• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2005년도 BIOINFO 2005
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• pp.388-391
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• 2005

The Protein Structural and Functional Conservation need a common language for data definition. With the help of common language provided by Protein Ontology the high level of sequence and functional conservation can be extended to all organisms with the likelihood that proteins that carry out core biological processes will again be probable orthologues. The structural and functional conservation in these proteins presents both opportunities and challenges. The main opportunity lies in the possibility of automated transfer of protein data annotations from experimentally traceable model organisms to a less traceable organism based on protein sequence similarity. Such information can be used to improve human health or agriculture. The challenge lies in using a common language to transfer protein data annotations among different species of organisms. First step in achieving this huge challenge is producing a structured, precisely defined common vocabulary using Protein Ontology. The Protein Ontology described in this paper covers the sequence, structure and biological roles of Protein Complexes in any organism.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2004년도 학술대회 논문집
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• pp.365-370
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• 2004

The integration of intelligent devices, devices-level networks, and software into motor control systems can deliver improved diagnostics, fast warnings for increased system reliability, design flexibility, and simplified wiring. Remote access to motor-control information also affords an opportunity for reduced exposure to hazardous voltage and improved personnel safety during startup and trouble-shooting. This paper presents LonWorks fieldbus networked intelligent induction control system architecture. Experimental bed system with two inverter motor driving system for controlling 1.5kW induction motor is configured for LonWorks networked intelligent motor control. In recent years, MCCs have evolved to include component technologies, such as variable-speed drives, solid-state starters, and electronic overload relays. Integration was accomplished through hardwiring to a programmable logic controller (PLC) or distributed control system (DCS). Devicelevel communication networks brought new possibilities for advanced monitoring, control and diagnostics. This LonWorks network offered the opportunity for greatly simplified wiring, eliminating the bundles of control interwiring and corresponding complex interwiring diagrams. An intelligent MCC connected in device level control network proves users with significant new information for preventing or minimizing downtime. This information includes warnings of abnormal operation, identification of trip causes, automated logging of events, and electronic documentation. In order to show the application of the multi-motors control system, the prototype control system is implemented. This paper is the first step to drive multi-motors with serial communication which can satisfy the real time operation using LonWorks network.

• 한국CDE학회논문집
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• 제8권4호
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• pp.231-242
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• 2003

Multidisciplinary Design Optimization (MDO) is an optimization technique considering simultaneously multiple disciplines such as dynamics, mechanics, structural analysis, thermal and fluid analysis and electromagnetic analysis. A software system enabling multidisciplinary design optimization is called MDO framework. An MDO framework provides an integrated and automated design environment that increases product quality and reliability, and decreases design cycle time and cost. The MDO framework also works as a common collaborative workspace for design experts on multiple disciplines. In this paper, we present the architecture for an MDO framework along with the requirement analysis for the framework. The requirement analysis has been performed through interviews of design experts in industry and thus we claim that it reflects the real needs in industry. The requirements include integrated design environment, friendly user interface, highly extensible open architecture, distributed design environment, application program interface, and efficient data management to handle massive design data. The resultant MDO framework is datasever-oriented and designed around a centralized data server for extensible and effective data exchange in a distributed design environment among multiple design tools and software.

• 한국자동차공학회논문집
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• 제22권2호
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• pp.115-122
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• 2014

Injection pressure is one of factors that influence part quality. In this paper, injection pressure was minimized by optimizing valve gate locations. In order to perform design optimization, MAPS-3DTM (Mold Analysis and Plastic Solution-3D) was used for injection mold analysis and PIAnOTM (Process Integration, Automation and Optimization) was used as process integration and design optimization. Also we adapted meta models based on design of experiments for efficiency. By using introduced methodology, we were able to obtain a result so that maximum injection pressure reduced by 28% compared to the initial design. And the validity of the proposed method could also be demonstrated.

• 한국군사과학기술학회지
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• 제17권2호
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• pp.189-196
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• 2014

Automated design program using commercial process integration and optimization program was developed for conceptual design of fighter-class aircraft. Wind tunnel test data and performance analysis results were compared for the verification of analysis tool of this program, and the usefulness of the tool was found. After integration with radar cross section analysis tool, the correlation with configuration design variables of wing, tail and performance parameters was identified by design of experiment, and the optimized configuration for weight and RCS was derived from optimization of empty weight and average frontal RCS value. After parameter definition of fuselage, the program can be implemented for full aircraft configuration.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.3661-3666
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• 2015

본 논문은 MDO에서 적용가능한 근사기법의 활용에 관한 연구를 수행하였다. MDO 통합 설계 시스템을 구축하는데 있어서, 최적화 과정에서 발생하는 수많은 반복 계산, 광범위한 다분야 간 설계 및 CAD/CAE와의 연계를 고려함으로써 발생하는 방대한 계산량 및 데이터의 정보량으로 인해 수반되는 계산 비용을 현저히 줄이지 않고는 통합설계 시스템을 실제로 구축한다 해도 그 효용성은 비현실적일 수밖에 없게 된다. 따라서 본 연구에서는 MDO 통합설계 시스템 프레임워크의 목적을 위해, 필수적으로 선행되어야 하는 다양한 근사기법의 적절한 활용을 통해 MDO에서 적용가능한 근사기법의 활용에 대한 연구를 수행하였다.

