.er shri.kage,si.ulati.n warpage

Corrosi.n resi.tance of pulsed laser modi.i.d AZ31 Mg alloy surfaces

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Journal of Magnesi.m and Alloys 2022年第3期10卷 819-832页

作者： S.fajardo L.Mi.uélez M.A.Arenas J.de Damborenea i.Llorente S.Feli. Department of Surface Engi.eeri.g Corrosion and DurabilityNational Centre for Metallurgical Research(CENIM-CSIC)Madrid 28040Spain

The effect of laser surface melti.g on the corrosi.n resi.tance of AZ31 Mg alloy i. 0.1 M NaCl soluti.n was i.vesti.ated usi.g di.ferent laser processi.g condi.i.ns(energy densi.i.s of 14 and 17 J cm^(-2)).Laser treatment i.duced rough surfaces pri.ari.y composed of oxi.i.ed speci.s of *** analysi. revealed that the surface concentrati.n of Al i.creased si.ni.i.antly as a consequence of *** i.pedance spectroscopy showed that the laser treatment remarkably i.creased the polari.ati.n resi.tance of the AZ31 Mg alloy and i.duced a passi.e-li.e regi.n of about 100 mV,as determi.ed by potenti.dynami. *** of the results obtai.ed provi.e soli. evi.ence that wi.hi. the i.mersi.n ti.es used i. thi. study,LSM treatment i.creased the corrosi.n resi.tance of AZ31 Mg alloy under open ci.cui. condi.i.ns and anodi. polari.ati.n.

关键词： Mg alloys laser surface melti.g(LSM) Electrochemi.al i.pedance Potenti.dynami. polari.ati.n corrosi.n resi.tance.

Si.-day measurement of si.e-resolved i.door fluorescent bi.aerosols of outdoor ori.i. i. an offi.e

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Parti.uology 2017年第2期15卷 161-169页

作者： Yangyang Xi. Oscar A. fajardo Wei.huo Yan Bi. Zhao Ji.gkun Ji.ng Department of Bui.di.g Sci.nce School of Architecture Tsinghua University Beijing 100084 China Bei.i.g Key Laboratory oflndoorAi. Quali.y Evaluati.n and Control Tsinghua University Beijing 100084 China State Key Joi.t Laboratory of Envi.onment Si.ulati.n and Polluti.n Control School of Environment Tsinghua University Beijing 100084 China State Envi.onmental Protecti.n Key Laboratory of Sources and Control of Ai. Polluti.n Complex Beijing 100084 China

i.door ai.borne bi.aerosols of outdoor ori.i. play an i.portant role i. determi.i.g the exposure of humans to bi.aerosols because people spend most of thei. ti.e i.doors. However, there are few studi.s focusi.g on i.door bi.aerosols ori.i.ati.g from outdoors. i. thi. study, i.door versus outdoor si.e-resolved concentrati.ns and parti.le asymmetry factors of ai.borne fluorescent bi.aerosols i. an offi.e room were measured conti.uously for 6 days （144 h） usi.g a fluorescent bi.aerosol detector. The wi.dows and door of thi. room were closed to ensure that there was only ai. i.fi.trati.n; moreover, any human acti.i.i.s were ceased duri.g sampli.g to i.hi.i. effects of i.door sources. We focused on fi.e parti.les, si.ce few coarse parti.les enter i.door envi.onments, when wi.dows and doors are closed. Both i.door and outdoor fluorescent bi.aerosol si.e di.tri.uti.ns were fi. wi.h two-mode lognormal di.tri.uti.ns （i.door R2 = 0.935, outdoor R2 = 0.938）. Asymmetry factor di.tri.uti.ns were also fi. wi.h lognormal di.tri.uti.ns （i.door R2 = 0.992, outdoor R2 = 0.992）. Correlati.ns between i.door and outdoor fluorescent bi.aerosol concentrati.ns show si.ni.i.ant concentrati.n-attenuati.n and a ti.e lag duri.g the study peri.d. A two-parameter, semi.empi.i.al model was used to predi.t concentrati.ns of i.door fluorescent bi.aerosols of outdoor ori.i.. The measured and predi.ted concentrati.ns had a li.ear relati.nshi. for the studi.d si.e fracti.ns, wi.h an R2 for all si.e fracti.ns of larger than 0.83.

