Jong-bok Kim

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Optimum conditions for the determination of the herbicides paraquat, diquat and difenzoquat by micellar electrokinetic chromatography (MEKC) using sweeping and cation-selective exhaustive injection (CSEI) as on-line concentration methods were developed. Sodium dodecyl sulfate (80 mM) in 50 mM phosphate buffer (pH 2.5) with 20% acetonitrile was used as a(More)
A selective on-line sample concentration technique of anion selective exhaustive injection (ASEI)-sweep-micellar electrokinetic chromatography (MEKC) was evaluated using a cationic surfactant. To suppress the electroosmotic flow, a polyacrylamide-coated capillary was introduced. Some aromatic carboxylic acids, dansyl amino acids, and naphthalene-disulfonic(More)
Enantioselective separation of triadimenol, a component of systemic agricultural fungicide, by electrokinetic chromatography (EKC) using cyclodextrins (CDs) as chiral selectors was investigated. Both a neutral CD derivative, hydroxypropyl-gamma-CD (HP-gamma-CD), and an ionic one, heptakis-6-sulfato-beta-CD (HS-beta-CD), were employed as an additive in(More)
This review provides an overview as well as a practical understanding of on-line sample concentration techniques in micellar electrokinetic chromatography (MEKC). MEKC as well as other capillary electrophoretic modes suffer from low concentration sensitivity due to minute sample volume and limited optical pathlength for on-capillary photometric detection.(More)
Two on-line sample concentration techniques, sample stacking and sweeping, were evaluated using cationic surfactants as pseudostationary phases in micellar electrokinetic chromatography. As cationic surfactant micelles, tetradecyltrimethylammonium bromide and cetyltrimethylammonium chloride were employed. About 10-fold and 1000-fold increases in detection(More)
Pedestrian detection is one of the major goals in advanced driver assistance systems (ADAS) which has become an active research area in recent years. In this paper, we present a stereo based pedestrian detection system by fusing the depth and color data provided by a stereo vision camera on a moving platform. The proposed method uses an adaptive window for(More)
Sweeping in capillary electrophoresis (CE) involves the interaction of a pseudostationary phase (PS) in the separation solution and a sample in the matrix that is free of the PS used. The PS includes not only the PSs employed in electrokinetic chromatography, but also complexation reagents such as borate. The sample matrix could have a lower, similar, or(More)
To improve detection sensitivity of cationic analytes, a dynamic pH junction technique was examined. Dynamic pH junction is an on-line focusing method in capillary electrophoresis (CE) based on the difference in the analyte's mobility between the background electrolyte (BGE) and sample matrix. The effects of pH values and concentrations of the BGE and the(More)
Depth-image based rendering is a popular technique for rendering virtual views for the multi-view video plus depth (MVD) 3DTV format. Instead of transmitting a high number of views to the receiver, only a few views are transmitted along with their corresponding depth maps and the missing views are interpolated from these transmitted views. This process is(More)