IMATION

作品数：26被引量：14H指数：2
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相关机构：兰州军区乌鲁木齐总医院更多>>
相关期刊：《Analysis in Theory and Applications》《Journal of Modern Physics》《Science China(Information Sciences)》《Journal of Systems Engineering and Electronics》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划北京市自然科学基金更多>>
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A NONLOCAL KRONECKER-BASIS-REPRESENTATION METHOD FOR LOW-DOSE CT SINOGRAM RECOVERY
《Journal of Computational Mathematics》2024年第4期1080-1108,共29页Jian Lu Huaxuan Hu Yuru Zou Zhaosong Lu Xiaoxia Liu Keke Zu Lin Li 
supported by the National Natural Science Foundation of China(Grant Nos.U21A20455,61972265,11871348);by the Natural Science Foundation of Guangdong Province of China(Grant No.2020B1515310008);by the Department of Education of Guangdong Province of China(Grant No.2019KZDZX1007);by the PolyU internal Grant No.P0040271;by the Pazhou Laboratory,Guangzhou,China(Grant No.PZL2021KF0017);by the Guangdong Key Laboratory of Intelligent Information Processing,China.
Low-dose computed tomography(LDCT)contains the mixed noise of Poisson and Gaus-sian,which makes the image reconstruction a challenging task.In order to describe the statistical characteristics of the mixed noise,we ad...
关键词：Low-dose computed tomography Kronecker-basis-representation Low-rank imation.Noise-generating-mechanism 
Optic Axes and Elliptic Cone Equation in Coordinate-Invariant Treatment
《Journal of Modern Physics》2022年第6期1001-1043,共43页Alfred Wünsche 
We derive for crystal optics in coordinate-invariant way the cone approximation of refraction vectors in the neighborhood of optic axes and determine its invariants and eigenvectors. It proved to describe an elliptic ...
关键词：Permittivity Tensor Principal Permittivities Three-Dimensional Operator of Wave Equation Operator Invariants Refraction Vector Ray Vector Cone Ap-proximation in Neighborhood of Optic Axis Conical Refraction 
FINITE ELEMENT EXTERIOR CALCULUS FOR EVOLUTION PROBLEMS
《Journal of Computational Mathematics》2017年第2期187-212,共26页Andrew Gillette Michael Hoist Yunrong Zhu 
Arnold, Falk, and Winther [Bull. Amer. Math. Soc. 47 （2010）, 281-354] showed that mixed variational problems, and their numerical approximation by mixed methods, could be most completely understood using the ideas a...
关键词：FEEC Elliptic equations Evolution equations Nonlinear equations Approx-imation theory Nonlinear approximation Inf-sup conditions A priori estimates. 
A Numerical Approach to Optimal Dividend Policies with Capital Injections and Transaction Costs被引量：1
《Acta Mathematicae Applicatae Sinica》2017年第1期221-238,共18页Zhuo JIN Hai-liang YANG G.YIN 
supported in part by Early Career Research Grant and Faculty Research Grant by The University of Melbourne;supported in part by Research Grants Council of the Hong Kong Special Administrative Region(project No.HKU 17330816);Society of Actuaries’Centers of Actuarial Excellence Research Grant;supported in part by U.S.Army Research Office under grant W911NF-15-1-0218
This work focuses on numerical methods for finding optimal dividend payment and capital injection policies to maximize the present value of the difference between the cumulative dividend payment and the possible capit...
关键词：CONTROL singular control dividend policy capital injection free boundary Markov chain approx-imation 
A note on semidefinite programming relaxations for polynomial optimization over a single sphere被引量：7
《Science China Mathematics》2016年第8期1543-1560,共18页HU Jiang JIANG Bo LIU Xin WEN ZaiWen 
supported by National Natural Science Foundation of China (Grant Nos. 11401364, 11322109, 11331012, 11471325 and 11461161005);the National High Technology Research and Development Program of China (863 Program) (Grant No. 2013AA122902);the National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences;National Basic Research Program of China (973 Program) (Grant No. 2015CB856002)
We study two instances of polynomial optimization problem over a single sphere. The first problem is to compute the best rank-1 tensor approximation. We show the equivalence between two recent semidefinite relaxations...
关键词：polynomial optimization over a single sphere semidefinite programming best rank-1 tensor ap-proximation Bose-Einstein condensates 
A trigonometric interval method for dynamic response analysis of uncertain nonlinear systems被引量：3
《Science China(Physics,Mechanics & Astronomy)》2015年第4期45-57,共13页LIU ZhuangZhuang WANG TianShu LI JunFeng 
This paper proposes a new non-intrusive trigonometric polynomial approximation interval method for the dynamic response analysis of nonlinear systems with uncertain-but-bounded parameters and/or initial conditions.Thi...
关键词：non-intrusive interval method dynamic response analysis uncertain nonlinear systems trigonometric polynomial ap-proximation interval arithmetic 
Image separation using wavelet-complex shearlet dictionary被引量：2
《Journal of Systems Engineering and Electronics》2014年第2期314-321,共8页Shuaiqi Liu Shaohai Hu Yang Xiao 
supported by the Aviation Science Foundation(201120M5007);the Natural Science Foundation of Beijing(4102050)
This paper presents a new method for image separation through employing a combined dictionary consisting of wavelets and complex shearlets. Because the combined dictionary sparsely represents points and curvilinear si...
关键词：geometric separation l1 minimization sparse approx-imation complex shearlet. 
Compressed sensing of superimposed chirps with adaptive dictionary refinement被引量：1
《Science China(Information Sciences)》2013年第12期167-181,共15页HU Lei ZHOU JianXiong SHI ZhiGuang FU Qiang 
supported by National Natural Science Foundation of China(Grant Nos.60972113,61101179)
The compressed sensing （CS） theory shows that accurate signal reconstruction depends on presetting an appropriate signal sparsifying dictionary. For CS of superimposed chirps, this dictionary is typically taken to b...
关键词：compressed sensing （CS） superimposed chirps dictionary refinement variational Bayesian ap-proximation expectation-maximization （EM） algorithm 
KY FAN TYPE BEST APPROXIMATION THEOREM FOR A CLASS OF FACTORIZABLE MULTIFUNCTIONS
《Analysis in Theory and Applications》2012年第2期101-110,共10页Hemant Kumar Nashine Zoran D. Mitrovic 
An existence result on Ky Fan type best approximation is proved. For this pur- pose, a class of factorizable multifunctions and the other one being a demicontinuous, rela- tive almost quasi-convex, onto function on an...
关键词：Almost affine almost quasi convex approximately weakly compact best ap-proximation demicontinuous map locally convex space relative almost quasiconvex Kakutani factorizable multifunction upper semicontinuous map 
Imation TDK Life on Record
《家庭影院技术》2012年第4期8-8,共1页
怡敏信Imation旗下知名品牌TDK Life on Record屡获日本影音家电权威大奖Visual Grand Prix（VGP）所颁发的耳机系列及扬声器系列产品大奖，推出了更多设计新颖、高质量的耳机和扬声器。
关键词：耳机 扬声器 设计 品牌 
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