제조물책임법 시행에 대한 중소기업의 대응방안 연구 / : 안양권 기업을 대상으로

이동수 숭실대학교 대학원 2003 국내석사

인터넷뱅킹 서비스품질이 고객만족 및 재이용 의도에 미치는 영향

이동수 영남대학교 대학원 2009 국내석사

The Study on the Effect of the Internet Banking Service Quality on Consumer Satisfaction and Reusing Intention Dong-Soo Lee Dept. of Business Administration Graduate School Yeungnam University (Directed by Professor Yeung-Bong Park) Abstract Internet banking is the system where the consumer is offered a variety of financial services through PC and the arrangement of the host computer in the bank. In 1999, the Shinhan bank first started to arrange the internet banking service in Korea. Nowadays, the internet banking is one of the most important services of the bank industries. Because of the evolution and expansion of communication through internet and the merit of internet banking, the share of internet banking in bank is enlarging. Many domestic banks have been deeply interested in the establishment of a strong customer relationship to acquire advantages due to severer competition in bank industries. Customer satisfaction and reusing intention, which as an important strategic goal can be realized through marketing practices, is absolutely crucial for steady and superior economic expansion. Therefore, this study identifies internet banking service quality, customer satisfaction, reusing intention, characteristic of internet banking user. Additionally, investigate the determinants of service quality and empirically investigate relationships among the service quality, customer satisfaction and reusing intention . For this study, existing references regarding service quality, customer satisfaction, and reusing intention were reviewed, and research model was then created. To that end, population that is over 18 years adults using internet banking in Daegu Metropolitan City is established, 250 samples were selected with convenience random sampling method and finally 212 samples were used of this study. After executing pilot study and verifying construct validity and reliability, questionnaire were filled out by the samples with self-adminstration method. The statistical methods for this study were descriptive analysis, reliability, factor analysis and regression analysis using SPSS/PC Windows 12.0. From the result of statistical analysis, it was appealed that 6 service quality factors(tangibility, reliability, responsiveness, conviction, empathy, and stability) are affected to customer satisfaction, and customer satisfaction affected reusing intention. The study provides following suggestions, Although the 6 factors deciding service quality show difference in regression factor score, it generally provides customers with positive affect. Also, it was found that customer satisfaction acted as the significant mediating variable to reinforce the relationship between service quality and customer reusing intention in internet banking. As suggested by the results of this study, we provide brief discussion of strategic guidelines about domestic internet banking and further researches are suggested. Key wards : internet banking, internet banking service quality, customer satisfaction, reusing intention. 인터넷뱅킹 서비스품질이 고객만족 및 재이용 의도에 미치는 영향 이동수 영남대학교 대학원 경영학과 마케팅 전공 (지도교수 박영봉) 요 약 본 논문은 전통 은행 서비스품질과 인터넷 뱅킹 서비스품질에 영향을 미치는 요인을 규명함으로 은행의 서비스품질 향상에 도움을 주고, 이러한 요인들이 인터넷 뱅킹 고객들의 고객만족도와 재이용의도에 어떻게 영향력을 행사하는 가를 실증적 연구를 통해 비교분석함으로 은행 마케팅전략의 계획과 실행에 실무적 도움을 제공하고, 더 나아가 인터넷 뱅킹 서비스품질에 대한 유용한 통찰력과 전략적 시사점을 제공하는 것을 목적으로 진행되었다. 이를 위해 서비스의 정의와 특징, 서비스품질, 고객만족 및 인터넷뱅킹과 관련된 문헌연구를 충실히 수행하였고, 이를 토대로 인터넷 뱅킹 서비스품질 결정요인들을 추출한 다음, 인터넷뱅킹 서비스품질요인을 독립변수로, 재이용의도와 만족도를 종속변수로 두고 변수들간의 인과관계를 회귀분석을 이용해서 검증하였다. 연구결과, 인터넷 뱅킹을 주로 이용하는 고객층은 10대 후반-40대의 연령층으로 대학생 또는 경제활동에 직접 참여하는 사람들이며, 인터넷뱅킹에 대한 수요는 점점 증가하고 있음을 확인하였다. 또한 인터넷뱅킹 서비스품질요인중 신뢰성에 가장 주력하는 것이 고객만족도를 높이며, 이러한 고객만족도는 재이용의도에 정(+)의 영향력을 미치는 것으로 나타났다. 이러한 결과는 최근 고객만족과 충성도를 연구하는 다른 연구결과와도 일치한다. 요약하면, 인터넷뱅킹 서비스품질의 6가지 결정요인들은 고객만족에 모두 정의 영향을 미치며, 고객만족은 고객의 재이용의도를 이끈다는 연구결과를 토대로 은행들은 탁월한 서비스품질을 지속적으로 제공하기 위한 노력에 경주할 필요가 있음을 시사하고 있다.

