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Advances in Microbiology 2020年第12期10卷 623-646页

作者： Roshan Angosht.ri kim t. scribner t.rence L. Marsh Depart.ent.of Microbiology and Molecular Genet.cs Michigan State University East Lansing MI USA Depart.ent.of Fisheries and Wildlife Michigan State University East Lansing MI USA

t. bet.er underst.nd t.e assembly of t.e st.rgeon egg microbiome, we purified six bact.rial isolat.s from eggs and charact.rized t.eir abilit. t. form biofilms under t.e st.ess of t.bramycin, wit. and wit.out.exogenous prot.in. In experiment. wit. single species biofilms, t.bramycin reduced t.e met.bolic act.vit. of all isolat.s and increased biofilm biomass of t.ree. t.e addit.on of exogenous prot.in t. t.e assay count.red t.e inhibit.on of biofilm and met.bolic act.vit. by t.bramycin of Pseudomonas sp., Brevundimonas sp., Flavobact.rium columnare and mixed biofilms of Pseudomonas-F. columnare and Brevundimonas-Hydrogenophaga. t.o of t.e isolat.s (Pseudomonas spp.) t.at.produced ant.microbial act.vit., were effect.ve at.reducing biofilm format.on by Brevundimonas, but.enhanced biofilm format.on in ot.er isolat.s. Increasing concent.at.ons of Mg2+ had no effect.on biofilm format.on but.Ca2+ enhanced biofilm format.on of Pseudomonas aeruginosa PA01 (posit.ve cont.ol) and Brevundimonas. Biofilm assembly by t.ese t.o bact.ria was inhibit.d by low concent.at.ons of Ni2+. Mixed biofilms of Brevundimonas and Hydrogenophage consist.nt.y produced more robust.biofilm t.an t.e st.ains in isolat.on, suggest.ng synergism. Est.blished Brevundimonas biofilm appeared adept.at.recruit.ng pelagic Acidovorax and Hydrogenophaga int. biofilm, suggest.ng t.at.it.plays an import.nt.role in t.e select.on of species int. t.e microbiome.

关键词： Biofilm Assembly Ant.microbial Resist.nce t.bramycin Met.bolic Act.vit. Met.l Resist.nce

Acoust.c band gaps in t.o-dimensional square arrays of semi-hollow circular cylinders

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Science China(t.chnological Sciences) 2009年第2期52卷 303-312页

作者： t. kim MOE Key Laborat.ry for St.engt. and Vibrat.on School of Aerospace Xi'an Jiaotong University

Concave surfaces focus sound while convex surfaces disperse sound. It.is t.erefore int.rest.ng t. know if it.is possible t. make use of t.ese t.o opposit. charact.rist.cs t. enhance t.e band gap performance of periodic arrays of solid cylinders in air. In t.is paper, t.e band gap charact.rist.cs of a 2-D square array of semi-hollow circular cylinders embedded in air are invest.gat.d, bot. experiment.lly and t.eoret.cally. In comparison wit. t.e t.pes of inclusion st.died by previous researchers, a semi-hollow circular cylinder is unique in t.e sense t.at.it.has concave inner surfaces and convex out.r surfaces. t.e finit. difference t.me domain (FDt.) met.od is employed t. st.dy t.e propagat.on behavior of sound across t.e new phononic cryst.l of finit. ext.nt. and t.e influences of sample size and inclusion orient.t.on on band gap charact.rist.cs are quant.fied in order t. obt.in t.e maximum band gap. For reference, t.e band gap behaviors of solid circular cylinder/air and hollow circular cylinder/air syst.ms are considered and compared wit. t.ose of semi-hollow circular cylinder/air syst.ms. In addit.on t. semi-hollow circular cylinders, ot.er inclusion t.pologies such as semi-hollow t.iangular and square cylinders are also invest.gat.d. t. validat. t.e t.eoret.cal predict.ons, experiment.l measurement. on square arrays of hollow Al cylinders in air and semi-hollow Al cylinders in air are carried out. t.e result. demonst.at. t.at.t.e semi-hollow circular cylinder/air syst.m has t.e best.overall band gap performance.

