Chao Li

ICRPfinder: a fast pattern design algorithm for coding sequences and its application in finding potential restriction enzyme recognition sites (2009)

Li, Chao, Li, Yuhua, Zhang, Xiangmin, Stafford, Phillip, Dinu, Valentin

Abstract Background Restriction enzymes can produce easily definable segments from DNA sequences by using a variety of cut patterns. There are, however, no software tools that can aid in gene...

Invisibility Cloaks Modeled by Anisotropic Metamaterials Based on Inductor-capacitor Networks (2009)

Liu, Xiao, Li, Chao, Yao, Kan, Meng, Xiankun, Li, Fang

Based on the transformation optics, a novel transmission-line (TL) approach to realize invisibility cloaking using planar anisotropic metamaterials (MTMs) is proposed. The two-dimensional cylindrical...

Hydrogen-isotopic variability in lipids from Santa Barbara Basin sediments (2009)

Li, Chao, Sessions, Alex L., Kinnaman, Franklin S., Valentine, David L.

We conducted an extensive survey of hydrogen-isotopic compositions (D/H ratios) of diverse sedimentary lipids from the Santa Barbara Basin (SBB), offshore southern California. The main goal of this...

3D hybrid computations for streamer discharges and production of run-away electrons (2009)

Li, Chao, Ebert, Ute, Hundsdorfer, Willem

We introduce a 3D hybrid model for streamer discharges that follows the dynamics of single electrons in the region with strong field enhancement at the streamer tip while approximating the many...

Hydrogen isotopic fractionation in lipid biosynthesis by H_2-consuming Desulfobacterium autotrophicum (2009)

Campbell, Brian J., Li, Chao, Sessions, Alex L., Valentine, David L.

We report hydrogen isotopic fractionations between water and fatty acids of the sulfate-reducing bacterium Desulfobacterium autotrophicum. Pure cultures were grown in waters with deuterium (D)...

Spatially hybrid computations for streamer discharges with generic features of pulled fronts: I. Planar fronts (2009)

Li, Chao, Ebert, Ute, Hundsdorfer, Willem

Streamers are the first stage of sparks and lightning; they grow due to a strongly enhanced electric field at their tips; this field is created by a thin curved space charge layer. These multiple...

Quantum state preparation and macroscopic entanglement in gravitational-wave detectors (2009)

Mueller-Ebhardt, Helge, Rehbein, Henning, Li, Chao, Mino, Yasushi, Somiya, Kentaro, Schnabel, Roman, ...

Long-baseline laser-interferometer gravitational-wave detectors are operating at a factor of 10 (in amplitude) above the standard quantum limit (SQL) within a broad frequency band. Such a low...

1,4-Bis(3-pyridylmethyleneaminomethyl)benzene (2009)

Ming-Yang He, Chao Li, Huan Xu, Zhao-Jian Hu, Qun Chen

The title compound, C20H18N4, is a flexible 3,3′-bipyridyl-type ligand with a long spacer group between the two pyridyl functions. The molecule crystallizes around an inversion center, with one...

1,4-Bis(2-pyridylmethyleneaminomethyl)benzene (2009)

Chao Li, Fu-An Sun, Ming-Yang He, Huan Xu, Qun Chen

The asymmetric unit of the centrosymmetric title compound, C20H18N4, contains one half-molecule. The pyridine and benzene rings are oriented at a dihedral angle of 77.21 (7)°.

2,3,5,6-Tetrafluoro-1,4-bis(2-pyridylmethyleneaminomethyl)benzene (2009)

Ming-Yang He, Chao Li, Xu-Jie Yang, Lu-De Lu, Xin Wang

The title compound, C20H14F4N4, is a flexible bis-pyridine-type ligand with an extended fluorinated spacer group between the two pyridyl functions. The centroid of the central aromatic ring is...

Quantum state preparation and macroscopic entanglement in gravitational-wave detectors (2009)

Müller-Ebhardt, Helge, Rehbein, Henning, Li, Chao, Mino, Yasushi, Somiya, Kentaro, Schnabel, Roman, ...