关键词： Fluorescent bi.aerosols i.door ai. Outdoor ai. Waveband i.tegrated bi.aerosol sensor(Wi.S)Parti.le si.e di.tri.uti.ns Concentrati.ns

Development and postnatal neurogenesi. i. the reti.a: a compari.on between altri.i.l and precoci.l bi.d speci.s

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Neural Regenerati.n Research 2021年第1期16卷 16-20页

作者： Guadalupe Álvarez-Hernán José Antoni. de Mera-Rodríguez Yolanda Gañán jorge Solana-fajardo Gervasi. Martín-Parti.o Joaquín Rodríguez-León Javi.r Franci.co-Morci.lo Área de Bi.logía Celular Departamento de AnatomíaBiología Celular y ZoologíaFacultad de CienciasUniversidad de ExtremaduraBadajozSpain Área de Anatomía Humana Departamento de AnatomíaBiología Celular y ZoologíaFacultad de MedicinaUniversidad de ExtremaduraBadajozSpain Servi.i. de Oftalmología Complejo Hospitalario Universitario de BadajozBadajozSpain

The vi.ual system i. affected by neurodegenerati.e di.eases caused by the degenerati.n of speci.i. reti.al neurons,the leadi.g cause of i.reversi.le bli.dness i. *** vertebrate phylogeny,the reti.a has two ki.ds of speci.li.ed ni.hes of consti.uti.e neurogenesi.:the reti.al progeni.ors located i. the ci.cumferenti.l margi.al zone and Müller *** proli.erati.e acti.i.y i. the reti.al progeni.ors located i. the ci.cumferenti.l margi.al zone i. precoci.l bi.ds such as the chi.ken,the commonest bi.d model used i. developmental and regenerati.e studi.s,i. very *** regi.n adds only a few reti.al cells to the peri.heral edge of the reti.a duri.g several months after hatchi.g,but does not seem to be i.volved i. reti.al regenerati.n.Müller cells i. the chi.ken reti.a are not proli.erati.e under physi.logi.al condi.i.ns,but after acute damage some of them undergo a reprogrammi.g event,dedi.ferenti.ti.g i.to reti.al stem cells and generati.g new reti.al ***,regenerati.e response after i.jury occurs wi.h low effi.i.ncy i. the precoci.l avi.n *** contrast,i. has recently been shown that neurogenesi. i. i.tense i. the reti.a of altri.i.l bi.ds at *** parti.ular,abundant proli.erati.e acti.i.y i. detected both i. the ci.cumferenti.l margi.al zone and i. the outer half of the i.ner nuclear ***,stem cell ni.hes are very acti.e i. the reti.a of altri.i.l *** more extensi.e research i. needed to assess the potenti.l of proli.erati.g cells i. the adult reti.a of altri.i.l bi.ds,i. emerges as an attracti.e model for studyi.g di.ferent aspects of neurogenesi. and neural regenerati.n i. vertebrates.

关键词： altri.i.l bi.ds ci.cumferenti.l margi.al zone Müller gli. postnatal neurogenesi. precoci.l regenerati.n reti.ogenesi.

A Two-Player Coali.i.n Cooperati.e Scheme for the Bodyguard Allocati.n Problem

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Journal of Computer Sci.nce & Technology 2018年第4期33卷 823-837页

作者： Jose Alberto Fernandez-Zepedu Dani.l Brubeck-Salcedo Dani.l fajardo-Delgado Hector Zatarai.-Aceves Department of Computer Sci.nce Center for Scientific Research and Higher Education of Ensenada Ensenada BC 22860 Mexico Department of Systems and Computati.n Instituto Technol6gico de Ciudad Guzmdn Guzmdn JAL 49100 Mexico

We address the bodyguard allocati.n problem （BAP）, an opti.i.ati.n problem that i.lustrates the confli.t of i.terest between two classes of processes wi.h contradi.tory preferences wi.hi. a di.tri.uted system. Whi.e a class of processes prefers to mi.i.i.e i.s di.tance to a parti.ular process called the root, the other class prefers to maxi.i.e i.; at the same ti.e, all the processes seek to bui.d a communi.ati.n spanni.g tree wi.h the maxi.um soci.l welfare. The two state-of-the-art algori.hms for thi. problem always guarantee the generati.n of a spanni.g tree that sati.fi.s a condi.i.n of Nash equi.i.ri.m i. the system; however, such a tree does not necessari.y produce the maxi.um soci.l welfare. i. thi. paper, we propose a two-player coali.i.n cooperati.e scheme for BAP, whi.h allows some processes to perturb or break a Nash equi.i.ri.m to fi.d another one wi.h a better soci.l welfare. By usi.g thi. cooperati.e scheme, we propose a new algori.hm called FFC-BAPs for BAP. We present both theoreti.al and empi.i.al analyses whi.h show that thi. algori.hm produces better quali.y approxi.ate soluti.ns than former algori.hms for BAP.

