홈 네트워크에서 스케일러블 어플리케이션 서비스 방법

이윤주(Yun-Ju Lee),임태범(Tae-Beom Lim),김경원(Kyung-Won Kim),문재원(Jae-Won Moon),이석필(Seok-Pil Lee) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

홈 네트워크 상에서 다양한 디지털 기기들 간에 멀티미디어 콘텐츠를 공유/연동하는데 있어, IPTV환경에서 응용프로그램을 비디오, 오디오, 그리고 이미지 파일과 같이 공유/연동할 수 있도록 하는 방법을 제안하고 사용자의 편의성을 증진시키고 시청 환경이 서로 다른 디지털 기기에 동시 적용 가능하며 다양한 시청 환경에 최적화된 사용자 인터페이스를 제공하도록 한다.

사용자 상황 정보 기반 음원 추천 방법

이윤주(Yun-Ju Lee),임태범(Tae-Beom Lim),이석필(Seok-Pil Lee) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

기존의 음원 추천 방법은 사용자 프로파일, 사용자 선호도, 사용자가 오디오 컨텐츠를 재생한 히스토리 목록, 전문가들의 추천 음악 등을 고려하여 각 사용자가 좋아할 만한 음악을 추천해 주는 방법을 사용해 왔다. 이 논문에서는 상황 정보를 이용한 음원 추천 방법을 바탕으로 사용자가 처한 상황을 고려하여 사용자에게 더 큰 만족을 줄 수 있는 음원 추천 방법을 제안한다.

잣나무 (Pinus koraiensis) 목부의 추출성분

이학주,최윤정,최돈하,홍인표 한국목재공학회 2003 목재공학 Vol.31 No.5

잣나무 목부 에탄올 조추출물로부터 7종의 화합물을 단리하였으며, 기기분석 결과 flavonoids인 5-hydroxy-7-methoxyflavone을 비롯하여 chrysin, pinocembrin, pinobanksin, galangin 그리고 stilbenoids 화합물인 3-hydroxy-5-rnothoxystilbene과 pinosylvin으로 각각 동정되었다. Two stilbenoids and five flavonoids were isolated from wood of Pinus Roraiensis(Pinaceae). The chemical structures of isolated compounds were determined as : 5-hydroxy-7-methoxyflavone, chrysin, galangin, pinocembrin, pinobanksin, 3-hydroxy-5-methoxystilbene and pinosylvin on the basis of Mass and NMR spectroscopic data.

공침범으로 제조한 마그네시아 부분안정화 지르코니아 소결체의 특성에 미치는 열처리 효과

이재원,오응주,정윤중,이형복 明知大學校 産業技術硏究所 1989 産業技術硏究所論文集 Vol.8 No.-

The powder of ZrO₂-MgO systems prepared by co-precipitation method using ZrOCl₂· 8H₂O and MgCl₂· 6H₂O as the sintering materials. They are sintered and than heat treated to know that effects of agoing time and temperature on mechanical and electrical properties. The powder ZrO₂-MgO systems have∼30nm crystal size and tetragonal phase. The mechanical properties of these partially stabilized ZrO₂- MgO specimens are shown the best value when they are aged at 1,100℃ for 1 hr and at 1,450℃ for 10 hrs, but these are better than those, and while the specimens of 9.5 mole% in these thermal conditions. Electrical conductivities are measured as a function of temperature in the range of 500℃ to 1,000℃. The temperature dependence of electrical doncutivities is shown the activation energies by the heat reat conditions; no heat treating, heat treating at 1,100℃ for 1 hr, and heat treating at 1,450℃ for 10 hrs, and their values are 21.5㎉/㏖, 34.3㎉/㏖, and 43.5㎉/㏖, respectively.

인터넷 취업알선의 형성배경과 개선방향

윤석천,어수봉,김주일,이재엽 한국항공대학교 경영연구소 2000 경영연구 Vol.7 No.2

인터넷 취업알선은 디지털시대로의 변화에 따라 취업의 새로운 패러다임으로 대두되고 있다. 인터넷 취업알선의 대두를 거래비용이론의 접근에 따르면 탐색비용을 비롯한 거래비용은 줄어드는 대산 도덕적 해이와 역선택 비용은 증가하는 것으로 분석된다. 따라서 인터넷 취업알선이 확산되기 위해서는 두가지 방안이 제시될 수 있다. 단기적으로는 도덕적 해이와 역선택을 축소하기 위하여 개인정보 보호 및 보안 등을 비롯한 시장질서를 정립하는 것이며, 장기적으로는 새로운 비용의 증가분을 담보하는 신뢰의 구축을 위하여 채용부터 인사노무관리 및 해고에 이르기까지 전과정을 수행할 수 있는 인적자원 종합 기업을 육성하고 양성하는 것이다. The internet employment service becomes new paradigm of recruiting in the digital ages. Transaction cost approach explains that emergence of internet employment service results from the reduction of selection and recruiting cost. Because transaction cost is reduced utilizing internet tool, internet employment service becomes very popular. But that service increase the cost of moral hazard and adverse selection. The effective strategy of internet employment service enlargement make, shortly, a rule of internet employment market including solving the security and safety problems. The long term strategy i s developing the human resource firms with the integrated HRM functions in order to basically solve the moral hazard and adverse selection problem by the formation of trust.

