• Korean Journal of Food Science and Technology
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• v.46 no.2
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• pp.205-212
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• 2014

This study was designed to investigate the antioxidant activities (ORAC value, DPPH and ABTS radical scavenging activity, FRAP activity, and reducing power) and nitrite scavenging activities of Acanthopanax senticosus extracts fermented with the mycelia of three different mushroom species: Ganoderma lucidum, Phellinus linteus, and Hericium erinaceus. The highest total phenol content (42.09 GAE mg/g) and ORAC value ($74,912{\mu}M$ TE/g) were observed in a hot water extract of A. senticosus fermented with G. lucidum. The highest DPPH radical and nitrite scavenging activities were observed in a 70% ethanol extract of A. senticosus fermented with G. lucidum. In addition, ABTS radical scavenging activity (8-88%), FRAP activity (0.1-0.2), and reducing power (0.3-0.7) were increased by ethanol addition in all samples in a dose-dependent manner. These results provide a basic understanding of the antioxidant and nitrite-scavenging activities of A. senticosus extracts fermented with different mushroom mycelia.

• Economic and Environmental Geology
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• v.25 no.3
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• pp.317-336
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• 1992

The garden soils, main road dusts, residential road dusts, and playground soils/dusts of Seoul, Geumsan, Onsan, and Taebaek areas were analyzed in order to investigate the level of heavy metal pollution by urbanization and industrialization. The soil pH is in the range of 5.48~8.40 and was generally neutral. The color of soils and dusts is mainly Raw Umber to dark greyish Raw Umber. Some samples from Taebaek city, a coal mining area, showed a deep black color due to contamination by coal dusts. Major minerals of the dusts and soils are quartz, feldspars, and micas, reflecting the composition of the parent rocks. However, pyrite was found as a major mineral in the samples of industrial road dusts of Onsan, a smelting area, and resicential road dusts of Taebaek. Thus, the high level of heavy metals in mining and smelting areas can be explained with the sulfide minerals. The mode of occurences of heavy metals in Seoul, a comprehensive urbanized area, were related to the metallic pollutants and organic materials through observation by scanning eletron microscopy. In main road and residential road dusts of Onsan area, Cd, Zn, and Cu were extremely high. Some industrial road and residential road dusts of Seoul area showed high Cu, Zn, and Pb contents, wereas some garden soils and residential road dusts of Taebaek area were high in As content. In general, the heavy metal contents in dust samples were two to three times higher than those in soil samples. Main road dust samples were the most reflective from the discriminant analysis of multi-element data. Cadmium, Sb, and Se in Onsan area, As in Taebaek area, Pb and Te in Seoul area were most characteristic in discriminating the studied areas. Therefore, Cd in smelting areas, As in coal mining areas, and Pb in metropolitan areas can be suggested as the characteristic elements of each pollution pattern. The dispersion of heavy metal elements in urban areas tends to orignate in main roads and deposit in garden soils through the atmosphere and residential roads. The heavy metal contamination in Seoul is characteristic in areas with high population, factory, road, and traffic decsities. Heavy metal contents are high in the vicinity of smelters in Onsan area and are decayed to background levels from one kilometer away from the smelters.

• Journal of Animal Science and Technology
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• v.50 no.2
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• pp.151-156
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• 2008

The study aimed to estimate genetic parameters of body weights in Hanwoo steers using random regression model and compare it with single trait animal model. A total of 1,372 Hanwoo steers that belonged to progeny testing program of the Hanwoo Genetic Improvement conducted at the Livestock Improvement Main Center of the National Agricultural Cooperative Federation (LIMC-NACF) in Rep. of Korea were used. Results of the random regression model fitting quadratic function revealed heritability values from 0.17 to 0.30 for the whole testing days up to 800 days. The results of the animal model showed estimated heritability values ranged from 0.24 to 0.36. Estimates of permanent environmental correlations tended to increase with increasing test in days. Unlike in the direct genetic correlation that at early stage the estimate was slightly negative it was 0.30 then increased to approach unity at later stage of test. Comparing the results between random regression model and the animal model showed not much differences and both followed similar pattern and therefore the use of random regression model for the national genetic evaluation of Hanwoo could be implemented.

• Journal of Food Hygiene and Safety
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• v.22 no.1
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• pp.45-51
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• 2007

The Collected 70 samples from 5 sandwich shops were analysed for the pathogenic bacteria such as Escherichia coli O157:H7, Salmonella spp., Listeria monocytogenes, and Staphylococcus aureus. As a result of Listeria monocytogenes and Saphylococcus aureus were detected in 1 sample, 11 samples, respectively. However, Escherichia coli O157:H7 and Salmonella spp. were not detected in anywhere. The antibiotics test of isolated bacteria was pelformed by the disk diffusion method from NCCLS. The resistance rate of Listeria monocytogenes isolates was confirmed 38.5% to 10 species such as Am, B, P, and Va for antibiotics of 26 species. MRSA was determinated 4 strains in S. aureus isolates. The resistance pattern of Staphylococcus aureus isolates were confirmed 36.4% to P Am OX B K E CXM, 18.2% to P Am B K E CXM B, 9.1% to P Am B K, 27.3% to P Am B, and 9.1% to Te B Nb. Therefore, continuous surveillance and monitoring for antibiotic resistance strains are demanded for prevention of increases in multiple antibiotic resistance strains.

