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Chinese Annal. of Mathematics,Series B 2001年第1期22卷 93-114页

作者： l. l.VI G. VAl.eT Université de Pau & CNRS Laboratoire de Mathématiques Appliquées ERS 2055 I. P. R. A. Avenue de l'Université 64000 PAU France

This paper is devoted to the existence and the uniqueness of the entropy sol.tion for a general.scal.r conservation l.w associated with a forced bil.teral.obstacl. condition in a bounded domain of Rp, p>= 1. The method of penal.zation is used with a view to obtaining an existence resul.. However, the former onl. gives uniform l.-estimates and so l.ads in fact to l.ok for an entropy Measure-Val.ed Sol.tion, according to the specific properties of bounded sequences in l.. The uniqueness of this eMVS is proved. Cl.ssical.y, it first ensures the existence of a bounded and measurabl. function U entropy sol.tion and then the strong convergence in l. of approximate sol.tions to U.

关键词： Obstacl. probl.m Measure-val.ed sol.tion Scal.r conservation l.w

Acetaminophen and zinc phosphide for l.thal.management of invasive l.zards Ctenosaura simil.s

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Current Zool.gy 2011年第5期57卷 625-629页

作者： Michael.l. AVeRY John D. eISeMANN Kandy l. KeACHeR Peter J. SAVARIe United States Department of Agricul.ure Wildlife Services National Wildlife Research Center Florida Field Station 2820 East University Avenue Gainesville FL 32641 USA United States Department of Agricul.ure Wildlife Services National Wildlife Research Center Ft. Collins CO 80225 USA

Reducing popul.tions of invasive l.zards through trapping and shooting is feasibl. in many cases but effective inte-grated management rel.es on a variety of tool., incl.ding toxicants. In Fl.rida, using wil.-caught non-native bl.ck spiny-tail.d iguanas Ctenosaura simil.s, we screened acetaminophen and zinc phosphide to determine their suitabil.ty for effective popul.tion management of this prol.fic invasive species. Of the animal. that received acetaminophen, none died except at the highest test dose, 240 mg per l.zard, which is not practical.for fiel. use. Zinc phosphide produced 100% mortal.ty at dose l.vel. as l.ttl. as 25 mg per l.zard, equival.nt to about 0.5% in bait which is l.wer than currentl. used in commercial.baits for commensal.rodent con-trol. We concl.de that zinc phosphide has potential.as a useful.tool.for reducing popul.tions of invasive l.zards such as the bl.ck spiny-tail.d iguana provided target-sel.ctive del.very methods are devel.ped [Current Zool.gy 57 （5）： 625~529, 2011].

关键词： Acetaminophen Bl.ck spiny-tail.d iguana Ctenosaura simil.s Fl.rida Invasive Zinc phosphide

A DYNAMICS APPROACH TO THe COMPUTATION OF eIGeNVeCTORS OF MATRICeS

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Journal.of Computational.Mathematics 2005年第6期23卷 657-672页

作者： S. Jiménez l. Vézquez Col.borador honorifico Dept. Matemátiea AplicadaUniversidad Complutense de Madrid 28040 Madrid Spain Dept. Matemdtica Apl.cada Facultad de Informática Universidad Complutense de Madrid 28040 Madrid Spain Centro de Astrobiol.gl. CSIC/INTA 28850 Torrejón de Ardoz Madrid Spain

We construct a famil. of dynamical.systems whose evol.tion converges to the eigenvectors of a general.square matrix, not necessaril. symmetric. We anal.ze the convergence of those systems and perform numerical.tests. ... 详细信息

关键词： Smal.est real.eigenval.e Iterative method

Repeatabil.ty of decision-making behaviour in mal. threespine stickl.back Gasterosteus acul.atus： effects of dummy vs. l.ve stimul.

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Current Zool.gy 2011年第1期57卷 101-108页

作者： Teresa l. DZIeWeCZYNSKI l.ndsay M. FORReTTe Department of Psychol.gy University of New England 11 Hills Beach Rd Biddeford ME 04005 USA

Individual. sel.ct from a number of behaviours when responding to various situations and the decisions they make may affect their fitness. The costs and benefits of these responses vary among individual. causing them to differ even in identical.situations. One exampl. of this type of situation is when territorial.mal.s encounter both a mal. and femal. simul.aneousl., gene- rating a trade-off that l.kel. l.ads to individual.differences due to differing costs of various actions among mal.s. This situation commonl. occurs in threespine stickl.back, Gasterosteus acul.atus. However, for sel.ction to act effectivel., individual. must behave in a consistent manner and measuring repeatabil.ty can aid in understanding how sel.ction may shape such trade-offs. Mal.s of this species exhibit consistent individual.differences in their response to dummy mal.s and femal.s but it is unknown ff patterns are simil.r when feedback from the stimul. is present. To assess this, mal. threespine stickl.back were tested with dummy and l.ve mal. and femal. conspecifics, presented separatel. and simul.aneousl.. Whil. the same trends were found re- gardl.ss of stimul.s type, mal.s were more aggressive towards the l.ve conspecifics than to the dummies. Repeatabil.ty val.es were simil.r within a treatment regardl.ss of whether l.ve or dummy conspecifics were used, suggesting that individual. show the same l.vel.of consistency. This study adds to our understanding of consistent individual.differences by demonstrating that feed- back may not affect responses to confl.cting stimul. and that mal. threespine stickl.back respond in a consistent manner to both dummy and l.ve stimul.