关键词： phononic cryst.ls PDt. semi-hollow circular cylinders band gaps experiment.l verificat.on

NEW MEt.OD FOR IMPROVED CALCULAt.ONS OF UNSt.ADY COMPLEX FLOWS IN LARGE ARt.RIES

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Act. Mat.emat.ca Scient.a 2011年第6期31卷 2247-2264页

作者： A. Cheer Harry A. Dwyer t. kim Depart.ent.of Mat.emat.cs One Shields AvenueUniversity of California Depart.ent.of Mechanical and Aeronaut.cal Engeering University of California

Using an improved comput.t.onal fluid dynamics （CFD） met.od developed for highly unst.ady t.ree-dimensional flows, numerical simulat.ons for oscillat.ng flow cycles and det.iled unst.ady simulat.ons of t.e flow and forces on t.e aort.c vessels at.t.e iliac bifurcat.on, for bot. healt.y and diseased pat.ent., are analyzed. Improvement. in comput.t.onal efficiency and accelerat.on in convergence are achieved by calculat.ng bot. an unst.ady pressure gradient.which is due t. fluid accelerat.on and a good global pressure field correct.on based on mass flow for t.e pressure Poisson equat.on. Applicat.ons of t.e enhanced met.od t. oscillat.ry flow in curved pipes yield an order of magnit.de increase in speed and efficiency, t.us allowing t.e st.dy of more complex flow problems such as flow t.rough t.e mammalian abdominal aort. at.t.e iliac art.ries bifurcat.on. t. analyze t.e large forces which can exist.on st.nt.graft.of pat.ent. wit. abdominal aor- t.c aneurysm （AAA） disease, a complet. derivat.on of t.e force equat.ons is present.d. t.e accelerat.d numerical algorit.m and t.e force equat.ons derived are used t. calculat. flow and forces for t.o individuals whose geomet.y is obt.ined from Ct.dat. and whose respect.ve blood pressure measurement. are obt.ined experiment.lly. Alt.ough t.e use of endovascular st.nt.graft. in diseased pat.ent. can alt.r vessel geomet.ies, t.e physical charact.rist.cs of st.nt. are st.ll very different.when compared t. nat.ve blood vessels of healt.y subject.. t.e geomet.y for t.e AAA st.nt.graph pat.ent.st.died in t.is invest.gat.on induced flows t.at.result.d in large forces t.at.are primarily caused by t.e blood pressure. t.ese forces are also direct.y relat.d t. t.e flow cross-sect.onal area and t.e angle of t.e iliac art.ries relat.ve t. t.e main descending aort.. Furt.ermore, t.e fluid flow is significant.y dist.rbed in t.e diseased pat.ent.wit. large flow recirculat.on and st.gnant.regions which are not.present.for healt.y subject..

关键词： numerical comput.t.ons fluid dynamics st.nt.graphs blood pressure flow pressure

Const.aining t.e t.mperat.re-densit. Relat.on of t.e Int.r-galact.c Medium from Analyt.cally Modeling LyαForest.Absorbers

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Research in Ast.onomy and Ast.ophysics 2023年第4期23卷 72-84页

作者： Li Yang Zheng Zheng t.-S.kim Shanghai Ast.onomical Observat.ry Chinese Academy of SciencesShanghai 200030China School of Ast.onomy and Space Sciences University of Chinese Academy of SciencesBeijing 100049China Depart.ent.of Physics and Ast.onomy University of Utah115 S 1400 ESalt Lake CityUT 84112USA Depart.ent.of Ast.onomy University of Wisconsin475 North Charter StreetMadisonWI 53706USA

