• 한국정보처리학회논문지
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• 제7권9호
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• pp.2783-2796
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• 2000

전자상거래 시스템에서 패키지 상품의 구매가 이루어지기 위해서는 패키지 상품을 구성하는 상품들이 구비되어 있어야 할뿐만 아니라 충분한 수량이 확보되어 있어야만 구매자의 요구가 있을 때 이를 실시간으로 처리할 수 있게 된다. 그리고 다수의 사용자가 동시에 가상쇼핑몰에 접근하여 패키지 상품을 구매하고자 할 때에도 상품에 대한 동시성 제어가 효율적으로 이루어져야만 한다. 본 논문에서는 고정형 패키지와 맞춤형 패키지상품 구매 시 상품선택과 구매가 효율적으로 이루어지도록 하기 위해서 모든 상품에 대한 실 수량과 판매가능 수량정보를 유지토록 함으로써 구매자의 요구를 실시간으로 처리할 수 있도록 하였고, 트랜잭션의 처리율이 향상되도록 하였다. 그리고 트랜잭션의 동시성 제어를 효율적으로 하기 위해서 잠금을 기반으로 한 동시성제어 알고리즘을 제시하였다.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1995년도 춘계공동학술대회논문집; 전남대학교; 28-29 Apr. 1995
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• pp.534-544
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• 1995

Many electronic products employ menu-driven interfaces for user-system dialogue. Unlike the software user interfaces, a small single-line display, such as a Liquid Crystal Display, is typically used to present menu items. Since the display can show only a single menu item at a time, more serious navigation problems are expected with single-line display menus(SDM). This study attempts to provide a set of unique guidelines for the design of the SDM based on empirical results. A human factors experiment was conducted to examine the effects of four design variables: menu structure, user experience, navigation aid, and number of targets. The usability of design alternatives was measured quantitatively in four different aspects, which were speed, accuracy, inefficiency of navigation, and subjective user preference. The analysis of variance was used to test the statistical effects of the design variables and their interaction effects. A set of design guidelines was drawn from the results which can be applied to the design of human-system interfaces of a wide variety of electronic consumer products using such displays. Since more generalized guidelines could be provided by constructing prediction models based on the empirical data, some powerful performance models are also required for the SDM. As a preliminary study, a survey was done on the performance models for ordinary computer menus.

• 유통과학연구
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• 제18권6호
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• pp.37-46
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• 2020

Purpose: This research aims to explain the influence of social media influencer (SMI), electronic word of mouth (EWOM), and perceived quality (PQ) on purchase intention (PI) of beauty products on YouTube. Youtube as the number 1 social media in Indonesia, has an important role as a promotional strategy media for beauty products. Research design, data and methodology: This study used the online survey to 210 female respondents aged 17-30 years who became a subscriber of an Indonesian beauty influencer. Simple regression and multiple regressions were performed to analyze the independent variables towards the dependent variable. Results: The results show that social media influencer, electronic word of mouth, and perceived quality simultaneously have a significant influence on purchase intention. Nevertheless, only two variables individually have a significant influence on purchase intention, which is social media influencer and perceived quality. Conclusions: Perceived quality and social media influencer could be the best strategies to increase consumers when promoting through the influencer's Youtube channel by utilizing a subscriber. While e-WOM can be influential on other social media platforms rather than on the Youtube platform. Therefore, suggested that digital marketer must use multiple social media platforms to increase consumers' purchase intention.

• Design & Manufacturing
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• 제14권1호
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• pp.15-21
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• 2020

Smart systems in different application areas such as automotive, medical and consumer electronics require a novel manufacturing method of electronic, optical and mechanical functions into products. Traditional methods including mechanical assembly, bonding of plastic and electronic circuit cause the problems in large size of products and complicated manufacturing processes. In this study, thermoforming and film insert molding were applied to fabricate a dome shaped plastic part embedded with electronic circuits. The deformation of patterns printed on PET film was predicted by thermoforming simulation using T-SIM, and the results were compared with those by experiment. In order to decrease spring-back after thermoforming, the Taguchi method of design of experiment was used. Through ANOVA analysis, it was found that mold temperature was the most dominant parameter for spring-back. By using flow analysis, gate design was performed to decrease injection pressure. During film insert molding, the wash-out of ink printed on film occurred for Polycarbonate. When the resin was changed to PMMA, the wash-out disappeared due to low melt temperature.

• 한국정보시스템학회지:정보시스템연구
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• 제8권2호
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• pp.91-110
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• 1999

Recently, searching agent systems to help purchase of products between business and customer have been actively studied in Electronic Commerce(EC). However, the most of comparative searching agent systems are only provided customers with searching results by the keyword-based search, and is not support the efficient decision models to be selected products considering the customer's requirements. This paper proposes the decision agent system applied decision model as well as searching functions based on the keyword-input to be selected useful products in EC. The proposed decision agent system is consist of the user interface, provider interface, decision model. Especially, as the example of the decision model, this paper is designed and implemented the prototype of decision agent system which is normalized the searching data and value of customer's preference weight as to each attribute, and orderly provided customers with computed results. This agent system is also carried out sensitive analysis according to the reflection ratio of the each attribute.

