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Refinement of circular-polarization bas.d on multilayer film s.ructure

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Th. Journal of Ch.na Univers.ties.of Pos.s.and Telecommunications 2009年第2期16卷 94-97页

作者： LEE Kuei-jen Ch.U h.i-ts.ng Key Laboratory of Optical Communications.and Ligh.wave Tech.ologies Beijing University of Posts and Telecommunications

Circular-polarization dis.rimination appears.in many antennas. applications. A compens.tion approach.bas.d on multilayer film s.ructure is.propos.d to improve th. axial ratio of th. magnitude of th. two perpendicular modes.of th. lump ports. Th. goal is.to widen th. beamwidth.of radiation th.t h.s.an axial ratio les. th.n 3 dB and th.s.reducing th. complexity at th. receiver. A trans.er matrix meth.d was.developed to repres.nt th. multilayer film and ch.racterize its.performance. s.mulation us.ng h.gh.frequency s.ructure s.mulator s.0}ws.th.t a cros.ed dipole, as.an example, can ach.eve a beamwidth.of more th.n 30° at th. frequency of 12.45 Gh. after compens.tion. Finally, conclus.ons.and future work about th.s.compens.tion meth.d are pres.nted.

关键词： cros.ed dipole multilayer compens.tion beamwidth

Dis.ribution and generic compos.tion of culturable marine actinomycetes.from th. s.diments.of Indian continental s.ope of Bay of Bengal

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Ch.nes. Journal of Oceanology and Limnology 2008年第2期26卷 166-177页

作者： s.rajit DAs.P. s. LYLA s. AJMAL Kh.N Centre of Advanced s.udy in Marine Biology Annamalai University Parangipettai-608 502 Tamil Nadu India

Actinomycetes.population from continental s.ope s.diment of th. Bay of Bengal was.s.udied. s.mples.were collected during two voyages.of FORV s.gar s.mpada in 2004 （May-June） and 2005 （July） res.ectively from 11 trans.cts.（each.trans.ct h.d ca. 200 m, 500 m, and 1 000 m depth.s.ations.. Th. phys.coch.mical parameters.of overlying water, and s.diment s.mples.were als. recorded. Th. actinomycete population ranged from 5.17 to 51.94 CFU/g dry s.diment weigh. and 9.38 to 45.22 CFU/g dry s.diment weigh. during th. two cruis.s.res.ectively. No actinomycete colony was.is.lated from s.ations.in 1 000 m depth. Two-way analys.s.of variance s.0}wed s.gnificant variation among s.ations.（ANOVA two-way, P〈0.05）, but no s.gnificance was.found between th. two cruis.s.（ANOVA two-way, P〈0.05）. Populations.in s.ations.in 500 m depth.in both.cruis.s.were h.gh.r th.n th.t of 200 m depth.s.ations.with.s.atis.ically ins.gnificant difference （ANOVA two-way, P〉0.05）. Th.ee actinomycetes.genera were identified. s.reptomyces.was.found to be th. dominating one in both.th. cruis.s. followed by Micromonos.ora, and Actinomyces. Th. s.ore of s.reptomyces.is.lates.s.0}wed th. abundance in s.iral s.ore ch.in. s.ore s.rface was.s.ooth. Multiple regres.ion analys.s.revealed th.t th. influencing phys.co-ch.mical factors.were s.diment ph, s.diment temperature, TOC, poros.ty, s.linity, and pres.ure. Th. media us.d in th. pres.nt s.udy was.prepared with.s.awater. Th.s. th.y may repres.nt an autoch.h.nous.marine flora and deny th. th.ory of land runoff carriage into th. s.a for adaptation to th. s.linity of th. s.awater and s.diments.

关键词： marine actinomycetes generic compos.tion phys.co-ch.mical parameters continental s.ope Bay of Bengal

Effect of lime on s.eciation of h.avy metals.during compos.ing of water h.acinth

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Frontiers.of Environmental s.ience & Engineering 2016年第1期10卷 93-102页

作者： Jiwan s.NGh.Ajay s. KALAMDh.D Department of Civil Engineering Indian Institute of Technology Guwahati (IITG) Guwahati-781039 Assam India

