Lei Zhang

Publication List Details

Period

1991 - 2009

Number

555

Co-Authors

CONTENTS (2009)

Lei Zhang, Lei Zhang

is to certify that I have examined this copy of a master’s thesis by

An agent-based approach to travel demand modeling: An exploratory analysis (2009)

Lei Zhang, David Levinson

An agent-based travel demand model is developed in which travel demand emerges from the interactions of three types of agents in the transportation system: node, arc, and traveler. Simple local rules...

TRAVEL TIME VARIABILITY AFTER A SHOCK: THE CASE OF THE TWIN CITIES RAMP METER SHUT OFF (2009)

David Levinson, Lei Zhang

Ramp meters in the Twin Cities were turned off for 8 weeks in the Fall of 2000. This paper analyzes traffic data collected in this experiment on travel time variability with and without ramp metering...

Management of renal nutcracker syndrome by retroperitoneal laparoscopic nephrectomy with ex vivo autograft repair and autotransplantation: a case report and review of the literature (2009)

Xu, Danfeng, Liu, Yushan, Gao, Yi, Zhang, Lei, Wang, Junkai, Che, Jiangping, ...

Abstract Introduction Nutcracker syndrome (NCS) is caused by a compression of the left renal vein between the aorta and the superior mesenteric artery (SMA). It results in left renal venous...

Transient dynamics of molecular devices under step-like pulse bias (2009)

Wang, Bin, Xing, Yanxia, Zhang, Lei, Wang, Jian

We report first principles investigation of time-dependent current of molecular devices under a step-like pulse.Our results show that although the switch-on time of the molecular device is comparable...

A System to enable Relational Persistence and Semantic Web style access simultaneously for Objects (2009)

Jing Mei, Guotong Xie, Shengping Liu, Lei Zhang, Yue Pan

Object Oriented (OO) programming is dominant in the current software development. Starting from the design of OO models for applications, developers also expect to address issues on the data of...

UMRR: Towards an Enterprise-Wide Web of Models (2009)

Jing Mei, Guotong Xie, Lei Zhang, Shengping Liu, Bob Schloss, Yue Pan, ...

Metadata that describes the structure and semantics of data sources takes a significant role in enterprise information integration. Enterprise information integration always involves an increasing...

A NEW APPROACH FOR DESIGN SHARP FIR FILTERS USING FREQUENCY RESPONSE MASKING TECHNIQUE (2009)

Lei Zhang, Yong Lian, C. C. Ko

A new method to reduce the number of multipliers in the design of sharp FIR filter by frequency-response masking technique is presented. The success of the proposed method is based on a modified...

A local parabolic monotonicity formula on Riemannian manifolds (2009)

Teixeira, Eduardo. V., Zhang, Lei

In this article we establish a local parabolic almost monotonicity formula for two phase free boundary problems on Riemannian manifolds, which is an extension of a work of Edquist-Petrosyan.

Phase field model for the nucleation in solid state phase transformations: Theories, Algorithms and Applications (2009)

Zhang, Lei

Nucleation takes place when a material becomes thermodynamically meta-stable with respect to its transformation to a new state or new crystal structure. Very often, the nucleation process dictates...

DOI: 10.1007/s00526-003-0230-0 (2009)

Yanyan Li, Lei Zhang

Let (M,g) be an n−dimensional, smooth, compact Riemannian manifold without boundary. For n =2, the uniformization theorem of Poincaré gives the existence of Riemannian metrics which are pointwise...

Uncovering new signaling proteins and potential drug targets through the interactome analysis of Mycobacterium tuberculosis (2009)

Cui, Tao, Zhang, Lei, Wang, Xizhou, He, Zheng-Guo

Abstract Background Analysis of the pathogen interactome is a powerful approach for dissecting potential signal transduction and virulence pathways. It also offers opportunities for exploring new...

Profile of bubbling solutions to a Liouville system (2009)

Lin, Chang-shou, Zhang, Lei

In several fields of Physics, Chemistry and Ecology, some models are described by Liouville systems. In this article we first prove a uniqueness result for a Liouville system in $\mathbb R^2$. Then...

Six Degrees of Separation in Online Society (2009)

Zhang, Lei, Tu, Wanqing

Six degrees of separation is a well-known idea that any two people on this planet can be connected via an average number of six steps. Having succeeded in the real world, the theory even directly or...

2-(1H-Benzotriazol-1-yl)-1-(3-methylbenzoyl)ethyl benzoate (2009)

Wu-Lan Zeng, Lian-Cai Du, Lei Zhang, Fang-Fang Jian

In the title molecule, C23H19N3O3, the dihedral angles between the mean plane of the benzotriazole ring system and the benzene and phenyl rings are 9.67 (9) and 86.08 (10)°,...

Ethanol Prevents Oxidant-Induced Mitochondrial Permeability Transition Pore Opening in Cardiac Cells (2009)

Zhou, Kunyan, Zhang, Lei, Xi, Jinkun, Tian, Wei, Xu, Zhelong

Aims: The purpose of this study was to determine if ethanol prevents the mitochondrial permeability transition pore (mPTP) opening via glycogen synthase kinase 3β (GSK-3β). Methods: Cardiac H9c2...

Class IIC {alpha}-mannosidase AfAms1 is required for morphogenesis and cellular function in Aspergillus fumigatus (2009)

Li, Yanjie, Fang, Wenxia, Zhang, Lei, Ouyang, Haomiao, Zhou, Hui, Luo, Yuanming, ...

The mammalian ER/cytosolic α-mannosidase (Man2C1p), yeast vacuolar α-mannosidase (Ams1p) and the Aspergillus nidulans α-mannosidase are members of Class IIC subgroup, which is involved in...

Sequence and structural variation in a human genome uncovered by short-read, massively parallel ligation sequencing using two-base encoding (2009)

McKernan, Kevin Judd, Peckham, Heather E., Costa, Gina L., McLaughlin, Stephen F., Fu, Yutao, Tsung, Eric F., ...

We describe the genome sequencing of an anonymous individual of African origin using a novel ligation-based sequencing assay that enables a unique form of error correction that improves the raw...

Secure Collision-Free Frequency Hopping for OFDMA-Based Wireless Networks (2009)

Leonard Lightfoot, Lei Zhang, Jian Ren, Tongtong Li

This paper considers highly efficient antijamming system design using secure dynamic spectrum access control. First, we propose a collision-free frequency hopping (CFFH) system based on the OFDMA...

Secure Collision-Free Frequency Hopping for OFDMA-Based Wireless Networks (2009)

Leonard Lightfoot, Lei Zhang, Jian Ren, Tongtong Li

This paper considers highly efficient antijamming system design using secure dynamic spectrum access control. First, we propose a collision-free frequency hopping (CFFH) system based on the OFDMA...

Evolutionary Discriminant Feature Extraction with Application to Face Recognition (2009)

Qijun Zhao, David Zhang, Lei Zhang, Hongtao Lu

Evolutionary computation algorithms have recently been explored to extract features and applied to face recognition. However these methods have high space complexity and thus are not efficient or...

Evolutionary Discriminant Feature Extraction with Application to Face Recognition (2009)

Qijun Zhao, David Zhang, Lei Zhang, Hongtao Lu

Evolutionary computation algorithms have recently been explored to extract features and applied to face recognition. However these methods have high space complexity and thus are not efficient or...

Child Skeletal Fluorosis from Indoor Burning of Coal in Southwestern China (2009)

Xianghui Qin, Shouying Wang, Maojuan Yu, Lei Zhang, Xinhua Li, Zhen Zuo, ...

Objectives. We assess the prevalence and pathogenic stage of skeletal fluorosis among children and adolescents residing in a severe coal-burning endemic fluorosis area of southwest China. Methods. We...

Child Skeletal Fluorosis from Indoor Burning of Coal in Southwestern China (2009)

Xianghui Qin, Shouying Wang, Maojuan Yu, Lei Zhang, Xinhua Li, Zhen Zuo, ...

Objectives. We assess the prevalence and pathogenic stage of skeletal fluorosis among children and adolescents residing in a severe coal-burning endemic fluorosis area of southwest China. Methods. We...

Multiscale LMMSE-Based Image Denoising With Optimal Wavelet Selection (2008)

Lei Zhang, Paul Bao, Senior Member, Xiaolin Wu, Senior Member

Abstract—In this paper, a wavelet-based multiscale linear minimum mean square-error estimation (LMMSE) scheme for image denoising is proposed, and the determination of the optimal wavelet basis...

Similarity Space Projection for Web Image Search and Annotation (2008)

Ying Liu, Tao Qin, Tie-yan Liu, Lei Zhang, Wei-ying Ma

Web image search has been explored and developed in academic as well as commercial areas for over a decade. To measure the similarity between Web images and user queries, most of the existing Web...

Hidden Markov Models and Dynamically Multi-Linked HMMs (DML- (2008)

Lei Zhang, Dimitris Samaras, Nelly Alia-klein, Nora D. Volkow, Rita Z. Goldstein

Functional Magnetic Resonance Imaging (fMRI) has enabled scientists to look into the active brain. However, interactivity between functional brain regions, is still little studied. In this paper, we...

ANGEL: A HYBRID CONTENT-BASED FILTERING TOOL FOR PROTECTING TEENS SAFETY IN ONLINE SOCIAL NETWORK (2008)

Zhang, Lei

Since its emergence in 1997 [1] , online social networks have experienced dramatic evolution and played an increasingly important role in our life. With the enlarging population of members of various...

Numerical homogenization of the acoustic wave equations with a continuum of scales (2008)

Owhadi, Houman, Zhang, Lei

In this paper, we consider numerical homogenization of acoustic wave equations with heterogeneous coefficients, namely, when the bulk modulus and the density of the medium are only bounded. We show...

FPGA-based Accelerator Design for RankBoost in Web Search Engines (2008)

Ning-yi Xu, Xiong-fei Cai, Rui Gao, Lei Zhang, Feng-hsiung Hsu

Search relevance is a key measurement for the usefulness of search engines. Shift of search relevance among search engines can easily change a search company’s market cap by tens of billions of...

FEATURE SELECTION ON COMBINATIONS FOR EFFICIENT LEARNING FROM IMAGES (2008)

Rong Xiao, Lei Zhang, Hong-jiang Zhang

Due to the high computation complexity and intra-class variance in the area of image pattern recognition, feature extraction for image pattern recognition has been the focus of interest for quite...

