Jae-hyeong Ahn

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The microbial production of 1,3-propanediol (1,3-PD) from raw glycerol, a byproduct of biodiesel production, is economically and environmentally advantageous. Although direct use of raw glycerol without any pretreatment is desirable, previous studies have reported that this could cause inhibition of microbial growth. In this study, we investigated the(More)
The purpose of this study was to characterize the putative anxiolytic-like effects of the aqueous extract of the rhizome of Gastrodia elata along with its phenolic constituents, 4-hydroxybenzyl alcohol (HA) and 4-hyroxybenzaldehyde (HD), using an elevated plus maze (EPM) in mice. The mice were administered either the aqueous G. elata extract orally or(More)
This study has proposed a new method of color representation, and a method of similarity measurement in order to overcome the disadvantages of a color histogram. The existing color histogram intersection method uses only the frequency value of the same color, after color quantization; which causes quantization errors. To reduce this error, it calculated the(More)
Mean shift algorithm is a nonparametric statistical method for seeking the main modes of a point sample distribution. This process achieves a high quality, discontinuity preserving spatial filtering. For the segmentation task, the convergence points sufficiently close in the joint domain are fused to obtain the homogeneous regions in the image. However, a(More)
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