正常成人에서 perphenazine의 prolactin分泌 效果에 대한 benztropine mesylate의 影響

吳世元,申柾浩 최신의학사 1985 最新醫學 Vol.28 No.1

Altered White Matter Integrity in Human Immunodeficiency Virus-Associated Neurocognitive Disorder: A Tract-Based Spatial Statistics Study

오세원,신나영,최준용,이승구,Mi Rim Bang 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.3

Objective: Human immunodeficiency virus (HIV) infection has been known to damage the microstructural integrity of white matter (WM). However, only a few studies have assessed the brain regions in HIV-associated neurocognitive disorders (HAND) with diffusion tensor imaging (DTI). Therefore, we sought to compare the DTI data between HIV patients with and without HAND using tract-based spatial statistics (TBSS). Materials and Methods: Twenty-two HIV-infected patients (10 with HAND and 12 without HAND) and 11 healthy controls (HC) were enrolled in this study. A whole-brain analysis of fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity was performed with TBSS and a subsequent 20 tract-specific region-of-interest (ROI)-based analysis to localize and compare altered WM integrity in all group contrasts. Results: Compared with HC, patients with HAND showed decreased FA in the right frontoparietal WM including the upper corticospinal tract (CST) and increased MD and RD in the bilateral frontoparietal WM, corpus callosum, bilateral CSTs and bilateral cerebellar peduncles. The DTI values did not significantly differ between HIV patients with and without HAND or between HIV patients without HAND and HC. In the ROI-based analysis, decreased FA was observed in the right superior longitudinal fasciculus and was significantly correlated with decreased information processing speed, memory, executive function, and fine motor function in HIV patients. Conclusion: These results suggest that altered integrity of the frontoparietal WM contributes to cognitive dysfunction in HIV patients.

憂徽病의 發病前 社會環境的 要因에 대한 考察

오세원,엄용섭 대한신경정신의학회 1980 신경정신의학 Vol.19 No.3

This clinical study was made to investigate the socio-environmental stressors occurring prior to the onset of severe depression in 85 patients who were hospitalized in the N euro-Psychiatric Department of Chosun University Hospital from September, 1976 until December, 1979. The result were as follows: 1. According to the diagnostic distribution, 54 were cases of “nonendogenous” depression and 31 were cases of “endogenous” depression. Among them , 71% of the endogenous depressives and 28% of the nonendogenous depressives had a past history of depression. 2. Frequency of the socio-environmental stressors prior to the onset of depressive illness were (1) financial problem s(55.3%) (2) conflict among family members(42.4%) (3) failure of patients children to meet parental expectations(27.1%) (4) failure in job perform ance or increased responsibities(27.1%) (5) made to face denied reality (25.9%) (6) threat to sexual identity (23.596) (7) physical illness(22.4% ) (8) change in marital relationship(22.4%) (9) damage to social status (12.9%) (10) death of important person(12. 9%). 3. Of the patient, 27 cases were male and 58 were fomale. Most of the cases were distributed in the late adulthood range. The more frequent stressors in male patients were financial problems aned failure in job performance or increased responsibilities. In female patients, jfinancial problems, conflict among family members and failure of patient’s children to meet parental expectations were the most frequent stressors. 4. The frequency and type of socio-environmental stressors were similar in both the endogenous and nonendogenous groups. Frequency of stressors in the endogenous group was in the order of financial problem s(58.0% ), failurein job perform ance or increased responsibilities (38.7%), made to face denied reality (35. 5% ), conflict among family members(25.896)t failure of patient s children to meet parental expectations(25.8% ), physical . illness(25.8%), threat to sexual identity (25.8%). The frequency of stressors in the nonendogenous group was in the order of finanrcial proplems(53.7% ), conflict among family members(51.8%), failure of patien t’s children to meet parental expectations(29.4%), threat to sexual identity (22. 2% )t change in marital relationship (22. 2% ). 5. Internal psychological reactions to socio-environmental exteranl events seemed to be determined by individual psychopathology and internally underlying psychological conflict.

군의관의 임상환자에 대한 태도

오세원 釜山醫師會 1985 釜山醫師會誌 Vol.21 No.4

IoT 기반 에스컬레이터 지능형 고장진단 서비스

오세원,이창호 한국컴퓨터통신연구회 2020 OSIA Standards & Technology Review Vol.33 No.1

RFID 미들웨어 플랫폼 표준화 동향

오세원,박주상,김말희,이용준 한국컴퓨터통신연구회 2005 OSIA Standards & Technology Review Vol.25 No.1

RFID 표준화 및 기술 동향

오세원,표철식,채종석,Oh, S.W.,Pyo, C.S.,Chae, J.S. 한국전자통신연구원 2005 전자통신동향분석 Vol.20 No.3

RFID 기술은 전파 신호, 즉 라디오 주파수를 이용한 무선 인터페이스를 통해 사물의 정보를 원격으로 주고 받을 수 있는 기술로서, 기존 바코드의 단점을 보완하여 사물의정보화를 촉진함으로써 향후 USN 환경의 핵심 기술로 활용될 것이다. 특히 RFID 기술은 기존의 자동식별 매체에 비해 인식거리 및 제작가격 등에서 서비스 창출과 시장 활성화에 유리한 특징을 갖고 있으므로 현재 물류 및 유통 업계를 중심으로 테스트베드구축과 실증실험이 진행되고 있다. 따라서, 본 고에서는 국제 표준화기구인 ISO/IEC및 RFID 기술 규격화 단체인 EPC global, 그리고 국내 표준화 그룹을 중심으로, RFID기술의 표준화 및 관련 기술 동향을 정리한다.

