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      • KCI등재

        국내 주요 항공노선별 여객수송량 변화추이와 결정요인에 관한 연구

        유혜미,윤대식 국토연구원 2013 국토연구 Vol.78 No.-

        This paper analyzes yearly variation of the air passenger travel volume for domestic routes connecting major airports in Korea. Using aggregated statistical data, yearly variation of the air passenger travel volume is analyzed. The paper includes some descriptive statistical analyses on time-series data for domestic routes connecting major airports. The analysis is conducted on the period between the year 2002 and 2011. Furthermore, some direct air travel demand models are developed by panel regression analysis for finding factors affecting air passenger travel volume of each domestic route connecting major airports. Finally, some analytical results are summarized, and policy implications are discussed. The analytical results are summarized as follows. First, it is found that the air passenger travel volume for domestic routes connecting major airports, excluding Jeju and Incheon International Airport, is decreased between the year 2002 and 2011. Secondly, it is found that populations of origin and destination are the most important factors affecting air passenger travel volume. 본 논문에서는 2002년에서 2011년 사이(10년간) 국내 주요 대도시권의 공항과 제주국제공항의 출발 여객수송량의 변화추이와 결정요인 분석을 실시하였다. 주요 공항의 항공노선별 여객수송량의 결정요인 분석은 선행연구를 검토하여 설명변수를 선정하였으며, 다양한 설명변수를 포함하여 패널회귀분석을 실시하였다. 패널회귀분석을 위해 주요 공항의 연도별˙노선별 항공여객수송량 자료(패널자료)를 종속변수로 사용하였다. 마지막으로 분석 결과를 요약한 후 정책적 시사점 및 한계를 제시하였다. 본 연구의 분석 결과를 요약하면 다음과 같다. 첫째, 국내 주요 항공노선별 여객수송량의 변화는 분석기간 동안 제주와 인천국제공항을 출발지와 목적지로 하는 노선을 제외하고 대부분의 도시 간 여객수송량이 감소하는 것으로 나타났다. 둘째, 국내 주요 내륙공항의 출발 여객수송량의 결정요인을 분석한 결과 출발지(도시)와 목적지(도시) 인구의 합이 큰 영향을 미치는 것으로 나타났고, 다음으로 출발지와 목적지 간의 항공통행시간에 대한 철도통행시간의 비율이 영향을 미치는 것으로 나타났다. 셋째, 제주국제공항의 출발 여객수송량 결정요인 분석을 위한 패널회귀모형 추정결과 출발지와 목적지의 인구가 큰 영향을 미치는 변수임을 확인할 수 있었다.

      • KCI등재후보

        Reconstruction of Full Thickness Ala Defect with Nasolabial Fold and Septal Mucosal Hinge Flap

        유혜미,김남균,김준식,이경석 대한두개안면성형외과학회 2014 Archives of Craniofacial Surgery Vol.15 No.3

        Reconstruction of a full-thickness alar defect requires independent blood supplies tothe inner and outer surfaces. Because of this, secondary operations are commonlyneeded for the division of skin flap from its origin. Here, we report a single-stage reconstructionof full-thickness alar defect, which was made possible by the use of a nasolabialisland flap and septal mucosal hinge flap. A 49-year-old female had presented witha squamous cell carcinoma of the right ala which was invading through the mucosa. The lesion was excised with a 5-mm free margin through the full-thickness of ala. Thelining and cartilage was restored using a septal mucosa hinge flap and a conchal cartilagefrom the ipsilateral ear. The superficial surface was covered with a nasolabialisland flap based on a perforator from the angular artery. The three separate tissuelayers were reconstructed as a single subunit, and no secondary operations were necessary. Single-stage reconstruction of the alar subunit was made possible by the useof a nasolabial island flap and septal mucosal hinge flap. Further studies are needed tocompare long-term outcomes following single-stage and multi-stage reconstructions

      • KCI등재

        Surgical Treatment of Carpal Tunnel Syndrome through a Minimal Incision on the Distal Wrist Crease: An Anatomical and Clinical Study

