• 연구논문집
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• 통권33호
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• pp.27-38
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• 2003

The object-oriented programming languages are widely used in the modern software engineering. The procedural type FEM codes are still used because it is very hard and cost consuming job to re-code them into object-oriented programs. In this study, a FEM program was newly designed and coded with C++, an object-oriented language. Also a special programming technique, auto-loading technique was developed for open structured program, with which the extension and maintenance can be carried out easily. For example, the additions of element libraries to an existence FEM program do not require any modifications of the program.

• 한국정보통신학회논문지
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• 제18권3호
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• pp.742-748
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• 2014

객체 지향 시각 프로그래밍 교육에 대한 연구는 학생들이 프로그램 개발을 진행하는 과정 혹은 프로그래밍을 교수하는 방법론과 프로그램 개발을 위한 적합성 분석 및 설계 방법론을 찾는 것과 관련된다. 학생들이 프로그래밍 교육에서 학습에 어려움을 겪고 있는 객체 지향 프로그램 개발 능력을 향상시킬 수 있는 교육 방법으로 이 논문에서는 컴퓨터 프로그래밍 교육에서 객체 지향 시각 프로그래밍 교육을 적용하고 평가하기 위한 평가 지표를 개발하고, Alice 프로그래밍을 통한 시각 프로그래밍 교육 방법론과 교과과정을 도입한다. 이 논문에서 제시된 시각 프로그래밍 교육의 평가 지표는 시각 프로그래밍 언어/도구를 사용할 때 학생들의 프로그래밍 교육에 대한 적합성을 측정하고 분석하여 학생들의 이해력, 추상화 능력, 프로그램 구현 능력과 학생들의 수준별 적합성을 측정하고 분석한다.

• 대한전기학회논문지
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• 제45권3호
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• pp.329-334
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• 1996

Power system is becoming more and more complex and large Existing procedural programming technique can't cope with software flexibility and maintenance problems. So, Object-Oriented Programming (OOP) is increasingly used to solve these problems. OOP in power system analysis field has been greatly developed. This paper applies OOP in power flow analysis, and presents new algorithm which uses only a Jacobian to solve mismatch equations, and introduces a new sparse matrix storage method which is different from existing method. (author). 11 refs., 12 figs., 3 tabs.

• 한국통신학회논문지
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• 제27권10A호
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• pp.990-999
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• 2002

The object-oriented(OO) distributed real-time(RT) programming movement started in 1990's and is growing rapidly at this turn of the century. Distributed real-time simulation is a field in its infancy but it is bounded to receive steadily growing recognition for its importance and wide applicability. The scheme is called the distributed time-triggered simulation scheme which is conceptually simple and easy to use but widely applicable. A new generation object oriented(OO) RT programming scheme is called the time-triggered message triggered object(TMO) programming scheme and it is used to make specific illustrations of the issues. The TMO structuring scheme is a general-style components structuring scheme and supports design of all types of component including hard real time objects and non real time objects within one general structure.

• 대한전기학회논문지:전력기술부문A
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• 제55권10호
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• pp.418-425
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• 2006

This paper describes a simulation package for a power system using objected-oriented programming. The package includes four parts which are a power flow, a short circuit calculation, a transient simulation program, and an economic dispatch. The graphical user interface(GUI) is designed as a common platform which allows the user to create one-line diagrams of systems, specify components of power systems as well as simulation parameters, and view the output produced by the chosen application. The paper presents the data structure of the functional modules such as the draw module, power system data module, the power system simulation module, and the utility module using the object oriented programming. This package may be useful for educational and research purposes.

• 전산구조공학
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• 제5권4호
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• pp.125-132
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• 1992

본 연구에서는 C++언어를 이용한 객체지향 프로그래밍 기법으로 매트릭스 연산과 평면뼈대 구조물의 해석이 가능한 PC용 구조해석 프로그램을 개발하였다. 객체지향 프로그래밍에서의 주요 개념인 객체, 클래스, 처리방식, 상속성 및 다형성을 도식화하여 설명하였으며, 매트릭스 연산과 평면뼈대 구조해석에 대한 예제 해석 결과는 이 프로그램의 효율성과 타당성을 보여 주었다. 따라서 본 연구는 객체지향 프로그래밍기법의 특징인 프로그램의 확장성과 재사용성 및 다양한 GUI의 구현가능성을 이용하여 앞으로의 객체지향 유한요소 프로그램 개발에 활용될 것이다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1992년도 가을 학술발표회 논문집
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• pp.105-111
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• 1992

A computer program for matrix structural analysis by object-oriented programming technique using $C^{++}$ language has been developed. Object, class, method and inheritance which are used in object-oriented programming are illustrated using a graphical representation. The matrix operations and the structural analysis by matrix displacement method were satisfactorily performed by the proposed program. Numerical tests demonstrate that this proposed program can be widely used for the matrix structural analysis for personal computers.s.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.484-487
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• 1997

In this paper a simulation program for the powertrain control of a gasoline engine with automatic transmission is presented, The object-oriented programming approach has been pursued, and MATLAB/ SIMULINK was adopted for its environment. The purpose of the paper is to demonstrate the programmability of a control system in the object-oriented fashion so that the transferability of the objects is guaranteed. The program developed in the paper was applied to a gasoline engine and the mathematical models used in the paper were just adopted from the literature. It is shown that the simulation results and real experimental results coincide well. Therefore, it is expected that the program or objects made in the paper are useful for the automotive engineers when they design a new engine/transmission system or modify a part of existing system.

• 대한전기학회논문지:전력기술부문A
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• 제50권4호
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• pp.166-171
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• 2001

Object-oriented programming is a solution for problems in the development, maintenance, and update of large software such as power system analysis software. However, many applications in the electrical industry critically depend on the computational efficiency of the implementation. In order to be flexible and reduce the computation time, this paper represents an efficient method for constructing a Jacobian matrix and for factorizing it, and designs the class hierarchy for power system. This method is applied to four different power systems for load flow calculation. The performance of the object-oriented program developed in C++ is assessed in computer simulation.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -3
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• pp.1843-1846
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• 2002

The object-oriented(OO) distributed real- time(RT) programming movement started in 1990’s and is growing rapidly at this turn of the century Distributed real-time simulation is a field in its infancy but it is bounded to receive steadily growing recognition for its importance and wide applicability. The scheme is called the distributed time-triggered simulation scheme which is conceptually simple and easy to use but widely applicable. A new generation object oriented(00) RT programming scheme is called the time-triggered message triggered object(TMO) programming scheme and it is used to make specific illustrations of the issues. The TMO structuring scheme is a general-style components structuring scheme and supports design of all types of component including hard real time 1 objects and non real time objects within one general structure.