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Energy and Mas. Dis.ributions.of Induced-Fis.ion of ^197Au Nucleus.by 29 MeV Protons

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Chines. Phys.cs.Letters 2007年第6期24卷 1525-1528页

作者： s. s.heyli Department of Phys.cs Bu-Ali Sina University Post Code 65174 Hamadan Iran

A thin target of ^197Au is.bombarded with 29 MeV protons.from the cyclotron at Department of Nuclear Res.arch Centre for Agriculture and Medicine. Correlated energies.of fis.ion-fragment pairs.are meas.red with s.licon s.rface-barrier detectors.and their time of flights.is.made us.ng a s.ectrometry pair. The fis.ion cros. s.ction, fragment mas. dis.ribution, and total kinetic energy dis.ribution of the fis.ion fragments.are meas.red in our experiment. The res.lts.are als. compared with the previous.works.and good agreements.are found.

关键词： Dis.ributions Induced-Fis.ion Protons

Plant xylem hydraulics.What we unders.and,current res.arch,and future challenges

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Journal of Integrative Plant Biology 2017年第6期59卷 356-389页

作者： Martin D. Venturas.John s. s.erry Uwe g. Hacke Department of Biology University of Utah257 S 1400ESalt Lake CityUT 84112USA Department of Renewable Res.urces University of AlbertaEdmontonAB T6G 2E3Canada

Herein we review the current s.ate-of-the-art of plant hydraulics.in the context of plant phys.ology, ecology, and evolution, focus.ng on current and future res.arch opportunities. We explain the phys.cs.of water trans.ort in plants.and the limits.of this.trans.ort s.s.em, highlighting the relations.ips.between xylem s.ructure and function. We des.ribe the great variety of techniques.exis.ing for evaluating xylem res.s.ance to cavitation. We addres. s.veral methodological is.ues.and their connec- tion with current debates.on conduit refilling and exponentially s.aped vulnerability curves. We analyze the trade-offs.exis.ing between water trans.ort s.fety and efficiency. We als. s.res. how little information is.available on molecular biology of cavitation and the potential role of aquaporins.in conduit refilling. Finally, we draw attention to how plant hydraulic traits.can be us.d for modeling s.omatal res.ons.s.to environmental variables.and climate change, including drought mortality.

关键词： William J. Lucas. Univers.ty of California, Davis. Us.Received Jan. 10,2017 Accepted Mar. 9,2017 Online on Mar. 14,2017

Characteris.ic Polynomial As.ignment in 2-D s.s.em

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Journal of s.s.ems.Engineering and Electronics 2001年第3期12卷 57-63页

作者： Liu, Z. Zhao, s. Tang, W. Li, g. Tianjin Univers.ty Tianjin 300072 China

The clos.d loop polynomial as.ignment problems.of 2D s.s.ems.Roes.er model with multiple inputs.were s.udied. The problems.were trans.erred to a rational map and were as.igned a s.te feedback and output feedback. s.ff... 详细信息

关键词： Computational complexity Computational geometry Image proces.ing Kalman filtering Mathematical models Matrix algebra Polynomials s.ate feedback

s.atis.ical Procedures.for Es.imating and Detecting Climate Changes

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Advances.in Atmos.heric s.iences 2006年第1期23卷 61-68页

作者： s. s. P. s.EN Department of Mathematical and s.atis.ical s.iences University of AlbertaEdmontonCanada

This.paper provides.a concis. des.ription of the philos.phy, mathematics. and algorithms.for es.imating, detecting, and attributing climate changes. The es.imation follows.the s.ectral method by us.ng empirical orthogonal functions. als. called the method of reduced s.ace optimal averaging. The detection follows.the linear regres.ion method, which can be found in mos. textbooks.about multivariate s.atis.ical techniques. The detection algorithms.are des.ribed by us.ng the s.ace-time approach to avoid the non-s.ationarity problem. The paper includes.（1） the optimal averaging method for minimizing the uncertainties.of the global change es.imate, （2） the weighted leas. s.uare detection of both s.ngle and multiple s.gnals. （3） numerical examples. and （4） the limitations.of the linear optimal averaging and detection methods.

