• Journal of the Korea Computer Industry Society
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• v.7 no.4
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• pp.447-454
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• 2006

Imbecility, Parkinson's disease, the brain disease occurrence rate such as motor nerve disease are increasing rapidly since 1980 years, according to the Britain, the United States of America, Japan, Germany, result that investigate the spanish occurrence rate, was expose that imbecility mortality including Alzheimer's disease increased more than man case 3 triple and man and woman of brain disease mortality increases by about 50% with Parkinson's disease and motor nerve disease. <중략> first of all, courtesy call is important. So that can find out danger benevolence and occurrence danger at early stage, person arranged brain vein because examination does special Quality examination and modelling Tuesday embodying possible Cerebrovascular Ultrasonogram (brain vein supersonic waves) and prove excellency of performance from time to time. Is going to apply to brain disease patient of other disease if supplement system hereafter, and this research tried to study special quality that standardization is not producing poetic theme width directly and approach.

• Korean Journal of Plant Tissue Culture
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• v.22 no.5
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• pp.299-306
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• 1995

The objective of this study is to establish an efficient celll culture system for somatic embryogenesis in Ostericum koreanum and Angelica purpuraefolia. The highest frequency of embryogenic callus on immature seeds of O. konanum and A, purpuraefolia. was obtained when seeds were cultured on MS medium containing 0.1 mg/L 2,4-D and 0.1 mg/L BA. However somatic embryos were formed directly from the edge of cotyledon and hypocotyl of plant which regenerated on medium supplemented with 0.1-3.0 mg/L NAA. Immature seed explane cultured at 25$\pm$2$^{\circ}C$ after 10 days treatment at 5$^{\circ}C$ produced embryogenic callus and somatic embryos, and these differentiated into whole plane. Addition of glutamine and coconut milk to media did not enhance the frequency of somatic embryogenesis in immature seed cultures of A. purpuraefolia. However in immature seed culture of O. koreanum, the frequency of somatic embryogenesis were increased on media supplemented with glutamine and 10% coconut milk. Especially addition of glutamine to the medium substituted effect of NH$_4$N0$_3$ in constast to coconut milk. The highest frequency of conversion somatic embryos into plantlet was 89.1% on MS basal medium Embryogenic calli were grown vigorously when maintained on medium with 0.01 mg/L 2,4-D and 0.01 mg/L BA.

• Journal of Biomedical Engineering Research
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• v.20 no.5
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• pp.601-608
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• 1999

동맥의 일부분의 팽창하는 동맥류는 높은 사망률을 야기하는 혈관계 질환이다. 동맥류의 발생 및 파열에는 동맥류 내부의 혈류의 유동에 의한 혈관벽 전단 응력 및 압력이 주용한 원인 중 하나로 의심되고 있다. 복부대동맥류 내부의 혈류 유동 특성을 밝히기 위해서 동맥류의 최대 확장부가 복부동맥의 1.5배, 2배인 유리 모델을 제작하였다. 정상류 상태에서 다양한 레이놀즈수에 대해서 속도 및 난동도를 입자영상속도계를 이용하여 측정하였다. 경계층 박리로 인한 재순환 부분이 끝나는 재부착점은 동맥류 최대 확장부 후부에서 발생하였으며, 이 위치는 레이놀즈수의 변화에 따라 바뀌었다. 축방향 속도의 난동은 최대 확장부 후부에서 크게 나타났으며, 이 위치에서 난동에 의한 부가적 응력이 크며 혈관벽 구조변화가 발생하리라 예측된다. 동맥류 내부의 압력분포는 수치해석에 의해 계산되었다. 동맥류 내부 압력은 크기가 증가함에 따라 커졌으며 압력은 동맥류 최대 확장부 후부에서 발생하는 재부착점에서 최대값을 나타내었다. 동맥류 최대확장부 후부는 압력이 최대값을 가지며, 전단력의 변화 및 난동이 큰 지역이므로 동맥류의 파열이 발생하기 쉬운 지역으로 예측된다.

• Journal of Veterinary Clinics
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• v.17 no.2
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• pp.321-326
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• 2000

전라남도 진도군 내에서 사육되는 진돗개에서 발생한 유산의 일부가 Brucell canis 에 의하여 유발된 것임을 확인하였다. 이 연구에서는 먼저 1997년 7월에서 1998년 6월 사이에 발생한 진돗개의 유산을 설문조사로 확인하였던 바 발생률이 18.5%에 달했다. 이어서 설문조사에 포함된 지역에서 사육되는 진돗개를 대상으로 신시한 혈청학적 조사에서는 25%가 양성을 보였으며, 수캐의 양성률은 암캐의 거의 두 배에 달했다. 다음으로 균 분리와 치료시험을 실시하기 위하여 유산 병력을 기치고 있으면서 혈청검사에서 양성을 나타낸 암캐 다섯 마리를 현지에서 구입하였다. 그 중 세 마리는 안락사 시킨 후 부검하여 자궁을 검사하고 균 분리를 시도한 바 세 미리 모두에서 B. canis가 분리되었다. 그러나 육안적 및 조직학적 변화 는 현저하지 않았다. 나머지 두 마리는 minocycline과 streptolmycin으로 치료하였는데, 치료를 끝낸 후 8주에 실시한 혈청검사에서 음성을 보였다. 이 연구의 결과는 개 부루셀라병이 진돗개를 사육하는 농가에 경제적 손실을 초래하고 있음을 나타내준다. 아울러 대부분의 진돗개가 방사되고 있으며, 그렇게 사육된 개들이 전국적으로 팔려나가고 있기 때문에 진돗개가 개 부루셀리병의 전파원으로 작용할 가능성을 지니고 있음을 나타내준다 천연기념물인 진돗개의 보 호와 농가의 소득 그리고 공중위생학적인 면에서 진품개의 부루셀라병에 관한 연구는 지속적으로 수행되어야 할 것으로 사료된다.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.3 no.3
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• pp.170-174
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• 1998