关键词： bodyguard allocati.n problem coali.i.nal game graph algori.hm Nash equi.i.ri.m

Extended Modules and Ore Extensi.ns

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Communi.ati.ns i. Mathemati.s and Stati.ti.s 2016年第2期4卷 189-202页

作者： Vi.cheslav Artamonov Oswaldo Lezama Wi.li.m fajardo Moscow State Uni.ersi.y MoscowRussia Uni.ersi.ad Naci.nal de Colombi. BogotaColombia

i. thi. paper,we study extended modules for a speci.l class of *** wi.l assume that R i. a ri.g and A wi.l denote the Ore extensi.nA:=R[X1,...,xn;σ]for whi.hσi. an automorphi.m of R,xi.j=xjxi.and xi.=σ(r)xi.for every 1i.j≤*** some extra condi.i.ns over the ri.g R,wewi.l prove Vaserstei.'s,Qui.len's patchi.g,Horrocks',and Qui.len-Susli.'s theoremsfor thi. type of non-commutati.e ri.gs.

关键词： Extended modules and ri.gs Qui.len-Susli.'s methods Ore extensi.ns

Li.hti.g,colour and geometry:Whi.h has the greatest i.fluence on students’cogni.i.e processes?

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Fronti.rs of Archi.ectural Research 2023年第4期12卷 575-586页

作者： Marıa Lui.a Nole fajardo Juan Lui. Hi.uera-Truji.lo Carmen Lli.ares i.sti.uto Uni.ersi.ari. de i.vesti.aci.´n en Tecnologı´a Centrada en el Ser Humano(HUMAN-tech) Universitat Polite`cnica de Vale`nciaValencia 46022Spain School of Archi.ecture Art and DesignTecnologico de MonterreyMonterrey 64849Mexico

Many studi.s have analysed the effects that desi.n elements,such as li.hti.g and colour,have on students’cogni.i.e *** analyses,whi.e provi.i.g useful i.formati.n,do not allow researchers to compare the effects of multi.le desi.n *** objecti.e of the present study i. to analyse the relati.e i.fluence of li.hti.g,colour and geometry on attenti.n and memory,the mai. cogni.i.e functi.ns that underli. learni.g,and on *** a controlled,vi.tual reali.y(VR)-based experi.ent,200 uni.ersi.y students(100 male/100 female)performed attenti.n,memory and preference tests i. classrooms wi.h di.ferent confi.urati.ns of li.hti.g(colour temperature and i.lumi.ance),colour(saturati.n and hue)and geometry(hei.ht and wi.th).The results i.enti.i.d si.ni.i.ant gender-based di.ferences,whi.h demonstrates the need to segment,by gender,samples i. thi. type of *** had the greatest i.fluence,si.ni.i.antly affecti.g males’memori.s,females’attenti.n and the preferences of both *** was also an i.fluenti.l element,si.ni.i.antly affecti.g females’attenti.n,whi.e geometry was the least ***,i. should be hi.hli.hted that attenti.n was the metri. most sensi.i.e to desi.n *** results may be of i.terest to archi.ects,i.teri.r desi.ners and engi.eers who wi.h to create classrooms that sati.fy students’psychologi.al needs.

关键词： Classroom desi.n Memory Attenti.n Preference Vi.tual classroom

Absence of hi.h ampli.ude propagati.g contracti.ns i. subjects wi.h chroni. spi.al cord i.jury

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World Journal of Gastroenterology 2010年第43期16卷 5435-5439页

作者： Hanumantha R Ancha Noel R fajardo Wi.li.m A Bauman Alan S Rosman Mari.ella Galea Graham Creasey Mark A Korsten Rehabi.i.ati.n Research and Development Center of Excellence for Medi.al Consequences of Spi.al Cord i.jury James J. Peters VA Medical Center Medi.al Servi.e James J. Peters VA Medical Center Department of Medi.i.e Mount Sinai School of Medicine Department of Rehabi.i.ati.n Medi.i.e Mount Sinai School of Medicine Spi.al Cord i.jury Servi.e James J. Peters VA Medical Center Spi.al Cord i.jury Servi.e VA Medical Center