한국 민간 오케스트라 활성 방안 연구 : 유라시안 필하모닉 오케스트라의 경영 방법 중심으로

이동수 단국대학교 2005 국내석사

Many new art organizations are being formed as recognition and interest in culture are highly increased. This study aims to examine proper operation methods of orchestra organization, which can be the representative of art organizations, and investigate the direction where Korean orchestras have to go. Considering 70 years of Korean orchestras’ history, many organizations are active although the history is short. However, in the aspects of operation and management, they are still novices. Therefore, the following three research questions were selected in order to examine the present situation of Korean orchestras and their problems and investigate the management method of the Euro-Asian Philharmonic Orchestra that is evaluated as the best Korean private orchestra. 1. What are the operation policy and management method of the Euro-Asian Philharmonic Orchestra? 2. What are the receptors’ awareness, motive, and satisfaction level for the Euro-Asian Philharmonic Orchestra? 3. How does the Euro-Asian Philharmonic Orchestra influence on Korean society and general culture? In order to draw answers for the questions above, internal management positions were interviewed and 669 people across 10 cities were surveyed. Based on the analysis of the interview and survey, the following results were obtained. First, in regard of the operation policy and management method of the Euro-Asian Philharmonic Orchestra, 8 staffs in the operation department were in charge of each marketing, public relations, musical instruments, musical notes, and stage planning. The number of staffs is three times more than the average number of office staffs in general Korean orchestras, and such professional manpower is evaluated to be the key to activate the management of orchestra Second, in regard of the receptors’ awareness, motive, and satisfaction level for the Euro-Asian Philharmonic Orchestra, as many as 62.0% of respondents said that they were aware of the orchestra. Considering that it has not been long since the orchestra was formed, the awareness level of the orchestra was evaluated to be high for its’ short history. Third, in regard of the influence of Euro-Asian Philharmonic Orchestra on Korean society and general culture, its social contribution in a short period brought a big change of awareness in the cultural and financial circles. In the aspect of the planning power, it was also playing a role as a cultural missionary by providing an opportunity for cultural minorities to have access to culture as it was promoting new programs such as moving concerts According to the results above, first, in terms of the operation and