• Proceedings of the PSK Conference
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• 2003.04a
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• pp.290.3-291
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• 2003

To increase detection sensitivity for multi-DDT residues (o,p-/p,p-DDT, o,p-/p,p-DDE, o,o-/o,p-DDD) analysis, a highly selective sample clean-up method was introduced prior to GC/MS analysis using immunoaffinity column. The immunoaffinity matrix was prepared by coupling IgG fraction of DDT antiserum to cyanogens bromide activated Sepharose 4B. Three DDT antisera (DDA-1, DDHP-2, DDCP-3) were test for affinity column ligand that obtained by imunizing respective DDT immunogen to rabbits, and IgG was purified using protein A affinity purification. (omitted)

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1998.11a
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• pp.48-51
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• 1998

This paper presents the transport and removal of organic substances from the contaminated soft soils and sludges such as marine dredging waste, marine sediments, mine tailing waste, and sewage sludge by electroosmosis. A series of laboratory experiments including variable conditions such as contamination levels, solid contents, and applied voltage rates were peformed with the contaminated soft clay specimen mixed with organic substance. Investigated are specimen density, dewatering rate, outflow rate, and outflow concentration. The test results showed that organic substances in the soils were removed by applied voltages. The results indicated that this process can be used efficiently to clean up the contaminated soil.

• Korean Journal of Child Studies
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• v.28 no.4
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• pp.1-17
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• 2007

Participants in this study on links between toddlers' compliance and variables were 97 toddlers and their mothers. Instruments were the Toddler Behavior Assessment Questionnaire (Goldsmith, 1988) and the Child Rearing Practice Report-Q Sort (Block, 1981). Toddlers' compliance was observed on clean-up and behavior-delay tasks. Data analysis was by logistic and regression analyses. Results on the clean-up task indicated lower compliance by difficult children and higher compliance by girls. On the behavior-delay task, boys with less difficult temperament showed higher compliance by mother's higher punishment attitudes, whereas highly difficult boys were more compliant by mother's lower punishment attitudes. Girls' compliance was higher than boys in the low inhibition group whereas boys' compliance was higher than girls in the high inhibition group.

• Korean Journal of Child Studies
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• v.25 no.5
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• pp.41-58
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• 2004

This study examined the relations between children's Impulsivity temperament, socio-dramatic play, and self-regulation of 4-year-old children. Subjects were 117 4-year-old children(59 boys and 58 girls) selected from three kindergartens. Each mother completed a questionnaire on her child's temperament. Naturalistic observations of total socio-dramatic play, complex socio-dramatic play, solitary dramatic play and of self-regulation in two classroom contexts - clean-up periods and group circle time - were conducted for obtaining data. Significance was analyzed by Pearson's correlation and multiple regression analysis. Children's Impulsivity was negatively related to self-regulation and to total and complex socio-dramatic play, but impulsivity was positively related to solitary dramatic play. Total and complex socio-dramatic play was positively related to self-regulation while solitary dramatic play was negatively related to self-regulation. Total and complex socio-dramatic play, and solitary dramatic play displayed a mediating role between impulsivity and self-regulation during clean-up periods.

• Journal of Korean Society for Atmospheric Environment
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• v.18 no.6
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• pp.475-485
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• 2002

An analytical method was investigated for the meaiiurement of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) concentrations in air samples. Procedures required for column chromatographic clean up. silicagel (stage I) and gel permeation chromatography (stage II), were discussed. Identification and quantification of PCBs and OCPs were performed using a combination of gas chromatography/mass spectrometry/ selected ion monitoring. Recovery tests calculated from six samples are 68∼137% for PCBs and 58∼130% for OCPs except for endrin aldehyde. Instrumental detection limits determined for the PCBs and OCPs varied from 0.05 to 0.18 pg/m3 and from 0.71 to 16.82 pg/㎥, respectively. The method has been applied to the analysis of air samples collected at Ansung city, Kyonggi province, Korea. This method may serve as a screening protocol for the simultaneous determination of PCBs and OCPs in air.

