• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.446-448
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• 2001

We have developed the testing software for KEPCO operators to maintain the small-scale distribution automation system effectively. The testing software is used to monitor the present status, to measure the analog value(voltage, amperage) and to control the switch and FRTU(Feeder Remote Terminal Unit) in order to find out a disabled part of the system. And at the stage of inspection of the switch and FRTU, it can screen the inferior one.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 추계학술대회 논문집
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• pp.621-624
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• 2001

A metal sheath provides a cable with electrostatic screening and a degree of magnetic screening. The presence of a screen on a cable also reduces the induction arising from the high-frequency components of transients caused by power-line switching and also induced transients from lightning strokes; such transient induced voltages are of increasing importance with the increasing use of miniaturized telecommunication equipment with very small thermal capacity. This paper describes electrostatic induction and electromagnetic induction caused by power interference. Also screening factors are proposed.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1692-1693
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• 2007

본 연구는 송수광센서를 이용하여 광막을 형성시키고 미소물체가 광막을 통과할 때 발생되는 미소변위전압을 검출하여 신호처리를 수행함으로서 미소물체의 계수장치에 이용하고 자 하는 센싱시스템의 개발에 관한 내용이다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2004년도 봄 학술발표논문집 Vol.31 No.1 (B)
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• pp.856-858
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• 2004

PDA나 휴대폰 같은 모바일 장치는 데스크 탑 컴퓨터에 비해 상대적으로 작은 스크린을 가진다 웹 문서는 일반적으로 데스크 탑 컴퓨터 스크린을 기준으로 작성되기 때문에 이러한 웹 문서가 모바일 장치에서 표현되기 위해서는 다수의 좌, 우 스크롤을 필요하게 된다. 이는 문서 내용의 독이성을 떨어뜨리며 사용자에게 많은 불편함을 준다. 본 논문에서는 XML로 작성된 웹 문서를 소형 스크린 장치에 적합하도록 변환하는 주석 기반 XML 변환 시스템을 제안한다. XML 변환 시스템은 분할 정보가 기술된 외부 주석을 이용하여 XML 문서를 소형 스크린에 알맞은 다수의 XML 문서로 분할하고, 분할된 XML 문서를 HTML 문서로 변환하는 과정으로 XML 문서 변환을 처리한다.

• 한국컴퓨터정보학회지
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• 제14권1호
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• pp.249-254
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• 2006

본 논문에서는 기존의 사각형을 이용한 충돌처리 기법 알고리즘에 대하여 알아보고, 문제점을 제시하며, 단순한 사각형 충돌의 단점을 보완한, 작은 사각형 단위의 충돌 체크 기법을 제안하고, 실험과 실제 구현한 게임 화면 디자인을 통하여 제안한 알고리즘이 실제 게임에서 적용할 수 있음을 보인다.

• Journal of Biosystems Engineering
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• 제23권3호
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• pp.245-252
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• 1998

The structural characteristics of a small scale rice polisher was analyzed to improve its performance. Spraying characteristic of nozzles used for rice polishing was also analyzed by a machine vision system. The internal pressure of the polishing chamber was measured according to outlet resistance, water spraying, and roller shaft speed. In addition, the performance of the rice polisher was evaluated to improve it in the basis of internal pressure in polishing chamber, whiteness, and broken rice ratio of clean rice according to the operating conditions. Actual nozzle discharge rate and drop size were 125 cc/min and 86~97 ${\mu}{\textrm}{m}$, respectively. In the case of water spraying on rices, the internal pressure showed 4.9~9.8N/$\textrm{cm}^2$ increase. broken rice ratio decreased, and there was no difference in whiteness. The internal pressure inueased up to two times with the increase of the outlet resistance. Also, the pressure at the upper part of screen was one and half times as high as the pressure at the lower part. In the case of water spraying rate of 150 cc/min, the roller shaft speed of 850 rpm resulted in no difference in whiteness and decrease of 0.3% in broken rice ratio, comparing to the roller shaft speed of 950 rpm.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1998년도 하계 학술대회 논문집
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• pp.206-216
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• 1998

The structural characteristics of small scale rice polisher was analyzed to improve its performance. Spraying characteristic of nozzles used for rice polishing was also analyzed by a machine vision system. The internal pressure of the polishing chamber was measured according to outlet resistance, water spraying , and roller shaft speed. In addition , the performance of the rice polisher was evaluated to improve it in the basis of internal pressure in polishing chamber, whiteness , and broken rice ratio of clean rice according to the operating conditions. Actual nozzle discharge rate and drop size were 125cc/min and 86.97㎛, respectively. In the case of water spraying on rices, the internal pressure showed 4.9-9.8N/㎠ increase, broken rice ration decreased , and there was no difference in whiteness . The internal pressure increased up to two time with the increase of the outlet resistance. Also, the pressure at the upper part of screen was one and half times as high as the pressure at the lower part. In the case of water spraying rate of 150 cc/min, the roller shaft speed of 850 rpm resulted in no difference in whiteness and decrease of 0.3%in broken rice ratio, comparing to the roller shaft speed of 950 rpm.

• Journal of Advanced Marine Engineering and Technology
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• 제39권8호
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• pp.863-869
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• 2015

This study analyzed the offshore plant industry and related regulations such as ISO, IEC, and Norsok Standards to develop an integrated network management system (INMS) capable of both on-site and remote management and configuration of IP-based network equipment in offshore plants. The INMS was designed based on actual specifications and POS plans, and a plan of management was verified through an offshore plant engineering company. Various modules such as PAGA interface modules, CCTV, IP-PBX, and HF-radio communication modules were developed for system implementation. Protocol and data design and screen design were followed by framework development and introduction of the automatic satellite communication function.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2889-2891
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• 2000

We developed the training simulator for KEPCO operators to maintain small-scale distribution automation system effectively. The training simulator has the same screen form and operating environments in comparison with using system in field. It is to be wished that the operating techniques of KEPCO operators will progress to solve the fear of system operation and to training simulations of distribution conditions again and again.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 D
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• pp.2489-2491
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• 2003

In this study, we implement the laser pattern controller using function generator IC. Overall system consists of : (1) laser excitation circuit and laser tube, (2) two small mirrors to reflect laser beam on the screen, (3) two small motors for X, Y axis enabling each attached mirrors to rotate, (4) controller for motor control and user interface, (5) system power. We explain the architecture of the system and required theory to implement the system. Finally, experimental results are illustrated to show the performance of the system.