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SOHO 환경을 위한 효율적인 VoIP 단말 관리 기법 설계 및 구현
진상우,경계현,고광선,엄영익,Jin, Sang-Woo,Gyeong, Gye-Hyeon,Ko, Kwang-Sun,Eom, Young-Ik 한국정보처리학회 2008 정보처리학회논문지 C : 정보통신,정보보안 Vol.15 No.2
인터넷 전화는 VoIP를 이용하는 전화 방식으로서 VoIP 단말이 인터넷에 연결되어 있다면 저렴한 요금과 다양한 부가서비스가 가능한 방식이다. 하지만 인터넷 전화를 관리하기 위한 시스템들은 대규모의 VoIP 서비스 사업자들이나 대기업에서의 사용을 목적으로 하여 개발되어 오면서 설치 및 관리의 편의성 부분이 결여되어 있으며, 이러한 문제점들은 VoIP 단말 설치를 어렵게 하여 인터넷 전화 보급에 장애가 되어 왔다. 본 논문에서는 이러한 문제를 해결하고자 VoIP 단말들의 설정 관리를 목적으로 하는 자동 프로비저닝 시스템을 설계하고 구현한다. 이 시스템은 SOHO 환경과 같이 소규모 VoIP 환경에서 VoIP 단말들을 쉽게 설치하고 관리할 수 있도록 지원한다. Internet telephone uses VoIP as its communication protocol, where it provides various additional services with inexpensive fare when the terminal is connected to the Internet. The existing auto provisioning systems that manage Internet telephone terminals are targeting large size VoIP service providers or enterprises, and has few consideration on the convenience of management for small size environments. The difficult installation and management procedures of the current auto provisioning systems prevents Internet telephone system from getting popular. Easy installation and management system is needed in order to spread out Internet telephone system. In this paper, we design and implement the auto provisioning system that provides easy installation and management services in small size environments such as SOHO environments.
Analysis of Pre-education Needs for Educational Service Activities of Pre-service Teachers
진상우,최미정 한국엔터테인먼트산업학회 2023 한국엔터테인먼트산업학회논문지 Vol.17 No.5
Background/Objectives: The Ministry of Education allocated two credits to educational service activities in teaching professional process and demanded that systematic activities be carried out. This study was conducted to find out the difficulties of pre-service teachers in educational service activities and to investigate the demand for prior education necessary for effective educational service activities. In order to achieve this purpose, survey methods and focus group interview were conducted. Methods/Statistical analysis: The collected quantitative data were statistically analysed using the SPSS/WIN 24.0 program. Interview materials were categorized around words, events, and relationships that appeared repeatedly or in common, and classified words and topics went through the process of reading and reasoning transcribed data, and re-examined by research participants for the accuracy and validity of the analysis. Findings: Based on the quantitative and qualitative research results, a pre-education model for educational service activities was presented. The contents of prior education can be largely divided into institution guidance and basic education as an instructor. In institutional guide, contents such as service period, role of educational service, and cooperation with staffs of institutions were introduced, and basic communication, basic teaching skills, and student guidance were presented as basic education as a teacher. For effective and systematic educational service activities, research on pre-education and education of during and after service should be continued for those who pre-service teachers.
변형된 M 피판과 최소한의 피부이식을 이용한 합지증의 교정
진상우,조동인,오정근,황원중,안희창,김정태 대한성형외과학회 2003 Archives of Plastic Surgery Vol.30 No.4
The principles of syndactyly correction are well established at the present time, such as the creation of dorsal and/or palmar rectangular flaps designed to reconstruct the web space, the utilization of zigzag incisions along the full length of the syndactyly to avoid contraction that might follow a straight line closure, and skin grafts to cover raw surfaces. Although numerous operative techniques based on the above principles have been introduced, most of them required skin graft inevitably because the separated fingers have a greater surface area than the syndactylized digits. The grafted hyperpigmented skin makes the finger and toe noticeable and the multiple small pieces of skin graft themselves are time-consuming procedure, and the grafted skin near the base of fingers could cause future recurrence or contracture. So we tried to develop a modified technique which could minimize the case of skin grafts by using regional skin as much as possible. A new method that we present here is a combination of first, a diverging M flap from syndactilized digital skin for commissure, second, an island flap from ventral or dorsal surface of the hand and foot to cover the raw surface at the base of divided digit, and third, the removal of fat tissue around the neurovascular bundles of the fingers for primary closure with flaps without tension at least in one digit. 11 patients composed of 5 hands and 16 feet syndactylies were operated for their correction with newly modified technique for 4 years. A long term follow-up indicates that gratifying functional and aesthetic results could be achieved without recurrences or disabling contractures of the interdigital space. This easy and rapid technique can be recommended for the correction of syndactyly because of its advantage of minimizing the problems appeared in cases by previous methods.
三白草根이 Nitric Oxide (NO) 매개에 의한 腹腔 大食細胞의 形態 變化에 대한 硏究
秦尙佑,朴星珠,辛民敎,宋昊埈 대한본초학회 1997 大韓本草學會誌 Vol.12 No.2
RIZOMA SAURURI (RS) has been known to use antiinflammatory drug. To investigated the mechinism of RS-induced Peritoneal Macrophage activation, I examineded the ability of morphological change of Peritoneal Macrophages by RS. RS alone had only a small effect, whereas in combination with rIFN-γ markedly increased NO synthesis in a dose dependent manner. RS potently increased TNF-α secretion in Peritoneal Macrophages. In conclusion, RS induced the morphological change of the Peritoneal Macrophages through NO.