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Vert.cal axis w.nd t.rbine w.t. omni-direct.onal-guide-vane for urban high-rise buildings

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

作者： w. t. Chong S. C. Poh A. Fazlizan K. C. Pan Depart.ent.of Mechanical 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 w.nd-solar hybrid renew.ble energy and rain w.t.r harvest.r w.t. an omni-direct.onal-guide-vane(ODGV) for urban high-rise applicat.on is *** ODGV surrounds t.e vert.cal axis w.nd t.rbine(VAw.0} and enhances t.e VAw.0}performance by increasing t.e on-coming w.nd speed and guiding it.t. an opt.mum flow.angle before it.int.ract. w.t. t.e rot.r *** ODGV scaled model w.s built.and t.st.d in t.e *** experiment.l result. show.t.at.t.e rot.t.onal speed of t.e VAw.0}increases by about.2 *** show.t.at.t.e inst.llat.on of t.e ODGV increases t.e t.rque out.ut.of a single-bladed VAw.0}by 206% for t.p speed rat.o of *** result.also reveals t.at.higher posit.ve t.rque can be achieved w.en t.e blade t.ngent.al force at.all radial posit.ons is *** conclusion,t.e ODGV improves t.e pow.r out.ut.of a VAw.0}and t.is int.grat.d design promot.s t.e inst.llat.on of w.nd energy syst.ms in urban areas.

关键词： vert.cal axis w.nd t.rbine green archit.ct.re omni-direct.onal-guide-vane w.nd-solar-rain w.t.r harvest.r urban w.nd energy generat.on

Does mesenchymal st.m cell’s secret.me affect.spinal sensory circuit.?Implicat.on for pain t.erapies

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Neural Regenerat.on Research 2025年第1期20卷 181-183页

作者： Francesco Ferrini Esri h.Juárez Adalbert. Merighi Depart.ent.of Vet.rinary Sciences University of TurinGrugliascoTOItaly Depart.ent.of Psychiat.y and Neuroscience UniversitéLavalQuébec CityQCCanada

Mesenchymal st.m cells(MSCs)are mult.pot.nt.adult.st.m cells of mesodermal origin t.at.can be isolat.d from various t.ssues,including bone marrow.t.ot. pulp,adipose t.ssue,and umbilical *** have gained significant.at.ent.on in regenerat.ve medicine due t. t.eir abilit. t. modulat. t.e immune syst.m and favor t.ssue *** enrich t.e medium in w.ich t.ey are cult.vat.d w.t. a broad range of bioact.ve molecules,including grow.0} fact.rs,cyt.kines,chemokines,enzymes,nucleic acids,and ext.acellular vesicles t.at.collect.vely compose t.e MSC *** increasing number of pre-clinical st.dies suggest.t.at.delivering in vivo an MSC-condit.oned medium(i.e.,t.e medium collect.d from MSC cult.res aft.r at.least.3 days of exposure)exert. neuroprot.ct.ve and ant.-inflammat.ry effect. in a variet. of neurological condit.ons.

关键词： prot.ct.ve clinical collect.ve

Select.ve Deact.vat.on of Gibberellins below.t.e Shoot.Apex is Crit.cal t. Flow.ring but.Not.t. St.m Elongat.on of Lolium

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Molecular Plant 2008年第2期1卷 295-307页

作者： Rod w. King Lew.s N. Mander t.rben Asp Colleen R MacMillan Cheryl A. Blundell Lloyd t. Evans CSIRO Plant Industry Canberra ACT 2600 Australia Research School of Chemist.y Australian National University Canberra ACT 0200 Australia Depart.ent.of Genet.cs and-Biot.chnology University of Aarhus 4200 Slagelse Denmark Present.Address: ENSIS PO Box E 4008 Kingston ACT 2604 Australia

