• Journal of Astronomy and Space Sciences
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• v.32 no.2
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• pp.161-166
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• 2015

Analysis of lunar samples returned by the US Apollo missions revealed that the lunar highlands consist of anorthosite, plagioclase, pyroxene, and olivine; also, the lunar maria are composed of materials such as basalt and ilmenite. More recently, the remote sensing approach has enabled reduction of the time required to investigate the entire lunar surface, compared to the approach of returning samples. Moreover, remote sensing has also made it possible to determine the existence of specific minerals and to examine wide areas. In this paper, an investigation was performed on the reflectance distribution and its trend. The results were applied to the example of the double ray stretched in parallel lines from the Tycho crater to the third-quadrant of Mare Nubium. Basic research and background information for the investigation of lunar surface characteristics is also presented. For this research, resources aboard the SELenological and ENgineering Explorer (SELENE), a Japanese lunar probe, were used. These included the Multiband Imager (MI) in the Lunar Imager/Spectrometer (LISM). The data of these instruments were edited through the toolkit, an image editing and analysis tool, Exelis Visual Information Solution (ENVI).

• The Transactions of the Korea Information Processing Society
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• v.7 no.8
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• pp.2411-2420
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• 2000

Far detecting variaus camputer intrusians effectively, many researches have develaped the misuse based intrusian detectian systems. Recently, warks related ta anamaly detectian, which have impraved the drawback .of misuse detectian technique, have been under focus. In this paper, a new clustering algarithm based an support constraint far generating user's narmal activity patterns in the anamaly detectian can praposed. It can grant a user's activity .observed recently ta mare weight than that .observed in the past. In order that a user's anamaly can be analyzed in variaus angles, a user's activity is classified by many measures, and far each .of them user's narmal patterns can be generated. by using the proposed algarithm. As a result, using generated narmal patterns, user's anamaly can be detected easily and effectively.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.4
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• pp.440-445
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• 2000

Thirty lactating Javanese thin-tail ewes (12 ewes had been injected, prior to mating, with 700 IU pregnant mare serum gonadotropin, and 18 ewes with saline as a control) were used to evaluate the effect of superovulation on milk production during lactation and mammary chemical indices at the end of lactation. Thirteen ewes (9 control and 4 superovulated ewes) were fed at low and the other 17 ewes (9 control and 8 superovulated ewes) were fed at high quality ration. Superovulated ewes, either fed at low or high quality ration, had dramatically higher milk yields (57%). At the end of lactation, superovulated ewes had higher mammary dry fat-free tissue, mammary DNA concentration, total mammary DNA and RNA contents than nonsuperovulated ewes. Superovulation did not affect mammary RNA and collagen concentrations, and total collagen content. Ration quality did not significantly increase milk production during lactation and mammary chemical indices at the end of lactation. The observed increase in milk production in the superovulated ewes was probably due to the increased mammary secretory cell number and their synthetic activities during lactation as a result of the increased endogenous hormonal stimulation of mammary growth and development during pregnancy.

• Korean Journal of Veterinary Research
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• v.50 no.3
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• pp.231-237
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• 2010

This study was conducted to investigate characteristics and antimicrobial susceptibility of Escherichia (E.) coli isolates isolated from vaginal mucosa and clitorial fossa of 105 Thoroughbred mares suspicious of the genital disease in Korea during the period from March 2006 to July 2007. Ninety six E. coli isolates were identified as standard biochemical properties and using BIOLOG system. Fifty three isolates (55.2%) could be classified into a total of 21 O serotypes and forty three isolates (44.8%) were non-typeable with 51 O antisera used in this study. The verotoxin 1 (VT 1) and verotoxin 2 genes were analyzed by multiplex PCR. Among them, one isolate was detected VT 1 gene (130 bp). Most of isolates showed a high susceptibility in ciprofloxacin (100%), enrofloxacin (100%), norfloxacin (100%), cefoxitin (96.9%), gentamicin (96.9%), sulphamethoxazole (96.9%), nitrofurantoin (94.8%), amikacin (93.8%), nalidixic acid (92.7%) and tetracycline (90.6%). These results may provide the basic information to establish strategies for the treatment and prevention of reproductive disease in Thoroughbred mares in Korea.

• Publications of The Korean Astronomical Society
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• v.21 no.1
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• pp.11-20
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• 2006

We carried out a follow-up study on the students who participated in International Astronomy Olympiad(IAO). We surveyed home and school environment, personal characteristics with regard to four high school student and five college students who participated in IAO from 2002 to 2005. In the home environment variable of science elite students who took part in the IAO, we found out significant corelation between science elites and their parent's educational career. In their personal characteristics, we found out considerably their motivation capacity, intelligent curiosity, flexible and creative thinking ability. This study illuminated that the experience of IAO participation offered the opportunity for the students to gain mare self-esteem and positive confidence on scientific study. The IAO experience is construed to effect greatly the students' future. Through the IAO experience, the participating students are expected to major in astronomy and become excellent astronomers in the future. We expect that the interest of student will increase greatly in the area of astronomy and it will contribute to the substantial development of Korean astronomy. In this respect, with the constant support to the IAO participants, the effort to cultivate outstanding astronomers and follow-up study on those participants of the IAO should be continued.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2006.11a
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• pp.489-492
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• 2006

