Yeon-Ho Jeong

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BACKGROUND Ginsenoside Rg3 is a promising anticancer agent. It is usually produced by heat treatment of ginseng, in which ginsenoside Rb1 is the major ginsenoside. A kinetic study was conducted to optimize ginsenoside Rg3 production by the heat treatment of ginsenoside Rb1. METHODS Ginsenoside Rb1 was heated using an isothermal machine at 80°C and 100°C(More)
Cranial placodes are thickenings of the embryonic head ectoderm that contribute to the paired sense organs and to the cephalic peripheral nervous system. Here we report the spatiotemporal expression pattern of transcription factor Pitx2c during Xenopus laevis cranial placode formation, focusing more specifically on key stages of trigeminal and profundal(More)
A 10-bit 100-kS/s successive approximation register (SAR) analog-to-digital converter (ADC) with rail-to-rail input range is proposed for a low power sensor interface. It consists of a time-domain comparator, a split capacitor-based digital-to-analog converter (SC-DAC) and a SAR logic. The time-domain comparator with an offset calibration technique is used(More)
A yard in a container terminal is a temporary storage space before containers are loaded onto the target vessel or delivered to consignees. For improving the utilization of the space in the yard and the efficiency of loading and discharging operations, it is important that operation plans must be carefully constructed in advance. A heuristic method is(More)
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