Lei Zheng, Andrew K. Chan, Gary Mccord, Steve Wu, J. Steve Liu
When cancerous masses are embedded in and camouflaged by varying densities of parenchymal tissue structures, they are very difficult to be visually detected from mammograms. This paper presents a...
coding based on wavelet and (2009)
Lei Zheng, Andrew K. Chan, J. C. Liu
Spatial-temporal segmentation scheme for object-oriented video
An Object-oriented Image Coding Scheme Based on DWT and Markov Random Field (2009)
Lei Zheng, Hsien-hsun Wu, Jyh Charn Liu, Andrew K. Chan
In this paper, we introduce an object-oriented image coding algorithm to differentiate regions of interest (ROI) in visual communications. Our scheme is motivated by the fact that in visual...
Lei Zheng, Andrew K. Chan, Senior Member, Steve Liu, Walter Smith, Ronald J. Holyer
Abstract — Aerial image is one of the primary data sources for underwater oceanographic studies. These images are often corrupted by clutters induced by surface water waves. Removal of the wave...
DWT Based MMRF Segmentation Algorithm for Remote Sensing Image Processing (2009)
Lei Zheng, Andrew Chan, J. Steve Liu
ABSTRACT 2. ALGORITHM DEVELOPMENT Image segmentation is very important for pattern recognition, ROI compression and information collection in remote sensing studies. In this paper, we propose an...
N-[4-(β-d-Allopyranosyloxy)benzylidene]methylamine (2009)
Shi-Ming Lv, Lei Zheng, Hui Zhao, Ying Li, Shu-Fan Yin
The title compound, C14H19NO6, was synthesized by the condensation reaction between hecilid (4-formylphenl-β-d-allopyranoside) and methylamine in methanol. In the crystal structure, the pyran...
N,N-Dimethyl-4-[(E)-phenyliminomethyl]aniline (2009)
Lei Zheng, Xiu-juan Yin, Cong-ling Yang, Ying Li, Shu-fan Yin
The title compound, C15H16N2, contains two aromatic rings linked through an imino group. The molecule exhibits an E configuration with respect to the C=N bond. The dihedral angle between the aromatic...
1-[4-(2,3,4,6-Tetra-O-acetyl-β-d-allopyranosyloxy)benzylidene]thiosemicarbazide (2009)
Li Fu, Xiu-juan Yin, Lei Zheng, Ying Li, Shu-fan Yin
The title compound, C22H27N3O10S, was synthesized by reaction of an ethanol solution of helicid (systematic name: 4-formylphenl-β-d-allopyranoside), thiosemicarbazide and acetic acid. The...
(E)-4-(β-d-Allopyranosyloxy)cinnamyl 4-bromophenyl ketone ethanol solvate (2009)
Xiu-Juan Yin, Xue Bai, Lei Zheng, Ying Li, Shu-Fan Yin
The title compound, C21H21BrO7·C2H6O, was synthesized by the Claisen–Schimidt reaction of helicid (systematic name: 4-formylphenyl-β-d-allopyranoside) with 4-bromoacetophenone in...
Genetic characterization of Measles Viruses in China, 2004 (2008)
Zhang, Yan, Ji, Yixin, Jiang, Xiaohong, Xu, Songtao, Zhu, Zhen, Zheng, Lei, ...
Abstract Genetic characterization of wild-type measles virus was studied using nucleotide sequencing of the C-terminal region of the N protein gene and phylogenetic analysis on 59 isolates from 16...
Molecular epidemiology of measles viruses in China, 1995–2003 (2007)
Zhang, Yan, Zhu, Zhen, Rota, Paul A, Jiang, Xiaohong, Hu, Jiayu, Wang, Jianguo, ...
Abstract This report describes the genetic characterization of 297 wild-type measles viruses that were isolated in 24 provinces of China between 1995 and 2003. Phylogenetic analysis of the N gene...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Cobaltferrite-Bariumtitanate Sol-Gel Biferroics (2006)
Multiferroic materials that display a coexistence of ferroelectric and ferromagnetic responses attract interest because of their potential for several novel device applications. In multiferroic...
