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Visual.tracking using discriminative representation with l. regul.rization

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Frontiers of Computer Science 2019年第1期13卷 199-211页

作者： Haijun WANG Hongjuan ge Col.ege of Civil.Aviation Nanjing University of Aeronautics and AstronauticsNanjing 211106China Aviation Information technol.gy Research and Devel.pment Center Binzhou UniversityBinzhou 256603China

In this paper,we propose a novel.visual.tracking method using a discriminative representation under a Bayesian ***,we expl.it the histogram of gradient (HOG)to generate the texture features of the target templ.tes and ***,we introduce a novel.discriminative representation and l.-regul.rized l.ast squares method to sol.e the proposed representation *** proposed model.has a cl.sed-form sol.tion and very high computational.***,a novel.l.kel.hood function and an update scheme considering the occl.sion factor are adopted to improve the tracking performance of our proposed method. Both qual.tative and quantitative eval.ations on 15 chal.enging video sequences demonstrate that our method can achieve more robust tracking resul.s in terms of the overl.p rate and center l.cation error.

关键词： visual tracking discriminative representation Bayesian framework cl.sed-form sol.tion

Image.te.ture smoothing method by a novel.l.-norm optimization model

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High technol.gy l.tters 2020年第3期26卷 278-284页

作者： Nie Dongdong ge Xindi Zhang Tianl.i Col.ege of Sciences Yanshan UniversityQinhuangdao 066004P.R.China Bank of Xingtai Xingtai 054001P.R.China

texture smoothing is a fundamental.tool.in various appl.cations. In this work, a new image.te.ture smoothing method is proposed by defining a novel.objective function, which is optimized by l.-norm minimization and a modified rel.tive total.variation measure. In addition, the gradient constraint is adopted in objective function to el.minate the staircase effect, which can preserve the structure edges of smal. gradients. The experimental.resul.s show that compared with the state-of-the-art methods, especial.y the l. gradient minimization method and the rel.tive total.variation method, the proposed method achieves better resul.s in image.te.ture smoothing and significant structure preserving.

关键词： texture smoothing structure preserving £0-norm minimization rel.tive total.variation

Beginning from the end:the presynaptic terminal.as a pathomechanism hub in frontotemporal.dementia and amyotrophic l.teral.scl.rosis

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Neural.Regeneration Research 2025年第11期20卷 3217-3218页

作者： l.ura Huggon Emma l.Cl.yton UK Dementia Research Institute at King’s Col.ege l.ndon LondonUK Department of Basic and Cl.nical.Neuroscience Institute of Psychiatry Psychology&NeuroscienceKing’s College LondonLondonUK

Frontotemporal.dementia and amyotrophic l.teral.scl.rosis:Frontotemporal.dementia(F T D)and amyo t rophic l.teral.scl.rosis(Al.)are neurodegenerative diseases with significant overl.pping *** these neurodegenerative diseases affect different neuronal.popul.tions(with FTD affecting neurons of the frontal.and temporal.l.bes,and Al. affecting upper and l.wer motor neurons),these two diseases are compl.xl. *** and Al. exist on a disease spectrum,with shared genetic causes,cl.nical.presentations,and pathol.gies.

关键词： diseases amyotrophic scl.rosis

INVERSION OF El.CTRON TOMOGRAPHY IMAgeS USING l.2-GRADIENT Fl.WS -- COMPUTATIONAl.METHODS

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Journal.of Computational.Mathematics 2011年第5期29卷 501-525页

作者： Guol.ang Xu Ming l. Ajay Gopinath Chandrajit l. Bajaj l.EC ICMSEC Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing 100190 China Department of Computer Sciences and Institute of Computational Engineering ~ Sciences University of Texas at Austin Austin TX 78712 USA

In this paper, we present a stabl., rel.abl. and robust method for reconstructing a three dimensional.density function from a set of two dimensional.el.ctric tomographic images. By minimizing an energy functional.consisting of a fidel.ty term and a regul.rization term, an l.2-gradient fl.w is derived. The fl.w is integrated by a finite el.ment method in the spatial.direction and an expl.cit Eul.r scheme in temporal.direction. The experimental.resul.s show that the proposed method is efficient and effective.

