장기간 보관한 멸균물품의 오염 상태에 관한 연구

주홍순,조순덕,정재심,신동분,임바올라,노은지,이선희,송영미,최정화,백병윤,김미나 대한병원감염관리학회 2003 의료관련감염관리 Vol.8 No.1

갯쑥부쟁이(Heteropappus hispidus (Thunb.))의 감마방사선 감수성과 M1 세대 형질변동 특징

오병권,홍경애,송성준,유장걸,이선주,이영일 한국환경농학회 2003 한국환경농학회지 Vol.22 No.4

제주도에서 자생하는 갯쑥부쟁이(Heteropappus hispidus (Thunb.))에 감마선을 10, 20, 40, 80, 120, 160, 200, 300, 400 Gy 수준으로 나누어서 조사한 뒤 발아율 및 발아 30일 후의 본엽 출현율, LD_(50), 본엽길이, 줄기부분의 안토시아닌 색소 형성 유무, 생육 60일 후의 로젯형 엽, multi-shoot 형성율, 초장, 개화 결실률 등의 주요 양적형질들을 생존개체를 대상으로 실시하였다. 120 Gy 까지의 발아율은 88.5%로 대조구와 큰 차이를 보이지 않았으나 160 Gy 이상에서 부터는 급격히 감소하여 치사선량(LD_(50))은 160 Gy 범위 정도였다. 또한, 본엽 출현율과 그 길이는 조사선량이 높아질수록 억제되었다. 안토시아닌 색소 형성은 조사선량이 높을수록 대조구 2%에서 30%로 높아졌으며 로젯형도 고선량 처리구에서 발생하였다. Multi-shooting은 80 Gy 이상일 때 부터 나타났으며 multi-shooting을 형성하는 개체들은 초장은 짧고 줄기는 가늘게 다발형으로 자라는 특성이 있어서 만일 형질이 고정된다면 화분 관상용 개체로 선발하기에 적합하였다. 특히, 조사선량이 증가됨에 따라서 안토시아닌 색소 형성, 로젯형 개체, multi-shoot등의 개체가 많이 출현되었는데 이는 돌연변이 유기의 선발지표가 될 수 있을 것으로 보인다. The seeds of naturally growing Heteropappus hispidus (Thunb.) were treated by nine different doses (0, 10, 20, 40, 80, 120, 160, 200, 300, 400 ㏉) of gamma rays to investigate their germination rate and to quantify the characteristics of their germinated plants as like as leaf appearance and length, the formation rate of anthocyanin color in stem 30 days after germination, the formation rate of rosette leaf and multi-shoot, the flowering and seed-bearing, and shoot length. The germination rate at least up to 120 ㏉ was not greatly affected but was rapidly decreased at over 160 ㏉. It seemed that lethal dose (LD_(50)) of germination was 160 ㏉. The leaf appearance and growth was also inhibited, but the formation rate of anthocyanin color in the flower stem was enhanced up to 30% with dose. The rosette plants were observed in plants irradiated with higher than 40 ㏉. Multi-shoots were developed over 80 ㏉. For a short shoot length and bundle of thin stem, it was considered that they can be selected as the potential pot flower plants, through genetic fixation. In particular, it was suggested that the formation of anthocyanin color in flower stem, rosette and multi-shoot plants induced by the high dose of gamma rays could be utilized as the morphological markers for the mutant selection of Heteropappus hispidus (Thunb.).

컬러 영상에서 인체 검색을 위한 피부색 검출

이병선,이은주 한밭대학교 산업과학기술연구소 2001 논문집 Vol.5 No.-

This study proposed a new algorithm for skin color detection of human body in color images by means of the ratio of R and H. We examined Distribution of R, G and B comprising the skin color of human body in the various color images in order to come out skin color detection efficiently. It revealed that classification of R located in the less area than G and B on the RGB space is easy, and skin color of human body is remarkably related to R. Meanwhile, when color images is transformed to HSI space, S which is purity of the colors was changed in various manner. The bright I was element to change according to the quantity and angle of the light, while color H is less element to change except for color. On the basis of the above study, skin color threshold for skin color detection for human body in color images had been decided by means of ratio of R and H. In a experiment for Skin Color Detection, it revealed that the proposed algorithm overcomes changes in brightness and colors to detect skin color of human body in color images.

