돈에 대한 태도가 명품과 SPA 상품 구매에 미치는 영향

전대근,박선미 한국의류학회 2011 한국의류학회 학술대회논문집 Vol.2011 No.1

항공관제용 다중 센서 자료 처리 소프트웨어 개발

전대근,은연주,김현경,염찬홍 한국항공우주학회 2012 한국항공우주학회 학술발표회 논문집 Vol.2012 No.11

항공관제용 감시자료처리시스템 (Surveillance Data Processing System: SDPS)을 구성하는 핵심 소프트웨어 중 하나인, 다중센서 다중 타겟 추적 소프트웨어 (Multi-Sensor Data Processing: MSDP)를 개발하였다. MSDP 는 기존 감시 센서인 레이더뿐만 아니라, ADS-B, Multilateration (MLAT) 등 차세대 감시센서 자료를 입력으로 하여 항공관제를 위한 시스템 항적을 생성하는 소프트웨어로서, 최신의 항적 추적기술인 Multiple Plot Variable Update, Interacting Multiple Model 등이 적용되었다. MSDP 에 의한 항적 추적의 정확도 분석을 위해, Eurocontrol 의 감시 표준의 요구사항을 기준으로 시험평가를 수행하였으며, 그 결과 요구사항을 만족함을 확인하였다. Multi-Sensor Data Processing (MSDP) Software as a core module of Surveillance Data Processing System (SDPS) is developed. MSDP processes not only radars but also ADS-B and Multilateration (MLAT) in order to produce system tracks for air traffic control. State-of-the-art tracking technologies such as Multiple Plot Variable Update (MPVU) and Interacting Multiple Model (IMM) are adopted for MSDP. Tracking performance test results based on the requirements in surveillance standards of Eurocontrol indicate that MSDP meets the requirements.

증착 온도에 따른 IZO 박막의 구조적 및 전기적 특성

전대근,이유림,이규만 한국반도체디스플레이기술학회 2011 반도체디스플레이기술학회지 Vol.10 No.3

In this study, we have investigated the effect of the substrate temperature on the structural and the electrical characteristics of IZO thin films for the OLED (organic light emitting diodes) devices. For this purpose, IZO thin films were deposited by RF magnetron sputtering under various substrate temperature. The substrate temperature has been changed from room temperature to 400℃. Samples which were deposited under 250 ℃ show amorphous structure. The electrical resistivity of crystalline-IZO (c-IZO) film was higher than that of amorphous-IZO (a-IZO) film. And the electrical resistivity showed minimum value near 150℃ of deposition temperature. The OLED device was fabricated with different IZO substrates made by configuration of IZO/α-NPD/DPVB/Alq3/LiF/Al to elucidate the performance of IZO substrate. OLED devices with the amorphous-IZO (a-IZO) anode film show better current density-voltage-luminance characteristics than that of OLED devices with the commercial crystalline-ITO (c-ITO) anode film. It can be explained that very flat surface roughness and high work function of a-IZO anode film lead to more efficient hole injection by reduction of interface barrier height between anode and organic layers. This suggests that a-IZO film is a promising anode materials substituting conventional c-ITO anode in OLED devices.

질점 비행동역학 모델 기반 비선형 항공기 추적 필터

전대근,은연주,염찬홍 한국항공우주학회 2011 한국항공우주학회 학술발표회 논문집 Vol.2011 No.11

3 차원 질점 비행동역학(PMFD) 모델을 이용한 비선형 항공기 추적 필터를 제안하였다. 항공기 자세의 병진 가속도에의 영향을 보다 실질적이면서도 정교하게 모델링 하기 위해 3 차원 병진 힘 방정식과 운동학 관계식 및 조종 변수로 모델을 구성하였으며, 조종변수인 항공기 받음각, 경사각, 추력 설정값은 랜덤 변수로 처리하였다. 시뮬레이션을 이용한 타겟 추적 결과, 기존 항공 관제용으로 사용되고 있는 CA 모델, IMM 모델 대비 높은 정확도를 보유하며, 기동 형태 및 설계 파라미터에도 강건함을 확인하였다. A nonlinear aircraft tracking filter using 3-D Point Mass Flight Dynamics(PMFD) model is presented. The model is developed with three dimensional aircraft translational force equations, kinematic relations, and control variables in order to implement the attitude effects on translational acceleration practically and sophisticatedly. The control variables which consist of angle of attack, bank angle, and thrust setting are treated as states with random processes. Tracking with simulation indicates that PMFD model is superior to Constant Acceleration(CA) model and Interacting Multiple Model(IMM) in terms of accuracy performance and robust to flight motion types and design parameters.