• 한국인공지능학회지
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• 제12권2호
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• pp.17-23
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• 2024

Various methods have been developed to predict the flight path of an air-launched weapon to intercept a fast-moving target in the air. However, it is also getting more challenging to predict the optimal firing zone and provide it to a pilot in real-time during engagements for advanced weapons having new complicated guidance and thrust control. In this study, a method is proposed to develop an optimized weapon engagement zone by the SCG (Scaled Conjugate Gradient) algorithm to achieve both accurate and fast estimates and provide an optimized launch display to a pilot during combat engagement. SCG algorithm is fully automated, includes no critical user-dependent parameters, and avoids an exhaustive search used repeatedly to determine the appropriate stage and size of machine learning. Compared with real data, this study showed that the development of a machine learning-based weapon aiming algorithm can provide proper output for optimum weapon launch zones that can be used for operational fighters. This study also established a process to develop one of the critical aircraft-weapon integration software, which can be commonly used for aircraft integration of air-launched weapons.

• 한국인터넷방송통신학회논문지
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• 제12권5호
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• pp.255-260
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• 2012

현재 운영되는 주요 하 폐수 처리시설 관리에 있어 환경 보호를 위한 엄격한 규제로 수질오염 측정 시스템에 관한 시스템이 부각되고 있다. 하지만 기존 하 폐수 처리 시스템은 하 폐수에 특화된 수질감시 기술이 미흡하며, 그중 센서와 네트워크를 통한 1:n 데이터 전송이 아닌 1:1을 지향하며, 이기종간 통신방식에 대한 호환성이 미비하다. 또한, 주로 수동방식의 검출방식을 준수하고 있다. 이에 본 논문에서는 수질복원시설물 내에 자동화된 센서 네트워크 통합 인터페이스를 위한 센서와 수질감지통합인터페이스간의 효율적인 데이터 전송에 관한 프로토콜 기술에 관해 연구하였다. 센서 네트워크 통합 인터페이스용 모니터링 구현을 통해 이기종간 통신방식으로 원활한 데이터 전송이 가능함을 입증하였다.

• 대한조선학회논문집
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• 제48권6호
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• pp.490-500
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• 2011

The paradigm that ships are navigated by means of analog navigation devices and caption's experiences is shifted to that ships can be navigated by digital and autonomous navigation systems due to the rapid development of electronics and communication technologies. Hence, all systems deployed in a ship are automated and integrated since corresponding ship systems are not individually operated but integrated and managed under common operating system. In this paper, we overview recent research projects targeted for digitally integrated ships (referred to as digital ships), outline IEC 61162 series, specifying digital interface standards for digital ships, and finally present several issues for further improvement of the IEC 61162 series. In addition, we broadly categorize digital ships into three systems consisting of multiple sub-systems, including a navigation system, a power system, and a automation system in the aspect of operation and function. Corresponding interfacing range and method, as well as interface specification and data types of one system in a digital ship are also described according to sub-systems, respectively.

• 한국화재소방학회논문지
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• 제17권4호
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• pp.20-27
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• 2003

화학공장은 위험한 물리 화학적 특성을 가진 많은 물질들을 다루기 때문에 다른 어떤 공장보다 더 사고의 위험성이 크다. 띠라서 화학공장에서의 각 장치에 대한 위험성 평가는 반드시 필요하다. 현재 사용되고 있는 위험성 평가 방법은 정성적 또는 정량적인 방법으로 각각 개별적으로 적용되는데 정성적, 정량적의 통합된 방법을 적용하면 빠르고 쉽게 적용할 수 있다는 정성적인 방법의 장점과 정밀하게 평가될 수 있다는 정량적인 방법의 장점을 모두 갖출 수 있다. 이러한 통합된 위험성 평가방법을 적용하고 자동화한 ASCA(Automated System for Hazard Screening & Analysis)라는 S/W를 개발하여 실제 공정에 적용하였다. 본 연구에서는 방향족 긍정 중 H.T.U(Hydrotreating Unit)에 대하여 ASCA를 적용하여 각 장치의 상대 순위를 알아보고 D-101이라는 저장탱크에서 단열 실패로 온도 상승이 일어난 경우의 장치고장으로 인한 변수 이상과 발생 가능한 사고의 영향을 알아보았다. 이러한 통합 위험성 평가 시스템을 화학공장에 적용하여 봄으로써 사고 시나리오를 세워서 사고에 대한 비상사태를 대처할 수 있는 능력을 키울 수 있으며 사고를 예방할 수 있을 것이다.