• 한국전기전자재료학회논문지
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• 제13권10호
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• pp.847-858
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• 2000

The aging characteristics of 2 kinds of 3 years field-aged distribution polymer insulators which were dismounted from 5 regions have been investigated by electrical test and material characterization. Although the tan $\delta$of specimens prepared from weathershed was increased with surface aging, the tan $\delta$and leakage current of real products had no difference between virgin and dismounted ones. Due to the aging, all dismounted polymer insulators had micro-cracks on the surface of weathershed and only the products of manufacturer B showed the reduction of OIT(oxidation induction time). But, there were no differences between virgin and dismounted products in contact angle and chemical structure. Therefore, it can be considered that the aging is only limited on the surface of dismounted polymer insulators and that NMR technique are very useful to evaluate the aging of polymer materials.

• 한국통신학회논문지
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• 제35권2B호
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• pp.296-301
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• 2010

RFID 시스템은 무선 전송을 이용하여 물건을 인식하도록 하는 시스템이다. RFID의 응용분야는 그 범위가 매우 다양하고 폭넓은데 그 중 가장 활발하게 적용되는 응용분야는 기업의 공급망 관리이다. 현재는 기업이 RFID 태그가 부착된 물품을 개인에게 판매한 후에는 보안상 문제와 차후 관리의 어려움을 이유로 RFID 태그를 제거하거나 Kill 태그 명령을 내려 RFID 태그의 기능을 정지시킨다. 하지만, 본고에서는 RFID가 부착된 물품이 개인에게 판매되어 소유가 이전될 때 물품의 정보를 전자상품 코드정보 서비스 표준(EPCIS) 서버로부터 개인 물품 관리 서버로 이전하는 시스템 구조를 제안한다. 이 방법을 사용하면 태그를 제거하지 않고도 프라이버시 침해 없이 개인 물품을 관리 할 수 있다. 또한 개인 물품의 위치관리와 그룹관리가 용이한 개인물품관리서버를 제안한다.

• 청정기술
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• 제15권1호
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• pp.23-30
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• 2009

EU의 WEEE 지침에서는 전기전자제품의 생산자들이 반드시 달성하여야 하는 재활용률과 재생률의 목표치를 설정해 놓았다. 하지만 어떻게 재활용률과 재생률을 계산해야 하는지는 규정하지 않았다. 생산자의 입장에서는 설계단계에서 제품의 폐기단계에서의 재활용률과 재생률을 예측하고 결과를 설계의 개선에 반영하기 위하여 제품의 재활용가능률과 재생가능률을 산정해 볼 수 있는 표준방법이 필요하다. 본 연구에서는 전기전자제품의 생산자들이 개발되는 제품의 재활용가능률 및 재생가능률을 산정할 수 있는 방법들을 조사하고 폐기단계에서의 재활용률과 재생률과 유사한 결과를 얻을 수 있는 재활용가능률과 재생가능률의 산정방법을 개발하였다. 개발된 방법은 여러 가지 종류의 가전제품에 적용하여 결과를 검정해 보았다.

• 소성∙가공
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• 제16권5호통권95호
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• pp.396-400
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• 2007

LTCC(Low Temperature Co-fired Ceramic) which offers a good performance to produce multilayer structures with electronic circuits and components has emerged as an attractive technology in the electronic packaging industry. In LTCC module fabrication process, the lamination and the sintering are very important processes and affect the electrical characteristics of the final products because the processes change the permittivity of ceramics and the dimension of the circuit patterns which have influences on electronic properties. This paper discusses the influence of lamination pressure and sintering temperature on the permittivity and the dimensional change of LTCC products. In the present investigation, it is shown that the permittivity increases along with increasing of the lamination pressure and the sintering temperature.

• 대한인간공학회지
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• 제19권3호
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• pp.51-60
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• 2000

Non-verbal sound feedback, called earcon, has been used for portable digital electronic products to give appropriate information for the selected function. This study evaluated usability based on user cognition time, error rate, and subjective satisfaction using 20 male and female subjects. The study compared five major user functions from a portable digital electronic product with currently available earcons and the same functions from the product with the new earcons (suggested by this study) which considered user cognitive characteristics, such as loudness, pitch, melody, and length. For subjective evaluation, the study assessed various earcons by subjective impression of sounds using the seven-point rating scales. Major statistical results indicated that the new earcons significantly reduced user error rates and generally improved user performance functions, such as 'play, off, stop, fast forward, and rewind.'