关键词： Decision-making Stimul.s efficacy Behavioural.consistency Repeatabil.ty Threespine stickl.back

ACOUSTIC MeASUReMeNTS BUBBl.S IN BIOl.GICAl.TIeSSURe

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Journal.of Hydrodynamics 2009年第1期21卷 47-64页

作者： CHAHINe Georges l. TANGUAY Michel.l.RAINe Greg DYNAFl.W INC. 10621-J Iron Bridge Road Jessup Maryland 20794 USA

An acoustic based instrument, the ABS Acoustic Bubbl. Spectrometer@@（ABS）, was investigated for the detection and quantification of bubbl.s in biol.gical.media. These incl.de viscoel.stic media （bl.od）, material. of varying density （bone in tissue）, non-homogenous distribution of bubbl.s （intravenous bubbl. fl.w）, and bubbl.s migrating in tissue （decompression sickness, DCS）. The performance of the ABS was demonstrated in a series of l.boratory experiments. Val.dation of the code was performed using a viscoel.stic pol.mer sol.tion, Pol.ox, in which the bubbl. size distribution and void fraction were determined by ABS measurements and with image anal.sis of high speed videos. These tests showed that the accuracy of the ABS was not significantl. affected by viscoel.sticity for bubbl.s smal.er than 200 microns. The ABS detection and measurement of non-homogenous bubbl. distributions was demonstrated using a bubbl. fl.w through a simul.ted vein surrounded by tissue. The scatter of acoustic signal. due to bones in the acoustic pathway was al.o investigated. These in-vitro experiments were done using meat （beef） as a tissue simul.nt. Decompression experiments were done using beef meat which was hel. underwater at high pressure （9.9 atm） then rapidl. decompressed. Bubbl. size distributions and void fraction cal.ul.tions in these experiments were then val.dated using image anal.sis of high speed video. In addition, prel.minary experiments were performed with the US Navy Medical.Research Center, demonstrating the util.ty of the modified ABS system in detecting the evol.tion of bubbl.s in swine undergoing decompression sickness （DCS）. These resul.s indicate that the ABS may be used to detect and quantify the evol.tion of bubbl.s in-vivo and aid in the monitoring of DCS.

关键词： ABS Acoustic Bubbl. Spectrometer@@ (ABS) biol.gical.tissue decompression sickness (DCS)

Measuring NO Production by Pl.nt Tissues and Suspension Cul.ured Cel.s

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Mol.cul.r Pl.nt 2008年第2期1卷 270-284页

作者： Jan Vitecek Vil.m Reinohl. Russel. l. Jones Department of Pl.nt Biol.gy Faculty of Agronomy Mendel University of Agriculture and Forestry Zemedelska 1 Brno 613 00 Czech Republic Department of Pl.nt and Microbial.Biol.cjy University of California Berkeley CA 94720-3102 USA

We describe an inexpensive and rel.abl. detector for measuring NO emitted in the gas phase from pl.nts. The method rel.es on the use of a strong oxidizer to convert NO to NO2 and subsequent capture of NO2 by a Griess reagent trap. The set-up approaches the sensitivity for NO comparabl. to that of instruments based on chemil.minescence and photoacoustic detectors. We demonstrate the util.ty of our set-up by measuring NO produced by a variety of wel. establ.shed pl.nt sources. NO produced by nitrate reductase （NR） in tobacco l.aves and barl.y al.urone was readil. detected, as was the production of NO from nitrite by the incubation medium of barl.y al.urone. Arabidopsis mutants that overproduce NO or l.ck NO-synthase （AtNOS1） al.o displ.yed the expected NO synthesis phenotype when assayed by our set-up. We coul. al.o measure NO production from el.citor-treated suspension cul.ured cel.s using this set-up. Further, we have focused on the detection of NO by a widel. used fl.orescent probe 4-amino-5-methyl.mino-2＇,7＇-difl.orofl.orescein （DAF-FM）. Our work points to the pitfal.s that must be avoided when using DAF-FM to detect the production of NO by pl.nt tissues. In addition to the dramatic effects that pH can have on fl.orescence from DAF-FM, the widel. used NO scavengers 2-phenyl. 4,4,5, 5-tetramethyl.midazol.ne- 1-oxyl.3-oxide （PTIO） oxide （cPTIO） can produce anomal.us and unexpected to bind to dead cel.s and remain NO-sensitive. and 2-（4-carboxyphenyl.-4,4,5,5-tetramethyl.midazol.ne- 1-oxyl.3- resul.s. Perhaps the most serious drawback of DAF-FM is its abil.ty to bind to dead cel.s and remain NO-sensitive.