Cobaltferrite-Bariumtitanate Sol-Gel Biferroics (2006)
Multiferroic materials that display a coexistence of ferroelectric and ferromagnetic responses attract interest because of their potential for several novel device applications. In multiferroic...
The dissertation starts with an extensive literature survey on the current issues in content-based image retrieval (CBIR) research, the state-of-the-art theories, methodologies, and implementations,...
The dissertation starts with an extensive literature survey on the current issues in content-based image retrieval (CBIR) research, the state-of-the-art theories, methodologies, and implementations,...
GPCR signal transduction, function and cloning / (2006)
Thesis (Ph. D.)--University of California, Riverside, 2006.
Fa zhan yi lin xuan gong ying shang yu zhi hang bu huo zhi jue ce zhi yuan jia gou / (2005)
Nei rong wei ying wen
Robust Metric and Alignment for Profile-based Face Recognition: An Experimental Comparison (2005)
Gang Pan, Lei Zheng, Zhaohui Wu
The human facial profile curve provides complementary information of the face that is not present in the frontal-view face, which has been used in face identification, face analysis and modelling....
This dissertation was presented by
CHANGES IN BENTHIC ALGAL ATTRIBUTES DURING SALT MARSH RESTORATION (2004)
Lei Zheng, R. Jan Stevenson, Christopher Craft
To assess attributes of algal assemblages as indicators of salt marsh restoration, we chose eight pairs of salt marshes in North Carolina, USA, each pair with one restored marsh (from 1 to 28 years...
Using 2sat to improve sat (2004)
Typescript (photocopy) Includes bibliographical references (leaves 177-187)
Assessing wetlands and their restoration using algae / (2003)
Thesis (Ph. D.)--Michigan State University. Dept. of Zoology and Ecology, Evolutionary Biology, and Behavior Program, 2003.
Assessing wetlands and their restoration using algae / (2003)
Thesis (Ph. D.)--Michigan State University. Dept. of Zoology and Ecology, Evolutionary Biology, and Behavior Program, 2003.
Diss. Naturwiss. Bern.
Assessing wetlands and their restoration using algae [microform] / (2003)
Thesis (Ph. D.)--Michigan State University. Dept. of Zoology and Ecology, Evolutionary Biology, and Behavior Program, 2003.
Production of a Functional Catalytic Antibody ScFv-NusA Fusion Protein in Bacterial Cytoplasm (2003)
Zheng, Lei, Baumann, Ulrich, Reymond, Jean-Louis
Functional expression of catalytic antibodies in the cytoplasm of E. coli is potentially of great interest in searching for new catalysts by genetic selection. Herein, a catalytic antibody single...
Polyolefin cubic silsesquioxane nanocomposites (2002)
This thesis focuses on the synthesis and characterization of polyolefin nanocomposites containing polyhedral oligomeric silsesquioxane (POSS) units. Two copolymerization methods were developed...
Polyolefin cubic silsesquioxane nanocomposites (2002)
This thesis focuses on the synthesis and characterization of polyolefin nanocomposites containing polyhedral oligomeric silsesquioxane (POSS) units. Two copolymerization methods were developed...
Design and analysis of a content-based pathology image retrieval system / (2002)
Includes bibliographical references (leaves 47-51).
Improving SAT using 2SAT (2002)
Propositional satisfiability (SAT) is a fundamental problem of immense practical importance. While SAT is NP-complete when clauses can contain 3 literals or more, the problem can be solved in linear...
Improving SAT using 2SAT (2002)
Propositional satisability (SAT) is a fundamental problem of immense practical importance. While SAT is NP-complete when clauses can contain 3 literals or more, the problem can be solved in linear...
Transmission Spectra of Light to the Mammalian Retina (2000)
James Dillon, Lei Zheng, John C. Merriam, Elizabeth R. Gaillard
A simple method has been developed to determine the optical properties of the anterior segment of the intact eye. This consists of a probe that is inserted into the posterior sclera and detects light...
