• Journal of Mechanical Science and Technology
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• 제19권5호
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• pp.1080-1086
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• 2005

The preliminary design optimization of multi-stage spur gear reduction units has been a subject of considerable interest, since many high-performance power transmission applications (e.g., automotive and aerospace) require high-performance gear reduction units. There are multiple objectives in the optimal design of multi-stage spur gear reduction unit, such as minimizing the volume and maximizing the surface fatigue life. It is reasonable to formulate the design of spur gear reduction unit as a multi-objective optimization problem, and find an appropriate approach to solve it. In this paper an interactive physical programming approach is developed to place physical programming into an interactive framework in a natural way. Class functions, which are used to represent the designer's preferences on design objectives, are fixed during the interactive physical programming procedure. After a Pareto solution is generated, a preference offset is added into the class function of each objective based on whether the designer would like to improve this objective or sacrifice the objective so as to improve other objectives. The preference offsets are adjusted during the interactive physical programming procedure, and an optimal solution that satisfies the designer's preferences is supposed to be obtained by the end of the procedure. An optimization problem of three-stage spur gear reduction unit is given to illustrate the effectiveness of the proposed approach.

• ETRI Journal
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• 제33권1호
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• pp.128-131
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• 2011

This letter describes a file format designed for interactive music service where users are able to recompose music based on their own preferences. The proposed design utilizes the flexible features of the ISO base media file format (ISO/IEC 14496-12, ISO-BMFF). The techniques offered in the proposed file format enable compact storage and efficient preset management, allowing users to recompose music with ease and convenience. Additionally, an implementation scheme for an interactive music player is shown along with its results.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 추계 학술발표대회 논문집
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• pp.176-177
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• 2004

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 추계 학술발표대회 논문집
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• pp.126-127
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• 2004

• 전력전자학회:학술대회논문집
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• 전력전자학회 2000년도 전력전자학술대회 논문집
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• pp.127-132
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• 2000

This paper describes a 3-phase Line-Interactive APF system and analyzes its operating characteristics considering LC Filter output characteristics. Topology of APF is similar to that of Off-Line UPS in the point of parallelly operating inverter system. So it is possible to be multi-functioned active compensating system according to power condition. Likewise this actively operating system from APF to UPS and vice versa is often to be called Line-Interactive system. And more than that Line-Interactive system needs precise design of LC filter on converter output side to make this system fully operate in both APF and UPS modes. The problem in this point is how to design LC Filter to be contented with two different system characteristics so this paper analyzes this problem and proposes its design procedures. Then suggested filter design is verified to be contented by the simulations and experimental results

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2005년도 춘계 학술발표대회 논문집
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• pp.270-271
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• 2005

• 감성과학
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• 제13권4호
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• pp.777-788
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• 2010

발달장애아동은 사회적 의사소통의 기술을 개발하기 위하여 이른 시기의 진단과 의학적 치료가 매우 중요하다. 하지만 발달장애아동들은 공공 복지기관과 전문 의료시스템의 부족으로 인하여 의학적 치료에 큰 어려움을 가지고 있다. 특히 적은 수의 아동만을 대상으로 해야 되는 일대일 면접치료방법의 특이성으로 인하여 발달장애 아동은 장소, 시간, 비용의 문제에 직면하고 있다. 이러한 문제점을 해결하기 위하여 다양한 상호작용의 기술과 보조기술, 서비스가 개발되고 있으며, 본 논문은 이러한 상호작용 디자인의 가능성을 탐색하고 더 나아가 치료시스템의 구체적 디자인개발을 목표로 한다. 본 연구는 학제간 협업, 빠른 프로보타입 개발, 전문가와 사용자 평가중심의 프로세스, 가상현실 기술, 시나리오 중심의 디자인을 주요 개발 방법론으로 적용하여, 상호작용치료시스템(ITS)의 구체적 사례를 개발하였다. 또한 상호작용치료시스템(ITS)을 치료기관과 협력하여 실제 임상실험에 적용함으로서 이러한 상호작용 다자인의 효용성과 타당성, 활용방안 등을 검증하였다.

• 디자인학연구
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• 제20권3호
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• pp.129-140
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• 2007

사용자의 만족을 향상 시키는 쌍방향TV 서비스의 인터페이스 개인화 방안을 사용자 편의의 관점에서 연구하고 디자인 가이드라인을 제안하고자 한다. 먼저 서론에서는 연구의 목적을 비롯하여 구성을 기술하였으며, 쌍방향TV 특성과 개인화에 대해 정의하여 서비스를 위한 기반 미디어의 발전 방향을 알고, 인터페이스 디자인요소, 사용자 요구사항을 평가하기 위한 사용성 평가방법 등 본 연구의 근간이 되는 자료 및 요소들을 정리하였다. 다음으로 스카이라이프의 쌍방향TV서비스 "스카이터치"의 인터페이스를 분석하고 사용성 평가를 통해 사용자의 편의를 위한 니즈(needs)를 조사하고 정리하였다. 또한 개인화 서비스에 대해 앞서 실행 중에 있는 웹 포털 사이트를 분석하여 쌍방향TV에서 개인화 인터페이스 디자인 방향을 조사하였다. 앞서 조사, 분석한 자료를 토대로 쌍방향TV 개인화를 위한 인터페이스 디자인의 가이드라인을 네비게이션 구조와 레이아웃으로 분류하여 제시하고 제시된 가이드라인에 맞추어 현재 쌍방향서비스를 시행중인 스카이라이프의 '스카이터치'에 직접 적용하여 개인화 인터페이스 디자인을 기술하였다

• 디지털산업정보학회논문지
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• 제6권3호
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• pp.159-168
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• 2010

Developments and changes in digital environment based on computer technologies and internet networks enabled us interactive communication for planning and execution through the freedom of 'connection', 'sharing', and 'conversion'. The subject of this study, interactive commercial, might be the core of success based on creation which stems from communication design, revolution in design and technology, and conversion. Communication in modern economy is not optional, but essential. Furthermore, like evolution process up to Augmented Reality from developments of mobile communication technology, or concept in paradigm change, digital interactive commercial means the core of success, not a part of it. Therefore, in order to achieve success in the global competition structure, mobile communication design, revolution, and creation which produce added value shall be working as a base. In order to reach effective communication process performance of interactive commercial media, this study would like to propose building a media commercial system which is realized by human senses. Using this, standardized methods for interactive commercial which can be used together with augmented reality based on digital technology, and for using digital robot contents are available, along with methodology system of their use. In addition, the ultimate goal of this study aims to discover new factors through reorganization of precedent analysis and adaptation based on academic achievement and practical application. And thus, it wants to contribute to practical use of interactive commercial out of augmented reality-based communication in which technology, marketing, and design are integrated to be used in real sense.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2005년도 춘계학술발표대회 개요집
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• pp.343-345
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• 2005

In comparison to general purpose step-up/down transformer, welding transformer for resistance spot welding requires strict design criteria. The major significant specifications include duty cycle, arm length and its geometric configuration(window area) as well as various current/voltage conditions and material properties. This interactive program propose new promising procedure for weldling transformer. Users can input design variables and modify in accordance with graphic Output.