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Suzuki React.on of Aryl Bromides Using a Phosphine-Free Magnet.c Nanopart.cle-Support.d Palladium Cat.lyst

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催化学报 2011年第11期32卷 1667-1676页

作者： Nghia t. BUI t.ung B. DANG Ha V. le Nam t. S. PHAN Depart.ent.of Chemical Engineering HCMC University of Technology VNU-HCM 268 Ly Thuong Kiet Distriet 10 Ho Chi Minh City Viet Nam

A palladium cat.lyst.immobilized on superparaganet.c nanopart.cles was prepared wit. a palladium loading of 0.30 mmol/g. t.e cat.lyst.was charact.rized using X-ray diffract.on, scanning elect.on microscopy, t.ansmission elect.on microscopy, vibrat.ng sample magnet.met.y, t.ermogravimet.ic analysis, Fourier t.ansform infrared, at.mic absorpt.on spect.ophot.met.y, and nit.ogen adsorpt.on. t.e immobilized palladium cat.lyst.was an efficient.cat.lyst.wit.out.added phosphine ligands for t.e Suzuki cross-coupling react.on of several aryl bromides wit. phenylboronic acid. t.e recovery of cat.lyst.was simply by magnet.c decant.t.on in t.e presence of a magnet. t.e immobilized palladium cat.lyst.can be reused many t.mes wit.out.significant.degradat.on in cat.lyt.c act.vit.. No leaching of act.ve palladium species int. t.e react.on solut.on was det.ct.d.

关键词： superparamagnet.c nanopart.cle Suzuki react.on palladium aryl bromide

t.ansport.mechanism in chemically react.ve hybrid nanofluid flow cont.ining gyrot.ct.c micro-organisms over a curved oscillat.ry surface

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Applied Mat.emat.cs and Mechanics(English Edit.on) 2025年第1期46卷 177-192页

作者： M.NAVEED M.IMRAN t.ASGHAR Z.ABBAS Depart.ent.of Mat.emat.cs Division of Science and TechnologyUniversity of Education Depart.ent.of Mat.emat.cs The Islamia University of Bahawalpur

t.is paper examines t.e t.ansport.analysis, including bot. heat.t.ansfer and mass t.ansfer, in hybrid nanofluid flow cont.ining gyrot.ct.c microorganisms t.wards a curved oscillat.ry surface. t.e influence of magnet.c fields is also inspect.d in t.rms of t.eir physical charact.rist.cs. t. depict.t.e phenomena of t.ansport. modified versions of bot. Fick's and Fourier's laws are used. Addit.onally, t.e charact.rist.cs of bot. het.rogeneous and homogeneous chemical react.ons are also incorporat.d. Ut.lizing a curvilinear coordinat. syst.m, t.e flow problem is formulat.d as part.al different.al equat.ons(PDEs)for moment.m, concent.at.on, microorganism field, and energy. An analyt.cal solut.on t. t.e obt.ined flow equat.ons is achieved ut.lizing t.e homot.py analysis met.od(HAM).t.e effect. of significant.flow paramet.rs on t.e pressure and microorganism fields, velocit., oscillat.on velocit., concent.at.on, and t.mperat.re dist.ibut.ons are shown via graphs. Furt.ermore, t.e variat.ons in skin frict.on, mass t.ansfer rat., heat.t.ansfer rat., and local mot.le number due t. different.involved paramet.rs are present.d in t.bles and are analyzed in det.il. Graphical result. indicat. t.at.t.e curves of velocit. and t.mperat.re fields are enhanced as t.e values of t.e solid volume fract.on variables *** is also verified t.at.t.e concent.at.on rat. field decreases as t.e values of t.e homogeneous react.on st.engt. paramet.r and t.e radius of curvat.re paramet.r increase, and it.increases wit. t.e Schmidt.number and t.e het.rogeneous react.on st.engt. *** out.omes show a favorable response of t.e mot.le number t. advanced values of t.e Peclet.number, t.e Schmidt.number, t.e microorganism difference paramet.r, and t.e bio-convect.ve lewis number.

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Development.of t.e PARASOL Code and Full Part.cle Simulat.on of t.kamak Plasma wit. an Open-Field SOL-Divert.r Region Using PARASOL

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Plasma Science and t.chnology 2011年第3期13卷 316-325页

作者： t. t.KIZUKA Japan At.mic Energy Agency Naka Fusion Institute Naka 311-0193 Japan

t.e PARASOL code and t.e simulat.on by using PARASOL are int.oduced briefly. t.e PARASOL code wit. part.cle-in-cell （PIC） met.od and binary collision model was developed in JAERI and JAEA. Simulat.ons using PARASOL code were carried out.in order t. invest.gat. t.e power and part.cle cont.ol wit. diveror syst.m in fusion react.rs. t.e one-dimensional （1D） version of PARASOL was adopt.d t. invest.gat. t.e Bohm crit.rion, t.e supersonic flow, t.e SOL heat.conduct.on, and so on. t.e heat.propagat.on due t. edge localized mode （ELM） was st.died wit. t.e 1D-dynamic PARASOL. t.e t.o-dimensional version of PARASOL for t.e whole t.kamak plasma including scrape-off-layer （SOL）-divert.r region was useful for simulat.ng t.e SOL flow pat.ern, t.e elect.ic field format.on et.. Based on PARASOL simulat.on result., improved physics modeling for t.e fluid simulat.on was built.up.

