Hui Cao

Effects of Spatially Nonuniform Gain on Lasing Modes in Weakly Scattering Random Systems (2009)

Andreasen, Jonathan, Vanneste, Christian, Ge, Li, Cao, Hui

A study on the effects of optical gain nonuniformly distributed in one-dimensional random systems is presented. It is demonstrated numerically that even without gain saturation and mode competition,...

Creation of New Lasing Modes with Spatially Nonuniform Gain (2009)

Andreasen, Jonathan, Cao, Hui

We report on the creation of new lasing modes with spatially nonuniform distributions of optical gain in a one-dimensional random structure. It is demonstrated numerically that even without gain...

Five-Fold Reduction of Lasing Threshold near the First $\Gamma L$-Pseudogap of ZnO Inverse Opals (2009)

Scharrer, Michael, Noh, Heeso, Wu, Xiaohua, Anderson, Mark A, Yamilov, Alexey, Cao, Hui, ...

We report room temperature lasing in ZnO inverse opal photonic crystals in the near-ultraviolet (UV) frequency. We observe random lasing due to disorder in the structures when the photonic pseudogaps...

Marginally Unstable Periodic Orbits in Semiclassical Mushroom Billiards (2009)

Andreasen, Jonathan, Cao, Hui, Wiersig, Jan, Motter, Adilson E.

Optical mushroom shaped billiards offer a unique opportunity to isolate and study non-dispersive, marginally unstable periodic orbits. Here we show that the openness of the cavity to external fields...

Finite-difference time-domain formulation of stochastic noise in macroscopic atomic systems (2009)

Andreasen, Jonathan, Cao, Hui

A numerical model based on the finite-difference time-domain method is developed to simulate fluctuations which accompany the dephasing of atomic polarization and the decay of excited state's...

Trunk and Trail: Wireless Sensor Network Services For Distributed Object Tracking (2008)

Vinodkrishnan Kulathumani, Mukundan Sridharan, Murat Demirbas, Hui Cao, Emre Ertin, Anish Arora

In-network observation and control of mobile objects via static wireless sensors demands consistent, timely information. In this paper, we present two wireless network (WSN) services that support...

ABSTRACT Kansei: A Testbed for Sensing at Scale (2008)

Emre Ertin, Anish Arora, Rajiv Ramnath, Mikhail Nesterenko, Vinayak Naik, Ip Bapat, ...

to facilitate research on networked sensing applications at scale. Kansei embodies a unique combination of characteristics as a result of its design focus on sensing and scaling: (i) Heterogeneous...

Stabilization in Dynamic Systems with Varying Equilibrium (2008)

Hui Cao, Anish Arora

Abstract. System design often explores optimality of performance. What is optimal is, however, often not predefined or static in most cases, because it is affected by the context of operation, such...

Evaluation of New Selective Molecularly Imprinted Polymers for the Extraction of Resveratrol from Polygonum Cuspidatum (2008)

Cao, Hui, Xiao, Jian Bo, Xu, Ming

Four different molecularly imprinted polymers (MIPs) were prepared using resveratrol as the template, methacrylic acid (MAA) or acrylamide (AA) as functional monomers, 2,2-azobisisobutyronitrile...

Rapid and Sensitive Determination of Trace Chloride Ion in Drinks Using Resonance Light Scattering Technique (2008)

Hui Cao, Dong Hui Wu

A resonance light scattering (RLS) technique to determine chloride ions in drinks was developed. Chloride ions were found to bind Ag+ forming AgCl aggregates that produced intense resonance...

Stabilization in wireless sensor networks (2008)

Cao, Hui

Wireless sensor networks (WSNs) are deployed to cooperatively monitor environmental conditions, where sensor nodes may be subjected to harsh terrains, severe weather, and even physical damage. All of...

