76,459 research outputs found
The minimal augmented Zagreb index of k-apex trees for k∈{1,2,3}
No full textFor a graph G containing no component isomorphic to the 2-vertex path graph, the augmented Zagreb index (AZI) of G is defined as AZI(G)=∑uv∈E(G)([Formula presented])3.This topological index has been proved to be closely correlated with the formation heat of heptanes and octanes. A k-apex tree is a connected graph G admitting a k-subset of vertices X such that G−X is a tree, but for any subset of vertices X′ of order less than k, G−X′ is not a tree. In this paper, we determine the minimum AZI among all k-apex trees for k∈{1,2,3}
3D Online Multimedia and Games
No full textOnline applications have been gaining wide acceptance among the general public. Companies like Amazon, Google, Yahoo! and NetFlicks have been doing extremely well over the last few years largely because of people becoming more comfortable and trusting of the Internet. The increasing acceptance of online products makes it increasingly important to address some of the scientific techniques involved in developing efficient 3D online systems.
The topics discussed in this book broadly cover four categories: networking issues in online multimedia; joint texture-mesh simplification and view independent transmission; view dependent transmission and server-side rendering; content and background creation; and creating simple online games.
Contents:
Adaptive Bandwidth Monitoring for QoS Based Retrievel (A Basu et al.)
Wireless Protocols (A Khan)
Overview of 3D Coding and Simplification (I Cheng & L Ying)
Scale-Space Filtering and LOD — The TexMesh Model (I Cheng)
Adaptive Online Transmission of Photo-Realistic Textured Mesh (I Cheng)
Perceptual Issues in a 3D TexMesh Model (I Cheng)
Quality Metric for Approximating Subjective Evaluation of 3D Objects (A Basu et al.)
Perceptually Optimized 3D Transmission Over Wireless Networks (I Cheng & A Basu)
Predictive Schemes for Remote Visualization of 3D Models (P Zanuttigh & G M Cortelazzo)
A Rate Distortion Theoretic Approach to Remote Visualization of 3D Models (N Brusco et al.)
3D Content Creation by Passive Optical Methods (L Ballan et al.)
3D Visualization and Compression of Photorealistic Panoramic Backgrounds (P Zanuttigh et al.)
A 3D Game — Castles (G Xiao et al.)
A Networked Version of Castles (D Lien et al.)
A Networked Multiplayer Java3D Game — Siege (E Benner et al.)
Collaborative Online 3D Editing (I Cheng et al.
Personal Papers (MS 80-0002)
No full textLetter from James T. Baird to S. K. Cheng asking him to reserve a room for Harris and Ruth Kempner for when they are in Taipei
New generation of switched capacitor converters
No full textAuthor name used in this publication: Cheng K. W. E.Version of RecordPublishedVoR allowe
Correction of 3D rigid body motion in fMRI time series by independent estimation of rotational and translational effects in k-space
No full textIn functional magnetic resonance imaging (fMRI), even subvoxel motion dramatically corrupts the blood oxygenation level-dependent (BOLD) signal, invalidating the assumption that intensity variation in time is primarily due to neuronal activity. Thus, correction of the subject's head movements is a fundamental step to be performed prior to data analysis. Most motion correction techniques register a series of volumes assuming that rigid body motion, characterized by rotational and translational parameters, occurs. Unlike the most widely used applications for fMRI data processing, which correct motion in the image domain by numerically estimating rotational and translational components simultaneously, the algorithm presented here operates in a three-dimensional k-space, to decouple and correct rotations and translations independently, offering new ways and more flexible procedures to estimate the parameters of interest. We developed an implementation of this method in MATLAB, and tested it on both simulated and experimental data. Its performance was quantified in terms of square differences and center of mass stability across time. Our data show that the algorithm proposed here successfully corrects for rigid-body motion, and its employment in future fMRI studies is feasible and promising. (C) 2009 Elsevier Inc. All rights reserved. RI Waggoner, R./F-2654-201
Development of intelligent rapid batteries charger
No full textAuthor name used in this publication: Cheng K. W. E.Refereed conference paper2004-2005 > Academic research: refereed > Refereed conference paperVersion of RecordPublishedPublisher permissio
An Interview with an Author and Editor: The View from Taiwan
No full textORCID Engagement Manager Asia-Pacific, Estelle Cheng, recently spoke with Wen-Yau Cathy Lin, an academic, author and scholarly journal editor about ORCID and its use in Taiwan
Validity of the Novel Taiwan Lymphoscintigraphy Staging and Correlation of Cheng Lymphedema Grading for Unilateral Extremity Lymphedema
No full textOBJECTIVE: The aim was to validate the new Taiwan Lymphoscintigraphy Staging, correlate it with Cheng Lymphedema Grading (CLG) and evaluate the treatment outcomes of unilateral extremity lymphedema. BACKGROUND: No consensus has been reached for diagnosis and staging for patients with lymphedema among medical specialties. METHODS: We included 285 patients with unilateral extremity lymphedema using lymphoscintigraphy. Lymphoscintigraphy was correlated to clinical symptoms and signs, and classified into normal lymphatic drainage, partial obstruction, and total obstruction. Inter- and intraobserver reliability of Taiwan Lymphoscintigraphy Staging, correlation between Taiwan Lymphoscintigraphy Staging and clinical findings were conducted. Patients were categorized in "surgical" (n = 154) or "nonsurgical" (n = 131) groups for outcome evaluation. RESULTS: Lymphoscintigraphy found 11 patients (3.9%) with normal lymphatic drainage, 128 (44.9%) with partial obstruction, and 146 (51.2%) with total obstruction. Taiwan Lymphoscintigraphy Staging showed high interobserver agreement [intraclass correlation coefficient: 0.89 (95% confidence interval, 0.82-0.94)], and significantly correlated to computed tomography volumetric difference (r = 0.66, P < 0.001) and CLG [intraclass correlation coefficient: 0.79 (95% confidence interval 0.72-0.84)]. At a mean follow-up of 31.2 ± 2.9 months, significant improvement in the circumferential difference (from 23.9% ± 17.6% to 14.6% ± 11.1%; P = 0.03) with a mean circumferential reduction rate of 40.4% ± 4.5% was found in surgical group. At a mean follow-up of 26.6 ± 8.7 months, the nonsurgical group had increase of mean circumferential difference from 24.0% ± 17.2% to 25.3% ± 19.0% (P = 0.09), with a mean circumferential reduction rate was -1.9% ± 13.0%. CONCLUSIONS: The Taiwan Lymphoscintigraphy Staging is a reliable diagnostic tool, correlated with clinical findings and CLG, aiding in the selection of the appropriate treatment to achieve favorable long-term outcomes in unilateral extremity lymphedema
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