management, it was found that the orchestra was being financed by companies through the solid planning power based on the specialized manpower. Second, considering the receptors’ awareness level for the Euro-Asian Philharmonic Orchestra, it showed a high awareness level for the orchestra’s short history. The orchestra was drawing interest from the press and society by planning as many as 120 musical performances per year and new concerts. Third, by performing for cultural minorities through moving concerts, it provided the class who were estranged from culture with an opportunity to have access to music. By doing so, it arranged the cultural basis where all people, not only an exclusive group, can share music together. Integrating the results above, for the activation of Korean private orchestras, many independent organizations such as the Euro-Asian Philharmonic Orchestra should be formed and lead orchestras with business mind not with administration dimension when it comes to operation. 본 연구의 목적은 문화에 대한 인식과 관심도가 매우 높아지고 있는 시점에서 많은 예술단체들이 새로이 생겨나고 있다. 이 논문에서는 여러 예술단체 중 가장 대표적이라고 할 수 있는 오케스트라 단체의 올바른 운영 방법을 알아보고 앞으로 우리나라 오케스트라가 나아가야 할 방향에 대해서 모색해 보도록 한다. 우리나라 오케스트라 70년 역사에 비추어보면 짧은 역사지만 많은 단체가 활동 중인 것을 볼 수 있다. 하지만 운영이나 경영면에 있어서는 아직 초보의 단계를 벗어나지 못하고 있는 실정이다. 이에 우리나라 오케스트라의 현황과 함께 문제점을 살펴보고 우리나라 민간 오케스트라 중 가장 성공적이라고 평가 받고 있는 유라시안 필하모닉 오케스트라의 경영 방법을 알아보기 위해 다음 3가지 연구문제를 설정하였다. 1. 유라시안 필하모닉 오케스트라의 운영 방침 및 경영 방법은 어떠한가? 2. 유라시안 필하모닉 오케스트라의 수용자 인지 및 이용 동기 만족도는 어떠한가? 3. 유라시안 필하모닉 오케스트라가 한국 사회와 문화 일반에 미치는 영향은 무엇인가? 위의 연구문제에 대한 결과를 도출하기 위해 유라시안 필하모닉 오케스트라의 내부 경영진의 심층 인터뷰와 함께 10개 도시에 걸쳐 669명의 설문조사 분석 결과를 바탕으로 위 연구문제에 대한 다음과 같은 결론을 얻을 수 있었다. 첫째, 유라시안 필하모닉 오케스트라 운영 방침 및 경영 방법에 대해서는 운영국 8명의 직원이 마케팅, 홍보, 악기, 악보, 무대기획 등으로 세분화해서 운영 되어지고 있었다. 이는 우리나라 오케스트라 평균적인 사무직 직원 비율의 3배에 해당하는 숫자로 이런 전문적인 인력에서 오케스트라 경영의 활성화가 이루어지는 것으로 평가 되었다. 둘째, 유라시안 필하모닉 오케스트라의 수용자 이용 동기와 만족도에 대해서는 유라시안 필하모닉 오케스트라를 기존에 알고 있었다고 응답하는 숫자가 전체 응답자의 62.0%로 비교적 많은 숫자가 알고 있었는데 이는 창단 된지 얼마 되지 않은 것을 고려한다면 유라시안 필하모닉 오케스트라의 역사에 비해 인지 율이 매우 높은 것으로 평가 되었다. 셋째, 유라시안 필하모닉 오케스트라가 한국 사회와 문화 일반에 미치는 영향에 대해서는 짧은 기간 동안에 사회공헌도는 문화계 뿐 아니라 재계에도 많은 인식의 변화를 가져왔다. 기획력에 있어서도 찾아가는 음악회 등 많은 새로운 기획을 하면서 문화를 접할 기회가 없었던 많은 문화 소외 계층에게도 문화를 접 할 수 있는 기회를 제공해 줌으로서 문화 전도사의 역할도 같이 담당하고 있었다. 위의 연구 결과를 살펴볼 때 첫째, 운영이나 경영에 있어서는 전문화 된 인력을 바탕으로 한 탄탄한 기획력을 통해 기업에게서 많은 재원을 충당 하고 있는 것을 볼 수 있었다. 둘째, 유라시안 필하모닉 오케스트라의 수용자 인지도를 살펴볼 때 짧은 기간에 비해 높은 인지도를 나타내고 있는데 이는 연 120회에 달하는 연주와 새로운 음악회를 기획해 냄으로서 많은 언론과 사회의 관심도를 집중 시키고 있었다. 셋째, 문화소외 계층을 찾아가서 연주함으로서 문화의 사각지대에 놓여있는 계층에게 음악을 접 할 수 있는 기회를 제공하여 음악을 일부 소수의 전유물이 아닌 모든 사람이 같이 공유 할 수 있는 문화적 토대를 마련하였다. 위의 결과를 종합해 보면 우리나라 민간 오케스트라의 활성화를 위해서는 유라시안 필하모닉 오케스트라 와 같이 많은 독립된 단체들이 생겨나서 운영에 있어 행정이 아닌 경영의 마인드로 오케스트라를 이끌어 나가야 할 것이다.

