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양동혁(Yang Dong-Hyuk),도양회(Doh Yang-Hoi),좌정우(Jwa Jeong-Woo),김호찬(Kim Ho-Chan),부창진(Boo Chang-Jin),고성택(Ko Sung-Taek) 한국콘텐츠학회 2006 한국콘텐츠학회 종합학술대회 논문집 Vol.4 No.2
문자메시지는 이동통신망에서 무선 데이터 서비스를 위해 가장 널리 사용되는 서비스이다. CDMA 이동통신망에서는 문자메시지 서비스는 한번에 50자의 한글을 전송할 수 있다. 문자메시지 서비스가 일반화되고 MIDI, MP3 등의 멀티미디어 기능을 갖는 칼라 휴대폰이 보급됨에 따라 이동통신사업자는 멀티미디어 메시지를 문자메시지와 같이 P2P로 전송할 수 있는 MMS(Multimedia Massage Service)를 표준화하고 서비스하고 있다. MMS는 문자메시지와 같이 이동통신사업자의 비음성 서비스의 주요 매출 원으로 역할을 할 것으로 기대되고 있다. MMS가 활성화되면 MMS에 첨부되는 멀티미디어 콘텐츠의 저작권을 보호하기 위한 방안이 마련되어야 할 것이다. 본 논문에서는 MMS 시스템의 변경을 최소화하면서 콘텐츠 저작권 보호를 위한 DRM이 적용된 MMS DRM 시스템을 제안한다. 제안된 MMS DRM 시스템은 DRM Packager, DRM Server, DRM Agent를 통하여 MMS에 첨부된 멀티미디어 콘텐츠를 보호하고 다양한 사업모델을 지원할 수 있도록 하여 MMS 활성화에 기여할 것이다. Short message service (SMS) is a popular mobile data service in cellular networks. One SMS message can carry 50 Korean alphabets. Cellular operators standard and develop multimedia message service (MMS) based on P2P as color phones having multimedia solutions such as MIDI, MP3, JPG, PNG, and MPEG have been developed. MMS can be a key cash flow in the non-voice mobile revenue together with SMS. Copyrights protection of contents in a MMS message can be issued as MMS can be the popular P2P service such as MMS. In this paper, we propose MMS DRM system to protect copyrights of contents in MMS with the minimum change of MMS system. The proposed MMS DRM system protect copyrights of contents using DRM Packager, DRM Server, and DRM Agent and support various use cases to activates MMS in mobile networks.
남해성 ( Hae Seong Nam ),양동혁 ( Dong Hyuk Yang ),김정수 ( Jeong Soo Kim ),김현정 ( Hyun Jung Kim ),이현규 ( Hyeon Gyu Yi ),이경희 ( Kyung Hee Lee ),조재화 ( Jae Hwa Cho ),윤용한 ( Yong Han Yoon ),곽승민 ( Seung Min Kwak ),이홍렬 대한결핵 및 호흡기학회 2010 Tuberculosis and Respiratory Diseases Vol.68 No.3
Slowly growing lung cancers are quite rare and the leading cause of length time bias and over-diagnosis bias in lung cancer screening. We report 6 cases of slowly growing lung cancer in a tertiary hospital between January 1999 and December 2008. The clinical characteristics of these 6 cases with slowly growing lung cancer were examined. The median age at diagnosis was 68 years (range, 49∼72), and 5 patients (83%) were female. The most common histology type was adenocarcinoma (83%). After excluding two patients who showed no change in the tumor size, the median tumor doubling time was 189 months (range, 86∼387). The proportion of patients with slowly growing lung cancer appears to be particularly large in women, especially among patients with adenocarcinoma. Our experience shows that slowly growly lung cancers are more heterogeneous and diverse.
태음조위탕(太陰調胃湯)과 태음조위배마황탕(太陰調胃培麻黃湯)이 비만 흰쥐에 미치는 영향
최찬헌 ( Chan Hun Choi ),양동혁 ( Dong Hyuk Yang ),김재현 ( Chae Hyun Kim ),정종길 ( Jong Gil Jung ),정현우 ( Hyun Woo Jung ) 대한본초학회 2010 大韓本草學會誌 Vol.25 No.3
Objective: The aim of this study is to investigate the effects of Taeyeumjoweetang (TJT) and Taeyeumjoweebaemahwangtang (TJBM) medication on body weight change and serum total cholesterol, HDL cholesterol, LDL cholesterol, triglyceride, free fatty acid, total lipid, phospholipid level, and CBC of obese rats. Methods: Obese rats induced by high-fat fed are medicated for 7 weeks. 32 rats are divided into four groups depending on the medication; normal group (general-fat fed and no-medication), control group (high-fat fed and no medication), TJT group (high-fat fed and TJT medication) and TJBM group (high-fat fed and TJBM medication). After 7 weeks, obesity related index and CBC are analysed. Results: There is a significant statistical difference between control group and TJBM group for the body weight change, the total cholesterol, HDL cholesterol, and triglyceride level: total cholesterol values of control and TJBM are 59.25±9.56㎎/㎗ and 39.13±9.08㎎/㎗, respectively; HDL cholesterol values of control and TJBM are 22.0±1.69㎎/㎗ and 13.75±2.19㎎/㎗, respectively; triglyceride values of control and TJBM are 12.75±3.37㎎/㎗ and TJBM: 8.13±1.64㎎/㎗, respectively. There is a significant statistical difference between control group, TJT, and TJBM group for free fatty acid and phospholipid level: free fatty acid values of control, TJT, and TJBM are 936.25±89.59㎛/ℓ, 738.75±109.47㎛/ℓ, and 720±150.71㎛/ℓ, respectively; phospholipid values of Control, TJT, and TJBM are 87.13±11.86㎎/㎗, 70.5±12.22㎎/㎗, and 60.5±11.1㎎/㎗, respectively. Conclusion: These results suggest that medication of TJT and TJBM is effective for the treatment of obesity. Especially, TJBM is more effective than TJT.
혈액투석 중 저혈당 빈발 말기신부전증 환자에서 인슐린 유사물질 사용 예
송준호 ( Joon Ho Song ),이승우 ( Seoung Woo Lee ),홍성빈 ( Seong Bin Hong ),장지훈 ( Ji Hun Jang ),김경은 ( Gyung Eun Kim ),한주영 ( Ju Young Han ),양동혁 ( Dong Hyuk Yang ) 대한내과학회 2012 대한내과학회지 Vol.83 No.5
Day-to-day insulin requirements often change due to subtle variations in insulin metabolism in patients with type 2 diabetes undergoing hemodialysis. In such cases, intra-hemodialysis hypoglycemia frequently occurs and is a main factor interfering with the delivery of dialysis. As a result, it reduces the quality of life in patients undergoing hemodialysis. The long-acting insulin analogue glargine provides peakless, continuous release over 24 h that approximates a normal basal insulin pattern. Because it has no peak, its use in patients with diabetes undergoing hemodialysis would hypothetically be useful. Specifically, patients would be able to avoid intra-hemodialysis hypoglycemia without the necessity of skipping insulin administration on the day of hemodialysis and achieving adequate glucose control on other days. We recently experienced six cases that switched from treatment with intermediate-acting insulin to a long-acting insulin analogue, which provided better glycemic control by reducing hypoglycemia risk. Limited data are available in the literature concerning insulin analogue usage in patients with diabetes undergoing hemodialysis. Our experience suggests a large-scale prospective investigation is required on this issue. (Korean J Med 2012; 83:647-653)