• 농촌지도와개발
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• 제4권1호
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• pp.97-120
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• 1997

This study intends to develop a computer software for an efficient swineherd production and management. Current softwares are concerned on the sow management and ignore the actual farm environment. This study focuses on the farm environment in developing the software and covers the production management financial management, marketing management, and business planning for swineherd farm. The FSR(Farming Systems Research) analysis and interview survey aye applied to collect the data for the system planning, farmer's demand and analysis on the system, system design and program development. The systems are designed to meet the needs for the progressive swineherd farmers. Visual FoxPro 5.1 is used to develop the system. The developed system includes pig farm financial records keeping and management, pig farm production management program, pig farm marketing management program, and pig farm business diagnosis and planning program to meet the scope of the study. The weekly maintenance records and financial records are adopted for the input interface since most of farmers use their computer less than 5 hours a week. Pulldown Menu systems are adopted and designed for easy use by structuring to meet the pig farm and system demands. The manu system allocates the input-output screen based on the sectors, scopes, users, frequencies, importances, and the usages of the information. The GUI(Graphic User Interface) method is used to develop input-output screens for easy use. Backward Chaining mechanism fo the Expert System is used in the diagnosis of the pig farm management and the Systems Simulators Approach is used in the pig farm management planning.

• 정보교육학회논문지
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• 제23권6호
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• pp.521-528
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• 2019

본 연구의 목적은 초등정보교육에서 컴퓨팅 사고를 신장시키기 위한 SW교육 콘텐츠를 설계하고 개발하는 것이다. SW교육 프로그램은 지식, 기능, 태도의 세 개 영역으로 나누었고, 컴퓨팅사고의 추상화, 자동화, 가치화로 연계하여 교육 프로그램을 개발하였다. 콘텐츠는 3개의 레벨로 나누고, 각각 16차시로 구성 하였다. 개발한 교육 프로그램에 대해 전문가 19인을 대상으로 내용 타당도를 실시한 결과 타당성이 높게 나타났다. 본 연구가 SW교육을 실시하는데 있어 컴퓨팅 사고를 신장하는데 도움이 되기를 바란다.

• 컴퓨터교육학회논문지
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• 제12권6호
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• pp.33-39
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• 2009

알고리즘의 추상적 속성은 학습자의 동기와 학습 증진을 저해하는 요소로 작용할 수 있다. 따라서 학습자의 내적 인지 부담을 감소시키고 동기를 유발하기 위한 교수 학습 방법에 관한 연구가 필요하다. 본 연구에서는 전문계 고등학생들의 동기와 성취수준 향상을 위해 놀이를 통한 알고리즘 교수 학습 프로그램을 개발하였다. 개발한 프로그램을 적용한 결과, 놀이 중심 알고리즘 학습 프로그램을 수행한 집단이 전통적인 알고리즘 학습을 수행한 집단에 비해 학습동기와 학업성취 면에서 유의한 차이를 나타냈다. 이는 놀이와 같은 구체적인 활동 수행이 추상적이고 어려운 개념 학습에 긍정적인 영향을 준 것으로 해석할 수 있다.

• 인터넷정보학회논문지
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• 제20권5호
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• pp.49-55
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• 2019

Organizations design and operate business process models to achieve their goals efficiently and systematically. With the advancement of IT technology, the number of items that computer systems can participate in and the process becomes huge and complicated. This phenomenon created a more complex and subdivide flow of business process.The process instances that contain workcase and events are larger and have more data. This is an essential resource for process mining and is used directly in model discovery, analysis, and improvement of processes. This event log is getting bigger and broader, which leads to problems such as capacity management and I / O load in management of existing row level program or management through a relational database. In this paper, as the event log becomes big data, we have found the problem of management limit based on the existing original file or relational database. Design and apply schemes to archive and analyze large event logs through Hadoop, an open source distributed file system, and HBase, a NoSQL database system.

• 한국태양에너지학회 논문집
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• 제28권6호
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• pp.64-69
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• 2008

In this study the thermal performance and economic analysis program of solar heating system for district heating was developed. This program, named SOLAN-DHS and based on TRNSYS, consisted of four modules like as user's interface for system input/output, library, and utilities and a calculating engine. SOLAN-DHS simplifies user's input data through the database of most system engineering data including weather data of 17 areas in Korea. Five different types of solar systems which can be applicable to district heating system were presented in this program. Due to the user-friendly layout, all design parameters can be changed quickly and easily for the influence on system efficiency. The reliability of SOLAN-DHS was finally verified by the experiments.

