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여행상품 선택속성이 여행객의 충성도 및 전환의도에 미치는 영향
신상준 ( Sangjune Shin ) 관광경영학회 2018 관광경영연구 Vol.82 No.-
The ultimate goal of this study is to set the target market depending on the tourist product with consumer attribute group, to suggest the travel agency the beneficial implications which factors have meaningful relationship with loyalty and conversion intention among many selection factors of tour product. The questionnaires were collected through the persons involved in the tourism business in Seoul and metropolitan areas, and the survey through e-mail from 5th June to 31th June, 2017. Total 500 questionnaires were distributed and total 388 questionnaires were collected, 350 questionnaires were used except for 38 cases in which the double response was not completed or a non-sample error occurred due to an unfaithful response. Factor analysis and reliability verification were carried out by using SPSS 22.0 and AMOS 22.0, Covariance structure analysis was carried out to verify the proposed research hypothesis. The analysis result showed, first, the business characteristics, online information have a significant positive effect(+) to the loyalty of travel agencies. But human services, suitability of travel products, and reputation of travel agencies did not significantly affect the loyalty of travel agencies. Second, the business characteristics, suitability of travel products, and online information have a significant effect on the conversion intention of travel agency. On the other hand, human services and travel agency reputation did not have significant effect. Third, the loyalty of the travel agent showed a positive (+) influence on the intention to switch to the travel agency. Therefore, based on the results of this analysis, this study suggested some useful implications for the operation of the travel agency.
신상준(Sangjun Shin),송영상(Youngsang Song),신인철(Inchul Shin) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.2
정보 통신의 발달로 인한 개인정보의 도용과 유출 및 불법적인 데이터의 사용을 차단하기 위한 많은 연구가 진행되고 있다. 개인정보의 불법적인 유출을 막기 위해 스마트카드의 사용이 급증하고 있으며 현재 스마트카드보다 확장성 및 시스템 설계가 용이한 자바카드가 빠르게 보급되고 있는 추세이다. 본 논문에서는 정보호호 및 다양한 응용분야에 이용되는 자바카드의 기술규격(APDU)을 사용하여 다중사용자 인증과 사용자별 파일접근권한 시스템을 설계 및 구현하였다. 설계 구현한 시스템의 목적은 다수의 사용자 인증이 필요한 시스템에서 불법적인 정보의 유출을 방지하는 것이며 의료 분야 등 다양한 응용 프로그램에 적용이 가능하다.
신상준(Sangjune Shin),신동균(Dongkun Shin) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
This paper addresses the limitations of realtime application of object detection techniques in embedded computing environments. To overcome these limitations, compression methods such as pruning and quantization are being investigated. In this study, various quantization techniques, including post-training quantization, partial quantization, and quantization-aware training, are applied to the YOLO v3 model to evaluate and analyze their effects in embedded system environments. Experiments were conducted using the YOLO v3 model and the PASCAL VOC dataset. The experimental results show that the quantized models can reduce model size and inference time but result in accuracy loss. Therefore, this research contributes to improving object detection performance in embedded systems by proposing and analyzing various quantization techniques for lightweighting object detection technology in embedded environments.
항공기 복합재 라미네이트의 충격 손상 부위 유지 보수 후 강도 복원 평가
공창덕(Changduk Kong),박현범(Hyunbum Park),이경선(Kyungsun Lee),신상준(Sangjun Shin) 한국항공우주학회 2010 韓國航空宇宙學會誌 Vol.38 No.9
국내에서 미국과 상호항공안전협정 체결을 위해 소형 항공기를 개발 중이다. 연구 대상 항공기는 경량화를 위하여 전기체 복합재료가 적용되었다. 그러나 복합재 구조는 충격 손상에 취약하다. 따라서 본 연구에서는 항공기 복합재 구조의 손상 평가 및 유지 보수 기법 연구를 수행하였다. 탄소/에폭시 UD 라미네이트와 탄소/에폭시 패브릭 스킨-허니컴코어 샌드위치 복합재 라미네이트의 손상은 중량 낙하식 충격 시험기를 활용하여 모사되었으며 손상된 시편은 손상 부위 제거 후 외부 패치 적용 방안을 적용하여 수리하였다. 손상 전 시편, 손상 후 시편, 유지 보수된 시편의 압축 강도 시험 및 해석 결과를 비교하였다. 그리고 마지막으로 유지 보수 후 강도 복원 능력이 평가되었다. Development of a small scale aircraft has been carried out for the BASA(Bilateral Aviation Safety Agreement) program in Korea. This aircraft adopted all the composite structures for environmental friendly by low fuel consumption due to its lightness behavior. However the composite structure has s disadvantage which is very weak against impact due to foreign object damages. Therefore the aim of this study is focusing on the damage evaluation and repair techniques of the aircraft composite structure. The damages of composite laminates including the carbon/epoxy UD laminate and the carbon/epoxy fabric face sheets-honeycomb core sandwich laminate were simulated by a drop weight type impact test equipment and the damaged specimen were repaired using the external patch repair method after removing damaged area. The compressive strength test and analysis results after repairing the impact damaged specimens were compared with the compressive strength test and analysis results of undamaged specimens and impact damaged specimens. Finally, the strength recovery capability by repairing were investigated.