요리사브랜드 속성, 애착, 고급레스토랑 소비자반응에 관한 연구

남윤정(Yoon Jung Nam),조민호(Min Ho Cho) 한국호텔외식관광경영학회 2013 호텔경영학연구 Vol.22 No.6

The purpose of this study is to understand chefs from a human brand perspective and to explicitly explain the interrelationship between the chef brand`s attributes and their effects on consumer attachment and response to fine dining restaurants of celebrity chef. Furthermore, the study verified the moderating role of the customers` conspicuous consumption tendency. To achieve the purpose, factor analysis, simple, multiple, and hierarchical regression analysis were used. Results of the empirical analysis of this study indicate that “similarity/familiarity” and “professionalism”?among four chef brand`s attributes “similarity/familiarity,” “favorable impression,” “professionalism,” and “truthfulness”?are the attributes most related to the level of attachment to celebrity chef, and that “professionalism” and “truthfulness” positively influenced consumers` responses to fine dining restaurants of celebrity chef. In addition, it is found that attachment to the chef brand positively influenced consumers` responses to fine dining restaurants. And it is showed that the customers` conspicuous consumption tendency moderates the relationships between “truthfulness and consumers` responses to fine dining restaurants. Finally, the study closes with a discussion about its theoretical and practical contributions and implications, and limitations.

강직성 척추염 환자에서 Infliximab 투여 후 헤노흐-쇤라인 자색반 1예

정우진 ( Woo Jin Jung ),남윤정 ( Yoon Jeong Nam ),이승근 ( Seung Geun Lee ),김지민 ( Ji Min Kim ),송마가렛 ( Margaret Song ),김문범 ( Moon Bum Kim ),김근태 ( Geun Tae Kim ) 대한내과학회 2013 대한내과학회지 Vol.84 No.5

저자들은 강직성 척추염 환자에서 infliximab을 사용한 이후 발생한 헤노흐-쇤라인 자색반을 진단하고 약제 중단 및 스테로이드 요법으로 재발 없이 성공적으로 치료하였기에 문헌고찰과 함께 보고하는 바이다. Tumor necrosis factor alpha (TNF-α) inhibitors are used widely to treat patients with active rheumatoid arthritis and ankylosing spondylitis (AS). Although various cutaneous reactions can occur as side effects of TNF-α inhibitors, systemic vasculitis requiring withdrawal of the agent and immunosuppressive drugs is rare. A 59-year-old male with AS who had been treated with infliximab for 60 months visited us with complaints of palpable purpura on both legs and severe abdominal pain. Abdominal computed tomography showed diffuse wall thickening of the proximal jejunum and ileum and a skin biopsy revealed leukocytoclastic vasculitis. The patient was diagnosed with Henoch-Schonlein purpura (HSP). Infliximab was discontinued and systemic steroid therapy at 0.5 mg/kg resulted in prompt resolution of the HSP. Here, we report the first case of HSP in a patient with AS after infliximab treatment. (Korean J Med 2013; 84:764-768)

EV Battery Pack 고장분석에 있어서 EIS Analysis 적용에 관한 연구

유기수(Kisoo Yoo),남윤정(Yoon-Jung Nam),김언효(Eon-Hyo Kim),이다은(Daeun Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11

EV battery packs have mechanical structural problems such as cell/module fixation failure and thermal problems such as heat dissipation performance degradation. In this study, we tried to confirm the applicability of Electrochemical Impedance Spectroscopy Analysis to detect such failures in advance. General aging, vibration, and high-temperature accelerated aging tests were performed on a cell-by-cell basis, and EIS analysis was performed for each cycle. Through EIS analysis, it was confirmed that the electrode aging was induced in the vibration acceleration test while the electrolyte degradation was done in the high temperature accelerated aging test, respectively. Also, the possibility of EV application was investigated by manufacturing a BMS-linked EIS module. In this case, auto z-fitting algorithm was developed and tested to confirm the ECM(equvialent circuit model) element value

다중물리모델 기반 이차전지 열거동 분석에 관한 연구

이수빈(Subin Lee),남윤정(Yoon-Jung Nam),유기수(Kisoo Yoo) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.4

