중국 장시성 누오(儺) 가면의 특성을 활용한 3D 디지털 패션디자인

유환,이연희 복식문화학회 2022 복식문화연구 Vol.30 No.3

The aim of this study was to develop Jiangxi Nuo masks using 3D digital fashion design technology and suggest various ways to utilize traditional culture based on the characteristics of Nuo masks, a traditional Chinese artifact of intangible cultural significance. The researchers conducted a literature review to gather information about Nuo culture and masks that could represent Jiangxi. Features of the masks were analyzed and classified. The result are as follows. First, the symbolic characteristics of Jiangxi’s Nuo masks can be divided into those based on their origin and history, the user’s social status, and the notions of primitive beliefs of the chosen people, such as naturism and totemism. Second, Nuo masks’ splendid decorations convey meanings such as luck, the bixie, longevity, wealth, and peace in the family. Third, playfulness in mask-making is about dismantling the original form of the mask, re-creating it through application. Fourth, the masks express primitiveness mostly by conserving the wood’s original color or material. The initial masks carved to represent images of figures aptly deliver the primitive forms and images of Nuo culture. In this study, Nuo masks were developed and produced using the 3D digital technology CLO 3D by adopting the expressive characteristics and applying design methods such as asymmetricity, exaggeration, and modification. The results of this study demonstrate the possibility of creating diverse as well as economical designs through the reduction of production.

은행 금융상품에서 프라이빗 뱅커의 전문투자형 사모펀드 추천 의사결정

유환,이영재 한국정보시스템학회 2019 정보시스템연구 Vol.28 No.4

Purpose The study aims to develop a data-based decision model for private bankers when recommending hedge funds to their customers in financial institutions. Design/methodology/approach The independent variables are set in two groups. The independent variables of the first group are aggressive investors, active investors, and risk-neutral type investors. In the second group, variables considered by private bankers include customer propensity to invest, reliability, product subscription experience, professionalism, intimacy, and product understanding. A decision-making variable for a private banker is in recommending a first-rate general private fund composed of foreign and domestic FinTech products. These contain dependent variables that include target return rate(%), fund period (months), safeguard existence, underlying asset, and hedge fund name. Findings Based on the research results, there is a 94.4% accuracy in decision-making when the independent variables (customer rating, reliability, intimacy, product subscription experience, professionalism and product understanding) are used according to the following order of relevant dependent variables: step 1 on safeguard existence, step 2 on target return rate, step 3 on fund period, and step 4 on hedge fund name. Next, a 93.7% accuracy is expected when decision-making uses the following order of dependent variables: step 1 on safeguard existence, step 2 on target return rate, step 3 on underlying asset, and step 4 on fund period. In conclusion, a private banker conducts a decision making stage when recommending hedge funds to their customers. When examining a private banker's recommendations of hedge funds to a customer, independent variables influencing dependent variables are intimacy, product comprehension, and product subscription experience according to a categorical regression model and artificial neural network analysis model.

Facial Exposure Dose Assessment During Intraoral Radiography by Radiological Technologists

유환,양한준 대한방사선과학회 2014 방사선기술과학 Vol.37 No.3

The study examined the changes in the decreased facial exposure dose for radiological technologists depending on increased distance between the workers and the X-ray tube head during intraoral radiography. First, the facial phantom similar to the human tissues was manufactured. The shooting examination was configured to the maxillary molars for adults (60kVp, 10mA, 50msec) and for children (60kVp, 10mA, 20msec), and the chamber was fixed where the facial part of the radiation worker would be placed using the intraoral radiography equipment. The distances between the X-ray tube head and the phantom were set to 10cm, 15cm, 20cm, 25cm, 30cm, 35cm, and 40cm. The phantom was radiated 20 times with each examination condition and the average scattered doses were examined. The rate at the distance of 40cm decreased by about 92.6% to 7.43% based on the scattered rays radiated at the distance of 10cm under the adult conditions. The rate at the distance of 40cm decreased by about 97.6% to 2.58% based on the scattered rays radiated at the distance of 10cm under the children conditions. Protection from the radiation exposure was required during the dental radiographic examination.

