• ICROS
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• v.4 no.4
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• pp.17-24
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• 1998

본 자료에서는 SMEMA에 의해 최근 추진되고 있는 SRFF에 대해 그 추진 동기와 표준내용을 살펴보았다. SRFF는 반도체 실장장비의 사용자나 개발자에 있어 미래에 대한 새로운 가능성을 제공해 주고 있다. SRFF는 궁극적으로 장비의 상호운용성(Interoperaribility), 이식성(Portability), 교환성(Interchangeability), 연결성(Connectivity)를 제공해 줄 것이며, 이는 반도체 공장의 CIM을 구축하는데 있어 핵심기술로서의 역할이 가능할 것이다. 또한, 반도체 공장의 CIM을 효과적으로 구축하기 위해서는 개방형 생산 시스템과 관련이 있는 기존의 많은 표준을 수용하고 대상에 적합한 네트워크 구축도 필요할 것이다. 이는 최근 많은 논의가 일어나고 있는 MMS on TCP/IP, Fieldbus 등이 많은 도움을 주게 될 것이다. 생산시스템의 개방화는 표준화가 전제되어야 한다. 우리는 새로운 표준으로서 등장하고 있는 신기술에 적극적이고 능동적으로 대응하고 수용하는 자세가 필요하다고 생각된다.

• The Transactions of the Korean Institute of Power Electronics
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• v.5 no.5
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• pp.467-474
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• 2000

This paper describes the development of 7he utility vehicle controller using combination system of battery and photovoltaic power for increasing operation time. In order to keep interchangeability, low cost and high performance, a separately excited DC Motor is controlled without velocity and current measurements by $\mu$-processor. For the parallel operation between the solar cell and battery, dc-dc converter is used, which is applied to the maximum power Point tracking(MPPT) and current control algorithm. By the simulation and experimental results of trial product, the vapidity of the proposed system is verified.

• Transactions of the Korean Society of Automotive Engineers
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• v.12 no.5
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• pp.85-93
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• 2004

Electric vehicle body has to be subjected to uniform load and requires auxiliary equipment such as air pipe and electric wire pipe. Especially, the cross beam supports the weight of passenger and electrical equipments. This need to use adaptive design in initial design stage to gain economy through interchangeability between many kinds of components. This study performs the topology optimization by the concept of homogenization based on optimality criteria method which is efficient for the problem with a number of boundary condition and design variable. Therefore this provides the method to determine the optimum position and the shape of circular hole in the cross beam and then can achieve the weight minimization of electric vehicle body.

• Communications for Statistical Applications and Methods
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• v.13 no.2
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• pp.285-295
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• 2006

As more generic drugs become available, the quality, safety, and efficacy of generic drugs have become a public concern. Specifically, drug interchangeability among generic copies of the same brand-name drug is a safety concern. This research proposes a Bayesian method for assessing bioequivalence between two generic copies of the same brand-name drug from two independent $2{\times}2$ crossover design experiments. Uninformative priors are considered for general use and the posterior distribution of the difference of two generic drug effects is derived from which the highest probability density interval can be evaluated. Examples are presented for illustration.

• Journal of the Korean Mathematical Society
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• v.53 no.6
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• pp.1331-1345
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• 2016

A K-g-frame is a generalization of a g-frame. It can be used to reconstruct elements from the range of a bounded linear operator K in Hilbert spaces. K-g-frames have a certain advantage compared with g-frames in practical applications. In this paper, the interchangeability of two g-Bessel sequences with respect to a K-g-frame, which is different from a g-frame, is discussed. Several construction methods of K-g-frames are also proposed. Finally, by means of the methods and techniques in frame theory, several results of the stability of K-g-frames are obtained.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.876-877
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• 2014

In recently, the SNS which is the hot issue of the knowledge-based information age use various goal based on human networking. This service construct a human relationship which exchange of information and opinion freely, and can extend the human network relationship using open his profile and closeness others. But, each individual's privacy invasions and pissing based on information open and sharing are rising. In this paper we present a method of protecting the SNS group's communications and information interchangeability efficiently.

