• 산업경영시스템학회지
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• 제24권62호
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• pp.1-10
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• 2001

The electronics industry is fast growing segment of manufacturing and service industries. It is important that the manufacturer develops a product with adequate life cycle, high quality, and low failure rate in the specified time period. Environmental Stress Screening(ESS) and burn-in are widely used in the electronic industry to assist in the elimination of early failure. In this research, we construct optimal cost model of combined ESS and burn-in under various warranty policy and establish optimal testing times for given environments. Also we conduct sensitivity analysis on various parameter. The results of this study are summarized as follows. Comparing free warranty policy to rebate warranty policy, optimal ESS time is longer under free warranty policy, and optimal burn-in time is longer under rebate warranty policy. Free warranty policy higher than rebate warranty policy in total cost.

• 동아시아경상학회지
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• 제8권2호
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• pp.43-56
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• 2020

Purpose - This study is regarding customer service environment in casino marketing under a study on the factors affecting casino tourist satisfaction based on casino tourists' various needs. Research design and methodology - The study of casino tourism policy factors is proceeded by interviewing tourists of Macao casino. A total of 220 copies were distributed and 193 copies were collected, but 13 copies were not conceded due to insincere responses, and a total of 180 cases were analyzed for this study. Based on the analysis results, the casino tourism policy factors were derived through satisfaction level of casino tourist service as follows. Results - Firstly, the casino tourist satisfaction is a positive influence on casino visits, so efforts should be made to enhance tourist satisfaction when establishing cultural experience programs and casino marketing strategies. Casino culture for tourist should be matured to develop casino tour. In order to increase the satisfaction level of revisiting casino resorts, various cultural products such as clean environment should be developed to enhance the satisfaction level of casino visitors in the future. Secondly, a positive impact of cultural, experiential visits and psychological motivations affect to tourists' psychological stability through cultural experiences as well as casino games. Thirdly, casino tourist satisfaction has been shown to provide a positive impact on behavior intention. Conclusions - Based on the results of this research, the marketing of casino tour is to identify tourists' needs and increase satisfaction.

• International Journal of Internet, Broadcasting and Communication
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• 제9권2호
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• pp.27-36
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• 2017

The world's unique geographical, multilingual, multiethnic, multiracial and multi religious Himalayan country Nepal has more than 100 years history on telephony service and it has been formulating appropriate policy and regulation for the adoption of new technology, introducing the competitive market environment for the overall development of Information and Communication Technology (ICT) infrastructures and application of ICT service and tools for socio-economic transformation. The Nepalese market seems to be continuously growing and having huge demand of mobile telephony and internet subscriptions trend. The ICT infrastructure development in difficult geographical area is quite challenging and thus operators are focusing mobile telephony and mobile internet services. Nepal has been doing its best effort on formulating policy and regulation, adoption key strategies for ICT sector development and at the same time joining hands with international and regional bodies such as ITU, SAARC etc for ICT sector development. Due to geographical diversity, policy and regulatory barriers in some extent, power supply constraints and low affordability from customers on ICT tools and services, Nepal has been facing challenges on ICT infrastructure development. However, the national statistics on ICT, Networked Readiness Index and ICT Development Index show that Nepal has done quite good progress and is keeping its pace on ICT development despite the these challenges. Moreover, there seems to be quite uncovered market segments on internet service and big opportunity on ICT sector development in Nepal in the days to come.

• 유통과학연구
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• 제14권1호
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• pp.17-28
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• 2016

Purpose - Given the increasing interest in the Eurasian Initiative, government-wide studies for the construction of the Silk Road Express are currently being conducted. However, the Korean Government has no experience in operating international freight railroads and has not encountered problems in train service plans, international conventions, and customs clearance, which will arise when TKR is connected to TSR, TCR, and TMGR. Research design, data and methodology - Given these conditions, the cases of direct services in international freight railroads between China and Europe are investigated to identify the possible problems in the connection between TKR and continental railroads. This study also identifies the plans for activating Eurasian railroad logistics. Results - For the service of international freight trains, Korea needs to join international conventions, such as OJSD, as a regular member. Furthermore, any relevant international conference after the conclusion of such an agreement is needed for the agreement on train service schedules, fees, and procedures for passing border stations. Conclusions - Customs clearance and relevant documents must be standardized to address the differences in clearance systems between nations.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1999년도 Proceedings of International Symposium on Remote Sensing
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• pp.198-203
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• 1999

Korea Multi-Purpose Satellite-1 (KOMPSAT-1) is developed by the Korea Aerospace Research Institute (KARI) with the aid of TRW and will be launched on the Nov. 24, 1999 at the Vandenberg Air Base in CA, U.S, Now, the satellite application group in KARI is preparing for the service with the KOMPSAT-1 satellite data. For the purpose of supplying good service to the users, data application planning has to be established before launching satellite. To use satellite data effectively, KARI makes a plan for data policy, data price, mission planning, and commercializing strategy. This study was carried out with the purpose of effective use of satellite data. For this purpose, KARI makes a user group first. There are 58 user groups to use KOMPSAT-1 data for public welfare and research sectors. These user groups include government, public corporations, institutes, and universities. KARI will offer the service to users through online using Internet. Secondly, KARI makes a policy for the priority of KOMPSAT-1 missions. These are classified by the mission priority, payloads, and operational states etc. Thirdly, KARI will make data policy and data price of KOMPSAT- 1 based on the basic master 1)tan. Especially, data price will be determined at trte KOMPSAT-1 committee including Ministry of Science and Technology (MOST). KARI is also trying to commercialize the data with the domestic and foreign companies to expand the use of KOMPSAT-1 data in the industries sector. Afterward in this study, KARI will continue the improvement for the effective distribution of KOMPSAT-1 data for all users.

