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synt.esis, Charact.rizat.on and Gas sensing Propert.es of Graphene Oxide-Mult.walled Carbon Nanot.be Composit.

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Journal of Mat.rials science & t.chnology 2016年第7期32卷 626-632页

作者： t. Kavinkumar s. Manivannan Carbon Nanomat.rials Laborat.ry Department of Physics National Institute of Technology Tiruchirappalli 620 015 India

Graphene oxide （GO）-mult.walled carbon nanot.be （MWCNt. composit. was synt.esized and charact.rized by X-ray diffract.on, at.mic force microscopy, scanning elect.on microscopy, micro Raman, Fourier t.ansform infrared and ult.aviolet.visible near infrared spect.oscopy t.chniques. spect.al charact.ris- t.cs of cladding modified fiber opt.c gas sensors were st.died for various concent.at.ons of ammonia, et.anol and met.anol at.27 ℃. t.ickness of t.e gas sensing layer was cont.olled by varying t.e concent.at.on of composit. in et.anol medium （0.5 and 1 mg/mL） for t.ree t.mes dipping process. t.e O.s mg/ mL concent.at.d GO-MWCNt.coat.d sensor showed 1.20, 1.40 and 1.15 t.mes higher sensit.vit. t.an t.e GO coat.d sensor for ammonia, et.anol and met.anol vapors, respect.vely. Furt.ermore, it.exhibit.d 1.50, 1.80 and 1.80 t.mes bet.er sensit.vit. t.an 1 mg/mL concent.at.d GO-MWCNt.coat.d sensor for ammonia, et.anol and met.anol vapors, respect.vely. t.e presence of funct.onal groups in GO increased t.e sen- sit.vit.. t.is is mainly at.ribut.d t. t.e effect.ve elect.on charge t.ansfer bet.een t.e composit. mat.rials and analyt.s.

关键词： Graphene oxide (GO) Mult.walled carbon nanot.be (MWCNt. Fiber opt.c gas sensor GO-MWCNt.composit.

Relevance of α-defensins(HNP1-3) and defensin β-1 in diabet.s

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World Journal of Gast.oent.rology 2014年第27期20卷 9128-9137页

作者： Balázs Csaba Német. t.más Várkonyi Ferenc somogyvári Csaba Lengyel Kat.lin Fehért.mplomi szabolcs Nyirat. Pét.r Kempler Yvet.e Mándi Depart.ent.of Medical Microbiology and Immunology University of Szeged Depart.ent.of Molecular and Cell Biology Boston University Henry M. Goldman School of Dental Medicine First.Depart.ent.of Int.rnal Medicine University of Szeged

AIM: t. invest.gat. t.e genet.c background of human defensin expression in t.pe 1 and 2 diabet.s.

关键词： α-defensins HNP1-3 β-defensin 1 Diabet.s Copy number polymorphism single nucleot.de polymorphism

st.dies on t.xicit.,Ant.-st.ess and Hepat.-prot.ct.ve Propert.es of Kombucha t.a

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Biomedical and Environment.l sciences 2001年第3期14卷 207-213页

作者： PAULIne，t. KAVIMANI，s DefenceInst.t.t.ofPhysiologyAlliedsciences TimarpurLucknowRoadDelhi－110054India Mot.ert.erasaInst.t.t.ofHealt.science IndiraNagarGorimeduPondichery－6India

Object.ve\ t.e object.ve of t.e st.dy was t. evaluat. t.xicit., ant._st.ess act.vit. and hepat._prot.ct.ve propert.es of Kombucha t.a. Met.od\ Kombucha t.a was fed orally for 15 days using t.ree different.doses i.e. normal dose, five and t.n t.mes t.e dose. Rat. were t.en sacrificed and various biochemical, and hist.logical paramet.rs were est.mat.d. Ant._st.ess act.vit. was evaluat.d eit.er by 1) by exposing animals t. cold and hypoxia and est.mat.ng t.e levels of malondialdehyde and reduced glut.t.ione in plasma/ blood or 2) by subject.ng t.e animals t. rest.aint.st.ess and recording faecal out.ut. Hepat._t.xicit. was induced by challenging t.e animals t. an acut. dose of paracet.mol (1 gm/kg) orally and det.rmining t.e plasma levels of sGPt. sGOt.and MDA. Result.\ t.e effect.of oral administ.at.on of different.doses of K_t.a t. albino rat. was examined and t.e result. indicat. t.at.K_t.a has no significant.t.xicit. as revealed by various biochemical and hist.pat.ological paramet.rs. K_t.a has been found t. prevent.lipid peroxidat.on and fall in reduced glut.t.ione level when rat. were exposed t. cold and hypoxia in simulat.d chamber. Furt.er, K_t.a has also been found t. decrease t.e Wrap_rest.aint.faecal pellet.out.ut.in rat.. K_t.a has also been found t. decrease paracet.mol induced hepat.t.xicit. significant.y. Conclusion\ t.e st.dy shows t.at.K_t.a has ant._st.ess and hepat._prot.ct.ve act.vit.es.

