• Journal of Astronomy and Space Sciences
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• 제30권4호
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• pp.327-334
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• 2013

The purpose of this study is to develop an observation program for obtaining effective flat images that are necessary for photometric observation. The development of the program was achieved by improving the existing method for obtaining twilight flat images. The existing method for obtaining twilight flat images acquires flat images by observing the sky light after sunset or light before sunrise. The decision of when to observe flat images at each night is solely dependent on the judgment of an observer, and thus the obtained flat images for particular nights may not be clean. Especially, in the case of the observatories where an automated observation system is in operation, there is a difficulty that an observer should pay attention during sunrise and sunset in order to obtain flat images. In this study, a computer program is developed to improve this inconvenience and to efficiently perform photometric observation in the observatories where an automated observation system is applied. This program can obtain flat images by calculating the time for obtaining flat images automatically and the exposure time using a numerically calculated function. When obtaining twilight flat images at dusk and at dawn, the developed program performs automated observation and provides effective flat images by acquiring appropriate exposure time considering the sunrise and sunset times that vary depending on the day of observation. The code for performing this task was added to Obs Tool II (Yoon et al. 2006), which is the automated observation system of the Chungbuk National University Observatory, and the usefulness of the developed program was examined by performing an actual automated observation. If this program is applied to other observatories where automated observation is in operation, it is expected that stable and high-quality flat images could be obtained, which can be used for the pre-processing of photometric observation data.

• 한국컴퓨터정보학회논문지
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• 제28권1호
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• pp.179-187
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• 2023

이 연구의 목적은 온라인 기반 아두이노 프로그래밍 체험 프로그램을 개발하고 적용하는 데 있다. 이 연구에서는 ADDIE 모형과 Lee의 모형에서 제시된 내용을 바탕으로 프로그램을 개발하고 이를 적용하였다. 이 연구의 결과는 다음과 같다. 첫째, 본 연구에서는 자유학기제 학생들을 대상으로 온라인상에서 적용할 수 있는 교육 프로그램 2종을 개발하였다. 둘째, 본 연구에서 개발된 프로그램의 교수학습자료는 강의에서 사용할 실습 재료, 교수용 사이트, 동영상 강의 콘텐츠 등이었다. 셋째, 개발된 프로그램은 학생이 등교한 상황과 등교하지 않은 상황에서 총 3회 적용되었다. 넷째, 프로그램의 만족도를 분석한 결과 학생들은 본 개발 프로그램에 대해 만족하고 있음을 확인하였다. 본 연구의 내용은 도서 산간 지역과 같이 강사의 접근이 쉽지 않은 장소에서 온라인 기반의 체험 활동을 기획하는 교수자들이 활용할 수 있는 참고 자료가 될 것이다.

• 문화기술의 융합
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• 제9권1호
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• pp.119-128
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• 2023

본 연구는 플로러닝을 기반으로 자연에 대한 인식과 활동 방법을 익히고 느낄 수 있는 자연체험활동 프로그램을 개발하여 자연체험활동을 통한 대안적 수업 모델을 제시하기 위한 목적으로 수행되었다. 연구의 목적을 달성하기 위하여 자연과 만나기, 자연 탐구하기, 자연과 온몸으로 놀기, 자연에서 느낀 감동 나누기의 네 단계가 순환적으로 이루어지는 플로러닝 자연체험활동을 기저로 하여 ADDlE 교수설계 모형의 각 단계별 주요 절차를 바탕으로 자연체험활동 프로그램 개발하였다. 연구 과정을 통하여 자연체험활동 프로그램의 각 단계별 활동 및 유의사항에 대해 제시하였으며, 개발된 프로그램을 바탕으로 주요 교육적 시사점을 논의하였다. 연구를 통해 개발된 자연체험활동 프로그램은 교사에게 자연체험활동 방법에 대한 인식의 전환과 더불어 자연체험활동에 대한 기본적인 방향을 제시할 수 있고, 유아는 자연체험활동 프로그램을 통하여 자연을 자유롭게 느끼고 경험하며 스스로 지식을 구성하는 학습자가 될 수 있을 것으로 기대한다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.524-529
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• 2004

In this paper, We described the method which developed the optimal control system for air separation unit to change production rates frequently and rapidly. Control models of the process were developed from actual plant data using subspace identification method which is developed by many researchers in resent years. The model consist of a series connection of linear dynamic block and static nonlinear block (Wiener model). The model is controlled by model based predictive controller. In MPC the input is calculated by on-line optimization of a performance index based on predictions by the model, subject to possible constraints. To calculate the optimal the performance index, conditions are expressed by LMI(Linear Matrix Inequalities).In order to access at the Bailey DCS system, we applied the OPC server and developed the Client program. The OPC sever is a device which can access Bailey DCS system.The Client program is developed based on the Matlab language for easy calculation,data simulation and data logging. Using this program, we can apply the optimal input to the DCS system at real time.

