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Suzuki React.on of Aryl b.omides 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. b.I 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.immob.lized 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, vib.at.ng sample magnet.met.y, t.ermogravimet.ic analysis, Fourier t.ansform infrared, at.mic ab.orpt.on spect.ophot.met.y, and nit.ogen adsorpt.on. t.e immob.lized palladium cat.lyst.was an efficient.cat.lyst.wit.out.added phosphine ligands for t.e Suzuki cross-coupling react.on of several aryl b.omides wit. phenylb.ronic acid. t.e recovery of cat.lyst.was simply b. magnet.c decant.t.on in t.e presence of a magnet. t.e immob.lized palladium cat.lyst.can b. 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 b.omide

Inoculat.on wit. Pseudomonas spp. Cont.ining ACC-Deaminase Part.ally Eliminat.s t.e Effect. of Drought.St.ess on Growt.,Yield,and Ripening of Pea (Pisum sat.vum L.)

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Pedosphere 2008年第5期18卷 611-620页

作者： M. ARSHAD b. SHAHAROONA t. MAHMOOD Inst.t.t. of Soil & Environment.l Sciences University of AgricultureFaisalabad-38040(Pakistan) Depart.ent.of Agronomy University of Arid AgricultureRawalpindi(Pakistan)

t.o preselect.d plant.growt. promot.ng rhizob.ct.ria(PGPR) cont.ining 1-aminocyclopropane-1-carb.xylat.(ACC) -deaminase(EC 4.***.99.4) were used t. invest.gat. t.eir pot.nt.al t. ameliorat. t.e effect. of drought.st.ess on growt.,yield,and ripening of pea(Pisum sat.vum L.) . Inoculat.d and uninoculat.d(cont.ol) seeds of pea cult.var 2000 were sown in pot.(four seeds pot.1) and placed in a wire house. t.e plant. were exposed t. drought.st.ess at.different.st.ges of growt.(veget.t.ve,flowering,and pod format.on) b. skipping t.e respect.ve irrigat.on. Result. revealed t.at.inoculat.on of peas wit. PGPR cont.ining ACC-deaminase significant.y decreased t.e "drought.st.ess imposed effect." on t.e growt. and yield of peas. Exposure of plant. t. drought.st.ess at.veget.t.ve growt. st.ge significant.y decreased shoot.growt. b. 41% in t.e case of uninoculat.d plant.,whereas,b. only 18% in t.e case of inoculat.d plant. compared t. nonst.essed uninoculat.d cont.ol. Grain yield was decreased when plant. were exposed t. drought.st.ess at.t.e flowering and pod format.on st.ge,b.t.inoculat.on result.d in b.t.er grain yield(up t. 62% and 40% higher,respect.vely) t.an t.e respect.ve uninoculat.d nonst.essed cont.ol. Ripening of pods was also delayed in plant. inoculat.d wit. PGPR,which may imply decreased endogenous et.ylene product.on in inoculat.d plant.. t.is premise is furt.er support.d b. t.e ob.ervat.on t.at.inoculat.on wit. PGPR reduced t.e int.nsit. of classical "t.iple" response in et.olat.d pea seedlings,caused b. ext.rnally applied ACC. It.is very prob.b.e t.at.t.e drought.st.ess induced inhib.t.ry effect. of et.ylene could b. part.ally or complet.ly eliminat.d b. inoculat.on wit. PGPR cont.ining ACC-deaminase.

关键词： ACC-deaminase drought.st.ess plant.growt. rhizob.ct.ria ripening

η-product.on on t.e prot.n via elect.omagnet.c and hadronic prob.s

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Chinese Physics C 2009年第12期33卷 1175-1182页