리튬이온 전지를 사용하는 전지 모듈/팩에서 열관리는 매우 중요한 문제이다. 이러한 관점에서 본 연구는 모듈/팩단위의 전지 열거동을 엄밀히 예측할 수 있는 발열 모델을 제시하고자 하였다. 이차전지의 열해석을 위하여 열 생성 및 소산에 관련된 리튬 전지 발열요소를 가역열과 비가역열로 구분하여 설명하였다. 비 가역 발열의 경우 등가저항을 기반으로 한 Joule-heating 으로 모델링 하게 되는데 이는 전기화학적반응 계산을 회피하기 위한 것으로 수치계산 부담을 현격히 줄일 수 있다. 이때 전기적인 등가저항은 전기화학분광법에 의하여 결정되는데 본 연구에서는 충전율(SOC)을 등간격으로 나누어 등가저항값의 변화를 살펴보았다. 추가적으로 Bultler-Volmer Equation, Ionic Conduction Equation의 해석적인 접근법을 통하여 등가저항값의 변화를 설명하였으며 실험적으로 구한 값과 비교 분석하였다. 이를 통하여 완전충전 /방전 근방에서 급격한 저항값의 변화는 전극으로의 리튬 삽입(Lithium-intercalation) 저항에 기인한다는 것을 밝혀 내었다. 또한 본 연구에서 개발된 단일 셀에 대한 전기발열모델을 IBC 기법을 적용한 발열량 측정값과 비교 검증하였으며 셀/모듈/팩 열 거동 분석을 수치적, 실험적으로 수행하였다 본 분석을 통하여 등가저항기반 발열모델의 신뢰성이 입증되었으며 리튬 전지 모듈/팩의 열설계시 해당모델의 적용 가능성이 확인되었다. Heat management is a critical issue during the operation of battery modules, packs, and trays. A full-scale analysis model for accurately predicting the thermal behavior of batteries is proposed herein. In this study, the heat generation and dissipation terms were classified for both irreversible and reversible heat. The irreversible heat was formulated according to the Joule-heating model with internal resistance in order to circumvent the calculation of electrochemical reactions that require significant computational loads. The internal resistance in the Joule-heating model was determined via electrochemical impedance spectroscopy (EIS). The electrical equivalent resistance is determined by EIS analysis and, in this study, the change of the value was investigated by equal intervals of SOC. Additionally, an analytical formulation of the resistance was derived from the electrochemical kinetic equations to explain the rapid changes. Analysis revealed that the rapid changes were due to the Li intercalation phenomenon in the electrodes. Thermal analyses were conducted according to the proposed model for Li-ion single cells, and the simulation results exhibited good agreement with the experimental data. In addition, the heat generation model developed in this study was compared and verified with the calorific value measured using the IBC technique, and the cell/module/pack open-air analysis was performed numerically and experimentally. Through this analysis, the reliability of the equivalent resistance-based heating model was verified, and the applicability of the corresponding model was confirmed in the thermal design of the lithium battery module/pack.

중국 모바일영화예약 시스템과 application 구현 및 활용

곽영식(Young sik Kwak),남윤정(Yoon jung Nam) 한국창업학회 2013 한국창업학회 Conferences Vol.2013 No.1

This case study is to introduce a Mobile Movie Reservation System (MMRS) and its internal system developed by a theater company which operates 17 theaters in China. Through this case study, from a business perspective, components or subsystems within the movie reservation system can be identified. Further, reservation information by individual and segment level can be collected through this reservation system and put into a database. Then, through mixture modeling, a list of recommended film contents that a mobile phone user would most likely to reserve is shown on the application user interface. From an academic point of view, post-hoc segmentation has taken center stage, but in the film industry, mixture modeling, which is rarely used in practice, is being used. Especially, the output example in fuzzy clustering algorithm by mixture modeling in MMRS shows the probability of when, where, and which movie a potential moviegoer choosing movies.

Development of the Online Activity Index of K-pop Fans

Young-Sik Kwak(곽영식),Jae-Won Hong(홍재원),Yoon-Jung Nam(남윤정),Kang-Il Han(한강일),Mi-Hee Kim(김미희),Byeong-Min Na(나병민),Xue Wang,He-Feng Song 한국컴퓨터정보학회 2021 韓國컴퓨터情報學會論文誌 Vol.26 No.9

본 연구는 K-pop 팬들의 온라인 활동 내용과 활동의 정도를 실증적으로 측정하는 것을 목적으로 한다. 연구목적 달성을 위해 먼저 K-pop 아티스트에 대한 팬 애착도에 영향을 주는 주요 온라인 활동들을 탐색하였으며, 나아가 해당 온라인 활동들의 상대적 중요성을 도출하였다. 이를 통해 궁극적으로 K-pop팬 온라인 활동지수(KOAI: K-pop fans’ Online Activity Index)를 개발하였고 개별 응답자들의 KOAI를 실증적으로 측정하였다. 연구결과 K-pop 팬 온라인 활동지수(KOAI)는 팬클럽 가입 여부, V live+ 유료시청 여부, 아티스트 관련 VOD 시청 여부, 팬클럽에 글을 쓰는 정도, 아티스트의 가치를 높이기 위해 관련 유튜브를 보는 정도 등 K-pop 팬들의 다섯 가지 온라인 활동으로 구성됨을 알 수 있었다. 본 연구는 K-pop 마케터로 하여금 팬 반응을 얻기 위한 다양한 온라인 활동에 마케팅 자원을 보다 효율적이고 효과적으로 배분할 수 있는 기준을 제공함으로써 마케팅 성과를 높이게 하였다는 데 실무적 의의가 있다. 또한 K-pop 팬들의 온라인 행동을 이해하기 위한 학문적 지식 축적에 기여가 있다. This study aims to empirically measure K-pop fans" content and the extent of online activities. To achieve the purpose of the study, the researchers identify the statistically significant online activities that determine the intensity of fan attachment toward K-pop artists. Further, the research confirms the relative importance of various meaningful online activities. Consequently, we can develop the K-pop Online Activity Index (KOAI) model and apply it to this index model empirically for each respondent. We found that the model consists of five online activities of K-pop fans: whether joining the fan club or not, whether paying per view V live+ or not, whether watching VODs associated with artists or not, the degree of fan club writing, the degree of watching a lot on YouTube to improve the value of my artists. This study has practical significance in that it allows K-pop marketers to improve their marketing performance by providing content that will enable them to more efficiently and effectively allocate marketing resources to various online activities to get fan responses. It allows accumulating academic knowledge to understand the behavior in the field of online behavior for K-pop fans.