        유혜미,이경석,김준식,김남균 대한성형외과학회 2015 Archives of Plastic Surgery Vol.42 No.3

        Background An anatomical analysis of the transverse carpal ligament (TCL) and the surrounding structures might help in identifying effective measures to minimize complications. Here, we present a surgical technique based on an anatomical study that was successfully applied in clinical settings. Methods Using 13 hands from 8 formalin-fixed cadavers, we measured the TCL length and thickness, correlation between the distal wrist crease and the proximal end of the TCL, and distance between the distal end of the TCL and the palmar arch; the TCL cross sections and the thickest parts were also examined. Clinically, fasciotomy was performed on the relevant parts of 15 hands from 13 patients by making a minimally invasive incision on the distal wrist crease. Postoperatively, a two-point discrimination check was conducted in which the sensations of the first, second, and third fingertips and the palmar cutaneous branch injuries were monitored (average duration, 7 months). Results In the 13 cadaveric hands, the distal wrist crease and the proximal end of the TCL were placed in the same location. The average length of the TCL and the distance from the distal TCL to the superficial palmar arch were 35.30±2.59 mm and 9.50±2.13 mm, respectively. The thickest part of the TCL was a region 25 mm distal to the distal wrist crease (average thickness, 4.00±0.57 mm). The 13 surgeries performed in the clinical settings yielded satisfactory results. Conclusions This peri-TCL anatomical study confirmed the safety of fasciotomy with a minimally invasive incision of the distal wrist crease. The clinical application of the technique indicated that the minimally invasive incision of the distal wrist crease was efficacious in the treatment of the carpal tunnel syndrome.

      • KCI등재

        공항 면세점의 서비스 품질이 재방문의도에 미치는 영향: 한국과 중국 면세점의 실증 비교

        유혜미,유혜방,정진섭 한국경영컨설팅학회 2020 경영컨설팅연구 Vol.20 No.4

        Entering the 21st century, people's income and living standards continued to improve, and the rapid increase in overseas tourism brought new opportunities to the duty-free industry. The duty-free industry eventually contributes to the development of the tourism industry and the enhancement of international competitiveness by increasing sales and creating jobs in the sector concerned. South Korea's duty-free industry market is sophisticated and currently has a leadership position worldwide. On the other hand, China's duty-free industry started relatively late, had a weak foundation and had long been under government control. Thus there is a wide gap between Korea and China in the development of the duty-free industry. This study also seeks to explore strategic implications for the duty-free industry by comparing duty-free shops at airports in Korea and China. First, hypotheses and models were established based on existing studies relating to the quality of service and intention to revisit airport duty-free shops. The purpose of the study was to investigate the effect of 'service quality' at airport duty-free shops on 'revisit intention' of customers, and also to examine the mediating effects of 'trust' and 'perceived value'. To that end, a survey was conducted on those who had visited airport duty-free shops in Incheon, Korea, and airport duty-free shops in Qingdao, China. 178 questionnaires were used for analysis in Korea and 204 questionnaires in China. The results of the empirical analysis are as follows. First, the various quality of service at airport duty-free shops has a positive effect on the intention of revisiting airport duty-free shops. Second, perceived values show mediating effects between the service quality of airport duty-free shops and the customer's revisit intention. Third, trust has a positive mediating effect between service quality and customer's revisit intention at airport duty-free shops. Fourth, it turned out that the 'perceived value' of airport duty-free shops had a positive effect on 'trust'. Based on these results, the following related implications were also presented: Korea's duty-free industry started earlier than China and now has an international competitive edge. Nevertheless, the business model should continue to be complemented. The supplementation of additional facilities through new technologies and the improvement of airport duty-free shops' infrastructure will require continuous improvement of airport duty-free service quality, as well as the establishment of infrastructure for emergency situations such as the COVID-19 pandemic. China's airport duty-free shops need to quickly improve manpower service levels and management levels. In terms of products, various sectors such as diversity and product placement should be learned through benchmarking of duty-free shops with a lot of international experience, such as Korea, and various service levels should be upgraded to the international level. In addition, both countries need to make proper use of their latest digital transformation and convergence strategies, and continue to improve and innovate based on global SDGs. 21 세기에 들어서면서 사람들의 소득과 생활수준이 지속적으로 향상되었고, 해외 관광이 급격하게 증가되면서 면세 산업에 새로운 기회를 가져 왔다. 면세 산업은 해당부문의 매출을 증가시키고 일자리를 창출하여 결국 관광 산업의 발전과 국제 경쟁력 향상에 기여한다. 한국의 면세 산업 시장은 세련되어 있으며 현재 세계적으로 리더의 위치에 있다. 반면, 중국의 면세 산업은 비교적 늦게 시작하였고, 기초가 약하며, 오랜 기간 정부의 통제하에 있었다. 따라서 면세 산업 발전에서 한국과 중국 사이에는 큰 격차가 있다. 본 연구에서는 한국과 중국의 공항 면세점 비교를 통해 면세 산업에 대한 전략적 시사점도 탐색하고자 한다. 먼저, 공항 면세점의 서비스 품질과 재방문 의도와 관련된 기존 연구를 토대로 가설 및 모델을 구축하였다. 이 연구의 목적은 공항 면세점의 ‘서비스 품질’이 고객의 ‘재방문의도’에 미치는 영향을 조사하는 것이며, ‘신뢰’와 ‘지각된 가치’의 매개효과도 살펴보고자 했다. 이를 위해 한국 인천의 공항 면세점과 중국 칭다오의 공항 면세점을 방문한 경험이 있는 사람을 대상으로 설문조사를 수행하였다. 한국의 경우에는 178개의 설문지를, 중국의 경우에는 204개의 설문지를 분석에 활용하였다. 실증분석의 결과는 다음과 같다. 첫째, 공항 면세점의 다양한 서비스 품질은 공항 면세점의 재방문 의도에 긍정적 영향을 미친다. 둘째, 지각된 가치는 공항 면세점의 서비스 품질과 고객의 재방문 의도 사이의 관계에서 중개자 역할을 한다. 셋째, 신뢰는 서비스 품질과 공항 면세점을 다시 방문하려는 고객 의도 사이에서 긍정적 매개효과를 보인다. 넷째, 공항 면세점의 ‘지각된 가치’가 ‘신뢰’에 긍정적인 영향을 미치는 것으로 나타났다. 이러한 결과를 기반으로 다음과 같은 관련 시사점도 제시하였다. 한국의 면세 산업은 중국대비 일찍 시작하였으며, 현재 국제적인 경쟁력을 보유하고 있다. 그럼에도 불구하고 비즈니스 모델을 지속적으로 보완해야 한다. 새로운 기술을 통한 부가시설의 보완성, 공항 면세점의 인프라 향상 등을 통해 공항 면세점의 서비스 품질을 지속적으로 개선함은 물론, COVID-19 팬데믹과 같은 비상 상황에 대한 인프라도 구축해야 할 것이다. 중국의 공항 면세점은 인력 서비스 수준과 관리 수준을 신속하게 향상시킬 필요가 있다. 상품 측면에서는 한국과 같이 국제적 경험이 많은 면세점의 벤치마킹을 통해 다양성, 상품배치 등 여러 부문을 학습하고, 다양한 서비스 수준도 업그레이드하여 국제적 수준까지 올려야 한다. 또한 양국 모두 최근 디지털 전환과 융합 전략을 적절히 활용하고, 전세계적인 지속개발목표( SDGs)를 기반으로 지속적인 개선과 혁신이 필요하다.