블루베리 첨가량을 달리한 과편의 품질 특성 연구

이동수 세종대학교 일반대학원 2009 국내석사

블루베리 첨가량을 달리한 과편의 품질 특성 연구 블루베리즙의 첨가량을 달리하여 제조한 과편의 일반성분, pH, 색도, 당도, 항산화성(DPPH), 텍스쳐, 안토시아닌, 관능검사를 실시하고, 상호관계를 비교 검토한 결과는 다음과 같다. 블루베리즙의 일반성분은 수분 89.03%, 조단백 0.70%, 조지방 0.53%, 조회분 0.21%이었다. 당도는 블루베리즙이 8.90 Brix, pH는 블루베리즙이 3.59로 나타났으며, 항산화 측정후 DPPH는 블루베리즙이 82.61이였고, 블루베리즙으로부터 추출한 안토시아닌의 함량은 78.80이었다. 블루베리즙 첨가량에 따른 블루베리편의 수분함량은 블루베리즙 20% 첨가군인 BP4가 가장 높게 나타났으며, 유의적인 차이가 있었다.(p<0.05) pH 측정 결과 블루베리즙 첨가량의 감소로 인해 3.82에서 4.16으로 pH는 증가하였고, 각 시료간의 유의적인 차이가 있었다.(p<0.05) 색도 측정 결과 명도(lightness)를 나타내는 L값의 경우 블루베리 첨가량이 증가할수록 명도 L값이 낮아짐을 알 수 있었다. 적색도(redness)를 나타내는 a값의 경우 블루베리즙 첨가량이 많아질수록 적색도가 높은 값을 보였다. 황색도(yellowness) b값의 경우 블루베리즙 80% 첨가한 BP1이 -0.71로 높게 나타났으며, BP4가 -4.56으로 가장 적은 값을 보였다. 각 시료간 유의적인 차이가 있었다.(p<0.05) 당도 측정 결과 60% 첨가군부터 당도가 증가되는 경향을 보였으며, 블루베리즙의 함량이 높을 수록 당도가 높아지는 경향을 보였고, 각 시료간 유의적인 차이를 나타냈다.(p<0.05) 블루베리편의 항산화성(DPPH) 측정 결과 블루베리즙 100% 첨가군인 BP0가 81.72로 가장 높게 나타났으며, 블루베리즙의 DPPH값과 블루베리즙 100%첨가하여 제조한 과편의 DPPH값이 각각 82.61과 81.72의 값을 보였으므로 열에 의한 항산화성의 감소가 크지 않음을 나타내었다. 블루베리편의 텍스쳐 측정 결과, 경도는 블루베리즙의 20% 첨가군인 BP4가 799.01로 가장 높은 값을 나타냈고, 100% 첨가군인 BP0가 511.51로 가장 낮은 값을 보였다. 탄력성과 응집성, 점착성, 씹힘성, 부착성은 블루베리즙 첨가량에 관계없이 큰 유의적인 차이를 나타내지 않았다. 블루베리편의 안토시아닌 함량 측정 결과 100% 첨가군인 BP0가 75.30으로 가장 높은 경향을 보였고, 블루베리즙의 안토시아닌 함량과 블루베리즙 100%첨가하여 제조한 과편의 안토시아닌 함량의 값이 각각 78.80과 75.30의 값을 보였으므로, 열을 가하여 제조한 과편의 안토시아닌 함량에 변화가 크지 않음을 나타내었다. 블루베리편의 관능검사에서는 외형, 색깔, 단맛, 투명도, 씹힘성, 전체적인 기호도에서는 60% 첨가군인 BP2가 가장 높게 나타났으며, 신맛은 100% 첨가군인 BP0가 가장 높은 경향을 보였고, 탄력성 및 경도는 40% 첨가군인 BP3가 높은 값을 보였다. 블루베리즙 첨가량을 달리하여 제조한 블루베리편 중에서 60% 첨가하여 제조한 BP2가 블루베리편의 제조시 최적 배합비인 것으로 판단되었고, 블루베리의 주요 기능적 특성인 항산화성과 주요 색소인 안토시아닌의 열에 대한 안정성에서 우수한 결과를 나타내었다. 주제어 : 블루베리 , 과편 , 안토시아닌 항산화성 , 블루베리편

