Dong Zhang

Carbon Fibers from Oriented Polyethylene Precursors. (9999)

Zhang, Dong

In this research, an effort is made to produce carbon fibers from a highly ordered and oriented polyethylene fiber. Sulfonation of the fiber is studied as a method of stabilizing this thermoplastic...

Antennal Sensilla in the Genus Lysmata (Caridea) (2008)

Dong Zhang, Shengli Cai, Hong Liu, Junda Lin

Our previous studies have found that euhermaphrodite-phase shrimp of Lysmata secrete both distance and contact sex pheromones, unique among the shrimp. To gain a better understanding of the...

Self-similar structure of magnetized ADAFs and CDAFs (2008)

Zhang, Dong, Dai, Z. G.

(Abridged) We study the effects of a global magnetic field on viscously-rotating and vertically-integrated accretion disks around compact objects using a self-similar treatment. We extend Akizuki &...

-Mesotrichosiphum Calilung (Hemiptera: Aphididae: Greenideinae), A Newly Recorded Genus From China, With The Description Of A New Species (2008)

Dong Zhang, Gexia Qiao

The genus Mesotrichosiphum Calilung, an endemic southeastern Asian group, is reviewed to include Mesotrichosiphum pentaiarticulatum Zhang and Qiao, sp. nov. from China (Hainan). The generic diagnosis...

Zn2(TeO3)Br2 (2008)

Dong Zhang, Mats Johnsson

Single crystals of dizinc tellurium dibromide trioxide, Zn2(TeO3)Br2, were synthesized via a transport reaction in sealed evacuated silica tubes. The compound has a layered crystal structure in which...

Hyperaccretion Disks around Neutron Stars (2007)

Zhang, Dong, Dai, Z. G.

(Abridged) We here study the structure of a hyperaccretion disk around a neutron star. We consider a steady-state hyperaccretion disk around a neutron star, and as a reasonable approximation, divide...

A function blocking anti-mouse integrin α5β1 antibody inhibits angiogenesis and impedes tumor growth in vivo (2007)

Bhaskar, Vinay, Zhang, Dong, Fox, Melvin, Seto, Pui, Wong, Melanie HL, Wales, Pauline E, ...

Abstract Background Integrins are important adhesion molecules that regulate tumor and endothelial cell survival, proliferation and migration. The integrin α5β1 has been shown to play a critical...

Chondroitin Sulfate Proteoglycan 2 (CSPG2) Gene Polymorphisms rs173686 and rs251124 are not Associated with Intracranial Aneurysms in Chinese Han Nationality (2007)

Sun, Hui, Zhang, Dong, Zhao, Jizong

Background. There is evidence suggesting that genetic variants in the chondroitin sulfate proteoglycan2 (CSPG2, also known as versican) gene are involved in the pathogenesis of intracranial aneurysms...

An association of a simultaneous nuclear and cytoplasmic localization of Fra-1 with breast malignancy (2006)

Song, Yuhua, Song, Santai, Zhang, Dong, Zhang, Yan, Chen, Liyong, Qian, Lu, ...

Abstract Background Overexpression of Fra-1 in fibroblasts causes anchorage-independent cell growth and oncogenic transformation. A high level of Fra-1 expression is found in various tumors and...

Probabilistic graphical models for human interaction analysis (2006)

Zhang, Dong

The objective of this thesis is to develop probabilistic graphical models for analyzing human interaction in meetings based on multimodel cues. We use meeting as a study case of human interactions...

Probabilistic graphical models for human interaction analysis (2006)

Zhang, Dong

The objective of this thesis is to develop probabilistic graphical models for analyzing human interaction in meetings based on multimodel cues. We use meeting as a study case of human interactions...

Real-Time Face Detection Using Boosting Learning in Hierarchical Feature Spaces (2006)

Zhang, Dong, Li, S. Z., Gatica-Perez, Daniel

Boosting-based methods have recently led to the state-of-the-art face detection systems. In these systems, weak classifiers to be boosted are based on simple, local, Haar-like features. However, it...

