• International Journal of Quality Innovation
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• 제8권1호
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• pp.137-153
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• 2007

Failure mode and effects analysis (FMEA) is a preventive technique in reliability management field. The successful implementation of FMEA technique can avoid or reduce the probability of system failure and achieve good product quality. The FMEA technique had applied in vest scopes which include aerospace, automatic, electronic, mechanic and service industry. The marking process is one of the back ends testing process that is the final process in semiconductor process. The marking process failure can cause bad final product quality and return although is not a primary process. So, how to improve the quality of marking process is one of important production job for semiconductor testing factory. This research firstly implements FMEA technique in laser marking process improvement on semiconductor testing factory and finds out which subsystem has priority failure risk. Secondly, a CCD position solution for priority failure risk subsystem is provided and evaluated. According analysis result, FMEA and CCD position implementation solution for laser marking process improvement can increase yield rate and reduce production cost. Implementation method of this research can provide semiconductor testing factory for reference in laser marking process improvement.

• Safety and Health at Work
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• 제1권1호
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• pp.1-10
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• 2010

The Finnish risk assessment practice is based on the Occupational Safety and Health (OSH) Act aiming to improve working conditions in order maintain the employees' work ability, and to prevent occupational accidents and diseases. In practice there are hundreds of risk assessment methods in use. A simple method is used in small and medium sized enterprises and more complex risk evaluation methods in larger work places. Does the risk management function in the work places in Finland? According to our experience something more is needed. That is, understanding of common and company related benefits of risk management. The wider conclusion is that commitment for risk assessment in Finland is high enough. However, in those enterprises where OSH management was at an acceptable level or above it, there were also more varied and more successfully accomplished actions to remove or reduce the risks than in enterprises, where OSH management was in lower level. In risk assessment it is important to process active technical prevention and exact communication, increase work place attraction and increase job satisfaction and motivation. Investments in OSH are also good business. Low absenteeism due to illness or accidents increases directly the production results by improved quality and quantity of the product. In general Finnish studies have consistently shown that the return of an invested euro is three to seven-old. In national level, according to our calculations the savings could be even 20% of our gross national product.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.774-779
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• 2005

Client requirements is a concept with increasing interest in relation to several outcomes of companies, and in particular, in the event of apartment project that takes large share in the domestic construction industry, diverse angle of survey is performed to discover the client requirements and reflect them to the project to improve the quality. For this purpose, it is required to learn the client requirements and apply it in the apartment project, and the QFD (Quality Function Deployment) linked ROQ (Return On Quality) is a technique used in the manufacturing that surveys the client requirements to improve the customer satisfaction, and apply it to the quality improvement program to improve the profitability in this process. In this study, through the application of the ROQ process, the plan to improve the apartment quality management is presented. For this purpose, the consumer interview survey, FGI (focus group interview) survey and the client requirements are analyzed, and thereafter, through the interview with the specialist, the quality improvement program that enables the application to the product development of new apartment product is established. Through this process, the new apartment quality management improvement plan is presented.

• 유통과학연구
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• 제21권4호
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• pp.103-111
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• 2023

Purpose: The purpose of this study was to analyze Korean sports consumers' intention to stay using online sports products and services through online sports distribution platforms or return to using sports facilities and services in person. Research design, data and methodology: This study set up two models measuring consumers' recognition, attitude, and purchase intention toward online sports products and services based on involvement theory. An online survey was conducted and a total of 2,263 consumers participated in this study. Male participants were 1,256(55.5%) and female participants were 1,007(44.5%). Descriptive statistics were performed, and a path analysis was utilized to analyze the proposed model using SPSS 26 and SAS. Results: The results revealed two proposed models used in this study supported that consumers' online sports product and service recognition leads to a positive attitude toward online sports products and services. Moreover, consumers' positive online sports product and service attitudes were shown to lead to positive intentions to purchase online sports products and services. Conclusions: The findings revealed the recognition of consumers' online sports products and services led to positive attitudes and behavioral intentions. Implications were provided by suggesting the sports industry stick to developing online sports products and services until the endemic of COVID-19 is declared.

• 유통과학연구
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• 제15권8호
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• pp.75-86
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• 2017

Purpose - The online-to-offline (O2O) business model has brought considerable changes to the traditional Chinese business model. The main difference between O2O and pure online consumption is that O2O offers a richer experience and word-of-mouth. it is easier to trigger online word-of-mouth. However, few scholars have been concerned about the impact of experiential value on customer satisfaction and online word-of-mouth (e-WOM) in the study of O2O. This study takes the O2O business model in China's catering industry as its research object and uses structural equation modelling to analyze the impact of online and offline experiential values on customer satisfaction and e-WOM. Research design, data, and methodology - According to previous researches, consumer experiential value is mainly divided into return on investment (economy and efficiency), service excellence, playfulness and aesthetics. According to the characteristics of O2O in China's catering industry, this study divides the online experience value into efficiency and economy (return on investment). The offline part is divided into return on investment (economy and efficiency), service excellence, playfulness and aesthetics. Using a web-based survey, we collected 303 valid samples. Structural equation modelling was used to create the research model. Results - The results show that efficiency (online) and service excellence (offline) have a significant effect on customer satisfaction. Economics (online) and playfulness (offline) have a positive impact on customers' e-WOM. In addition, the higher the customer satisfaction, the greater the positive impact on the spread by word of mouth. However, aesthetic(offline) and return on investment(offline) have no significant impact to customer satisfaction and e-WOM. Conclusions - The study findings show that the key to boost customer satisfaction in the catering industry is to improve product quality and service. Although traditional competitive strategies such as online discount have been questioned by many scholars about their decreasing effectiveness, they are indispensable means to attract online traffic and trigger e-WOM. The traditional enterprises can reconstruct traditional business processes through the O2O model to effectively improve customer satisfaction and word of mouth by improving the experiential value of economy and efficiency. Additionally, it can be used as the natural advantages of online communication to induce customers to engage in word of mouth and attract more potential customers.

