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Recent advances in the data analysis method of functional magnetic resonance imaging and its applications in neuroimaging

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Progress in Natural Science:Materials International 2006年第8期16卷 785-795页

作者： TIAN Jie, YANG Lei and HU Jin (institute of Automation, chinese academy of sciences,{2., China Graduate School of chinese academy of sciences, beijing 100039, China) institute of Automation Chinese Academy of Sciences Beijing 100080 China. Graduate School of chinese academy of sciences Beijing 100039 China

Functional magnetic resonance imaging (fMRI) has opened a new area to explore the human brain. The fMRI can reveal the deep insights of spatial and temporal changes underlying a broad range of brain function, such as motor, vision, memory and emotion, all of which are helpful in the clinical investigation. In this paper, we introduce some recent-developed algorithms for fMRI signal detection such as model-driven method (general linear model, deconvolution model, non-linear model, etc. ) and data-driven method (principle component analysis, independent component analysis, self-organization mapping, clustered constrained non-negative matrix factorization, etc. ). We also propose several important applications of neuroimaging and point out their shortcomings and future perspectives.

关键词： fMR1 data analysis neuroimaging.

An SGS Model and Its Application

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Communications in Nonlinear Science and Numerical Simulation 1999年第2期4卷 87-90页

作者： Zhengtong XIE Jiachun LI (institute of Mechanics, chinese academy of sciences,{2., China) institute of Mechanics Chinese Academy of Sciences Beijing 100080 China

Based on the turbulent energy and structure function model, a subgridstress model named transitional structure function (TSF) is proposed, which exhibitsmore satisfactory performance than the previous one when applied in turbulent flow withinand above forest *** time and horizontal averaged statistics such as mean verticalprofiles of wind velocity, Reynolds stress, turbulent kinetic energy etc., and instantaneousfields as well are in general agreement with earlier observations, at least in a qualitativesense.

关键词： Large-Eddy simulation SGS model turbulent flow canopy

Conformational Studies of Arabinoglucuronomannology (AGM)

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生物物理学报 1996年第4期12卷 547-553页

作者： Imshik Lee Bai Chunli Wang Chen (institute of {2.,{2., beijing, 100080) 中科院化学所北京

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ＣｏｎｆｏｒｍａｔｉｏｎａｌＳｔｕｄｉｅｓｏｆＡｒａｂｉｎｏｇｌｕｃｕｒｏｎｏｍａｎｎｏｌｏｇｙ（ＡＧＭ）ＩｍｓｈｉｋＬｅｅ；ＢａｉＣｈｕｎｌｉ；ＷａｎｇＣｈｅｎ（ＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉｓｔｒｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃ...

关键词： Arabinoglucuronomannology(AGM) X - ray diffraction Conformation Relative humidity (RH)

THE L^2.NORM ERROR ESTIMATE OF NONCONFORMING FINITE ELEMENT METHOD FOR THE 2.D ORDER ELLIPTIC PROBLEM WITH THE LOWEST REGULARITY

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Journal of Computational Mathematics 2000年第3期18卷 277-282页

作者： Lie-heng Wang (LSEC, institute of Computational Mathematics and Scientific/Engineering Computing, academy of Mathematics and System {2., chinese academy of sciences, beijing, 100080, China) 中科院计算数学与科学工程计算所科学与工程计算国家重点实验室北京 100080

Presents the abstract L...-norm error estimate of nonconforming finite element method. Use of the Aubin Nitsche Lemma in estimating nonconforming finite element methods; Details on the equations.

