• Proceedings of the KSRS Conference
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• 1998.09a
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• pp.409-414
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• 1998

To examine the detectability of the aerosol and/or Yellow dust from China crossing over the Yellow sea, three works carried out as follows , Firstly, a comparison was made of the visible(VIS), water vapor(WV), and Infrared(IR) images of the GMS-5 and NOAA/AVHRR on the cases of yellow sand event over Korea. Secondly, the spectral radiance and reflectance(%) was observed during the yellow sand phenomena on April, 1998 in Seoul using the GER-2600 spectroradiometer, which observed the reflected radiance from 350 to 2500 nm in the atmosphere. We selected the optimum wavelength for detecting of the yellow sand from this observation, considering the effects of atmospheric absorption. Finally, the atmospheric radiance emerging from the LOWTRAN-7 radiative transfer model was simulated with and without yellow sand, where we used the estimated aerosol column optical depth ($\tau$ 673 nm) in the Meteorological Research Institute and the d'Almeida's statistical atmospheric aerosol radiative characteristics. The image analysis showed that it was very difficult to detect the yellow sand region only by the image processing because the albedo characteristics of the sand vary irregularly according to the density, size, components and depth of the yellow sand clouds. We found that the 670-680 nm band was useful to simulate aerosol characteristics considering the absorption band from the radiance observation. We are now processing the simulation of atmospheric radiance distribution in the range of 400-900 nm. The purpose of this study is to present the preliminary results of the aerosol and/or Yellow dust detectability using the Ocean Scanning Multispectral Imager(OSMI), which will be mounted on KOMPSAT-1 as the ocean color monitoring sensor with the range of 400-900 nm wavelength.

• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.7
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• pp.127-144
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• 2003

Die Hedeutungen von drei Verben anregen, aufregen, erregen werden durch '흥분시키다' ohne Unterschied im Deutsch-Koreanisch $W\"{o}rterbuch{\;}erkl\"{a}rt$. Aber sie haben verschiedene Bedeutungen, was man durch einen Vergleich der Valenz feststellen kann und durch eine verschiedene $Bedeutungserkl\"{a}rung$ zu unterscheiden versuchen sollte. Die drei Verben haben die Argumentenkombination 'Origo + $Vorgangstr\"{a}ger$' gemeinsam. Aber erregen muss noch in 2 Sememe eingeteilt werden: erregen 1. '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 홍분상태에 빠뜨리다) erregen 2. '무엇이 누구를 성적으로 또는 기쁘게 흥분시키다'(즐거운 흥분상태에 빠뜨리다) erregen 2. muss wiederum in 2 Eedeutungsvarianten aufgeteilt werden: erregen 2.1. '성적인 흥분상태에 빠뜨리다' erregen 2.2. '성적인 흥분은 아니지만, 기쁜 흥분상태에 빠뜨리다' erregen 2.1. und erregen 2.2. werden voneinander unterschieden durch die verschiedene semantische Klasse der $Mominativerg\"{a}nzung$: 'Sexueller Anblick' erscheint fur die semantische Klasse der $Nominativerg\"{a}nzung$ von erregen 2.1.. 'Musik' erscheint fur die semantische Klasse der $Nominativerg\"{a}inzung$ von erregen 2.2.. erregen 1. und aufregen mit negativer Konnotation werden synonymisch verwendet: erregen 1. '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 흥분상태에 빠뜨리다) aufregen '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 흥분상태에 빠뜨리다) Aber die semantische Klasse $f\"{u}r$ die $Akkusativerg\"{a}nzung$ scheint anders zu sein: 'Mensch odor das $Gem\"{u}t$ eines Menschen' $k\"{o}nnen$ erscheinen $f\"{u}r$ die $Akkusativerg\"{a}nzung$ von erregen 1., $w\"{a}hrend$ nur 'Mensch' $f\"{u}r$ die $Akkusativerg\"{a}nzung$ von aufregen erscheint. Man sollte die Bedeutung und die syntaktische Valenz von anregen anders $erkl\"{a}ren$, je nachdem ein Mensch odor eine $T\"{a}tigkeit$ des $Menschenk\"{o}rpers$ als $Akkusativerg\"{a}nzung$ auftritt: j-n : Kaffee regt(mic) an. '커피가 나를 흥분시키다' Absraktum : das Medikament regt die Verdauung an '약이 소화를 자극하다/촉진하다/북돋우다' Die $Akkusativerg\"{a}nzung$ mit der semantischen Klasse 'Mensch' ist fakultativ weglassbar, $w\"{a}hrend$ sie mit dem Klassem $'T\"{a}tigkeit{\;}des{\;}Menschenk\"{o}rpers'$ obligatorisch ist.

