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조성민(Seong-Min Cho),김병진(Beung-Jin Kim),박석현(Suk-Hyun Park),김순영(Sun-Yang Kim),전희종(Hee-Jong Jeon) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
In this paper, the method of Space-Vector Pulse with Modulation(SVPWM) with Fuzzy Logic Regulator(FLR) is proposed. In a conventional SVPWM, the procedures of phase transformation and choosing PWM patterns are complex. So, It should be implemented with high performance processor like Digital Signal Processor(DSP) In order to reduce a calculation burden, a proposed system adopts FLR. Using a linguistic contro strategy based on expert knowledge, FLR relieves the processor from a heavy computations In simulations, the proposed system is validated.
韓圭榮,梁富弘,朴碩鉉 忠州大學校 1981 한국교통대학교 논문집 Vol.14 No.2
The aim of this thesis is to get architectural planning data on the public meeting facility(specially on the ma-eul-whae-gwan, which means village hall)as a case of continuous study about the community facility. The approach of searching corresponding relation between the community life and the facility is accepted as a research methed. Questionnaires to inhabitants were made about the following problems. (1) relation of association (2) contents and motive of meeting (3) frequency and hours of meeting (4) opinion about the location and the size of facility (5) satisfaction and the requirements of the facility The thesis has three parts of present situation of the facilities activities in community and the arrangement and size of facility. The conclusions are as following. (1) As a result of dispersion of the meeting facility, village hall has a roll of central community facility, however, the character of small-type and multi-purpose facility is exposed greatly. (2) On the side of reasonable size of ficility, present meeting places is required up to minimum size for the suffifunction as a multi-purpose facility. (3) All sorts of vivid community life need the complete meeting facility first and the other social education facility. Therefore the synthetic network of facilities must be lrived with a long -dated plan.
최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4
Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.
침윤성 유방암종 128 예의 bcl-2 , p53 , cyclin D1 발현의 의미와 임상병리학적 예후인자 및 생존율과의 상관성
이미자,박석현,전호종 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.8
Objective : Apoptosis represents a mechanism by which tumor cells with DNA damage can be deleted. bcl-2 and p53 gene products have both been linked to apoptosis. bcl-2 play a role as an inhibitor of apoptosis that may facilitate tumor progression. Mutant p53 has a similar effect. Overexpression of the cyclin D1 gene can accelerate the progress of cells through the G1 phase and relate to tumor proliferation. Therefore, cyclin D1 may have an apoptosis inhibiting effect. We investigated the relationship of expression of bcl-2, p53 and cyclin D1. Methods : Expression of bcl-2, p53 and cyclin D1 gene was detected by immunohistochemistry using paraffin sections in 128 cases of invasive breast carcinoma. Results were correlated with survival rate and clinicopathologic prognostic variables such as patient's age, histologic grade, lymph node status, tumor size, DNA ploidy, estrogen receptor (ER) and progesterone receptor (PR). Results : Our results showed that bcl-2 expression was positively correlated with ER and PR, and involved in low histologic grade. The expression of p53 protein showed a significant relationship to high histologic grade. An inverse relationship was shown between bcl-2 and p53 expression. cyclin D1 expression was significantly more often found in tumor with bcl-2 and in tumors with low histologic grade expressing ER and PR. No association was seen between cyclin D1 and p53 expression. In survival analysis, no definite association between bcl-2, p53, cyclin D1 and survival rate was found. Conclusion : bcl-2 and cyclin D1 expression was involved in tumor progression in well-differentiated tumors and could be an estrogen and progesterone related protein. Mutant p53 could substitute for bcl-2 function in poorly differentiated tumors. In multivariate analysis, the expression of bcl-2, p53, and cyclin D1 were not themselves independent predictors for clinical outcome.
이삼우,유기철,박석현,안무업,안희철,최영미,정재봉,서정열,조준휘,신호승 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4
Neck trauma can result in a spectrum of injuries and complications ranging from incidental to life threatening, including hemorrhagic shock, acute neurologic injury, and airway obstruction. A prevertebral hematoma associated with a cervical vertebra fracture is not a common condition, moreover, in such cases, airway obstruction is rare. If this condition occur, it may very fatal that can producing hypoxia, cyanosis, acidemia, hypoxic brain damage, and then death. For this reason, the attending physitian must careful observation and protect the airway until the hematoma is reduced and other complication relieved. Recently, we experienced a case of airway obstruction induced by cervical vertebra teardrop fracture (C5). the hematoma progressed slowly and then progressively; Finally it compressed the airway. So we present this case with a reviews of the literature.