Modeling Individual and Group Actions in Meetings: a Two-Layer HMM Framework (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns, are inherently group-based...

Multimodal Group Action Clustering in Meetings (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of clustering multimodal group actions in meetings using a two-layer HMM framework. Meetings are structured as sequences of group actions. Our approach aims at creating one...

Learning influence among interacting Markov chains (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, Roy, Deb

We present a model that learns the influence of interacting Markov chains within a team. The proposed model is a dynamic Bayesian network (DBN) with a two-level structure: individual-level and...

Extracting Information from Multimedia Meeting Collections (2006)

Gatica-Perez, Daniel, Zhang, Dong, Bengio, Samy

Multimedia meeting collections, composed of unedited audio and video streams, handwritten notes, slides, and electronic documents that jointly constitute a raw record of complex human interaction...

Semi-supervised Adapted HMMs for Unusual Event Detection (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain

We address the problem of temporal unusual event detection. Unusual events are characterized by a number of features (rarity, unexpectedness, and relevance) that limit the application of traditional...

Multimodal Integration for Meeting Group Action Segmentation and Recognition (2006)

Al-Hames, Marc, Dielmann, Alfred, Gatica-Perez, Daniel, Reiter, Stephan, Renals, Steve, Zhang, Dong

We address the problem of segmentation and recognition of sequences of multimodal human interactions in meetings. These interactions can be seen as a rough structure of a meeting, and can be used...

Semi-supervised Meeting Event Recognition with Adapted HMMs (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy

This paper investigates the use of unlabeled data to help labeled data for audio-visual event recognition in meetings. To deal with situations in which it is difficult to collect enough labeled data...

Real-Time Face Detection Using Boosting Learning in Hierarchical Feature Spaces (2006)

Zhang, Dong, Li, S. Z., Gatica-Perez, Daniel

Boosting-based methods have recently led to the state-of-the-art face detection systems. In these systems, weak classifiers to be boosted are based on simple, local, Haar-like features. However, it...

Semi-supervised Adapted HMMs for Unusual Event Detection (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy

We address the problem of temporal unusual event detection. Unusual events are characterized by a number of features (rarity, unexpectedness, and relevance) that limit the application of traditional...

Modeling Individual and Group Actions in Meetings: a Two-Layer HMM Framework (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns, are inherently group-based...

Multimodal Group Action Clustering in Meetings (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of clustering multimodal group actions in meetings using a two-layer HMM framework. Meetings are structured as sequences of group actions. Our approach aims at creating one...

Modeling Individual and Group Actions in Meetings With Layered HMMs (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns are inherently group-based...

Learning influence among interacting Markov chains (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, Roy, Deb

We present a model that learns the influence of interacting Markov chains within a team. The proposed model is a dynamic Bayesian network (DBN) with a two-level structure: individual-level and...

Extracting Information from Multimedia Meeting Collections (2006)

Gatica-Perez, Daniel, Zhang, Dong, Bengio, Samy

Multimedia meeting collections, composed of unedited audio and video streams, handwritten notes, slides, and electronic documents that jointly constitute a raw record of complex human interaction...

Modeling Interactions from Email Communication (2006)

Zhang, Dong, Gatica-Perez, Daniel, Roy, Deb, Bengio, Samy

Email plays an important role as a medium for the spread of information, ideas, and influence among its users. We present a framework to learn topic-based interactions between pairs of email users,...

Multimodal Integration for Meeting Group Action Segmentation and Recognition (2006)

Al-Hames, Marc, Dielmann, Alfred, Gatica-Perez, Daniel, Reiter, Stephan, Renals, Steve, Zhang, Dong

We address the problem of segmentation and recognition of sequences of multimodal human interactions in meetings. These interactions can be seen as a rough structure of a meeting, and can be used...

Semi-supervised Meeting Event Recognition with Adapted HMMs (2006)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy

This paper investigates the use of unlabeled data to help labeled data for audio-visual event recognition in meetings. To deal with situations in which it is difficult to collect enough labeled data...