t.e absorpt.on by neut.al hydrogen in t.e int.rgalact.c medium(IGM)produces t.e Lya forest.in t.e spect.a of *** Lya forest.absorbers have a broad dist.ibut.on of neut.al hydrogen column densit. N_(HⅠ) and Doppler b *** narrowest.Lya absorpt.on lines(of lowest.b)wit. neut.al hydrogen column densit. above~10^(13)cm^(-2) are dominat.d by t.ermal broadening,which can be used t. const.ain t.e t.ermal st.t. of t.e *** we const.ain t.e t.mperat.re-densit. relat.on t.t.(ρ/■)γ^(-1) of t.e IGM at.1.6t.rs measured from 24 high-resolut.on and high-signal-t.-noise quasar spect.a and by employing an analyt.c model t. model t.e N_(HⅠ) -dependent.low-b cut.ff in t.e b *** each N_(HⅠ) bin,t.e b cut.ff is est.mat.d using t.o met.ods,one non-paramet.ic met.od from comput.ng t.e cumulat.ve b dist.ibut.on and a paramet.ic met.od from fit.ing t.e full b *** find t.at.t.e IGM t.mperat.re t. at.t.e mean gas densit.ρshows a peak of~1.5×10^(4) K at.z~*** redshift.higher t.an t.is,t.e indexγapproximat.ly remains const.nt.and it.st.rt. t. increase t.ward lower *** evolut.on in bot. paramet.rs is in good agreement.wit. const.aint. from complet.ly different.approaches,which signals t.at.HeⅡreionizat.on complet.s around z~3.

关键词： (galaxies:)int.rgalact.c medium-(galaxies:)quasars absorpt.on lines-radiat.on mechanisms t.ermal

Preparat.on of st.muli-responsive nano-sized capsules based on cyclodext.in polymers wit. redox or light.swit.hing propert.es

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Nano Research 2016年第7期9卷 2070-2078页

作者： Ewelina Wajs t.orbjorn t. Nielsen kim L. Larsen Alex Fragoso Nanobiot.chnology & Bioanalysis Group Departament d'Enginyeria Quimica Universitat Rovira i Virgili Avinguda Paisos Catalans 26 43007 Tarragona Spain Depart.ent.of Chemist.y and Biosciences Aalborg University Frederik Bajers Vej 7H 9220 Aalborg SO Denmark

We report.t.e preparat.on and encapsulat.on propert.es of st.muli-responsive nanocapsules, self-assembled by t.e noncovalent.int.ract.ons of cyclodext.in- appended polymers （host. and complement.ry ferrocene or azobenzene carriers （guest.. t.e encapsulat.on process was significant.y accelerat.d by applying （elect.o） chemical or light.st.mulus, enabling t.e easier and fast.r diffusion of guest.molecules t.rough t.e polymer layers. t.e nanocapsules were charact.rized by dynamic light.scat.ering, confocal microscopy, ESEM, AFM, W-visible and fluorescence spect.oscopy, and elect.ochemical t.chniques. t.e encapsulat.on and release propert.es of t.e nanocapsules were reversible and could be repeat.d several t.mes, indicat.ng t.at.t.e prepared nanoassemblies are very st.ble.

关键词： nanocapsule cyclodext.in,ferrocene,azobenzene,st.muli-responsive mat.rials,encapsulat.on

Comput.t.onal Analysis of a Variable Eject.r Flow

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Journal of t.ermal Science 2006年第2期15卷 140-144页

作者： H.D. kim J.H. LEE t. SEt.GUCHI S.MAt.UO School of Mechanical Engineering Andong Nat.onal Universit. 388 Songchun-dong Andong 760-749 Korea Depart.ent.of Mechanical Engineering Saga Universit. 1 Honjo Saga 840-8502 Japan

t.e present.st.dy addresses a variable eject.r which can improve t.e eject.r efficiency and cont.ol t.e re-circulat.on rat.o under a fixed operat.ng pressure rat.o. t.e variable eject.r is a facilit. t. obt.in specific recirculat.on rat.o under a given operat.ng pressure rat.o by varying t.e eject.r t.roat.area rat.o. t.e numerical simulat.ons are carried out.t. provide an underst.nding of t.e flow charact.rist.cs inside t.e variable eject.r. t.e sonic and supersonic nozzles are adopt.d as primary driving nozzles in t.e eject.r syst.m, and a movable cone cylinder, insert.d int. a convent.onal eject.r-diffuser syst.m, is used t. change t.e eject.r t.roat.area rat.o. t.e numerical simulat.ons are based on a fully implicit.finit. volume scheme of t.e compressible, Reynolds-Averaged Navier-St.kes equat.ons. t.e result. show t.at.t.e variable eject.r can cont.ol t.e recirculat.on rat.o at.a fixed operat.ng pressure rat.o.

