http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정석인,황정웅,민연기,천영덕,조용걸 대한혈관외과학회 2001 Vascular Specialist International Vol.17 No.1
Purpose: As traffic accidents and invasive vascular procedures are increasing these days so are vascular trauma, either blunt or penetrating. So we investigated the changes of clinical status of vascular trauma for the last 10 years. Method: We retrospectively reviewed the medical records of 121 patients who had admitted and operated at Korea University Hospital due to traumatic arterial injuries from 1990 to 1999. We divided those patients by period into two groups; Era 1 (1990~1994) and Era 2 (1995~1999). The former group included 51 patients, the latter 70. Age distribution, causes of injury, location, degrees of injury, amputation rate, mortality rate, and operation methods between these two groups were compared. Result: The most common cause of arterial injury was blunt trauma by traffic accident in Era 1, injury by broken glasses in Era 2. Iatrogenic injury cases increased (from 3.9% in Era 1 to 10% in Era 2), and so did industrial injuries. Two groups also show similar distribution of degrees and location of injuries. Amputation rate in cases of vascular trauma of lower extremities correlates with combined fracture in both group (p$lt;0.05). Amputation rate was 35.5% in Era 1, and 23.5% in Era 2. The mortality rate was 15.7% in Era 1 and 12.9% in Era 2 (p$gt;0.05). Each group presented statistically significant correlation between location of injury and mortality (p$lt;0.05). Abdominal injury was related to high mortality rate (63.2%). Conclusion: The latter period (Era 2) showed increased iatrogenic injury rate compared to the former. Amputation rate increased when combined with fracture in both groups, but mortality rate didn't significantly change between these two groups.
정석인,한억수,한현수 한국전자통신연구원 2014 ETRI Journal Vol.36 No.6
Technological advances made with the development ofdigital technology and the Internet have led to theemergence and evolution of digital convergence — theintegration of media and communications. This, in turn,has led to the creation of the representative broadcastand communication convergence business model (IPTVservice). This study examines the consumption patternsand behaviors of IPTV service customers and explores theprocess of their continuous use of the IPTV service,thereby endeavoring to contribute to the diffusion ofdigital convergence services. To survey customers’continuous use of the IPTV service, this study first designsa research framework based on an examination of theexisting literature on satisfaction, loyalty, and so on. Inaddition, research is conducted on the switching barrier ofthe method of consolidating customers’ adherence to agiven IPTV service by increasing the burden on them,thereby developing a final research model with which toattempt yet another heterogeneous approach. This enablesnot only an analysis of the causal relationship withantecedent variables but also a measurement of theexplanatory contribution of the antecedent variables’ subvariables.