• 대한기계학회논문집A
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• 제25권9호
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• pp.1475-1482
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• 2001

Nowadays reduction of gear noise in power transmission is very important, because the noise regulation is severe and demand of customer on noise is increased. To reduce gear noise, it is necessary to understand the noise characteristics of helical gear. In this work, we designed test rig for the study of gear noise and installed in semi-anechoic chamber. By using this rig, sound pressure level is measured under varying rotational speed and torque. The frequency characteristics of helical gear noise on the effect of lead errors and torque are discussed.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 G
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• pp.2495-2497
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• 1998

Fiber optic facilities are increasingly being deployed in loop applications for both busines and residential areas. These facilities support a variety of communications services that include high speed data and video using leading technologies such as Synchronous Optical Network (SONET), Wavelength Division Multiplexing(WDM). This proliferation of fiber optic facilities combined with the increasing pressure on network operators to reduce costs are fostering increased automation to reduce labor costs associated with providing and maintaining communications services. Effective fiber management and accurate records can improve the reliability and integrity of the future telecommunications networks and the quality of customer services. This paper describes the trend forward and the need for the deployment of Fiber Administration System (FAS) into the operations enviroment of a typical network provider.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.145-148
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• 2004

Until now, product mostly has revealed physical quantities created by the standpoint of engineers. Consumers, however, perceive and evaluate products on the non-physical characteristics, such as feelings, emotions, and experiences in different social and cultural situations. Especially, for the household appliances such as a refrigerator, the sound is heavily related to the satisfaction of a customer who is a real user of the product and is very important factor to decide purchasing as well as visual design. Therefore, in this research, not only the simple sound pressure level but also the consumer's sense of hearing evaluate the noise from the refrigerator. And also, in order to improve the quality of sound through the design change, the consumer's evaluation is analyzed and related to the engineering quantities.

• International Journal of Reliability and Applications
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• 제4권4호
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• pp.157-170
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• 2003

In this paper we apply statistical reliability tools to manage and seek improvements in the strengths of medium density fiberboard (MDF). As a part of the MDF manufacturing process, the product undergoes destructive testing at various intervals to determine compliance with customer′s specifications. Workers perform these tests over sampled cross sections of the MDF panel to measure the internal bond (IB) in pounds per square inches until failure. We explore both graphically and statistically this "pressure-to-failure" of MDF. Also, we briefly comment on reducing sources of variability in the IB of MDF.

• Asia pacific journal of information systems
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• 제30권1호
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• pp.72-93
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• 2020

With the proliferation of smart devices, mobile banking has become increasingly important. Customers can manage their banking needs without desktop computers or a face-to-face meeting with bank tellers. However, contrary to expectation of wide-spread use of mobile banking, several factors restrict its adoption. The purpose of this study is to explore what factors affect positively or negatively the adoption of mobile banking from economic (operational competence, convenience, mental accounting), psychological (hope, self-efficacy, optimism, resiliency) and social perspectives (normative social pressure, embarrassment avoidance). This paper suggests that three enablers would consequently affect a customer's perceived utilitarian and hedonic value in mobile banking, followed by trust and intention to use. In testing the hypothesized research model, survey and analysis of a structural equation model using Amos are conducted. The findings emphasize that banks need to focus on perceived utilitarian and hedonic values when considering economic, psychological and social enablers most salient to customers in order to promote greater adoption of mobile banking services.