• Journal of Veterinary Clinics
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• v.17 no.2
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• pp.349-358
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• 2000

Effects of repeated administration of diminazene aceturate (Hoechst Veterin r GmbH. Ger- many) that has been introduced as effective compound against Babesiosis and trppanosomiasis were investigated in dogs experimentally infacted with Babesia gibsoni. Adull mongrel dogs of both sexes were inoculated will nonpreserved infected blood and then maintained chronic anemia. A single dose of diminazene aceturate of 7mg/kg b.w. was administrated intramnuscularIy on day 7.1 arid ,7. Clin- ical and hcmatological findings following inoculation and medication were observed and 7enlm bio chemical analysis also was monitored. Parasitemia was detected between 3 and 6 days after inoculation. The rate of parasitized erythrocytes,1 in peripheral blood reached the peak on the 13th day and was maintained the percentage of 0.1 to 1.0 until the medication of diminazene aceturate. RBC was significantly (p<0.01) decreased on the 3rd day and then kept on decreasing. The lowest value was observed on the 16th day. WBC remained generally within normal ranges. PCV revea1ed the sig-nificant (p<0.01) decrease within the range of 24-27% and platelet was significantly (p<0.05) decreased during the period. Senum chemical values (ALT, AST. total bilirubin. LDH BUN, area- tinine, total protein. albumin and glucose) were within normal ranges during the experimental period. Serum CPK values were significantly (p<0.01) increased on the 3rd day. There was no clinically, sig-nificant difference in a single dose of diminazene aceturate of 7 mg/kg b.w. But the administration of diminazene aceturate of 14 mg/kg b.w. revealed vomiting and anorexia and one dog died in 30 hours after administration. The administration of 14mg/kg b.w. resulted in vomiting, salivation, actor- exia, tremor of head and involuntary movement and one dog died in 27 hours after administration. WBC, RBC, PCV and Platelet values were no significant difference and hematological findings revealed persistent anemia and thrombocytopenia during chronic anemia after inoculation. AST activity its was significantly (p<0.01) increased 11\\`from 3 days after medication and AST activity was on the same trend. Serum CPK activity revealed significant (p<0.01) increase within 6 hors)\\`s after every administration and decreased in 48 howl·s after administration.

• Journal of Embryo Transfer
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• v.18 no.3
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• pp.263-267
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• 2003

This study was carried out to test the efficacy of pharmacological inhibitors of the cell cycle transition in keeping bovine oocytes at the germinal vesicle(GV) stage and the reversibility of this inhibition. Bovine oocytes were incubated for 22∼24 hrs in the presence of various inhibitors : cycloheximide (2$\mu\textrm{g}$/$m\ell$), 6-DMAP (2 mM), and roscovitine (50$\mu$M). Bovine oocytes cultured with any of the inhibitors were significantly blocked at the GV stage. Reversibility of pharmacological inhibitors was assessed by culturing oocytes an additional 22∼24 hours in inhibitor-free medium. Examination of oocytes revealed that the inhibitory effect was fully reversible and effect of resuming meiotic progression on nuclear maturation varied according to the various inhibitors. This study suggests that cycloheximide, 6-DMAP and roscovitine can be applied to control meiotic arrest and resumption in maturation culture of bovine oocytes in vitro. More investigations are needed to better understand how the cell cycle of oocyte is blocked without problems to future developmental competence.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.66 no.12
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• pp.1905-1912
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• 2017