Constructing Stack Tables with Magic %GluePlus (Another User-Defined Macro for Creating Stack Tables) (2008)

Lei Zhang, Celgene Corporation, George Li, Amgen Inc

As a composite table, a stack table is made up of a varying number of child tables that are placed one on top of another without any gaps. Unlike a regular table that has a fixed number of columns...

Monotonicity theorems for Laplace Beltrami operator on Riemannian manifolds (2008)

Teixeira, Eduardo V, Zhang, Lei

For free boundary problems on Euclidean spaces, the monotonicity formulas of Alt-Caffarelli-Friedman and Caffarelli-Jerison-Kenig are cornerstones for the regularity theory as well as the existence...

Determination of Sensitive Stage for Switching Migrant Oriental Armyworms Into Residents (2008)

Lei Zhang, Xing-Fu Jiang, Li-Zhi Luo

The sensitive stage for switching migrant oriental armyworm, Mythimna separata (Walker), into residents was determined under the stresses of starvation and cold (5°C) in a laboratory population....

Uncompensated Care Provision and the Economic Behavior of Hospitals: the Influence of the Regulatory Environment (2008)

Zhang, Lei

This dissertation project examines the effect of various state regulations such as Certificate-of-Need (CON) regulation, uncompensated care pools and community benefit requirement laws on hospital...

Uncompensated Care Provision and the Economic Behavior of Hospitals: the Influence of the Regulatory Environment (2008)

Zhang, Lei

This dissertation project examines the effect of various state regulations such as Certificate-of-Need (CON) regulation, uncompensated care pools and community benefit requirement laws on hospital...

Uncompensated care provision and the economic behavior of hospitals: the influence of the regulatory environment (2008)

Zhang, Lei

This dissertation project examines the effect of various state regulations such as Certificate-of-Need (CON) regulation, uncompensated care pools and community benefit requirement laws on hospital...

Prescribing curvatures on three dimensional Riemannian manifolds with boundaries (2008)

Zhang, Lei

Let $(M,g)$ be a complete three dimensional Riemannian manifold with boundary $\partial M$. Given smooth functions $K(x)>0$ and $c(x)$ defined on $M$ and $\partial M$, respectively, it is natural to...

A priori estimate for a family of semi-linear elliptic equations with critical nonlinearity (2008)

Zhang, Lei

We consider positive solutions of $\Delta u-\mu u+Ku^{\frac{n+2}{n-2}}=0$ on $B_1$ ($n\ge 5$) where $\mu $ and $K>0$ are smooth functions on $B_1$. If $K$ is very sub-harmonic at each critical point...

Asymptotic Behavior of Blowup Solutions for Elliptic Equations with Exponential Nonlinearity and Singular Data (2008)

Zhang, Lei

We consider a sequence of blowup solutions of a two dimensional, second order elliptic equation with exponential nonlinearity and singular data. This equation has a rich background in physics and...

The profile of bubbling solutions of a class of fourth order geometric equations on 4-manifolds (2008)

Weinstein, Gilbert, Zhang, Lei

We study a class of fourth order geometric equations defined on a 4-dimensional compact Riemannian manifold which includes the Q-curvature equation. We obtain sharp estimates on the difference near...

Body mass index and health related quality of life in elementary school children: a pilot study (2008)

Zhang, Lei, Fos, Peter J, Johnson, William D, Kamali, Vafa, Cox, Reagan G, Zuniga, Miguel A, ...

Abstract Background We investigated the relationship between Body Mass Index (BMI) and health-related quality of life (HRQOL) indicated by baseline health status in elementary school children....

Polymer single-nanowire optical sensors (2008)

Gu, Fuxing, Zhang, Lei, Yin, Xuefeng, Tong, Limin

We report highly versatile nanosensors using polymer single nanowires. On the basis of the optical response of waveguiding polymer single nanowires when exposed to specimens, functionalized polymer...

Path integral study of the role of correlation in exchange coupling of spins in double quantum dots and optical lattices (2008)

Zhang, Lei, Gilbert, Matthew, Pedersen, Jesper, Shumway, John

We explore exchange coupling of a pair of spins in a double dot and in an optical lattice. Our algorithm uses the frequency of exchanges in a bosonic path integral, evaluated with Monte Carlo. This...

TABLE OF CONTENTS (2008)

Olph Hall, Maged Dessouky, Lei Zhang, Ajay Singh, Vishal Pate, Maged Dessouky, ...

This paper has been mechanically scanned. Some errors may have been inadvertently introduced.

– Object Recognition, H.2.8 [Database Management]: Database Application – Image databases. General Terms (2008)

Xirong Li, Xin-jing Wang, Changhu Wang, Lei Zhang

In this technical demonstration, we showcase the SBIA system – a search-based image annotation system. At the heart of the system lies a very large-scale image search engine which indexed three...

AUTOMATEDMUSICVIDEOGENERATIONUSINGWEBIMAGERESOURCE (2008)

Rui Cai, Lei Zhang, Feng Jing, Wei Lai

In this paper, we proposed a novel prototype of automated music video generation using web image resource. In this prototype, the salient words/phrases of a song's lyrics are first automatically...

IGroup: A Web Image Search Engine with Semantic Clustering of Search Results (2008)

Feng Jing, Changhu Wang, Yuhuan Yao, Kefeng Deng, Lei Zhang, Wei-ying Ma

In this demo, we present IGroup, a Web image search engine that organizes the search results into semantic clusters. Different from all existing Web image search results clustering algorithms that...

Low Loss Metamaterials Based on Classical Electromagnetically Induced Transparency (2008)

Tassin, Ph., Zhang, Lei, Koschny, Th., Economou, E. N., Soukoulis, C. M.

We demonstrate theoretically that electromagnetically induced transparency can be achieved in metamaterials, in which electromagnetic radiation is interacting resonantly with mesoscopic oscillators...

Surface waves in photonic crystal slabs (2008)

Wang, Bingnan, Dai, Weitao, Fang, Anan, Zhang, Lei, Tuttle, Gary, Koschny, Thomas, ...

Photonic crystals with a finite size can support surface modes when appropriately terminated. We calculate the dispersion curves of surface modes for different terminations using the plane wave...

Equilibrium conformation of polymer chains with noncircular cross section (2008)

Zhao, Shumin, Zhang, Shengli, Yao, Zhenwei, Zhang, Lei

In this paper we derive the general equilibrium equations of a polymer chain with a noncircular cross section by the variation of the free energy functional. From the equilibrium equation of the...

Human Gait Recognition With Matrix Representation (2008)

Dong Xu, Shuicheng Yan, Dacheng Tao, Lei Zhang, Xuelong Li, ...

the IEEE does not in any way imply IEEE endorsement of any of Birkbeck’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this...

SOR: A Practical System for Ontology Storage, Reasoning and Search (2008)

Jing Lu, Li Ma, Lei Zhang, Jean-sébastien Brunner, Chen Wang, Yue Pan, ...

Ontology, an explicit specification of shared conceptualization, has been increasingly used to define formal data semantics and improve data reusability and interoperability in enterprise information...

Semplore: An IR Approach to Scalable Hybrid Query of Semantic Web Data (2008)

Lei Zhang, Qiaoling Liu, Jie Zhang, Haofen Wang, Yue Pan, Yong Yu

Abstract. As an extension to the current Web, Semantic Web will not only contain structured data with machine understandable semantics but also textual information. While structured queries can be...

Defect Tolerance in Homogeneous Manycore Processors Using Core-Level Redundancy with Unified Topology (2008)

Lei Zhang, Yinhe Han, Qiang Xu, Xiaowei Li

Homogeneous manycore processors are emerging for terascale computation. Effective defect tolerance techniques are essential to improve the yield of such complex integrated circuits. In this paper, we...

• Optimal ranking function: Relevance + Quality (2008)

Lei Zhang, Key Issues

• Feature extraction – 1990-1998 ̵ Finding low level features to represent high level semantic concepts • Relevance feedback – 1995-2001 ̵ Leveraging users feedback to bridge the gap

Integrating Web Services into Ontology-based Web Portal (2008)

Jian Zhou, Yong Yu, Lei Zhang, Chenxi Lin, Yin Yang

Abstract. With the explosive emerged Web services, the Web becomes a world of information and applications. So portals whose goal is presenting a structured view onto the Web should provide users...

Internet Electronic Journal of Molecular Design (2008)

Ovidiu Ivanciuc, Douglas J. Klein, Bing Liu, Aijun Lu, Lei Zhang, Haibo Liu, ...

Based on the topological scaffold classification approach to cluster a structural database, we propose a new criterion to evaluate the diversity of a chemical structural database. This criterion is...

IGroup: A Web Image Search Engine with Semantic Clustering of Search Results (2008)

Feng Jing, Changhu Wang, Yuhuan Yao, Kefeng Deng, Lei Zhang, Wei-ying Ma

In this demo, we present IGroup, a Web image search engine that organizes the search results into semantic clusters. Different from all existing Web image search results clustering algorithms that...

Connectivity Geometry Parameterized Mesh (2008)

Lei Zhang, Ligang Liu, Zhongping Ji, Guojin Wang

( c) ( d) Fig. 1. Manifold parameterization: mapping the connectivity of a mesh (a) onto another mesh (b) directly to obtain a new mesh (c). The new mesh (c) has almost the same geometry with mesh...

Automated Retinal Vessel Segmentation Using Gabor Filters and Scale Multiplication (2008)

Qin Li, Jane You, Lei Zhang

Abstract- The accurate identification of the appearance of blood vessels in ocular fundus plays an important role in medical diagnosis of many diseases. The automated segmentation is helpful for eye...

x y (2008)

Bhavani Shankar Yanamadala, Lei Zhang, Xiaoli Zhang, I Xiy I

Self-calibration based on robust point matching

A Novel Gabor-LDA Based Face Recognition Method (2008)

Yanwei Pang, Lei Zhang, Mingjing Li, Zhengkai Liu, Weiying Ma

Abstract. In this paper, a novel face recognition method based on Gabor-wavelet and linear discriminant analysis (LDA) is proposed. Given training face images, discriminant vectors are computed using...

An Approach to RDF(S) Query, Manipulation and Inference on Databases (2008)

Jing Lu, Yong Yu, Kewei Tu, Chenxi Lin, Lei Zhang

Abstract. In order to lay a solid foundation for the emerging semantic web, effective and efficient management of large RDF(S) data is in high demand. In this paper we propose an approach to the...