• 한국방재학회 논문집
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• 제8권6호
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• pp.31-36
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• 2008

배수시설은 합리적인 계획으로 배치하여 시간적으로 변동하는 수요량에 대하여 적정한 수질의 물을 적정한 압력으로 연속적이면서 안정적으로 공급해야 한다. 또한 상수관 파괴 같은 사고가 발생했을 경우에도 용수 수요자에 대한 영향을 최소화 할 수 있는 안정성이 높은 시설을 목표로 구축되어야 한다. 본 연구에서는 상수관 파괴에 의한 피해를 합리적으로 경감시킬 수 있는 방법을 제시하였다. 본 연구를 위해 기존의 상수관 파괴에 의한 피해영역 산정기법과 신뢰도 산정기법을 통해서 상수관망을 분석하고 상수관 파괴에 의한 피해 경감기법을 도출하였다. 분석결과 minimum cutset에 속하는 상수관의 내구성을 중요우선순위에 따라 향상시킴으로써 상수관 파괴에 의한 피해를 효과적으로 경감시킬 수 있었으며 제안된 방법을 Cherry Hill 상수관망에 적용하여 적용성을 검증하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제12권2호
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• pp.57-72
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• 2003

The purpose of this paper is to propose the modeling of multiagent based SCM and implement the prototype in the Internet environment. SCM process follows the supply chain operations reference (SCOR) model which has been suggested by Supply Chain Counsil. SCOR model has been positioned to become the industry standard for describing and improving operational process in SCM. Five basic processes, plan, source, matte, deliver and return are defined in the SCOR model, through which a company establishes its supply chain competitive objectives. A supply chain is a world wide network of suppliers, factories, warehouses, distribution centers and retailers through which raw materials are acquired, transformed or manufactured and delivered to customers by autonomous or semiautonomous process. With the pressure from the higher standard of customer compliance, a frequent model change, product complexity and globalization, the combination of supply chain process with an advanced infrastructure in terms of multiagent systems have been highly required. Since SCM is fundamentally concerned with coherence among multiple decision makers, a multiagent framework based on explicit communication between constituent agents such as suppliers, manufacturers, and distributors is a natural choice. Multiagent framework is defined to perform different activities within a supply chain. Dynamic and changing functions of supply chain can be dealt with multi-agent by cooperating with other agents. In the areas of inventory management, remote diagnostics, communications with field workers, order fulfillment including tracking and monitoring, stock visibility, real-time shop floor data collection, asset tracking and warehousing, customer-centric supply chain can be applied and implemented utilizing multiagent. In this paper, for the order processing event between the buyer and seller relationship, multiagent were defined corresponding to the SCOR process. A prototype system was developed and implemented on the actual TCP/IP environment for the purchase order processing event. The implementation result assures that multiagent based SCM enhances the speed, visibility, proactiveness and responsiveness of activities in the supply chain.

• 한국정보시스템학회지:정보시스템연구
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• 제27권2호
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• pp.157-173
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• 2018

Purpose Product characteristics and price value in website have strongly effects on customer satisfaction. Especially, in the online shopping site, the scarcity limits the customer's opportunity to purchase the product. Thus scarcity has been proposed as a important factor that makes the customer highly aware of the merchantability of the product. The scarcity in the web store is used as an important variable to make purchasing decisions of users easier by psychological pressure. In the case of scarce products with price discounts in online commerce, advertising formats that highlight scarcity value in the web commerce market are very effective in enhancing purchase intentions of consumers. Unlike offline stores, the importance of scarcity becomes more important when reflecting the characteristics of online commerce. Therefore, this study intends to confirm the influence of the degree of price discounts and scarcity information presented by Web sites on consumer purchase behavior in Web purchase behavior. Design/methodology/approach This study conducted a web-based experimental study on price sensitivity and price discount. Therefore, we created experimental web-sites that offer two stimuli according to the discount rate. The 200 respondents were randomly assigned. The stimuli were fictitious based on tourism products. The first stimulus presented the price discount(15% discount) with basic explanation about the package of the tourist package. The stimuli assigned to the second group were used for groups with high price discount intensity(65% discount). In this way, the two stimuli clearly distinguished the level of price discount intensity. This paper conducted t-test analysis and structural equation to analyze the experiemental results after confirming the reliability and validity. Findings The results of this study are as follows. The difference in price discount intensity (15% vs 65%) with scarcity showed the mean difference among all the variables. Therefore, this study concluded that there is a significant difference between the price discount of 15% and 65% for the acquisition value and transaction value of users. In particular, consumers' purchase intention is greater and product recommendation intensity is stronger when the price discount is 65%. As a result, the high degree of the price discount intensity with scarcity exerts a greater influence on consumers' purchase intentions. Product scarcity also have a significant impact on perceived value of users. Therefore, purchase intention of customers increases when perceived value increases their profit and pleasure feeling.