The water quality of offshore waters around the Korean coast was evaluated by bioassay using gametes, embryoss and early development systems of a sea urchin species Hemicentrotus pulcherrimus. The results show that despite the inflows of several river systems, the west coast maintain the grade II water. This is thought to be due to the decrease in pollutant input resulting from the purification of inflow rivers (e.g., the control of waste water discharge and the construction of sewage treatment facilities), and the dilution of pollutants by a strong tidal mixing with a large difference between the ebb and flood tides. However, Asan, Hampyong and Chonsu bays, where circulations of water are relatively poor, and the Kunsan and Mokpo harbors which are influenced by pollutants from neighboring cities have shown the grade III water. The south coast has maintain the grade II or III because developments of sea urchins were moderately or strongly inhibited. Also, Kangjin, Duekryang, Kwangyang, Masan, and Jinhae bays where water circulations are relatively poor, show the grade III water, with strong inhibitions of the early development of sea urchins. The east coast has maintained the grade I and II due to monotonous coastlines and smooth circulation of sea water. However, Chongcho Lake shows the worst water quality due to the breakwater which is constructed to maintain port functions.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.2D
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• pp.191-203
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• 2008

According to a characteristic analysis of traffic accidents of industrial vehicles (RTSA 2007), the occurrence rate and lethality per 10,000 vehicles is 6.7 times higher and 5.3 times higher than that of non-industrial vehicles respectively. For the recent 10 years, in contrast to the 1.5% decrease of the annual rate of entire traffic accidents, the accident rate of industrial vehicles have been increasing 2.0% on the annual average. For the recent 10 years, the accidents of a freight truck and bus have been steadily falling off. But, in the case of a taxi, it has constantly been rising 5.6%. In these situations, the countermeasures to decrease the accident rate are suggested by grasping the inclination of taxi drivers through Q analysis which is character and psychology analysis method.

• Development and Reproduction
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• v.6 no.2
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• pp.83-88
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• 2002

Transgenic coho salmon, Oncorhynchus kisutch containing a growth hormone gene construct have been examined for their hormone levels and ability to growth for 90 days in winter season. Food intake of the transgenic coho was approximately 4-fold higher than that of nontransgenic coho salmon of similar size, but feed efficiency of the transgenic coho was 1.1-fold lower than that of size-matched control. Specific growth rates of body weight of the transgenic coho were approximately 1.4-fold (length) or 3-fold(weight) higher than that of nontransgenic coho salmon. GH, total-T$_4$ and total-T$_3$ levels were Increased approximately 2-fold compared to size control salmon. The transgenic animals also displayed head, jaw and opercular abnormalities typical of the effects of this gene construct in coho salmon, indicating that some imbalance in growth processes were induced.

• Korean Journal of Organic Agriculture
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• v.22 no.3
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• pp.435-444
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• 2014

This experiment was carried out to develop an environmental friendly agriculture material (EFAM) using neem extract i.e. azadirachtin (0.5%), especially against Bemisia tabaci (Gennadius) in eggplant. Neem product was found to be very effective against both nymph and adult of B. tabaci. Yield and economic value of eggplant treated with neem extract were higher than other EFAMs used. Effect of different concentration of Neem product was also investigated on population density of B. tabaci. The growth and yield of eggplants were highest in plants treated with 500 times concentrated solution of neem product. Economic analysis showed that the income increased by 13,545 thousand won/10a from the plots treated with 500 times concentrated solution of neem product over control. The results suggested that 500 times concentrated solution of EFAM (azadirachtin 0.5%) could be a good controlling agent of B. tabaci in eggplants.

• Journal of Korean Society of Forest Science
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• v.88 no.2
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• pp.169-178
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• 1999

The natural regeneration pattern was evaluated for 11 useful hardwood species in the natural deciduous forest where three different silvicultural practices (two-storied system, shelterwood system, and selection system) were applied and passed by three growing seasons. The study forest was presently dominated by Quercus mongolica in the upper canopy. However, since the analysis indicated that the number of regenerated seedlings of Acer mono and Fraxinus rhynchophylla was fairly abundant enough, these two species were anticipated to have the possibility to be among dominant species along with Quercus mongolica. The results of seedling occurrence after regenerating cutting showed that the number of seedlings was estimated for 3,145/ha(10 times of overstory) in the two-storied system, 6,885/ha(9 times of overstory) in the shelterwood system, and 2,275/ha(4 times of overstory) in the selection system. The estimation was varied by species, and the number of stump sprout was more abundant. The proportion of seedlings was high in 60~80% of overstory density and 60~70% of understory coverage, and high in the site of less than $25^{\circ}$ of slope and from southwest to northwest of aspect. These results were still varied by species. Stump diameter and height had little influence on the occurrence of sprout.

• Journal of Korean Society of Forest Science
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• v.97 no.4
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• pp.363-367
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• 2008

The purpose of this study was to evaluate the change of the amount of soil erosion by comparisons between burned and unburned area after forest fire. The amount of soil erosion in burned area was more high 11.2 times in year of fire, 8.4 times in 1 later year, 2 times in 5 later year and 1.3 times in 10 later year than in unburned area. The ratio of soil erosion in burned area was reduced to 98% of 10 later year as compared to the year of fire. Therefore, the soil erosion in the burned area almost tended to stabilization like unburned area passing ten year after forest fire. The most affecting factors on the amount of soil erosion in burned and unburned area were unit rainfall, number of unit rainfall and number of rainfall accumulated.