Using OCL in Executable UML (2008)

Ke Jiang, Lei Zhang, Shigeru Miyake

Abstract. Executable UML allows precisely describing the software system at a higher level of abstraction. The executable models can be translated to a less abstract programming language completely...

Modelling the Peripheral Auditory System of Lizards (2008)

Lei Zhang, John Hallam, Jakob Christensen-dalsgaard

Abstract. Lizards, such as Mabuya macularia or Gecko gecko, have a relatively simple peripheral auditory system structured as a pressure difference receiver with a strong broadband directional...

LSM: Language Sense Model for Information Retrieval (2008)

Shenghua Bao, Lei Zhang, Erdong Chen, Min Long, Rui Li, Yong Yu

Abstract. A lot of work has been done on drawing word senses into retrieval to deal with the word sense ambiguity problem, but most of them achieved negative results. In this paper, we first...

Neighborhood Preserving Projections (NPP): A Novel Linear Dimension Reduction Method (2008)

Yanwei Pang, Lei Zhang, Zhengkai Liu

Abstract. Dimension reduction is a crucial step for pattern recognition and information retrieval tasks to overcome the curse of dimensionality. In this paper a novel unsupervised linear dimension...

Hemispherical Harmonic Surface Description and Applications to Medical Image Analysis (2008)

Heng Huang, Lei Zhang, Dimitris Samaras, Li Shen, Rong Zhang, Fillia Makedon, ...

The use of surface harmonics for rigid and nonrigid shape description is well known. In this paper we define a set of complete hemispherical harmonic basis functions on a hemisphere domain and...

Aberrant epigenetic changes and gene expression in cloned cattle dying around birth (2008)

Lin, Li, Li, Qiang, Zhang, Lei, Zhao, Dingsheng, Dai, Yunping, Li, Ning

Abstract Background Aberrant reprogramming of donor somatic cell nuclei may result in many severe problems in animal cloning. To assess the extent of abnormal epigenetic modifications and gene...

AUTOMATED RED-EYE DETECTION AND CORRECTION IN DIGITAL PHOTOGRAPHS (2008)

Lei Zhang, Yanfeng Sun, Mingjing Li, Hongjiang Zhang

Caused by light reflected off the subject's retina, red-eye is a troublesome problem in consumer photography. Although most of the cameras have the red-eye reduction mode, the result reality is...

Parallel Image Matrix Compression for Face Recognition (2008)

Dong Xu, Shuicheng Yan, Lei Zhang, Mingjing Li, Weiying Ma, Zhengkai Liu, ...

The canonical face recognition algorithm Eigenface and Fisherface are both based on one dimensional vector representation. However, with the high feature dimensions and the small training data, face...

Modeling Neuronal Interactivity using Dynamic Bayesian Networks (2008)

Lei Zhang, Dimitris Samaras, Nelly Alia-klein, Nora Volkow, Rita Goldstein

Functional Magnetic Resonance Imaging (fMRI) has enabled scientists to look into the active brain. However, interactivity between functional brain regions, is still little studied. In this paper, we...

WWW 2007 / Track: Semantic Web Session: Applications Explorations in the Use of Semantic Web Technologies for Product Information Management (2008)

Jean-sébastien Brunner, Li Ma, Chen Wang, Lei Zhang, Daniel C. Wolfson, Yue Pan, ...

Master data refers to core business entities a company uses repeatedly across many business processes and systems (such as lists or hierarchies of customers, suppliers, accounts, products, or...

Face Reconstruction Across Different Poses and Arbitrary Illumination Conditions (2008)

Sen Wang, Lei Zhang, Dimitris Samaras

Abstract. In this paper, we present a novel method for face reconstruction from multi-posed face images taken under arbitrary unknown illumination conditions. Previous work shows that any face image...

ABSTRACT Image-Driven Re-targeting and Relighting of Facial Expressions (2008)

Lei Zhang, Yang Wang, Sen Wang, Dimitris Samaras

Synthesis and re-targeting of facial expressions is central to facial animation and often involves significant manual work in order to achieve realistic expressions, due to the difficulty of...

A Positive Approach for Travel Behavior and Demand Analysis (2008)

Lei Zhang, Lei Zhang

This is to certify that I have examined this copy of a Ph.D. dissertation by

Face Reconstruction Across Different Poses and Arbitrary Illumination Conditions (2008)

Sen Wang, Lei Zhang, Dimitris Samaras

Abstract. In this paper, we present a novel method for face reconstruction from multi-posed face images taken under arbitrary unknown illumination conditions. Previous work shows that any face image...

Image Annotation Using Search and Mining Technologies 1 (2008)

Xin-jing Wang, Lei Zhang, Feng Jing, Wei-ying Ma

In this paper, we present a novel solution to the image annotation problem which annotates images using search and data mining technologies. An accurate keyword is required to initialize this...

Performance of (2008)

Xin-jing Wang, Wei-ying Ma, Lei Zhang, Xing Li

Image clustering is an important research topic which contributes to a wide range of applications. Traditional image clustering approaches are based on image content features only, while content...

Searching One Billion Web Images by Content: Challenges and Opportunities (2008)

Zhiwei Li, Xing Xie, Lei Zhang, Wei-ying Ma

Abstract. Although content-based image retrieval has been studied for decades, most commercial image search engines are still text-based. However, there is a growing demand for techniques to support...

Hyperaccretion after the Blandford-Znajek Process: a New Model for GRBs with X-Ray Flares Observed in Early Afterglows (2008)

Lei, Wei-Hua, Wang, Ding-Xiong, Zou, Yuan-Chuan, Zhang, Lei

We propose a three-stage model with Blandford-Znajek (BZ) and hyperaccretion process to interpret the recent observations of early afterglows of Gamma-Ray Bursts (GRBs). In the first stage, the...

Complex dynamics of a Holling-type IV predator-prey model (2008)

Zhang, Lei, Wang, Weiming, Xue, Yakui, Jin, Zhen

In this paper, we focus on a spatial Holling-type IV predator-prey model which contains some important factors, such as diffusion, noise (random fluctuations) and external periodic forcing. By a...

Pattern formation of a predator-prey system with Ivlev-type functional response (2008)

Wang, Weiming, Zhang, Lei, Wang, Hailing, Li, Zhenqing

In this paper, we investigate the emergence of a predator-prey system with Ivlev-type functional response and reaction-diffusion. We study how diffusion affects the stability of predator-prey...

Spatiotemporal pattern formation of Beddington-DeAngelis-type predator-prey model (2008)

Wang, Weiming, Zhang, Lei, Xue, Yakui, Jin, Zhen

In this paper, we investigate the emergence of a predator-prey model with Beddington-DeAngelis-type functional response and reaction-diffusion. We derive the conditions for Hopf and Turing...

Invasive Alien Species (2008)

Wang, Zhongyu, Zhang, Lei, Ivanov, Boris

This report starts from the theory of invasion biology. Several theories would be explained; they are propagule pressure, process of invasion, stages and several management theories which include:...

Di-μ3-iodido-diiodidobis(μ2-4′-phenyl-2,2′:6′,2′′-terpyridine)tetracopper(I) (2008)

Han-Yuan Xie, Lei Zhang, Wen-Juan Shi

The title complex, [Cu4I4(C21H15N3)2], lies on an inversion centre located at the centroid of a four-membered ring formed by one of the crystallographically independent CuI ions and a triply bridging...

(Dicyanamido)[2-(2-pyridylmethyliminomethyl)phenolato]copper(II) monohydrate (2008)

Qi-Hua Zhao, Lei Zhang, Lin Du, Rui-Bin Fang

The title compound, [Cu(C13H11N2O)(C2N3)]·H2O, is a mononuclear copper(II) complex in which the CuII ion has a slightly distorted square-planar geometry and is coordinated by two N atoms and one...

catena-Poly[[aquacopper(II)]-μ-[(S)-N-(2-hydroxybenzyl)-l-aspartato]] (2008)

Lei Zhang, Bai-Wang Sun

The title compound, [Cu(C11H11NO5)(H2O)]n, was obtained by the reaction of Cu(NO3)2 and the homochiral organic ligand (S)-N-(2-hydroxybenzyl)-l-aspartic acid (S-H3sasp). The CuII ion has a distorted...

Synthesis of RP 48497, an Impurity of Eszopiclone (2008)

Yu Sharov, Lei Zhang, Gui-Jie Du, Jian Ren, Mao-Sheng Cheng

Abstract: RP 48497 is a photodegradation product of eszopiclone, a non-benzodiazepine sedative-hypnotic used in the treatment of insomnia. We report herein the first synthesis of RP 48497 via...

Electrochemical synthesis of polyaniline nano-networks on p-aminobenzene sulfonic acid functionalized glassy carbon electrode Its use for the simultaneous determination of ascorbic acid and uric acid (2008)

Zhang, Lei, Zhang, Chunhua, Lian, Jiying

A composite film of polyaniline (PAN) nano-networks/p-aminobenzene sulfonic acid (ABSA) modified glassy carbon electrode (GCE) has been fabricated via an electrochemical oxidation procedure and...

Genome-wide association scans identified CTNNBL1 as a novel gene for obesity (2008)

Liu, Yong-Jun, Liu, Xiao-Gang, Wang, Liang, Dina, Christian, Yan, Han, Liu, Jian-Feng, ...

Obesity is a major public health problem with strong genetic determination; however, the genetic factors underlying obesity are largely unknown. In this study, we performed a genome-wide association...

Homogenization of Parabolic Equations with a Continuum of Space and Time Scales (2007)

Owhadi, Houman, Zhang, Lei

This paper addresses the issue of the homogenization of linear divergence form parabolic operators in situations where no ergodicity and no scale separation in time or space are available. Namely, we...

Instructor/Teaching Assistant (2007)

Lei Zhang

provide the ability to evaluate and compare programming languages from both the user's and implementor's view. The emphasis of the course will be on programming languages issues such as...

Neural Basis of the Non-Attentional Processing of Briefly Presented Words (2007)

Dan-ling Peng, Duo Xu, Zhen Jin, Qian Luo, Guo-sheng Ding, Conrad Perry, ...

Abstract: The neural basis of the automatic activation of words was investigated in an fMRI study. In the study, words were presented briefly (51 or 151 msec) followed by a mask. To prevent...

