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전상민 한국보건사회연구원 2012 한국복지패널 학술대회 논문집 Vol.5 No.-
본 연구는 7차년도 한국복지패널 자료의 총 1,164 단독가구를 대상으로 단독가구의 소비지출패턴의 유형을 파악하고, 그 결정요인을 분석하였다. 분석결과, 칩거생활 지출형, 사교적 가정생활 지출형, 의료비 지출형(이상 노년층 단독가구 유형), 월세·교통비 지출형, 치장·외식·오락비 지출형(이상 청장년층 단독가구 유형)의 다섯 가지 유형이 파악되었다. 칩거생활 지출형과 의료비 지출형은 경제적·심리적 차원에서 사회적 취약계층으로 파악되었고, 이에 비해 사교적 가정생활 지출형은 비교적 여유롭고 즐거운 노년생활을 보내고 있었다. 치장·외식·오락비 지출형은 30대와 60대가 공존하는 골드미스터의 양상을 보였고, 월세·교통비 지출형은 고학력이나, 자산규모가 적고 고용·주거 측면에서 불안정한 모습을 보였다. 본 연구는 단독가구를 타깃으로 하는 기업과 이들을 지원하고자 하는 복지기관, 가구유형을 분석하는 연구자에게 유용한 연구결과와 제언을 제시하였다.
Kerr-Lens Mode-Locked 펄스 레이저 이론 연구
전상민,김용평 경희대학교 산학협력기술연구원 2003 산학협력기술연구논문집 Vol.9 No.-
The Kerr-lens mode locking ability and the ultrashort pulse characteristics are analyzed numerically for the Cr-doped ZnSe active media. Propagation of the Gaussian ultrashort pulse in a nonlinear medium is considered on the basis of momentum methods. the output pulse characteristics to the pumping source change is observed with numerically simulation. This study can be usable for the numerical optimization of the KLM lasers.
An esthetic appliance for the management of crown-root fracture: a case report
전상민,이강희,정복영 대한치과보존학회 2014 Restorative Dentistry & Endodontics Vol.39 No.3
Orthodontic extrusion is usually performed by means of a fixed orthodontic appliance that utilizes arch wire attached to adjacent teeth and transfers the desired force by elastic from the wire to the root. However, clinicians often encounter cases where the bonding required for tooth traction is not possible because the adjacent teeth have been restored with ceramic or veneer. The purpose of this case report is to describe a modified orthodontic extrusion appliance that is useful when conventional orthodontic treatment is not possible. The modified appliance was fabricated using an artificial tooth, clear plastic sheeting, and a braided fiber-reinforced composite strip that covered adjacent teeth without bonding. It satisfied the esthetic and functional needs of the patient and established the optimal biologic width.
전상민,김용평 경희대학교 산학협력기술연구원 2004 산학협력기술연구논문집 Vol.10 No.1
The polarization interferometer is used at optical wavemeter to realize low cost and portable. The existing setup is consisted with linear polarizer. If the polarization station of input beam was orthogonal to the optical axis of the linear polarizer, the input beam can’t pass through the linear polarizer. So the optical wavelength can’t be measured. In this paper, the polarizing beamsplitter is exchanged with linear polarizer to use both two orthogonal linear polarized beams. In this case, even if the polarization station of input beam changed randomly, the input beams to photodiodes is constant. The wavemeter with polarizing beamsplitter can be independent to the polarization state of input beam.
편광간섭계 광파장 측정방법에서 입사광의 세기 변화에 의한 출력오차 보상
전상민,김용평 慶熙大學校 레이저 工學硏究所 2007 레이저공학 Vol.18 No.-
The optical wavemeter implemented with a polarization interferometer is simple and accurate. However, the wavemeter is very sensitive to the intensity of the input light. If the light is modulated or its intensity through the polarizer is varied due to a change of polarization state, the measurement error is increased and, in tum, the resolution and bandwidth are limited. In this study, the source of error, which is generated by a change of light intensity, is analyzed, compensated, and experimentally dermonstrated. The measurement error due to fluctuated intensity can be reduced by compensating the output offset values of photo detectors. After compensation, the output errors are reduced to ± 0.1 nm from ± 1.85 nm at 1540 nm, ±: 0.12 nm from ± 1.6 nm at 1550 nm and ± 0.31 nm from ± 0.66 nm at 1570 nm.
전상민,김민선,이강희,박원서,정복영,김기덕,방난심 대한통합치과학회 2015 대한통합치과학회지 Vol.4 No.1
In general, most cases for interdisciplinary treatment often demonstrate a poor periodontal health, moderate dental caries requiring multiple extractions, or a missing tooth status. Missing teeth or a poor periodontal heath can cause tooth movement over time, which leads to the collapse of teeth alignment and therefore requires a space redistribution when establishing a treatment plan. In case when the existing periodontal health is poor, however, one should be careful for initiating orthodontic treatment, which should be applied to a proper case only. Once a treatment initiation is decided, the periodontal inflammation control - the most crucial factor - should be considered with caution over three stages: pre-treatment, mid-treatment, and post-treatment stage.