• 한국정보통신학회논문지
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• 제22권3호
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• pp.499-505
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• 2018

전 세계적으로 해운물류 안전 보안체계가 강화됨에 따라 국가물류보안 체계 구축을 위한 해운물류안전 보안 핵심기술 개발이 이루어지고 있다. 또한 미국에서 2018년 시행예정인 컨테이너 사전 100% 전수검사에 대응하기 위한 컨테이너 검색기의 핵심구성 요소인 Array 검출 시스템의 국산화 개발이 필요하다. 본 논문에서는 현재 자체 개발한 Test Digital 신호처리 Board를 가지고 TI-RTOS(Texas Instruments - Real Time Operating System)를 이용하여 개발한 Test Software Program을 제안한다. M4 MCU를 기반으로 GPIO, SRAM, TCP/IP와 SDcard등을 테스트 할 수 있는 프로그램을 개발했다. 또한 Array 검출 system 중 자체 개발한 Digital Signal Processing Board에 대한 연구를 제안하고자 한다. M4 MCU를 테스트 할 수 있는 테스트보드를 개발했고 FPGA와 MCU가 결합된 통한 X-RAY 디지털 신호처리 보드를 개발했다.

• 임상간호연구
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• 제26권2호
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• pp.186-197
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• 2020

Purpose: The purpose of this study was to develop a program for reinforcing the resilience of new nurses and relation-oriented organizational culture. Methods: An Intervention Research (IR) model was used to develop a program. Literature review, focus group interviews with nurses and need surveys were conducted from August to December 2018. Based on the results of the investigation, the researcher developed the content of a program. The program was revised by nurse managers for the content validation. Results: According to the results of the need surveys, 58.8% of the participants thought relation-oriented culture was the most ideal, and 61.8% of the participants wanted to participate in a program for organizational culture improvement. In the focus group interview, not only new nurses but also wards and nursing organizations should be a target subject of the program. Reinforcement of resilience and relation (3R) program was developed as a one-year course, which includes a 'mentor-mentee' program and a 'thanks' program. Conclusion: It would contribute to improving the resilience of new nurses and creating a relation-oriented organizational culture by 3R program. The 3R program could play a role as expanded program from an existing pragmatic short-term training program for improving the competencies or communication skills of new nurses.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2000년도 봄 학술발표회논문집
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• pp.195-204
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• 2000

The finite element analysis (FEA) is widely used in modern structural dynamics because the performance of structure can be predicted in early stage. However, due to the difficulty in determination of various uncertain parameters, it is not easy to obtain a reliable finite element model. To overcome these difficulties, a updating program of FE model is developed by consisting of pretest, correlation and update. In correlation, it calculates modal assurance criteria, cross orthogonality, mixed orthogonality and coordinate modal assurance criteria. For the model updating, the continuum sensitivity analysis and design optimization tool(DOT) are used. The SENSUP program is developed for model updating giving physical parameter sensitivity. The developed program is applied to practical examples such as the BLDC spindle motor of HDD, and upper housing of induction motor. And the sensor placement for the square plate is compared using several methods.

• 대한기계학회논문집A
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• 제24권1호
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• pp.94-102
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• 2000

A computer program for three dimensional dynamic analysis of a mount system composed of rigid or flexible bodies and mount elements is developed. Cartesian coordinates and Euler parameters are used to specify the positions and orientations of the bodies. The equations of motion are formulated using Langrange equation and Langrange multiplier technique. The developed program includes routine, for inclined mount elements, several kinds of driving constrains, and external forces. The Static equilibrium analysis routine is also developed using iterative method.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2002년도 학술대회논문집
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• pp.239-242
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• 2002

With existing illumination rendering system being used in domestic, internationally developed common programs are taking over the market more than 90%. However, since the programs are established with DB designed to be most suitable for their own products, accuracy in analysis and visualized image are hardly reliable. This raises the necessities of establishing DB for domestic developed products. A method of establishing artificial luminair DB, which was studied on DB establishment in consideration of optical characteristics of domestic products with using RADIANCE program was presented in this study, and it is considered as the program of simulating light movement most accurately among all rendering programs developed so far.

• 한국정밀공학회지
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• 제9권1호
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• pp.44-52
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• 1992

A post-processor is developed to be effectively usable in the personal computer. 3-dimensional controur lines are shown on the surface of the finite element model and also on the 3-dimensional cutting plane, using the function linearly interpolated onto the triangular elements which are constructed on the surface or sectional polygons. And these polygons are originated from the finite element model, 3-dimensional model is projected on the plane with hidden line removal by comparision technique[6]. The graphic data file is used to increase the protability of the program. It is easy to use in the other computer system if the graphic routine adopted that computer system is developed. The developed program has wide applications in 3-dimensional finite element analysis.