A genomewide search finds major susceptibility loci for nicotine dependence on chromosome 10 in African Americans. (2006)

Li, Ming D., Payne, Thomas J., Ma, Jennie Z., Lou, Xiang-Yang, Zhang, Dong, Dupont, Randolph T., ...

Epidemiological studies have demonstrated that genetic factors account for at least 50% of the liability for nicotine dependence (ND). Although several linkage studies have been conducted, all...

Reduced Expression of MAD2, BCL2, and MAP Kinase Activity in Pig Oocytes after In Vitro Aging Are Associated with Defects in Sister Chromatid Segregation During Meiosis II and Embryo Fragmentation After Activation1 (2005)

Wei Ma, Dong Zhang, Yi Hou, Yong-Hai Li, Qing-Yuan Sun, Xiao-Fang Sun, ...

This study was conducted to examine expression of centromere protein B (CENPB), spindle checkpoint protein MAD2 (mitotic arrest deficient protein), and antiapoptotic protein BCL2; activities of MAPK...

Localization of Mitotic Arrest Deficient 1 (MAD1) in Mouse Oocytes During the First Meiosis and Its Functions as a Spindle Checkpoint Protein1 (2005)

Dong Zhang, Ming Li, Wei Ma, Yi Hou, Yong-Hai Li, Shi-Wen Li, ...

The present study was designed to investigate the localization of mitotic arrest deficient 1 (MAD1) in mouse oocytes during meiotic maturation and its relationship with kinetochores, chromosomes, and...

Detecting Interest-Level in Meetings (2005)

Gatica-Perez, Daniel, McCowan, Iain, Zhang, Dong, Bengio, Samy

Finding relevant segments in meeting recordings is important for summarization, browsing, and retrieval purposes. In this paper, we define relevance as the interest-level that meeting participants...

Automatic Analysis of Multimodal Group Actions in Meetings (2005)

McCowan, Iain, Gatica-Perez, Daniel, Bengio, Samy, Lathoud, Guillaume, Barnard, Mark, Zhang, Dong

This paper investigates the recognition of group actions in meetings. A statistical framework is proposed in which group actions result from the interactions of the individual participants. The group...

Semi-Supervised Adapted HMMs for Unusual Event Detection (2005)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain

We address the problem of temporal unusual event detection. Unusual events are characterized by a number of features (rarity, unexpectedness, and relevance) that limit the application of traditional...

Semi-Supervised Meeting Event Recognition with Adapted HMMs (2005)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain

This paper investigates the use of unlabeled data to help labeled data for audio-visual event recognition in meetings. To deal with situations in which it is difficult to collect enough labeled data...

Learning Influence Among Interacting Markov Chains (2005)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, Roy, Deb

We present a model that learns the influence of interacting Markov chains within a team. The proposed model is a dynamic Bayesian network (DBN) with a two-level structure: individual-level and...

Extracting Information from Multimedia Meeting Collections (2005)

Gatica-Perez, Daniel, Zhang, Dong, Bengio, Samy

Multimedia meeting collections, composed of unedited audio and video streams, handwritten notes, slides, and electronic documents that jointly constitute a raw record of complex human interaction...

Ethical Use of IT in Organizations (2004)

Zhang, Dong

Misuse of Information Technology (IT) resources at workplace for non-work related purposes can increase the financial expenditure of organization. It may also results in security and legal...

Automatic Analysis of Multimodal Group Actions in Meetings (2004)

Iain Mccowan, Daniel Gatica-perez, Samy Bengio, Guillaume Lathoud, Ieee Mark Barnard, Student Member, ...

This paper investigates the recognition of group actions in meetings. A framework is employed in which group actions result from the interactions of the individual participants. The group actions are...

Unknown (2004)

Daniel Gatica-perez, Iain Mccowan, Dong Zhang, Samy Bengio

Finding relevant segments in meeting recordings is important for summarization, browsing, and retrieval purposes. In this paper, we define relevance as the interest-level that meeting participants...

Intra-oocyte Localization of MAD2 and Its Relationship with Kinetochores, Microtubules, and Chromosomes in Rat Oocytes During Meiosis1 (2004)

Dong Zhang, Wei Ma, Yong-Hai Li, Yi Hou, Shi-Wen Li, Xiao-Qian Meng, ...