Molecular basis of RB and BRCA1 in the maintenance of genome stability : a dissertation / (2000)
Thesis (Ph. D.).--University of Texas Graduate School of Biomedical Sciences at San Antonio, 2000.
Regulation of BRCA1 Function by Phosphorylation (1998)
Mutations in the breast cancer susceptibility gene BRCA1 account for 50% of familial cases, and about 2 to 5% of all cases of breast cancer. Most of the BRCA 1 linked tumors have undergone loss of...
Wibo, Maurice, Feron, Olivier, Zheng, Lei, Maleki, Mehdi, Kolar, Frantisek, Godfraind, Théophile
Objective: The aim was to analyze the early postnatal changes in myocardial density, subsarcolemmal localization and isoform expression of dihydropyridine receptors in rat ventricle and the influence...
Finite free path transport in fibrous media /--by Lei Zheng. (1994)
Thesis directed by William C. Strieder for the Department of Chemical Engineering.
Typescript.
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
Synthesis and evaluation of a beta-adrenergic receptor ligand: Fluorine-18 labeled fluorocarazolol
Fluorocarazolol was synthesized, labeled with fluorine-18, and investigated as a potential radiopharmaceutical for use in positron tomography (PET). S-Fluorocarazolol was found to have a high...
BRCA1 mediates ligand-independent transcriptional repression of the estrogen receptor
Zheng, Lei, Annab, Lois A., Afshari, Cynthia A., Lee, Wen-Hwa, Boyer, Thomas G.
Mutational inactivation of BRCA1 confers a cumulative lifetime risk of breast and ovarian cancers. However, the underlying basis for the tissue-restricted tumor-suppressive properties of BRCA1...
Zheng, Lei, Chen, Yumay, Lee, Wen-Hwa
hsHec1p, a Homo sapiens coiled-coil-enriched protein, plays an important role in M-phase progression in mammalian cells. A Saccharomyces cerevisiae protein, identical to Tid3p/Ndc80p and here...
Retinoblastoma Protein Enhances the Fidelity of Chromosome Segregation Mediated by hsHec1p
Zheng, Lei, Chen, Yumay, Riley, Daniel J., Chen, Phang-Lang, Lee, Wen-Hwa
Retinoblastoma protein (Rb) plays important roles in cell cycle progression and cellular differentiation. It may also participate in M phase events, although heretofore only circumstantial evidence...
Ezzat, Shereen, Zheng, Lei, Zhu, Xian-Feng, Wu, Gillian E., Asa, Sylvia L.
It is estimated that up to one in five individuals develop pituitary gland tumors. Despite the common occurrence of these tumors, the pathogenetic mechanisms underlying their development remain...
Molecular mechanism of enantioselective proton transfer to carbon in catalytic antibody 14D9
Zheng, Lei, Baumann, Ulrich, Reymond, Jean-Louis
Catalytic antibody 14D9 catalyzes the enantioselective protonation of prochiral enol ethers with high enantioselectivity (>99% ee) and a practical turnover (kcat = 0.4 s-1), allowing for preparative...
An efficient one-step site-directed and site-saturation mutagenesis protocol
Zheng, Lei, Baumann, Ulrich, Reymond, Jean-Louis
We have developed a new primer design method based on the QuickChange™ site-directed mutagenesis protocol, which significantly improves the PCR amplification efficiency. This design method...
The mechanism of ammonia transport based on the crystal structure of AmtB of Escherichia coli
Zheng, Lei, Kostrewa, Dirk, Bernèche, Simon, Winkler, Fritz K., Li, Xiao-Dan
Ammonium is one of the most important nitrogen sources for bacteria, fungi, and plants, but it is toxic to animals. The ammonium transport proteins (methylamine permeases/ammonium...
BRCA1 mediates ligand-independent transcriptional repression of the estrogen receptor
Zheng, Lei, Annab, Lois A., Afshari, Cynthia A., Lee, Wen-Hwa, Boyer, Thomas G.