In recent years, Ulaanbaatar, a capital of Mongolia has witnessed major problem that air quality reaches hazardous level during the winter season. Coal combustion for heating of every house in "Ger" district is main reason. One way to reduce the air pollution is mass usage of electric heater. However, there are several difficulties such as overload and degradation of transformers and other equipment used in distribution and transmission systems as well as power shortage occurrence in evening peak period due to residential consumption. This study aims to contribute for solving the air pollution and power shortage problem in Mongolia. One possible solution could be distributed generation (DG) with photovoltaic (PV) penetration. In this study, PV with energy storage (ES) hybrid system to reduce peak load is analyzed. We proposed the suitable structure of PV-ES hybrid for Mongolian household, and suggested several operation scenarios. Optimal operation algorithm is carried out based on a comparison aspect from economical, grid impact and PV penetration possibility. The economic analyse shows annual income of 520USD, and has a payback period of 8 years for selected scenario. The proposed PV-ES system structure is verified by experimentation set on the building rooftop in city center. The suggested scenario is planned to apply for system in further research.

• Asian Journal of Turfgrass Science
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• v.9 no.3
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• pp.253-260
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• 1995

This study is aimed to understand the effects of temperature, light and GA soaking treatment on the seed germination of perennial ryegrass 'Dandy', creeping hentgrass 'Penlinks', tall fescue 'Arid' and Kentucky hluegrass 'Nasaw'. These experiments are carried in vitro, and their results obtained are summarized as the followings ; The optimum temperature for seed germination of perennial ryegrass 'Dandy' was found to he ranged at 20~30$^{\circ}C$, and the optimum temperature for germination of creeping bentgrass 'Penlinks', tall fescue 'Arid' and kentucky bluegrass 'Nasaw' seeds was found to be ranged at 20~25$^{\circ}C$, whereas the germination percentage under the below or above temperature of this range decreased. The germination of perennial ryegrass 'Dandy' and tall fescue 'Arid' seeds showed no effect on light, and while the germination percentage of creeping hentgrass 'Penlinks' increased more highly under the dark condition than under the light condition. The germination percentage decreased according to the higher temperature. The germination of Kentucky bluegrass 'Nasaw' seeds increased more highly under the dark condition than under the light condition at 20~25$^{\circ}C$, whereas the germination percentage under the dark condition at 15$^{\circ}C$ and 30$^{\circ}C$ decreased. In case of GA soaking treatment of seeds, all the cool season turfgrasses tested showed their own promoting effects on seed germination. The early germination of tall fescue 'Arid' was good without the soaking times. Creeping bentgrass 'Penlinks' and perennial ryegrass 'Dandy' had re-spectively the highest germination percentage at 10min and 1hr soaking treatment, and the longer the soaking time, the lesser the germination percentage. Kentucky bluegrass 'Nasaw' obtained the best results at 24has soaking treatment, and the longer the soaking time, the better the ger-mination percentage.

• Journal of Environmental Health Sciences
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• v.47 no.3
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• pp.205-226
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• 2021

