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The interactive artwork “deBallution” is to catch audience members' throwing movements on a virtual screen and drawing various generated kaleidoscope images to predict points from the audience throwing on the screen. Audience members threw the pseudo-balls for large-size screen and caused symbolic digital revolution, devolution.
A focal tracking system is a tracing system that tracks a special marker called a focal marker. The cameras of a focal tracking system obtain images including bokeh which is shown from the a focal marker. Finding accurate center of bokeh is important for high precision position tracking of a focal marker. However, a focal tracking system suffers from vignetting effect which makes it difficult to find...
In the present study, numerical simulations of drilling fluids that composed with two media on a mechanical agitator in a mud handling system were carried out to investigate the mixing performance of agitator and the keeping performance of homogeneity using both Eulerian and Lagrangian approaches. For simulation, two commercial softwares, STAR CCM+ based on Eulerian approach and Particleworks based...
A novel resonator structure for lateral-misalignment of wireless power transfer is presented. The proposed resonator is composed of a concentrated coil and several small loop coils. The uniform magnetic field distributions of the proposed resonator are described. The proposed hybrid resonator improves about 30% of the relative efficiency variation for a lateral-misalignment.
This paper deals with finding the optimal ratio of height and length of Single-Sided Linear Induction Motors (SLIM) using Finite Element Method (FEM) for magnetic field analysis coupled with optimal design methodology. For effective analysis, FEM is conducted in time harmonic field which provides steady state performance with the fundamental components of voltage and current. The ratio of height to...
Brazing joint is one of the most critical fact in the performance of heat-exchanger. Therefore, The proper method is required for the precise inspection to detect existing defects in the brazing joints. Two types of heat exchangers were analyzed to obtain cross-sectional images by using CT(Computerized tomography) and the defects were inspected with inspection system. The detected defects were saved...
With strong needs of continued miniaturization and high density integration of semiconductor packages, the wafer level package technology leads the semiconductor package trend. For high reliability of the devices, wafer bumps and substrate bumps used for their connection junctions need to be in-line inspected in terms of top-height distribution, coplanarity, and volume uniformity. In this paper, a...
In this study, we confirmed proprioception training effect of patients with hemiplegia by manipulating visual feedback. Six patients with hemiplegia were participated in the experiment. Patients have trained with the reaching task with visual feedback without visual feedback for two weeks. Patients were evaluated with pre-, middle test and post-test with the task with and without visual feedback....
In this paper, we propose an image retrieval method using color feature and shape feature. We suggest CBIR (content based image retrieval) method using color and shape information. Using just one feature information may cause inaccuracy compared with using more than two feature information. Therefore many image retrieval system use many feature information like color, shape and other features. We...
If the signal statistics are given, direct vector quantization (DVQ) according to these statistics provides the highest coding efficiency, but requires unmanageable storage requirements. In. code-excited linear predictive (CELP) coding. a single “compromise” codebook is trained in the prediction residual-domain and the space-filling and shape advantages of vector quantization (VQ) are utilized in...
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