Byoungkuk
Byoungkuk Kim, Yongin-Si KR
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20120188361 | SYSTEM FOR IMAGE ANALYSIS AND METHOD THEREOF - A system for image analysis and a method thereof are disclosed. In one embodiment, the system includes a detector configured to receive an image of a sample, isolate particles from a background image of the sample image and detect positions of the isolated particles and a first operator configured to calculate a static degree of randomness values of the particles using Lennard-Jones potentials based on the detected positions. The system may further include a second operator configured to obtain a dynamic degree of randomness values of particles based at least in part on the sum of tensile forces between particles by implicit integration added until the particles reach a dynamic equilibrium, and calculate a positional degree of randomness of particles based at least in part on subtraction of the dynamic degree of randomness values from the static degree of randomness values. | 07-26-2012 |
Byoungkuk Lee, Seoul KR
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20130271077 | CHARGE APPARATUS AND ELECTRIC VEHICLE INCLUDING THE SAME - A charging apparatus and an electric vehicle including the same are disclosed. The charging apparatus includes a rectifier to rectify input alternating current (AC) power in a charging mode, an interleaved buck-boost converter to convert the rectified power into direct current (DC) power to supply the converted DC power to a battery, the interleaved buck-boost converter including a plurality of buck-boost converters, and a converter controller to control the interleaved buck-boost converter, wherein a first buck-boost converter of the interleaved buck-boost converter includes a first buck switching element connected to the rectifier, a first boost switching element, an inductor connected between the first buck switching element and the first boost switching element, a first diode connected in parallel between the first buck switching element and the inductor, and a second diode connected between the first boost switching element and an output of the interleaved buck-boost converter. | 10-17-2013 |
Byoungkuk Son, Daejeon KR
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20150340696 | CATHODE ACTIVE MATERIAL FOR LITHIUM-SULFUR BATTERY AND MANUFACTURING METHOD THEREFOR - The present invention relates to a cathode active material for a lithium-sulfur battery and a method of preparing the same, and more particularly, to a cathode active material for a lithium-sulfur battery comprising: an amphiphilic polymer comprising hydrophilicity parts and hydrophobicity parts; and a sulfur-carbon composite, and a method of preparing the same. When a lithium-sulfur battery is prepared using the cathode active material, there is an effect which may enhance the electric conductivity in an electrode, cycle characteristics and capacity. | 11-26-2015 |