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김주필(Joo Pil Kim),정혜리(Hye ri Jeong),김대희(Dae Hee Kim),박동우(Dong Woo Park),서재웅(Jae Woong Seo),이현우(Hyun woo Lee) 한국거미연구소 2017 한국거미 Vol.33 No.1
2016년 3월 31일부터 7월 31일까지 서울특별시 서초구 서초동에 위치한 서울고등학교 교정 일대를 서울고등학교 환경생물부 부원들이 채집 조사한 결과 20과 43속 53종의 거미가 조사 연구되어 이에 보고하는 바이다. From March 31st to July 31st in 2016, members of an environmental biology club at Seoul High School located in Seocho-gu, Seoul, Dae-Hee Kim, Dong-Woo Park, Jae-Woong Seo and Hyun-woo Lee, collected 20 families 43 genera 53 species of spiders and report the result of the study here.
서재범,강상희,이승재 明知大學校 産業技術硏究所 2002 産業技術硏究所論文集 Vol.21 No.-
In this paper, an algorithm for fault location in Auto Transformer (AT) Feeding Railway system is presented. If a fault occurs at the AT feeding circuits of electrical railway system, it is very important to find fault location and to remove it immediately for the purpose of ensuring safety for transportation. Because the characteristics of reactance - distance are not linear, only using one terminal signals to give fault distance is difficult. In this paper, first, using the KVL, 4 voltage equation are obtained. Secondly, eliminatillg voltage a distance equation which consists of currents at rail and line parameters including mutual effects.
서정희,백재화,염수경 울산대학교 2000 생활과학논문집 Vol.1 No.2
이 논문은 울산광역시를 대상으로 하여 소비자상담업무를 전담하고 있는 행정기관, 민간 소비자단체 및 울산에서 소비자상담을 가장 활발하게 벌리고 있는 백화점 두 곳을 조사대상으로 선정하여 소비자상담실태를 조사하고 문제점과 발전방향을 제시함으로써 울산광역시 소비자행정과 소비자단체를 활성화하고, 백화점의 고객만족경영을 수립하는데 필요한 정보를 제공해 주고자 한다. The purpose of this paper was to provide the information enforcing the consumer support administration in local government, activating private consumer organization and enhancing the customer satisfaction in department store in Ulsan metropolitan city. For this purpose the data of consumer counseling practiced in private consumer organization, local government and department store in Ulsan Metropolitan city during 1998.
서욱장,정선미,고수진,이창근,김재승,임주혁,유빈,문희범 대한핵의학회 2003 핵의학 분자영상 Vol.37 No.5
Purpose: We describe a 54-year-old woman with systemic lupus erythematosus (SLE) who suddenly presented with chorea and had positive antiphospholipid antibodies. F-18 FDG PET showed abnormally increased glucose metabolism in bilateral putamen and primary motor cotex. Tc-99m ECD SPECt also showed abnormally increased regional cerebral blood flow in bilateral putamen. She was treated with corticosteroid and aspirin after which the symptoms improved. Four months later, follow up F-18 FDG PET showed improvement with resolution of hypermetabolism in bilateral putamen. This case suggests that striatal hypermetabolism is associated with chorea in SLE.
