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조근태,김성조,김성민,김용우,김성재,조용곤 한국경영과학회 2004 經營 科學 Vol.21 No.2
The imports of used medical equipment such as CT, MRI have been rapidly increased every year. How to manage those medical equipment has been one of critical issues in the government sector. In this study, we demonstrate how benefit/cost analysis using the Analytic Hierarchy Process (AHP) can be applied to the comparison of used CT/MRI and new CT/MRI. The final results show that the new CT/MRI is more attractive than the used CT/MRI.
스포츠·레저용품 구매행동에 따른 실버시장세분화에 관한 연구
조근종,김성훈 漢陽大學校 體育科學硏究所 2003 體育科學 Vol.23 No.23
The purpose of this study was to examine silver consumers' perception of sporting and leisure goods, their purchase behavior by class in a bid to be of use for more successful marketing strategy. The subjects in this study were 362people selected from among the elderly over 55 who resided in Seoul. Out of them, 230 people aged from 55 to 64 were called here the new silver group and 132 over 65 were called the silver group. A survey was conducted to find out their awareness of sporting and leisure goods, their attitude and purchase behavior. The instrument used in this study was 10-item questionnaire covering silver consumers' perception of sporting and leisure goods, their purchase behavior. As the subjects were old people who had relatively poor cognitive ability, self-administration method and interview were employed together. The collected data were analyzed with one-way ANOVA and x2 test. As a result of analyzing the intervariable relationship, the following findings were acquired: Regarding their purchase behavior by demographic variables, most variables made a significant difference, including gender, household income, presence or absence of job, living with children or not, and having spouse or not. This was an evidence that the silver market is worthwhile for segment approach. The silver market should no longer be viewed as a feeble market with no buying power, and the sports and leisure market is required to take prompt action to keep up with the socioeconomic change toward aging society.
Chinese hamster 난소세포에서 수용성 니켈에 의해 특징적으로 발현되는 유전인자들의 빠른 분석에 관한 연구
성근제,이상한,우기민,송호연,조만희 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2
니켈에 의한 암 발생기전 및 세포 독성기전을 이해하고 니켈에 의해 발현에 변화를 보이는 유전자들을 검출하기 위하여 니켈이 포함된 배지에서 배양된 Chinese hamster난소 세포부터 mRNA differential display 분석을 시행하였다. 본 연구에서는 동위원소나 DNA염기서열 분석용 젤을 사용하는 기존의 방법 대신에 훨씬 빠르고, 다루기 쉽고 안전성을 지닌 변형된 기법을 개발하여 적용하였다. 니켈에 의해 발현에 변화를 보이는 cDNA fragments들을 10% polyacrylamide mini젤상에서 분리 및 클로닝한 다음, DNA염기 서열 분석과 GenBank Blast search 프로그램을 이용하여 상동성 조사를 하였다. Reverse Northern blot을 이용하여 발현에 변화가 있는 cDNA들을 재확인한 결과, 검사된 19 cDNAs 들중 총 9종에서 발현의 변화를 보였으며, 이 중 3종은 니켈에 반응하여 발현에 증가를 보였고, 반면에 6종은 발현이 감소하였다.
조성환,손화영,김혜성,최종윤,류시윤,박배근,윤원기,홍성혁,김덕환 충남대학교 수의과대학 동물의과학연구소 2002 動物醫科學硏究誌 Vol.10 No.-
Pilomatricoma was histopathologically diagnosed in a 2.5-year-old male Alaskan malamute. The patient was referred to Chungnam National University, Veterinary Medical Teaching Hospital with solitary, firm and well-circumscribed mass at shoulder. Grossly, the mass was dome shaped to tumor like and 10 x 8 x 5㎝ in size. Some lesions had gritty or bony consistency and was chalky when sectioned Histopathologic feature included mumerous clusters of tightly arranged, basaloid cells with evenly distributed chromatin and ghost cells were characterized by a central unstained zone. The ghost cells often become calcified and osseous metaplasia was also present.
