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부산대학교 치과병원 소아치과에서 시행된 전신마취 하 치과치료
이형직(Hyeongjik Lee),조안나(Anna Jo),김은정(Eun Jung Kim),김지연(Jiyeon Kim),정태성(Taesung Jeong) Asia association of Disability and Oral health 2018 International Journal of Disability and Oral Healt Vol.14 No.1
General anesthesia is an effective behavior management method for disabled patients or uncooperative children who have difficulty in cooperation. The objective of this study was to assess and analyze dental treatment under general anesthesia in department of pediatric dentistry at Pusan National University Dental Hospital for 5 years. One hundred and nine cases of general anesthesia from June 2013 to May 2018 were surveyed for this study. Patients’ distribution, reasons for general anesthesia, treatment pattern, agents for general anesthesia, duration of treatment, and visiting route were assessed. The proportion of male was higher than female and age group of 5 to 9 was highest. Reasons for general anesthesia were handicapped situations with or without systemic disease(52%), operative treatment needs(13.2%), uncooperative(15%) and others(29.8%). Most used agents for general anesthesia were thiopental sodium and sevoflurane. Dental treatment under general anesthesia for handicapped and uncooperative children has been increasing. Therefore, it is important to improve the system and efficiency of general anesthesia to provide satisfactory treatment.
표준인터넷접속조건 내 네트워크 간접연동 효과 측정을 위한 평가대안의 실증분석
이광희(Kwanghee Lee),정선구(Seonkoo Jeong),이형직(Hyeongjik Lee) 대한산업공학회 2018 대한산업공학회지 Vol.44 No.6
The domestic IP interconnection policy, which has been discussed for a long time since the institutionalization of Internet interconnection in 2005, undergoes a major change from 2014. Originally, tier distinction and IP interconnection rates was determined based on the consultation between ISPs. Since the Revision of Interconnection Standard for Telecommunications Facilities (No. 2014-73), the determination on tier distinction is based the Standard IP Interconnection Conditions. The Standard IP Interconnection Conditions are used as criteria for determining tier distinction among ISPs who are interested in participating in the Internet interconnection. It consists of various items such as the number of subscribers and network size to evaluate network externality. Interconnection Interworking Capacity, one item of the Standard IP Interconnection Conditions, is used to measure the ‘network of network’ effect. In this study, the existing method for evaluating Interconnection Interwoking Capacity refers to the problem that can overestimate the network effect that the connection provider can offer, and suggests alternatives that can improve it. Finally, the results of a comparison of evaluation alternatives based on traffic exchange data of ISPs are presented.