Chlorhexidine과 fluoride 성분의 varnish가 타액 내 mutans streptococci 수에 미치는 효과
서정아,김재곤,백병주,양연미,이용희,김상훈 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.4
본 연구의 목적은 chlorhexidine(Cervitec)과 fluoride(Fluor-protector) 성분을 각각 포함한 varnish를 치아에 적용하였을 때 타액내의 mutans streptococci의 수의 감소에 미치는 효과를 알아보기 위한 것이다. 전북대학교 치과대학생 40명을 대상으로 하여 mutans streptococci 균종 수를 평가하였으며, 이들을 무작위로 네 군으로 나누어 다음과 같이 varnish를 적용하였다; A) varnish를 적용하지 않은 군(n=10), B) chlorhexidine varnish 적용군(n=10), C) fluoride varnish 적용군(n=10), D) chlorhexidine과 fluoride varnish를 모두 적용한 군(n=10), Mutans streptococci 수 측정에는 Orion diagnostica 사의 Dentocult SM을 사용하였다. Varnish를 적용하지 않은 상태에서 1차로 Mutans streptococci 수를 측정한 후 각각의 varnish를 적용하였으며, varnish 적용 12주 후 다시 측정하여 기록하였다. 모든 실험군(group B, C, D)에서 12주 후에 측정한 Mutans streptococci 수가 감소한 개체가 증가한 개체보다 많았으나 통계적으로 유의한 차이는 보이지 않았다(p>0.05). 실험에 사용된 어떠한 varnish도 적용 12주 후에 타액 내 mutans streptococci 수에 통계적으로 유의할 만한 변화를 주지는 못하는 것으로 나타났다(p>0.05). The objective of the present prospective trial was to compare the efficacy of chlorhexidine(Cervitec), Fluoride(Fluorprotector) and combination of chlorhexdine and fluoride varnishes in decreasing the level of salivary mutans streptococci. Forty healthy students of school of dentistry, Chonbuk national university were investigated to evaluate mutans streptococci(MS) counts and randomized into four groups to treat with the experimental varnishes: A) untreated group(n=10), B) chlorhexidine group(n=10), C) fluoride group(n=10), D) chlorhexidine and fluoride group(n=10). Dentocult SM^(�)(Orion Diagnostica) strip method was used for measurement of the level of mutans streptococci in saliva. Stimulated saliva were collected at baseline for mutans streptococci counts evaluation(ms1), 12 weeks later the completion of each varnish treatment, mutans streptococci counts were re-evaluated. In varnish group with chlorhexidine, fluoride and combination of chlorhexidine and fluoride, the level of mutans streptococci was lower after 12 weeks than at baseline, but there were no significant differences in saliva(p>0.05), when compared with baseline. After 12 weeks, a remarkable reduction was still found in the subjects with high level of mutans streptococci at baseline, but not different in the low and moderate level of mutans streptococci(p>0.05).
個人用 컴퓨터를 利用한 半導體 素子의 靜特性 測定 裝置의 開發
徐熙敦,李在範,崔再壽 嶺南大學校 工業技術硏究所 1991 연구보고 Vol.19 No.1
These days personal computer has been used in the various fields including scientific study, business management, students' learning and etc.. This paper describes the development of the system that the static characteristics of semiconductor devices can be easily measured by using the personal computer. This system is composed of interface chip, D/A-A/D converters, and measurement terminal. The algorithms representing the characteristic curves on the computer screen are implemented by C-language. In the experiment of electronic circuits, the characteristics of various semiconductor devices can be easily taken by the measurement system developed in this study. Furthermore, it can give enough helping hand in understanding the electronic circuits, and also raise interest and motive about the students' lesson.
인공 신경망을 이용한 화학적 혼합물의 성분 분석을 위한 시스템 설계
서쌍희,이재영 慶南大學校 附設 基礎科學硏究所 1998 硏究論文集 Vol.12 No.-
Digital signal processing techniques adopted in the spectroscopy and its relevant devices for chemical analysis have been improved remarkably these days, which means sufficient sensitivity and accuracy of those analyzing devices can be realized without modification or replacement of those hardware and significant reduction in cost caused by those hardware implementation. The technique to combine conventional linear signal processing algorithm and artificial neural networks provides ability of non-linear signal analysis using recognition capability and adaptability by learning of artificial neural networks, which has been not possible by traditional algorithms. These technique can be also used as automation tools.
Ni-Zn 페라이트의 透磁率과 磁氣抵抗에 미치는 添加物의 影響
강재덕,최희태,서강수,신용진 明知大學校 産業技術硏究所 1990 産業技術硏究所論文集 Vol.9 No.-
This paper is studied on the effects of additive of permeability and magnetic reluctance of Ni-Zn ferrites. Ni-Zn ferrites was composed of 20mo1% NiO, 30mo1% ZnO, 50mo1% Fe₂O₃, and 0.0025n1o1%, 0.005mo1%, 0.01 mol% ??, Bi₂O₃, ?? were used as minor additive Sintering was carried oui at 1100℃. As results from the experiments, the initial permeability was proportional inversely to magnetic reluctance. It was observed that the better magnetic properties of initial permeability anti magnetic reluctance could be achieved by the additive ??.