기반 기술 : 주석 도금한 커넥터의 접촉 하중의 변화에 의한 전기 접촉저항 변화에 관한 연구

유환신 ( Hwan Shin Yu ),오만진 ( Man Jin Oh ),박형배 ( Hyung Bae Park ),유환신 ( Hwan Shin Yu ),오만진 ( Man Jin Oh ),박형배 ( Hyung Bae Park ) 한국항행학회 2014 한국항행학회논문지 Vol.18 No.4

In order to investigate the effect of contact load, which is one of the fretting corrosion factors affecting the electric connector, a coupled fretting corrosion specimens were prepared using a tin-plated brass coupon with a thickness of 3 μm. Electric resistance of the contact was measured during the fretting corrosion test period. There was increase in resistance with fretting cycles. The change in resistance can be classified by 3 stages. The first stage exhibited low and stable resistance. Second stage showed steady increment of the resistance and third stage showed very high and intermittent resistance. The relationship between the failure cycle (Nf) and contact force (P) can be drawn as; It is possible to draw the prediction equation for the failure cycle of the electric connector corresponding to the very high and intermittent resistance under various environment conditions through the fretting tests under various conditions such as load, displacement, temperature.

한중FTA가 중국 시장에 미치는 영향에 관한 연구 -한국 화장품을 수출 중심으로-

유환,장휘 대한경영학회 2019 대한경영학회 학술발표대회 발표논문집 Vol.2019 No.1

자이로와 가속도 센서를 이용한 차륜형 도립진자 이동로봇 제어

유환신 ( Hwan Shin Yu ),박형배 ( Hyung Bae Park ) 한국항행학회 2012 한국항행학회논문지 Vol.16 No.4

This paper proposes the improvement of control performance in the wheeled inverted mobile robot system. and describes the modeling of a wheeled inverted pendulum type mobile robot driven by two different wheels for the position and velocity control. The system is sensitive on the parameter variation, therefore control signal should change to maintain desired state of the system in every instant. we designed proportional-plus-integral controller for our system, After linearization, the system was still unstable, throughout stability analysis of the system, we designed the values of the gains of a proportional-plus-integral controller. From the experimental results, we can find that the performance of the proposed method is better than of the manual tuning method.

기사 제목에 나타난 ‘암호화폐’의 인지언어학적 분석 - 암호화폐 인지모형 구축에 관한 試論

유환일 한국문화융합학회 2022 문화와 융합 Vol.44 No.3

The purpose of this study is to reveal what kind of cognitive model the media is trying to structure for readers who consume these news articles. In cognitive linguistics, the meaning of a word is interpreted by background knowledge based on the cognitive system beyond the dictionary definition, and this background knowledge is called a frame. We tried to analyze the components of the frame recognition model from the title of online news article, and also analyzed the schema element to supplement the contextual meaning that the frame could not explain. As a result, the components of the frame is ‘owner’, ‘mining entity’, and the ‘value’, ‘exchange’, and ‘government’ shared among them. First, cryptocurrency is being incorporated into the government system. The media were actively appealing for government intervention, and the exchange was accelerating the incorporation of the system. Second, the value of cryptocurrency is getting closer to a financial asset. The frame elements were gradually being consolidated as a ‘safe financial asset’ that had to pay taxes from means of contributing to illegal activities and had safety and a ‘risk financial asset’ that had both profitability and risk. Third, the illegality and immorality of the owners and miners are emphasized. As a result of analysis of the owner’s schema, it was confirmed that negative keywords were centered, and in the case of the miner, it was also an obstacle to energy waste and carbon reduction.

Effect of stereochemistry of aliphatic diamine on properties of fully or partially aliphatic polyimides

유환철,정재우,정찬문 한국고분자학회 2014 한국고분자학회 학술대회 연구논문 초록집 Vol.2014 No.4

Structure-property Relationships for Partially Aliphatic Polymides

유환철,Vijay Kumar S,최지영,Kazuaki Kudo,정찬운 한국고분자학회 2010 한국고분자학회 학술대회 연구논문 초록집 Vol.2010 No.10

스포츠 개념 재정립의 필요성과 방향

유환일 ( Yoo Hwanil ),박성주 ( Park Sungjoo ) 한국체육학회 2020 한국체육학회지 Vol.59 No.6

Assuming the genetic tie of sport to playfuness, competitiveness, and physicality, this paper has two goals as follows: it points out the limitations of existing concepts on these elements of sport; it then emphasizes the necessity of expanding on the concept of sport in light of social change. In order to achieve the goals, this paper reviews the literature by sport philosophers and examines the existent concepts of sport. Next, the main points are examined by analyzing the controversies over the concepts of sport, caused by the emergence of new sports. In the final section, we show the limitations of prior concept of sport, and suggest the necessity, as well as the direction, of conceptual modification of sport. Because the definition and value of sport has been changed over time, this study argues to redefine the concept of sport. In this way, fallacies can be minimized when we define sport within sociocultural context rather than using the existing theory which defines sport based on its inner components only.