FAA AC120-63 Level C급 KA-32T 비행 시뮬레이션 모델 개발

전대근,최형식,전향식 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-

소비윤리가 과시소비성향과 복제품 구매행동에 미치는 영향

전대근,박선미 한국의류학회 2011 한국의류학회 학술대회논문집 Vol.2011 No.1

스마트무인기 18% 모델 파워 동안정 풍동시험

전대근,최성욱,김재무 한국항공우주학회 2006 한국항공우주학회 학술발표회 논문집 Vol.- No.-

BMI, 의복치수, 자아존중감과 우울이 신체관리에 미치는 영향

전대근,박성미,박순지 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.6

This research aimed to figure out the effects of physical features such as BMI, garment size and socio-psychological factors such as self-esteem and depression on the body management. A survey was conducted for women in their 40's and 50's. The participants in this study consisted of 197 women recruited in Daegu and the surrounding areas. Statistical analysis including factor analysis, ANOVA, cluster analysis and regression was done using SPSS 23.0 to analyze the results. Among 3 clusters divided by BMI, normal group showed higher body cathexis compared with overweight group and obesity group. S-size group showed higher body cathexis rather than M, L-size groups. L-size group showed higher scores in nonsurgical body management factor. Self-esteem(+)/depression(-) group showed highest body cathexis among 4 groups clustered by self-esteem and depression levels. On the other hand, self-esteem(-)/depression(+) group showed the lowest body cathexis and highest surgical body management and nonsurgical body management factors. This result meant that the lower in self-esteem and the higher in depression, body cathexis decreased and desire for body management increased. As the results of analysis of the effects of BMI, garment size, self-esteem, depression level on body management, depression was a significant factor on surgical body management; depression and garment size were critical factors on nonsurgical body management.

Role of Surgical Margin on Local Recurrence in High Risk Extremity Osteosarcoma: A Case-Controlled Study

전대근,송원석,공창배,조완형,조상현,이정동,이수용 대한정형외과학회 2013 Clinics in Orthopedic Surgery Vol.5 No.3

Background:The relationship between surgical margin and local recurrence (LR) in osteosarcoma patients with poor responses to chemotherapy is unclear. Moreover, the incidences of LR according to three different resection planes (bone, soft tissue, and perineurovascular) are not commonly known. Methods: We evaluated the incidence of LR in three areas. To assess whether there is a role of surgical margin on LR in patients resistant to preoperative chemotherapy, we designed a case (35 patients with LR) and control (70 patients without LR) study. Controls were matched for age, location, initial tumor volume, and tumor volume change during preoperative chemotherapy. Results: LR occurred at the soft tissues in 18 cases (51.4%), at the perineurovascular tissues in 11 cases (31.4%), and at the bones in six cases (17.2%). The proportion of inadequate perineurovascular margin was higher in the case group than in the control group (p = 0.01). Within case-control group (105 patients), a correlation between each margin status and LR at corresponding area was found in the bone (p < 0.001) and perineurovascular area (p = 0.001). Conclusions: LR is most common in soft tissues. In patients showing similar unfavorable responses to chemotherapy, the losses of perineurovascular fat plane on preoperative magnetic resonance imaging may be a valuable finding in predicting LR.

4D 궤적 기반 항공교통흐름관리 기술 연구

전대근 대한교통학회 2021 대한교통학회 학술대회지 Vol.85 No.-

항공교통 흐름관리(ATFM, Air Traffic Flow Management)는 안전하고 질서정연하고 신속한 항공교통의 흐름을 위한 서비스로서, 항공교통량이 항공교통관제 당국이 수용 가능한 범위 내에서 유지될 수 있도록, 교통흐름을 예측하여 사전에 조절하는 것을 목적으로 한다. 본 연구에서는 ATFM에 요구되는 핵심 기술을 4차원 정밀 궤적 예측 기술, 교통수요량/수용량 예측 및 감시 기술, 수용량 대비 수요량 불균형 발생 시 요구되는 항공교통 흐름관리 조치(TMI, Traffic Management Initiative) 생성 기술, 시뮬레이션 및 분석 기술로 구분하고, 이와 관련한 최신 기술/연구동향을 분석하였다. 또한, 분석 결과를 바탕으로, 우리나라 항공교통환경의 특수성, 주변국으로부터의 흐름관리 요구사항, 향후 확장성 등을 종합적으로 고려하여, 우리나라의 효율적 ATFM을 위해 필요한 연구주제를 식별하였다.