단열양생을 이용한 고강도 콘크리트 압축강도 추정에 관한 실험적 연구
조규현,김제섭,전판근,백민수,김우재,정상진 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
The present study is a basic experiment on the estimation of the compressive strength of high strength concrete, aiming at estimating the compression strength of mass test pieces of high strength concrete by giving the temperature hysteresis of the mass test pieces to managerial test pieces. Different from ordinary concrete, high strength concrete generally shows the high rise of temperature caused by hydration heat inside the concrete. It is known that, in mass concrete, thermal stress occurs due to the difference in temperature between the inside and the outside, which causes a significant difference in compression strength between structure beams and managerial test pieces. It is also reported that there is a large difference between the compression strength of cylindrical managerial test pieces of standard underwater curing and the strength of structure beam concrete. Thus, this study made concrete test pieces in an optimal mix ratio for each strength level, and also created adiabatic curing tank and managerial test pieces. Then it carried out comparative analysis in relation to core strength and suggested equipment and a technique that can control the strength of high strength concrete mass more conveniently and accurately.
조영도,조준,문창택,장상근,윤상애 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-
This case report deals with a 75-year-old female. The patient was admitted for headache due to passenger traffic accident. Plain radiographs of the skull showed the finding of dense calcified lesion in the right parietal bone. In the Brain CT scan, this lesion showed uniformly hyperdense and non-enhancing mass. The clinical examination showed no gross abnormalities. In the operation field, this lesion attached to the inner surface of the dura by the dense fibrous band and protruded into the cerebral cortex. One fragment was about 1cm×1.4cm×1.6cm and the other about 3mm×2mm×3mm. Histologic examination of the surgical specimen(H/E stain) showed a benign osteoma.
한국 재래 우 및 산양 위장관의 somatostatin cell에 대한 면역조직화학적 분포
조성환,김현수,박배근,윤원기,손화영 충남대학교 수의과대학 동물의과학연구소 1995 動物醫科學硏究誌 Vol.3 No.-
The relative frequency and distribution of somatoatatin immunoreactive cells were investigated by the immunohistochemical method in the gastrointestinal tract of the Korean native cattle and goat. The results obtained were as follows: In the Korean native cattle, somatoststin cells were a few in the pyloric and duodenal region and rarely seen in fundic region, jejunum, ileum, cecum, proximal colon, central coil, distal colon and rectum. In the Korean native goat, somatostatin cells were the most numerous in the pyloric region and the next in the fundic region. And they were a few in the duodenum, not detected in the cecum and sparse in the jejunum, ileum, proximal colon, central coil, distal colon and rectum.
돼지생식기호흡기 증후군(PRRS) 바이러스 감염시킨 돼지 기관의 병리학적 관찰
조성환,김현수,윤원기,전무형,류시윤,박배근,손화영,김무강 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-
The porcine reproductive and respiratory syndrome virus was inoculated into swine tracheal organ culture. The ballooning degeneration of the tracheal ciliated epithelium and a decrease of ciliary activity from the tracheal organs infected with PRRS virus were observed one day post-infection(PI). Tracheal epithelium showed degeneration and focal necrosis 2 days PI. Epithelial necrosis and loss of cilia and epithelial cells became more severe 3 and 4 days PI. An entire loss of cilia and epithelial cells were recognized 4 days PI, however, control tracheal organs were normal during the period of the experiment except a little decrease of ciliary activities with time..
趙相根 大田大學校 1984 論文集 Vol.3 No.1
Land in a indispensable property in the activity for life and existence of human being, and at the same time it is the foundation of social, economic, and cultural life. The right to possess land is called landownership, Landownership is historical concept. In the middle ages, landownership was divided into two parts (Upper landownership and lower landownership), and contained many restriction. Modern landownership created by statute law is legal symbol of the private property system and at the same time the main part of the private property right. The concrete existence and legal form of the landownership differ with each nation's through historical background, in the course of transition from feudalism to capitalism. But regarding land as an article or goods, the landownership demands a particular legal order according to essential peculiarit of land, and limitation on the landownership are inevitable because land serus publicly and privately. A nation on the modern landownership must be understood in the point of social operation that limitation in the public law and private law a