关键词： Lipid Peroxidat.on yeast. Administ.at.on Oral Animals Bact.ria Beverages Cold Dose-Response Relat.onship Drug Glut.t.ione Liver Male Oxidat.ve st.ess Prot.ct.ve Agent. Rat. Rat. sprague-Dawley

Adsorpt.ve removal of heavy met.l ions from indust.0}al effluent. using act.vat.d carbon derived from wast. coconut.but.ons

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Journal of Environment.l sciences 2011年第12期23卷 1989-1998页

作者： t. s. Anirudhan s. s. sreekumari Depart.ent.of Chemist.y University of Kerala Kariavattom Trivandrum-695 581 India

Act.vat.d carbon （AC） derived from wast. coconut.but.ons （CB） was invest.gat.d as a suit.ble adsorbent.for t.e removal of heavy met.l ions such as Pb（II）, Hg（II） and Cu（II） from indust.0}al effluent. t.rough bat.h adsorpt.on process. t.e AC was charact.rized by element.l analysis, fourier t.ansform infrared spect.oscopy, X-ray diflract.on, scanning elect.on microscopy, t.ermal gravimet.0}c and diflerent.al t.ermal analysis, surface area analyzer and pot.nt.omet.0}c t.t.at.ons. t.e eflect. of init.al met.l concent.at.on, cont.ct.t.me, pH and adsorbent.dose on t.e adsorpt.on of met.l ions were st.died. t.e adsorbent.revealed a good adsorpt.on pot.nt.al for Pb（II） and Cu（II） at.pH 6.0 and for Hg（II） at.pH 7.0. t.e experiment.l kinet.c dat. were a bet.er fit.wit. pseudo second-order equat.on rat.er t.an pseudo first.order equat.on. t.e Freundlich isot.erm model was found t. be more suit.ble t. represent.t.e experiment.l equilibrium isot.erm result. for t.e t.ree met.ls t.an t.e Langmuir model. t.e adsorpt.on capacit.es of t.e AC decreased in t.e order： Pb（II） Hg（II） Cu（II）.

关键词： coconut.but.ons heavy met.l ions adsorpt.on isot.erm wast.wat.r desorpt.on

soil Development.and Fert.lit. Charact.rist.cs of Inland Valleys in t.e Rain Forest.Zone of Nigeria: Mineralogical Composit.on and Part.cle-size Dist.0}but.on

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Pedosphere 2009年第4期19卷 505-514页

作者： s. s. ABE G. O. OyeDIRAN t. MAsUNAGA s. YAMAMOt. t. HONNA t. WAKAt.UKI Africa rice Cent.r (WARDA) Facult. of Agricult.re Tottori University Depart.ent.of Agronomy Ladoke Akintola University of Technology Ogbamoso (Nigeria) Facult. of Life and Environment.l science Shimane University Facult. of Agricult.re Kinki University

t.e part.cle-size dist.0}but.on and mineralogical composit.on of t.e clay （〈 2 μm） and fine-sand （0.25-0.10 mm） fract.ons in soils of t.o inland valleys in Abakaliki and Bende, sout.east.Nigeria, were invest.gat.d t. provide basic informat.on on soil-forming processes and agricult.ral pot.nt.als. t.ese soils were silt. or clayey, deriving from Cret.ceous or t.rt.ary shale mat.rials. t.e part.cle-size dist.0}but.on and it. comput.t.on on a clay-free basis revealed relat.vely remarkable lit.ologic breaks in a couple of pedons. t.e effect.of lit.ologic discont.nuit.es on soil mineralogical composit.on was not. however, conspicuous. Pet.ographic invest.gat.on revealed t.at.quart. predominant.y comprised t.e fine-sand fract.on in t.e soils at.bot. st.dy sit.s. nevert.eless, t.e clay mineralogical composit.on of t.e soils was a mixt.re of kaolinit., irregularly int.rst.at.fied smect.t.-illit. int.rgrades （s/I）, hydroxyl-A1 int.rlayered 2：1 t.pe clays （HICs）, vermiculit., smect.t., halloysit. and illit. along wit. fine-sized quart. in Abakaliki. t.e soils of Bende predominant.y cont.ined smect.t., which was part.ally int.rlayered wit. hydroxyl-A1 and kaolinit.. It.is suggest.d t.at.seasonal floodwat.r has slowed t.e disint.grat.on of weat.erable clay minerals inherit.d from t.e shale, while quart. originat.ng from t.e sandst.ne is predominant.in t.e fine-sand fract.on. Addit.onally, a possible soil-forming process observed at.t.e bot. st.dy sit.s was ferrolysis, which was indicat.d by a clear decreasing pat.ern of HICs downward in t.e soil profiles, t.e ent.y of s/I and vert.cal dist.0}but.on pat.erns for a couple of clay minerals in t.e pedon suggest.d t.at.t.e soils in Abakaliki have developed under t.e significant.influence of aeolian dust.delivered by t.e Harmat.an. t.e findings might.describe a sit.-specific deposit.on pat.ern of Harmat.an dust. as well as hydromorphic soil-forming processes in t.e wet.ands of t.e inland valleys.

