인터넷쇼핑몰을 이용하는 소비자들의 기능성화장품에 대한 인식 실태 분석

유은경,권혜진,You, Eun-Kyung,Kwon, Hye-Jin 한국디지털정책학회 2016 디지털융복합연구 Vol.14 No.12

This study attempted to secure competitiveness in the cosmetics market and provide basic data needed to promote sales and PR after reflecting consumer demands and needs in the development of cosmeceuticals. For this, it investigated their perception regarding the ingredients and efficacies of cosmeceuticals and repurchase intention among a total of 193 adults in their 20-50s who have had prior experience of buying these types of products from an online shopping mall as the importance of cosmeceuticals is emerging. According to a survey on consumer perceptions regarding the ingredients of cosmeceuticals by gender, there was a clear difference between men and women. In particular, when asked about the ingredients of whitening cosmetics, the percentage of male respondents was as low as 30.8% with a significant difference between men and women (t=31.688,p<0.001). In addition, most consumers were very aware of the efficacies of the ingredients of cosmeceuticals on the skin. In terms of actual repurchase intention, however, a significant difference was found by gender and product type in 3 different cosmeceuticals. In other words, men were lower than women in terms of awareness of cosmeceuticals and repurchase intention. Therefore, the development of a plan which satisfies both men and women, easily labels ingredients and meets consumer needs and demands through proper pricing policy are needed during the development of cosmeceuticals. 본 연구는 기능성화장품의 중요성이 부각되고 있는 현 시점에서 인터넷 쇼핑몰을 통해 기능성화장품을 구매한 경험이 있는 20~50대 남녀 소비자 193명을 대상으로 기능성화장품 성분에 대한 인식, 효능에 대한 인식, 재 구매의도에 대하여 조사하여 남녀 소비자들의 기능성화장품에 대한 인식과 요구를 반영함으로써 뷰티시장에서의 마케팅 전략을 확보하고 판매 활성화를 위한 기초자료를 제공하고자 하였다. 성별에 따른 기능성화장품 성분에 대한 인식 조사 결과, 남녀가 확연한 인식 차이를 보였는데, 특히 미백화장품의 성분을 묻는 질문에 남성 정답자는 30.8%에 불과하여 남녀가 유의한 차이를 보였다(t=31.688, p<0.001). 또 대부분의 소비자들은 기능성화장품의 성분이 피부에 미치는 효능을 잘 인식하고 있었으나 실제 재 구매 의도에서는 3종류 기능성화장품에 대하여 성별, 제품의 종류별 모두 유의한 차이를 나타내 남성소비자들은 여성에 비해 기능성화장품에 대한 정확한 인지가 부족할 뿐 아니리 구매의도도 낮음을 알 수 있었다. 따라서 기능성화장품 개발 시 남 여 소비자 모두가 만족하며 성분인지가 용이한 표기와 적합한 가격정책을 통해 소비자들의 필요와 관심에 맞는 방안이 마련되어져야 할 것이라 사료된다.

머신러닝을 활용한 동적발사영역 산출 알고리즘

유은경(Eun-Kyung You),배찬규(Chan-Gyu Bae),김혁진(Hyeock-Jin Kim) 한국컴퓨터정보학회 2020 한국컴퓨터정보학회 학술발표논문집 Vol.28 No.1

호텔 임금 피크제 도입에 관한 연구

유은경(You Eun Kyung) 한국콘텐츠학회 2013 한국콘텐츠학회지 Vol.11 No.3

Implementation of Vertigo Warning function for FA-50 aircraft

Eun-Kyung You(유은경),Hyeock-Jin Kim(김혁진) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.10