항공기 소프트웨어의 원자성위배를 자율적으로 수리하기 위한 효율적 건전성관리 시스템

이동수 慶尙大學校 2018 국내석사

As the significance and the number of software components in avionics are increasing, the complexity of airborne software are also increasing. As the result of increasing complexity of airborne software, software errors which are difficult to both detect and fix are hidden in the system. To support detection of hidden errors, airborne system deploys health management system that provides he ability to repair or mitigate errors on a run-time phase. Health management system reveals errors in sequential programs; however, it does not have the ability to detect errors in concurrent programs. Since the behavior of concurrent programs are non-deterministic, the errors in the system are hard to detect and fix. One type of concurrency errors that this works tries to solve is atomicity violation. Atomicity violations, which account for two-thirds of reported concurrency errors, are important because they occur most frequently. Existing researches solve the problem on atomicity violation in two steps: Detection protocol and Recovery engine. The detection protocol decides the rules for storing sequence of thread execution and reports the threads that might violate atomicity of operations. With given information from the protocol, the recovery engine reorders the sequence execution. The overhead of existing approaches are time and space overhead in tracking number of threads and the number of shared variables used in the software system, respectively. We presents AV-HM (Atomicity Violation – Health Management) which predicts an atomicity violation based ideal program execution scenario and stalls an problematic access events. To provide this capability, AV-HM interacts with the ARINC-653 Health Monitor by reporting to the Health Monitor if an atomicity violation was predicted, invoking the repairing engine, and stalling the erroneous execution. The experiment was conducted by measuring the execution time of synthetic programs containing atomicity violation patterns described on bug reports of MySQL, Apache, and Mozilla. The experimental results show that the AV-HM is capable of repairing patterns and reducing time overhead significantly. AV-HM only consumes 1.2 times the program's execution time, allowing for repair of atomicity violations.

외접 기어 펌프의 릴리프 그루브 형상 설계에 관한 연구

이동수 경성대학교 대학원 2011 국내석사

외접 기어 펌프는 넓은 범위에서 유량을 발생시키고, 구조가 간단하면 촢은 응답성의 이점으로 인해 여러 분야의 산업에 광범위 하게 사용되고 있다. 유압기기의 고 정밀 제어특성을 요구하고 있으며, 유체학적 기어의 설계는 고 정밀 제어에 기초가 되는 필수적인 기술이다. 일반적으로 외접기어펌프는 인볼류트 기어가 사용된다. 작동원리는 한 쌍의 맞물린 기어들에 바탕을 둔다. 외접기어 펌프는 구동기어와 종동기어의 이가 맞물리는 압축공간에서 유체의 압력이 급격한 변화를 일으킨다. 이로 인해 토출포트에서 흡입포트로 토출유량 손실이 발생하게 되고 압축공간의 압력이 급격히 증가 하여 기구가 파손되거나 펌프의 운전에 방해하게 된다. 이러한 구동기어와 종동기어 사이에서 발생하는 압력의 급격한 변화를 개선 시키기 위해서는 릴리프 그루브의 위치와 형상을 최적 설계가 필요하다. 본 연구에서는 외접 기어 펌프에서의 구동기어와 종동기어 사이에서 발생하는 압력의 급격한 변화를 완화시키기 위한 릴리프 그루브의 형상설계를 하고, 이를 PumpLinx를 이용한 유체동역학 시뮬레이션을 수행하여 형상과 위치에 따른 압력 변화를 비교하여 그 효용성을 검증하였다. Owing to their excellent performance for medium to high delivery pressure, compact construction, and high reliability, the external gear pumps have been widely adopted in various industrial applications. the optimal performance of gear machines is one of the techniques essential to the hydraulically assisted mechatonic system. Generally, pumps with involute external gears are most commonly used. External gear pump mat cause the sudden change when the teeth of drive gear is aligned wit the teeth of slave gear. For this reason , it could cause the less of flowrate between the delivery port and the suction port. In order to improve this problem, we have suggested the optimized design which is optimized for the structure and position of relief groove In this paper, we prsent the optmized design for structure of relief groove to relieve the sudden change of pressure which is happened between drive gear and slave gear. To veriy the usefulness of this research, fluided dynamics simulation has been done with the comparison of pressure variation through by different structures and different positions.