      • KCI등재

        A New Record for the Genus Duplachionaspis Armored Scale (Hemiptera: Diaspididae) from Korea

        유혜미,서수정,Yu, Hye Mi,Suh, Soo-Jung Korean Society of Applied Entomology 2013 한국응용곤충학회지 Vol.52 No.1

        Duplachionaspis속(屬)의 D. divergens (Green, 1899) 1종을 국내분포로 처음 보고하고, 동 속과 종의 특징, 동아시아산 Duplachionaspis속(屬)의 종 동정에 필요한 검색표, 사진자료, 분포 및 기주 정보를 함께 기재하였다. One species of the Duplachionaspis, D. divergens (Green, 1899) is newly recorded in the Korean fauna of armored scales (Diaspididae). The characters of this genus and species are here redescribed from Korean specimens. A key to species of Duplachionaspis from the East Palaearctic Region, photographs and information on the distribution and hosts of this species, are also provided.

      • KCI등재

        The Effects of Labor Composition on Hours Volatility: Evidence from the U.S.

        유혜미 한국계량경제학회 2014 계량경제학보 Vol.25 No.2

        For the past few decades, labor composition has changed drastically in the U.S. This paper examines how these changes help to explain the recent decline in aggregate hours fluctuations. I disaggregate workers by gender, education, marital status, and spousal characteristics among marriedworkers, and quantify the impact of their changing shares on cyclical volatility of hours at both the extensive and intensive margins. The main result is that these labor composition changes explain little of the reduction in hours volatility along the extensive margin, yet they explain a significant fraction of the fluctuations at the intensive margin. Educational attainment is the single most important factor in aggregate hours fluctuations: it accounts for 1% and 14% of cyclical volatility of employment rate and average weekly hours, respectively. I also find that spousal education among married workers with a working spouse played an important role in the phenomenon.

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