Approximate RBF Kernel SVM and Its Applications in Pedestrian Classification (2008)

Cao, Hui, Naito, Takashi, Ninomiya, Yoshiki

This paper presents an efficient approximation to the nonlinear SVM with Radial Basis Function (RBF) kernel. By employing second-order polynomial approximation to RBF kernel, the derived approximate...

Approximate RBF Kernel SVM and Its Applications in Pedestrian Classification (2008)

Cao, Hui, Naito, Takashi, Ninomiya, Yoshiki

This paper presents an efficient approximation to the nonlinear SVM with Radial Basis Function (RBF) kernel. By employing second-order polynomial approximation to RBF kernel, the derived approximate...

Toxicology Profiles of a Novel p53-Armed Replication-Competent Oncolytic Adenovirus in Rodents, Felids, and Nonhuman Primates (2008)

Su, Changqing, Cao, Hui, Tan, Shuping, Huang, Yao, Jia, Xiaoyuan, Jiang, Lixin, ...

Conditionally replicating adenovirus (CRAd) has demonstrated to be safe in clinical studies. We generated a triple-regulated p53-armed CRAd, SG600-p53, in which the partially deleted E1a and E1b...

Rapid and Sensitive Determination of Trace Chloride Ion in Drinks Using Resonance Light Scattering Technique (2008)

Hui Cao, Dong Hui Wu

A resonance light scattering (RLS) technique to determine chloride ions in drinks was developed. Chloride ions were found to bind Ag+ forming AgCl aggregates that produced intense resonance...

Statistical studies of random lasing modes and amplified spontaneous emission spikes in weakly scattering systems (2007)

Wu, Xiaohua, Cao, Hui

We measured the ensemble-averaged spectral correlation functions and statistical distributions of spectral spacing and intensity for lasing modes in weakly scattering systems, and compared them to...

FDTD Simulation of Thermal Noise in Open Cavities (2007)

Andreasen, Jonathan, Cao, Hui, Taflove, Allen, Kumar, Prem, Cao, Chang-qi

A numerical model based on the finite-difference time-domain (FDTD) method is developed to simulate thermal noise in open cavities owing to output coupling. The absorbing boundary of the FDTD grid is...

Photoluminescence modification by high-order photonic band with abnormal dispersion in ZnO inverse opal (2007)

Noh, Heeso, Scharrer, Michael, Anderson, Mark A., Chang, Robert P. H., Cao, Hui

We measured the angle- and polarization-resolved reflection and photoluminescence spectra of ZnO inverse opals. Significant enhancement of spontaneous emission is observed. The enhanced emission not...

Gauss-Newton Particle Filter (2007)

CAO, Hui, OHNISHI, Noboru, TAKEUCHI, Yoshinori, MATSUMOTO, Tetsuya, KUDO, Hiroaki

The extened Kalman filter (EKF) and unscented Kalman filter (UKF) have been successively applied in particle filter framework to generate proposal distributions, and shown significantly improving...

Example-Based Methods for Estimating 3D Human Pose from Silhouette Image using Approximate Chamfer Distance and Kernel Subspace (2007)

Cao, Hui, 曹, 晖

名古屋大学博士学位論文 学位の種類:博士(情報科学)(課程) 学位授与年月日:平成19年3月27日

Example-Based Methods for Estimating 3D Human Pose from Silhouette Image using Approximate Chamfer Distance and Kernel Subspace (2007)

Cao, Hui, 曹, 晖

名古屋大学博士学位論文 学位の種類:博士(情報科学)(課程) 学位授与年月日:平成19年3月27日

FAST HUMAN POSE RETRIEVAL USING APPROXIMATE CHAMFER DISTANCE (2006)

Cao, Hui, Ohnishi, Noboru, Takeuchi, Yoshinori, Matsumoto, Tetsuya, Kudo, Hiroaki

The estimation of 3D human pose from a single image can be implemented in the way of large-scale image retrieval. For a given input image, a few similar images are retrieved from the database...