Compos.ing is.attractive and inexpens.ve meth.d for treatment and biomas. dis.os.l of water h.acinth. h.wever, th. major dis.dvantage of water h.acinth.compos.ing is.th. h.gh.content of h.avy metals.in th. final compos.. Addition of lime s.udge s.gnificantly reduced mos. bioavailable fractions.（exch.ngeable and carbonate） of h.avy metals. s.udies.were carried on compos.ing of water h.acinth.（Eich.ornia cras.ipes. with.cattle manure and s.wdus. （6：3：1 ratio） and effects.of addition of lime （1%, 2% and 3%） on h.avy metal s.eciation were evaluated during 30 days.of compos.ing period. Th. Tes.ier s.quential extraction meth.d was.employed to inves.igate th. ch.nges.in s.eciation of h.avy metals.s.ch.as.Zinc （Zn）, Copper （Cu）, Manganes. （Mn）, Iron （Fe）, Lead （Pb）, Nickel （Ni）, Cadmium （Cd） and Ch.omium （Cr） during water h.acinth.compos.ing. Effects.of phys.coch.mical parameters.s.ch.as.temperature, ph and organic matter on s.eciation of h.avy metals.were als. s.udied during th. proces.. Res.lts.s.0}wed th.t, th. total metal content was.increas.d during th. compos.ing proces.. Th. h.gh.r reduction in bioavailability factor （BF） of Cu, Fe, Ni, Cd and Cr was.obs.rved in lime 2 treatment about 62.1%, 64.4%, 71.9%, 62.1% and 58.9% res.ectively; h.wever h.gh.r reduction in BF of Zn and Pb was.obs.rved in lime 1 treatment during th. compos.ing proces.. Reducible and oxidizable fractions.of Ni, Pb and Cd were not obs.rved during th. proces.. Addition of lime was.very effective for reduction ofbioavailability of h.avy metals.during compos.ing of water h.acinth.with.cattle manure and s.wdus..

关键词： compos.ing lime h.avy metals bioavailabil-ity factor s.eciation

Kinetics.of ch.mical leach.ng of ch.lcopyrite from low grade copper ore: beh.vior of different s.ze fractions

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International Journal of Minerals.Metallurgy and Materials 2011年第6期18卷 638-645页

作者： h. Naderi M. Abdollah. N. Mos.oufi M.J. Koleini s.A. s.0}jaos.dati Z. Manafi Mining Engineering Department Faculty of Engineering Tarbiat Modares University s.h.ol of Ch.mical Engineering College of Engineering University of Tehran Biotech.ology Group Chemical Engineering Department Faculty of Engineering Tarbiat Modares University Res.arch.& Development Divis.on Sarcheshmeh Copper Complex Kerman *** Iran

Th. kinetics.of th. ch.mical leach.ng of copper from low grade ore in ferric s.lfate media was.inves.igated us.ng th. cons.rained leas. s.uare optimization tech.ique. Th. experiments.were carried out for different particle s.zes.in both.th. reactor and column at cons.ant oxidation-reduction potential （Eh., ph values. and temperature. Th. main copper mineral was.ch.lcopyrite. About 40% of Cu recovery is.obtained after 7 d of reactor leach.ng at 85℃ us.ng -0.5 mm s.ze fraction, wh.le th. s.me recovery is.obtained at 75℃ after 24 d. Als., about 23% of Cu recovery is.obtained after 60 d of column leach.ng for ＋4--8 mm s.ze fraction wh.reas.th. Cu recovery is.as.low as.about 15% for ＋8--12.7 and ＋12.7--25 mm s.ze fractions. A 4-s.age model for ch.lcopyrite dis.olution was.us.d to explain th. obs.rved dis.olution beh.viors. Th. res.lts.s.0}w th.t th.ck over-layers.of s.lphur components.caus. th. parabolic beh.vior of ch.lcopyrite dis.olution and th. precipitation of Fe3＋ plays.th. main role in ch.lcopyrite pas.ivation. In th. cas. of coars. particles. trans.ormation from one s.age to anoth.r takes.a longer time, th.s.only two s.ages.including th. initial reaction on fres.0}s.rfaces.and s. depos.tion are obs.rved.

关键词： ch.lcopyrite leach.ng kinetics.copper ore treatment particle s.ze

应用多重连接探针扩增法简便高效检测Prader-Willi综合征的基因缺失(英文)

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北京大学学报（医学版） 2005年第1期37卷 64-67页

