• Proceedings of the Korea Inteligent Information System Society Conference
• /
• 2001.01a
• /
• pp.400-409
• /
• 2001

In conceptual design of engineering devices, a designer decomposes a required function into sub-functions, so-called functional decomposition, using a kind of functional knowledge representing achievement relations among functions. However, such knowledge about functionality of engineering devices is usually left implicit because each designer possesses it. Even if such knowledge is found in documents, it is often scattered around technical domains and lacks consistency. Aiming at capturing such functional knowledge explicitly and sharing it in design teams, we discuss its systematic description based on functional ontologies which provide common concepts for its consistent and generic description. We propose a new concept named “was of achievement” as a key concept for capturing such functional knowledge. Categorization of typical representations of the knowledge and its organization as is-a hierarchies are also discussed. The generic concepts representing functionality of a device in the functional knowledge are provided by the functional concept ontology, which makes the functional knowledge consistent and applicable to other domains. We also discuss development of a design supporting system using the systematized knowledge, called a functional was server. It helps human designers redesign an existing engineering device by providing a wide range of alternative ways of achievement of the required function in a manner suitable for the viewpoint of each designer and then facilitates innovative design.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
• /
• 2003.10a
• /
• pp.417-422
• /
• 2003

The KOMPSAT-2 MSC(Multi-Spectral Camera), with high spatial resolution, is currently under development and will be launched in the end of 2004. A sensor model relates a 3-D ground position to the corresponding 2-D image position and describes the imaging geometry that is necessary to reconstruct the physical imaging process. The Rational Function Model (RFM) has been considered as a generic sensor model. form. The RFM is technically applicable to all types of sensors such as frame, pushbroom, whiskbroom and SAR etc. With the increasing availability of the new generation imaging sensors, accurate and fast rectification of digital imagery using a generic sensor model becomes of great interest to the user community. This paper describes the procedure to generation of the RPC (Rational Polynomial Coefficients) for KOMPSAT-2 MSC.

• 제어로봇시스템학회:학술대회논문집
• /
• 2003.10a
• /
• pp.413-418
• /
• 2003

In this paper, a new multirate optimal finite impulse response (FIR) filter is proposed for the signal reconstruction in the nosy filter bank systems. The multirate optimal FIR filter replaces the conventional synthesis filters and the Kalman synthesis filter. First, the generic linear model is derived from the multirate state space model for an autoregressive (AR)input signal. Second, the multirate optimal FIR filter is derived from the multirate generic linear model using the minimum variance criterion. This paper also provides numerical examples and results. The simulation results illustrate that the performance is improved compared with conventional synthesis filters and the proposed filter has advantages over the Kalman synthesis filter.

• Transactions of the Korean Society of Pressure Vessels and Piping
• /
• v.6 no.1
• /
• pp.23-28
• /
• 2010

To enhance the reliability of ultrasonic testing system, MOST(Ministry of Science and Technology) bulletin 2004-13 was published in 2004.6 requiring performance demonstration in ultrasonic examination and MEST(Ministry of Education, Science and Technology) 2009-37 was published in 2009.9(formerly MOST bulletin 2004-13). In order to meet the MEST bulletin requirement and increase the reliability of ultrasonic testing, all the ultrasonic examination procedure and equipment should be performance demonstrated and qualified. In this paper, generic procedure for the ultrasonic examination of dissimilar metal welds are described and new technique are introduced.

• 한국정보통신설비학회:학술대회논문집
• /
• 2007.08a
• /
• pp.354-358
• /
• 2007

This article presents several methods of mobile communication network to access technologies utilizing unlicensed spectrum interworking. Generic Access Network (GAN) technology was already specified in GERAN (GSM EDGE Radio Access Network) and Interworking WLAN (I-WLAN) was standardized for WCDMA system for WLAN user to access WCDMA packet based services through WLAN access point. Voice Call Continuity is not access network dependent technology but is a kind of domain change scheme for voice call from Circuit Switching (CS) network to IP Multimedia Subsystem (IMS) and vice versa.

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.33 no.12
• /
• pp.1427-1432
• /
• 2009

The pitch motion of a generic gravity gradient satellite is investigated in terms of chaos. The Melnikov method is used for detecting the onset of chaotic behavior of the pitch motion of a gravity gradient satellite. The Melnikov method determines the distance between stable and unstable manifolds of a perturbed system. When stable and unstable manifolds transverse on the Poincare section, the resulting motion can be chaotic. The Melnikov analysis indicates that the pitch dynamics of a generic gravity gradient satellite can be chaotic when the orbit eccentricity is small.

• Proceedings of the Korean Information Science Society Conference
• /
• 2005.11b
• /
• pp.955-957
• /
• 2005

Ada 언어의 일반화(Generic) 메커니즘은 복잡한 대형 시스템의 설계에 있어 소프트웨어의 재사용성을 높이기 위한 효과적인 방편으로 사용되어 왔다. 일반화 모듈은 기능 또는 알고리즘은 정의되었으나 파라미터의 구체적인 속성이 아직 정해지지 않은 한 개의 소프트웨어 모듈을 다양한 파라미터를 적용하여 여러 곳에서 반복적으로 사용할 수 있도록 한 개념이다. 정형이론 및 구조적 설계기법에 기반한 설계도구인 Stalemate 또한 설계 모듈의 반복적인 재사용을 위해 일반화 차트(Generic Chart)를 제공하고 있다. ATCS(Air Traffic Control System) 설계 모듈에 적용한 결과 두 가지 모두 소프트웨어의 재사용과 설계의 효율성 향상을 위한 도구로 활용할 수 있으며 Statemate의 경우 일반화 차트를 다양한 자료형으로 실례화(Instantiation)할 수 있다면 보다 효과적인 설계모듈의 재사용이 가능할 것이다.

• Journal of Technology Innovation
• /
• v.2 no.1
• /
• pp.58-88
• /
• 1994

There have been fierce debates on the issue of generalizability of management functions, techniques, and practices between public and private sectors. Recognizing the growing concerns for the similarities and differences in R&D settings between the two sectors, we compared three public and three private R&D institutes in terms of environment and resources, project management, and R&D productivity. Our results show that there coexist similarities and differences at the same time between the two types of R&D institutes. So, we cannot conclude definitely whether R&D management is really generic or not. But, the authors weakly reject the assertion of generic property of management as far as R&D management is concerned.

• The Bulletin of The Korean Astronomical Society
• /
• v.41 no.2
• /
• pp.43.2-43.2
• /
• 2016

During the last decade, there has been a dramtic paradigm shift on the definition of the globular cluster (GC) systems. The decades-long lighter elemental variation issue in GC stars is now considered to be a generic feature of normal GCs in our Galaxy, most likely engraved during the multiple-phase normal GC formation. In this talk, we will introduce the new photometric system, so-call the JWL System, to measure CN and CH abundances in multiple stellar populations in GCs. The utility and the future application of the JWL System will be discussed.

• Journal of Electrical Engineering and Technology
• /
• v.11 no.5
• /
• pp.1077-1083
• /
• 2016