Ai.: To i.vesti.ate the presence or absence of hi.h ampli.ude propagati.g contracti.ns (HAPC), as well as the other measures of coloni. moti.i.y, i. persons wi.h spi.al cord i.jury (SCi.. METHODS: Prolonged coloni. ambulatory manometri. studi.s were performed on 14 male volunteers: 8 wi.h SCi.(mean age, 59 ± 13 years; mean durati.n of i.jury, 13 ± 4 years) and 6 healthy able-bodi.d controls (mean age, 57 ± 10 years). A soli.-state manometry catheter was endoscopi.ally cli.ped to the spleni. flexure. Recordi.g was performed for > 24 h after manometri. catheter placement. RESULTS: HAPC were absent i. i.di.i.uals wi.h SCi.duri.g pre-sleep, sleep, and post-sleep phases. HAPC were si.ni.i.antly i.creased after awakeni.g i. non-SCi.controls (0.8 ± 0.2 HAPC/h vs 10.5 ± 2.0 HAPC/h, P i.i.y i.dex was lower i. those wi.h SCi.than i. controls preand post-sleep (SCi.vs non-SCi. Pre-sleep, 2.4 ± 0.4 vs 8.8 ± 1.9, P i.duced depressi.n of coloni. moti.i.y was observed i. both the SCi.and non-SCi.groups (Pre-sleep vs Sleep, non-SCi. 8.8 ± 1.9 vs 2.1 ± 0.9, P i. 2.4 ± 0.4 vs 0.2 ± 0.03, P i.h the moti.i.y i.dex of those wi.h SCi.duri.g sleep not si.ni.i.antly di.ferent than that of the controls. CONCLUSi.N: HAPC were not observed i. i.di.i.uals wi.h SCi.preor post-sleep. A sleep-i.duced depressi.n i. general coloni. moti.i.y was evi.ent i. SCi.and control subjects.

关键词： Spi.al cord i.jury Neurogeni. bowel Bowel moti.i.y Hi.h ampli.ude propagati.g contracti.ns Moti.i.y i.dex

Free-space local nonseparabi.i.y dynami.s of vector modes

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Photoni.s Research 2021年第4期9卷 439-445页

作者： Xi.o-Bo Hu Benjami. Perez-Garci. Valeri. Rodríguez-fajardo Raul i.Hernandez-Aranda Andrew Forbes Carmelo Rosales-Guzmán Wang Da-Heng Collaborati.e i.novati.n Center Heilongjiang Provincial Key Laboratory of Quantum Manipulation and ControlHarbin University of Science and TechnologyHarbin 150080China Photoni.s and Mathemati.al Opti.s Group Tecnologico de MonterreyMonterrey 64849Mexico School of Physi.s University of the WitwatersrandJohannesburg 2050South Africa Centro de i.vesti.aci.nes enÓpti.a A.C.Loma del Bosque 115Colonia Lomas del campestre37150 LeónGto.Mexico

One of the most promi.ent features of quantum entanglement i. i.s i.vari.bi.i.y under local uni.ary transformati.ns,whi.h i.pli.s that the degree of entanglement or nonseparabi.i.y remai.s constant duri.g free-space propagati.n,true for both quantum and classi.ally entangled *** we demonstrate an excepti.n to thi. rule usi.g a carefully engi.eered vectori.l li.ht fi.ld,and we study i.s nonseparabi.i.y dynami.s upon free-space *** show that the local nonseparabi.i.y between the spati.l and polari.ati.n degrees of freedom dramati.ally decays to zero whi.e preservi.g the puri.y of the state and hence the global *** show thi. by numeri.al si.ulati.ns and corroborate i. *** results evi.ce novel properti.s of classi.ally entangled modes and poi.t to the need for new measures of nonseparabi.i.y for such vectori.l fi.lds,whi.e pavi.g the way for novel appli.ati.ns for customi.ed structured li.ht.

关键词： local dynami.s quantum

Publi. Space Revi.ali.ati.n i. Bogofá——A Human-Scale Ci.y

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中国园林 2006年第9期 9-13页

作者： Martha C.fajardo a Graduate Archi.ect from Colombi. Postgraduate studi.s i. Landscape Desi.n at Sheffi.ld Uni.ersi.y England.Chai. of Grupo Verde i.da.

i.TRODUCTi.N Never i. Bogotá’s hi.tory there had been so i.portant i.vestments i. publi. space as those from the past three admi.i.trati.ns wi.h thei. government programs:“Formar Ci.dad——Cultura Ci.dadana(Developi.g the ci.y——A Ci.i.en Culture)”(1995-1998) and“Por una Bogotámejor——Ci.dad a escala humana(For a Better Bogotá——A Human Scale Ci.y)”(1998-2000).“Bogotápara *** del mi.mo lado(Bogotáfor li.i.g-Everybody on the same si.e wi.h no exclusi.n)”(2000-2003).

关键词： Publi. Space Revi.ali.ati.n i. Bogof A Human-Scale Ci.y