作者： Va lip Department of Laboratory Medicine

Objective: Prader-Willi s.ndrome (PWs. is.ch.racterized by s.vere h.potonia and feeding difficulties.in early infancy, followed by exces.ive eating and gradual development of morbid obes.ty in later infancy or early ch.ldh.od. Patients.with.PWs.are often too young to manifes. s.fficient features.or h.ve atypical findings. making genetic tes.ing important to confirm th. diagnos.s.of PWs. Approximately 99% of patients.with.PWs.h.ve a diagnos.ic abnormality in th. parent-s.ecific meth.lation imprint with.n th. Prader-Willi critical region (PWCR) at ch.omos.me 15q11.2-q12. Of th.m, 70% h.ve a paternal deletion; 25% h.ve a maternal uniparental dis.my (UPD); and h.ve a mutation in th. imprinting center. Meth.ds. Current tech.iques.can identify a diagnos.ic abnormality, s.ch.as.paternal deletion or maternal UPD for mos. of patients.with.PWs. but th.y are labor-intens.ve and cos.-expens.ve. Multiplex ligation-dependent probe amplification (MLPA) is.a novel, s.mple, and cos.-effective tech.ique for analys.s.of relative quantification in a s.ngle as.ay, wh.ch.h.s.recently been applied for th. detection of genomic deletions. duplications. and amplifications.in a variety of genes. Res.lts. s.x out of 20 patients.referred for genetic diagnos.s.of PWs.were found to h.ve a deletion by MLPA, confirmed by FIs.0}and DNA meth.lation analys.s.with.100% concordance. Conclus.on: MLPA’s.h.gh.s.ns.tivity and s.ecificity for deletion detection is.th. s.me as.FIs.0}or s.uth.rn blot bas.d analys.s. Additional collaborative effort for developing and validating th. complete MLPA-PWs.as.ay, for not only detecting deletion but als. identifying meth.lation abnormality, is.on going.

关键词： Prader-Willi综合征多重连接探针扩增法基因缺失遗传筛查

Nutrient compos.tion of pill millipede manure of th. Wes.ern Gh.ts. India

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Journal of Fores.ry Res.arch 2013年第3期24卷 539-545页

作者： Kandikere R. s.idh.r Bombrana s. Kadamannaya Kis.0}re s. Karamch.nd Department of Bios.iences Mangalore University MangalagangotriMangalore 574 199 Karnataka India Department of Zoology Field Marshal K.M. Cariappa Mangalore University CollegeMadikeri 571 201 Karnataka India

Nutrient compos.tion of th. manure of four pill millipedes.（Arth.os.3}aera dalyi, ,4. davis.ni, ,4. fumos. and,4, magna） inh.biting in s.mi-evergreen fores.s.and plantations.of th. Wes.ern Gh.ts.of s.uth.es. India was.evaluated. Th. quantity and quality of fecal pellets.differed between millipedes.and th.ir h.bitats.（fores. and plantation）. Organic carbon content in manure was.lower in plantations.th.n in fores.s. wh.le nitrogen content was.elevated in plantations. Th. carbon to nitrogen （C/N） ratio of manure was.lower in plantations.compared to fores.s. Th. phos.3}orus.content in manure was.elevated in plantations.in all except for A. dalyi. Calcium content of manure was.increas.d in plantations.th.n in fores.s. Th. contents.of magnes.um, potas.ium and phenolics.in manure s.0}wed varied res.lts. Th. mas. of fecal pellets.was.correlated only with.volume in fores.s.（r=0.882; p 〈0.01） and ph in plantations.（r=0.616; p 〈0.05）, wh.le th. volume of fecal pellets.was.correlated with.nitrogen content in fores.s.（r=0.751; p 〈0.01） and cal- cium in plantations.（=0.619; p 〈0.05）. Th. conductivity was.pos.tively correlated with.phos.3}orus.and potas.ium, wh.le magnes.um was.negatively correlated in fores.s.as.well as.plantations. Potas.ium and magnes.um were negatively correlated in fores.s.（r=0.920; p〈0.001） and plantations.（t=0.692; p 〈0.05）. Overall, th. phys.coch.mical ch.racteris.ics.and nutrient compos.tion of fecal pelets.differed between millipedes.as.well as.h.bitats. Th. low carbon to nitrogen ratio and th. increas.d nitrogen, phos.3}orus.and calcium content in th. manure of millipedes.inh.biting in plantations.indicates.pos.ibilities.for s.cces.fully employing th.m for in s.tu compos.ing of fores. or plantation res.dues.

关键词： Arth.os.1}aera fecal pellets fores.s manure organic farm-ing pill millipedes plantations Wes.ern Gh.ts

Development of s.is.ic force requirements.for buildings.in Taiwan

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Earth.uake Engineering and Engineering Vibration 2009年第3期8卷 349-358页

作者： Juin-Fu Ch.i Ts.ng-jen Teng Keh.Ch.uan Ts.i Center for Res.arch.on Earth.uake Engineering

Th.s.paper des.ribes.s.atic and dynamic procedures.to calculate s.is.ic demand s.ecified by th. current s.is.ic des.gn code for buildings.in Taiwan, wh.ch.was.is.ued in 2005. For des.gn levels.with.a return period of 475 years. th. des.gn s.ectral res.ons. acceleration can be developed for general s.tes. near-fault s.tes.and Taipei Bas.n. In addition, in order to prevent building collaps. during extremely large earth.uakes.and yielding of s.ructural components.and elements.during frequent s.all earth.uakes. th. required s.is.ic demands.at th. maximum cons.dered earth.uake level （MCE, 2%/50 years. and operational level are als. included in th. new s.is.ic des.gn *** dynamic analys.s.procedures. both.th. res.ons. s.ectrum meth.d and time h.s.ory meth.d are s.ecified in th. new s.is.ic des.gn code. Finally, procedures.to generate s.ectrum compatible ground motions.for time h.s.ory analys.s.are illus.rated in th.s.paper.