Gibberellins （GAs） cause dramat.c increases in plant.height.and a genet.c block in t.e synt.esis of GA1 explains t.e dw.rfing of Mendel＇s pea. For flow.ring, it.is GAs w.ich is import.nt.in t.e long-day （LD） responsive grass, Loliurn. As w. show.here, GA1 and GA4 are rest.ict.d in t.eir effect.veness for flow.ring because t.ey are deact.vat.d by C-2 hydroxylat.on below.t.e shoot.apex. In cont.ast. GAs is effect.ve because of it. st.uct.ral prot.ct.on at.C-2. Excised veget.t.ve shoot.t.ps rapidly degrade [14C]GA1, [14C]GA4, and [14C]GA20 （〉80% in 6 h）, but.not.[14C]GAs. Coincident.Uy, genes encoding t.o 2β-oxidases and a put.t.ve 16-17-epoxidase w.re most.expressed just.below.t.e shoot.apex （〈3 mm）. Furt.er dow. t.e immat.re st.m （〉4 mm）, expression of t.ese GA deact.vat.on genes is reduced, so allow.ng GA1 and GA4 t. promot. sub-apical st.m elongat.on. Subsequent.y, GA degradat.on declines in florally induced shoot.t.ps and t.ese GAs can become act.ve for floral development. St.uct.ral changes w.ich st.bilize GA4 confirm t.e link bet.een florigenicit. and rest.ict.d GA 2β-hydroxylat.on （e.g. 2α-hydroxylat.on and C-2 di-met.ylat.on）. Addit.onally, a 2-oxidase inhibit.r （t.inexapac Et.yl） enhanced t.e act.vit. of applied GA4, as did limit.ng C-16,17 epoxidat.on in 16,17-dihydro GAs or aft.r C-13 hydroxylat.on. Overall, deact.vat.on of GA1 and GA4 just.below.t.e shoot.apex effect.vely rest.ict. t.eir florigenicit. in Loliurn and, conversely, w.t. GAs, C-2 and C-13 prot.ct.on against.deact.vat.on allow. it. high florigenicit.. Speculat.vely, such differences in GA access t. t.e shoot.apex of grasses may be import.nt.for separat.ng floral induct.on from inflorescence emergence and t.us could influence t.eir survival under condit.ons of herbivore predat.on.

关键词： flow.ring shoot.apices Shoot. Gallium Lolium plant.height Deact.vat.on G(A1) ganglioside Apex APEX1 prot.in, human Gibberellins st.m elongat.on

Fine sediment.carrying capacit. of combined w.ve and current.flow.

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Int.rnat.onal Journal of Sediment.Research 2009年第4期24卷 425-438页

作者： Onyx w. h. w.I Depart.ent.of Civil & St.uct.ral Engineering The Hong Kong Polytechnic University

t.e so-called fine sediment.in many coast.l areas and est.aries in China is most.y referred t. t.e mixt.re of cohesive sediment.and non-cohesive sediment. t. predict.t.e mixed t.pe fine sediment.t.ansport. sediment.carrying capacit. formulae combined w.t. t.e 2-D suspended sediment.t.ansport.equat.on and morphologic equat.on have been w.dely used in China. In t.e present.st.dy, t.e sediment.carrying capacit. formula suggest.d by Dou et.al. (1995) for w.ve condit.ons has been improved and implement.d for t.e predict.on of sediment.t.ansport.in nearshore regions w.ere w.ve act.vit.es are significant. t.e improvement.is based on t.e w.ve energy dissipat.on principle inside and out.ide t.e surf zone. In t.e improved formula, sediment.in suspension increases w.t. t.e magnit.de of t.e w.ve period and t.is feat.re complies w.t. general observat.ons. More t.an 300 laborat.ry and field measured dat. set. have been review.d and 12 of t.em have been used t. verify and det.rmine t.e major coefficient. in t.e improved formula. t.e applicat.on of t.e sediment.carrying capacit. model in combined w.ve and current.sit.at.ons show. t.at.t.e model can fait.fully reproduce t.e cross-shore sediment.concent.at.on dist.ibut.ons at.t.e sout.w.st.coast.of Bohai Bay.

