• 조명전기설비학회논문지
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• 제12권4호
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• pp.14-19
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• 1998

본 연구의 목적은 저가의 시율레이션용 툴을 개별하는데 있다. 따라서 PLC 프로그랩을 편집하고 모니터할 수 있는 PLC 프로그랩 모듈과, 가상 PLC 시스템과 시뮬레이션 장비를 개발하였다. PLC 모듈과 시뮬레이션 장비는 상호간 링크가 되어 있어서 PLC 프로그랩에 의하여 실시간으로 제어가 가능하고, 마치 실제 설비가 동작이 되는 것과 같은 효과를 얻을 수 있다. 제안한 새로운 툴을 이용하면 모니터상에서 PLC 시스템을 구성하고 가상기계의 응답을 볼 수 있기 때문에 PLC와 기계를 준비할 필요가 없다. 개발된 프로그랭의 타당성올 증명하기 위하여 엘리베이터와 자동 원료 계량 시스템의 PLC 프로그램올 대상으로 실험을 행하였다. 실험결과 개발한 PLC 에율레 이터에 의해 PLC 프로그램 작성 및 가상기계 동작을 통한 PLC프로그램 검증과정이 원할이 이루질 수 있음올 확인하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.188-189
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• 2021

The technology of manufacturing freeform molds with S-LOM based 3D printer has advantages in the production period and the curvature range. However, there is no any support tool about productivity analysis of S-LOM technology because S-LOM technology is early-stage technology. There can be problems about increase of construction time and cost without any decision support tool like productivity analysis models etc. Therefore, in this study, the productivity analysis simulation model for freeform formwork based on S-LOM technology was developed using ARENA software. The process and logic of manufacturing freeform molds can be easily visualized in this model. Futhermore, the resource like labor, equipment and material can be easily optimized with this model. As a result, it can contribute to preventing the increase of construction time and cost in formwork with further productivity analysis.

• 한국정보처리학회논문지
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• 제1권3호
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• pp.299-310
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• 1994

소프트웨어 재공학 툴은 소프트웨어 유지보수 생산성과 그작업의 품질 향상에 기 여한다. 재공학은 프로그램의 구성요소에 대한 기능 변경이 아닌 행위 변경(객체의 이 름과 정의, 재구성프로세스 논리)을 일반적으로 관리한다. 본 논문은 객체 지향 프로 그램언어(C＋＋)로 작성된 원시 코드의 유지 보수를 위한 소프트웨어 재공학 툴인 InMaC＋＋(Interactive Maintenance for C＋＋)의 개발에 대해 서술한다. InMaC＋＋ 는 원시 코드와 다이어그램(설계정보) 형태 모두를 표현할 수 있고 편집 기능이 가능 하며 원시 코드에서 다이어그램으로 다이어그램에서 원시 코드로의 변형이 가능하다. 따라서 이들 변형을 통해 기존 코드의 유지보수와 재공학이 가능하다. 특히 시스템의 검색기능은 그래픽 인터페이스로 구현되었으며 InMaC＋＋는 객체 지향 프로그램의 메 소트, 속성, 클래스등의 구성 요소를 기반한 데이터베이스를 포함 하고 있으며, 이 모 델은 구현과 사용의 편리성과 툴의 구성을 용이하게 하기 위해 4가지의 객체 클래스와 3가지 관계를 정의하고 이들 객체 클래스의 검색을 위해 시스템 제공 단순 질의어가 제공한다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제7권2호
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• pp.91-95
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• 2007

Main goal of web recommendation system is to study how user behavior on a website can be predicted by analyzing web log data which contain the visited web pages. Many researches of the web recommendation system have been studied. To construct web recommendation system, web mining is needed. Especially, web usage analysis of web mining is a tool for recommendation model. In this paper, we propose web recommendation system using grid based support vector machines for improvement of web recommendation system. To verify the performance of our system, we make experiments using the data set from our web server.