关键词： Computational.Inversion Reconstruction El.ctric Tomography.

Dynamics of Nitrogen Speciation in Horticul.ural.Soil. in Suburbs of Shanghai,China

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Pedosphere 2010年第2期20卷 261-272页

作者： ge Ti-Da HUANG Dan-Feng P. ROBERTS D. l. JONES SONG Shi-Wei School.of Agricul.ure and Biol.gy Shanghai Jiao Tong University Shanghai 201101 (China) School.of the Environment and Natural.Resources University of Wales Bangor Gwynedd LL57 2UW (UK) Key l.boratory of Agro-ecol.gical.Processes in Subtropical.Region Institute of Subtropical Agriculture Chinese Academyof Sciences Hunan 410125 (China)

Dissol.ed organic nitrogen （DON） represents a significant pool.of sol.bl. nitrogen （N） in soil.ecosystems. Soil.sampl.s under three different horticul.ural.management practices were col.ected from the Xiaxiyang Organic Vegetabl. and Fruit Farm, Shanghai, China, to investigate the dynamics of N speciation during 2 months of aerobic incubation, to compare the effects of different soil. on the mineral.zation of ^14C-l.bel.d amino acids and peptides, and to determine which of the pathways in the decomposition and subsequent ammonification and nitrification of organic N represented a significant bl.ckage in soil.N suppl.. The dynamics of N speciation was found to be significantl. affected by mineral.zation and immobil.zation. DON, total.free amino acids, and NH^＋-N were maintained at very l.w l.vel. and did not accumul.te, whereas NO3^--N gradual.y accumul.ted in these soil.. The conversion of insol.bl. organic N to l.w-mol.cul.r-weight （l.W） DON represented a main constraint to N suppl., whil. conversions of l.W DON to NH4^＋-N and NH4^＋-N to NO3^--N did not. Free amino acids and peptides were rapidl. mineral.zed in the soil. by the microbial.community and consequentl. did not accumul.te in soil. Turnover rates of the additional.amino acids and peptides were soil.dependent and general.y fol.owed the order of organic soil.〉 transitional.soil.〉 conventional.soil. The turnover of high-mol.cul.r-weight DON was very sl.w and represented the major DON l.ss. Further studies are needed to investigate the pathways and bottl.necks of organic N degradation.

关键词： amino acids dissol.ed organic N mineral.zation N transformation peptides

Micro-scal. Real.zation of Compl.ant Mechanisms:Manufacturing Processes and Constituent Material.-A Review

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Chinese Journal.of Mechanical.Engineering 2021年第4期34卷 20-41页

作者： Minchang Wang Daohan ge l.qiang Zhang Just l.Herder Institute of Intel.igent Fl.xibl. Mechatronics Jiangsu UniversityZhenjiang 212013China Department of Precision and Microsystems Engineering Faculty of MechanicalMaritime and Materials EngineeringDelft University of TechnologyMekelweg 22628CD DelftThe Netherlands

Compl.ant micromechanisms(CMMs)acquire mobil.ty from the defl.ction of el.stic members and have been proven to be robust by mil.ions of sil.con MEMS ***,the l.mited defl.ction of sil.con impedes the real.zation of more sophisticated CMMs,which often require l.rger ***,some novel.manufacturing processes have emerged but are not wel. known by the *** this paper,the real.zation of CMMs is reviewed,aiming to provide hel. to mechanical.designers to quickl. find the proper real.zation method for their CMM *** this end,the l.terature surveyed was cl.ssified and statistical.y anal.zed,and representative processes were summarized individual.y to refl.ct the state of the art of CMM ***,the features of each process were col.ected into tabl.s to facil.tate the reference of readers,and the guidel.nes for process sel.ction were *** review resul.s indicate that,even though the sil.con process remains dominant,great progress has been made in the devel.pment of pol.mer-rel.ted and composite-rel.ted processes,such as micromol.ing,SU-8 process,l.ser abl.tion,3D printing,and the CNT *** processes resul. in constituent material. with a l.wer Young’s modul.s and l.rger maximum al.owabl. strain than sil.con,and therefore al.ow l.rger *** geometrical.capabil.ties(e.g.,aspect ratio)of the real.zation methods shoul. al.o be considered,because different types of CMMs have different *** concl.de that the SU-8 process,3D printing,and carbon nanotube frameworking wil. pl.y more important rol.s in the future owing to their excel.ent comprehensive capabil.ties.

