• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.1819-1823
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• 2005

Incorrect information on public sites can cause serious problem. One of relevant countermeasures against this problem is to detect of buried underground utilities in real time. Although there have been several method to detect of buried underground utilities, such as investigating of gravity and elastic wave and electric field, they have not been so efficient tools. Because it is too expensive and difficult to use. In this paper, magnetic sensors which could provide an easier and more efficient method are used to detect of buried underground utilities. Also fluxgate method of self detection are used. Input signal is used $1\~10kHz$ frequency. Filtering and signal processing of output signal are used labview software. After experiment, detection system of buried underground utilities which used magnetic shows possibility of precise detecting of laying object based on theorectical analysis for electromagnetic field.

• 보건행정학회지
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• 제1권1호
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• pp.153-160
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• 1991

Hospital Management, as a branch of science, is now in a formative period in Korea. Proper understanding on the scienctific nature and issues of the subject, therefore, is important for both its developement and education of the students. As an academic subject, Hospital Management can be pointed out to have three characteristics, Firstly, when looking it in teleological viewpoint, it is a branch of health science. Ultimate goal of the hospital lies in promoting and keeping health of the people residing in the catchment area in which it places, Secondly, in terms of its contents, Hospital Management can be divided into tow subsubjects ; hospital administrative management and hospital business management. The former stands at the point of looking the hospital as the object of goverment administration, while the latter as the subject of organizational operation. Flanlly, Hospital Management, in its academic appoach, is a science that adopts management theories, what is called, traditional and/or modern. For the settlement and development of the Hospital Management, four major issues were suggested for discussion now and in the future. They include ; (1) boundary between Hospital Management and its related academic fields (2) subdivision of the subject and its contents, (3) activation of study, theortical and empirical, and (4) distinction of the level of lecture among lecfnical, four-year and gradudate courses.

• Journal of Pharmaceutical Investigation
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• 제24권4호
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• pp.297-300
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• 1994

Development of hyperlipidemic animal model is prerequisite for the screening of drugs lowering the blood lipoprotein level. In this study, two kinds of diet regimens were tried for the hyperlipidemic effect. The model will be used for the screening of current prescriptions to a variety of diseases related to hyperlipidemia by practioner of traditional herbal medicine. Fifteen male Wister rats of 200g were divided into three groups, and given normal, or either one of the two high cholesterol diets for up to 2 weeks. Regimen HC-1 and regimen HC-2 contained I% and 2% cholesterol in diet, respectively. Total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL) and lower density lipoprotein cholesterol (LDL) levels in the serum were measured before the start of the diet, at 1 week after the start, and at 2 week point. Both regimens resulted in hyperlipidemia with the typical characteristics of increase in TC and LDL, and reduction in HDL, and showed no observable side effects such as diarrhea. In conclusion, both of HC-1 and HC-2 regimens appeared appropriate as diet regimens for the hyperlipidemic rat model.

• 한국미생물·생명공학회지
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• 제20권1호
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• pp.46-52
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• 1992

농축유청으로부터 유청음료 제조를 위한 최적조건을 조사하기 위해 역삼투장치(reverse osmosis system)를 사용하여 치즈유청 속의 유당을 농축한 수 $\beta$-D-glactosidase로 가수분해시켜 그 분해정도를 HPLC(high performance liquid chromatography)로 측정하였다. 유당의 가수분해 정도는 농축적 유청, 2배 농축 유청과 3배 농축 유청 순으로 가수분해되었고 일정량의 효소첨가에 의해 농축된 염이 $\beta$-D-Galactosidase에 대한 약간의 저해작용을 일으켰다.

• Journal of Nutrition and Health
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• 제2권1호
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• pp.9-17
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• 1969

For the purpose of finding out the differences between urban and rural primary school children aged from 7 to 12 in their physipue, 1146 (578 boys and 567 girls) urban children and 1378 (693 boys and 635 girls) rural children were obserbed by the author during 2 months period from September, 1968 to October, 1968. Following were the findings obtained from this study. 1. Physique In general, urban children showed superiority than rural children if their physique, There could be seen significant differences in their height, weight and chest-girth specially in the age group of 11 and 12. 2. Physique indices In the physique indices based on the height, the value of urban children showed superiority than rural children in relative weight but in relative chest-girth it was the other way around and there were no significant differences between these two groups in relative sitting height. The Kaup index showed higher value in urban children and the Vervaeck index in the rural children and there were no significant differences between these two groups in the Rohrer's index. 3. Comparing these figures with the Korean Standard Value, urban children showed superiority and rural children showed inferiority. Our children were inferior than the Japanese children in their physiques.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2016년도 춘계학술대회
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• pp.217-218
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• 2016