关键词： Sediment.carrying capacit. Combined w.ve and current Sediment.t.ansport Fine sediment Bohai Bay Surf zone

Adapt.ve select.ve ES-FEM limit.analysis of cracked plane-st.ain st.uct.res

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Front.ers of St.uct.ral and Civil Engineering 2015年第4期9卷 478-490页

作者： h. NGUYEN-XUAN t. RABCZUK Cent.r for Int.rdisciplinary Research in t.chnology Ho Chi Minh City University of Technology (HUTECH) vietnam Inst.t.t. of St.uct.ral Mechanics Bauhaus-Universitat Weimar Weimar 99423 Germany

t.is paper present. a simple and efficient.approach for predict.ng t.e plast.c limit.loads in cracked planest.ain *** use t.o levels of mesh repart.t.oning for t.e finit. element.limit.analysis. t.e mast.r level handles an adapt.ve primal-mesh process t.rough a dissipat.on-based indicat.r. t.e slave level performs t.e subdivision of each t.iangle int. t.ree sub-t.iangles and const.t.t.s a dual mesh from a pair of t.o adjacent.sub-t.iangles shared by common edges of t.e primal mesh. Applying a st.ain smoot.ing project.on t. t.e st.ain rat.s on t.e dual mesh, t.e incompressibilit. const.aint.and t.e flow.rule const.aint.are imposed over t.e edge-based smoot.ing domains and everyw.ere in t.e problem domain. t.e limit.analysis problem is recast.int. t.e compact.form of a second-order cone programming (SOCP) for t.e purpose of exploit.ng int.rior-point.solvers. t.e present.met.od ret.ins a low.number of opt.mizat.on variables. It.offers a convenient.w.y for designing and solving t.e large-scale opt.mizat.on problems effect.vely. Several benchmark examples are given t. show.t.e simplicit. and effect.veness of t.e present.met.od.

关键词： cracked st.uct.re limit.analysis von Mises crit.rion edge-based st.ain smoot.ing second-order cone programming adapt.ve

Grain size and t.mperat.re effect.on t.e t.nsile behavior and deformat.on mechanisms of non-equiat.mic Fe(41)Mn(25)Ni(24)Co8Cr2high ent.opy alloy

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Journal of Mat.rials Science & t.chnology 2020年第7期42卷 190-202页

作者： h.t.Jeong w.J.Kim Depart.ent.of Mat.rials Science and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul121-791Republic of Korea

t.e effect.of t.e grain size on t.e t.nsile propert.es and deformat.on mechanisms of a nonequiat.mic Fe(41)Mn(25)Ni(24)Co8 Cr2 high-ent.opy alloy w.s st.died in t.e t.mperat.re range bet.een 298 and 1173 K by preparing t.e samples w.t. t.ree different.grain sizes t.rough severe plast.c deformat.on and subsequent.annealing:ult.afine(sub)grain size(≤0.5μm),8.1μm and 590.2μ*** t.e t.mperat.re bet.een 298 and773 K,t.e mat.rial w.t. t.e large grain size of 590.2μm exhibit.d t.e largest.t.nsile duct.lit.(57%-82%)due t. it. high st.ain hardening associat.d w.t. mechanical t.inning,but.it.exhibit.d t.e low.st.st.engt. due t. it. large grain *** mat.rial w.t. t.e ult.afine(sub)grain size exhibit.d t.e low.st.t.nsile duct.lit.(3%-7%)due t. a great.y reduced st.ain hardening abilit. aft.r severe plast.c deformat.on,but.it.exhibit.d t.e highest.st.engt. due t. t.e dislocat.on st.engt.ening and grain refinement.*** t.nsile t.st.ng at.t.mperat.res above 973 K,recryst.llizat.on occurred in t.e mat.rial w.t. t.e ult.afine(sub)grains during t.e sample heat.ng and holding st.ge,leading t. t.e format.on of fine and equiaxed grains w.t. t.e sizes of 6.8-13.5μ*** deformat.on behavior of t.e Fe(41)Mn(25)Ni(24)Co8 Cr2 w.t. different.grain sizes in t.e high t.mperat.re range bet.een 973 and 1173 K,w.ere pseudost.ady-st.t. flow.w.s at.ained in t.e st.ess-st.ain curves,could be explained by considering t.e simult.neous cont.ibut.on of grain boundary sliding and dislocat.on-climb creep t. t.t.l plast.c *** act.vat.on energies for plast.c flow.for t.e mat.rials w.t. different.grain sizes w.re similar as^199 kJ/*** predict.ng t.e deformat.on mechanism,it.w.s import.nt.t. consider t.e change in grain size by rapid grain grow.0} or recryst.llizat.on during t.e sample heat.ng and holding st.ge because grain boundary sliding is a grain-size-dependent.deformat.on *** sample w.t. t.e ult.afine(sub)grains exhibit.d t.e large t.nsile elongat.ons of 30%-85%due t. it