An Efficient Memorization Scheme for Relevance Feedback in Image Retrieval (2007)

Lei Zhang, Fang Qian, Mingjing Li, Hong-Jiang Zhang

We propose a novel approach to memorizing content relevance information accumulated in relevance feedback sessions (historical relevance feedback) in image retrieval. It is based on the idea that by...

Microimprinting and ferroelectric properties of poly(vinylidene fluoride-trifluoroethylene) copolymer films (2007)

Zhang, Lei, Ducharme, Stephen, Li, Jiangyu

Poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films have been patterned by microimprinting with excellent quality of pattern transferring. Ferroelectricity of the imprinted...

All-cause mortality and risk factors in a cohort of retired military male veterans, Xi'an, China: an 18-year follow up study (2007)

Sai, Xiao Y, He, Yao, Men, Ke, Wang, Bo, Huang, Jiu Y, Shi, Qiu L, ...

Abstract Background Risk factors of all-cause mortality have not been reported in Chinese retired military veterans. The objective of the study was to examine the risk factors and proportional...

Amplified Fragment Length Polymorphism Analysis of Mythimna separata (Lepidoptera: Noctuidae) Geographic and Melanic Laboratory Populations in China (2007)

Xing-Fu Jiang, Li-Zhi Luo, Lei Zhang

Genetic diversity within and among three wild-type natural populations and one melanic laboratory population of Mythimna separata (Walker) (Lepidoptera: Noctuidae) were evaluated using amplified...

Economic Development and Land-Use Conversion in the Main Course Area of the Yangtse River Basin (2007)

Lei Zhang;

En tant qu’éléments clés du milieu naturel, les ressources foncières et leur exploitation jouent un rôle très important pour promouvoir l’industrialisation régionale. Celle-ci a abouti non...

Metric based upscaling for partial differential equations with a continuum of scales (2007)

Zhang, Lei

Numerical upscaling of problems with multiple scale structures have attracted increasing attention in recent years. In particular, problems with non-separable scales pose a great challenge to...

Evaluation of a nutrition education intervention for women residents of Washington, DC, public housing communities (2007)

Shankar, Sharada, Klassen, Ann C., Garrett-Mayer, Elizabeth, Houts, Peter S., Wang, Ting, McCarthy, Marlene, ...

We designed, implemented and evaluated an educational intervention to increase fruit and vegetable consumption among urban African-American women. Women aged 20–50 years (n = 212) from 11 public...

Metric based upscaling for partial differential equations with a continuum of scales (2007)

Zhang, Lei

Numerical upscaling of problems with multiple scale structures have attracted increasing attention in recent years. In particular, problems with non-separable scales pose a great challenge to...

Monitoring bands and monitoring rules: how currency intervention can change market composition (2007)

Corrado, Luisa, Miller, Marcus, Zhang, Lei

In this paper we show how trading rules can generate excess volatility in the exchange rate through repeated entry and exit of currency bears and bulls. This is something of a caricature: but it...

Electronic structures and conductance of carbon nanotubes (2007)

Zhang, Lei

Electronic structures of finite length single-walled carbon nanotubes (SWNT) with up to more than 500 carbon atoms are calculated using density functional theory (DFT). The HOMO-LUMO gap results from...

Bulls, Bears and Excess Volatility: can currency intervention help? (2007)

Corrado, Luisa, Miller, Marcus, Zhang, Lei

Asset mis-pricing may reflect investor psychology, with excess volatility arising from switches of sentiment. For a floating exchange rate where fundamentals follow a random walk, we show that excess...

Sonoporation is an efficient tool for intracellular fluorescent dextran delivery and one-step double-crossover mutant construction in Fusobacterium nucleatum. (2007)

Han, Yiping W., Ikegami, Akihiko, Chung, Peter, Zhang, Lei, Deng, Cheri X.

Studies of microorganisms are often hindered by a lack of effective genetic tools. One such example is Fusobacterium nucleatum, a gram-negative anaerobe associated with various human infections,...

Improved related-key impossible differential attacks on reduced round AES-192 (2007)

Wentao Zhang, Wenling Wu, Lei Zhang

Abstract. In this paper we examine the strength of AES-256 against the related-key impossible differential attack, following the work in [1] and [2]. Firstly, we present a carefully chosen relation...

Generalized File System Dependencies (2007)

Christopher Frost, Mike Mammarella, Eddie Kohler, Andrew Reyes, Shant Hovsepian, Andrew Matsuoka, ...

Reliable storage systems depend in part on “write-before ” relationships where some changes to stable storage are delayed until other changes commit. A journaled file system, for example, must...

Generalized File System Dependencies (2007)

Christopher Frost, Mike Mammarella, Eddi Kohler, Shant Hovsepian, Andrew Matsuoka, ...

Reliable storage systems depend in part on “write-before” relationships where some changes to stable storage are delayed until other changes commit. A journaled file system, for example, must...

Development of the semi-arid climate and environment research observatory over Loess Plateau (2007)

Jianping Huang, Wu Zhang, Jinqing Zuo, Congbin Fu, Jifan Chou, Jiuyi Yuan, ...

Arid and semi-arid areas comprise about 30 % of earth surface. Changes in climate and climate variability will likely have a significant impact on these regions. Loess Plateau over Northwest China is...

Improved related-key impossible differential attacks on reduced round AES-192 (2007)

Wentao Zhang, Wenling Wu, Lei Zhang, Dengguo Feng

Abstract. In this paper, we present several new related-key impossible differential attacks on 7- and 8-round AES-192, following the work of Eli Biham and Orr Dunkelman et al. [1]. We choose another...

IGroup: Presenting Web Image Search Results (2007)

Shuo Wang, Feng Jing, Jibo He, Qixing Du, Lei Zhang

Current web image search engines still rely on user typing textual description: query word(s) for visual targets. As the queries are often short, general or even ambiguous, the images in resulting...

The comprehensive assessing of the economic development conditions of cities in Shandong province ∗ (2007)

Guoliang Cai, Lei Zhang

Abstract. In this article, we analyze the current conditions of cities in Shandong province by using multivariate statistical method and find out their comparative advantage and weakness. Then, we...

Generalized File System Dependencies (2007)

Christopher Frost, Mike Mammarella, Eddie Kohler, Andrew Reyes, Shant Hovsepian, Andrew Matsuoka, ...

Reliable storage systems depend in part on “write-before ” relationships where some changes to stable storage are delayed until other changes commit. A journaled file system, for example, must...

Exact solutions for vibration of stepped circular cylindrical shells (2007)

Zhang, Lei, Xiang, Y.

Based on the Flügge thin shell theory, this paper presents exact solutions for the vibration of circular cylindrical shells with step-wise thickness variations in the axial direction. The shell is...

Empirical study on benchmarking software development tasks (2007)

Ruan, Li Juan, Wang, Yongji, Wang, Qing, Li, Mingshu, Yang, Yun, Xie, Lizi, ...

Benchmarking is one of the most important methods to learn the best practices for software process improvement. However, in current software process context, benchmarking is mainly for projects...

Exact solutions for vibration of stepped circular cylindrical shells (2007)

Zhang, Lei, Xiang, Y.

Based on the Flügge thin shell theory, this paper presents exact solutions for the vibration of circular cylindrical shells with step-wise thickness variations in the axial direction. The shell is...

Empirical study on benchmarking software development tasks (2007)

Ruan, Li Juan, Wang, Yongji, Wang, Qing, Li, Mingshu, Yang, Yun, Xie, Lizi, ...

Benchmarking is one of the most important methods to learn the best practices for software process improvement. However, in current software process context, benchmarking is mainly for projects...

Functional magnetic resonance imaging (fMRI) study of visual perception (2007)

Zhang, Lei

The first measurements of fMRI signals from human cortex were reported in 1992 (Kwong, Belliveau et al. 1992; Ogawa, Tank et al. 1992). From then on, much progress has been made in both, measurements...

1 Economics of Road Network Ownership (2007)

Lei Zhang, David Levinson

This paper explores the economic impact of alternative ownership structures on transportation system performance, social welfare, and regulatory needs. Road pricing, investment, and ownership...

An Agent-based Route Choice Model (2007)

Shanjiang Zhu, David Levinson, Lei Zhang

Travel demand emerges from individual decisions. These decisions, depending on individual objectives, preferences, experiences and spatial knowledge about travel, are both heterogeneous and...

Compactness of solutions to the Yamabe problem. III (2006)

Li, YanYan, Zhang, Lei

For a sequence of blow up solutions of the Yamabe equation on non-locally confonformally flat compact Riemannian manifolds of dimension 10 or 11, we establish sharp estimates on its asymptotic...

Experimental demonstration of negative index of refraction (2006)

Zhou, Jiangfeng, Koschny, Thomas, Zhang, Lei, Tuttle, Gary, Soukoulis, Costas M.

We introduce an improved and simplified structure made of periodic arrays of pairs of H-shaped metallic wires that offer a potentially simpler approach in building negative-index materials. Using...

Angiotensin Receptor Blockade and Apoptosis in Chronic Allograft Nephropathy (2006)

Zhang, Lei

To explore whether blockade of AT1 and AT2 receptors had an effect on apoptosis in the graft and the development and progression of chronic allograft nephropathy (CAN), we orthotopically transplanted...

Numerical Homogenization of the Acoustic Wave Equations with a Continuum of Scales (2006)

Owhadi, Houman, Zhang, Lei

In this paper, we consider numerical homogenization of acoustic wave equations with heterogeneous coefficients, namely, when the bulk modulus and the density of the medium are only bounded. We show...

Integrated location management and location-aided routing system for mobile ad-hoc networks (2006)

Zhang, Lei, Muppala, Jogesh K., Chanson, Samuel T.

We propose an integrated location management and location-aided routing system which organizes the Mobile Ad-hoc Network (MANET) into a two-level hierarchy with the help of Voronoi diagrams. The...

Ultraviolet Absorption Spectra of Substituted Phenols: A Computational Study† (2006)

Lei Zhang, Gilles H. Peslherbe, Heidi M. Muchall

Vertical excitation energies for electronic transitions from the ground state to the first two excited states of phenol, mono- and disubstituted methoxyphenols and methyl-substituted phenols have...