• The Korean Journal of Food And Nutrition
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• v.28 no.6
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• pp.1098-1106
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• 2015

This study aimed to investigate antioxidant activities from 11 forest plants, and determine their total phenolics, flavonoids and proantocyanidins contents. In addition, the antioxidant activities were correlated with antioxidant compounds. Among the samples, Cornus officinalis, Castanea crenata, Lindera erythrocarpa, Carpinus laxiflora and Pourthiaea villosa showed significantly higher 2,2-diphenyl-1-picrylhydrazyl (DPPH) ($IC_{50}=21.12{\sim}28.93{\mu}g/mL$) and 2,2'-azino-bis(3-ethylbenzothia zoline-6-sulfonic acid) (ABTS) ($IC_{50}=28.18{\sim}52.55{\mu}g/mL$) radical scavenging ability with reducing power ($IC_{50}=59.91{\sim}93.64{\mu}g/mL$) than other plants; and C. crenata, L. erythrocarpa and Rubus coreanus showed strong nitric oxide (NO) inhibition activity (${\geq}60%$). In addition, L. erythrocarpa, C. laxiflora and P. villosa showed higher oxygen radical absorbance capacity (ORAC) values (${\geq}1,100{\mu}M$ TE/g sample) than other samples. High total phenolic contents were observed in C. crenata (429.11 mg GAE/g), L. erythrocarpa (437.11 mg GAE/g), C. laxiflora (408.67 mg GAE/g) and P. villosa (404.11 mg GAE/g). The DPPH and ABTS radical scavenging activity with reducing power were significantly correlated with total phenolic contents ($R^2=0.71{\sim}0.79$), but total phenolic contents were not correlated with NO inhibition and ORAC ($R^2=0.35{\sim}0.43$). Therefore, these results suggested that C. officinalis, C. crenata, L. erythrocarpa, C. laxiflora and P. villosa are potential natural antioxidative candidate ingredients.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.10 no.2
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• pp.125-135
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• 1977

Recently, culture of Undaria pinnatifida, one of the representative esculent sea weed, has been prevailing in tile east and south coasta of Korea and reached the mass culture stage. In this study, compositional quality factors for food were studied and the contributory effects of blanching and pigment fixatives in the quality retention of cultured Undaria pinnatifida are discussed. When the place and time of harvesting were the same, cultured pinnatifida showed scarce difference in the chemical composition comparing to tile naturally grown Undaria pinnatifida, but cultured Undaria pinnatifida shelved a considerable difference depending upon the cultured places. In the chemical composition of Undaria pinnatifida, the alginic acid comprising about $40\%$ of the whole solid materials seemed to be responsible for the compositional puality. The chlorophyll and carotenoid content of the clutured Unaria pinnatifida were considerably lower than that of the naturally grown Undaria pinnatifida and wass inferior in puality by color to the naturally grown one. Dried Undaria pinnatifida contained a considerable amount of amino-N, mannitol, and soluble minerals and it is considered that these components play a great role in the relish effects. It could also be evaluated as a good albuminous source for food science the dried pinnatifida contains about $18\%$ of crude protein. In the analysis of free amino acid composition of dried Undaria pinnatifida, the naturally growm samples showed so what higher levels in all amino acid content than the cultured samples. The contents of theronine, alanine, and glutamic acid were major in quantity wherease histidine cysteine, tyrosine, and phenylalanine were minor. The contents of such amino acids like serine and proline were particularly low or undetectable. The results of amino acid analysis of the acid hydrolysates of dried Undaria pinnatifida in quantity of individual amino acid showed te same pattern as that of free amino acid. It is noticed that Undaria pinnatifida seemed to contain good quality protein since the contents of essential amino acids were considerably higher and uniform. By blanching the fresh sample, the water soluble components brought about cousiderable loss, and, particularly, it was noteworthy that both mannitol and soluble minerals apparently decreased. In the pigment analysis of the dried sample, blanching was effective to retain chlorophyll and carotenoid. The addition of pigment fixatives in blanching solution such as Ca-gluconate, Ca-carbonate, and Ca-hydroxide did not exhibit much effect on the pigment retention except that Ca-carbonate shelved some effect only in the early stage of storage.