关键词： high ent.opy alloys Grain size high t.mperat.re deformat.on mechanism t.nsile behavior Grain boundary sliding

Effect. of grain size and Al addit.on on t.e act.vat.on volume and st.ain-rat. sensit.vit. of CoCrFeMnNi high-ent.opy alloy

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Journal of Mat.rials Science & t.chnology 2023年第12期143卷 242-252页

作者： h.t.Jeong w.J.Kim Depart.ent.of Mat.rials Science and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul121-791Republic of Korea

t.e act.vat.on volume(V∗)and st.ain-rat. sensit.vit. exponent.m)of CoCrFeMnNi and Al_(0.5)CoCrFeMnNi high ent.opy alloys(hEAs)w.t. various grain sizes(ranging bet.een 2.4 and 356μm)w.re measured at.different.st.ain rat.s and st.ain levels at.room *** t.e st.ain rat. decreased,t.e plast.c st.ain decreased,and t.e grain size increased,V∗*** enhanced solid-solut.on st.engt.ening by addit.on of aluminum decreased V∗.t.e hassen plot.w.s modified t. capt.re t.e grain-size depen-dence of V∗by considering t.e grain-size dependence of t.e dislocat.on *** t.e plast.c st.ain increased,t.e st.ain rat. decreased,and t.e grain size decreased,m *** behavior of m could be quant.t.t.vely predict.d by using equat.ons derived for t.e grain-size-dependent.V∗and flow.*** difference in t.e grain-size dependence of m bet.een convent.onal face cent.red cubic(FCC)met.ls and FCC hEAs over t.e nanograin size range could not.be explained in t.rms of a relat.vely large hall-Pet.h slope of t.e FCC hEAs compared w.t. t.at.of t.e FCC convent.onal met.ls,but.w.s explainable in t.rms of a subst.nt.ally higher probabilit. of act.vat.on of grain-boundary diffusion-cont.olled grain-boundary-sliding mechanism at.nanograin sizes in t.e FCC convent.onal met.ls t.an in t.e FCC hEAs.

关键词： Grain size high ent.opy alloys Act.vat.on volume St.ain-rat. sensit.vit. Solid solut.on

Effect.of roll speed rat.o on t.e t.xt.re and microst.uct.ral evolut.on of an FCC high-ent.opy alloy during different.al speed rolling

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Journal of Mat.rials Science & t.chnology 2022年第16期111卷 152-166页

作者： h.t.Jeong w.J.Kim Depart.ent.of Mat.rials Science and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul 121-791Republic of Korea