• 산업경영시스템학회지
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• 제37권2호
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• pp.55-61
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• 2014

Recently, the manufacturing system is being changed in a mass customization and small quantity batch production. MES is a powerful production management tool supporting production optimization from the process initiation to the final shipment. It is a production management system which plans and executes based on the production data in the shop floor. This study deployed the utilization of production data and web HMI system to process real-time production data through the collection with the shop floor. The developed system was applied to the equipment operating time and other production data could be processed with the real-time. The proposed system and web HMI can be applied for various production systems by using different logic.

• Journal of Contemporary Eastern Asia
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• 제11권2호
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• pp.27-45
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• 2012

Among political scientists, Japan's free trade agreements (FTA) with member nations of the Association of Southeast Asian Nations (ASEAN) has been considered to be a political tool that can compete against China for regional leadership in East Asia. However, this paper demonstrates that Japan's so-called FTA diplomacy towards ASEAN nations serves the broad interests of Japanese actors in both the political and economic sectors. Given the attention to Japanese domestic political issues, it is argued that diplomacy primarily facilitates a need for free trade with ASEAN and ASEAN markets for Japanese corporations to compete in the global economy and for the government to nurture Japan's stagnant economy by assisting these corporations. This work also contends that the unclear function of FTA as an economic good is due to the lack of the government capacity to effectively manage FTA diplomacy. This partly results from the conventional view with regard to Sino-Japanese rivalry.

• 제어로봇시스템학회논문지
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• 제7권1호
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• pp.1218-1225
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• 2001

This paper presents a design procedure for the supervisory controller(SC) of the high-speed train car. The proposed SC manages control logic and scenario of the overall train system, and monitors input/output signals among the sub-controllers in the system, The roles and functions of each sub-control system are defined, and the interfaces among the control systems are developed. Train control system is modeled with automata, and the model is implemented into a program using a computer-aided software engineering(CASE) tool, Object GEODE, The designed SC is verified and evaluated by using simulation. The SC is shown to successfully perform the designed functions without any errors.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 추계종합학술대회 논문집(4)
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• pp.139-142
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• 2000

In this paper, the ADI (Adaptive De-interlacing) algorithm is proposed, which improves visually and subjectively horizontal and vertical edges of the image processed by the ELA(Edge Line-based Average) method. This paper also proposes a VLSI architecture for the proposed algorithm and designed the architecture through the full custom CMOS layout process. The proposed algorithm is verified using C and Matlab and implemented using 0.6$\mu\textrm{m}$ 2-poly 3-metal CMOS standard libraries. For the circuit and logic simulation, Cadence tool is used.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제4권1호
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• pp.119-124
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• 2004

Real data as web log file tend to be incomplete. But we have to find useful knowledge from these for optimal decision. In web log data, many useful things which are hyperlink information and web usages of connected users may be found. The size of web data is too huge to use for effective knowledge discovery. To make matters worse, they are very sparse. We overcome this sparse problem using Markov Chain Monte Carlo method as multiple imputations. This missing value imputation changes spare web data to complete. Our study may be a useful tool for discovering knowledge from data set with sparseness. The more sparseness of data in increased, the better performance of MCMC imputation is good. We verified our work by experiments using UCI machine learning repository data.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2002년도 춘계학술대회 논문집
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• pp.486-490
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• 2002

When the fuzzy controller apply to a real plant, We have not excepted result of a satisfactory control by modeling error and lacking information about an plant. In this case, we have to adjust the scale factors for improvement of the control performance and this method need a lot of time and cost for perform a trial and error. In this paper, we proposed the fuzzy controller with the automatic adjustment of scaling factors. It was improve upon the control performance using a adequate scale factor by fuzzy logic and normalizer. As the results of simulation through the second order plant, we confirmed that the proposed the fuzzy controller within the function of automatic scale get a good response compare with the fuzzy controller within the fixed scale factor.