Long-baseline laser-interferometer gravitational-wave detectors are operating at a factor of 10 (in amplitude) above the standard quantum limit (SQL) within a broad frequency band. Such a low...

A Component-based Management Platform for Multi-source Spatial Data (2009)

Wensheng Wang, Chao Li, Zeze Wu, Yibing Luo, Qingtian Zeng, Xiaorong Yang, ...

This study introduces a component-based management platform for multi-source spatial data. The four-layer architecture and the main functions designed for the management platform are addressed in...

Correlation of expression and methylation of imprinted genes with pluripotency of parthenogenetic embryonic stem cells (2009)

Li, Chao, Chen, Zhisheng, Liu, Zhong, Huang, Junjiu, Zhang, Wei, Zhou, Lingjun, ...

Mammalian parthenogenetic embryos (pE) are not viable due to placental deficiency, presumably resulting from lack of paternally expressed imprinted genes. Pluripotent parthenogenetic embryonic stem...

Selective Functionalization of In2O3 Nanowire Mat Devices for Biosensing Applications (2008)

Marco Curreli, Chao Li, Yinghua Sun, Bo Lei, Martin A. Gundersen, Mark E. Thompson, ...

Nanomaterials, such as carbon nanotubes (CNTs) 1 and nanowires (NWs), 2 have been employed in nanoscale biosensing devices. 3 The detection of DNA and proteins is an important goal, where the...

Topics in theoretical astrophysics (2008)

Li, Chao

This thesis presents a study of various interesting problems in theoretical astrophysics, including gravitational wave astronomy, gamma ray bursts and cosmology. Chapters 2, 3 and 4 explore prospects...

Topics in theoretical astrophysics (2008)

Li, Chao

This thesis presents a study of various interesting problems in theoretical astrophysics, including gravitational wave astronomy, gamma ray bursts and cosmology. Chapters 2, 3 and 4 explore prospects...

Trispectrum of 21-cm background anisotropies as a probe of primordial non-Gaussianity (2008)

Cooray, Asantha, Li, Chao, Melchiorri, Alessandro

The 21-cm anisotropies from the neutral hydrogen distribution prior to the era of reionization are a sensitive probe of primordial non-Gaussianity. Unlike the case with cosmic microwave background,...

Analytical solutions for expanding fireballs (2008)

Li, Chao, Sari, Re'em

Many models of gamma-ray bursts (GRBs) as well as of soft gamma repeaters (SGRs) involve a fireball — an optically thick concentration of radiation energy with a high ratio of energy density to...

VeXQuery: An XQuery Extension for MPEG-7 Vectorbased Feature Query (2008)

Ling Xue, Chao Li, Yu Wu, Zhang Xiong

Abstract. MPEG-7 (Multimedia Content Description Interface) is a standard for describing the content of multimedia data and adopts XML (eXtensible Markup Language) Schema as its Description...

BIOMETRIC IDENTIFICATION USING 3D FACE SCANS (2008)

Chao Li, Armando Barreto, Craig Chin, Jing Zhai

Biometrics is an emerging area of bioengineering that pursues the characterization of a person by means of something that the person is or produces. Face recognition is a particularly attractive...

Generalization of Ryan's theorem: Probing tidal coupling with gravitational waves from nearly circular, nearly equatorial, extreme-mass-ratio inspirals (2008)

Li, Chao, Lovelace, Geoffrey

Extreme-mass-ratio inspirals (EMRIs) and intermediate-mass-ratio inspirals (IMRIs)—binaries in which a stellar-mass object spirals into a massive black hole or other massive, compact body—are...

Improved Collision and Preimage Resistance Bounds on PGV Schemes (2008)

Lei Duo, Chao Li

most basic ways to construct a hash function from a block cipher, and regarded 12 of those 64 schemes as secure. Black, Pogaway and Shrimpton[3](BRS) provided a formal and quantitative treatment of...