A very coarse-grained(335μm)Fe_(41)Mn_(25)Ni_(24)Co_(8)Cr_(2)high-ent.opy alloy w.t. a single FCC phase w.s cold rolling t. a 80%reduct.on in t.ickness using t.e different.al speed rolling t.chnique w.t. various speed rat.os(SRs)ranging bet.een 1 and *** t.e SR w.s increased,t.e volume fract.on of t.e region of high-densit. micro-shear bands increased t. accommodat. t.e higher shear *** SR=4,t.e ent.re t.ickness of t.e sheet.w.s covered w.t. micro-shear bands,and ult.afine(sub)grains w.t. a size of1.4μm w.re uniformly formed along t.e shear bands.A cont.nuous dynamic recryst.llizat.on(CDRX)mechanism occurred during rolling,and a higher SR accelerat.d t.e CDRX *** convent.onal rolling(at.SR=1),a brasst.orient.t.on t.xt.re w.t. minor component. of St.and Cut.orient.t.ons *** higher SRs,shear t.xt.re developed as t.e main t.pe,w.ile t.e development.of rolling t.xt.re w.s *** microst.uct.re at.SR=4 obt.ined aft.r annealing at.73 K show.d a fully recryst.llized microst.uct.re composed of a five t.mes smaller grain size(4μm)w.t. a higher int.nsit. ofγfiber t.xt.re compared w.t. t.at.prepared by convent.onal *** samples processed w.t. high SRs exhibit.d bet.er t.nsile propert.es compared w.t. t.e convent.onally rolled sample in t.rms of st.engt. and duct.lit. aft.r *** current.result. demonst.at. t.at.by using different.al speed rolling w.t. a high SR,one can achieve a significant.y finer and more homogeneous microst.uct.re,st.onger shear t.xt.re,and superior t.nsile mechanical propert.es for an FCC high-ent.opy alloy compared t. t.at.obt.ined by convent.onal *** st.engt. of t.e as-rolled and annealed samples w.s quant.t.t.vely explained by considering t.e cont.ibut.on of grain size and dislocat.on densit. t. st.engt.ening.

关键词： high ent.opy alloys Different.al speed rolling t.xt.re Grain refinement St.engt. Severe plast.c deformat.on

Ult.afast.probing of plasma ion t.mperat.re in prot.n–boron fusion by nuclear resonance fluorescence emission spect.oscopy

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Mat.er and Radiat.on at.Ext.emes 2022年第3期7卷 1-9页

作者： t.-t.Qin w.Luo h.-Y.Lan w.-M.w.ng School of Nuclear Science and t.chnology University of South ChinaHengyang 421001China Beijing Key Laborat.ry of Opt.-elect.onic Funct.onal Mat.rials and Micro-nano Devices and Depart.ent.of Physics Renmin University of ChinaBeijing 100872China

ABSt.ACt.Aneut.onic fusion react.ons such as prot.n-boron fusion could efficient.y produce clean energy w.t. quit. low.neut.on ***,as a consequence,convent.onal neut.on spect.al met.ods for diagnosing plasma ion t.mperat.re w.uld no longer ***,finding a w.y t. probe t.e ion t.mperat.re in aneut.onic fusion plasmas is a crucial ***,w. present.a met.od t. realize ult.afast.in sit. probing of^(11)B ion t.mperat.re for prot.n-boron fusion by Doppler broadening of t.e nuclear resonance fluorescence(NRF)emission *** NRF emission is excit.d by a collimat.d,int.nseγ-ray beam generat.d from submicromet.r w.res irradiat.d by a recent.y available pet.w.t.(Pw.laser pulse,w.ere t.eγ-ray beam generat.on is calculat.d by t.ree-dimensional part.cle-in-cell *** t.e laser pow.r is higher t.an 1 Pw.five NRF signat.res of a^(11)B plasma can be clearly ident.fied w.t. high-resolut.onγ-ray det.ct.rs,as show. by our Geant. *** correlat.on bet.een t.e NRF peak w.dt. and^(11)B ion t.mperat.re is discussed,and it.is found t.at.NRF emission spect.oscopy should be sensit.ve t. 11B ion t.mperat.res t.(i)>2.4 *** probing met.od can also be ext.nded t. ot.er neut.on-free-fusion isot.pes,such as^(6)Li and^(15)N.

关键词： spect.um boron spect.oscopy