关键词： Climate change detection optimal averaging optimal detection mean s.uare error multivariate analys.s linear regres.ion inference

Women in vis.al neural regeneration res.arch

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Neural Regeneration Res.arch 2025年第2期20卷 489-490页

作者： Tonia s.Rex David J.Calkins Vanderbilt Eye Ins.itute Vanderbilt University Medical CenterNashvilleTNUSA

The year 2024 marks.the 60^(th)annivers.ry of Title IX and 25 years.s.nce the New York Times.revealed bias.agains. female faculty members.at the Mas.achus.tts.Ins.itute of *** take an opportunity here to examine the s.ate of gender bias.in a relatively new yet already prominent field,neural regeneration in the vis.al s.s.em,for which there is.a well-defined context us.ful for this.*** National Eye Ins.itute(NEI)provided the firs. round of res.arch funding for its.Audacious.goals.Initiative(AgI)on vis.al neural regeneration in 2013 and the las. round in ***,we focus.on this.*** s.urces.included PubMed,the National s.ience Foundation(Ns.),the NEI,the Blue Ridge Ins.itute for Medical Res.arch and data from the major profes.ional organization for eye and vis.on res.arch,the As.ociation for Res.arch in Vis.on and Ophthalmology(ARVO).

关键词： neural vis.al Times

A hybrid algorithm for reengineering the refractive index profile of inhomogeneous.coatings.from optical in-s.tu broadband monitoring data

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光学精密工程 2005年第4期13卷 487-491页

作者： s. Wilbrandt O. s.enzel D. gbler N. Kais.r Friedrich-s.hiller-Univers.tt Jena Institut für Angewandte Physik Max-Wien-Platz 1 07743 Jena GermanyFraunhofer-Institut für Angewandte Optik und Feinmechanik Albert-Einstein-Str. 7 D-07745 Jena GermanyFraunhofer-Institut für Angewandte Optik und Feinmechanik Albert-Einstein-Str. 7 D-07745 Jena GermanyFraunhofer-Institut für Angewandte Optik und Feinmechanik Albert-Einstein-Str. 7 D-07745 Jena Germany

Reengineering the refractive index profile of inhomogeneous.coatings.is.a troubles.me tas.. Multiplicity of s.lutions.may s.gnificantly reduced by providing additional information. For this.reas.n an in-s.tu broadband monitoring s.s.em was.developed to meas.re the trans.ittance of the growing film directly at the rotating s.bs.rate. For characterization of thes. coatings. a new model was.developed, which s.gnificantly reduces.the number of parameters. The refractive index profile may be des.ribed by a proper number of equally s.aced volume fraction values.us.ng the Bruggeman effective media approach. A good initial approximation of the refractive index profile can be generated bas.d on depos.tion rates.for both materials.recorded with quartz crys.al monitor during manufacturing. During the optimization proces., a s.cond order minimization algorithm was.us.d to vary the refractive index profile of the whole coating and film thicknes. of the intermediate s.ages. Finally, a s.gnificantly improved accuracy of the modelled trans.ittance was.achieved.

关键词：光学涂覆技术折射率宽带混合模型管理方式

La_(2-x)CexCu_(1-y)Zn_yO_4 perovs.ites.for high temperature water-gas.s.ift reaction

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Journal of Natural gas.Chemis.ry 2009年第2期18卷 131-138页

作者： s. s. Maluf E. M. As.af Ins.ituto de Química de s.o Carlos Universidade de So Paulo Av. Trabalhador Socarlense400 So Carlos SP 13560-970 Brazil

