• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.3034-3036
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• 2000

Recently the use of Laser Projector is ascending world-widely to make the best effiencies out of the various events & commercials. To produce fixed image through Laser projector, at least 24 times/sec of iteration is required. In this view, its performance is much influenced by coordinates extraction method for high-speed controlling. This paper basically introduces the way of inputting coordinates by extraction directly from outline rather than indicating size and directions of image's outline coordinates which used by renowned US company 'L' and etc.

• 전력전자학회:학술대회논문집
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• 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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• pp.961-965
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• 1998

The rapid development of small-scale (1-10 MJ) Superconducting Magnetic Energy Storage Systems (SMES) can be explained by real perspective of practical implementation of these devices in electro power nets. However the serious problem of all high mechanically stressed superconducting coils-problem of training and degradation (decreasing) of operating current still exists. Moreover for SMES systems this problems is more dangerous because of pulsed origin of mechanical stresses-one of the major sources of local heat disturbances in superconducting coils. We investigated acoustic emission (AE) phenomenon on model and 0.5 MJ SMES coils taking into account close correlation of AE and local heat disturbances. Two-coils 0.5 MJ SMES system was developed, manufactured and tested at Russian Research Center in the frames of cooperation with Korean Electrical Engineering Company (KEPCO) [1]. The two-coil SMES operates with the stored energy transmitted between coils in the course of a single cycle with 2 seconds energy transfer time. Maximum operating current 1.55 kA corresponds to 0.5 MF in each coil. The Nb-Ti-based conductor was designed and used for SMES manufacturing. It represents transposed cable made of Nb-Ti strands in copper matrix, several cooper strands and several stainless steel strands. The coils are wound onto fiberglass cylindrical bobbins. To make AE event information more useful a real time instrumentation system was used. Two main measured and computer processed AE parameters were considered: the energy of AE events (E) and the accumulated energy of AE events (E ). Influence of current value in 0.5 MJ coils on E and E was studied. The sensors were installed onto the bobbin and the external surface of magnets. Three levels of initial current were examined: 600A, 1000A, 2450 A. An extraordinary strong dependence of the current level on E and E was observed. The specific features of AE from model coils, operated in sinusoidal vibration current changing mode were investigated. Three current frequency modes were examined: 0.012 Hz, 0.03 Hz and 0.12 Hz. In all modes maximum amplitude 1200 A was realized.

• 비교문화연구
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• 제43권
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• pp.289-326
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• 2016

현대 러시아의 대내외정책 차원에서 '소프트 파워' 전략은 국가정책 실현을 위한 중요한 동인 중 하나로, 새로운 형태와 실현 방식을 모색해 나가면서 더욱 강화되는 추세이다. 이와 관련하여 러시아 정부는 '소프트 파워'의 적극적 활용에 기대어, 국제 무대에서 러시아의 긍정적 이미지 형성과 국가경쟁력 강화에 총력을 기울이고 있다. 러시아의 문화정책 역시 크게 두 가지 방향을 중심으로 전개되고 있는 양상이다. 현재 푸틴 대통령을 중심으로 구성된 크렘린 권력 수뇌부는 대내적으로 '애국심', '문화적 자긍심'을 바탕으로 단합과 단결을 추구하고, 대외적으로는 '강한 러시아'의 위상을 회복시킴과 동시에 과거 소비에트와 차별화 된 '새로운 러시아'의 이미지를 구축하기 위해 동분서주하는 양상이다. 이 과정에서 러시아는 '메가 스포츠이벤트'라는 핫 이슈를 효과적으로 활용하여 이러한 대내/대외 정책 노선을 더욱 강화시켜 나가고 있다. 이에 본 글에서는 러시아 소치 올림픽을 중심으로 메가 스포츠이벤트에 은닉된 정치적 메커니즘을 러시아 대내/대외 문화정책 차원에서 분석해본다. 동시에 '메가 스포츠이벤트' 개최 그 이후의 행보를 추적해봄으로써 단기적으로 불가피하게 발생되는 경제적 손실을 충분히 보상하고, 국가 브랜딩 기법을 통한 러시아의 국가 이미지 구축 및 전파전략에 상응하며, 동시에 러시아의 대내/대외 문화정책을 만족시키는 훌륭한 '소프트 파워'의 일환으로서 메가 스포츠이벤트의 주요 기능 및 정치적 차원에서 발휘되는 영향력을 짚어본다. 또한 메가 스포츠이벤트 효과에 대한 자국민의 인식을 객관적으로 가늠해보기 위해 2014년 소치 올림픽 대회 전후로 '전러시아 여론정보센터(ВЦИОМ)'에서 실시한 다양한 설문조사 결과를 분석, 적용해 본다. 동시에 앤홀트의 '국가브랜드 지수(NBI)' 및 영국의 '브랜드 파이낸스(Brand Finance)'에서 실시한 국가 브랜드 평가 지표에 기초하여 메가 스포츠이벤트 개최를 계기로 러시아의 대외 이미지가 어떻게 변화되었는지 살펴보고, 실제 크렘린에서 추구하고자 했던 대내외 정책 노선이 현실 차원에서 어느 정도까지 그 성과를 이룩했는지 추적해본다. 이러한 일련의 과정을 통해 메가 스포츠이벤트가 현 러시아 정부의 문화 정책적 관점에서 지니는 의의를 규명하고, 러시아 문화정책 기본 방향에 관한 지형도를 그려보는 동시에, 세계무대에서 러시아의 위상과 국가이미지 개선을 위한 정책 및 전략의 향방을 가늠해 볼 수 있을 것이다.