关键词： L-2.norm error estimate nonconforming f.e.m. lowest regularity

Polymerization of Bisphenol A Epoxy Resin with Polyethylene glycol

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chinese Chemical Letters 1997年第8期8卷 725-728页

作者： Zhen Zhong YANG De Lu ZHAo Mao XU(Polymer Physics Laboratory, institute of chemistry, The{2., beijing 100080) Polymer Physics Laboratory Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

The catalyst boron trifluoride etherate was used to catalyze the reaction of epoxy resin with polyethylene glycol (PEG), and the effect of the concentration of the catalyst on the reaction is studied. It is shown that there exist two competitive reactions : I, self polymerization of epoxy resin via chain growth and II, copolymerization of epoxy resin with PEG via step growth. At high concentration of the catalyst reaction I dominates and reaction II is negligible. On the contrary, at low concentration of the catalyst, reaction II dominates and block copolymers are formed In the intermediate case, the two reactions are comparable with the result that a gel structure is obtained.

关键词： PEG Polymerization of Bisphenol A Epoxy Resin with Polyethylene glycol

Constant-Volume Heat Capacity of Mixed Supercritical Fluids and Molecular Interaction in the Systems

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chinese Chemical Letters 1999年第10期10卷 873-874页

作者： Lei shi Xi Feng ZHANG xiao Gang ZHANG Bu Xing HAN Guan Ying YANG Hai Ke YAN({2. of {2., chinese academy of sciences, beijing 100080) institute of chemistry Chinese Academy of Sciences

Constant-volume heat capacities of supercritical (SC) CO2. SC CO2.n-pentane, and SC CO2.n-heptane mixtures were determined at 308.15 K in the pressure range from 6 to 12.MPa. It was found that there is a maximum in ea... 详细信息

关键词： constant-volume heat capacity mixed supercritical fluids molecular interaction

A Facile Synthesis Route to 1,3-dichlorodisilazanes

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chinese Chemical Letters 2000年第9期11卷 765-766页

作者： Cai Hong XU Ning ZHOU Ze Min XIE Center for Molecular Science, institute of chemistry, the{2., beijing 100080 Center for Molecular Science Institute of Chemistry the Chinese Academy of Sciences

A new 1,3-dichlorodisilazane, 1,3-dichloro-1,3-dimethyl-1,3-divinyldisilazane (DMDV), was prepared from the reaction of hexamethyldisilazane (MMN) and methylvinyldichlorosilane. And use the same method, 1,3-dichloro-1... 详细信息

关键词： Silazanes synthesis dichlorodisilazanes

POLYMETHYLMETHACRYLATE FILMS IN THE STATE OF HIGH GLOBAL CHAIN ORIENTATION BUT NEARLY RANDOM SEGMENTAL ORIENTATION

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chinese Journal of Polymer Science 1999年第3期17卷 215-220页

作者： Rui Song jing Chen Jin-gui Gao Xin Lin Qing-rong Fan Polymer Physics Laboratory, institute of {2., chinese academy of sciences, beijing 100080, China 中科院化学所高分子物理及化学国家重点实验室北京 100080 中科院化学所高分子物理及化学国家重点实验室北京

PMMA films in the high global chain orientation and nearly random segmental orientation (GOLR) state were prepared by uni-axially drawing at temperatures 2. similar to 30 degrees C above its glass transition temperature, T-g, and their isotropic and anisotropic properties were studied. Experimental results show that this kind of amorphous state, the GOLR state, is nearly isotropic in optical birefringence, IR-dichroism and X-ray diffraction patterns, but is very anisotropic in behaviors of thermal expansion, solvent-swelling and stress-strain.

关键词： orientation uniaxial stretching polymethylmethacrylate optical birefringence WAXD infrared spectroscopy

The Multifractal Analysis of the Occupation Measure of a Lévy Process

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Wuhan University Journal of Natural sciences 2000年第3期5卷 253-256页

作者： Hu xiao\|yu institute of Applied Mathematics,{2., beijing 100080, China institute of Applied Mathematics Chinese Academy of Sciences Beijing 100080 China

We introduce the results on the multifractal structure of the occupation measures of a Brownian Motion, a stable process, a general subordinator and a stochastic process derived from random reordering of the Cantor se... 详细信息

关键词： occupation measure Levy process Brownian motion stable process subordinator