Effect of amplification on conductance distribution of a disordered waveguide (2006)

Yamilov, Alexey, Cao, Hui

Introduction of optical gain to a disordered system results in enhanced fluctuations [$F_{(2)}=var(\tilde{g})/< \tilde{g} >^2$] of dimensionless conductance $\tilde{g}$, similar to the effect of...

Theoretical Study on Rotational Bands and Shape Coexistence of $^{183,185,187}${Tl} in the Particle Triaxial-Rotor Model (2006)

Chen, Guo-Jie, Liu, Yu-xin, Song, Hui-chao, Cao, Hui

By taking the particle triaxial-rotor model with variable moment of inertia, we investigate the energy spectra, the deformations and the single particle configurations of the nuclei...

Abstracting patient features from narrative medical records using a semantic, knowledge-based approach (2006)

Cao, Hui

The rapid growth of medical information can result in information overload, which is a common problem for physicians who are always confronted with a large amount of clinical data. Because they...

Differential games in large-scale sensor-actuator networks (2006)

Hui Cao, Emre Ertin, Vinodkrishnan Kulathumani, Mukundan Sridharan, Anish Arora

Surveillance systems based on sensor network technology have been shown to successfully detect, classify and track targets of interest over a large area. State information collected via the sensor...

Differential games in large-scale sensor-actuator networks (2006)

Hui Cao, Emre Ertin, Vinodkrishnan Kulathumani, Mukundan Sridharan, Anish Arora

Abstract — Surveillance systems based on sensor network technology have been shown to successfully detect, classify and track targets of interest over a large area. State information collected via...

Kansei: A Testbed for Sensing at Scale (2006)

Emre Ertin, Anish Arora, Rajiv Ramnath, Mikhail Nesterenko, Vinayak Naik, Ip Bapat, ...

to facilitate research on networked sensing applications at scale. Kansei embodies a unique combination of characteristics as a result of its design focus on sensing and scaling: (i) Heterogeneous...

O-MAC: a receiver centric power management protocol (2006)

Hui Cao

Abstract — Energy efficiency is widely understood to be one of the dominant considerations for Wireless Sensor Networks. Based on historical data and technology trends, the receiver energy...

Recovering Human Pose by Collaborative Generative Models Estimation (2005)

Cao, Hui, Takeuchi, Yoshinori, Matsumoto, Tetsuya, Kudo, Hiroaki, Ohnishi, Noboru

Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.83

Smoothed Particle Filter (2005)

Cao, Hui

Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.111

Design of a Web-based Decision Support System for End-of-Life Vehicles (2005)

Hui Cao

Decision Support Systems (DSS) have been involved in all of the stages of the products life-cycle. In the business of end-of-life vehicles (ELVs) treatment, once PEID (Product Embedded Information...

ExScal: Elements of an Extreme Scale Wireless Sensor Network (2005)

Anish Arora, Rajiv Ramnath, Emre Ertin, Prasun Sinha, Sandip Bapat, Vinayak Naik, ...

Project ExScal (for Extreme Scale) fielded a 1000+ node wireless sensor network and a 200+ node peer-to-peer ad hoc network of 802.11 devices in a 1.3km by 300m remote area in Florida, USA during...

Effects of localization and amplification on distribution of intensity transmitted through random media (2004)

Yamilov, Alexey, Cao, Hui

We numerically study the statistical distribution of intensity transmitted through quasi-one dimensional random media by varying the dimensionless conductance $g$ and the amount of absorption or...

Comparing gene discovery from Affymetrix GeneChip microarrays and Clontech PCR-select cDNA subtraction: a case study (2004)

Cao, Wuxiong, Epstein, Charles, Liu, Hong, DeLoughery, Craig, Ge, Nanxiang, Lin, Jieyi, ...

Abstract Background Several high throughput technologies have been employed to identify differentially regulated genes that may be molecular targets for drug discovery. Here we compared the sets of...