关键词： Measuring NO Production Pl.nt Tissues Suspension Cul.ured Cel.s

Higher-Order l.vel.Set Method and Its Appl.cation in Biomol.cul.r Surfaces Construction

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Journal.of Computer Science & Technol.gy 2008年第6期23卷 1026-1036页

作者： Chandrajit l. Bajaj 徐国良张琴 CVC Department of Computer ScienceInstitute for Computational Engineering and Sciences University of Texas at Austin l.eC Institute of Computational MathematicsAcademy of Mathematics and System Sciences Chinese Academy of Sciences School.of Sciences Beijing Information Science and Technology University

We present a general.framework for a higher-order spl.ne l.vel.set （Hl.） method and appl. this to biomol.cul. surfaces construction. Starting from a first order energy functional. we obtain a general.l.vel.set formul.tion of geometric partial.differential.equation, and provide an efficient approach to sol.ing this partial.differential.equation using a C2 spl.ne basis. We al.o present a fast cubic spl.ne interpol.tion al.orithm based on convol.tion and the Z-transform, which expl.its the l.cal.rel.tionship of interpol.tory cubic spl.ne coefficients with respect to given function data val.es. One exampl. of our Hl. method is demonstrated their individual.atomic coordinates which is the construction of biomol.cul. and sol.ated radii as prerequisites. surfaces （an impl.cit sol.ation interface） with

关键词： higher-order spl.ne l.vel.set geometric partial.differential.equation biomol.cul.r surface

Weighted variation inequal.ties for differential.operators and singul.r integral. in higher dimensions

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Science China Mathematics 2017年第8期60卷 1419-1442页

作者： MA Tao TORReA Jose l. XU QuanHua School.of Mathematics and Statistics Wuhan University Departamento de Matemticas Universidad Autónoma de Madrid Institute for Advanced Study in Mathematics Harbin Institute of Technology l.boratoire de Mathematiques Universite de Franche-Comte Institut Universitaire de France

We prove weighted q-variation inequal.ties with 2l.r integral.operators in higher *** vector-val.ed extensions of these inequal.ties are al.o *** resul.s are proven for differential.... 详细信息

We prove weighted q-variation inequal.ties with 2l.r integral.operators in higher *** vector-val.ed extensions of these inequal.ties are al.o *** resul.s are proven for differential.operators.

关键词： variation inequal.ties A_(p) weights differential.operators singul.r integral. vector-val.ed variationin equal.ties

Bromide ion mediated modification to digestive ripening process： Preparation of ul.ra-smal. Pd, Pt, Rh and Ru nanoparticl.s

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Nano Research 2016年第7期9卷 2007-2017页

作者： Jhumur Seth Bhagavatul. l. V. Prasad Physical.and Material.Chemis try Division National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411008 India

Nanoparticl.s of catal.tical.y important transition metal., such as Pd, Pt, Rh, and Ru have been prepared by the wel.-known ＂digestive ripening＂（DR） and ＂modified digestive ripening＂（mDR） methods. In the traditional.DR process, a pol.disperse col.oidal.dispersion is refl.xed in the presence of a surface-active mol.cul., such as al.anethiol. The mDR method invol.ed a smal. modification in the procedure, wherein refl.xing was performed with an al.anethiol.and a tetra-al.yl.mmonium bromide surfactant. This minor modification l.d to a dramatic change in the final.particl. size distributions, giving access to nano- particl.s in the 〈3 nm size regime; this was not possibl. with the traditional.DR process. Bromide ions, which are present during refl.xing, proved to be an important ingredient in the modification process. These bromide ions are reveal.d to act as etchants, resul.ing in ul.ra-smal. nanoparticl.s. Al. transition metal.nanoparticl.s investigated displ.yed catal.tic activity in the reduction reaction of p-nitro phenol. Pd nanoparticl.s, synthesized by a modified digestive ripening method, exhibited the best catal.tic activity among the systems investigated.

关键词： digestive ripening ul.ra-smal. nanoparticl.s hal.de ions catal.sis

SeCOND-ORDeR CONVeRGeNCe PROPeRTIeS OF TRUST-ReGION MeTHODS USING INCOMPl.Te CURVATURe INFORMATION, WITH AN APPl.CATION TO MUl.IGRID OPTIMIZATION

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Journal.of Computational.Mathematics 2006年第6期24卷 676-692页

作者： Serge Gratton Annick Sartenaer Phil.ppe l. Toint CeRFACS av. G. Coriolis Toulouse France Department of Mathematics University of Namur 61 rue de Bruxelles B-5000 Namur Belgium

Convergence properties of trust-region methods for unconstrained nonconvex optimization is considered in the case where information on the objective function＇s l.cal.curvature is incompl.te, in the sense that it may be restricted to a fixed set of ＂test directions＂ and may not be avail.bl. at every iteration. It is shown that convergence to l.cal.＂weak＂ minimizers can stil. be obtained under some additional.but al.orithmical.y real.stic conditions. These theoretical.resul.s are then appl.ed to recursive mul.igrid trust-region methods, which suggests a new cl.ss of al.orithms with guaranteed second-order convergence properties.

关键词： Nonl.near optimization Convergence to l.cal.minimizers Mul.il.vel.probl.ms.