전투기 조종사는 ‘비행환경 적응 교육 훈련(APT)’을 이수함으로써 악조건 속에서도 완벽하게 임무를 수행할 수 있도록 능력을 향상시키고 있다. 그러나 비행 시 가속도로 인해 인체 평형기관의 이상으로 ‘Vertigo(Spatial disorientation)’ 현상에 빠지게 되어 추락하는 사고 사례가 발생하고 있다. 이러한 비행착각에 빠지는 전투기 추락 사고는 국내 · 외를 불문하고 빈번하게 발생하고 있다. 이에 본 연구에서는 전투기에 ‘Vertigo’ 경고 기능을 구현하고자 하였다. 먼저, 항공기 주임무 컴퓨터와 현재 구현되어 있는 경고 기능을 분석하였다. 그리고 항공기 자세 정보를 이용하기 위해 좌표계 시스템을 연구하였다. 이를 바탕으로 전투기가 배면 비행 자세로 일정 시간 이상 하강 시 전방시현장비에 시각적인 경고 기능을 제공하고자 하였다. 본 기능을 구현함으로써 조종사의 비행 안전을 향상시킬 수 있을 것이라고 기대한다. 또한 본 연구 결과를 바탕으로 다른 서브시스템과의 연계를 통한 경고 기능 구현 방안을 제안하고자 한다. Fighter pilots are taking ‘Advanced Pilot Training’ courses to perform their missions perfectly even under adverse conditions. However, there are accidents that fall due to problems with the human body’s equilibrium in the acceleration of flight, falling into the ‘Vertigo, Spatial disorientation’ phenomenon. As such, accidents that fighters fall due to spatial disorientation frequently occur not only in Korea but also abroad. In this study, we implemented the ‘Vertigo’ warning function in the fighter. First, we analyzed the aircraft’s mission computer and the currently implemented warning functions. And we studied the coordinate system to utilize the aircraft attitude information. Based on this, we wanted to provide a visual warning to the HUD when the fighter flies over a certain time in the inverted flight position. Implementing this feature is expected to improve pilot flight safety. In addition, based on the results of this study, we propose a method to implement warning functions through linkage with other subsystems.

FA-50 항공기 IMDC의 OFP 초기화 기능 구현

유은경(Eun-Kyung You),배찬규(Chan-Gyu Bae),김혁진(Hyeock-Jin Kim) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.2

Recent trends in modern warfare are increasing in importance for air warfare, information warfare, and warfare. The technology of the weapon system software is rapidly developing, and the silent information war to hack it is still going on. Currently, the FA-50 aircraft has a function that can be initialized by a simple switch operation to protect the main military information in the event of an emergency. However, there are limitations in the existing Zeroize function, and this study was carried out to supplement this. First, we compare and analyze the memory structure of aircraft operating in our military, and examined the currently implemented Zeroize function. Second, we reviewed various methods to overcome the limitation of existing Zeroize function. Third, we implement the existing Zeroize function without additional manipulation. In this paper, we propose that the implementation of this feature will enable us to protect our military data more securely and suggest that we should continue to look for ways to enhance security for our technology in the future.

Implementation of CEI frequency operation function in IMDC for FA-50 aircraft

Eun-Kyung You(유은경),Hyeock-Jin Kim(김혁진) 한국컴퓨터정보학회 2018 韓國컴퓨터情報學會論文誌 Vol.23 No.1

The Korean Air Force FA-50 aircraft currently operating in the Air Force is using Ultra High Frequency (UHF) frequency communications for navigation communications with ground control stations or other aircraft. The pilot communicates by changing frequency at any time during flight, and performs communication by directly inputting from the Integrated Up-Front Controller installed in the cockpit. The frequency is designated as secret, and the pilot receives the task with the frequency channel number (001 ~ xxx) and finds the frequency of the channel in the list of 4,000 frequency channels and inputs it manually. This reduces the safety and convenience of pilots` operations and exposes them to hazards that may occur especially during night flight missions. In this paper, we propose a function to embed the frequency corresponding to the frequency channel list in IMDC, the aircraft mission computer, and to automatically change the frequency when the pilot only inputs the channel number.