• YAKHAK HOEJI
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• v.33 no.3
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• pp.156-160
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• 1989

A gas-chromatographic determination method of thiamin which use a quantitative cleavage of thiamin to 4-methyl-5-(2-hydroxyethyl)thiazol [I] and solvent extraction of the analyte prior to GC injection was modified. A column chromatographic procedure using a reversed phase, high capacity solid phase cartridge was applied to the clean-up of the analyte. Thiazol derivative[I] was quantitatively recovered upon the column method. Acetanilide, an internal standard, has a good recovery through the analytical procedure. The method has analytical precision of 2% or less in the coefficient of variation.

• Membrane Journal
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• v.2 no.1
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• pp.1-20
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• 1992

Classical membrane processes like microfiltration (MF), ultrafiltration (UF) and reverse osmosis (RO) are being applied in the last years more frequently in environmental and effluent process problems. Newer technologies and developments like pervaporation (PV) and gas sepaxation (GS) recently found commercial applications in the treatment of waste waters and gas streams. The incentive here is either the clean-up from organic components to comply with federal emission regulations or the recovery of the organics for economical reasons. Processes still in their development stage are combinations of chemical reactions with membrane processes to separate and treat $SO_x$ and $NO_x$ laden waste gas streams in the clean-up of stack-gases. In this paper we will first give a short overview of the more recent developments in MF, UF and RO. This is followed by a closer look on newer technologies applied in environmental problems. The applications looked at are the recovery of organic components from solvent laden gas streams and the separation of organic volatiles from aqueous waste waters via pervaporation. Technical solutions, the advantages and disadvantages of the processes and. where possible, cost estimations will be presented.

• PNF and Movement
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• v.9 no.2
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• pp.39-44
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• 2011

Purpose : This study was aimed to examine the Influence of PNF indirect treatment for frozen shoulder patient Methods : Frozen shoulder patient was measured range of motion test of shoulder joint, visual analog scale(VAS) for pain and clean up the mirror activity at pre intervention and post-intervention in 2 weeks. Results : The ROM, activities of shoulder were increased and decreased VAS point for pain after treatments. Conclusion : We found that PNF indirect treatment could improve ROM and functions of shoulder and pain for frozen shoulder patient.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.397.1-397.1
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• 2002

A human immune globulin preparation (histobulin\ulcorner) are made to bind a small amount of histamine (0.15 $\mu$g) to the protein (12 mg) to increase the resistance of histamine susceptibility in the treatment of allergic diseases. Strict control of histamine content of the drug are required since intake of histamine might result in hypo- or hypertension. headache. or anaphylactic shock syndromes. HPLC analytical method with pre-column fluorescent derivatizalion after clean-up by solid-phase extraction (SPE) was developed. (omitted)

• Transactions of the Korean hydrogen and new energy society
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• v.22 no.1
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• pp.13-20
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• 2011

$SO_2$ has been absorbed and separated selectively by an ionic liquid from $SO_2/O_2$ mixture decomposed from sulfuric acid during the thermochemical SI cycle for the water splitting. In order to design and operate high pressure $SO_2/O_2$ separation system, the solubility of $SO_2$ in [EMIm]$EtSO_4$ (1-ethyl-3-methylimidazolium ethylsulfate) has been measured by Magnetic Suspension Balance at high pressure and temperature. Based on the measured solubility, a pressurized separation system was set up and operated. 194 L/h of $SO_2$($SO_2:O_2$=0.65:1) has been separated with 99.85% of $O_2$ at the vent of absorption tower, which is 22.7% of the theoretically ideal capacity of the system. This discrepancy results from the reduced contact between the gaseous $SO_2$ and the ionic liquid. Increased $SO_2$ supply, scale-up of the absorption column, and a faster ionic liquid circulation speed were suggested to improve the separation capacity.