• Korean Journal of Social Welfare
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• v.58 no.2
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• pp.33-56
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• 2006

Primary care takers, especially older parents, who live with and care for an adult child with mental illness struggle with the dilemma of who will provide for their child's social and emotional needs and physical care requirements when they can no longer care so. Therefore, 'Permanency plan(financial, residential, legal plan)' is very important for social integration and normalization of mental illness adults. This study aims to introduce the mental health systems in New Zealand and to investigate the permanency plan strategies(benefit, supplements, and the laws) of the government and community support services of NGOs through the interviews with team leaders of representative NGO, Te Korowai Aroha. Permanency plan strategies of New Zealand Government and NGOs are as follows. 1) Financial plans for adults with mental illness include main benefit(invalid benefit), various allowances(family allowance and disability allowance), and wage subsidies for employment. 2) The Government provide accommodation supplement and re-establishment grant for residential plan. And NGOs have supported accommodation program to provide support and accommodation that are important for social integration. 3) Adult mental illness is provided the support of welfare guardian and property manager under the Protection of Personal and Property Rights Act. According the results, this study concluded that social services for the mental illness which secure supported accommodation and benefits is strongly needed. At the same time, mental health delivery system is needed to make distinction between social services and clinical services.

• Publications of The Korean Astronomical Society
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• v.24 no.1
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• pp.53-64
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• 2009

MIRIS is the main payload of the STSAT-3 (Science and Technology Satellite 3) and the first infrared space telescope for astronomical observation in Korea. MIRIS space observation camera (SOC) covers the observation wavelength from $0.9{\mu}m$ to $2.0{\mu}m$ with a wide field of view $3.67^{\circ}\times3.67^{\circ}$. The PICNIC HgCdTe detector in a cold box is cooled down below 100K by a micro Stirling cooler of which cooling capacity is 220mW at 77K. MIRIS SOC adopts passive cooling technique to chill the telescope below 200 K by pointing to the deep space (3K). The cooling mechanism employs a radiator, a Winston cone baffle, a thermal shield, MLI (Multi Layer Insulation) of 30 layers, and GFRP (Glass Fiber Reinforced Plastic) pipe support in the system. Optomechanical analysis was made in order to estimate and compensate possible stresses from the thermal contraction of mounting parts at cryogenic temperatures. Finite Element Analysis (FEA) of mechanical structure was also conducted to ensure safety and stability in launching environments and in orbit. MIRIS SOC will mainly perform Galactic plane survey with narrow band filters (Pa $\alpha$ and Pa $\alpha$ continuum) and CIB (Cosmic Infrared Background) observation with wide band filters (I and H) driven by a cryogenic stepping motor.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.29 no.8
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• pp.489-493
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• 2016

In this study, the effect of vanadium oxide ($V_2O_5$) content and pre-sintering atmosphere on sealing property of glass frit that consisted of $V_2O_5-BaO-ZnO-P_2O_5-TeO_2-CuO-Fe_2O_3-SeO_2$ was investigated by XPS (X-ray photoelectron spectroscopy). The content of V2O5 was changed to 15, 30, and 45 mol%, and the pre-sintering was carried out in air and $N_2$ condition, respectively. XPS analysis conducted before and after laser irradiation with identical sample. Before laser treatment, glass frits that were pre-sintered at air condition showed both $V^{4+}$ and $V^{5+}$, but the valence state was changed to $V^{5+}$ after laser irradiation when the glass frits contained 30 and 45 mol% $V_2O_5$; this change led to non-adhesive property. On the other hand, glass frits that were pre-sintered at $N_2$ condition exhibited only $V^{4+}$ and it showed fine adhesion irrespective of the $V_2O_5$ content. As a result, the existence of $V^{4+}$ seems to be a major factor for controlling the adhesive property of glass frit for laser sealing.

• Korean Journal of Acupuncture
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• v.22 no.2
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• pp.1-8
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• 2005

Objective: To inform of the 4th WHO informal consultation meeting on the development of international standard acupuncture points locations, held in Daejeon, Korea, on April $23{\sim}26$, 2005. Results and Conclusions: 12 experts from Korea, China and Japan discussed the locations of 18 controversial points that were not agreed at the previous meeting, and 16 non-controversial points that all 3 nations agreed on the locations but still needed more discussion for their expressions, as well as other non-controversial points that were agreed on both the locations and the expressions but were suggested by Chinese party to be discussed again. Also, the guidelines for English translation of the standard acupuncture points locations and the development of the standard acupuncture points charts, diagrams, and dolls were discussed in this meeting. Through this meeting the locations of ST30, SP11, SP12, TE18, GB9, GB10, LR4, LR5, LR6, BL6, BL7, BL9, GB19 were agreed, but it was suggested that more research would be needed for the locations of LI20, GV26, PC8, PC9, LR7, GB30, LR12, and the expressions of ST36, ST38, ST39, BL1. Due to the time limitation, 16 acupuncture points out of those Chinese party suggested to have more discussion about were not discussed at this meeting and remained to be discussed at the next meeting.