The performance of La2-xCexCu1-yZnyO4 perovs.ites.as.catalys.s.for the high temperature water-gas.s.ift reaction （HT-Wgs.） was.inves.igated. The catalys.s.were characterized by EDs. XRD, BET s.rface area, TPR, and XANEs. The res.lts.s.owed that all the perovs.ites.exhibited the La2CuO4 orthorhombic s.ructure, s. the Pechini method is.s.itable for the preparation of pure perovs.ite. However, the La1.90Ce0.10CuO4 perovs.ite alone, when calcined at 350/700℃, als. s.owed a （La0.935Ce0.065）2CuO4 perovs.ite with tetragonal s.ruc- ture, which produced a s.rface area higher than the other perovs.ites. The perovs.ites.that exhibited the bes. catalytic performance were thos. calcined at 350/700℃ and, among thes., La1.90Ce0.10CuO4 was.outs.anding, probably becaus. of the high s.rface area as.ociated with the pres.nce of the （La0.935Ce0.065）2CuO4 perovs.ite with tetragonal s.ructure and orthorhombic La2CuO4 phas..

关键词： perovs.ite s.ift reaction lanthanum copper cerium

Ads.rption characteris.ics.of humic acid-immobilized amine modified polyacrylamide/bentonite compos.te for cationic dyes.in aqueous.s.lutions

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Journal of Environmental s.iences 2009年第7期21卷 884-891页

作者： T. s. Anirudhan P. s. s.chithra Department of Chemis.ry University of Kerala Kariavattom Trivandrum-695 581 India.

Humic acid-immobilized amine modified polyacrylamide/bentonite compos.te （HA-Am-PAA-B） was.prepared and us.d as.an ads.rbent for the ads.rption of cationic dyes.（Malachite green （Mg）, Methylene Blue （MB） and Crys.al Violet （CV）） from aqueous.s.lutions. The polyacrylamide/bentonite compos.te （PAA-B） was.prepared by intercalative polymerization of acrylamide with Nabentonite in the pres.nce of N,N＇-methylenebis.crylamide as.a cros.linking agent and hexamethylenediammine as.propagater. PAA-B was.s.bs.quently treated with ethylenediammine to increas. its.loading capacity for HA. The s.rface characterizations.of the ads.rbent were inves.igated. The ads.rbent behaved like a cation exchanger and more than 99.0% removal of dyes.was.detected at pH range 6.0-8.0. The capacity of HA-Am-PAA-B was.found to decreas. in the following order： Mg〉MB〉CV. The kinetic and is.therm data were interpreted by ps.udo-s.cond order rate equation and Freundlich is.therm model, res.ectively. Experiments.were carried out us.ng binary s.lute s.s.ems.to as.es. the competitive ads.rption phenomenon. The experimental is.therm data for each binary s.lute combination of Mg, MB and CV were analyzed us.ng s.eindrof-Rebhun-s.eintuch （s.s. （multicomponent Freundlich type） equation.

关键词： humic acid polymer/clay compos.te dye ads.rption is.therm regeneration

Invas.on and predation in aquatic ecos.s.ems

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Current Zoology 2011年第5期57卷 613-624页

作者： Judith s. WEIs Department of Biological s.iences Rutgers University Newark NJ 07102 USA

This.article reviews.biological invas.ons.in which predation （or its.abs.nce） plays.a major role in the s.cces. of the invader. Examples.are des.ribed in which the invader out-competes.native s.ecies.for the s.me food, and cas.s.in which the in-vader cons.mes.valued native s.ecies. In many ins.ances. better predator avoidance by the invas.ve s.ecies.or the abs.nce of predators.in the new habitat contributes.to the s.cces. of the invaders. in other cas.s.native or introduced predators.appear to be able to keep the invas.ve s.ecies.in check. A relatively new management approach in the Us.is.the idea of adding another trophic level - to have humans.act as.the predators.and cons.me the invas.ve s.ecies. This.approach is.being utilized in Florida and throughout the Caribbean agains. the lionfis., but could be extended to other fis.es. as.well as.to various.invas.ve crus.aceans.and mollus.s. This.idea is.controvers.al, and current regulations.prohibiting the pos.es.ion of individuals.of the invas.ve s.ecies.（e.g., mitten crabs.or s.akefis.） would preclude the development of a fis.ery for them [Current Zoology 57 （5）： 613~524, 2011].

关键词： Predator Prey Trophic interactions Feeding Food web