Field and intensity correlations in amplifying random media (2004)

Yamilov, Alexey, Chang, Shih-Hui, Burin, Aleksander, Taflove, Allen, Cao, Hui

We study local and nonlocal correlations of light transmitted through active random media. The conventional approach results in divergence of ensemble averaged correlation functions due to existence...

Numerical study of light correlations in a random medium close to Anderson localization threshold (2004)

Chang, Shih-Hui, Taflove, Allen, Yamilov, Alexey, Burin, Aleksander, Cao, Hui

We applied finite difference time domain (FDTD) algorithm to the study of field and intensity correlations in random media. Close to the onset of Anderson localization, we observe deviations of the...

BMC Genomics BioMed Central Methodology article Comparing gene discovery from Affymetrix GeneChip microarrays (2004)

Wuxiong Cao, Charles Epstein, Hong Liu, Craig Deloughery, Nanxiang Ge, Jieyi Lin, ...

© 2004 Cao et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is...

Statistics of transmission in one-dimensional disordered systems: universal characteristics of states in the fluctuation tails (2003)

Deych, L. I., Erementchouk, M. V., Lisyansky, A. A., Yamilov, Alexey, Cao, Hui

We numerically study the distribution function of the conductance (transmission) in the one-dimensional tight-binding Anderson and periodic-on-average superlattice models in the region of fluctuation...

The distribution of calcium oxalate crystals in genus Dieffenbachia schott. and the relationship between environmental factors and crystal quantity and quality [electronic resource] / (2003)

Cao, Hui.

ABSTRACT: A popular ornamental foliage plant in commercial nurseries, Dieffenbachia, is also famous for its irritative nature that is caused by the combination of calcium oxalate (CaOx) crystals and...

A study of random laser modes in disordered photonic crystals (2002)

Yamilov, Alexey, Cao, Hui

We studied lasing modes in a disordered photonic crystal. The scaling of the lasing threshold with the system size depends on the strength of disorder. For sufficiently large size, the minimum of the...

Manifestation of photonic band structure in small clusters of spherical particles (2002)

Yamilov, Alexey, Cao, Hui

We study the formation of the photonic band structure in small clusters of dielectric spheres. The first signs of the band structure, an attribute of an infinite crystal, can appear for clusters of 5...

The exact solution for the superfluorescence of low density Frenkel excitons in double and triple lattice-layers (1999)

Cao, Chang-qi, Yu-Xi, Liu, Cao, Hui

In low density regime, the fluorescence of Frenkel exitons in crystal slab can be studied without the aid of rotating wave and Mackoffian approximation. The equations for the case of double and...

Heterogeneous photocatalysis and migration of vanadium between zeolite and matrix components in fluid catalytic cracking (FCC) catalysts (1993)

Cao, Hui

The experiments presented here explore the nature of photocatalysis via a model reaction of the photocatalytic oxidation of isopropanol to acetone by two groups of newly developed catalysts, uranyl...

Plants and animals share functionally common bacterial virulence factors

Rahme, Laurence G., Ausubel, Frederick M., Cao, Hui, Drenkard, Eliana, Goumnerov, Boyan C., Lau, Gee W., ...

By exploiting the ability of Pseudomonas aeruginosa to infect a variety of vertebrate and nonvertebrate hosts, we have developed model systems that use plants and nematodes as adjuncts to mammalian...

Generation of broad-spectrum disease resistance by overexpression of an essential regulatory gene in systemic acquired resistance

Cao, Hui, Li, Xin, Dong, Xinnian

The recently cloned NPR1 gene of Arabidopsis thaliana is a key regulator of acquired resistance responses. Upon induction, NPR1 expression is elevated and the NPR1 protein is activated, in turn...

A quorum sensing-associated virulence gene of Pseudomonas aeruginosa encodes a LysR-like transcription regulator with a unique self-regulatory mechanism

Cao, Hui, Krishnan, Gomathi, Goumnerov, Boyan, Tsongalis, John, Tompkins, Ronald, Rahme, Laurence G.