On Estimation of GARCH Models with an Application to Nordea Stock Prices (2008)

Chao Li, Chao Li

We are interested in estimation of stationary GARCH models. In simulation studies, we assess the performance of the maximum likelihood estimator and Yule-Walker estimator of the GARCH (1, 1) model....

Modeling Context Aware Interaction for Wayfinding using Mobile Devices (2008)

Chao Li

In this paper, we introduce and implement a model for contextaware interaction, and demonstrate its usefulness through an empirical study of interaction in a wayfinding task. Firstly, we outline the...

Observable properties of orbits in exact bumpy spacetimes (2008)

Gair, Jonathan R., Li, Chao, Mandel, Ilya

We explore the properties of test-particle orbits in bumpy spacetimes—stationary, reflection-symmetric, asymptotically flat solutions of Einstein equations that have a non-Kerr (anomalous)...

Double-notch-shaped microdisk resonator-based devices in silicon-on-insulator (2008)

Luo, Xianshu, Li, Chao, Poon, Andrew Wing On

We demonstrate double-notch-shaped microdisk resonator-based filters with waveguide butt-coupling in silicon-on-insulator. Our filter demonstrates whispering-gallery-like modes with Q exceeding 104....

Nonlinear response of silicon double-notch-shaped microdisk resonators with non-evanescent coupling (2008)

Chen, Hui, Li, Chao, Poon, Andrew Wing On, Tsang, Hon Ki

We report double–notch-shaped microdisk resonators for silicon nonlinear-optic applications with direct in/out coupling via the microdisk notches. We measure optical bistability and resonance...

Silicon Photonics Research in Hong Kong: Microresonator Devices and Optical Nonlinearities (2008)

POON, Andrew W., ZHOU, Linjie, XU, Fang, LI, Chao, CHEN, Hui, LIANG, Tak-Keung, ...

In this review paper we showcase recent activities on silicon photonics science and technology research in Hong Kong regarding two important topical areas — microresonator devices and optical...

Avalanche to streamer transition in particle simulations (2007)

Li, Chao, Ebert, Ute, Brok, W. J. M.

The avalanche to streamer transition is studied and illustrated in a particle model. The results are similar to those of fluid models. However, when super-particles are introduced, numerical...

Prospects for Detection of Gravitational Waves from Intermediate-Mass-Ratio Inspirals (2007)

Brown, Duncan A., Brink, Jeandrew, Fang, Hua, Gair, Jonathan R., Li, Chao, Lovelace, Geoffrey, ...

We explore prospects for detecting gravitational waves from stellar-mass compact objects spiraling into intermediate mass black holes (BHs) M~50M[sun] to 350M[sun]) with ground-based observatories....

Local readout enhancement for detuned signal-recycling interferometers (2007)

Rehbein, Henning, Müller-Ebhardt, Helge, Somiya, Kentaro, Li, Chao, Schnabel, Roman, Danzmann, Karsten, ...

High power detuned signal-recycling interferometers currently planned for second-generation interferometric gravitational-wave detectors (for example Advanced LIGO) are characterized by two...

Observable Properties of Orbits in Exact Bumpy Spacetimes (2007)

Gair, Jonathan R, Li, Chao, Mandel, Ilya

We explore the properties of test-particle orbits in "bumpy" spacetimes - stationary, reflection-symmetric, asymptotically flat solutions of Einstein equations that have a non-Kerr (anomalous)...

Local readout enhancement for detuned signal-recycling interferometers (2007)

Rehbein, Henning, Mueller-Ebhardt, Helge, Somiya, Kentaro, Li, Chao, Schnabel, Roman, Danzmann, Karsten, ...

Motivated by the optical-bar scheme of Braginsky, Gorodetsky and Khalili, we propose to add to a high power detuned signal-recycling interferometer a local readout scheme which measures the motion of...

Direct reconstruction of the dark energy scalar-field potential (2007)

Li, Chao, Holz, Daniel E., Cooray, Asantha

While the accelerated expansion of the Universe is by now well established, an underlying scalar-field potential possibly responsible for this acceleration remains unconstrained. We present an...

