• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.352-354
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• 2008

A 15.4" WXGA TFT-LCD, featuring integrated a-Si:H gate driver circuits and reduced data driver ICs, has been developed. To reduce number of data lines into 1/2 of conventional structure, the pixel array has been re-mapped with re-organized data signal. Unintended artificial effects such as flicker were removed by adopting the novel pixel array having a 'zigzag' map. To minimize the power consumption, a column inversion method was incorporated in the zigzag pixel array (Fig.1) without modifying the polarity map of conventional dot inversion method.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.9-12
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• 2003

This paper describes a step-by-step method to minimize design iterations in a process of product design change. In the design process, two components are coupled if a change of a component can require the other components change, and design iterations are generated by the coupling. The design iteration is one of main factors that increase design effort. In this study, three matrices are used to solve the design iteration of automatic transmission lever, Requirement-Engineering matrix, Engineering-Components matrix, and DSM(Design Structure Matrix). Firstly, with the DSM, the product architecture and conceptual design process are proposed from product function analysis. Secondly, with the QFD, the Requirement-Engineering matrix and Engineering-Components matrix present the relationship among customer requirements, engineering issues, and product components. Lastly, the results of the QFD analysis are used in the DSM to solve the component interactions and to provide design

• 대한산업공학회지
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• 제33권2호
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• pp.174-182
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• 2007

Mass customization meets various needs of customers as well as produces various products and service in low cost like mass production. However, low cost and product diversity have conflicting concepts. Therefore, in order to solve this problem, we need standardization methods. In this paper, we suggest a method for determining the product platform which is a set of common parts in a product family. To achieve the method, we used the Contradiction Analysis of TRIZ (Theory of Inventive Problem Solving), Using this approach, we found a model that obtains various products within limited resources and conditions. Also, we suggest another method that increases the flexibility of our method by Design Structure Matrix.

• 한국멀티미디어학회논문지
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• 제6권6호
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• pp.945-952
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• 2003

B2B의 전자상거래의 발달로 상품 정보를 효과적으로 표현하고, 이러한 정보를 회사들간에 교환하기 위한 디지털 카탈로그는 점차 그 중요성이 인식되고 있다. 본 논문은 상품들을 통합하여 효과적으로 표현할 수 있는 통합 상품 표현 모델을 참조하고, 이 모델을 Oracle 8i에서 제공하는 XDK(XML Development Kit)를 사용하여 구현한다. 먼저, 상품 표현 모델을 XML DTD로 표현하고, 이 DTD로 표현된 KML상품 정보를 효과적으로 Oracle 8i에 데이터베이스에 저장하고 검색하는 시스템을 구축한다. 마지막으로, 구축된 시스템에 대한 실행 예제를 보여준다.

• Journal of Information Display
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• 제2권1호
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• pp.43-46
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• 2001

To meet the demand of the display market for large, flat, high-resolution screen, the Super Common eXtended field Oval lens (S-CXO) has been developed with resolution improvement of 10% or more compared to a conventional electron gun. A new main lens structure is adopted, to enhance the effectiveness of aperture and the performance. The new main lens can be assembled using an existing assembly system

• Asia Marketing Journal
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• 제21권3호
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• pp.47-64
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• 2019

We analyze and study competition in differentiated product market using public data source. Understanding competitive market structure is critical for firms to assess how their products compete against other firms in a given market. In this paper, we estimate consumer demand, extend clout and vulnerability framework, and study competition among multi-product manufacturers in differentiated product market. For our empirical analysis, we adopt choice-based aggregate demand model and estimate consumer demand while accounting for unobserved product characteristics. Once we estimate consumer demand, we compute full price elasticity matrix and investigate intra- and inter- manufacturer substitutions among consumers. This research offers a framework for marketers to analyze and understand market structures, leading them to informed decisions.

• 한국산업보건학회지
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• 제25권1호
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• pp.36-44
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• 2015