국내 물류창고는 기업에 있어 재고관리 및 상품배송을 위한 전략적인 요충지로써 발전해 왔다. 물류창고는 역할에 따라 보관형 물류창고와 택배와 같은 통과형 물류창고, 이를 복합한 물류창고가 존재한다. 현재 국내 물류창고의 입지를 고려할 때 임대료 또는 지가와 같은 가격적인 요소와 물류적 기능을 동시에 고려하고 있다. 가격적인 요소의 경우 평가요소가 명확하나 물류적 기능에 대한 구체적인 평가요소는 현재 없는 실정이다. 본 연구에서는 국내의 보관형 물류창고 입지선택에 있어 물류적 기능을 고려한 입지요소들의 우선순위를 전문가 설문조사를 통해 추출하려 한다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 춘계학술대회
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• pp.585-588
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• 2007

As the distributed generation becomes more reliable and economically feasible, it is expected that a higher application of the distributed generation units would be interconnected to the existing grids. This new generation technology is linked to a large number of factors like economics and performance, safety and reliability, market regulations, environmental issues, or grid connection constrains. KEPCO (Korea Electric Power Corporation) is performing the project to develope the Distributed Micro Gas Turbine (MGT) technolgies by using Swine BIO-ENERGY. This paper describes the plans and strategies for the renewable energy of MGT on actual grid-connection under Korean situations. KEPCO also, has a research plan on bio-gas pretreatment system applicable to our domestic swine renewable resources and is performing concept design of pilot plant to test grid operation. In addition, this testing will be conducted in order to respond to a wide variety of needs for application and economic evaluation in the field of On-site generation.

• Journal of Chest Surgery
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• 제13권2호
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• pp.149-153
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• 1980

Von Recklinghausen's disease is a systemic hereditary disorder with varied manifestations in bone, soft tissue, nervous system, and skin, the most common of which is the developement of multiple, small, cutaneous tumors with a characteristic histologic picture. Tumors develop after birth and before puberty in most cases, and they increase in number until old age. Malignant neoplasms that complicate multiple neurofibromatosis include gliomas of the optic nerve, astrocytomaas of the cerebral and cerebellar hemispheres, and sarcomas of peripheral nerves (femoral, tibial and intercostal nerves) and somatic soft tissues. Little attention has been paid to the presence of cystic lung disease in association with neurofibromatosis. Currently, most think of thoracic involvement in neurofibromatosis in terms of posterior mediastinal neuroma, pheochrocytoma, meningocele or, less commonly parenchymal pulmonary neurofibromas. Author have experienced 2 cases of Von Recklinghausen's disease. One case developed a hyge malignant Schwannoma in the parietal pleura of left 4th intercostal space and multiple benign neurofibromas (two in intercostal spacees and one in the neck) , and the other has several episodes of pneumothorax resulting from diffuse cystic lung disease which required closed thoracotomy drainage.

• Journal of Yeungnam Medical Science
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• 제13권2호
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• pp.367-371
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• 1996

저자들은 무증상의 회음정중봉선 낭종으로 진단된 2례의 소아에서 수술적 요법으로 단순 절제술 후 일차적 봉합을 시행하였고, 그 결과 미용상의 문제, 이차성 감염의 예방, 심리적인 문제를 해결할 수 있었다. 그러므로 무증상, 비감염성인 회음정중봉선 낭종에서 진단 즉시 수술적 치료를 해주는 것이 더 나은 결과를 가져올 수 있다고 사료된다.

• 대한의용생체공학회:의공학회지
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• 제16권1호
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• pp.1-8
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• 1995

A variety of experiments of endothelial cell seeding onto artificial vessels have been performed. To improve endothelialization, one or two components of the extracellular matrix (ECM) have been used as an underlying matrix. In this study, the whole ECM excreted from fibroblasts was used as an underlying matrix. Fetal human fibroblasts were cultured on a polyurethane (PU) sheet. After a conflu; ence was attained, the cytoskeleton and the nuclei of the fibroblast were destroyed using Triton-X. Mitomycin, or irradiation. Omental microvascular endothelial cells from adult human were seeded onto various substrates. After 12 days in culture, the cells were counted. It was observed that the ECM treated by irradiation had the highest cell number. In addition, the cells on this substrate exhibited the most typical endothelial cell morphology. For preliminary animal experiments the PU vessels (inner diameter, 1.5mm) coated with ECM were implanted in the infrarena] abdominal aorta of rat. After the vessels had been implanted for 5 weeks, it was found that the surface of the PU vessels was completely covered with endothelia] cells. In conclusion, we can state that the fibroblast-derived whole ECM makes a better underlying substrate for the endothelialization of small diameter artificial vessels.