Non-Gaussian covariance of CMB B modes of polarization and parameter degradation (2007)

Li, Chao, Smith, Tristan L., Cooray, Asantha

The B-mode polarization lensing signal is a useful probe of the neutrino mass and to a lesser extent the dark energy equation of state as the signal depends on the integrated mass power spectrum...

A generalization of Ryan's theorem: probing tidal coupling with gravitational waves from nearly circular, nearly equatorial, extreme-mass-ratio inspirals (2007)

Li, Chao, Lovelace, Geoffrey

Extreme-mass-ratio inspirals (EMRIs) and intermediate-mass-ratio inspirals (IMRIs)--binaries in which a stellar-mass object spirals into a massive black hole or other massive, compact body--are...

Local readout enhancement for detuned signal-recycling interferometers (2007)

Müller-Ebhardt, Helge, Rehbein, Henning, Schnabel, Roman, Danzmann, Karsten, Chen, Yanbei, Li, Chao, ...

Motivated by the optical-bar scheme of Braginsky, Gorodetsky and Khalili, we propose to add to a high power detuned signal-recycling interferometer a local readout scheme which measures the motion of...

Gravitational waves from intermediate-mass-ratio inspirals for ground-based detectors (2006)

Brown, Duncan A., Brink, Jeandrew, Fang, Hua, Gair, Jonathan R., Li, Chao, Lovelace, Geoffrey, ...

We explore the prospects for Advanced LIGO to detect gravitational waves from neutron stars and stellar mass black holes spiraling into intermediate-mass ($M\sim 50 M_\odot$ to $350 M_\odot$) black...

Direct Reconstruction of the Dark Energy Scalar-Field Potential (2006)

Li, Chao, Holz, Daniel E., Cooray, Asantha

While the accelerated expansion of the Universe is by now well established, an underlying scalar field potential possibly responsible for this acceleration remains unconstrained. We present an...

Non-Gaussian Covariance of CMB B-modes of Polarization and Parameter Degradation (2006)

Li, Chao, Smith, Tristan L., Cooray, Asantha

The B-mode polarization lensing signal is a useful probe of the neutrino mass and to a lesser extent the dark energy equation of state as the signal depends on the integrated mass power spectrum...

Weak lensing of the cosmic microwave background by foreground gravitational waves (2006)

Li, Chao, Cooray, Asantha

Weak lensing distortion of the background cosmic microwave background (CMB) temperature and polarization patterns by the foreground density fluctuations is well studied in the literature. We discuss...

An integrative approach to face and expression recognition from three-dimensional scans (2006)

Li, Chao

Biometrics is afield of study which pursues the association of a person's identity with his/her physiological or behavioral characteristics. As one aspect of biometrics, face recognition has...

RASSF2 Induces Activated Ras-Dependent Cell Growth Inhibition and Apoptosis in Human Pancreatic Cancer Cells (2006)

Jing-Hua Ren, Ju-Sheng Lin, Wen-Shan He, Xue-Mei Sun, Pei-Yuan Li, Ying Chang, ...

AIM: Activated Ras mediates both cell death and cell survival by distinct effector pathways. It is now apparent that some of the growth-inhibitory properties of Ras are mediated via the RASSF...

Experimental demonstration of waveguide-coupled round-corner octagonal microresonators in silicon nitride (2005)

Li, Chao, Poon, Andrew Wing On

We report laterally waveguide-coupled octagonal microresonators with designed round resonator corners in silicon nitride. We demonstrate nearly singlemode add-drop filter characteristics using 50-µm...

Active silicon octagonal micropillar resonator modulators using metal-oxide-semiconductor capacitors (2005)

Li, Chao, Poon, Andrew Wing On

We propose active silicon waveguide-coupled octagonal micropillar resonator modulators using metal-oxide-semiconductor capacitors. Our initial electrical and optical simulations suggest a...

AQU2: Detection and Identification of Aquatic Microorganisms (2005)

Beth Stauffer, Mrinal Mahapatro, Chongwu Zhou, Ari Requicha, Alex Lee, Chao Li, ...