液相 添加法에 의한 PTCR 素子 開發에 관한 硏究

이동수 명지대학교 대학원 1997 국내석사

PTCR소자 제조시 BaTiO₃에 첨가되는 Sb₂2O₃, SiO₂, MnO₂등을 액상으로 첨가하는 액상첨가방법을 개발하였다. 이 액상 첨가법에서 첨가량은 고상합정법보다 작고, 또한 균일한 혼합과 재현성을 얻기 쉽기 때문에 PTCR소자 제조시 적절한다. 본 연구 조건에서 얻어진 최적의 조건인 Sb₂O₃을 0.09mol%, SiO₂ 0.25wt%, MnO₂ 0.02wt%를 액상으로 첨가하여 소자를 제조하였을 경우 상온비저항이 15Ωcm, 비저항비가 2?06으로 가장 양호한 결과를 나타냈다. The PTCR devices of BaTiO₃ doped with Sb₂O₃, SiO₂ and MnO₂ were prepared by Liquid Phase Addition Method(LPAM) where doping sources were used in the forms of Liquid. The amounts of doping in LPMA is smaller than that in solid state mixing method. Also the doping process in LPMA is very suitable for BaTiO₃-based PTCR devices because it is easy to obtain homogeneous mixing and reproductivity. By optimizing the doping condition in BaTiO₃ system, (0.09mol%Sb₂O₃, 0.25wt%SiO₂ and 0.02wt% MnO₂) it was possible to fabricate BaTiO₃-based PTCR devices where the room-temperature resistivity and specific resistivity were 15.Ω cm and 2 x 10^6 respectively

호텔기업의 R&D가 기업 효과성에 미치는 영향

이동수 세종대학교 대학원 2012 국내박사

ABSTRACT The Impact of R&D on Effectiveness in the Hotel Industry Lee, Dong Soo Department of Hotel Management The Graduate School of Tourism Sejong University R&D can be divided into the gradual R&D, which pursues the a little amount of technological development based on the existing knowledge, and the innovative R&D, which tries to discover new knowledge and apply it. Gradual R&D is often easily copied by competitors since it is based on the existing knowledge, but the R&D is hardly copiable since it is often protected by patents or help construct a new market and dominate the area, Because of these benefits R&D provides, many countries or corporations invest a lot in R&D to possess the advantageous position in the new market. Advanced firms already embodies the models for their continuous development by strengthening their core competitiveness with expanding the service sectors or develop more service-like products. R&D in service sectors is already lively in overseas. For example, IBM introduces a new academic discipline called 'Service Science', and both in Germany and Japan, where traditionally manufacturing industry was strong, R&D on service industries is more systematically supported now. In this respect, the hotel business, as a representative form of service industry, provides variety of services in direct connection with customers by human services. Hotel businesses try to find competitiveness not only from accommodation facilities but also by developing customer relationships with differentiated services, and thus have complicated characteristics. However, although those characteristics require more innovative ideas and measuring outcomes from them, few researches have been done on R&D of hotel businesses. Also, there is no clear definition of R&D, and there is few recognition of this problem. This is because the current practices of R&D are more focused on the manufacturing sectors and technologies, and R&D in service industries is also developed and associated with the existing manufacturing sectors. Also, there is few understanding on R&D in hotel businesses as tourist industries. In order to suggest the significance of R&D in hotel businesses. this study tries to find the main variables of R&D, and differentiate the effectiveness of each variable by Analytic Hierarchy Process. By developing indicators to evaluate the suggested R&D and examining the core success factors for the main variables, this study distinguishes the significant factors in R&D, which measures the recognition of R&D among employees working in hotels. By analyzing those core success factors, this study measures the outcomes of R&D and its effectiveness in business. Ultimately it is to throw light on the importance of more systematic R&D in hotel businesses. This study finds following points. First, in order to define R&D in hotel business more systematically, this study derives the evaluative indicators by differentiating the significance of each factor in R&D categorized by AHP. I surveyed 40 people who are related to the R&D in hotel businesses, with strategy, technology, management as the main measuring variables. The relative importance of each variable turned out to be strategy(48), management(37), and technology(20) in order. As detailed indicators, this suggested following indicators of R&D: product development, new service development, hotel information system, pro-environment management, and R&D investment in order of strength. These indicators contribute to establish more appropriate R&D model for hotel businesses since it helps recognize each indicator's different strength. Second, this study conducted factor analysis to measure main success factors in R&D of hotel business. For measuring this, I surveyed 257 employees working at the R&D-related departments in 20 different one or four to five stars hotels. As a result, the main success factors in R&D were human resource development, R&D investment, development of new product & services, IT development, pro-environmental development, and development of interior facilities. As for the main factors for the businesses effectiveness, innovative competitive advantage, and work & organizational efficiency are suggested. The result of testing the first hypothesis concluded that the factors affecting the innovative competitive advantage were development of new products and services, pro-environmental development, human resource development and R&D investment, development in interior facility, and IT development in order of the strength of each factor. As for the work & organizational efficiency, human resource development and R&D investment, IT investment, development of new products and services, pro-environmental development and interior facility in order of effectiveness. Third, this study used business effectiveness in order to measure the outcomes of R&D in hotel businesses, and tries to find if there is difference between the hotel's level or management style. As for the hotel's level, the factors affecting the innovative competitive advantage were interior facilities and pro-environmental development for five-star hotels, and pro-environmental development and human resource development & R&D investment for four-star-hotels. For the factors affecting the work & organizational efficiency, pro-environmental development and human resources development affect five-star hotels more, whereas IT development and new products & services affect the four star hotels more. The differences in hotel's management styles are that, first, the franchised hotels concern pro-environmental development in innovative competitive advantage, while local hotels concern human resources more. As for the work & organizational efficiency, franchised hotels concern IT development while local hotels concern new products and services more.