In this study we collected and analyzed cases where typhoons damaged coastal structures in Korea in the past 6 years, and hydraulic model tests were conducted in 2D flume. 2 areas where damage was concentrated were selected from ports that had suffered damage. The selected area was Kyungsang-namdo, where there are a total of 26 national ports. Damage to these two areas was organized by wind direction of the typhoons and the direction of the entrance of the port, and destruction patterns were analyzed. 2D hydraulic model tests were conducted of Deabyeun port, one of the damaged areas. Results were as follows: 1. As a result of survey, ports that had entrances that were open to winddirection of typhoon (Anti-clockwise direction) tended to be damaged mare, whereas ports that blocked by island and ports that were not open to wind direction of typhoon were not damaged. 2. As a result of the tests, there was damage that occurred when using the section of designed section, whereas there was no damage when the TTP weight was increased.

• Korean Journal of Animal Reproduction
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• v.7 no.1
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• pp.15-18
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• 1983

As a preliminary experiment to establish the process of embryo transfer in rabbit, present sutdies were carried out with 75 mature Japanese of ovary to pregnant mare's serum gonadotropin(PMSG) and human chorionic gonadotropin(hCG) and collection rate of embryos at various times after hCG injection. Female rabbits were superovulated using 50∼100IU hCG or 75∼100IU PMSG and 50∼751IU hCG injected 83hrs apart. The results obtained were as follows: 1. The average number of growth follicles obtained from all of rabbits treated with hCG or PMSG-hCG was 28.1. PMSG-hCG treatment group (30.9) was clearly increased more than hCG treatment group (16.7). 2. In ovulation score, PMSG-hCG treatment group (21.0) was increased more than hCG treatment group (7.9), showing the same trends in the growth of follicles. 3. The ovulation rate per follicles developed was higher in the rabbits treated with 100 IU PMSG and 75 IU hCG (18.9%) than that from the other groups. 4. The oviduct score (72.9%) was inclined to higher than that from uteri (57.1%) in score of embryo collection.

• Journal of Korean Society of Transportation
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• v.28 no.1
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• pp.125-134
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• 2010

It is occurred bus arrival time errors when a bus arrives at a bus stop because of a variety of traffic condition such as traffic signal cycle, the time to get on and off a bus, a bus-only lane and so on. In this paper, bus delay time which is occurred as the result of traffic condition was estimated with Markov Chain process and bus arrival time at each bus stop was predicted with it. As the result of the study, it is confirmed to improve accuracy than the method of bus arrival time prediction with existing method (weighed moving average method) in case predicting bus arrival time using 7 by 7 and 9 by 9 matrixes.

• Clinical and Experimental Reproductive Medicine
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• v.20 no.1
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• pp.19-29
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• 1993

Plasminogen activator (PA)-plasmin system in follicular fluid is involved in the process leading to follicular rupture at ovulation. It is well known that PA is closely associated with cellular differentiation and tissue remodeling on evidences from the study of normal and malignant tissues. This study was designed to ascertain a potential role of PA in the ovarian folliculogenesis. Immature Sprague-Dawley rats were injected with pregnant mare serum gonadotropin, followed by injection of serine protease inhibitor (SPI; mixture of 1 mol/L benzamidine and 1 mol/L amino-caproic acid) into the unilateral ovarian bursa. In the control study, mechanical effect of bursal injection and contralateral ovarian effect SPI were ruled out. Total antral follicular areas relative to total ovarian cross-sectional areas was siginificantly lower in SPI-injected ovary than in saline-injected ovary. SPI injection decreased the relative antral follicular area by 33 % respectively. Electron microscopic finding of granulosa cell in the atretic follicle showed the presence of pyknotic nucleus, blurring of neucleolemma, degeneration of mitochondria and dilation of endoplasmic reticulum. After induction of ovulation with hCG, the number of oocytes released was significantly decreased in SPI-injected oviduct than in saline-injected oviduct. From above results, author discussed that PA may play a role not only in ovulation but also in some processes of folliculogenesis.

• Journal of Veterinary Clinics
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• v.39 no.6
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• pp.405-410
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• 2022

An 11-year-old thoroughbred post-partum broodmare presented with the symptoms of colic. The physical and clinical examinations indicated a large colon displacement or volvulus. Immediate surgical intervention was performed, and a strangulating large colon volvulus (LCV) was defined as a volvulus of >540° in the counterclockwise direction. After correcting and assessing the gut viability, approximately 80% of the entire large colon was resected and anastomosed using an end-to-end technique. With supportive care after surgery, the horse regained its appetite and vitality without significant clinical complications and was discharged on postoperative day 9. This report presents the first surgical correction using a large colon resection and anastomosis (LCRA) and the critical care for a strangulating LCV in a horse in Korea. This case enhances the current knowledge of clinical LCV and the related considerations for treatment.