• 보건행정학회지
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• 제20권1호
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• pp.137-154
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• 2010

This study empirically analyzed the effects of the Top Management Team (TMT) on organizational performance. We verified whether the age heterogeneity, job heterogeneity (core career, core function and major), and process (communication and integration) of the TMT affect organizational performance (management performance and healthcare service quality evaluation level). We collected data about 473 members of the 2006 TMT in 81 medical institutions. We also utilized statistics of organizational performance from the Ministry for Health, Welfare and Family Affairs and the Korean Institute of Hospital Management. Results of the study showed that the age heterogeneity of TMT exerted a negative effect on the healthcare service quality evaluation level, while the process exerted a positive effect. However, the age heterogeneity, job heterogeneity, and process had no influence on management performance. We discussed the implications of such outcome of the investigation in comparison with the former studies on TMT and organizational performance, and presented its restrictions and future plans.

• 가정과삶의질연구
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• 제23권6호
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• pp.95-104
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• 2005

This study surveyed the perception and demand for the child care policy and child care service of working mothers with children under age 6. The subjects were 266 working mothers in Seoul and Kyoung-Gi Province. Data were collected with the questionnaire method and analyzed by spss-win program, including median, mode, mean, standard deviation, and t-test. The result of this study can be summarized as follows. (1) The working mothers considered both parents have the responsibility on child care and strongly demanded the national support on child care. (2) The working mothers prefered own mother and relatives to child care center as a carer of infants and toddlers, but prefered child care center for children age 3-5. (3) The working mothers demanded the increase of finantial support for family and child care center. (4) The working mothers focused on 'the security and care Program' and focused next on 'diet and health care program' in child care service. (5) The working mothers did not nearly know about the accreditation system of child care centers. This results suggest that the national and social support for child care service is an essential part in promoting children's and the working mothers' welfare.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권3호
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• pp.1315-1329
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• 2018

Ciphertext-policy attribute-based encryption (CP-ABE) associates ciphertext with access policies. Only when the user's attributes satisfy the ciphertext's policy, they can be capable to decrypt the ciphertext. Expressivity and security are the two directions for the research of CP-ABE. Most of the existing schemes only consider monotonic access structures are selectively secure, resulting in lower expressivity and lower security. Therefore, fully secure CP-ABE schemes with non-monotonic access structure are desired. In the existing fully secure non-monotonic access structure CP-ABE schemes, the attributes that are set is bounded and a one-use constraint is required by these projects on attributes, and efficiency will be lost. In this paper, to overcome the flaw referred to above, we propose a new fully secure non-monotonic access structure CP-ABE. Our proposition enforces no constraints on the scale of the attributes that are set and permits attributes' unrestricted utilization. Furthermore, the scheme's public parameters are composed of a constant number of group elements. We further compare the performance of our scheme with former non-monotonic access structure ABE schemes. It is shown that our scheme has relatively lower computation cost and stronger security.

• 보건행정학회지
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• 제20권3호
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• pp.21-35
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• 2010

This study examined the changes in the service mix of Korean hospitals in 6 metropolitan cities between 2003 and 2005, and assessed whether the sample hospitals exhibit consistent trend or chance variation in multiple years. Three measures of hospital service mix, focusing on the specialization of services, were applied: information theory index, internal Herfindahl index, and number of distinct diagnosis-related groups (DRGs) treated. National Health Insurance claims were used to calculate the indexes. Specialization indexes were calculated in each year, and then examined to identify the pattern over time. Kappa analysis was applied to assess the agreements of specialization score between two years after hospitals were categorized into 4 groups with quartiles. Kappa score showed that the service mix of hospitals were changed during the study years. Specialization scores were increased given the market structure for three years. Hospitals which showed higher or lower specialization scores than the average of the scores consistently classified into the same group. Specialization indexes showed relatively consistent pattern over 3 years, and such consistencies were evident for hospitals regardless of the specialization status. Policy makers can identify the degree of specialization with the indexes, and it could provide a picture of how hospital services were mixed and changed over time.

• 디지털융복합연구
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• 제10권4호
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• pp.11-22
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• 2012

직장이 아닌 곳에서 근무하는 스마트워크는 조직과 조직 구성원 모두에게 도움이 되는 미래지향적인 근무 방식으로 최근 화두가 되고 있다. 본 연구는 콜센터를 운영하고 있는 기업을 대상으로 직장근무자와 스마트워크 근무자간의 서비스풍토, 직무만족, 조직몰입, 서비스수행능력 등 조직 관련 주요 변수에 대한 인식 차이를 조사하였다. 분석 결과, 스마트워크 근무자들이 직장근무자들에 비해 서비스풍토에 대한 인식이나 직무만족이나 조직몰입, 서비스수행능력 등 모든 측면에서 긍정적인 것으로 나타났다. 이와 같은 결과를 바탕으로 스마트워크의 활성화를 위한 시사점과 정책 방안을 제시하였다.