Young-San
Young-San Park, Seoul KR
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20130046470 | METHOD AND APPARATUS OF DEVELOPING HIGH-RESOLUTION SOLAR METEOROLOGICAL RESOURCE MAP BASED ON METEOROLOGICAL DATA - Provided are a method and an apparatus of developing a high-resolution solar meteorological resource map based on meteorological data, the method comprisingincluding: generating a grid with a predetermined length for a selected region on a map and setting resolution corresponding to a size of the grid; converting digital elevation model data and albedo data of the earth's surface into the resolution corresponding to the size of the grid; converting meteorological data into the resolution corresponding to the size of the grid; calculating a global solar radiation using the digital elevation model data, the albedo data of the earth's surface and the meteorological data as converted above; accumulating the calculated global solar radiation during a fixed period; and generating a solar meteorological resource map using the accumulated global solar radiation. | 02-21-2013 |
Young-San Shin, Seoul KR
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20140333289 | CURRENT DETECTION DEVICE FOR MULTI-SENSOR ARRAY - A current detection device for a multi-sensor array is provided. The current detection device includes a current input unit, a current conversion unit, a digital conversion unit, and a voltage applying unit. The current input unit amplifies a plurality of current signals input from a multi-sensor array according to a predetermined current minor ratio, and fixes each of node voltages to which the plurality of current signals are input. The current conversion unit converts each of the amplified current signals into an amplified voltage signal using a plurality of feedback resistors and an operational amplifier which are connected in parallel. The digital conversion unit converts each of the amplified voltage signals converted by the current conversion unit into a digital value. The voltage applying unit generates voltages for driving each of the multi-sensor array, the current input unit, the current conversion unit, and the digital conversion unit, and applies the generated voltages thereto. | 11-13-2014 |
Young-San Yoo, Shiheung-City KR
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20100075842 | POTASSIUM OXIDE-INCORPORATED ALUMINA CATALYSTS WITH ENHANCED STORAGE CAPACITIES OF NITROGEN OXIDE AND A PRODUCING METHOD THEREFOR - Disclosed herein is a method of producing a catalyst for storing nitrogen oxides, including: supporting a potassium oxide on alumina, which serves as a support, and then calcining the alumina supported with the potassium oxide at a high temperature, thus chemically bonding potassium oxide with the alumina. The method is advantageous in that a catalyst for storing nitrogen oxides, having high nitrogen oxide storage capacity and excellent hydrothermal stability, can be produced at low cost through a simple process. | 03-25-2010 |
Young-San Yoo, Ansan-City Kyungki-Do KR
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20090257934 | Transition metal - substituted hydrotalcite catalyst for removing nitrogen oxides from the exhaust gas of diesel engine by storage - reduction - Disclosed herein is a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, in which a molar ratio of transition metal to magnesium is 0.2 or less, and a method of manufacturing a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, including the steps of preparing a hydrotalcite synthesis solution including transition metal precursors such that the molar ratio of transition metal to magnesium is 0.2 or less, and preferably 0.001 to 0.2; aging the synthesis solution; and hydrothermally treating the synthesis solution. | 10-15-2009 |