• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2002년도 춘계학술대회 논문집
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• pp.387-392
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• 2002

This paper presents a new scheme of neural network controller to improve the robustuous of robot manipulator using digital signal processors. Digital signal processors, DSPs, are micro-processors that are particularly developed for fast numerical computations involving sums and products of variables. Digital version of most advanced control algorithms can be defined as sums and products of measured variables, thus it can be programmed and executed through DSPs. In addition, DSPs are as fast in computation as most 32-bit micro-processors and yet at a fraction of their prices. These features make DSPs a viable computational tool in digital implementation of sophisticated controllers. During past decade it was proposed the well-established theorys for the adaptive control of linear systems, but there exists relatively little general theory for the adaptive control of nonlinear systems. Perforating of the proposed controller is illustrated. This paper describes a new approach to the design of adaptive controller and implementation of real-time control for assembling robotic manipulator using digital signal processor. Digital signal processors used in implementing real time adaptive control algorithm are TMS320C50 series made in TI'Co..

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2001년도 추계학술대회(한국공작기계학회)
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• pp.134-139
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• 2001

This paper presents a new scheme of neural network controller to improve the robustuous of robot manipulator using digital signal processors. Digital signal processors, DSPs, are micro-processors that are particularly developed for fast numerical computations involving sums and products of variables. Digital version of most advanced control algorithms can be defined as sums and products of measured variables, thus it can be programmed and executed through DSPs. In addition, DSPs are as fast in computation as most 32-bit micro-processors and yet at a fraction of their prices. These features make DSPs a viable computational tool in digital implementation of sophisticated controllers. During past decade it was proposed the well-established theorys for the adaptive control of linear systems, but there exists relatively little general theory for the adaptive control of nonlinear systems. Perforating of the proposed controller is illustrated. This paper describes a new approach to the design of adaptive controller and implementation of real-time control for assembling robotic manipulator using digital signal processor. Digital signal processors used in implementing real time adaptive control algorithm are TMS320C50 series made in TI'Co..

• 한국전자거래학회지
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• 제5권1호
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• pp.135-158
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• 2000

In recent years, many retail businesses jumped on the Internet auction bandwagon and paid substantially high fees to learn and develop proper business strategies for this new environment. Unlike what most businesses in the real world presume, this research shows that discriminatory-price ascending-bid auctions in a digital economy might be not very beneficial for the sellers on the Internet, if sellers sell the identical digital products through both a typical posted-price market and an auction. Using an extensive technology infrastructure along with suitable incentives and rules for market agents, we found that a discriminatory-price ascending-bid auction, which is the most popular auction mechanism on the Internet, serves consumers better than it does the sellers or producers in the digital economy. That is, the average prices for digital goods in these auctions are substantially lower than the prices in a posted-price market. This shows that it is not so wise for sellers to jump on the bandwagon of Internet auctions, if there is a market place with posted-price mechanisms which sells comparable items, or if a seller does not have special advantages or strategies in this new market institution. Electronic market mechanisms provide powerful means of understanding and measuring consumer characteristics including willingness-to-pay and other demographics for sellers or producers. Many concern that sellers may extract the entire surplus from the market by using customization on the Internet, thus consumers will be worse off in this digital economy. We found that these sellers who can customize their products and prices fail to capture the whole consumers surplus and cannot exercise a monopoly. One major explanation for this phenomenon is that the competition among the sellers prohibits them from charging prices according to customers demand for each product, where switching from one seller to another is not so difficult for the customers, and reselling products among the buyers are prohibited.

• 제품안전
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• 1호통권145호
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• pp.56-57
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• 2006

• 제품안전
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• 11호통권143호
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• pp.56-57
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• 2005

• 제품안전
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• 12호통권144호
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• pp.48-49
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• 2005

• 제품안전
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• 3호통권147호
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• pp.64-65
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• 2006

• 디지털융복합연구
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• 제13권2호
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• pp.51-60
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• 2015

최근 대형할인점을 중심으로 PB제품의 매출액이 꾸준하게 증가하고 있는 추세이다. 가격이 저렴하다는 이유로 소비자들이 선호하는 것으로 인식되었으나 요즈음은 고가의 프리미엄 PB제품이 등장하면서 유통업체의 매출액이 급성장하고 있는 실정이다. 본 연구에서는 PB제품의 어떤 속성이 PB제품의 구매행동에 영향을 미치는가를 살펴보고자 하였다. 첫째, PB제품의 속성요인으로 점포이미지, 지식 및 정보, 품질지각, 경제적 가치 등이 PB제품 경험 후의 소비자태도에 미치는 영향을 살펴보았다. 둘째, PB제품의 경험 후 태도가 구매행동에는 어떠한 영향을 주는가를 분석하였다. 본 연구의 결과, 소비자는 PB제품의 다양한 속성 중에서 점포이미지, 정보 및 지식, 경제적 가치 등이 태도에 긍정적인 영향을 주었다. 또한 PB제품 경험 후의 태도는 구매행동에 긍정적인 영향을 주는 것으로 나타났다.

• 디지털산업정보학회논문지
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• 제15권4호
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• pp.173-187
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• 2019

Based on the theory of planning behavior, the purpose of this study was to validate the path to consumers organic bakery product purchasing process, and moderating effect of price sensitivity. The improvement of national income and changes in diet due to economic growth began to increase consumption of organic and eco-friendly farm products, and thus products using organic materials began to be released in bakeries. Thus, it was necessary to understand consumer awareness and purchasing processes for organic bakery products. Specifically, the study examined the structural relations among purchase reasons, purchase motives, and purchase behavioral intention of organic bakery products. A survey was conducted in May 2019 from adults who had experience purchasing organic bakery products in Seoul metropolitan area, and 327 responses were used for data analysis. The findings of the study showed that consumers' interests in health, food safety, and environment had positive effects on their attitudes, subjective norm, and perceived behavioral control toward organic bakery products, while their interests in organic products did not have an effect on perceived behavioral control. There were significant differences in the purchasing process of organic bakery products according to their price sensitivity. The study suggests that the correct delivery of information on organic ingredients and the price policies available to many consumers will contribute to the revitalization of organic bakery products.

• 한국정보처리학회논문지
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• 제6권1호
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• pp.203-215
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• 1999

최근 정보통신 제품 및 서비스 산업의 발달로 Vod, Teleshopping 등의 멀티미디어 서비스를 위한 사용자 시스템의 개발이 한창이다. 그러나 구현된 제품이 국제 표준과 일치하지 않으면 제품은 시장 경쟁력을 상실하게 된다. 따라서 관련 프로토콜의 특성을 고려한 적합성 시험은 제품 및 서비스의 상호운용성의 확보를 위해 필수적이라 할 수 있다. 본 논문은 디지털 음향영상 통신 프로토콜로 자리 잡고 있는 DAVIC(Digital Audio Visual Counci)표준의 주요 프로토콜에 대한 구현 제품의 체계적이고 효율적인 적합성 시험 방법으로서 프로토콜 스택내의 단일 계층 시험 및 스택간의 관계 시험 방법 및 구조를 제안하고자 한다.