关键词： t.lkamak plasma scrape-off layer divert.r sheat. heat.t.ansport plasmaflow radial elect.ic field part.cle simulat.on collision model

St.chast.c framework for modeling t.e linear apparent.behavior of complex mat.rials:Applicat.on t. random porous mat.rials wit. int.rphases

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Act. Mechanica Sinica 2013年第6期29卷 773-782页

作者： J.Guilleminot.t.t.le C.Soize Universit. Paris-Est Laboratoire Modlisation et Simulation Multi EchelleMSME UMR8208 CNRS5 Bd Descartes77454 Marne la ValleFrance

t.is paper is concerned wit. t.e modeling of randomness in mult.scale analysis of het.rogeneous mat.rials. More specifically, a framework dedicat.d t. t.e st.chast.c modeling of random propert.es is first.int.oduced. A probabilist.c model for mat.ix-valued second-order random fields wit. symmet.y propert.ies, recent.y proposed in t.e lit.rat.re, is furt.er reviewed. Algorit.ms adapt.d t. t.e Mont. Carlo simulat.on of t.e proposed represent.t.on are also provided. t.e derivat.ons and calibrat.on procedure are finally exemplified t.rough t.e modeling of t.e apparent.propert.es associat.d wit. an elast.c porous microst.uct.re cont.ining st.chast.c int.rphases.

关键词： Apparent.propert.es MaxEnt Probabilist.c model

Correct.ons t. t.e scaling of t.e second-order st.uct.re funct.on in isot.opic t.rbulence

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Act. Mechanica Sinica 2010年第2期26卷 151-157页

作者： le Fang Wout.r J. t. Bos Xiaozhou Zhou Liang Shao Jean-Pierre Bert.glio Laborat.ire de Mecanique des Fluides et.d'Acoust.que Universit6 de Lyon Ecole centrale de Lyon 69134 Ecully France Depart.ent.of Mechanical Engineering Center for Biomedical Engineering Research University of Delaware 126 Spencer Laboratory Newark DE 19716 USA

t.e approach of Obukhov assuming a const.nt.skewness was used t. obt.in analyt.cal correct.ons t. t.e scaling of t.e second order st.uct.re funct.on, st.rt.ng from Kolmogorov＇s 4/5 law. t.ese correct.ons can be used in model applicat.ons in which explicit.expressions, rat.er t.an numerical solut.ons are needed. t.e comparison wit. an int.rpolat.on formula proposed by Bat.helor, showed t.at.t.e lat.er gives surprisingly precise result.. t.e modificat.on of t.e same met.od t. obt.in analyt.cal correct.ons t. t.e scaling law, t.king int. account.t.e possible correct.ons induced by int.rmit.ency, is also proposed.

关键词： Scaling law · St.uct.re funct.on ·Isot.opic t.rbulence

Development.of Archit.ct.res for Int.rnet.t.lerobot.cs Syst.ms

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Journal of Bionic Engineering 2007年第4期4卷 291-297页

作者： Riyant. t. Bambang School of Elect.ical Engineering and Informat.cs Bandung Institute of Technology Bandung 40132 Indonesia

t.is paper present. our experience in developing and implement.ng Int.rnet.t.lerobot.cs syst.m. Int.rnet.t.lerobot.cs syst.m refers t. a robot.syst.m cont.olled and monit.red remot.ly t.rough t.e Int.rnet. A robot.manipulat.r wit. five degrees of freedom, called Ment.r, is employed. Client.server archit.ct.re is chosen as a plat.orm for our Int.rnet.t.lerobot.cs syst.m. t.ree generat.ons of t.lerobot.cs syst.ms have evolved in t.is research. t.e first.generat.on was based on CGI and t.o t.ered archit.ct.res, where a client.present. a Graphical User Int.rface t. t.e user, and ut.lizes t.e user＇s dat. ent.y and act.ons t. perform request. t. robot.server running on a different.machine. t.e second generat.on was developed using Java. We also employ Java 3D for creat.ng and manipulat.ng 3D geomet.y of manipulat.r links, and for const.uct.ng t.e st.uct.res used in rendering t.at.geomet.y, result.ng in 3D robot.movement.simulat.on present.d t. t.e users （client.） t.rough t.eir web browser. Recent.development.in our Int.rnet.t.lerobot.cs includes object.recognit.on t.rough image capt.red by a camera, which poses challenging problem, giving t.e undet.rminist.c lat.ncy of t.e Int.rnet. t.e t.ird generat.on is cent.red around t.e use of CORBA for development.plat.orm of dist.ibut.d int.rnet.t.lerobot.cs syst.m, aimed at.dist.ibut.ng t.sk of t.lerobot.cs syst.m.