作者： b. Saghai J. Durand b. Julia-Diaz 何军 t.-S. H. Lee t. Sat. Inst.t.t.de Recheche sur les lois Fondament.les de l’Univers DSM/Irfu CEA-Saclay 91191 Gif-sur-Yvette France 2. Excited Baryon Analysis Center (EBAC) Thomas Jefferson National Accelerator Facility Newport News Virginia 22901 USA 3. Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos Universitat de Barcelona E-08028 Barcelona Spain 4. Institute of Modern Physics Chinese Academy of Sciences Physics Division Argonne National Laboratory Argonne Illinois 60439 USA Depart.ent.of Physics Osaka University Toyonaka Osaka 560-0043 Japan

t.e react.ons π-p→ηn and γp→ηp are invest.gat.d wit.in a dynamical coupled-channels model of meson product.on react.ons in t.e nucleon resonance region. t.e meson-b.ryon channels included are πN, ηN, π-, σN, and ρN. t.e direct.η-phot.product.on process is st.died wit.in a formalism b.sed on a chiral const.t.ent.quark model approach, complement.d wit. a one-gluon-exchange mechanism, t. t.ke int. account.t.e b.eakdown of t.e SU(6)O(3) symmet.y. In t.e models search, t.e following known nucleon resonances are emb.died: S11(1535), S11(1650), P11(1440), P11(1710), P13(1720), D13(1520), D13(1700), D15(1675), and F15(1680). Dat. for t.e π-p→ηn react.on from t.reshold up t. a t.t.l cent.r-of-mass energy of W ≈ 2 GeV are sat.sfact.rily reproduced. For t.e phot.product.on channel, t.o addit.onal higher mass known resonances, P13(1900) and F15(2000), are also considered. However, reproducing t.e dat. for γp→ηp requires, wit.in our approach, t.o new nucleon resonances, for which we ext.act.mass and widt..

关键词： Part.cle physics and field t.eory

Comb.ned effect. of rot.t.on and t.ermal radiat.on on perist.lt.c t.ansport.of Jeffrey fluid

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Int.rnat.onal Journal of b.omat.emat.cs 2015年第5期8卷 159-179页

作者： t. Hayat.Maimona Rafiq b. Ahmad Depart.ent.of Mat.emat.cs Quaid-i-Azam University 45320 Islamabad44000 Pakistan Nonlinear Analysis and Applied Mat.emat.cs (NAAM) Research Group Depart.ent.of Mat.emat.cs King Abdulaziz University Jeddah 21589 Saudi Arabia

t.e ob.ect.ve of t.is communicat.on is t. examine t.e effect.of rot.t.on on t.e perist.lt.c mot.on of non-Newt.nian fluid. Const.t.t.ve relat.onship of Jeffrey fluid is employed in t.e mat.emat.cal formulat.on and relat.d analysis. t.e t.ermal radiat.on and Joule heat.ng effect. are also considered. An elect.ically conduct.ng fluid in a channel wit. compliant.b.undaries is t.ken. Solut.on expressions are est.b.ished t.rough assumpt.ons of large wavelengt. and low Reynolds numb.r. Impact.of t.ylor and Hart.an numb.rs on t.e axial velocit. is similar in a qualit.t.ve sense. t.ere is reverse effect.of t.ylor numb.r on t.e secondary velocit. when compared wit. t.e axial velocit.. t.mperat.re and heat.t.ansfer coefficient. are increasing funct.ons of t.ylor numb.r.

关键词： Rot.t.ng frame t.ermal radiat.on Joule heat.ng Jeffrey fluid.

St.b.lit. of aneurysm solut.ons in a fluid-filled elast.c memb.ane t.b.

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Act. Mechanica Sinica 2012年第4期28卷 1209-1218页

作者： A. t. Irichev Y.-b. Fu St.klov Mat.emat.cal Inst.t.t. Gubkina Str. 8 119991 Moscow Russia Depart.ent.of Mat.emat.cs Keele University Staffordshire ST5 5BG U.K.

When a hyperelast.c memb.ane t.b. is inflat.d b. an int.rnal pressure, a localized b.lge will form when t.e pressure reaches a crit.cal value. As inflat.on cont.nues t.e b.lge will grow unt.l it.reaches a maximum size aft.r which it.will t.en propagat. in b.t. direct.ons t. form a hat.like profile. t.e st.b.lit. of such b.lging solut.ons has recent.y b.en st.died b. neglect.ng t.e inert.a of t.e inflat.ng fluid and it.was shown t.at.such b.lging solut.ons are unst.b.e under pressure cont.ol. In t.is paper we ext.nd t.is recent.st.dy b. assuming t.at.t.e inflat.on is b. an inviscid fluid whose inert.a we t.ke int. account.in t.e st.b.lit. analysis. t.is reflect. more closely t.e sit.at.on of aneurysm forma- t.on in human art.ries which mot.vat.s t.e current.series of st.dies. It.is shown t.at.fluid inert.a would significant.y reduce t.e growt. rat. of t.e unst.b.e mode and t.us it.has a st.ong st.b.lizing effect.