• 인터넷정보학회논문지
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• 제23권1호
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• pp.11-17
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• 2022

Data mining is the task of accessing useful information from a large capacity of data. It can also be referred to as searching for correlations that can provide clues about the future in large data warehouses by using computer algorithms. It has been used in the tourism field for marketing, analysis, and business improvement purposes. This study aims to analyze the tourist profile in Turkey through data mining methods. The reason relies behind the selection of Turkey is the fact that Turkey welcomes millions of tourist every year which can be a role model for other touristic countries. In this study, an anonymous and large-scale data set was used under the law on the protection of personal data. The dataset was taken from a leading tourism company that is still active in Turkey. By using the k-means clustering algorithm on this data, key parameters of profiles were obtained and people were clustered into groups according to their characteristics. According to the outcomes, distinguishing characteristics are gathered under three main titles. These are the age of the tourists, the frequency of their vacations and the period between the reservation and the vacation itself. The results obtained show that the frequency of tourist vacations, the time between bookings and vacations, and age are the most important and characteristic parameters for a tourist's profile. Finally, planning future investments, events and campaign packages can make tourism companies more competitive and improve quality of service. For both businesses and tourists, it is advantageous to prepare individual events and offers for the three major groups of tourists.

• 한국의류학회지
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• 제30권1호
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• pp.1-11
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• 2006

The purpose of this study was to analyze the current CRM situation in Korean apparel industry. Specifically, research purposes were 1) to examine the concepts and benefits of CRM, 2) to examine CRM strategies, 3) to analyze CRM system(i.e., customer relationship management service, customer segmentation criteria, DB management system), and 4) to analyze the potential problems and CRM adoption plan. The subjects for this research were thirty CRM managers in Korean apparel firms classified by the company type(woman's wear, man's wear, casual wear, children's wear, retailer) interviewed from December 2003 to March 1004. The results of this study were as follows: First, the concept of CRM represented the prime customer relationship, continuous consideration, and customer management system. The benefits of CRM reflected re-sales, improvement of profit share, and acquisition of customer's data base. Second, concerning the CRM strategies, most companies focused on persistent customer management through mileage program, membership cards and also implemented product strategies such as demand forecasting, customization based on customer data analysis. We also found that industry preferred to use pricing strategies, for example, segmentation of customer through discrepancies of price in which customers are provided by discount and gift voucher services. Regarding distribution strategy, channel diversification, localized service, and convenient delivery system were used. As promotion strategies, they chose celebrating customers' personal events and promoting cultural events and issuing coupons. Third, regarding CRM system, information service was the most frequently adopted, important and highly beneficial category. Also POS/web-POS, homepage were main sources of information. RFM is the mostly commonly used customer segmentation criteria. Fourth, potential problems in CRM adoption were lack of CRM knowledge and performance measurement of CRM. Future CRM adoption plan included CRM education and development of CRM performance measures.

• Safety and Health at Work
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• 제4권3호
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• pp.160-165
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• 2013

Background: Occupational accidents are unplanned events that cause damage. The socio-economic impacts and human costs of accidents are tremendous around the world. Many fatalities happen every year in workplaces such as electricity distribution companies. Some electrical injuries are electrocution, electric shock, and burns. This study was conducted in an electricity distribution company (with rotational 12-hour shift work) in Iran during an 8-year period to survey descriptive factors of injuries. Methods: Variables collected included accident time, age of injured worker, employment type, work experience, injury cause, educational background, and other information about accidents. Results: Results indicated that most of the accidents occurred in summer, and 51.3% were during shift work. Worker negligence (malpractice) was the cause of 75% of deaths. Type of employment had a significant relationship with type of injuries (p < 0.05). Most injuries were electrical burns. Conclusion: High rate of accidents in summer may be due to the warm weather or insufficient professional skills in seasonal workers. Shift workers are at risk of sleep complaints leading to a high rate of work injuries. Acquiring knowledge about safety was related to job experiences. Temporary workers have no chance to work all year like permanent workers, therefore impressive experiences may be less in them. Because the lack of protective equipment and negligence are main causes of accidents, periodical inspections in workshops are necessary.

