http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
곰팡이에서 분리한 Helicobacter pylori 항균물질의 분리 및 구조규명
남궁준,연승우,백남수,김태한,김영호,김창진,김기원 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-
Helicobacter pylori is a Gram-negative bacterium which causes chronic gastritis and is associated with gastric ulcer, duodenal ulcer and gastric carcinoma. In the process of screening of antibacterial activities against H. pylori from soil microorgani는, fungus No. 60686 was isolated. After fementaion of No. 60686, the antibacterial compound was isolated, purified and followed by extraction of mycelium with orgainic solvents, acetone and ethyl acetate, through silica gel chromatography, LH-20 gel chromatography and HPLC. As a result of the structural analyses of the compound by IR, ^1H- and ^13C-NMR, FAB/Mass spectrophotomer, the compound having the antimicrobial activity was idenfitied as chaetoglobosin A (C_32H_36N_2O_5), a cytochalasan derivative. The antimicrobial activity of chaetoglobosin A was tested against Gram-positive and negative bacteria by paper disk method. Among the test strains of 9 Gram-positive bacteria and 18 Gram-negative bacteria containing 4 H. pylori strains, the growth of 4 H. pylori strains and 3 S. aureus strains (SG 511, 285 and 503) was only inhibited by chaetoglobosin A. Also it was shown that its growth inhibition against H. pylori strains was stronger than that against S. aureus strains at the treatment of the same concentration. Therefore it was concluded that chaetoglobosin A has a specific growth inhibition against H. pylori of the tested bacteria.
전기적 노이즈에 의한 누전차단기의 오동작에 관한 실험적 연구
김태만,권용준,기도형 한국산업안전학회 2002 한국안전학회지 Vol.17 No.1
The purpose of this study was to investigate effect of electrical noise on malfunction of the earth leakage circuit breaker. A three-way experiment for studying its malfunction was conducted, in which electrical products such as radio, alternating current arc welder and cellular phone, distance from the earth leakage breaker to electrical products, and whether or not the earth leakage breaker is contained in the steel box were employed as experimental variables. Eleven earth leakage breakers frequently used in real situations were tested in each experimental treatment. The electrical products were used for generating electrical noise that is known to be able to cause malfunction of the earth leakage breaker. The results showed that except a case for one of the 11 earth leakage breakers when the radio made by M company was located 30 cm ahead of the breaker, malfunction did not occur in any other experimental treatment. Consequently, it is suggested that the breaker should be normally used for preventing electricity-related accidents without fear of its malfunction in industrial sites.
김영권,이기형,박태원,정인성 全北大學校 1995 論文集 Vol.39 No.-
This study discusses the finite element approximation and the choice of elements is dictated by the need to perform accuate for both thin and thick shells and by the complexity of the sensitivity calculations. A number of very accurate plate and shell elements exist for which the sensitivity computation become hopelessly complex. On the other hand, most very simple elements, which would lend themselves to compact and efficient sensitivity computation, do not posses sufficient accuracy for routine use.
기저세포암, 피부전이암과 유사한 조직소견을 보인 안검 외 피지선암 1예
김상태,노효진,서기석 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.1
Backgroud : Extraocular sebaceous carcinoma is a malignant tumor derived from the adnexal epithelium of sebaceous glands. A poorly differentiated sebaceous carcinoma shows variable histopathologic findings and mimics other primary tumor and cutaneous metastases mostly composed of clear cells. Case : Our patient consultation was requested for a 53 year?old female with solitary mild painful tumor on the scalp. The first histopathlogic impression of this case was basal cell carcinoma on the other hospital. After reevaluation, our diagnosis is not basal cell carcinoma but extraocular sebaceous carcinoma. Conclusion : A thorough exact recognition of characteristic histopathologic features of extraocular sebaceous carcinoma is necessary for making diagnosis, treatment plan and determining the prognosis.
金基泰 仁川敎育大學校 1994 論文集 Vol.28 No.2
The Chonkyonggak was established as a kind of university library in Seongkyoonkwan by the earnest request of Prime Minister Hanmyonghoe at that time. It lasted about 400 years until the end of Lee Dynasty, taking the important and leading role as the only university library, which in my opinion has a very significant meaning. The purpose of this study is to discuss in various field of this, Chonkyonggak, the great university library of that period, about which the study is very insignificant, to investigate the establishment and modification, the function and system, and the library, of the Chonkyonggak in Seongkyoonkwon, and finally to try to find out the relationship between Seongkyoonkwon and the Chonkyonggak.
김성수,김규태,천성민,신기현 건국대학교 산업기술연구원 1997 건국기술연구논문지 Vol.22 No.-
In a web winding process, the contact roll plays many important roles in air entrainment control and WIT(Wound In Tension) regulation. The behavior of the contact roll significantly affects the winding tension characteristics specifically at the time of contact and separation when the tangential velocities of contact roll and winding roll are not synchronized. A new mathematical model which includes the behavior of the web tension, the winding roll, the carriage and the contact roll is derived for the control of the winding tension. By using the model derived, a non-linear PID(NPID) controller is designed to control the winding tension at the time of contact and separation between the contact roll and the winding roll. Computer simulation study showed that the performance of the winding system with the NPID controller was significantly improved compared with that of a system with PID controller.
김태환,홍원기,이용두 대구대학교 정보통신연구소 2004 情報通信硏究 Vol.3 No.2
RFID는 태그와 리더간 전자기 유도를 통해 객체를 식별하는 무선 통신 기술이다. 이는 객체를 식별하기 위한 인식 거리나 위치 등에 있어서 바코드에 비해 매우 자유로우며 동시에 여러 객체를 인식 할 수 있기 때문에 향후 물류, 유통 산업에서 높은 기술적 가치를 갖는다. 일반적으로, 리더기를 통해 식별된 객체에 대한 상세한 정보를 얻어내기 위해 PML 서버로부터 해당하는 정보를 검색, 추출하기 위한 과정이 요구된다. 그러나 이것은 많은 연산과 서버와의 통신을 요구하기 때문에 자원 제한적인 리더기에는 상당한 부담이 될 수 있다. 본 논문에서는 제한적인 하드웨어 자원을 가진 리더기에서 PML 문서 검색, 추출을 위한 부하를 줄이기 위한 시스템을 제안한다. RFID (Radio Frequency IDdentification) is a wireless communication technology that identifies an object containing a tag through electromagnetic induction. Because it is not restricted in its position or the read range as much as the bar code technology which requires a line-of-sight to identify an object but also able to read several tags at the same time, it is considered to be one of the promising technologies used in the distribution industry in the future. Generally, a process of retrieving and acquiring a corresponding data should be needed to get a detail information about an object identified by a RFID reader. However, it gives a heavy burden on the resource-restricted reader because it requires significant computation and communication tasks. This paper proposes a 글로벌 RFID system that efficiently decreases the computation load to retrieve an acquire a PML document for the resource-restricted reader.