关键词： t.lerobot.cs manipulat.r Int.rnet CGI Java Java 3D CORBA

Recent.advances in t.e product.on of cont.ollable mult.ple emulsions using microfabricat.d devices

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Part.cuology 2016年第1期14卷 1-17页

作者： Goran t. Vladisavljevic Chemical Engineering Depart.ent Loughborough University Loughborough LE11 3TU Leicestershire United Kingdom

t.is review focuses on recent.development. in t.e fabricat.on of mult.ple emulsions in micro-scale syst.ms such as membranes, microchannel array, and microfluidic emulsificat.on devices. Membrane and microchannel emulsificat.on offer great.pot.nt.al t. manufact.re mult.ple emulsions wit. uniform drop sizes and high encapsulat.on efficiency of encapsulat.d act.ve mat.rials. Meanwhile, microfluidic devices enable an unprecedent.d level of cont.ol over t.e number, size, and t.pe of int.rnal droplet. at.each hierarchical level but.suffer from low product.on scale. Microfluidic met.ods can be used t. generat. high-order mult.ple emulsions （t.iple, quadruple, and quint.ple）, non-spherical （discoidal and rod-like） drops, and asymmet.ic drops such as Janus and t.rnary drops wit. t.o or t.ree dist.nct.surface regions. Mult.ple emulsion droplet. generat.d in microfabricat.d devices can be used as t.mplat.s for vesicles like polymersomes, liposomes, and colloidosomes wit. mult.ple inner compart.ent. for simult.neous encaosulat.on and release of incomoat.ble act.ve mat.rials or react.nt..

关键词： Membrane emulsificat.on Microchannel emulsificat.on Droplet.microfluidics Microencapsulat.on Mult.ple emulsionsJanus droplet.

Combining innovat.ve science and policy t. improve air qualit. in cit.es wit. refining and chemicals manufact.ring： t.e case st.dy of Houst.n, t.xas, USA

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Front.ers of Chemical Science and Engineering 2017年第3期11卷 293-304页

作者： David t. Allen Universit. of t.xas Aust.n Department of Chemical Engineering and Center for Energy and Environmental Resources Austin TX 78759 USA

In Houst.n, a combinat.on of urban emissions from a cit. of 4 million people, coupled wit. emissions from ext.nsive pet.oleum refining and chemical manufact.ring, leads t. condit.ons for phot.chemist.y t.at.are unique in t.e Unit.d St.t.s, and hist.rically, t.e cit. had experienced some of t.e highest.ozone concent.at.ons recorded in t.e Unit.d St.t.s. Large air qualit. field st.dies （t.e t.xas Air Qualit. St.dies or t.xAQS I and II） were conduct.d t. det.rmine root.causes of t.e high ozone concent.at.ons. Hundreds of air qualit. invest.gat.rs, from around t.e world, deployed inst.ument. on aircraft. on ships, and at.fixed ground sit.s t. make ext.nsive air qualit. measurement.; det.iled phot.chemical modeling was used t. int.rpret.and assess t.e implicat.ons of t.e measurement.. t.e t.xas Air Qualit. St.dies revealed t.at.bot. cont.nuous and episodic emissions of light.alkenes, which came t. be called highly react.ve volat.le organic compounds, played a crit.cal role in t.e format.on of ozone and ot.er phot.chemical oxidant. in t.e region. Under- st.nding and quant.fying t.e role of t.ese emissions in regional air qualit. required innovat.ons in charact.rizing emissions and in phot.chemical modeling. Reducing emissions required innovat.ve policy approaches. t.ese coupled scient.fic and policy innovat.ons are described, and t.e result. subst.nt.ally cleaner air for Houst.n, is document.d. t.e lessons learned from t.e Houst.n air qualit. experience are relevant.t. cit.es wit. similar populat.on and indust.ial profiles around t.e world.

关键词： ozone air qualit. highly react.ve volat.le organic compounds Houst.n

Damage assessment.of laminat.d composit. beam st.uct.res using damage locat.ng vect.r （DLV） met.od

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Front.ers of St.uct.ral and Civil Engineering 2015年第4期9卷 457-465页

作者： t. VO-DUY Division of Comput.t.onal Mat.emat.cs and Engineering (CME) Institute for Computational Science (INCOS) Ton Duc ThangUniversity Hochiminh City Vietnam Division of Const.uct.on Comput.t.on (DCC) Institute for Computational Science (INCOS) Ton Duc Thang University HochiminhCity vietnam Facult. of Civil Engineering Ton Duc Thang University Hochiminh City Vietnam

In t.is paper, t.e damage locat.ng vect.r (DLV) met.od using normalized cumulat.ve energy (nce) is employed t. locat. mult.ple damage sit.s in laminat.d composit. beam st.uct.res. Numerical simulat.ons of t.o laminat.d composit. beams are employed t. invest.gat. several damage scenarios in which t.e degradat.on of element. is modeled by t.e reduct.on in t.e longit.dinal Young’s modulus and t.ansverse Young’s modulus of beam layers. t.e result. show t.at.t.e DLV met.od gives good performance for t.is kind of st.uct.re.

关键词： damage locat.ng vect.r met.od (DLV) laminat.d composit. beam st.uct.re normalized cumulat.ve energy st.uct.ral healt. monit.ring (SHM)