关键词： Aneurysms Localized b.lging St.b.lit. b.- furcat.on

t.o-Fact.r Cancelab.e b.omet.ics Aut.ent.cat.r

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Journal of Comput.r Science & t.chnology 2007年第1期22卷 54-59页

作者：彭颖涵 Andrew t. b. J David N. C. L Facult. of Informat.on Science and t.chnology Multimedia University dalan Ayev Keroh Lama 75450 Melaka Malaysia

b.omet.ics-b.sed aut.ent.cat.on syst.m offers advant.ges of providing high reliab.lit. and accuracy. However t.e cont.mporary aut.ent.cat.on syst.m is impuissance t. compromise. If a b.omet.ics dat. is compromised, it.cannot.b. replaced and rendered unusab.e. In t.is paper, a cancelab.e b.omet.ics-b.sed aut.ent.cat.r is proposed t. solve t.is irrevocab.lit. issue. t.e proposed approach is a t.o-fact.r aut.ent.cat.on syst.m, which requires b.t. of t.e random dat. and facial feat.re in order t. access t.e syst.m. In t.is syst.m, t.kenized pseudo-random dat. is coupled wit. moment.0}sed facial feat.re via inner product.algorit.m. t.e out.ut.of t.e product.is t.en discret.zed t. generat. a set.of privat. b.nary code, coined as 2fact.r-Hashing code, which is act.d as verificat.on key. If t.is b.omet.ics-b.sed verificat.on key is compromised, a new one can b. issued b. replacing a different.set.of random numb.r via t.ken replacement. t.en, t.e compromised one is rendered complet.ly useless. t.is feat.re offers an ext.a prot.ct.on layer against.b.omet.ics fab.icat.on since t.e verificat.on code is replaceab.e. Experiment.l result. demonst.at. t.at.t.e proposed syst.m provides zero Equal Error Rat. in which t.ere is a clear separat.on in b.t.een t.e genuine and t.e impost.r dist.ib.t.on populat.ons.

关键词： cancelab.e b.omet.ics face recognit.on Geomet.ic moment.,pseudo Zernike moment

Spat.ally b.ased dispersal of acorns b. a scat.er-hoarding corvid may accelerat. passive rest.rat.on of oak hab.t.t.on California＇s largest.island

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Current.Zoology 2017年第4期63卷 363-367页

作者： Mario b. PESENDORFER t. Scot. SILLEt. Scot. A. MORRISON School of b.ological Sciences University of Nebraska - Lincoln 348 Manter Hall Lincoln NE 68588-0118 USA Migrat.ry b.rd Cent.r Smithsonian Conservation Biology Institute National Zoological Park MRC 5503 Washington D.C. 20013-7012 USA Cornell Lab.of Ornit.ology 159 Sapsucker Woods Rd Ithaca NY 14850 USA t.e Nat.re Conservancy 4th Floor 201 Mission Street San Francisco CA 94105 USA

Scat.er hoarding b. corvids （crows, jays, magpies, and nut.rackers） provides seed dispersal for many large-seeded plant., including oaks and pines. When hoarding seeds, corvids oft.n choose nonrandom locat.ons t.roughout.t.e landscape, result.ng in different.al survival of seeds. In t.e cont.xt.of hab.t.t.rest.rat.on, such disproport.onal st.ring of seeds in areas suit.b.e for germin- at.on and est.b.ishment.can accelerat. expansion and recovery of large-seeded t.ee populat.ons and t.eir associat.d ecosyst.ms. Here, we invest.gat. t.e spat.al preferences of island scrub.jays Aphelocoma insularis during scat.er hoarding of acorns （Quercus spp.） on Sant. Cruz Island. We use a large b.havioral dat. set.on t.e b.rds＇ b.havior in comb.nat.on wit. seedling surveys and spat.al analysis t. det.rmine whet.er 1） island scrub.jays disproport.onally cache seeds in specific hab.t.t.t.pes, and 2） whet.er t.e preferred hab.t.t.t.pe is suit.b.e for oak regenerat.on. Our result. show t.at.t.e jays nonrandomly cache acorns across t.e landscape; t.ey use chaparral and coast.l sage scrub.disproport.onally while avoiding open and grassy areas. t.e areas used most.oft.n for caching were also t.e areas wit. t.e highest.oak seedling densit.es. We discuss t.e pot.nt.al role of t.ese findings for t.e recovery of Sant. Cruz Island＇s oak hab.t.t.since t.e 1980s.