칼라 영상에서 피부색과 얼굴 영역 정보를 이용한 인체 영역 검출

이병선,이은주 한밭대학교 정보통신전문대학원 2003 정보통신전문대학원 논문집 Vol.1 No.1

본 논문은 인터넷 사용자의 유해 음란정보를 담고 있는 웹사이트 접근을 차단하는 방법에 관한 것으로, 칼라 영상에서 피부색과 얼굴 영역 정보를 이용하여 인체 영역을 검출하는 방법을 제안하였다. 피부색은 빛의 영향에 덜 민감하며,색상을 나타내는 H와 피부색과 상관관계가 높은 R의 비를 이용하여 검출하였다. 얼굴 영역 검출은 크기 정보와 형태적 정보를 기반으로 거리비를 이용하여 눈과 입의 영역을 검출하고, 검출된 눈과 입의 영역을 중심으로 일정 거리의 영역의 피부색 분포 비율로 얼굴 영역을 검출하였다. 인체 영역 검출은 얼굴의 세로 길이와 일정한 비를 유지한다는 구조적 정보를 이용하여 검출하였다. 실험 결과,제안한 피부색 검출 방법은 명암차를 극복하였고, 다양한 피부색 검출에 양호한 방법임을 확인할 수 있었다. 얼굴 영역 검출은 영상의 얼굴 크기와 배경에 상관없이 잘 검출되었으며, 인체 영역 검출에서는 배경이 피부색과 같은 경우에서도 인체만을 검출됨을 확인할 수 있었다. In this paper, we proposed a method human body area detection by informaticm of skin-color and face area in color image for interception of Web site approach with harmfulness lechery information of internet user. Skin-color detected using ratio of H, is less sensitive in effect of light, that express color and R that correlation is high with skin-color. Eye and mouth's area detect by using distance ratio in base of size information and form enemy information and face area was detected by skin-color distribution ratio of area of fixed distance on detected eye and mouth's area. Human body area was detected using structural information that keep facial vertical length and fixed ratio. In a experiment for skin-color detection it revealed that the proposed algorithm overcomes changes in brightness and colors to detect skin color of human body in color images. Face area detection has been detected well regardless of face size and background of reflex and human body area detection was confirmed that human body is detected well in background in case such as skin-color.

신합성 물질인 Protein kinase A 억제제, H-87의 MDR1 유전자 발현의 조절

박주인,김선희,정병선 부산대학교 유전공학연구소 1992 분자생물학 연구보 Vol.8 No.-

In this study, we examined the effect of H-87, specific inhibitor of protein kinase A, on in vitro sensitivities of mouse leukemia cell line P388 resistant to several antitumor agents. H-87 significantly potentiated the cytotoxic effects of ADM, VCR and VBL on P388 cells resistant to these antitumor agents. Thus we examined the mechanism of overcoming multidrug resistance by H-87. In northern blot analysis, H-87-treated resistant P388 cell lines showed less MDR1 gene expression than untreated control cells. As a result of CAT assay, the expression of MDRI promoter was inhibited by H-87 in a concentration-dependent manner. To compare the effect of H-87 with that of staurosporine(PKC inhibitor), we examined the effect of staurosporine on in vitro sensitivities of mouse leukemia cell line resistant to several antitumor agents. The expression of MDR1 gene in multidrug resistant P388 cells was decreased by staurosporine. The activity of MDR1 promoter was increased by TPA(PKC activator) and forskolin(adenylate cyclase activator). Therefore, we speculate that PKA and PKC may play important roles in the regulation of MDRI gene expression.

인터넷 폭주제어 메카니즘의 성능 분석

이병곤,송화선,김주영,정영준 강원대학교 정보통신연구소 2002 정보통신논문지 Vol.6 No.-

The congestion control is one of most important factors to maintain QoS and to provide reliable services in Internet applications. This paper has studied Internet flow controls and discussed the characteristics of proposed congestion control mechanisms. This paper has analyzed their characteristics of the optimum parameters for congestion controls in respect with fairness and service throughput. Also this paper discusses how the offensive UDP traffics produce the performance degradation of TCP traffic services in congestion environment.