The human opportunistic pathogen Pseudomonas aeruginosa strain PA14 infects both plants and animals. Previously, using plants to screen directly for P. aeruginosa virulence-attenuated mutants, we...

Chaotic microlasers based on dynamical localization

Podolskiy, Viktor A., Narimanov, Evgenii, Fang, Wei, Cao, Hui

We report the direct observation of lasing action from a dynamically localized mode in a microdisk resonator with rough boundary. In contrast to microlasers based on stable ray trajectories, the...

Plants and animals share functionally common bacterial virulence factors

Rahme, Laurence G., Ausubel, Frederick M., Cao, Hui, Drenkard, Eliana, Goumnerov, Boyan C., Lau, Gee W., ...

By exploiting the ability of Pseudomonas aeruginosa to infect a variety of vertebrate and nonvertebrate hosts, we have developed model systems that use plants and nematodes as adjuncts to mammalian...

Generation of broad-spectrum disease resistance by overexpression of an essential regulatory gene in systemic acquired resistance

Cao, Hui, Li, Xin, Dong, Xinnian

The recently cloned NPR1 gene of Arabidopsis thaliana is a key regulator of acquired resistance responses. Upon induction, NPR1 expression is elevated and the NPR1 protein is activated, in turn...

A quorum sensing-associated virulence gene of Pseudomonas aeruginosa encodes a LysR-like transcription regulator with a unique self-regulatory mechanism

Cao, Hui, Krishnan, Gomathi, Goumnerov, Boyan, Tsongalis, John, Tompkins, Ronald, Rahme, Laurence G.

The human opportunistic pathogen Pseudomonas aeruginosa strain PA14 infects both plants and animals. Previously, using plants to screen directly for P. aeruginosa virulence-attenuated mutants, we...

Chaotic microlasers based on dynamical localization

Podolskiy, Viktor A., Narimanov, Evgenii, Fang, Wei, Cao, Hui

We report the direct observation of lasing action from a dynamically localized mode in a microdisk resonator with rough boundary. In contrast to microlasers based on stable ray trajectories, the...

CPOE/EHR-Driven Healthcare Workflow Generation and Scheduling

Han, Minmin, Song, Xiping, DeHaan, Jan, Cao, Hui, Kennedy, Rosemary, Gugerty, Brian

Automated healthcare workflow generation and scheduling is an approach to ensure the use of the evidence-based protocols. Generating efficient and practical workflows is challenging due to the...

Mining a clinical data warehouse to discover disease-finding associations using co-occurrence statistics

Cao, Hui, Markatou, Marianthi, Melton, Genevieve B., Chiang, Michael F., Hripcsak, George

This paper applies co-occurrence statistics to discover disease-finding associations in a clinical data warehouse. We used two methods, χ2 statistics and the proportion confidence interval (PCI)...

Rapid and Sensitive Determination of Trace Chloride Ion in Drinks Using Resonance Light Scattering Technique

Cao, Hui, Wu, Dong Hui

A resonance light scattering (RLS) technique to determine chloride ions in drinks was developed. Chloride ions were found to bind Ag+ forming AgCl aggregates that produced intense resonance...

Stabilization in wireless sensor networks

Cao, Hui

Wireless sensor networks (WSNs) are deployed to cooperatively monitor environmental conditions, where sensor nodes may be subjected to harsh terrains, severe weather, and even physical damage. All of...

Inherent Dynamics of the Acid-Sensing Ion Channel 1 Correlates with the Gating Mechanism

Yang, Huaiyu, Yu, Ye, Li, Wei-Guang, Yu, Fang, Cao, Hui, Xu, Tian-Le, ...

A combination of computational and experimental approaches reveals the dynamics of ASIC1 gating, involving a deformation of the channel that triggers “twist-to-open” motions of the channel pore.