Mutational inactivation of BRCA1 confers a cumulative lifetime risk of breast and ovarian cancers. However, the underlying basis for the tissue-restricted tumor-suppressive properties of BRCA1...
Zheng, Lei, Chen, Yumay, Lee, Wen-Hwa
hsHec1p, a Homo sapiens coiled-coil-enriched protein, plays an important role in M-phase progression in mammalian cells. A Saccharomyces cerevisiae protein, identical to Tid3p/Ndc80p and here...
Retinoblastoma Protein Enhances the Fidelity of Chromosome Segregation Mediated by hsHec1p
Zheng, Lei, Chen, Yumay, Riley, Daniel J., Chen, Phang-Lang, Lee, Wen-Hwa
Retinoblastoma protein (Rb) plays important roles in cell cycle progression and cellular differentiation. It may also participate in M phase events, although heretofore only circumstantial evidence...
Ezzat, Shereen, Zheng, Lei, Zhu, Xian-Feng, Wu, Gillian E., Asa, Sylvia L.
It is estimated that up to one in five individuals develop pituitary gland tumors. Despite the common occurrence of these tumors, the pathogenetic mechanisms underlying their development remain...
Molecular mechanism of enantioselective proton transfer to carbon in catalytic antibody 14D9
Zheng, Lei, Baumann, Ulrich, Reymond, Jean-Louis
Catalytic antibody 14D9 catalyzes the enantioselective protonation of prochiral enol ethers with high enantioselectivity (>99% ee) and a practical turnover (kcat = 0.4 s-1), allowing for preparative...
An efficient one-step site-directed and site-saturation mutagenesis protocol
Zheng, Lei, Baumann, Ulrich, Reymond, Jean-Louis
We have developed a new primer design method based on the QuickChange™ site-directed mutagenesis protocol, which significantly improves the PCR amplification efficiency. This design method...
The mechanism of ammonia transport based on the crystal structure of AmtB of Escherichia coli
Zheng, Lei, Kostrewa, Dirk, Bernèche, Simon, Winkler, Fritz K., Li, Xiao-Dan
Ammonium is one of the most important nitrogen sources for bacteria, fungi, and plants, but it is toxic to animals. The ammonium transport proteins (methylamine permeases/ammonium...
Molecular epidemiology of measles viruses in China, 1995–2003
Zhang, Yan, Zhu, Zhen, Rota, Paul A, Jiang, Xiaohong, Hu, Jiayu, Wang, Jianguo, ...
This report describes the genetic characterization of 297 wild-type measles viruses that were isolated in 24 provinces of China between 1995 and 2003. Phylogenetic analysis of the N gene sequences...
Feedback Network Controls Photoreceptor Output at the Layer of First Visual Synapses in Drosophila
Zheng, Lei, De Polavieja, Gonzalo G., Wolfram, Verena, Asyali, Musa H., Hardie, Roger C., Juusola, Mikko
At the layer of first visual synapses, information from photoreceptors is processed and transmitted towards the brain. In fly compound eye, output from photoreceptors (R1–R6) that share the same...
Genetic characterization of Measles Viruses in China, 2004
Zhang, Yan, Ji, Yixin, Jiang, Xiaohong, Xu, Songtao, Zhu, Zhen, Zheng, Lei, ...
Genetic characterization of wild-type measles virus was studied using nucleotide sequencing of the C-terminal region of the N protein gene and phylogenetic analysis on 59 isolates from 16 provinces...
Nikolaev, Anton, Zheng, Lei, Wardill, Trevor J., O'Kane, Cahir J., De Polavieja, Gonzalo G., Juusola, Mikko
Retinal networks must adapt constantly to best present the ever changing visual world to the brain. Here we test the hypothesis that adaptation is a result of different mechanisms at several synaptic...
Zheng, Lei, Nikolaev, Anton, Wardill, Trevor J., O'Kane, Cahir J., De Polavieja, Gonzalo G., Juusola, Mikko
Because of the limited processing capacity of eyes, retinal networks must adapt constantly to best present the ever changing visual world to the brain. However, we still know little about how...