On the Progenitor of the Type II-Plateau SN 2008cn in NGC 4603 (2009)
Elias-Rosa, N., Van Dyk, S. D., Li, W., Morrell, N., Gonzalez, S., Hamuy, M., ...
Through comparison of pre- and post-explosion images obtained with the Wide Field and Planetary Camera 2 onboard the Hubble Space Telescope, we have isolated a supergiant star prior to explosion at...
Optical Observations of the Rapidly Expanding Type Ia Supernova 2007gi (2009)
Zhang, T., Wang, X., Li, W., Filippenko, A. V., Wang, L., Zhou, X., ...
We present optical photometry and spectra for the Type Ia supernova (SN Ia) 2007gi in the nearby galaxy NGC 4036. SN 2007gi is characterized by extremely high-velocity (HV) features of the...
A new type of stellar explosion (2009)
Perets, H. B., Gal-Yam, A., Mazzali, P., Arnett, D., Kagan, D., Filippenko, A. V., ...
The explosive deaths of stars (supernovae; SNe) are generally explained by two physical processes. Young massive stars (more than eight solar masses, M_Sun) undergo gravitational core-collapse and...
Improved Distances to Type Ia Supernovae with Two Spectroscopic Subclasses (2009)
Wang, Xiaofeng, Filippenko, A. V., Ganeshalingam, M., Li, W., Silverman, J. M., Wang, L., ...
We study the observables of 158 relatively normal Type Ia supernovae (SNe Ia) by dividing them into two groups in terms of the expansion velocity inferred from the absorption minimum of the Si II...
Line stress from step edges and its impact on cantilever bending. (2009)
Li, W., Duan, H., Smetanin, M., Weissmüller, J.
Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009
DynaQoS©-RDF : a best effort for QoS-assurance of dynamic reconfiguration of dataflow systems (2009)
The significance of QoS-assurance is being increasingly recognized by both the research and wider communities. In the latter case, this recognition is driven by the increasing adoption by business of...
The normal type Ia SN 2003hv out to very late phases (2009)
Leloudas, G., Stritzinger, M. D., Sollerman, J., Burns, C. R., Kozma, C., Krisciunas, K., ...
Perley, D. A., Li, W., Chornock, R., Prochaska, J. X., Butler, N. R., Chandra, P., ...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any GRB, with R ≈ 12 mag in KAIT observations starting 42 s after the GRB trigger, including...
Li, W., Li, X., Li, Zheng-Xiang
Middle Neoproterozoic igneous rocks are widespread in South China, but their petrogenesis and tectonic implications are still highly controversial. The Guangfeng middle Neoproterozoic...
Han, P. G., Ma, Z. Y., Xia, Z. Y., Chen, D. Y., Wei, D. Y., Qian, B., ...
a-Si/SiO2 multilayers with different a-Si sublayer thicknesses were prepared by plasma enhanced chemical vapour deposition (PECVD). An intermediate phase silicon structure (IPSS), which is...
Automating dynamic reconfiguration for non-stop dataflow systems (2007)
In this paper, we firstly review the concerned issues on dynamic reconfiguration of non-stop dataflow systems with QoS requirement and what the related work have been done on these issues. Then we...
Dynamic reconfiguration of distributed data flow systems (2007)
Although many approaches to dynamic reconfiguration have been proposed, how the impact of reconfiguration on system QoS can be controlled has not been addressed adequately so far. In this paper, we...
Influence control for dynamic reconfiguration of data flow systems (2007)
Influence control is a very challenging issue in dynamic reconfiguration and still not well addressed in the literature. This paper argues that dynamic reconfiguration influences system execution in...
A Maximum Likelihood Watermark Decoding Scheme (2007)
Lu, W., Li, W., Safavi-Naini, R., Ogunbona, P.
Based on the observation that an attack applied on a watermarked image, from a decoding point of view, modifies the distribution of the detection values away from the ideal distribution (without...
An Agent-based adaptive task-scheduling model for peer-to-peer computational grids (2006)
This paper presents an agent-based adaptive task-scheduling model for pure P2P computational grids, in which the task-scheduling mechanism is recursive, dependable and purely decentralized. The main...
Cryptographic Key Generation from Biometric Data Using Lattice Mapping (2006)
Crypto-biometric systems are recently emerging as an effective process of key management to address the security weakness of conventional key release systems using passcodes, tokens or pattern...
A Pixel-Based Robust Imagewatermarking System (2006)
Lu, W., Li, W., Safavi-Naini, R., Ogunbona, P.
Robust image watermarking systems are required to be resistant to geometric attacks in addition to common image processing tasks, such as JPEG compression. However, robustness against geometric...
A Fast Algorithm for Color Image Segmentation (2006)
Dong, L., Ogunbona, P., Li, W., Yu, G., Fan, L., Zheng, G.
Based on K-means and a two-layer pyramid structure, a fast algorithm is proposed for color image segmentation. The algorithm employs two strategies. Firstly, a two-layer structure of a color image is...
A Prototype of Autonomous Intelligent Surveillance Cameras (2006)
Li, W., Kharitonenko, I., Lichman, S., Weerasinghe, C.