• 디지털융복합연구
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• 제9권3호
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• pp.105-116
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• 2011

기술혁신은 국가의 경제 성장과 기업의 경쟁력 강화를 좌우하는 중요한 요소이다. 선진국들은 국가 경쟁력 강화를 위해 지식집약적 산업과 첨단기술기반 산업에 대한 육성 및 투자에 관심을 집중하고 있다. 특히 첨단기술기반 산업의 경우는 한국의 대표적인 산업으로서 정부에서 적극적으로 지원을 하고 있다. 이러한 첨단기술기반 산업에서는 특허가 기업의 중요한 경쟁우위 요소가 될 수 있는데 현재 이와 관련된 국내에서의 실증연구는 미흡한 실정이다. 본 논문은 특허가치평가시 평가 요인들이 IT 및 BT 산업별로 차이중요도에 어떠한 차이가 있는지를 연구의 목적으로 하고 있다. 봄 연구에서는 비교 분석을 위해 특허가치평가기관의 평가 모형과 기존의 선행연구에서 제시된 요인들 중에서 중요 요인을 도출하여 사용하였다. 또한 AHP 기법을 활용하여 IT와 BT 산업별로 특허가치평가 중요 요인들이 어떠한 차이를 보이는지에 대하여 분석하였다. 분석 결과, 특허가치평가 중요 요인들이 산업별로 차이를 보이는 것으로 나타났다.

• 한국실내디자인학회논문집
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• 제23권5호
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• pp.192-201
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• 2014

This study conducted a survey of residents living in senior housing in the outskirts of Tokyo metropolitan area where the demand for senior housing is rising. The study examined their motives for moving into senior housing, criteria for housing selection, and their degree of satisfaction with living in senior housing. The analysis results are as follows. First, the majority of respondents gave reasons for moving into senior housing such as wanting to live with more comfort and freedom and not wanting to live with their spouse any longer. Second, in choosing conditions their senior housing, the respondents put priority on the credibility of a management company, and they also valued easy accessibility to the place. In addition, they wanted the environment to be suitable for a stroll. Third, as for the degree of satisfaction with the living facilities, the respondents expressed dissatisfaction with kitchen and storage areas most frequently. This suggests that it is necessary to consider the physical characteristics of elderly people when planning senior housing by securing kitchen facilities that support independent living and provide more storage space. Fourth, in terms of the level of satisfaction with residential services, the respondents were quite content with their consulting services, response to their complaints, and the surrounding environment. However, they were less satisfied with events organized by the management company, or the in-house medical service.

• Journal of Nutrition and Health
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• 제52권6호
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• pp.593-603
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• 2019

Purpose: Previous studies have highlighted that the nutritional behaviors among South Korean workers are far from ideal. This study examined the organizational influences affecting the eating practices of office workers in South Korea. Methods: We conducted in-depth interviews with 22 office workers at 12 companies in South Korea. The interviewer inquired about the employees' daily routines on food and beverage intake. The various factors that influence their food choices in their work environments were also explored. The interviews were transcribed and then analyzed using a content analysis. Results: A framework analysis revealed 7 key recurring themes, and these were grouped under three levels: team-, company-, and corporate group-levels. First, team dinners are core social events for all the workers and they tend to include high-caloric food and alcoholic beverages. The frequency of team meals and the food associated with them depend on various team characteristics such as gender composition, the nature of a team's work and the team leaders' emphasis on group meals. Second, the company's policies and practices regarding budget allocation for team meals and subsidies for cafeteria meals affect the workers' food intake practices. In addition, the physical environment of the worksite cafeterias can influence the choices of foods. Third, various corporate group policies that were not designed to target food intake had additional positive effects on the workers' eating behaviors. Conclusion: This study provides important insights into the broader organizational influences on the food consumption of employees in their workplace. These insights can be used to design and implement more effective intervention strategies for improving the nutritional behaviors of office workers.

• Ocean Systems Engineering
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• 제6권2호
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• pp.143-159
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• 2016

Cargo, such as a Tension Leg Platform (TLP), Semi-submersible platform (Semi), Spar or a circular Floating Production Storage and Offloading (FPSO), are frequently dry-transported on a Heavy Lift Vessel (HLV) from the point of construction to the point of installation. The voyage can span months and the overhanging portions of the hull can be subject to frequent wave slamming events in rough weather. Tie-downs or sea-fastening are usually provided to ensure the safety of the cargo during the voyage and to keep the extreme responses of the cargo, primarily for the installed equipment and facilities, within the design limits. The proper design of the tie-down is dependent on the accurate prediction of the wave slamming loads the cargo will experience during the voyage. This is a difficult task and model testing is a widely accepted and adopted method to obtain reliable sea-fastening loads and extreme accelerations. However, it is crucial to realize the difference in the inherent stiffness of the instrument that is used to measure the tri-axial sea fastening loads and the prototype design of the tie-downs. It is practically not possible to scale the tri-axial load measuring instrument stiffness to reflect the real tie-down stiffness during tests. A correlation method is required to systematically and consistently account for the stiffness differences and correct the measured results. Direct application of the measured load tends to be conservative and lead to over-design that can reflect on the overall cost and schedule of the project. The objective here is to employ the established correlation method to provide proper high-frequency responses to topsides and hull design teams. In addition, guidance for optimizing tie-down design to avoid damage to the installed equipment, facilities and structural members can be provided.