사물지능통신 소개 및 발전전망

이윤덕(Yoon-Deock Lee) 한국정보과학회 2010 정보과학회지 Vol.28 No.9

민간임대주택 사업 활성화를 위한 토지임대부 제도의 문제점과 개선방향

이광석(Lee, Kwang-Seok),김지엽(Kim, Jee-Yeop),이윤덕(Lee, Yun-Duk),이수정(Lee, Soo-Jung) 한국도시설계학회 2015 도시설계 : 한국도시설계학회지 Vol.16 No.1

본 연구는 다양한 민간임대주택 사업을 활성화 하기 위한 방안으로 최근 도입된 토지임대부 임대주택사업(이하 “토지임대부 제도”)의 문제점을 도출하고 이에 대한 개선방향을 제시하고자 하였다. 이를 위해, 본 연구는 강서구 등촌동 공공기관 이전적지 내 348세대 규모의 임대주택을 건설하는 사업의 시뮬레이션을 통해 사업성을 분석하였고, 그 결과 토지임대료가 2% 이하로 낮아진 상태에 한해서만 사업이 가능한 수익률을 보이는 것으로 나타나 저렴한 토지확보와 건설자금 조달 여부가 사업성 확보에 핵심적인 요인임을 도출하였다. 이를 토대로, 본 연구에서 분석한 문제점과 제시된 개선방향은 다음과 같다. 첫째, 사업성을 일정 수준 유지하기 위해서는 토지주에게 납부하는 토지임대료가 저렴해야 하는데, 이를 위해 공공은 공공시설 이전적지 등 저렴한 토지확보를 지원하거나, 노후도 조건 완화 등 인허가 절차를 용이하게 해 줄 필요가 있다. 둘째, 건설비 조달 부담을 완화시킬 수 있는 공공의 지원이 필요하다. 이를 위해 국민주택기금이 건설단계에서 지원되는 것이 바람직하고, 사업 중단 시 공공의 잔여가치 인수 확약을 통해 사업자의 신용을 지원하여 원활한 자금확보를 뒷받침해 줄 필요가 있다. 셋째, 사업자의 주택관리 부담을 완화하고 양질의 임대주택들이 자리잡기 위해 전문임대관리업체의 사업 참여가 필요하다. The Korean and Seoul Metropolitan governments are trying to encourage private rental housing developments in response to the paradigm shift of the Korean housing market. Among other things, the land-leasehold program has been adopted under the Rental Housing Act. This paper aims at analyzing the program and proposing the improvement schemes through a project simulation applying the program on a site. As a result, it found that the most important factor for a successful project is the provision of a cheap and proper capital. The major findings are as follows. First, the public sector need to help a developer get an affordable public land, or alleviate burden for permit process. Second, public financial resources, such as the National Housing Fund, need to be provided to a developer. Plus, it would be desirable if the public sector could support a credit for a developer to get a loan. Third, a real estate management firm should participate in a project because it can alleviate cost for management.

리더 간섭에 의한 RFID 시스템의 인식 거리 감소에 관한 연구

이윤덕,김도윤,윤현구,육종관,장병준,Lee, Yoon-Deock,Kim, Do-Yun,Yoon, Hyun-Goo,Yook, Jong-Gwan,Jang, Byung-Jun 한국전자파학회 2007 한국전자파학회논문지 Vol.18 No.7

최근 UHF 대역에서 동작하는 RFID 시스템이 활발히 연구되고 있으며, 유통 물류 분야를 시작으로 다양한 분야에서 사용되고 있다. 본 연구에서는 UHF RFID 시스템의 주파수 간섭 중 RFID 시스템 설계시 가장 문제가 되고 있는 리더간 간섭을 인식 거리 측면에서 분석하였다. RFID 주파수 간섭를 정량적으로 분석하기 위하여 새로운 성능 지표로 IRRR을 정의하고, IRRR의 유용성을 보이기 위해 두 개의 RFID 리더와 하나의 태그로 구성된 측정 시스템을 구성하여 IRRR이 실제 환경의 특성을 반영하고 있음을 확인하였다. 따라서, 실제 다양한 RFID 시스템을 설치할 때 IRRR을 설계 파라미터로 사용함으로써 주파수 간섭 문제를 해결할 수 있을 것이다. Recently UHF RFID system has drawn a great deal of attention because of its potential to revolutionize supply chain management. In this article, RFID reader-to-reader interference is analyzed in terms of interrogation range. For evaluating RFID interference quantitatively, the new figure-of-merit, IRRR, is defined. In order to show the usefulness of IRRR, calculated IRRR is verified by measurement using two RFID readers and a tag in multiple-reader environment. IRRR can be referred to an important design parameter to analyze more complex interfering problems in actual RFID system deployments.