The present study was designed to investigate subcellular localization of MAD2 in rat oocytes during meiotic maturation and its relationship with kinetochores, chromosomes, and microtubules. Oocytes...

Multimodal Group Action Clustering in Meetings (2004)

Dong Zhang, Daniel Gatica-perez, Samy Bengio, Iain Mccowan, Guillaume Lathoud

We address the problem of clustering multimodal group actions in meetings using a two-layer HMM framework. Meetings are structured as sequences of group actions. Our approach aims at creating one...

FERTILIZATION SUCCESS WITHOUT ANTERIOR PLEOPODS IN LYSMATA WURDEMANNI (DECAPODA: CARIDEA), A PROTANDRIC SIMULTANEOUS HERMAPHRODITE (2004)

Dong Zhang, Junda Lin

The modifications of the first two pleopods in male shrimp have long been considered to serve in insemination of the female. The role of pleopods 1 and 2 in mating in a protandric simultaneous...

Unknown (2004)

Dong Zhang, Daniel Gatica-perez, Samy Bengio, Iain Mccowan, Guillaume Lathoud

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns are inherently group-based...

Modeling Individual and Group Actions in Meetings: (2004)

Dong Zhang, Daniel Gatica-perez, Samy Bengio, Iain Mccowan, Guillaume Lathoud

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns are inherently group-based...

Modeling Individual and Group Action in Meetings: a Two-layer HMM Framework (2004)

Zhang, Dong, Gatica-Perez, Daniel, Bengio, Samy, McCowan, Iain, Lathoud, Guillaume

We address the problem of recognizing sequences of human interaction patterns in meetings, with the goal of structuring them in semantic terms. The investigated patterns are inherently group-based...

Real-Time Face Detection Using Boosting in Hierarchical Feature Spaces (2004)

Dong Zhang, S. Z. Li, Daniel Gatica-perez

Boosting-based methods have recently led to the state-ofthe -art face detection systems. In these systems, weak classifiers to be boosted are based on simple, local, Haar-like features. However, it...

Mapping susceptibility loci for alcohol consumption using number of grams of alcohol consumed per day as a phenotype measure (2003)

Ma, Jennie Z, Zhang, Dong, Dupont, Randolph T, Dockter, Michael, Elston, Robert C, Li, Ming D

Abstract Background There is substantial evidence for a significant genetic component to the risk for alcoholism. However, susceptibility loci or genes for alcohol dependence remain largely unknown....

Learning to Boost GMM Based Speaker Verification (2003)

Stan Z. Li, Dong Zhang, Chengyuan Ma, Heung-yeung Shum, Eric Chang

The Gaussian mixture models (GMM) has proved to be an effective probabilistic model for speaker verification, and has been widely used in most of state-of-the-art systems. In this paper, we introduce...

Learning to Boost GMM Based Speaker Verification (2003)

Stan Z. Li, Dong Zhang, Chengyuan Ma, Heung-yeung Shum, Eric Chang

The Gaussian mixture models (GMM) has proved to be an effective probabilistic model for speaker verification, and has been widely used in most of state-of-the-art systems. In this paper, we introduce...

Mapping susceptibility loci for alcohol consumption using number of grams of alcohol consumed per day as a phenotype measure. (2003)

Ma, Jennie Z, Zhang, Dong, Dupont, Randolph T, Dockter, Michael, Elston, Robert C, Li, Ming D

BACKGROUND: There is substantial evidence for a significant genetic component to the risk for alcoholism. However, susceptibility loci or genes for alcohol dependence remain largely unknown. To...

Particle tracking velocimetry applied to an opposed-jet mixer configuration (2002)

Zhang, Dong

Mixing vessels are widely used for blending and chemical reactions. Although much has been done on mixing processes, the complex, three-dimensional flow phenomena are still not well understood. The...

A New Shot Boundary Detection Algorithm (2001)

Dong Zhang, Wei Qi, Hong Jiang Zhang

Shot is often used as basic unit for both analyzing and indexing video. In this paper, we present an algorithm for automatic shot detection. In our algorithm, we use a `flash model' and a `cut model'...