평행 구조 메커니즘을 이용한 전자기력 방식의 3자유도 힘/토크 센서에 관한 연구

이동수 연세대학교 대학원 2001 국내석사

다자유도의 힘과 토크를 측정할 수 있는 힘 토크 센서는 조립, 그라인딩, 디버링과 같은 기계가공 작업이나, 일반적인 미세 작업 등 힘 되먹임 제어가 필요한 곳에 유용하게 사용되고 있다. 본 논문에서는 기존의 스트레인 게이지 방식과는 다른 새로운 방식의 힘/ 토크 센서를 제안하였다. 전자석 액추에이터나 자기 베어링에서 많이 사용되는 기전력의 측정을 이용하여 1 자유도의 힘과 2자유도의 토크를 측정할 수 있는 3자유도 힘 토크 센서를 제안하였다. 힘 토크 센서는 일반적인 병렬형 매니퓰레이터의 구조를 갖고 이 매니퓰레이터 형태를 갖는 센서는 각링크마다 영구자석과 전자석이 배치되어 있다. 전체 센서 시스템에 힘과 토크가 가해졌을 때 영구자석과 전자석 사이의 상호 인덕턴스가 변하게 되고 이는 각 링크의 전자석에서 기전력을 발생시킨다. 이러한 힘과 기전력 사이의 상관관계를 이용하여 힘을 찾아내고 각 링크에서의 힘을 자코비안을 이용하여 상판에 작용하는 힘으로 변환시키는 것이 센서의 기본 원리이다. 각 링크 내부에 설치된 영구자석과 전자석의 모델링은 스프링과 댐핑 시스템으로 해석하여 모델링하고 수식적으로 힘과 기전력의 상관관계를 찾았으며, 3자유도 시스템에 적용하였다. 정확한 힘을 주고 이 때의 측정결과를 비교한 결과 정적인 힘의 경우 4.1%, 토크의 경우 8.3%의 오차를 나타냈다. 동적인 힘이 가해졌을 경우에는 힘을 추종하나 오차가 정적인 경우에 비해 크게 나타났다. 정적인 힘 센서로서 힘의 경우 3.08%, 토크의 경우 2.17%의 선형 특성을 나타내었고 힘 센서의 분해능은 0.05N, 0.024Nm이고, 측정 범위는 ±2.5N, ±0.15Nm이며 동적인 힘의 경우 대역폭은 55Hz 이다. In this paper, new type force/torque sensor is presented which is different from the conventional F/T sensors using strain-gauge. This F/T sensor of the manipulator type is composed of the general parallel mechanism and is set permanent magnet and solenoid every link in order. When forces are applied to the suggested F/T sensor, the mutual inductance between permanent magnet and solenoid is changed and the emf is generated by this change in solenoids. Basic principal of sensor is as follows. By using mutual relation of force and emf forces is obtained and is converted into forces added to upper plate using Jacobian. The error of force are 4.1% and the error of torques are 8.3% in case of static forces. In case that a dynamic forces is applied, measured forces traced excited forces. The static force sensor has the 3.08% on force and 2.17% on torque linearity. The resolution is 00.5N, 0.024Nm, and the range of measurement is ±2.5N, ±0.15Nm and its bandwidth to the dynamic force is 55Hz.