关键词： building code s.is.ic force requirement des.gn s.ectrum s.ectrum compatible des.gn ground motion s.te effect near-fault bas.n effect

Effect of Plas.a on th. Zeta Potential of Cotton Fabrics

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Plas.a s.ience and Tech.ology 2013年第5期15卷 455-458页

作者： A. RAs.0}DI s. s.0}h.DI M. Gh.RANNEVIs. s. DALALs.0}RIFI J. WIENER Department of Textile Faculty of Engineering Science and Research Branch Islamic Azad University Department of Textile Faculty of Engineering Islamic Azad University Arak Branch Plas.a phys.cs.Res.arch.Center Science and Research Branch Islamic Azad University Department of Textile Ch.mis.ry Faculty of Textile Technical University of Liberec

In th.s.work, th. effect of a low-temperature plas.a on th. zeta potential of cotton fabric was.s.udied. Th. s.lver particle abs.rption on cotton fabric wh.n modified by a low-temperature plas.a was.als. inves.igated. Th. modification cons.s.ed of plas.a pre functionalization followed by a one-s.ep wet treatment with.s.lver nitrate s.lution. Th. proces. was.performed in a low-temperature plas.a medium, us.ng a magnetron s.uttering device. Oxygen and nitrogen were us.d as.working gas.s.in th. s.s.em, and th. res.lts.were compared. After preparing th. s.mples. th. zeta potentials.of th. untreated and plas.a-treated cotton under a cons.ant ph value s.lution were es.imated and compared. Als., Fourier trans.orm infrared s.ec tros.opy （FTIR） was.us.d to examine th. functional groups.of th. corres.onding s.mples. Th. amounts.of s.lver abs.rption on plas.a treated and untreated cotton were examined us.ng th. energy dis.ers.ve X-ray （EDX） meth.d. Th. res.lts.s.0}w th.t th. amount of zeta potential for th. nitrogen plas.a treated s.mple is.les. and th. abs.rption of s.lver particles.by cotton can be increas.d s.rongly with.nitrogen plas.a treatment.

关键词： plas.a zeta-potential fabric

Data-driven s.mulations.of Magnetic Field Evolution in Active Region 11429:Magneto-frictional Meth.d Us.ng PENCIL CODE

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Res.arch.in As.ronomy and As.rophys.cs 2024年第2期24卷 74-82页

作者： P.Vemareddy Jorn Warnecke ph.A.Bourdin Indian Ins.itute of As.rophys.cs Sarjapur roadII BlockKoramangalaBengaluru-560034India Max-Planck-Ins.itut für s.nnens.s.emfors.h.ng Justus-von-Liebig-Weg 3D-37077 GöttingenGermany Ins.itute of phys.cs University of GrazUniversitätsplatz 5A-8010 GrazAustria

Coronal magnetic fields.evolve quas.-s.atically over long times.ales.and dynamically over s.0}rt *** of now th.re exis. no regular meas.rements.of coronal magnetic fields.and th.refore generating th. coronal magnetic field evolution us.ng obs.rvations.of th. magnetic field at th. photos.6}ere is.a fundamental requirement to unders.anding th. origin of trans.ent phenomena from s.lar active regions.ARs..Us.ng th. magneto-friction(MF)approach.we aim to s.mulate th. coronal field evolution in th. s.lar AR *** MF meth.d is.implemented in th. open s.urce PENCIL CODE along with.a driver module to drive th. initial field with.different boundary conditions.pres.ribed from obs.rved vector magnetic fields.at th. *** order to work with.vector potential and th. obs.rvations.we pres.ribe th.ee types.of bottom boundary drivers.with.varying free-magnetic *** MF s.mulation reproduces.th. magnetic s.ructure,wh.ch.better match.s.th. s.gmoidal morphology exh.bited by Atmos.6}eric Imaging As.embly(AIA)images.at th. pre-eruptive *** found th.t th. already s.0}ared field furth.r driven by th. s.0}ared magnetic field will maintain and furth.r build th. h.gh.y s.0}ared coronal magnetic configuration,as.s.en in AR ***-driven MF s.mulation is.a viable tool to generate th. coronal magnetic field evolution,capturing th. formation of th. twis.ed flux rope and its.eruption.

关键词： s.n corona-s.n evolution-s.n magnetic fields.s.n photos.0}ere