Objectives: This study aimed to elucidate the physicochemical properties of silica powder and airborne particles as by-products generated from fabrication processes to reduce unknown risk factors in the semiconductor manufacturing work environment. Materials and Methods: Sampling was conducted at 200 mm and 300 mm semiconductor wafer fabrication facilities. Thirty-two powder and airborne by-product samples, diffusion(10), chemical vapor deposition(10), chemical mechanical polishing(5), clean(5), etch process(2), were collected from inner chamber parts from process and 1st scrubber equipment during maintenance and process operation. The chemical composition, size, shape, and crystal structure of silica by-product particles were determined by using scanning electron microscopy and transmission electron microscopy techniques equipped with energy dispersive spectroscopy, and x-ray diffractometry. Results: All powder and airborne particle samples were composed of oxygen(O) and silicon(Si), which means silica particle. The by-product particles were nearly spherical $SiO_2$ and the particle size ranged 25 nm to $50{\mu}m$, and most of the particles were usually agglomerated within a particle size range from approximately 25 nm to 500 nm. In addition, the crystal structure of the silica powder particles was found to be an amorphous silica. Conclusions: The silica by-product particles generated from the semiconductor manufacturing processes are amorphous $SiO_2$, which is considered a less toxic form. These results should provide useful information for alternative strategies to improve the work environment and workers' health.

• 한국항해항만학회지
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• 제44권2호
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• pp.128-135
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• 2020

Long-term shipping contracts represent the cooperative and coexisting relationships between the shipping and steel industries. Yet, differences between the contract forms for iron ore and steel products have emerged. Specifically, the large proportion of consecutive voyage charters (CVC) is being applied in the iron ore trade, whereas the contract of affreightment (COA) is proportionally higher for shipping steel products. The literature review and in-depth interviews in this study identified through the research model, the characteristics of the shipping and market structure in both markets have significantly contributed to the preference of different long-term contracts. It has been determined that the mutual oligopoly market structure and the characteristics of shipping such as, the small number of suitable vessels in the market, the single fixed load/discharge ports, the long-distance voyages, and the potential risks for fatal accidents because of cargo liquefaction, for the iron ore trade, provide higher contribution to the preference of CVC contracts. In contrast, the consignor oligopoly market structure and the shipping characteristics, such as the greater number of suitable vessels available in the market, the variation in ports, the cargo quantity per shipment, the various load/discharge ports, and the need for experienced carriers for steel product loading in the steel product trade has shown higher preference on the COA contracts as the consignors with superiority over the shipowners, resulting in favorable contract types and conditions for the consignors.

• 디자인학연구
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• 제12권1호
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• pp.97-106
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• 1999

생산 기술의 발전과 함께, 날로 다양해지고 복잡해져 가는 소비자의 니즈를 제품 개발 과정에서 반영해야 할 필요성이 점차 높아져 가고 있다. 그러나, 마케팅적 관점에 그 기초를 두고 구조화되고 있는 현재의 소비자 니즈 체계는 제품 개발 단계에서 응용하기에는 너무 추상적이고 범주적인 성격을 가진다. 따라서, 본 연구에서는 인지과학/인지심리학 이론을 중심으로 하여, 제품 컨셉 수립 단계에서 실제적으로 응용할 수 있도록 소비자 니즈를 구조화하는 방법론을 수립하고, 니즈 구조화에 대한 가이드라인을 제시하는 것을 목적으로 한다. 본 연구를 통해 규명된 발견 점은 다음과 같다. 첫째, 기존의 분류 기준과 같이 소비자 니즈의 범주뿐 아니라 실제적인 니즈의 속성까지를 구조화하기 위해서는, 소비자에 대한 제품의 실제적 의미에 해당하는 감성 개념을 구조 내에 포함시켜야 한다. 또한, 이와 같은 개념 하에 수립된 니즈 구조를 감성 니즈 구조라고 정의할 수 있다. 둘째, 개념의 범주화는 상징적 개념을 중심으로 한 본질적 개념과 외연적 개념의 결합을 통하여 이루어질 수 있다. 이러한 가설을 바탕으로 하면, 감성 니즈 구조는 가치 컨셉(본질적 개념), 소비자 니즈(외연적 개념)가 감성(상징적 개념)과 결합함으로써 이루어질 수 있다.

• 한국전자거래학회지
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• 제12권3호
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• pp.19-31
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• 2007

본 논문에서는 앞으로 국가의 RFID를 이용하여 물품자산을 관리할 수 있는 국가물품식별코드의 운용방안을 제시한다. 첫째, 국가에서 수행하는 물품자산관리체계의 운용체계를 제시한다. 둘째, 상품구매와 물품자산 관리간의 연계성을 고려하여 ISO/IEC 15459를 따르는 국가물품식별코드체계의 구조를 제시한다. 그리고 이 식별코드체계를 ISO/IEC 18000-6C 태그에 인코딩하는 방안을 제시한다. 셋째, 상품구매 및 물품자산관리 단계에서 국가물품식별코드를 생성 및 관리하기 위한 운용 업무 프로세스를 제시한다.