國內 微分炭 化力發電所에서 바닥재 再活用을 위한 乾式 바닥재 處理시스템 導入의 經濟性 分析 (Ⅱ) -旣存設備 改善事業에 대하여

오세원,Oh, Se-Won 한국자원리싸이클링학회 2005 資源 리싸이클링 Vol.14 No.2

국내 기존의 석탄화력발전기에서 운영 중인 충수중력식 바닥재 처리시스템을 바닥재의 재활용이 가능한 건식처리시스템으로 교체하는 개선사업에 대하여 500MW${\times}$2기 발전설비를 대상으로 경제성을 분석하였다. 건식처리시스템으로의 개선 시 초기투자비는 13,415,127천원이 소요되며, 시설운영비는 연간 935,345천원이 절감될 것으로 예측되었다. 이를 기초로 경제성 평가를 수행한 결과, 개선사업 시 소요되는 초기투자비는 자본 이익률 10%에서 시설사용연한 내에 회수가 불가능하였으며, 투자이익률은 5.6%로 산정되어, 현재 국내 조건에서 개선사업은 경제성을 확보하지 못하는 것으로 평가되었다. 이는 신규발전설비에 건식처리시스템의 도입이 경제성을 확보하는 것과 유럽에서 개선사업이 경제성을 확보하는 것과 다른 결과를 보이고 있는데, 이는 회매립비 차이에 기인하는 것으로 검토되었다. 향후 국내 시장 여건의 변화에 따라 회매립비와 회판매가가 변동할 경우의 경제성 분석결과, 개선사업은 회판매가가 17,000원/톤 이상으로 상승하거나 회매립비가 15,000원/톤 이상으로 상승할 경우, 경제성을 확보할 수 있는 것으로 평가되었다. Economic feasibility for retrofitting the wet bottom ash handling system to the dry system in a existing 500MW${\times}$2 units pulverized coal thermal power plant in Korea was studied. Replacing to the dry system requires the initial capital costs of 13,415,127,000\, and saves the operating costs of 935,345,000\ per year. Economic analyses based on these results showed that the initial capital cost would not be recovered within the service life of the facilities at the interest rate of 10%, and the internal rate of return of 5.6% were obtained. Thus, the retrofitting to the dry system was not economically favorable in the current condition. However, the retrofitting would be profitable when the ash disposal cost and ash selling price were increased over 15,000\/MT or 17,000\/MT, respectively.

미국 우편산업 동향 분석

오세원,이용준,김혜규,Oh, S.W.,Lee, Y.J.,Kim, H.K. 한국전자통신연구원 2002 전자통신동향분석 Vol.17 No.5

미국의 우편산업은 연 9천억 달러 규모의 시장을 형성하고 있으며, 보편적인 공공서비스 제공 및 상거래의 원동력 역할이라는 사회적인 책임을 충실히 수행해 오고 있다. 그러나 최근의 경제 하향세 및 인터넷, 이동통신을 비롯한 다른 통신 채널과의 경쟁 추세는, 우편산업도 수익성 및 고객 만족이라는 기업적인 목표를 추구해야 하며 산업의 경쟁력을 확보할 것을 요구하고 있다. 본 논문은 미국 우정공사(USPS)를 비롯한 우편산업계의 환경변화와 이에 대처하기 위한 구체적인 전략 및 활동 등의 최근 동향에 대해 정리한다.

Luminescent Polynorbornene/Quantum Dot Composite Nanorods and Nanotubes Prepared from AAO Membrane Templates

오세원,조영현,차국헌 한국고분자학회 2009 Macromolecular Research Vol.17 No.12

Luminescent polynorbornene (PNB)/quantum dot (CdSe@ZnS; QD) composite nanorods and nanotubes were successfully prepared using anodic aluminum oxide (AAO) membranes of various pore sizes as templates. To protect QDs with high quantum yield from quenching during the phosphoric acid treatment used to remove the AAO templates, chemically stable and optically clear norbornene-maleic anhydride copolymers (P(NB-r-MA)) were employed as a capping agent for QDs. The amine-terminated QDs reacted with maleic anhydride moieties in P(NBr- MA) to form PNB-grafted QDs. The chemical- and photo-stability of QDs encapsulated with PNB copolymers were investigated by photoluminescence (PL) spectroscopy. By varying the pore size of the AAO templates from 40 to 380 nm, PNB/QD composite nanorods or nanotubes were obtained with a good dispersion of QDs in the PNB matrix.