텔레매틱스 정책과 기술로드맵 추진방향

이윤덕,한은영,Lee, Yun-Deok,Han, Eun-Yeong 대한전자공학회 2006 전자공학회지 Vol.33 No.10

텔레매틱스 동향 및 기술개발 방향

안선일(Sun-il Ahn),장병준(Byung-jun Jang),이윤덕(Yoon-deock Lee) 한국정보과학회 2005 정보과학회지 Vol.23 No.2

RFID/USN 기술개발 동향

장병준(Byung-jun Jang),안선일(Sun-il Ahn),이윤덕(Yoon-deock Lee) 한국정보과학회 2005 정보과학회지 Vol.23 No.2

RFID기반 디지털 컨텐츠 인증 기법

양정규(Jung-Kyu Yang),배성우(Sung-Woo Bae),정명섭(Myung-Sub Jeong),이재문(Jae-Moon Lee),김준형(Jun-Hyung Kim),이윤덕(Yoon-Deock Lee),장윤석(Yoon-Seok Chang),오하령(Ha-Ryoung Oh),성영락(Yeong-Rak Seong),박준석(Jun-Seok Park) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.7(초록집)

유선질환에서 Secretory Component와 Carcinoembryonic Antigen 출현도에 관한 관찰

이윤덕,장자준,송계용,유재형 중앙대학교 의과대학 의과학연구소 1987 中央醫大誌 Vol.12 No.1

To observe the reaction and relationship between the secretory component(SC) and the carcinoembryonic antigen(CEA) in the mammary diseaes, immounohistochemical studies were carried out. The studies consisted of 15 cases of infiltrating ductal carcinoma,5 cases of infiltrating colloid carcinoma, 10 cases of fibroadenoma and 15 cases of mammary dysplasia. The results were as follows: 1. Moderately or strongly positive reaction of CEA and weakly poaitive reaction of SC were observed in infiltrating ductal carcinoma. 2. Weakly poitive reactions of CEA and SC were observed in infiltrating colloid carcinoma. 3. Weakly poitive reactions of CEA and moderately positive reaction of SC were observed in infibroadenoma. 4. Weakly poitive reactions of CEA and moderately positive reaction of SC were observed in mammary dysplasia. 5. Therefore, reactivities of CEA were more increased in the carcinoma than benign condition of the breast in comtrasr with those of the SC which were more dominant in reactive or benign tumorous condition than in carconoma, suggesting dedifferentiation to the embryonal stage of carcinoma cells.

국산 Disposable Infusion Pump 내에서의 5-Fluorouracil의 안정성

이윤덕,김은경,김재연,노환성 한국병원약사회 1999 병원약사회지 Vol.16 No.1

The small, portable pump has given much-needed mobility to patients receiving prolonged continuous and intermittent infusion therapy. By using these devices, patients have been able to return to the familiar surroundings of home, family, and friends. In some cases, patients may even return to the work place while receiving therapy. One group of drug that is currently being administered by portable infusion pumps is the antineoplastic agents. The purpose of this study was to determine the effects of temperature, drug concentration, and flow rate of 5-fluorouracil in portable infusion pump. Commercially available fluorouracil aqueous solution (50㎎/㎖) was used. Drug reservoirs of portable infusion pumps were filled with 84㎖ of fluorouracil and 16.4㎖ of fluorouracil and 67.6㎖ D5W injection. Under conditions simulating actual use, the reservoirs were attached to the pumps and the solutions were pumped at a rate of 0.5㎖/hr over a seven-day period at 4℃, 25℃, 37℃. Samples at the distal end of extension tubing were collected at 24-hour intervals. Visual observation was made immediately to look for precipitation. Drug concentration was determined by UV-spectrophotometer (266㎚). Precipitate was not observed in all samples after two weeks. Under infusion conditions, no apparent changes in concentration.

태아 및 성인의 간에서 Glutathione S-Transferase출현도에 관한 면역조직화학적 관찰

송계용,이윤덕,박상철 중앙대학교 의과대학 의과학연구소 1993 中央醫大誌 Vol.18 No.3

Both acidic placental form(GST-Pi) and basic liver form(GST-L ) of human glutathione S-transferase were studied in the developing, normal and abnormal livers using immunohistochemical peroxidase and antiperoxidase method. Time of appearance, temporal change of the activity and distribution pattern were particularly examined using 27 cases of human fetuses of ranging in age from 12 to 32 gestation weeks, 5 cases of normal infant as well as 12 cases of cirrhosis or carcinomas of the liver. The results were as follows; 1. Expression of the GST-Pi in the liver was weak in fetuses between 12 to 16 weeks but became conspicuous between 17 to 21 weeks and then it decreased to show weak posititivy between 24 to 32 weeks. The staining reaction was mild in childhood and adult livers. Meanwhile GST-L was stained weakly in fetuses between 12 to 13 weeks but became conspicuous from 14th week and of staining reaction was mild to moderate noted thereafter, in childhood and adult. 2. Expression of the GST-Pi in the bile ducts was weak in fetus between 12 to 16 weeks and became conspicuous in 17 to 24 weeks and stained strongly between 26 to 32 weeks and the strong of reaction was noted in childhood and adult intrahepatie bild ducts. GST-L was not demonstrated through the fetal period from 12 to 32 weeks but weakly positive in the large bile duct epithelium of childhood and adult. 3.Expression of the GST-Pi was the same degree of positivity as the normal in the hepatocytes and bile ducts adjacent to the hepatocellular carcinoma. GST-Pi showed moderately in the hepatocytes of regenerating nodule and adjacent proliferatinf bile ducts. It was weak to strong in trabe cular and acinar hepatocellular hepatoblastoma. Meanwhile, GST-L was of positive as the normal hepatocytes and bild ducts adjacent to the hepatocellular carcinoma of the liver. GST-L is weakly positive in regenerating nodule and weak to moderate in trabecular hepatocellular caricinoma, and negligible in acinar type. In conclusion, It was suggested that maturation and distribution pattern of GST-Pi and GST-L are significantly different between normal and neoplastic condition, and a possibility of dianostic application of isozymes of glutathione S-transferase in the differential diagnosis of neoplasms of hepatobiliary system could be raised.