This paper presents an architecture and an FPGAbased prototype of an autonomous intelligent video surveillance camera. The camera takes the advantage of high resolution of CMOS image sensors and...
894 Effect of endovascular stenting of aortic coarctation on biventricular function in adults (2006)
Valverde-Franco, G., Binette, J. S., Li, W., Wang, H., Chai, S., Laflamme, F., ...
Fibroblast growth factor (FGF) receptor 3 has been identified as a key regulator of endochondral bone development and of post natal bone metabolism through its action on growth plate chondrocytes and...
PDF receptor signaling in Drosophila contributes to both circadian and geotactic behaviors (2005)
Vandingenen, A, Johnson, EC, Shafer, OT, Li, W, Trigg, JS, ...
The neuropeptide Pigment-Dispersing Factor (PDF) is a principle transmitter regulating circadian locomotor rhythms in Drosophila. We have identified a Class II (secretin-related) G protein-coupled...
Breaking the constraints to a high performance metacomputing system : a system approach (2005)
Li, Lily Dujuan., Li, W., Stonier, Russel J., Yu, X.
The Theory of Constraints (TOC) maintains that every system has its goal. There are necessary conditions that must be satisfied in order to achieve the goal. A constraint is a condition that prevents...
A New Divide and Conquer Algorithm for Graph-based Image and Video Segmentation (2005)
The concept of the Shortest (or Minimum) Spanning Tree (SST)and Recursive SST (RSST) of an undirected weighted graph has been successfully applied in image segmentation and edge detection. This paper...
Simultaneous Map Estimation of Inhomogeneity and Segmentation of Brain Tissues from MR Images (2005)
Li, W., DeSilver, C., Attikiouzel, Y.
Intrascan and interscan intensity inhomogeneities have been identified as a common source of making many advanced segmentation techniques fail to produce satisfactory results in separating brains...
Kharitonenko, I., Li, W., Weerasinghe, C.
This work presents a novel architecture of an intelligent video surveillance camera. It is embedded with automated scene analysis and object behavior detection, so that operators can monitor more...
Identifying and breaking necessary constraints to web-based metacomputing (2004)
Metacomputing aims at using the computing power of computers linked by networks for various applications, which used to be tackled by dedicated supercomputers a few years ago. Web-based metacomputing...
A scalable and oblivious digital watermarking for images (2004)
Lu, W., Safavi-Naini, R., Uehara, T., Li, W.
Scalable compression algorithms, such as JPEG, can compress images to different quality or resolution levels so that the target systems with different display capabilities, can display the image....
Visual perceptual process model and object segmentation (2004)
Li, W., Ogunbona, P., Yi, L., Kharitonenko, I.
Modeling human visual process is crucial for automatic object segmentation that is able to produce consistent results to human perception. Based on the latest understanding of how human performs the...
A semi-supervised map segmentation of brain tissues (2004)
Li, W., DeSilver, C., Attikiouzel, Y.
This paper presents a method for semi-supervised MAP (maximum a-posterior probability) segmentation of brain tissues where labelled data are available for either all types of tissues or only a few...
758 Stentless aortic bioprosthesis competence and aortic root geometry (2003)
Li, W., Jin, X. Y., Kumar, P., O'Sullivan, C., Henein, M., Pepper, J.
Li, W, Zhao, Huijun, Teasdale, Peter, John, Richard, Zhang, Shanqing
A polyacrylamide–polyacrylic acid copolymer hydrogel was prepared by the controlled hydrolysis of polyacrylamide in an alkaline solution of 10% sodium hydroxide. The structure and composition of...
Simulation of 125I Induced DNA Strand Breaks in a CAP-DNA Complex (2002)
Li, W., Friedland, W., Jacob, P., G. Paretzke, H., Panyutin, I.
The E. coli catabolite gene activator protein (CAP)-DNA complex with 125I located at the position of the H5 atom of the cytosine near the centre was incorporated into the PARTRAC track structure...
Infective endocarditis in the grown-up congenital heart (GUCH) population (1998)
Aims Infective endocarditis accounts for 4% of admissions to a specialized unit for grown-up congenital heart patients. This study defines lesions susceptible to infection, antecedent events,...
Compile-Time Scheduling Algorithms for a Heterogeneous Network of Workstations (1997)
Cierniak, M., Zaki, M. J., Li, W.
In this paper, we study the problem of scheduling parallel loops at compile time for a heterogeneous network of workstations. We consider heterogeneity in various aspects of parallel programming:...
Steptoe, R. J., Fu, F., Li, W., Drakes, M. L., Lu, L., Demetris, A. J., ...
Treatment of mice with the recently cloned hemopoietic growth factor Flt3 ligand (FL; 10 microg/day for 10 days) resulted in a large increase in myeloid lineage cells within the liver. While the...
Li, W, Liu, Xiaoshun; U0033271, Yanoff, M, Cohen, S, Ye, X
A number of clinical observations concerning cases of glycemic fluctuation have prompted us to study whether or not a rapid change in blood glucose concentration can aggravate retinal microvascular...
Microdosimetry Computation Code for Internal Sources (1996)
A microdosimetry computation code named MICRODOSE1 has been developed on the basis of the following described methods: (1) the calculation of f1(z) for charged particles in unit density tissues; (2)...