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수도권지역 치과병,의원 치과의료인력의 커뮤니케이션에 관한 인식
강종오 ( Jong Oh Kang ),김지현 ( Ji Hyun Kim ),황지민 ( Ji Min Hwang ),권하정 ( Ha Jeong Kwon ),성정민 ( Jeong Min Seong ),이선경 ( Sun Kyoung Lee ),김창희 ( Chang Hee Kim ),김혜영 ( Hae Young Kim ),조영식 ( Young Sik Cho ),박용덕 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.3
Objectives. The purpose of this study was to help ensure smooth and efficient internal communication among dentists, dental hygienists and dental laboratories in dental clinics and hospitals in an effort to boost their job satisfaction and the satisfaction of patients with dental services. Methods. The subjects in this study were the dentists and dental hygienists in 380 dental clinics and hospitals that registered with Korean Dental Association and were selected by stratified random sampling from Seoul, Incheon and Gyeonggi Province in consideration of the number of dental institutions located in the regions. A survey was conducted from December, 2008, to March, 2009, by male, by fax and in person. The response rate stood at 60.2 percent. The answer sheets from 430 participants who included 201 dentists and 229 dental hygienists were analyzed with a SPSS 12.0 program. Results. As for the level of smooth communication in the dental treatment room and the amount of efforts for that, the dental hygienists took a slightly better view than the dentists (p=0.019). Many of dentists who tried to have smooth communication in the dental treatment room pointed out a lot of conversation as the best effort for that (47.4%), and lots of the dental hygienists stressed the same as well (70.1%). In regard to the relationship of age to the level of smooth communication in dental laboratories and the amount of efforts for that, the dentists (p=0.005) and dental hygienists (p=0.001) who were at the age of 40 and up had the highest opinions. Conclusions. The departments of dentistry and dental hygiene should offer courses on medical communication and internal communication in dental clinics and hospitals to provide education about communication skills, and related teaching methods and teaching aids should be developed to improve the communicative competency of dental personnels.
강종오(Jong O Kang),이온유(Onyou Lee),김준일(Junil Kim),방승민(Seungmin Bang),이홍석(Hongseok Lee),이종득(Jong Doug Lee),강형구(Hyoungku Kang) 대한전기학회 2014 전기학회논문지 P Vol.63 No.4
Recently in accordance with the rapid development of the industrial society, the accidents caused by dielectric breakdown have been increasing in power grid. It is important to prevent the dielectric breakdown of a high voltage apparatus to reduce the damage from electrical hazards. To establish an electrically reliable database of insulation design criteria for high voltage apparatus, a study on dielectric characteristics test is indispensable. In this study, dielectric characteristics according to field utilization factors (ξ) which are represented as the ratio of mean electric field to maximum electric field are investigated. the dielectric breakdown experiments by using several kinds of electrode systems made with stainless steel are performed by AC breakdown voltage under air-insulation. Also, the experimental results are analyzed by the Weibull distribution. As a result, it is found that the dielectric characteristics of air-insulation are determined by ξ as well as arrangement of electrode systems. It is considered that the results of this study would be applicable to designing the air-insulated high voltage apparatuses.
주우석(Joo Woo Seok),강종오(Kang Jong Oh) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.8
Compared with previous compression methods, fractal image compression drastically increases compression rate by using block-based encoding. Although decompression can be done in real time even with softwares, the most serious problem in utilizing the fractal method is the time required for the encoding. In this paper, we propose and verify i) an algorithm that reduces the encoding time by reducing the number of similarity searching on the basis of dimensional informations, and ii) an algorithm that enhances the quality of the restored image on the basis of brightness and contrast information. Finally, a method that enables fast compression with little quality degradation is proposed.
친환경 고전압 전력기기 개발을 위한 GN₂의 절연특성 분석
방승민(Seungmin Bang),이온유(Onyou Lee),김준일(Junil Kim),강종오(Jong O Kang),이홍석(Hongseok Lee),고태국(Taekuk Ko),강형구(Hyoungku Kang) 대한전기학회 2014 전기학회논문지 P Vol.63 No.4
The environmental pollution caused by green-house gases such as GN₂ has been becoming the main issue of industrial society. As a part of these efforts, 180 countries signed the Kyoto Protocol in 1997 to cut back on their green-house gas emissions [1]. Therefore, a study on the dielectric characteristics of the GN₂ is important for designing a eco-friendly high voltage apparatuses. In this paper, to develop an electrically reliable, stable, and eco-friendly high voltage apparatus, the breakdown voltage and partial discharge inception voltage characteristics in GN₂ considering utilization factors are studied for the establishment of insulation design criteria of an high voltage apparatus. Dielectric experiments are performed by using several kinds of sphere-plane electrode systems made of stainless steel. Also, the dielectric characteristics of the GN₂ are analyzed by using a Finite Elements Method ( FEM ) according to various field utilization factors. The results are expected to be applicable to designing the high voltage apparatuses using GN₂ as an insulation gas.
배전용 전력 케이블을 위한 비-가교 폴리올레핀 재질의 절연특성 연구
김준일(Junil Kim),이온유(Onyou Lee),방승민(Seungmin Bang),강종오(Jong O Kang),이홍석(Hongseok Lee),정영호(Yeong-Ho Jeong),강형구(Hyoungku Kang) 대한전기학회 2014 전기학회논문지 P Vol.63 No.4
A cross linked polyethylene (XLPE) material has been widely used to develop a distribution power cable due to its excellent electrical characteristics and mechanical strength. However, several problems such as environmental disruption, electrical aging, thermosetting property, and impurities which cause degradation also arise. Therefore, a novel dielectric material should be developed to substitute for the XLPE. Several kinds of polyolefin materials to substitute for the conventional dielectric material, XLPE are developed and A cylindrical rod to cylindrical rod electrode system made with stainless steel is used to perform the experiments according to the ASTM D-149 protocol under an AC and Impulse input voltage condition. The experimental results are calculated by the Weibull distribution method and analyzed by an Finite Element Method(FEM). Finally, the dielectric characteristics of the conventional XLPE and novel polyolefin are experimented compared with each other in this study.