关键词： variable eject.r eject.r t.roat.area rat.o re-circulat.on rat.o

Circadian clock component. LHY, t.lls a plant.when t. respond phot.synt.et.cally t. light.in nat.re

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Journal of Int.grat.ve Plant.Biology 2017年第8期59卷 572-587页

作者： Youngsung Joo Variluska Fragoso Felipe Yon Ian t. Baldwin Sang-Gyu kim Depart.ent.of Molecular Ecology Max Planck Institute for Chemical EcologyHans-Knoll-Straβe 8D-07745 JenaGermany cent.r for genome engineering institute for basic scienceYuseong-guDaejeon34047South Korea

t.e circadian clock is known t. increase plant.growt. and fit.ess, and is t.ought.t. prepare plant. for phot.synt.esis at.dawn and dusk; whet.er t.is happens in nat.re was unknown. We t.ansformed t.e nat.ve t.bacco, Nicot.ana at.enuat. t. silence t.o core clock component., NaLHY （irLHY） and Nat.C1 （irt.C1）. We charact.rized growt. and light. and dark-adapt.d phot.synt.et.c rat.s （Ac） t.roughout.a 24 h clay in empt. vect.r-t.ansformed （EV）, irLHY, and irt.C1 plant. in t.e field, and in NaPhyA-and NaPhyB1-silenced plant. in t.e glasshouse. t.e growt. rat.s of irLHY plant. were lower t.an t.ose of EV plant. in t.e field. While irLHY plant. reduced Ac earlier at.dusk, no differences bet.een irLHY and EV plant. were observed at.dawn in t.e field, irLHY, but.not.EV plant., responded t. light.in t.e night.by rapidly increasing Ac. Under cont.olled condit.ons, EV plant. rapidly increased Ac in t.e day compared t. dark-adapt.d plant. at.night. irLHY plant. lost.t.ese t.me-dependent.responses. t.e role of NaLHY in gat.ng phot.synt.esis is independent.of t.e light.depen- dent.react.ons and red light.perceived by NaPhyA, but.not.NaPhyB1. In summary, t.e circadian clock allows plant. not.t. respond phot.synt.et.cally t. light.at.night.by ant.cipat.ng and gat.ng red light.mediat.d in nat.ve t.bacco.

关键词： in et is of Circadian clock component.LHY,t.lls a plant.when t. respond phot.synt.et.cally t. light.in nat.re were for Figure EV t.C

Fit.ess consequences of alt.ring floral circadian oscillat.ons for Nicot.ana at.enuat.

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Journal of Int.grat.ve Plant.Biology 2017年第3期59卷 180-189页

作者： Felipe Yon Danny Kessler Youngsung Joo Lucas Cort.s Llorca Sang-Gyu kim Ian t. Baldwin Depart.ent.of Molecular Ecology Max Planck Institute for Chemical Ecology Hans-Knoll-Straβe 8 D-07745 Jena Germany Cent.r for Genome Engineering Institute for Basic Science Yuseong-gu 34047 Daeieon South Korea

Ecological int.ract.ons bet.een flowers and pollinat.rs are all about.t.ming. Flower opening/closing and scent.emissions are largely synchronized wit. pollinat.r act.vit., and a circadian clock regulat.s t.ese rhyt.ms. However, whet.er t.e circadian clock increases a plant.s reproduct.ve success by regulat.ng t.ese floral rhyt.ms remains unt.st.d. Flowers of Nicot.ana at.enuat., a wild t.bacco, diurnally and rhyt.mically open, emit.scent.and move vert.cally t.rough a 140° arc t. int.ract.wit. noct.rnal hawkmot.s. We t.t.ered flowers t. evaluat. t.e import.nceof flower posit.ons for Manduca flower posit.on dramat.cally sext.-mediat.d pollinat.ons; nfluenced pollinat.on. We examined t.e pollinat.on success of phase-shift.d flowers, silenced in circadian clock genes, NaZt., NaLHY, and Nat.CI, by RNAi. Circadian rhyt.ms in N. at.enuat. flowers are responsible for alt.red seed set.from out.rossed pollen.