Cavitation Characteristics on Flow with Multi Cavitation Sources (2001)

Li, Yongmei, Zhang, Dong, Wang, Yongsheng, Baoligao, B. Y., Zhongyi, Li

The cavitation characteristics were analyzed in this paper for the flood relief mid-outlets of Baise Multipurpose dam project, on the basis of depressurized model test of 1:50 in a specially designed...

Cavitation Inception Witnessed by Sound Pressure Level both in Model Test and Prototype Observation (2001)

Zhang, Dong, Liu, Zhiping, Jin, Tailai

The paper concerns with the relationship between cavitation inception d1 and sound pressure level (SPL). A case study of Xiaolangdi Hydro-project has been taken as a typical example, which...

Branching ratios and CP-violating asymmetries of $B_s \to h_1 h_2 $ decays in the general two-Higgs doublet models (2000)

Zhang, Dong, Xiao, Zhenjun, Li, Chong Sheng

Based on the low-energy effective Hamiltonian with the generalized factorization, we calculate the new physics contributions to branching ratios and CP-violating asymmetries of the charmless hadronic...

Carbon Fibers from Polyethylene-Based Precursors. (1998)

Zhang, Dong, Bhat, Gajanan S.

This paper concerned mmc in some important way and contained information about, utilized, or discussed these subjects: basic topics:, composite materials materials and material types:, c fiber...

Influence of Processing Variables on the Structure and Properties of Polyethylene-Based Carbon Fibers. (1998)

Bhat, Gajanan S., Zhang, Dong

Carbon fibers are manufactured from one of the three major precursors, i.e., polyacrylonitrile, pitch or rayon. in our earlier research, it was shown that carbon fibers with good yield can be...

Granzymes A and B directly cleave lamins and disrupt the nuclear lamina during granule-mediated cytolysis

Zhang, Dong, Beresford, Paul J., Greenberg, Arnold H., Lieberman, Judy

Cytotoxic T lymphocytes (CTL) induce apoptosis by engaging death receptors or by exocytosis of cytolytic granules containing granzyme (Gzm) proteases and perforin. The lamins, which maintain the...

The Retinoblastoma Protein Alters the Phosphorylation State of Polyomavirus Large T Antigen in Murine Cell Extracts and Inhibits Polyomavirus Origin DNA Replication

Reynisdóttir, Inga, Bhattacharyya, Subarna, Zhang, Dong, Prives, Carol

The retinoblastoma tumor suppressor protein (pRb) can associate with the transforming proteins of several DNA tumor viruses, including the large T antigen encoded by polyomavirus (Py T Ag). Although...

HMG2 Interacts with the Nucleosome Assembly Protein SET and Is a Target of the Cytotoxic T-Lymphocyte Protease Granzyme A

Fan, Zusen, Beresford, Paul J., Zhang, Dong, Lieberman, Judy

The cytotoxic T-lymphocyte protease granzyme A induces caspase-independent cell death in which DNA single-stranded nicking is observed instead of oligonucleosomal fragmentation. A 270- to 420-kDa...

A fragment of anthrax lethal factor delivers proteins to the cytosol without requiring protective antigen

Kushner, Nicholas, Zhang, Dong, Touzjian, Neal, Essex, Max, Lieberman, Judy, Lu, Yichen

Anthrax protective antigen (PA) is a 735-aa polypeptide that facilitates the exit of anthrax lethal factor (LF) from the endosome to the cytosol where the toxin acts. We recently found, however, that...

Sustained Small Interfering RNA-Mediated Human Immunodeficiency Virus Type 1 Inhibition in Primary Macrophages

Song, Erwei, Lee, Sang-Kyung, Dykxhoorn, Derek M., Novina, Carl, Zhang, Dong, Crawford, Keith, ...

Small interfering RNAs (siRNAs) can induce potent gene silencing by degradation of cognate mRNA. However, in dividing cells, the silencing lasts only 3 to 7 days, presumably because of siRNA dilution...