With an increase in blooms of harmful algae on both national and global levels, it is becoming ever more important to be able to detect these organisms at high spatial and temporal resolutions. It is...

Model 1+ Abstract ARTICLE IN PRESS Computers, Environment and Urban Systems (2005)

Chao Li

User preferences, information transactions and location-based services: A study of urban pedestrian wayWnding

Complementary detection of prostatespecific antigen using in o nanowires and carbon nanotubes (2005)

Chao Li, Marco Curreli, Henry Lin, Bo Lei, F. N. Ishikawa, Ram Datar, ...

Nanostructured devices, fabricated using single-walled carbon nanotubes 1 (SWNTs), silicon nanowires 2 (Si NWs), or metal oxide nanowires 3 (e.g., In2O3 NWs), are good candidates to manufacture...

On the Boolean Functions with Maximum Possible Algebraic Immunity: Construction and a Lower Bound of the Count (2005)

Longjiang Qu, Guozhu Feng, Chao Li, A Lower, Bound Count

This paper gives a construction method which can get a large class of Boolean functions with maximum algebraic immunity(AI) from one such giving function. Our constructions get more functions than...

Profile-Based 3D Face Registration and Recognition (2005)

Chao Li, O Barreto

Abstract. With the rapid development of 3D imaging technology, face recognition using 3D range data has become another alternative in the field of biometrics. Unlike face recognition using 2D...

Waveguide-coupled round-corner octagonal microresonator channel add-drop filters (2004)

Li, Chao, Poon, Andrew Wing On

We report the first waveguide-coupled round-corner octagonal microresonator channel add-drop filters on silicon-nitride-on-silica substrates. By using photolithography and plasma etching, we...

Active silicon microring resonators using metal-oxide-semiconductor capacitors (2004)

Li, Chao, Poon, Andrew Wing On

We propose an injection-type active silicon microring resonator using metal-oxide-semiconductor capacitors. Our simulations reveal a modulation bandwidth exceeding 2 GHz, a resonance shift of 0.5 nm,...

Spatial ability, urban wayfinding and location-based services: a review and first results (2004)

Li, Chao (Lily)

Location-Based Services (LBS) are a new industry at the core of which are GIS and spatial databases. With increasing mobility of individuals, the anticipated availability of broadband communications...

The impact and penetration of location-based services (2002)

Shiode, Narushige, Li, Chao, Batty, Michael, Longley, Paul, Maguire, David

Since the invention of digital technology, its development has followed an entrenched path of miniaturisation and decentralisation with increasing focus on individual and niche applications. Computer...

M.: Validating objected-oriented prototype of real-time systems with timed automata (2002)

Guoqiang Shu, Chao Li, Qing Wang, Mingshu Li

Object-oriented development of real-time systems is becoming more and more prevalent. Unified Modeling Language (UML) is a standardized notation for describing object-oriented software design. While...

The UK geography of the e-society: a national classification

Paul A Longley, Richard Webber, Chao Li

It is simplistic to think of the impacts of new information and communication technologies (NICTs) in terms of a single ‘digital divide’, or even a small number of them. As developments in what...

Noncontact Measurement of the Local Mechanical Properties of Living Cells Using Pressure Applied via a Pipette

Sánchez, Daniel, Johnson, Nick, Li, Chao, Novak, Pavel, Rheinlaender, Johannes, Zhang, Yanjun, ...

Mechanosensitivity in living biological tissue is a study area of increasing importance, but investigative tools are often inadequate. We have developed a noncontact nanoscale method to apply...

ISG56 is a negative-feedback regulator of virus-triggered signaling and cellular antiviral response

Li, Ying, Li, Chao, Xue, Peng, Zhong, Bo, Mao, Ai-Ping, Ran, Yong, ...

IFN-stimulated gene 56 (ISG56) is one of the first identified proteins induced by viruses and type I IFNs. In this study, we identified ISG56 as a virus-induced protein associated with MITA, an...