New Iron Polyoxometalate - Based Catalysts for Decontamination of HD and G Agents (2006)

Okun, Nelya, Tarr, Chris, Zhang, Lei, Hill, Craig

Recently developed iron containing polyoxometalates (POMs) are the most reactive catalysts yet for the rapid aerobic oxidation/ decontamination of mustard (HD) and the optimal simulant for HD,...

Human gait recognition with matrix representation (2006)

Xu, Dong, Yan, Shuicheng, Tao, Dacheng, Zhang, Lei, Li, Xuelong, Zhang, Hong-Jiang

Human gait is an important biometric feature. It can be perceived from a great distance and has recently attracted greater attention in video-surveillance-related applications, such as closed-circuit...

Human gait recognition with matrix representation (2006)

Xu, Dong, Yan, Shuicheng, Tao, Dacheng, Zhang, Lei, Li, Xuelong, Zhang, Hong-Jiang

Human gait is an important biometric feature. It can be perceived from a great distance and has recently attracted greater attention in video-surveillance-related applications, such as closed-circuit...

Human gait recognition with matrix representation (2006)

Xu, Dong, Yan, Shuicheng, Tao, Dacheng, Zhang, Lei, Li, Xuelong, Zhang, Hong-Jiang

Human gait is an important biometric feature. It can be perceived from a great distance and has recently attracted greater attention in video-surveillance-related applications, such as closed-circuit...

Human gait recognition with matrix representation (2006)

Xu, Dong, Yan, Shuicheng, Tao, Dacheng, Zhang, Lei, Li, Xuelong, Zhang, Hong-Jiang

Human gait is an important biometric feature. It can be perceived from a great distance and has recently attracted greater attention in video-surveillance-related applications, such as closed-circuit...

Human gait recognition with matrix representation (2006)

Dong Xu, Shuicheng Yan, Dacheng Tao, Lei Zhang, Xuelong Li, Hong-jiang Zhang

Abstract—Human gait is an important biometric feature. It can be perceived from a great distance and has recently attracted greater attention in video-surveillance-related applications, such as...

Image Annotation by Large-Scale Content-based Image Retrieval (2006)

Xirong Li, Le Chen, Lei Zhang, Fuzong Lin, Wei-ying Ma

Image annotation has been an active research topic in recent years due to its potentially large impact on both image understanding and Web image search. In this paper, we target at solving the...

Image Annotation by Large-Scale Content-based Image Retrieval (2006)

Xirong Li, Le Chen, Lei Zhang, Fuzong Lin, Wei-ying Ma

Image annotation has been an active research topic in recent years due to its potentially large impact on both image understanding and Web image search. In this paper, we target at solving the...

Implementing Remote Display on Commodity Operating Systems (2006)

Lei Zhang, Lei Zhang

I would like to thank my advisor Jason Nieh. His foresight in research and wealth of expertise in computer systems guided me throughout this work. This thesis would not have been possible without his...

AnnoSearch: Image Auto-Annotation by Search (2006)

Xin-jing Wang, Lei Zhang, Feng Jing, Wei-ying Ma

Although it has been studied for several years by computer vision and machine learning communities, image annotation is still far from practical. In this paper, we present AnnoSearch, a novel way to...

Enjoyphoto - a vertical image search engine for enjoying high-quality photos (2006)

Lei Zhang, Le Chen, Feng Jing, Kefeng Deng, Wei-ying Ma

In this paper, we propose building a vertical image search engine called EnjoyPhoto that leverages rich metadata from various photo forum web sites to meet users ’ requirements for enjoying...

Igroup: Web image search results clustering (2006)

Feng Jing, Changhu Wang, Yuhuan Yao, Kefeng Deng, Lei Zhang, Wei-ying Ma

In this paper, we propose, IGroup, an efficient and effective algorithm that organizes Web image search results into clusters. IGroup is different from all existing Web image search results...

Face recognition from a single training image under arbitrary unknown lighting using spherical harmonics (2006)

Lei Zhang, Student Member, Dimitris Samaras

Abstract—In this paper, we propose two novel methods for face recognition under arbitrary unknown lighting by using spherical harmonics illumination representation, which require only one training...

Image Annotation by Large-Scale Content-based Image Retrieval (2006)

Xirong Li, Le Chen, Lei Zhang, Fuzong Lin, Wei-ying Ma

Image annotation has been an active research topic in recent years due to its potentially large impact on both image understanding and Web image search. In this paper, we target at solving the...

Scalable Search-Based Image Annotation of Personal Images (2006)

Changhu Wang, Feng Jing, Lei Zhang, Hong-jiang Zhang

With the prevalence of digital cameras, more and more people have considerable digital images on their personal devices. As a result, there are increasing needs to effectively search these personal...

Multi-period pricing for perishable products : uncertainty and competition / (2006)

Zhang, Lei (Lei Kevin)

The pricing problem in a multi-period setting is a challenging problem and has attracted much attention in recent years. In this thesis, we consider a monopoly and an oligopoly pricing problem. In...

Local adaptive differential quadrature for free vibration analysis of cylindrical shells with various boundary conditions (2006)

Zhang, Lei, Xiang, Y., Wei, G. W.

This paper presents the formulation and numerical analysis of circular cylindrical shells by the local adaptive differential quadrature method (LaDQM), which employs both localized interpolating...

Functional redundancy of transcription factor-binding sites in the killer cell Ig-like receptor (KIR) gene promoter (2006)

Presnell, Steven R., Zhang, Lei, Ramilo, Cecilia A., Chan, Huei-Wei, Lutz, Charles T.

Variegated expression of inhibitory killer cell Ig-like receptors (KIRs) for MHC class I molecules helps NK cells distinguish normal from aberrant self and avoid autoreactivity. Prior studies of KIR...

Evaluation of a nutrition education intervention for women residents of Washington, DC, public housing communities (2006)

Shankar, Sharada, Klassen, Ann C., Garrett-Mayer, Elizabeth, Houts, Peter S., Wang, Ting, McCarthy, Marlene, ...

We designed, implemented and evaluated an educational intervention to increase fruit and vegetable consumption among urban African-American women. Women aged 20-50 years (n = 212) from 11 public...

SCAssign: a sparky extension for the NMR resonance assignment of aliphatic side-chains of uniformly 13C,15N-labeled large proteins (2006)

Zhang, Lei, Yang, Daiwen

Summary: SCAssign (side-chain assignment) is a Sparky extension written in Python to assist the NMR resonance assignment of aliphatic side-chains of uniformly 13C,15N-labled large proteins. It is...

Muscarinic Acetylcholine Receptors Stimulate Ca2+ Influx in PC12D Cells Predominantly via Activation of Ca2+ Store-Operated Channels (2006)

Ebihara, Tatsuhiko, Guo, Feifan, Zhang, Lei, Kim, Ju Young, Saffen, David

Activation of muscarinic acetylcholine receptors (mAChRs) causes the rapid release of Ca2+ from intracellular stores and a sustained influx of external Ca2+ in PC12D cells, a subline of the...

Muscarinic Acetylcholine Receptors Activate TRPC6 Channels in PC12D Cells via Ca2+ Store-Independent Mechanisms (2006)

Zhang, Lei, Guo, Feifan, Kim, Ju Young, Saffen, David

In this paper we report that stimulation of mAChRs in PC12D cells activates Ca2+ channels that are regulated independently of intracellular Ca2+ stores. In nominally Ca2+-free medium,...

Citrate Transporters Play a Critical Role in Aluminium-stimulated Citrate Efflux in Rice Bean (Vigna umbellata) Roots (2006)

YANG, JIAN LI, ZHANG, LEI, LI, YA YING, YOU, JIANG FENG, WU, PING, ZHENG, SHAO JIAN

• Background and Aims Aluminium (Al) stimulates the efflux of citrate from apices of rice bean (Vigna umbellata) roots. This response is delayed at least 3 h when roots are exposed to 50 µM Al,...

Functional redundancy of transcription factor-binding sites in the killer cell Ig-like receptor (KIR) gene promoter (2006)

Presnell, Steven R., Zhang, Lei, Ramilo, Cecilia A., Chan, Huei-Wei, Lutz, Charles T.

Variegated expression of inhibitory killer cell Ig-like receptors (KIRs) for MHC class I molecules helps NK cells distinguish normal from aberrant self and avoid autoreactivity. Prior studies of KIR...

Evaluation of a nutrition education intervention for women residents of Washington, DC, public housing communities (2006)

Shankar, Sharada, Klassen, Ann C., Garrett-Mayer, Elizabeth, Houts, Peter S., Wang, Ting, McCarthy, Marlene, ...

We designed, implemented and evaluated an educational intervention to increase fruit and vegetable consumption among urban African-American women. Women aged 20-50 years (n = 212) from 11 public...

Agent-Based Model of Price Competition, Capacity Choice, and Product Differentiation on Congested Networks (2006)

Lei Zhang, David Levinson

Using consistent agent-based techniques, this research models the decision-making processes of users and infrastructure owner/operators to explore the welfare consequence of price competition,...

Homogenization of parabolic equations with a continuum of space and time scales (2005)

Owhadi, Houman, Zhang, Lei

This paper addresses the issue of homogenization of linear divergence form parabolic operators in situations where no ergodicity and no scale separation in time or space are available. Namely, we...

Access Scheduling and Controller Design in Networked Control Systems (2005)

Zhang, Lei

A Networked Control System (NCS) is a control system in which the sensors and actuators are connected to a feedback controller via a shared communication medium. In an NCS, the shared medium can only...

Access Scheduling and Controller Design in Networked Control Systems (2005)

Zhang, Lei

A Networked Control System (NCS) is a control system in which the sensors and actuators are connected to a feedback controller via a shared communication medium. In an NCS, the shared medium can only...

Metric based up-scaling (2005)

Owhadi, Houman, Zhang, Lei

We consider divergence form elliptic operators in dimension $n\geq 2$ with $L^\infty$ coefficients. Although solutions of these operators are only H\"{o}lder continuous, we show that they are...

Aberrant Gene Expression in Organs of Bovine Clones That Die Within Two Days after Birth1 (2005)

Shijie Li, Yanxin Li, Weihua Du, Lei Zhang, Shuyang Yu, Yunping Dai, ...

Cloning by somatic nuclear transfer is an inefficient process in which some of the cloned animals die shortly after birth and display organ abnormalities. In an effort to determine the possible...

Provisioning virtual private networks in the hose model with delay requirements (2005)

Zhang, Lei, Muppala, Jogesh K., Chanson, Samuel T.