• 디지털융복합연구
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• 제11권5호
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• pp.119-133
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• 2013

본 연구의 목적은 독점적 지위로 운영되는 발전회사의 환경효율성 분석을 통하여 미래의 녹색경영, 지속경영에 대한 기관 효율성 향상에 기여하고자 하는 것이다. DEA 분석이 가진 내재적인 부족함을 보완하기 위해 C 발전회사 산하 6개의 기관을 직접 방문하여 담당 전문가로부터 DMU의 환경효율성을 위한 인터뷰 자료도 활용하였다. 투입요소로는 경영효율성에서는 비용과 종업원 수를 환경효율성으로는, CO2, NOx, 용수 사용량이 사용되었다. 산출요소로는 연간 총발전량, 판매수익이 사용되었다. 분석에는 규모수익불변(CRS, Constant Return to scale)투입지향의 DEA모형과 VRS(Various Return to Scale)모형을 이용하였다. CRS 분석에 의하면 0.923, BCC 분석으로는 0.969로 나타났으며 7개의 DMU가 효율적인 것으로 나타났다. 산출요소별 비효율적인 투입요소에서는 NOx가 CO2 보다 낮았다. 이는 전력발전에 있어 NOx는 물론 CO2에 관한 효율성이 개선되어야 한다는 것을 보여주고 있다. 환경비효율성을 줄이기 위해서는 결국 신재생에너지와 연료 전지 등 대체에너지원이 지속적으로 개발되어져야 한다.

• Korean Chemical Engineering Research
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• 제52권3호
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• pp.347-354
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• 2014

본 연구에서는 연소 배가스 중에 포함된 이산화탄소의 탄산화 반응을 통한 고부가화합물 제조기술의 경제성평가를 수행하고 화합물 생산 계획에 따른 이익 및 내부수익률(Internal Rate of Return, IRR)을 분석하였다. 본 연구에서 고려된 기술을 이용하면 발전소에서 발생되는 연소배가스 중의 이산화탄소와 전기분해를 통해 발생되는 가성소다와의 탄산화 반응을 통해 고부가화합물(중탄산나트륨, $NaHCO_3$)의 생산 및 이산화탄소의 저감이 동시에 가능하다. 또한 전기분해에서 생산되는 염소 및 수소 가스는 다시 차아염소산나트륨(NaOCl) 및 고순도 염산의 제조에 적용된다. 기술의 경제성 평가를 위한 방법으로는 순현재가치법(Net Present Value method, NPV) 및 내부수익률(Internal Rate of Return, IRR)을 활용하여 일일 100톤의 이산화탄소를 처리할 수 있는 공정을 대상으로 20년간 상업운전을 가정하였다. 상기 가정하에서 20년간의 내부수익률은 약 67.2%, 20년간의 운전기간을 통한 총 이익은 순현가 기준으로 약 346,922 백만원으로 산출되었다. 그리고 2015년부터 시행예정인 탄소배출권 거래가 활성됨에 따른 ETS 수익을 고려할 경우 총이익은 약 60억원 향상되는 것으로 분석이 되었다. 상기 분석을 살펴보면 이산화탄소의 탄산화 반응을 통한 고부가화합물 제조기술은 온실가스 저감효과를 가져올 뿐만 아니라 경제성이 뛰어난 것으로 생각된다.

• 한국CDE학회논문집
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• 제18권4호
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• pp.299-307
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• 2013

Introduction of PLM in domestic shipyards is being retarded as ship PLM has yet to firm up return of investment and process integration. To implement a ship PLM system, it is required to share ship CAD model data in various design and manufacturing environments. Lightweight CAD models provide a promising solution for sharing CAD models in the product life cycle, which can expedite implementation of ship PLM in domestic shipyards in the near future. Compared to proprietary CAD models, it is easy for lightweight CAD models to be interfaced with various application systems and be connected to manufacturing information. In this paper, the reason why lightweight CAD models are necessary to implement a ship PLM system is addressed and current implementation results are introduced.

• Journal of electromagnetic engineering and science
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• 제5권2호
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• pp.97-103
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• 2005

This paper describes the measured results of sonobuoy transmitting antenna system for anti-submarine warfare (ASW). Since radiation pattern and power density depend on impedance matching between transmitting RF part and antenna with termination resistance, design of matching circuit is very important for sonobuoy system performance. Matching circuit is designed by Smith chart using control of L and C. In standing wave ratio(SWR) measurement using Network Analyzer, SWR of antenna with matching circuit observed 1.5 below at the assigned VHF band. It shows very excellent performance comparison with conversional product that is used for the same object. The measured vertical and horizontal radiation patterns are also shown the satisfaction of military specifications. A drop out of sonobuoy system on the sea is happened when angle of elevation direction is over 10 degrees, and it is conformed that it takes less than I second return to original signal level. The required electric power density is $83\;mW/m^2$ in the military specification, and measured electric power density is observed over average $110\;mW/m^2$ at all frequency bands.

• Communications for Statistical Applications and Methods
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• 제14권2호
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• pp.413-429
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• 2007

Equity-linked securities (ELS) provide their customers with the return linked to the underlying equity (or equities). Equity-linked products in Korea have recently gained popularity due to relatively low interest rates. This paper discusses an equity-linked security whose principal is not guaranteed. The payoff of the ELS depends on the returns of two underlying assets. This paper presents numerical prices of the proposed product by using Monte-Carlo simulation method. It assumes that the log-returns of two stocks follow either Brownian motion or variance gamma process. Finally, the comparison of the two approaches is discussed.