서비스 회복노력 유형에 근거한 여행업 종사자 특성 분석

유은경(Eun-Kyung You) 한국관광연구학회 2020 관광연구저널 Vol.34 No.11

딥러닝 학습에서 최적의 알고리즘과 뉴론수 탐색

장하영,유은경,김혁진,Jang, Ha-Young,You, Eun-Kyung,Kim, Hyeock-Jin 한국디지털정책학회 2022 디지털융복합연구 Vol.20 No.4

딥러닝(Deep Learning)은 퍼셉트론을 기반으로 하고 있으며 현재에는 이미지 인식, 음성 인식, 객체 검출 및 약물 개발 등과 같은 다양한 영역에서 사용되고 있다. 이에 따라 학습 알고리즘이 다양하게 제안되었고 신경망을 구성하는 뉴런수도 연구자마다 많은 차이를 보이고 있다. 본 연구는 현재 대표적으로 사용되고 있는 확률적 경사하강법(SGD), 모멘텀법(Momentum), AdaGrad, RMSProp 및 Adam법의 뉴런수에 따른 학습 특성을 분석하였다. 이를 위하여 1개의 입력층, 3개의 은닉층, 1개의 출력층으로 신경망을 구성하였고 활성화함수는 ReLU, 손실 함수는 교차 엔트로피 오차(CEE)를 적용하였고 실험 데이터셋은 MNIST를 사용하였다. 그 결과 뉴런수는 100~300개, 알고리즘은 Adam, 학습횟수(iteraction)는 200회가 딥러닝 학습에서 가장 효율적일 것으로 결론을 내렸다. 이러한 연구는 향후 새로운 학습 데이터가 주어졌을 경우 개발될 알고리즘과 뉴런수의 기준치에 함의를 제공할 것이다. Deep Learning is based on a perceptron, and is currently being used in various fields such as image recognition, voice recognition, object detection, and drug development. Accordingly, a variety of learning algorithms have been proposed, and the number of neurons constituting a neural network varies greatly among researchers. This study analyzed the learning characteristics according to the number of neurons of the currently used SGD, momentum methods, AdaGrad, RMSProp, and Adam methods. To this end, a neural network was constructed with one input layer, three hidden layers, and one output layer. ReLU was applied to the activation function, cross entropy error (CEE) was applied to the loss function, and MNIST was used for the experimental dataset. As a result, it was concluded that the number of neurons 100-300, the algorithm Adam, and the number of learning (iteraction) 200 would be the most efficient in deep learning learning. This study will provide implications for the algorithm to be developed and the reference value of the number of neurons given new learning data in the future.

관광계열 전공 대학생의 전공만족, 자기효능감 및 진로준비행동 간의 영향관계 연구

신영미(Shin, Young-Mi),유은경(You, Eun-Kyung) 한국관광레저학회 2021 관광레저연구 Vol.33 No.1

외래예약 스케쥴링 중재가 대기시간에 미치는 영향

우혜종,이계정,유은경,박소현,김영란,이부섭,이필호,황인경,류우미,오정미 중앙대학교 의과대학 간호학과 간호과학연구소 2011 중앙간호논문집 Vol.15 No.-

Background: It is important to develop innovative clinical scheduling systems to minimize patients' waiting time and maximize the patients' satisfaction with the services provided. Purpose: The purpose of this study was a) to evaluate the effectiveness of a clinic scheduling intervention in an outpatient clinic on waiting time and perceived waiting time and b) to explore perceived waiting time and its correlates. Methods: A total of 1718 outpatients who visited an orthopedic clinic at a University hospital from July 2010 to December 2010 were enrolled and randomly assigned to either the control group or one of 4 clinic scheduling model which were designed based on time and case. Data including waiting time, demographic data, and evaluation of clinical services were collected after patients' clinic visits. Data were analyzed using SPSS for Windows (ver. 20) and SAS 9.0. Descriptive statistics, Pearson correlation, ANOVA, and linear regression were used. Results: The waiting times in modified schedule groups were shorter than in the control group (P<0.001). There was significant relationship between the length of waiting time and negative emotion (r=0.031, P<0.001), and low acceptability (r=-0.31, P<0.001) respectively. Covariates predicted negative emotions (Ps <0.001) after controlling for waiting time; however, controllability and stability did not predict acceptability (Ps>0.05) respectively after controlling for waiting time. Conclusion: A clinic scheduling intervention based on time and case would reduce outpatients' waiting time, resulting in increased satisfaction with services.