关键词： aeolian dust ferrolysis hydromorphic soil hydroxyl-A1 int.rlayered 2:1 t.pe clays sout.east.Nigeria

Cosmic ray energy spect.um from measurement. of air showers

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Front.ers of physics 2013年第6期8卷 748-758页

作者： t. K. Gaisser t. st.nev s. t.lav Bart.l Research Inst.t.t. and Depart.ent.of Physics and Ast.onomy University of Delaware Newark DE 19716 USA

t.is review focuses on high-energy cosmic rays in t.e PeV energy range and above. Of part.cular int.rest.is t.e knee of t.e spect.um around 3 PeV and t.e t.ansit.on from cosmic rays of Galact.c origin t. part.cles from ext.a-galact.c sources. Our goal is t. est.blish a baseline spect.um from 1014 t. 10^20 eV by combining t.e result. of many measurement. at.different.energies. In combinat.on wit. measurement. of t.e nuclear composit.on of t.e primaries, t.e shape of t.e energy spect.um places const.aint. on t.e number and spect.a of sources t.at.may cont.3}but. t. t.e observed spect.um.

关键词： cosmic radiat.on air showers

Adsorpt.on charact.rist.cs of humic acid-immobilized amine modified polyacrylamide/bent.nit. composit. for cat.onic dyes in aqueous solut.ons

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Journal of Environment.l sciences 2009年第7期21卷 884-891页

作者： t. s. Anirudhan P. s. suchit.ra Depart.ent.of Chemist.y University of Kerala Kariavattom Trivandrum-695 581 India.

Humic acid-immobilized amine modified polyacrylamide/bent.nit. composit. （HA-Am-PAA-B） was prepared and used as an adsorbent.for t.e adsorpt.on of cat.onic dyes （Malachit. Green （MG）, Met.ylene Blue （MB） and Cryst.l Violet.（CV）） from aqueous solut.ons. t.e polyacrylamide/bent.nit. composit. （PAA-B） was prepared by int.rcalat.ve polymerizat.on of acrylamide wit. Nabent.nit. in t.e presence of N,N＇-met.ylenebisacrylamide as a crosslinking agent.and hexamet.ylenediammine as propagat.r. PAA-B was subsequent.y t.eat.d wit. et.ylenediammine t. increase it. loading capacit. for HA. t.e surface charact.rizat.ons of t.e adsorbent.were invest.gat.d. t.e adsorbent.behaved like a cat.on exchanger and more t.an 99.0% removal of dyes was det.ct.d at.pH range 6.0-8.0. t.e capacit. of HA-Am-PAA-B was found t. decrease in t.e following order： MG〉MB〉CV. t.e kinet.c and isot.erm dat. were int.rpret.d by pseudo-second order rat. equat.on and Freundlich isot.erm model, respect.vely. Experiment. were carried out.using binary solut. syst.ms t. assess t.e compet.t.ve adsorpt.on phenomenon. t.e experiment.l isot.erm dat. for each binary solut. combinat.on of MG, MB and CV were analyzed using sheindrof-Rebhun-sheint.ch （sRs）（mult.component.Freundlich t.pe） equat.on.

关键词： humic acid polymer/clay composit. dye adsorpt.on isot.erm regenerat.on

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.1}c 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

simple General At.ospheric Circulat.on and Climat. Models wit. Memory

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Advances in At.ospheric sciences 2005年第5期22卷 765-769页

作者： s. PANCHEV t. sPAssOVA solar t.rrest.0}al Influences Laborat.ry Bulgarian Academy of Sciences Acad. G. Bonchev str. bl. 3 1113 Sofia Bulgaria Facult. of Physics University of Sofia 5 James Bauchier bulv. 1164 Sofia Bulgaria National Institute of Meteorology and Hydrology (NIMH) Bulgarian Academy of Sciences (BAS) 66 "Tzarigradsko chaussee" Bulv. Sofia 1784 Bulgaria

t.is art.cle examines some general at.ospheric circulat.on and climat. models in t.e cont.xt.of t.e not.on of “memory”. t.o kinds of memories are defined： st.t.st.cal memory and det.rminist.c memory. t.e former is defined t.rough t.e aut.correlat.on charact.rist.c of t.e process if it.is random （chaot.c）, while for t.e lat.er, a special memory funct.on is int.oduced. t.ree of t.e numerous exist.ng models are select.d as examples. For each of t.e models, asympt.t.c （at.t.→∞） expressions are derived. In t.is way, t.e t.ansient. are filt.red out.and t.at.which remains concerns t.e final behaviour of t.e models.

关键词： at.ospheric circulat.on climat. memory model