Virtual Private Networks (VPN) provide a cost-effective means of meeting the communication needs among several sites. The hose model for VPN configuration alleviates the scalability problem of the...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order to...

Analytical and numerical development on vibration of shells. (2005)

Zhang, Lei

The subject of free vibration analysis of thin cylindrical shells is one that extends well back into the last century. In general, the computational methods can be classified as analytical methods...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order...

Analytical and numerical development on vibration of shells. (2005)

Zhang, Lei

The subject of free vibration analysis of thin cylindrical shells is one that extends well back into the last century. In general, the computational methods can be classified as analytical methods...

Angiotensin receptor blockade and apoptosis in chronic allograft nephropathy / (2005)

Zhang, Lei.

München, Techn. Univ., Diss., 2005 (Nicht für den Austausch).

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order...

Analytical and numerical development on vibration of shells. (2005)

Zhang, Lei

The subject of free vibration analysis of thin cylindrical shells is one that extends well back into the last century. In general, the computational methods can be classified as analytical methods...

Free vibration analysis of stepped circular Mindlin plates (2005)

Xiang, Y., Zhang, Lei

This paper presents the first-known investigation on exact vibration of circular Mindlin plates with multiple step-wise thickness variations. A stepped circular plate is divided into multiple annular...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order...

Analytical and numerical development on vibration of shells (2005)

Zhang, Lei, School Of Engineering And Industrial Design

The subject of free vibration analysis of thin cylindrical shells is one that extends well back into the last century. In general, the computational methods can be classified as analytical methods...

Analytical and numerical development on vibration of shells (2005)

Zhang, Lei, School Of Engineering And Industrial Design

The subject of free vibration analysis of thin cylindrical shells is one that extends well back into the last century. In general, the computational methods can be classified as analytical methods...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order...

Understanding viral-immune dynamics in HIV infection (2005)

Zhang, Lei

The HIV epidemic has caused a health crisis globally. Using mathematical and statistical tools, we have analysed and modelled data from animal models of HIV, HSV and influenza virus, in order to...

An enhanced model for searching in semantic portals (2005)

Lei Zhang, Yong Yu, Yin Yang, Jian Zhou, Chenxi Lin

Semantic Portal is the next generation of web portals that are powered by Semantic Web technologies for improved information sharing and exchange for a community of users. Current methods of...

Color demosaicking via directional linear minimum mean square-error estimation (2005)

Lei Zhang, Xiaolin Wu, Senior Member

Abstract-- Digital color cameras sample scenes using a color filter array of mosaic pattern (e.g. the Bayer pattern). The demosaicking of the color samples is critical to the quality of digital...

Discriminant analysis with tensor representation (2005)

Shuicheng Yan, Dong Xu, Qiang Yang, Lei Zhang, Xiaoou Tang, Hong-jiang Zhang

In this paper, we present a novel approach to solving the supervised dimensionality reduction problem by encoding an image object as a general tensor of 2nd or higher order. First, we propose a...

An Enhanced Model for Searching in Semantic Portals (2005)

Lei Zhang, Yong Yu, Yin Yang, Jian Zhou, ChenXi Lin

Semantic Portal is the next generation of web portals that are powered by Semantic Web technologies for improved information sharing and exchange for a community of users. Current methods of...

The KudOS Architecture for File Systems (2005)

Andrew De Los, Chris Frost, Eddie Kohler, Mike Mammarella, Lei Zhang

INTRODUCTION For robustness, stability, and reboot speed, file system implementations must ensure that the file system's stored image is kept consistent or easy to return to consistency....

Face synthesis and recognition from a single image under arbitrary unknown lighting using a spherical harmonic basis morphable model (2005)

Lei Zhang, Sen Wang, Dimitris Samaras

Understanding and modifying the effects of arbitrary illumination on human faces in a realistic manner is a challenging problem both for face synthesis and recognition. Recent research demonstrates...

Concurrent subspaces analysis (2005)

Dong Xu, Shuicheng Yan, Lei Zhang, Hong-jiang Zhang, Zhengkai Liu, Heung-yeung Shum

A representative subspace is significant for image analysis, while the corresponding techniques often suffer from the curse of dimensionality dilemma. In this paper, we propose a new algorithm,...

Efficient 3D reconstruction for face recognition (2005)

Dalong Jiang, Yuxiao Hu, Shuicheng Yan, Lei Zhang, Hongjiang Zhang, Wen Gao

� This work was performed while the authors were visiting Microsoft Research Asia.

Machine learning for clinical diagnosis from functional magnetic resonance imaging (2005)

Lei Zhang, Dimitris Samaras

Functional Magnetic Resonance Imaging (fMRI) has enabled scientists to look into the active human brain. FMRI provides a sequence of 3D brain images with intensities representing brain activations....

Exploiting temporal information in functional magnetic resonance imaging brain data (2005)

Lei Zhang, Dimitris Samaras, Nelly Alia-klein, Lisa Cottone, Andreana Leskovjan, Nora Volkow

Abstract. Functional Magnetic Resonance Imaging(fMRI) has enabled scientists to look into the active human brain, leading to a flood of new data, thus encouraging the development of new data analysis...

Towards Imaging Large-Scale Ontologies for Quick Understanding and Analysis (2005)

Kewei Tu, Miao Xiong, Lei Zhang, Haiping Zhu, Jie Zhang, Yong Yu

Abstract. In many practical applications, ontologies tend to be very large and complicated. In order for users to quickly understand and analyze large-scale ontologies, in this paper we propose a...

Discriminant analysis with tensor representation (2005)

Shuicheng Yan, Dong Xu, Qiang Yang, Lei Zhang, Xiaoou Tang, Hong-jiang Zhang

In this paper, we present a novel approach to solving the supervised dimensionality reduction problem by encoding an image object as a general tensor of 2nd or higher order. First, we propose a...

Free vibration analysis of stepped circular Mindlin plates (2005)

Xiang, Y., Zhang, Lei

This paper presents the first-known investigation on exact vibration of circular Mindlin plates with multiple step-wise thickness variations. A stepped circular plate is divided into multiple annular...

Photosynthetic responses of C3 and C4 species to seasonal water variability and competition (2005)

Niu, Shuli, Yuan, Zhiyou, Zhang, Yanfang, Liu, Weixing, Zhang, Lei, Huang, Jianhui, ...

This study examined the impacts of seasonal water variability and interspecific competition on the photosynthetic characteristics of a C3 (Leymus chinensis) and a C4 (Chloris virgata) grass species....

Photosynthetic responses of C3 and C4 species to seasonal water variability and competition (2005)

Niu, Shuli, Yuan, Zhiyou, Zhang, Yanfang, Liu, Weixing, Zhang, Lei, Huang, Jianhui, ...

This study examined the impacts of seasonal water variability and interspecific competition on the photosynthetic characteristics of a C3 (Leymus chinensis) and a C4 (Chloris virgata) grass species....

Photosynthetic responses of C3 and C4 species to seasonal water variability and competition (2005)

Niu, Shuli, Yuan, Zhiyou, Zhang, Yanfang, Liu, Weixing, Zhang, Lei, Huang, Jianhui, ...

This study examined the impacts of seasonal water variability and interspecific competition on the photosynthetic characteristics of a C3 (Leymus chinensis) and a C4 (Chloris virgata) grass species....

Determinants of Route Choice and the Value of Traveler Information: A Field Experiment (2005)

Lei Zhang, David Levinson

A major strategy of federal ITS initiatives and state departments of transportation is to provide traveler information to motorists through various means, including variable message signs, the...

Road pricing with autonomous links (2005)

Lei Zhang, David Levinson

This research seeks to examine road pricing on a network of autonomous highway links. “Autonomous ” refers to the links ’ being competitive and independent and having the objective of...

Compactness of solutions to the Yamabe problem. II (2004)

Li, YanYan, Zhang, Lei

We study compactness of solutions to the Yamabe problem on Riemannian manifolds which are not locally conformally flat.

Negative refraction and superlensing in a 2D photonic crystal structure (2004)

Moussa, R., Foteinopoulou, S., Zhang, Lei, Tuttle, G., Guven, K., Ozbay, E., ...

We experimentally and theoretically studied a new left-handed (LH) structure based on a photonic crystal (PC) with a negative refractive index. The structure consists of triangular array of...

Modulational instability of dust envelope waves with grain and charge distribution (2004)

Duan, Wen-shan, Parkes, John*, Zhang, Lei

A reasonable normalization for a dusty plasma with many different species of dust grains is adopted. By applying a reductive perturbation technique to the equations governing a dusty plasma with N...

Modulational instability of dust envelope waves with grain and charge distribution (2004)

Duan, Wen-Shan, Parkes, John, Zhang, Lei

A reasonable normalization for a dusty plasma with many different species of dust grains is adopted. By applying a reductive perturbation technique to the equations governing a dusty plasma with N...

Modulational instability of dust envelope waves with grain and charge distribution (2004)

Duan, Wen-shan, Parkes, John, Zhang, Lei

A reasonable normalization for a dusty plasma with many different species of dust grains is adopted. By applying a reductive perturbation technique to the equations governing a dusty plasma with N...

Modulational instability of dust envelope waves with grain and charge distribution (2004)

Duan, Wen-shan, Parkes, John, Zhang, Lei

A reasonable normalization for a dusty plasma with many different species of dust grains is adopted. By applying a reductive perturbation technique to the equations governing a dusty plasma with N...

Economic Development and Land-Use Conversion in the Main Course Area of the Yangtse River Basin (2004)

Lei Zhang

En tant qu’éléments clés du milieu naturel, les ressources foncières et leur exploitation jouent un rôle très important pour promouvoir l’industrialisation régionale. Celle-ci a abouti non...

New Diversity Criterion and Database Compression Method (2004)

Bing Liu, Aijun Lu, Lei Zhang, Haibo Liu, Zhenming Liu, Jiaju Zhou

Based on the topological scaffold classification approach to cluster a structural database, we propose a new criterion to evaluate the diversity of a chemical structural database. This criterion is...

Virtuality and the city : Benjamin against Baudrillard (2004)

Zhang, Lei

(Uncorrected OCR) Abstract of thesis entitled Virtuality and the City: Benjamin against Baudrillard Submitted by Zhang Lei for the degree of Master of Philosophy at the University of Hong Kong in...