• 한국정보처리학회논문지
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• 제3권3호
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• pp.460-470
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• 1996

본 논문은 컴퓨터 바둑을 구현하기 위한 프로그래밍 기법을 제시한다. 컴퓨터 바둑은 바둑의 여러 규칙을 가지고 스스로 국면의 형세를 판단한 후, 다음 놓을 자리 를 정확히 계산할 수 있어야 한다. 주요 설계 원칙은 패턴 매칭, 알파-베타 탐색, 영향력 계산 등의 휴리스므틱한 요소를 조합하는 것이다.본 논문에서는 컴퓨터 바둑을 연구하는 사람들의 접근 방법과 그들의 연구결과를 소개하고 컴퓨터 바둑을 구현하기 위한 자료 구조와 알고리즘을 제안하였다.

• 한국컴퓨터정보학회논문지
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• 제20권2호
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• pp.231-239
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• 2015

본 연구는 교사의 전문 지식 모형인 TPACK을 예비 교사 교육 프로그램에 적용하고, 그 결과를 분석한 것이다. 이를 위해 테크놀로지 지식을 향상시킬 수 있는 강의를 설계하여 적용하였고, 이를 수강한 예비교사 A 그룹과 기존의 ICT 활용 강의를 수강한 B 그룹을 대상으로 설문을 실시하였다. 두 집단의 설문 결과를 통계 분석한 결과, 본 연구의 강의를 수강한 예비교사에게서 TPACK의 구성 요소인 테크놀로지 지식, 테크놀로지 내용지식, 테크놀로지 교수지식, 테크놀로지 교수내용지식이 향상된 것을 확인할 수 있었다. 또한 상관관계 분석에서도 7개의 세부 지식들이 모두 유의미한 정적 상관관계를 나타내었다. 이를 통해 TPACK 모형의 테크놀로지 지식이 예비교사 교육 프로그램에 적용되어야 함을 제안하였다.

• 소성∙가공
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• 제7권3호
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• pp.260-273
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• 1998

A new blank design method is proposed to predict the optimum initial blank shape in the sheet metal forming process. The rollback method for blank shape design takes the difference between final deformed shaped and target contour shape into account. Based on the method a computer program composed of blank design module FE-analysis program and mesh generation module is developed. The rollback method is applied to square cup drawing process with the flange of unifiorm size around its periphery to confirm its validity. The optimum initial blank shape is obtained from an arbitrary square blank after three modification. Good agreements are recognized between the numerical results and the published results for initial blank shape and thickness strain distribution. The optimum blank shape for two parts of automobile sub-frame is designed, The thickness distribution and the level of punch load is improved. Also the method is applied to design the weld line in the tailor-welded blank. It is concluded that the rollback method is an effective and convenient method for an optimum blank shape design.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1998년도 춘계학술대회논문집
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• pp.185-195
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• 1998

A new blank design method is proposed to predict the optimum initial blank shape in the sheet metal forming process. The rollback method for blank shape design takes the difference between final deformed shape and target contour shape into account. Based on the method, a computer program composed of blank design module, FE-analysis program and mesh generation module is developed. The rollback method is applied to square cup drawing process with the flange of unifiorm size around its periphery to confirm its validity. The optimum initial blank shape is obtained from an arbitrary square blank after three modifications. Good agreements are recognized between the numerical results and the published results for initial blank shape and thickness strain distribution. The optimum blank shape for two parts of automobile sub-frame is designed. The thickness distribution and the level of punch load is improved. Also, the method is applied to design the weld line in the tailor-welded blank. It is concluded that the rollback method is an effective and convenient method for an optimum blank shape design.

• 대한기계학회논문집
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• 제17권8호
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• pp.1883-1897
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• 1993

Interactive computer-aided analysis of mechanical systems has recently been undergoing an evolution due to highly efficient computer graphics. The industrial implementation of state-of-the-art analytical developments in mechanisms has been facilitated by computer-aided design packages because these rigid-body mechanism analysis programs dramatically reduce the time required for linkage design. This paper proposes a component modular approach to computeraided kinematic motion analysis for general planar multiloop mechanisms. Most multiloop mechanisms can be decomposed into serveral components. The kinematic properties (position, velocity, and acceleration) of every node can then be determined from the kinematic analysis of the corresponding component modules by a closed-form solution procedure. In this paper, 8 types of modules are defined and formulations for kinematic analysis of the component modules are derived. Then a computer-aided kinematic analysis program is developed using the proposed approach and the solution procedure of an example shows the effectiveness and accuracy on the approach.