关键词： Aphelocoma insularis direct.onal dispersal hab.t.t.rest.rat.on Quercus spp. scat.er hoarding seed dispersal.

Local Influence on t.e Error-Correct.on Variab.e in a Coint.grat.d Syst.m

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Journal of Syst.ms Engineering and Elect.onics 2001年第3期12卷 1-8页

作者： Zhang, X. Yang, b. Zhang, t. Zhang, S. School of Management Tianjin University Tianjin 310072 China

t.e concept.of coint.grat.on describ.s an equilib.ium relat.onship among a set.of t.me-varying variab.es, and t.e coint.grat.d relat.onship can b. represent.d t.rough an error-correct.on model (ECM). t.e error-correct.on variab.e, which represent. t.e short.run discrepancy from t.e equilib.ium st.t. in a coint.grat.d syst.m, plays an import.nt.role in t.e ECM. It.is nat.ral t. ask how t.e error-correct.on mechanism works, or equivalent.y, how t.e short.run discrepancy affect. t.e development.of t.e coint.grat.d syst.m? t.is paper examines t.e effect.or local influence on t.e error-correct.on variab.e in an error-correct.on model. Following t.e argument.of t.e second-order approach t. local influence suggest.d b. reference [5], we develop a diagnost.c st.t.st.c t. examine t.e local influence on t.e est.mat.on of t.e paramet.r associat.d wit. t.e error-correct.on variab.e in an ECM. An empirical example is present.d t. illust.at. t.e applicat.on of t.e proposed diagnost.c. We find t.at.t.e short.run discre pancy may have st.ong influence on t.e est.mat.on of t.e paramet.r associat.d wit. t.e error-correct.on model. It.is t.e error-correct.on variab.e t.at.t.e short.run discrepancies can b. incorporat.d t.rough t.e error-correct.on mechanism.

关键词： Comput.r simulat.on Error correct.on Mat.emat.cal models Paramet.r est.mat.on Program diagnost.cs St.t.st.cal met.ods t.me series analysis t.me varying cont.ol syst.ms

b.nding React.on of Hemin wit. Chloroquine, Quinine and Quinidine in Wat.r-propylene Glycol Mixt.re

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Chinese Journal of Chemist.y 2003年第8期21卷 1022-1025页

作者： MAVAKALA b. K. NLANDU b. b. MPIANA P. t. GUSHIMANA Z. Y. 尉志武 Minist.y of Educat.on Key Lab.rat.ry of b.oorganic Phosphorous Chemist.y & Chemical b.ology Department of Chemistry Tsinghua University Depart.ent.of Chemist.y Biomacromolecules Laboratory Kinshasa University B.P. 190 Kinshasa R. D. Congo

t.e int.ract.on of hemin wit. chloroquine, quinine and quini-dine wasinvest.gat.d in 50% wat.r-propylene glycol mixt.re at.pH = 9, 8.1, 7.4 and 6.8 using aspect.ophot.met.ic met.od. t.e dat. could b. well fit.ed int. a model consist.nt.wit. t.e format.onof a 1:1 complex b.t.een t.e react.ng part.ers. In addit.on, t.e result. indicat.d t.at.hemincomplexed more st.ongly wit. quinidine t.an wit. chloroquine and quinine, and t.e b.nding const.nt.were pH-dependent. Moreover, it.was proved t.at.t.e wat.r-propylene glycol mixt.re is well suit.b.et. t.e st.dy of t.e syst.ms cont.ining hemin and quinoline-b.sed drugs.

关键词： hemin ant.malarial drug complex pH-depen- dence propylene glycol