SPECTROSCOPY OF SUBSTITUTED CYCLOHEXOXY RADICALS AND KINETICS OF THEIR REACTIONS WITH $O_{2}$ (2004)

Dibble, Theodore S., Zhang, Lei, Callahan, Karen M., Derbyshire, Dean A.

Author Institution: Chemistry Department, SUNY-Environmental Science and Forestry; Chemistry Department, The Ohio State University; Chemistry Department, Le Moyne College

Virtuality and the city : Benjamin against Baudrillard (2004)

Zhang, Lei

(Uncorrected OCR) Abstract of thesis entitled Virtuality and the City: Benjamin against Baudrillard Submitted by Zhang Lei for the degree of Master of Philosophy at the University of Hong Kong in...

Stabilization of Networked Control Systems: Designing Effective Communication Sequences (2004)

Zhang, Lei, Hristu-Varsakelis, D.

This paper discusses the stabilization of a networked control system (NCS) whose sensors and actuators exchange information with a remote controller over a shared communication medium. Access to that...

Stabilization of Networked Control Systems under Feedback-based Communication (2004)

Zhang, Lei, Hristu-Varsakelis, D.

We study the stabilization of a networked control system (NCS) in which multiple sensors and actuators of a physical plant share a communication medium to exchange information with a remote...

fMRI evidence for the automatic phonological activation of briefly presented words (2004)

Peng, Dan-ling, Ding, Guo-sheng, Perry, Conrad, Xu, Duo, Jin, Zhen, Luo, Qian, ...

Functional magnetic resonance imaging was used to investigate whether people generate the phonology of briefly presented words that they do not attend. This was done in Chinese by examining the...

fMRI evidence for the automatic phonological activation of briefly presented words (2004)

Peng, Dan-ling, Ding, Guo-sheng, Perry, Conrad, Xu, Duo, Jin, Zhen, Luo, Qian, ...

Functional magnetic resonance imaging was used to investigate whether people generate the phonology of briefly presented words that they do not attend. This was done in Chinese by examining the...

Stabilization of Networked Control Systems: Designing Effective Communication Sequences (2004)

Zhang, Lei, Hristu-Varsakelis, Dimitrios

This paper discusses the stabilization of a networked control system (NCS) whose sensors and actuators exchange information with a remote controller over a shared communication medium. Access to that...

Stabilization of Networked Control Systems under Feedback-based Communication (2004)

Zhang, Lei, Hristu-Varsakelis, Dimitrios

We study the stabilization of a networked control system (NCS) in which multiple sensors and actuators of a physical plant share a communication medium to exchange information with a remote...

Virtuality and the city : Benjamin against Baudrillard (2004)

Zhang, Lei

(Uncorrected OCR) Abstract of thesis entitled Virtuality and the City: Benjamin against Baudrillard Submitted by Zhang Lei for the degree of Master of Philosophy at the University of Hong Kong in...

fMRI evidence for the automatic phonological activation of briefly presented words (2004)

Peng, Dan-ling, Ding, Guo-sheng, Perry, Conrad, Xu, Duo, Jin, Zhen, Luo, Qian, ...

Functional magnetic resonance imaging was used to investigate whether people generate the phonology of briefly presented words that they do not attend. This was done in Chinese by examining the...

fMRI evidence for the automatic phonological activation of briefly presented words (2004)

Peng, Dan-ling, Ding, Guo-sheng, Perry, Conrad, Xu, Duo, Jin, Zhen, Luo, Qian, ...

Functional magnetic resonance imaging was used to investigate whether people generate the phonology of briefly presented words that they do not attend. This was done in Chinese by examining the...

Pose invariant face recognition under arbitrary unknown lighting using spherical harmonics (2004)

Lei Zhang, Dimitris Samaras

Abstract. We propose a new method for face recognition under arbitrary pose and illumination conditions, which requires only one training image per subject. Furthermore, no limitation on the pose and...

SPortS: Semantic+Portal+Service (2004)

Chenxi Lin, Lei Zhang, Jian Zhou, Yin Yang, Yong Yu

Abstract. Ontology-based web portal generation and management is an active field of research and development. Recently, many systems have been developed. However, many of them lack the integration of...

Calc. Var. 24, 185–237 (2005) Calculus of Variations DOI: 10.1007/s00526-004-0320-7 (2004)

Yanyan Li, Lei Zhang

Let (M n,g) be a compact, smooth, connected Riemannian manifold (without boundary) of dimension n ≥ 3. The Yamabe conjecture has been proved through the works of Yamabe [92], Trudinger [91], Aubin...

Efficient propagation for face annotation in family albums (2004)

Lei Zhang, Yuxiao Hu, Mingjing Li, Weiying Ma, Hongjiang Zhang

In this paper, we propose and investigate a new user scenario for face annotation, in which users are allowed to multi-select a group of photographs and assign names to these photographs. The system...

Y.: ORIENT: Integrate ontology engineering into industry tooling environment (2004)

Lei Zhang, Yong Yu, Jing Lu, Chenxi Lin, Kewei Tu, Mingchuan Guo, ...

Abstract. Orient is a project to develop an ontology engineering tool that integrates into existing industry tooling environments – the Eclipse platform and the WebSphere Studio developing tools...

Towards composing information providing services (2004)

Chenxi Lin, Yong Yu, Yin Yang, Lei Zhang, Jian Zhou

Composing web services is an active field of research and development. Recently, many efforts are devoted to process integration on world changing services, e.g. business process composition. In this...

SPortS: Semantic + Portal + Service (2004)

Chenxi Lin Lei, Lei Zhang, Jian Zhou, Yin Yang, Yong Yu

Ontology-based web portal generation and management is an active field of research and development. Recently, many systems have been developed. However, many of them lack the integration of web...

Automatic 3d reconstruction for face recognition (2004)

Yuxiao Hu, Dalong Jiang, Shuicheng Yan, Lei Zhang, Hongjiang Zhang

An analysis-by-synthesis framework for face recognition with variant pose, illumination and expression (PIE) is proposed in this paper. First, an efficient 2D-to-3D integrated face reconstruction...

Boosting image classification with LDA-based feature combination for digital photograph management (2004)

Xuezheng Liu, Lei Zhang, Mingjing Li, Hongjiang Zhang, Dingxing Wang

Image classification is of great importance for digital photograph management. In this paper we propose a general statistical learning method based on boosting algorithm to perform image...

Efficient propagation for face annotation in family albums (2004)

Lei Zhang, Yuxiao Hu, Mingjing Li, Weiying Ma, Hongjiang Zhang

In this paper, we propose and investigate a new user scenario for face annotation, in which users are allowed to multi-select a group of photographs and assign names to these photographs. The system...

(Extended Abstract) (2004)

Michael V. Mannino, Lei Zhang, Injun Choi, Michael V. Mannino, Lei Zhang, Injun Choi

We present efficiency models to evaluate data warehouse operations and analyze a preliminary data set using one of the models. The macro model represents the efficiency of operating a collection of...

fMRI evidence for the automatic phonological activation of briefly presented words (2004)

Peng, Dan-ling, Ding, Guo-sheng, Perry, Conrad, Xu, Duo, Jin, Zhen, Luo, Qian, ...

Functional magnetic resonance imaging was used to investigate whether people generate the phonology of briefly presented words that they do not attend. This was done in Chinese by examining the...

Structural features of the rice chromosome 4 centromere (2004)

Zhang, Yu, Huang, Yuchen, Zhang, Lei, Li, Ying, Lu, Tingting, Lu, Yiqi, ...

A complete sequence of a chromosome centromere is necessary for fully understanding centromere function. We reported the sequence structures of the first complete rice chromosome centromere through...

Some properties of flows at freeway bottlenecks (2004)

Lei Zhang, David Levinson

The capacity of a freeway segment should be measured only when it is an active bottleneck. The properties of flows at active freeway bottlenecks have a bearing on both the definition of capacity and...

Variation of the Subjective Value of Travel Time on Freeways and Ramp Meters (2004)

Lei Zhang, Feng Xie, David Levinson

This paper explores drivers ’ subjective value of time under moving and stopped freeway travel conditions using a stated preference survey. Unlike previous studies that assume a constant value of...

Evaluating effectiveness of ramp meters: Evidence from the Twin Cities ramp meter shut-off (2004)

David Levinson, Lei Zhang

Ramp meters in the Twin Cities have been turned off for eight weeks in Fall 2000 in an experiment testing their effectiveness. This chapter analyzes the data collected during the experiment on...

Pricing, Investment, and Network Equilibrium (2004)

Lei Zhang, David Levinson

Despite rapidly emerging innovative road pricing and investment principles, the development of a long run network dynamics model for necessary policy evaluation is still lagging. This research...

Investing for Reliability and Security in Transportation Networks. Presented at 84th Annual Meeting of the Transportation Research Board (2004)

Lei Zhang, David Levinson

Alternative transportation investment policies can lead to very different network forms in the future. The desirability of a transportation network should be assessed not only by its economic...

FACTORS INFLUENCING SHOOT REGENERATION FROM COTYLEDONS OF TETRAPLOID ISATIS INDIGOTICA FORT. (2003)

LEI ZHANG, TIEFENG XU, XIAOFEN SUN, HANMING ZHANG, TIANLIN TANG, KEXUAN TANG

An efficient in vitro plant regeneration system from cotyledons was established in tetraploid Isatis indigotica Fort. Factors influencing shoot regeneration from cotyledons, including culture medium...

Exchange monitoring bands: theory and policy (2003)

Corrado, Luisa, Miller, Marcus H., Zhang, Lei

Recent empirical research by Mark Taylor and co-authors has found evidence of hybrid dynamics for the real exchange rate. While there is a random walk near equilibrium, for real exchange rates some...

The third generation mobile phone market in China : an analysis of its development and forecasts about its future (2003)

Zhang, Lei

This thesis has used several recent secondary research reports on the subject of 3G markets as a starting point to analyse and assess the market for the new 'third generation' 3G mobile phones in...

The third generation mobile phone market in China : an analysis of its development and forecasts about its future (2003)

Zhang, Lei

This thesis has used several recent secondary research reports on the subject of 3G markets as a starting point to analyse and assess the market for the new 'third generation' 3G mobile...

Integrating directory service into business applications / (2003)

Zhang, Lei.

Thesis (M. Sc. (CIM))--Nanyang Technological University, School of Mechanical and Production Engineering, 2003.

Ethernet module design for a 32-bit micro controller / (2003)

Zhang, Lei.