• Journal of Advanced Navigation Technology
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• v.5 no.1
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• pp.85-96
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• 2001

Recent development of a smart structures module and its successful integration with a multidisciplinary design optimization software $ASTROS^*$ and an Aeroservoelasticity module is presented. A modeled F-16 wing using piezoelectric actuators is used as an example to demonstrate the integrated software capability to design a flutter suppression system. For an active control design, neural network based controller is used for this study. A smart structures module is developed by modifying the existing thermal loads module in $ASTROS^*$ in order to include the effects of the induced strain due to piezoelectric actuation. The control surface/piezoelectric equivalence model principle is developed, which ensures the interchangeability between the control surface force input and the piezoelectric force input to the Aeroservoelasticity modules in $ASTROS^*$. The results show that the developed controller can increase the flutter speed.

• 한국신재생에너지학회:학술대회논문집
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• 2009.06a
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• pp.335-335
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• 2009

산업의 고도화에 따라 소비자들이 사용하는 전기, 전자기기의 사용시간 연장에 대한 욕구가 강해지고 있으며, 이에 따라 기존 2차전지의 용량을 극대화하는 연구와 더불어 차별화하여 장시간 안정적으로 사용할 수 있는 신규 전원 개발이 요구되어 진다. 연료전지는 이러한 욕구를 충족시킬 수 있는 차세대 전지로서 충전 대기 시간 없이 연료의 교체만으로 언제 어디서나 전력을 공급할 수 있으며, 장시간 대용량이 요구되는 Outdoor 응용분야에서는 1, 2차 전지대비 무게/부피 에너지밀도(Wh/kg, Wh/L)와 에너지 비용($/Wh, \/Wh)면에서 높은 경쟁력을 가지고 있다. 이러한 휴대용 연료전지의 최근 개발동향을 소형 전자기기용 충전기, 산업용 UPS, APU 및 군사용 이동전원 분야로 나누어 소개하고자 한다. 또한, 이동용과 휴대용 연료전지에 대한 국제 연료전지 표준화기구의 최근 국제규격에 대해 소개하며, 이를 통해 대두되고 있는 기술적 이슈와 함께 국내 표준규격 채택에 필요한 제안을 하고자 한다. 국제표준화 분과위원회 (WG 7, 8, 9, 10)의 2009년 이후 표준화 활동계획을 공유함으로써 관련 연구개발 및 상용화 업체들의 이해를 돕고자 한다.

• Journal of the Korean Society for information Management
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• v.21 no.4 s.54
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• pp.27-47
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• 2004

In this study, the experiment was made to transform the relationship among terms in a thesaurus to ontology language as search tools for multilingual text. As a result, the equivalent relationship in the thesaurus can be expressed by different ways in the ontology, such as equivalentClass, equivalentProperty, sameAS, and so on. On the other hand, the associative relationship can be represented by ObjectProperty, DatatypeProperty, and inverseOf. For this test, first of all, the descriptors assigned by AAT and the descriptors from bilingual thesaurus by ICCD were translated into Korean. Then, the facet was used for conceptual equivalence among terms from different languages. The result of the study showed that using rdf:Property in ontology was the most effective way of transforming multilingual thesaurus into ontology.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2003.04a
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• pp.139-142
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• 2003

As composite materials are gaining wide acceptance in aircraft structure, repair of damaged composite is becoming an important issue. The issues in composite repair include high cost, material interchangeability, water ingression, and structural integrity. To address these problems, researchers have studied on the composite repair in various aspects. In this paper, an Internet-based advisory service (called Repair Advisory Service, RAS) for composite repair is proposed to increase efficiency for repair process. In the RAS system the web browser is used as its user interface, which provides easy access to the service. The RAS server provides web-based tools for failure prediction, Structural Repair Manual (SRM), automated prepreg cutting process, material properties, inventory and knowledge base. The computer codes implemented for repair design estimate the tensile failure and shear failure of repaired structures. The prediction of failure is based on the maximum strain criterion for tensile failure while elastic-perfect plastic shear failure model is applied for interfacial failure. The OEM's SRM is provided in the PDF format for viewing and searching by web browsers instead of looking up paper version SRM. The knowledge base in this site offers a room to share and distribute ideas, memos, publications, or suggestions from the repair engineers. The fabrication tool of RAS reads repair geometry from engineers then generates a CNC toolpath to cut prepreg patches. The RAS service is open to public and available at http://nano.gsnu.ac.kr/. Broad feedback from field technicians and engineers is welcome to improve the usefulness of RAS.