비전검사용 자동초점장치의 압흔 검출율 향상에 관한 연구

이동수 대구가톨릭대학교 대학원 2018 국내박사

The purpose of this study is to improve the detection ability of the indentation marks and to enhance the accuracy of the acceptance judgment by acquiring higher quality of the image which is taken from a LCD panel to be inspected in vision inspection area using AOI system during COG process. In order to achieve these goals, this study aims to grasp the control characteristics of the auto-focusing unit, to understand the characteristics of major light sources, and to develop the optimal bonding condition between ACF and electrode patterns. In order to understand the control characteristics of the stepping motor, which is a key part of the Z-axis driver, we reverse-engineered an auto-focusing unit to acquire the knowledge about its structure and operational principle. After that, we developed the Z-axis driver bench tester by ourselves. We confirmed that the displacement error can be reduced by micro stepping mode, through the test of the "axial travel distance according to the step angle". In addition, it is verified that the maximum slewing frequency for determining the axial movement speed can be increased by micro stepping mode. In case of exceeding the maximum slewing frequency under this test, we found that there is an area that is not directly proportional to the axial movement speed. Also, we noticed that there is an unstable operating frequency values which are different from the mechanical resonance phenomenon at some operation frequency values, even though in the direct proportion area . This phenomenon is called to instability. If a system which has the ability of avoiding or controlling such instable band and non-linear response frequency range is developed, the non-linear movement of the Z-axis driver can be eliminated and a clearer image can be obtained. We have experimented to understand the illuminance and luminescence characteristics of halogen lamps, xenon lamps, and LED lamps, which are mainly used in AOI system, with a self-manufactured auto-focusing bench tester. As a result, we found that LED lamps use the lowest electric power and they enable to acquire the clearest image among three light sources. Also, it is confirmed that images acquired from LED lamps show higher accuracy of the acceptance judgment among three light sources, because LED lamps recognize the greatest number of the indentation marks in the electrode-patterned area and the least recognize the indentation marks in the non-patterned area. Regarding the characteristics of the light sources in the imaging region, we found that the LED light source shows uniform brightness over the entire imaging region, so that most regions can be utilized. On the contrary, the halogen light source is darker in the center region and the Xenon light source is darker in the edge region. Due to that, the entire use of the imaging region is inevitably limited. For preventing the blurred image from being generated due to the sudden movement of the auto-focusing unit, it is necessary to develop the bonding condition that allows the thickness of the bonded area to be within the focal depth of the objective lens. If we make it, the operation within the focus range of the auto-focusing unit is enabled. Through experiments with the self-made bonding press , it was verified that the combination of temperature, compression time, and compression pressure can make the bonding thickness within the focal depth of the lens without affecting the conduction at all. Under the experimental conditions of this study, we identified that the optimal bonding condition was 160℃ of temperature, 1 bar of pressure, and 15s of compression time. Finally, we tested the detection capability of the indentation marks and the hit rate of the acceptance judgment about images obtained by the camera and the light source with the self-developed computer program which uses C# language and "simpleblobdetector" function provided by Open CV. It was confirmed that the LED light source is the best light source in both the line scan camera and the local area camera.    Therefore, the data and results obtained from this study will provide useful information for obtaining clearer image data from AOI system, and they will contribute to increase the accuracy of the acceptance judgment and to enhance the inspection ability. Based on the results of this study, further investigations are needed to check the possibility of improving the detection ability and the accuracy of acceptance judgment by changing several parameters in the our program.