关键词： Yonggen Lou Zhejiang Universit. China

Phot.product.on of t.e Θ^+ and it. vect.r andaxial-vect.r st.uct.re

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Chinese Physics C 2009年第12期33卷 1279-1284页

作者： H.-Ch. kim K. Goeke t. Ledwig S. i. Nam Depart.ent.of Physics Inha University Incheon 402-751 Republic of Korea Inst.t.t.fr t.eoret.sche Physik II Ruhr-Universitt Bochum D-44780 Bochum Germany Inst.t.t.fr Kernphysik Universitt Mainz D-55099 Mainz Germany Depart.ent.of Physics Chung-Yuan Christian University (CYCU)

We present.recent.invest.gat.ons on t.e vect.r and axial-vect.r t.ansit.ons of t.e baryon ant.decuplet.wit.in t.e framework of t.e self-consist.nt.SU（3） chiral quark-solit.n model, t.king int. account.t.e 1/No rot.t.onal and linear mscorrect.ons. t.e main cont.ibut.on t. t.e elect.ic-like t.ansit.on form fact.r comes from t.e wave-funct.on correct.ons. t.is is a consequence of t.e generalized Ademollo-Gat.o t.eorem. It.is also found t.at.in general t.e leading-order cont.ibut.ons are almost.canceled by t.e rot.t.onal 1/No correct.ons. t.e result. are summarized as follows： t.e vect.r and t.nsor K＇NO coupling const.nt., gK＊N= 0.74--0.87 and fk＊N =0.53--1.16, respect.vely, and F→KN = 0.71 MeV, based on t.e result.of t.e KN coupling const.nt.gKne =0.83. We also show t.e different.al cross sect.ons and beam asymmet.ies, based on t.e present.result.. We also discuss t.e connect.on of present.result. wit. t.e original work by Diakonov, Pet.ov, and Polyakov.

关键词： Baryon ant.decuplet vect.r and axial-vect.r t.ansit.on form fact.rs chiral quark-solit.n model,Phot.product.on of t.e +

Numerical analysis of t.ermal plasma scrubber for CF4 decomposit.on

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Plasma Science and t.chnology 2019年第6期21卷 9-14页

作者： J KO t.H kim S CHOI Depart.ent.of Nuclear and Energy Engineering Jeju National University Jeju 63243 Republic of Korea Inst.t.t. for Nuclear Science and t.chnology Jeju National University Jeju 63243 Republic of Korea

CF4 gas emit.ed in t.e semiconduct.r and display manufact.ring process is a very harmful greenhouse *** must.be removed or convert.d safely due t. it. ext.eme *** a CF4 decomposit.on syst.m using a t.ermal plasma scrubber was commercialized,it. removal efficiency is *** t.is work,a numerical analysis of CF4 decomposit.on in t.e t.ermal plasma scrubber was carried out.in order t. propose an efficient.decomposit.on *** decomposit.on and recombinat.on t.mperat.res of CF4 were analyzed using t.ermodynamic equilibrium *** chemical react.on of CF4 decomposit.on int. carbon and fluorine gas was considered in t.is numerical *** inject.on posit.on and angle of t.e CF4 were cont.olled in order t. enhance t.e decomposit.on *** vert.cal inject.on of CF4 near t.e t.rch exit.improved t.e mixing of t.e CF4 wit. t.e t.ermal plasma *** addit.on,it.was confirmed t.at.t.e high t.mperat.re region expanded due t. a vort.x generat.d by st.ong t.rbulence in t.e bot.leneck-shaped *** a result.it.is revealed t.at.t.e CF4 inject.on locat.on and t.e react.r configurat.on are t.e most.import.nt.fact.rs in improving t.e decomposit.on rat..

关键词： numerical simulat.on decomposit.on CF4 t.ermal plasma scrubber