Objectives: Biomonitoring programs have been widely implemented in the field of environmental health, both in Korea and worldwide. Recently, it has been suggested that the storage, management, and utilization of biosamples collected from biomonitoring programs should be organized based on a biobank system. Therefore, we attempted to review the current status of representative biomonitoring programs and biobank systems that have been implemented in Korea and in other countries. Methods: We searched for bio-samples collected in domestic and foreign biomonitoring programs and their applications. For this, we referred to research papers, homepages hosted by biomonitoring programs, and project reports. We also checked information for biobanks related with biomonitoring programs, including the operating systems, facilities, technologies, and regulations of biobanks. Results: We summarized six domestic and 32 foreign biomonitoring programs. These biomonitoring programs collected bio-samples to determine the relationship between environmental chemicals and diseases. Domestically, bio-samples from KoNEHS, KorSEP, MOCEH, KoCHENS, and KorEHS-C were stored at -80℃ in a deep freezer at the National Institute of Environmental Research, while KNHANES samples were stored at Korea Biobank, which has a stabilized biobanking system with a well-established database. Nine foreign biomonitoring programs (JECS, China-NHBP, CKB, CHMS, NHANES, GerES, Germaan ESB, MoBa, and UK Biobank) were ongoing for large populations. Among them, CKB, GermanESB, and UK biobank have been maintained for at least 10 years with their own biomonitoring programs as well as advanced systems for the safe storage of bio-samples. Conclusion: Currently on-going biobanks have devoted considerable efforts to managing bio-samples for public purposes. The preceding domestic and foreign biomonitoring programs and biobanks will be great references for constructing biobank facilities and systems for environmental public health in Korea in the future.

• Parasites, Hosts and Diseases
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• v.59 no.4
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• pp.377-392
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• 2021

This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was ${\hat{S}}(R)={37e^{-(0.28R)}}^2$. The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chig-ger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographi-cal regions with large host samples are recommended in the investigations of chigger mites.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.7 no.1
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• pp.8-15
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• 2004

Purpose: This study was conducted to identify potential dangers involved in procedure and evaluate complications of percutaneous endoscopic gastrostomy (PEG) comparing to surgical gastrostomy (SG). Methods: A retrospective study of 66 children with feeding gastrostomy between 1994 and 2002 was done. Results: Of 66 children, 23 (mean age 29 months) had PEG and 43 (mean age 49 months) had SG. 31 cases of SG group had fundoplication for gastroesophageal reflux disease. PEG groups were followed up with an average 13 months and SG groups with 21 months. Major complications occurred in 33% of PEG group (8/23) and 55% of SG group (24/43). Major complications were significantly lower in PEG group than SG group and minor complications, too (p<0.05). Of major complications, aspiration pneumonia was the most common but paralytic ileus was significantly higher in SG group than PEG group. 8 patients died of underlying disease but not related to gastrostomy. Removals of stomata were done in 5 of PEG group and 3 of SG group. GER recurred in 25% of SG group with fundoplication and newly developed in 17% of SG group. GER persisted in 17% and newly developed in 5% of PEG group. Conclusion: The gastrostomy was a significant procedure with the potential to produce complications. PEG is recommended as an initial procedure in children requiring a feeding gastrostomy but should be considered a major undertaking.

• Journal of Life Science
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• v.23 no.5
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• pp.698-702
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• 2013

It is known that black sticky rice with giant embryo (BSRGB, Milyang 263) and giant embryo rice (GER) contains higher levels of GABA than rice. Therefore, feeding BSRGB, GER, or rice freely to C57BL/6 mice with two-hour alcohol intake for 16 days was investigated. For two-hour alcohol intake, a repeated measure ANOVA (three treatment groups repeated across 16 days; 8 two-day blocks) yielded a significant group by block interaction (df=16, F=3.109, p=0.004). The independent t-test showed that significant suppression of two-hour alcohol intake was observed when subjects were administered with BSRGB, compared with the rice alone across all the two-day blocks (p<0.05). The paired t-test revealed that a significant suppression of two-hour alcohol intake was observed starting 4 to 16 days after freely feeding with BSRGB compared to before feeding. However, there is no significant difference in the two-hour alcohol intake observed between the before and after administration of rice. A repeated measure ANOVA revealed no significant group by block interaction for 22-hour water intake and body weight. However, a repeated measure ANOVA revealed a significant grouping by block interaction for food intake. These results indicate a change of two-hour alcohol intake is presumably caused by GABA, which is found in higher levels in BSRGB than in rice.