• 한국산업정보학회논문지
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• 제5권3호
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• pp.94-110
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• 2000

지금까지 대부분의 정보시스템 도입과 활용에 따른 선행 연구들이 정보시스템의 특성 혹은 기타 이유 등으로 조직에서 시스템을 도입함에도 불구하고 개인적인 관점에서의 성공요인을 분석하던 것을 지양하고 조직의 관점에서 정보통신기술 특히 인터넷과 관련된 기술의 도입에 영향을 미치는 제반 요인에 대한 분석을 시도하고자 한다. 특히 날로 확산되어 가는 인터넷 관련 기술과 이를 활용한 전자상거래의 활성화에 따른 온라인 결재시스템의 변화는 은행으로 하여금 필연적으로 이 같은 혁신기술을 도입하여 활용하도록 만드는 역할을 수행하고 있다. 이와 함께 대부분의 선행 연구들이 정보시스템의 도입 여부에 중점을 두고 있는데 반해 본 연구는 새로운 혁신 기술의 도입과 해당 기술의 조직 내에서의 확산(혹은 전파)과정에 대한 분석을 추가함으로써 보다 실질적인 정보통신기술의 도입 및 확산에 따른 분석이 가능하도록 시도하였다. 은행에 있어 전자상거래 도입 및 확산과 관련된 요인으로는 선행 연구를 바탕으로 조사한 결과 조직 내부요인, 금융산업 내부요인, 비 금융산업의 환경요인, 고객의 전자상거래에 대한 인식요인, 정부의 규제 및 지원요인과 웹의 기능적인 요인으로 크게 대별할 수 있다. 끝으로 본 연구의 통계적인 분석을 위한 종속변수로는 은행에 있어 전자상거래의 도입 및 확산 과정에 대한 단계로 정의하였으나 은행에서 인터넷 기술을 활용하여 온라인 상으로 보다 다양한 금융서비스를 제공하는 은행이 전자상거래의 확산이 보다 심화되었다는 전제아래 인터넷을 활용하여 제공 가능한 금융서비스를 다섯 가지의 단계로 구분한 뒤, 이를 중심의 은행의 전자상거래 도입 및 확산 과정에 대한 단계별 분석을 하고자 한다.

• 한국콘텐츠학회논문지
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• 제14권7호
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• pp.407-426
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• 2014

본 연구는 인터넷 소비자의 구매지연행동에 영향을 미치는 요인을 규명하고자 하였고, 인터넷 소비자의 상황적 요인과 지각된 불확실성이 구매지연행동에 미치는 영향을 분석하였다. 서울 수도권 지역의 인터넷 소비자를 대상으로 설문조사를 하여 394부의 자료를 분석에 사용하였다. 본 연구의 결과를 요약하면 첫째, 전반적 구매지연에는 부정적 경험과 후회회피가 정(+)의 영향요인으로 나타났다. 결제단계 지연에는 시간압박성, 구매변경 가능성, 부정적 경험 및 후회회피가, 장바구니 포기에는 시간압박성과 부정적 경험, 후회회피가 정(+)의 영향을 미치고 있었다. 둘째, 전반적인 구매지연과 결제단계 지연에는 정보, 선호 및 심리불확실성이, 장바구니 포기에는 정보 및 심리 불확실성이 정(+)의 영향을 미치고 있었다. 본 연구는 인터넷 소비자의 구매지연행동의 상황적 요인과 지각된 불확실성을 분석함으로써 인터넷 분야 연구의 이론 확장 및 다양화에 기여하였고, 인터넷 쇼핑몰의 고객관리와 마케팅 전략에 유용한 자료를 제공한 의의가 있다.