Thesis (M. Sc. (Microelect.))--Nanyang Technological University, School of Electrical and Electronic Engineering, 2003.

The third generation mobile phone market in China : an analysis of its development and forecasts about its future (2003)

Zhang, Lei

This thesis has used several recent secondary research reports on the subject of 3G markets as a starting point to analyse and assess the market for the new 'third generation' 3G mobile phones in...

Liouville type theorems and Harnack type inequalities for semilinear elliptic equations (2003)

Yanyan Li, Lei Zhang

Dedicated with admiration to L. Nirenberg on his seventy-fifth birthday 1

Learning in region-based image retrieval (2003)

Feng Jing, Mingjing Li, Lei Zhang, Hong-jiang Zhang, Bo Zhang

Abstract. In this paper, several effective learning algorithms using global image representations are adjusted and introduced to region-based image retrieval (RBIR). First, the query point movement...

Data Migration for Ontology Evolution (2003)

Zhuo Zhang, Lei Zhang, Chenxi Lin, Yan Zhao, Yong Yu

Ontology is the conceptual backbone that provides meaning to data on the Semantic Web. However, ontology is not a static resource and may evolve over time. Ontology’s change often leaves the...

Automated Annotation of Human Faces in Family Albums (2003)

Lei Zhang, Hongjiang Zhang

Automatic annotation of photographs is one of the most desirable needs in family photograph management systems. In this paper, we present a learning framework to automate the face annotation in...

Bayesian Face Annotation in Family Albums (2003)

Lei Zhang, Longbin Chen, Mingjing Li, Hongjiang Zhang

Automatic annotation of photographs is one of the most desirable needs in family photograph management systems. This paper presents a new framework for semiautomated face annotation in family photo...

Learning in region-based image retrieval (2003)

Feng Jing, Mingjing Li, Lei Zhang, Hong-jiang Zhang, Bo Zhang

Abstract. In this paper, several effective learning algorithms using global image representations are adjusted and introduced to region-based image retrieval (RBIR). First, the query point movement...

Inactivation of DNA repair gene O6-methylguanine-DNA methyltransferase by promoter hypermethylation and its relation to p53 mutations in esophageal squamous cell carcinoma (2003)

Zhang, Lei, Lu, Wenfu, Miao, Xiaoping, Xing, Deyin, Tan, Wen, Lin, Dongxin

The development of esophageal squamous cell carcinoma (ESCC) has been linked to exposure to carcinogens such as nitrosamines that cause various alkyl DNA damages and O6-methylguanine-DNA...

Inactivation of DNA repair gene O6-methylguanine-DNA methyltransferase by promoter hypermethylation and its relation to p53 mutations in esophageal squamous cell carcinoma (2003)

Zhang, Lei, Lu, Wenfu, Miao, Xiaoping, Xing, Deyin, Tan, Wen, Lin, Dongxin

The development of esophageal squamous cell carcinoma (ESCC) has been linked to exposure to carcinogens such as nitrosamines that cause various alkyl DNA damages and O6-methylguanine–DNA...

Protein-protein interaction map for yeast TFIID (2003)

Yatherajam, Gayatri, Zhang, Lei, Kraemer, Susan M., Stargell, Laurie A.

A major rate‐limiting step in transcription initiation by RNA polymerase II is recognition and binding of the TATA element by the transcription factor TFIID. TFIID is composed of TATA binding...

Synoviolin/Hrd1, an E3 ubiquitin ligase, as a novel pathogenic factor for arthropathy (2003)

Amano, Tetsuya, Yamasaki, Satoshi, Yagishita, Naoko, Tsuchimochi, Kaneyuki, Shin, Hiroshi, Kawahara, Ko-ichi, ...

Rheumatoid arthritis (RA) is one of the most critical articular diseases with synovial hyperplasia followed by impairment of quality of life. However, the mechanism(s) that regulates synovial cell...

Synoviolin/Hrd1, an E3 ubiquitin ligase, as a novel pathogenic factor for arthropathy (2003)

Amano, Tetsuya, Yamasaki, Satoshi, Yagishita, Naoko, Tsuchimochi, Kaneyuki, Shin, Hiroshi, Kawahara, Ko-ichi, ...

Rheumatoid arthritis (RA) is one of the most critical articular diseases with synovial hyperplasia followed by impairment of quality of life. However, the mechanism(s) that regulates synovial cell...

Inactivation of DNA repair gene O6-methylguanine-DNA methyltransferase by promoter hypermethylation and its relation to p53 mutations in esophageal squamous cell carcinoma (2003)

Zhang, Lei, Lu, Wenfu, Miao, Xiaoping, Xing, Deyin, Tan, Wen, Lin, Dongxin

The development of esophageal squamous cell carcinoma (ESCC) has been linked to exposure to carcinogens such as nitrosamines that cause various alkyl DNA damages and O6-methylguanine-DNA...

Optimal Freeway Ramp Control without Origin- Destination Information (2003)

Lei Zhang, David Levinson

This paper develops an analytical framework for ramp metering, under which various ramp control strategies can be viewed as ramifications of the same most-efficient control logic with different...

Relationships between ramp metering and sprawl (2003)

Lei Zhang, David Levinson

This paper explores impacts of ramp metering on urban land use. A regression-based transportation model is developed to capture changes in accessibility caused by ramp metering on a highway network....

A model of the rise and fall of roads (2003)

Lei Zhang, David Levinson

Transportation network planning decisions made at one point of time can have profound impacts in the future. However, transportation networks are usually assumed to be static in models of land use. A...

ASCE Journal of Transportation Engineering 131(6) pp.477-481 Balancing Efficiency and Equity of Ramp Meters (2003)

Lei Zhang, David Levinson

A new freeway ramp control objective – minimizing total weighted travel time is presented in this study. This new objective function is capable of balancing efficiency and equity of ramp meters,...

Zhang, Lei and David Levinson (2004). Ramp Metering and Freeway Bottleneck Capacity. Transportation Research: A Policy and Practice (in press) Ramp Metering and the Capacity of Active Freeway Bottlenecks (2003)

Lei Zhang, David Levinson

The objective of this study is to determine whether ramp meters increase the capacity of active freeway bottlenecks, and if they do, how. The traffic flow characteristics at twenty-seven active...

Synthesis of pCpCpA-3'-NH-phenylalanine as a ribosomal substrate (2002)

Zhang, Biliang, Zhang, Lei, Sun, Lele, Cui, Zhiyong

[reaction: see text] The trinucleotide cytidylyl(3'-->5'phosphoryl)cytidylyl(3'-->5'phosphoryl)-3'-deoxy-3'-(L-ph enylalanyl) amido adenosine (CpCpA-NH-Phe) was synthesized by phosphoramidite...

Exchange Rate Monitoring Bands: Theory and Policy (2002)

Corrado, Luisa, Miller, Marcus, Zhang, Lei

Recent empirical research by Mark Taylor and coauthors has found evidence of hybrid dynamics for real exchange rates. While there is a random walk near equilibrium, for real exchange rates some...

Engineering performance improvement based on the integration of genetic algorithms and artificial neural networks (2002)

Zhang, Lei

The sector of industrial facility construction has been experiencing unsuccessful project implementations for a long time. Both the industry and the academic world have realized the significant...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei.

A thesis submitted for the degree of Master of Engineering (Civil), School of Engineering and Industrial Design, University of Western Sydney, 2002. Bibliography : p. 42-46.

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei, School Of Engineering And Industrial Design

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei, School Of Engineering And Industrial Design

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Exact solution for vibration of stepped circular Mindlin plates (2002)

Zhang, Lei, School Of Engineering And Industrial Design

This thesis presents the first-known exact solutions for vibration of stepped circular Mindlin plates. The considered circular plate is of several step-wise variation in thickness in the radial...

Knowledge graph theory and structural parsing (2002)

Lei Zhang, C L. Zhang, Lei Zhang

photocopy or any other means without the permission

International Journal of Image and Graphics (2002)

Longbin Chen, Baogang Hu, Lei Zhang, Mingjing Li, Hongjiang Zhang

this paper, we propose a framework to semi-automatically annotate faces in family photo albums. The core of the framework is the features used to define face similarity and this results in the...

MyPhotos - A System for Home Photo Management and Processing (2002)

Yanfeng Sun, Hongjiang Zhang, Lei Zhang, Mingjing Li

MyPhotos is a prototype system for home photo management and processing. Several home user orientated image processing and analysis tools are provided. And several auto grouping methods can help user...

Gaussian Mixture Model for Relevance Feedback in Image Retrieval (2002)

Fang Qian, Mingjing Li, Lei Zhang, Hong-Jiang Zhang, Bo Zhang

Relevance Feedback (RF) has become a powerful technique in content-based image retrieval. Most RF methods assume that positive images follow the single Gaussian distribution, which is not sufficient...

DEVELOPING EFFICIENT AND EQUITABLE FREEWAY RAMP CONTROL STRATEGIES (2002)

Lei Zhang, Lei Zhang

and have found that it is complete and satisfactory in all aspects, and that any revisions required by the final

Optimal transfection with the HK polymer depends on its degree of branching and the pH of endocytic vesicles (2002)

Chen, Qing-Rong, Zhang, Lei, Luther, Paul W., Mixson, A. James

We have recently reported that liposomes in combination with histidine (HK)-containing polymers enhanced the expression of luciferase in transfected cells. In transformed or malignant cell lines,...

Anisotropy and spin-reorientations in Co-rich rare earth compounds (2001)

Buschow, K.H.J., Hu, Shejun, Tegus, O., Zhang, Lei, Bruck, E.H., Boer, F.R. De

The effect on the magnetocrystalline anisotropy of substitution of several types of non-magnetic atoms into the various Co sites of R Co compounds has been studied. A substitution scheme is presented...

Applications of Structured Total Least Norm method / (2001)

Zhang, Lei.

Thesis (Ph. D.)--University of Minnesota, 2001.

Expression of Drosophila TRPL cation channel induces apoptosis in a prostate cancer cell line (2001)

Zhang, Lei.

Typescript (bound) Includes bibliographical references (leaves 189-241).

Learning to Generate Semantic Annotation for Domain Specific Sentences (2001)

Jianming Li, Lei Zhang, Yong Yu

Seas of web pages in the Internet contain free texts in natural language that are only read by human beings. To be understandable for machines, these pages should be annotated with semantic markups....