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광대역 고이득 응용을 위한 단일요소 자기-전기 다이폴 안테나
윤수정(Su Jeong Yun),이가현(Ka Hyeon Lee),이정남(Jung-Nam Lee),조영균(Young-Kyun Cho) 한국정보기술학회 2022 Proceedings of KIIT Conference Vol.2022 No.6
본 논문에서는 넓은 대역폭과 높은 이득을 갖는 단일요소 자기-전기 다이폴 안테나를 제안하였다. 제안된 안테나는 두 개의 금속판 연결을 통해 전기 다이폴의 매칭 주파수를 조절하여 대역폭을 개선하고, 금속 벽과 다이폴 안테나 사이의 간격 조절을 통해 자기 다이폴의 전류 분포를 변화시킴으로써 이득을 향상시킬 수 있다. 이러한 단일요소 안테나의 성능 개선은 제안된 안테나가 배열 형태로 구성되었을 때 더욱 높은 성능 지표를 기대할 수 있게 한다. This paper presents a single element magneto-electric dipole antenna that ensures a wide-bandwidth and high-gain. The return loss characteristics of the proposed antenna is improved by adjusting the matching frequency of the electric dipole through the connection of two metal plates. The realized gain of the antenna is enhanced by altering the current distribution of the magnetic dipole, which is changed by adjusting the distance between the metal wall and the dipole antenna. With these features, a higher performance array antenna for Ka-band can be achieved.
오가영 한국문화교육학회 2011 문화예술교육연구 Vol.6 No.3
본 연구는 미술치료가 자폐아동의 사회성 향상에 어떠한 영향을 미치는지 알아보고자 하였다. 연구의 대상은 발달장애 1급 진단을 받은 자폐증 아동으로 장애 통합어린이집에 다니며, 또래 그리고 교사와의 상호작용이 어렵고 교사의 지시에 잘 따르지 못하는 아동이다. 본 연구의 대상에게 치료사와의 상호작용을 통한 미술치료 프로그램을 일주일에 한번 씩 총 12회기 실시하였다. 또한, 프로그램의 효과를 검증하기 위하여 치료사 2명과 어린이집 담임교사에게 사회성 기능 행동 평가를 사전·사후 실시하도록 하였다. 그 결과, 아동의 사회성 기능 행동 평가(사회적 책임, 자기주장, 친사회적 신체자세)에 긍정적인 변화가 나타났으며, 아동의 프로그램 활동내용을 질적 분석한 결과 아동의 사회성에 관한 행동들이 긍정적으로 변화된 모습을 살펴 볼 수 있었다. 이상의 결과를 통하여, 미술치료 프로그램이 자폐아동의 사회성 향상에 긍정적인 효과를 미친다는 결론을 내 릴 수 있다. It turns out that art therapy has an effect on the improvement of the sociality of the autistic child. The for 6 year old of autistic child who attend handicapped children inclusive child care center in J city has level 1 developmental disorder. The autistic child has problems instruction with child's peer as well as his teacher and he is not follow his teacher. The autistic child received a total of 12 art therapy sessions once a week. For the effect of this art therapy, the child’s socio affective profile test were conducted on two art therapists and the child’s teacher. The results of the study was as follows, there were great improvements in the child’s sociability(social responsibility, self-assertion, pro-sociality). Also, when the art therapy program was analyzed, it showed that art therapy had a positive influence on the child. The result proved that art therapy can provide a favorable influence to the autistic child sociality.
이가영,박태진 인제대학교 지역사회의학연구소 1998 硏究論文集 Vol.5 No.-
Backgrounds: This study was performed to find the relationship of health behaviors and physical health status in the elderly. Therefore, we evaluated the significance of health behaviors and to get the useful data of the health promotion in the elderly. Methods: The elderly 65-years old or over were recruited and enrolled at a medical service practiced in 8 different rural areas in 1997. A total of 217 completed questionnaires were obtained. The questionnaire consisted of the variables of sociodemography, health behavior, physical health status, health concern, and depression. The data were analysed by Mantel-Haenszel test for linear association, t-test, ANOVA, and multiple regression analysis. Results: Eating breakfast and physical activity among the health behaviors were related to physical health status. The level of practicing health behavior was related to physical health status, especially to the admission history , and disability in work because of the illness. The predictors of health status score were health concern and total health behaviors. Only physical activity among the health behaviors was the significant predictor of physical health status. Conclusions: The result that health behaviors are related to health status in the middle-aged is applicable to the elderly. And physical activity is the predictor of physical health status in the elderly. These results suggest health behaviors will be helpful to the elderly's health.
태생 36주에 발견한 선천성 에푸리스(congenital epulis)의 치험례
김가영,권오승,백경식,송우식,김인권 大韓顎顔面成形再建外科學會 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.4
The congenital epulis of newborn is a rare benign tumor that occurs on the gingiva of the anterior alveolar ridge of the jaws, also known as a congenital granular cell tumor. Females are affected 8 - 10 times more often than males. The typical location is the alveolar ridge of the maxilla near the canine but the mandibular region can also be involved. The lesion may be sessile or pedunculated with red or normal color. The size of tumor varies from several millimeters to a few centimeters in diameter. Surgical excision is generally indicated and no recurrences have been noticed. Spontaneous regression is rare. It is histologically similar to the granular cell tumor, although pseudoepitheliomatous hyperplasia does not occur in the former lesion. Thus sheets of large, closely packed cells showing fine, granular, eosinophilic cytoplasm comprise the tumor mass. This is a case report of congenital epulis in the fetus. The lesion was detected in ultrasonogram, its size is 3cm in diameter. The infant showed nursing disturbance and respiratory obstruction after birth, so the tumor was surgically excised under local anesthesia.