국내에서 유행하는 HIV의 전파 경로에 따른 Subtype 분포

이주실,남정구,김성순,강춘,최병선,김옥진,박미선,성봉모,서순덕,전수경,변승옥,신영오,조해월 대한감염학회 2001 감염 Vol.33 No.5

Background : Previous data have been reported that subtype B is prevalent in South Korea, but neither the extent nor the proportion of subtypes could be evaluated. This study was designed to analyze the distribution of HIV-1 subtypes, temporal instructions and transmission dynamics between epidemiological groups. Methods : 1,280 Koreans had been diagnosed as HIV seropositive during the period 1985 to 2000. Among them, 134 individuals were selected for this molecular epidemiological study. 134 DNAs were isolated from uncultured or cultured peripheral blood mononuclear cells. V3-V5 (0.7 kb) fragment of HIV-1 env gene was amplified by nested polymerase chain reaction and was sequenced. Results : HIV-1 isolates from thirty-seven homosexuals were all subtype B (100%). On the other hand, 66 isolates from 94 heterosexuals were subtype B (70%) and 28 were non B subtypes (30% : 13 A, 4 C, 2 D, 8 E , 1 G). Only subtype B strains were isolated from 73 males who were infected with HIV inside Korea while 16 B and 20 non B subtype strains were isolated from 36 males who were HIV infected outside of Korea. However, B and non B strains were isolated half and half from females who were infected inside Korea except one. Conclusion : The HIV-1 subtype B strains are prevalent in Korea from the early HIV infection until present in both homo and heterosexuals. Non B strains have been transmitted from men who were infected outside Korea to their spouses and casual partners. So, we need further study to monitor subtype B and non B HIV transmission in epidemiological groups of Korea, (Korean J Infect Dis 33:311∼318, 2001)

골퍼(golfer)들의 골프장 이용에 대한 소비자 만족도 조사

백병주,김명선 龍仁大學校 體育科學硏究所 2004 體育科學硏究論叢 Vol.14 No.1

The purpose of this study was to examine visitor's satisfaction about facilities and services in golf links. The subjects of this study were 220 people are playing golf at specific four golf links in kyung-ki province. The conclusions are as follows; Firstly, In the visitor's sex, the male was more satisfied with the locker room and shower room, and it revealed significant difference statistically. In the visitor's age, over the 60 years were generally satisfied with every factors without costs, but it did not reveal significant difference statistically. In the visitor's scholarly attainments, significant difference was revealed in the factor of scenery and course, and more learned was not satisfied with other factors such as locker room and shower room, service, restroom and booking, etc. In the visitor' income, significant difference was revealed statistically in every factors, and visitors who earned 1,000 thousand won per month revealed the lowest satisfaction level. Secondly, In the visitor's career, significant difference was revealed in the other factors such as lighting, scenery and facilities, and high career visitors were not satisfied with the factors of subordinate position. In the visitor's batting average, significant difference was revealed in every factors without the service, costs and caddie. In the visitor's reason of choice, significant difference was not revealed at the number of usage per month, reason of visit and member or nonmember without the scenery and course.

골프가 여가에 미치는 영향

백병주,김명선 龍仁大學校 體育科學硏究所 2004 體育科學硏究論叢 Vol.14 No.1

The purpose of this paper to describe the influence of participation in the golf activities The results of the study based on data analysis are follows ; First, it has been revealed that the higher the participation in golf activities, the higher (Psychological, educational, social, physiological, and environmental) leisure satisfaction. Second, the results indicates that the longer the period participation in golf activities, and the frequency of the participation in golf activities, the higher (Psychological, educational, social, physiological) leisure satisfaction. Also the environmental leisure satisfaction has no relation with the period of participation from a staristical viewpoint. Based upon the analysis of the results and within limitation of this study, it concluded that the participation in the golf activities enhaces leisure satisfaction.

TMN과 TINA 기반의 통합 망관리 시스템

김주영,이병곤,정영준,송화선 강원대학교 정보통신연구소 2000 정보통신논문지 Vol.4 No.-

This paper presents an optimum model to construct a TMN and TINA based integrated network management system. This proposed model provides efficient and reliable interoperability between heterogeneous networks and systems along with maintaining transparency and scalability among TINA and presents an optimum gateway scheme with comparison of their operational characteristics. As a result of this study, we present a distributed network management system based on TMN and TINA and discuss operational scenario.