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노상규,안정남,원정호,정송,Rho, Sang-Kyu,An, Jung-Nam,Won, Jung-Ho,Jung, Song 한국디지털정책학회 2003 디지털융복합연구 Vol.1 No.1
The quality of Internet services such as VOD and Web storage services deteriorates as the number of users increases beyond a certain point. However, most of the pricing mechanisms in research as well as those in practice do not reflect such situations (i.e., congestion). The purpose of this paper is to show that different types of pricing mechanisms are required and to model such situations using game theory. We extend Fishburn & Odlyzko(1999) model, in which the service quality is the same for the different pricing schemes, to reflect the situations where the service quality is different between the different pricing schemes due to congestion.
이연희 ( Yeonhee Lee ),유연실 ( Yeonsil Yu ),안정남 ( Jung Nam An ),이정표 ( Jung Pyo Lee ),임춘수 ( Chun Soo Lim ),오윤규 ( Yun Kyu Oh ) 대한내과학회 2017 대한내과학회지 Vol.92 No.1
급성 크롬산 중독은 드물지만 다양한 경로로 흡수되어 치명적인 독성을 유발할 수 있다. 저자들은 비교적 적은 범위의 크롬산에 의한 피부 화상 후 발생한 급성 신손상을 진단하고 혈액투석을 포함한 치료로 호전된 증례를 경험하여 문헌고찰과 함께 이를 보고하는 바이다. The metal chromium is widely used in industry. Hexavalent chromium is a strong oxidizing agent, and exposure to some hexavalent compounds can cause serious problems, such as skin ulcers, acute gastroenteritis, acute tubular necrosis with renal failure, and hepatic necrosis. We report a case of acute kidney injury following skin exposure to hexavalent chromium, which burned a relatively small percentage of the total body surface area (TBSA). A 49-year-old man developed oliguria and acute kidney injury 3 days after burning about 5% of his TBSA with chromic acid solution, causing second- to third-degree chemical burns. His creatinine level increased to 12.5 mg/dL. The patient underwent hemodialysis with supportive care. His renal function improved and the dialysis was discontinued. The serum and urine chromium concentrations also decreased. (Korean J Med 2017;92:70-73)