유병기간에 따른 한국인 파킨슨병 환자의 영양소 섭취 상태 및 식사의 질에 관한 연구

이주연,안태범,전범석,김윤영,조여원 대한지역사회영양학회 2008 대한지역사회영양학회지 Vol.13 No.4

Both genetic and environmental factors play important roles in the pathogenesis of Parkinson Disease (PD). The contribution of many environmental factors including dietary factor remains unproven. The purpose the study was to investigate the dietary habits, nutrient intake and dietary quality of Korean PD patients according to the duration of disease. PD patients were recruited from K and S university hospitals from May 2005 to January 2006. This study was carried out after approval by the Institute Review Board (IRB). British Brain Bank criteria was used to diagnose PD. The subjects were classified into 2 groups based on the duration of PD: < 25 months and ≥ 25 months groups. General characteristics, anthropometric measurements, food habits and dietary intakes were investigated. The results of this study were as follows: 1) The mean age of < 25 months group (66.9 ± 8.0 yr) was significantly higher than that of ≥ 25 months group (62.2 ± 8.8 yr) (p < 0.05). No significant differences were found for academic background, occupation, living status and social activity, however, numbers of diseases, exercise and family history of PD were significantly different. 2) Anthropometric measurements were not different between the two groups. 3) The frequency of taking snacks was significantly higher in < 25 months group and the amounts of alcohol consumption were significantly higher in ≥ 25 months group. 4) Daily intakes of most nutrients were very low compared with DRI. 5) The MAR score was significantly lower in < 25 months group (p < 0.05;) however, the scores of DVS, DDS and DQI were not significantly different. As a conclusion an overall nutrient intake and dietary quality of the Parkinson's Disease patients need to be improved regardless of duration of the disease and a well-balanced diet should be emphasized.

만성 B형 간염 환자의 급성 악화 후 발생한 피부 결절 다발동맥염과 류마티스관절염

이주현,김민,이준성,장선희,윤보영,이윤우 인제대학교 2009 仁濟醫學 Vol.30 No.-

Cutaneous polyarteritis nodosa(CPAN) is a rare vascular disorder that affects small and medium-sized arteries in the reticular dermis and subcutaneous tissue. It has been described as a distinct clinical entity with benign and a chronic prolonged course without systemic involvement. Hepatitis B virus-related polyarteritis nodosa (HBV-related PAN) is typical form of classic PAN. Its pathogenesis is not well known, but considered an immune complex-mediated disease. The patients with HBV-related PAN often present with malignant hypertension, orchitis, and vascular nephropathy. But, HBV-related CPAN has been rarely reported. Rheumatoid vasculitis is a complication of rheumatoid arthritis that can be lead to variety of clinically significant skin and systemic conditions, It has been reported before or at the time of rheumatoid arthritis diagnosis but is usually seen an average of 10 to 14 years after arthritis onset. The histological features of cutaneous vasculitis in rheumatoid arthritis overlapped both the characteristics of cutaneous necrotizing venulitis and cutaneous polyarteritis nodosa. But polyarteritis nodosa-like rheumatoid vasculitis has rarely been reported. We report a case of rheumatoid arthritis and cutaneous polyarteritis nodosa in a chronic hepatitis B with acute exacerbation.

요양병원 입원환자 평가도구의 타당도와 신뢰도

이지윤,윤주영,장사랑 노인간호학회 2008 노인간호학회지 Vol.10 No.1

Purpose: The purpose of this study was to evaluate the validity and reliability of a patient assessment instrument for patients in long-term care hospitals. Method: The participants in this study were 90 patients admitted to 3 long-term care hospitals. The data were collected in May and June 2007. Criterion related validity of the K-ADL (Korean Activities of Daily Living) was tested using Spearman correlation with the K-MBI (Korean Modified Barthel Index). Inter-rater reliability between two nurses was tested using weighted kappa and agreement percentage. Results: Criterion related validity of the K-ADL with the K-MBI was good with average Spearman correlation coefficient =0.96. Correlation coefficients of items were between 0.63 and 0.96. Inter-rater reliability was satisfactory with the average weighted kappa equal to 0.76. Items with weighted kappa of more than 0.4 numbered 122 (86.5%) and of more than 0.75, 74 (52.5%) Conclusion: The patient assessment instrument for patients in long-term care hospitals is reliable and K-ADL is valid for classifying these patients based on resource utilization, and for quality monitoring indicators.

光電導性 PbS cell製作 및 應用에 關한 硏究

李相潤,徐州燮 慶北大學校 文理科大學 1978 文理學叢 Vol.5 No.-

PbS photoconductive cell for near and intermediate infrared radiation detectors were prepared by the method of chemical deposition. Since they have extremely high sensitivity and the time constant ranges 300㎲(average) They are good enough for the practical application. With use of semiconductor elements, GaAs photoemitting diode and PbS photoconductive cell, as a IR light source and a light detector, ordinary visual photometry is improved to a physical photometry method. The improved Daylight Spectrometer is for the multipurpose: it can be used as a prism spectrometer, a grating spectrometer and refractometer. In view of the above results, we would have good characteristics between the corresponding physical guantities.

iTECH 바닥 슬래브의 시공단계별 진동특성에 관한 연구

이윤경,주영규,윤성원,김도현,김상대 대한건축학회 2005 大韓建築學會論文集 : 構造系 Vol.21 No.3

The story height of the tall buildings is the significant factor due to the limited construction area within the central city such as Seoul. Therefore we developed iTECH(Innovative Technical Economical & Convenient Hybrid) system to reduce story height. Since the top flange of the proposed beam is within the slab, the vibrational characteristics have to be verified by the test. The purpose of this paper is to study on vibration characteristics of floor with iTECH composite system and to evaluate the serviceability. In this research, natural frequency, damping ratio and peak acceleration were measured at experiments for each construction step such as steel erection stage, concrete casting stage and finishing stage. The test results are compared with that of the code. As a result, the proposed composite slab showed enough vibrational characteristics.