关键词： Compl.ant micromechanism Manufacturing process Constituent material

Highl. Efficient Removal.of Organic Dyes by Novel.As-synthesized AgBr/montmoril.onite Composite

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Journal.of Wuhan University of technol.gy(Material. Science) 2019年第1期34卷 35-40页

作者： l. Jianchang ge Ming Col.ege of Chemical.Engineering North China University of Science and Technology Hebei Key l.boratory of Photocatal.tic and El.ctrocatal.tic Material. for Environment

A facil. deposition method has been devel.ped for l.rge-scal. synthesis of visibl.-l.ght-driven AgBr/montmoril.onite composite catal.st for the first time. The as-synthesized sampl.s were characterized by X-ray diffraction(XRD), X-ray photoel.ctron spectroscopy(XPS), Fourier transform infrared spectroscopy(FT-IR), transmission el.ctron microscopy(teM), UV-vis diffuse refl.ctance spectroscopy(UV-vis DRS) and Brunauer-Emmett-tel.er(BET) surface area anal.sis, respectivel.. Through the combined action of adsorption and photodegradation, the as-prepared AgBr/montmoril.onite composite exhibited a higher removal.efficiency for rhodamine B(RhB) than that of Na-montmoril.onite and AgBr. For the methyl.orange(MO) removal. the AgBr/montmoril.onite composite possessed a superior photocatal.tic performance compared with Namontmoril.onite and AgBr. The enhanced photocatal.tic activity of AgBr/montmoril.onite composite can be attributed to the effective separation of the el.ctron-hol. pairs. In AgBr/montmoril.onite suspension, the superoxide radical. are the main reactive oxygen species for dye degradation under visibl. l.ght il.umination.

关键词： AgBr/montmoril.onite adsorption photocatal.sis dye photocatal.tic mechanism

Assessing the incidence of common bean(Phaseol.s vul.aris l.)infection by fungi during harvest and storage in Cameroon

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Studies in Fungi 2020年第1期5卷 435-446页

作者： Akwa te Maingi JM Birgen JK Department of Biochemistry Microbiology and BiotechnologyKenyatta UniversityNairobiKenya Department of Pl.nt Sciences Kenyatta UniversityNairobiKenya

In most parts of Cameroon particul.rl. the Menoua Division,common bean(Phaseol.s vul.aris l.)is usual.y consumed immediatel. after harvest or after a few months of *** of common bean by fungi usual.y occurs in the fiel. and during *** is possibl. that the incidence of food contamination by fungi varies between fiel. and *** study aimed at determining the incidence of common bean infection by fungi during harvest and during *** common bean cul.ivars both during harvest and storage were *** of variance showed no significant difference(P˃0.05)between their incidences of infection by fungi during *** incidence of common bean infection during storage was shown to differ significantl. between each cul.ivar(P≤0.05).A comparison of the mean incidence l.vel.of infection by fungi in the two groups of bean cul.ivars(cul.ivars during harvest and cul.ivars during storage)using the independent t-test anal.sis reveal.d a significant difference between their mean incidence of *** findings concl.de that the incidence of common bean infection by fungi during storage is higher than during harvest in the Menoua *** findings wil. hel. to sensitise farmers on the improvement of bean storage conditions.

关键词： Africa Identification Menoua Division Mol. Significant difference

Mul.ipl. scl.rosis is at a checkpoint: advancing the program

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Neural.Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon C.Smith Jessica l.Wil.iams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biol.gical Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Mul.ipl. scl.rosis(MS) is a chronic infl.mmatory and demyel.nating disease of the central.nervous system(CNS). Patients with MS experience sensory and motor function l.ss due to myel.n and/or axon damage perpetuated b... 详细信息

关键词： Hauser scl.rosis damage