• Title/Summary/Keyword: EOL

Search Result 212, Processing Time 0.024 seconds

Design Clean Room of Controled Temperature and Humidity using ATmega128 (ATmega128를 이용한 온.습도 자동제어 모형 제작)

  • Kim, Min-Gu;Kuh, Tae-Hoi;Kim, Young-Min;Shim, Saero-Eol;Soh, Dea-Wha
    • Journal of the Speleological Society of Korea
    • /
    • no.77
    • /
    • pp.59-65
    • /
    • 2007
  • Nowaday, our life is closely related to temperature and the humidity. To control the temperature and the humidity have pursued the comfort environment. We develop that form ware is controled temperature and humidity that used the ATmega128. We embody home-automation system to use the ATmega128, temperature sensor, LCD, relay device and peltier device.

A Power Control Method of Singe-Phase Inverter Systems Considering Grid Impedance (계통 임피던스를 고려한 단상 인버터 시스템의 전력 제어 방법)

  • Kim, Eun-Seok;Park, Han-Eol;Song, Joong-Ho
    • Proceedings of the KIPE Conference
    • /
    • 2008.06a
    • /
    • pp.253-255
    • /
    • 2008
  • 상태 공간 평균화법을 이용한 단상 인버터의 동적 모델링을 통해 제어 특성을 해석하고, 계통 연계시 인버터 출력 전압, 계통 임피던스, 계통 전압의 관계를 분석하여 시스템의 유효 전력과 무효 전력 흐름의 특성을 파악 하였다. 본 논문에서는 DQ 기반 전력제어 방법을 제안하였고 이를 근거로 전력 제어기를 설계하였다. 시뮬레이션을 통해 제안한 전력 제어 알고리즘의 타당성과 유용성을 검증하였다.

  • PDF

A Synchronous-Reference-Frame-Based Control of Single-Phase UPQC for Improving Power Quality of AC Electrified Railway Systems (전기철도 급전시스템의 전기품질 향상을 위한 동기좌표계를 이용한 단상 UPQC의 제어)

  • Park, Han-Eol;Song, Joong-Ho
    • Proceedings of the KSR Conference
    • /
    • 2009.05a
    • /
    • pp.1951-1958
    • /
    • 2009
  • This paper presents a synchronous-rotating-frame-based control of single-phase UPQC(Unified Power Quality Conditioner) to improve power quality in ac electrified railway systems. The simulation results show that the UPQC can compensate the harmonic supply voltages, the harmonic load currents, and the reactive power in electrified railway systems. Validity of the proposed UPQC control method based on the synchronous rotating frame is illustrated through the simulation results.

  • PDF

중성자잡음신호를 이용한 영광 3,4호기 원자로내부구조물의 진동 분석

  • 조상진;성계용;김봉현
    • Proceedings of the Korean Nuclear Society Conference
    • /
    • 1996.11b
    • /
    • pp.703-710
    • /
    • 1996
  • 본 연구에서는 영광 3,4호기 원자로의 Core Support Barrel 거동을 중성자 잡음해석을 이용하여 분석하였다. 분석 방법은 원자로 노외계측기에서 취득한 교류 성분의 중성자 잡음 신호를 주파수분석하므로서 얻어진 PSD, Phase, Coherence 등을 이용하였다. 영광 3,4호기의 1 주기 동안의 신호를 분석결과, CSB의 Beam Mode 주파수는 영광 3호기의 경우 BOL, MOL, EOL에서 각각 7.75∼8.5Hz, 7.75Hz, 7.25∼7.75Hz로 나타났고, 영광 4호기 BOL에서 8.5∼8.75Hz 임이 도출되었다. 본연구 결과는 한국형 원전의 원자로 내부구조물의 진동 특성을 파악하고 운전중 CSB건전성 진단을 위한 기초 자료로 활용할 수 있다.

  • PDF

A Study on the Improvement of Virtual Fitting by Natural Wrinkle Expression (자연스러운 주름표현을 통한 가상피팅 개선방안)

  • Seung-Min Jung;Hyun-Woo Jung;Han-Eol Choi
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2023.05a
    • /
    • pp.515-516
    • /
    • 2023
  • 가상 피팅은 옷의 구매에 긍정적인 영향을 미치는 요소이다. 하지만 아직까지 여러 문제가 있어서 상용화가 되기 힘든 현실이다. 이러한 문제들 중에서 우리가 초점을 맞춘 것은 자연스러운 주름의 표현이다. 시간적 특성을 이용해 옷의 움직임을 자연스럽게 하고, 옷의 데이터를 얻어서 그 데이터로 옷의 주름표현과 텍스처 표현을 자연스럽게 할 수 있을 것이다.

First Record of the Annular Sole, Brachirus annularis(Soleidae, Pleuronectiformes) from Korea (한국산 납서대과 어류 1미기록종, Brachirus annularis)

  • Kim, Maeng Jin;Koh, Soo Jin;Yoon, Byoung Sun;Kim, Sung-Tae;Song, Choon Bok
    • Korean Journal of Ichthyology
    • /
    • v.31 no.3
    • /
    • pp.178-182
    • /
    • 2019
  • This is the first report of Brachirus annularis (Pleuronectiformes: Soleidae) from Korea. A specimen of B. annularis (229.0 mm standard length) was firstly collected by drift gill net at a fishing ground locating between Jejudo and Geomundo Islands, the southern coast of Korea on 31 March, 2019. This species was characterized by having five large, deep colored patches on the ocular side of body, each patch outlined by dark brown ring, united dorsal and anal fins jointed with caudal fin, and short pectoral fin. We add this species to the Korean fish fauna and propose its new Korean names, "Eol-luk-seo-dae-sok" and "Eol-luk-seo-dae" for the genus and species, respectively.

Analysis of the aromatic components of the forest bathing (삼림욕 향기 성분 분석)

  • 노택우;윤석신
    • Journal of the Society of Cosmetic Scientists of Korea
    • /
    • v.17 no.1
    • /
    • pp.29-38
    • /
    • 1991
  • As the suitable place of the forest bathing, Two places of the needle-leaf trees, which are located in the Oh-Saek mineral spring near place from the Sorak mountain, were selected. And then, Headspace gas trapping apparatus were setted in that two places and the aromatic components of the forest were adsorbed by Tenax-TA column for 24 hours. And Tenax-TA column were analyzed by the GC SE GC-MS. The analyzed components were found to contain up to between 70-80% of pollutants, which are Toluene, Methyl Chloride, Hexane, p-Xylene, Benzene, ... etc. On the other hand, the aromatic components of the forest, which give aromatheraphitical effectness, are as follow: alpha-Pinene, Limonene, 1, 8-Cin-eol, Benzaldehyde, . . . etc.

  • PDF

A study on the design of a parking guidance using ATmega8535 (ATmega8535를 이용한 주차 유도 시스템)

  • Kim, Min-Gu;Gu, Tae-Hoi;Kim, Young-Min;Kim, Han-Seob;Shim, Saero-Eol;Soh, Dea-Wha
    • Journal of the Speleological Society of Korea
    • /
    • no.77
    • /
    • pp.67-72
    • /
    • 2007
  • ATMega8535 Controller is the ideal solution for use as a standard controller in many applications. The small compact size combined with easy program updates and modifications, make it ideal for use in machinery and control systems, such as alarms, card readers, real-time monitoring applications and much more. This board is ideal as the brains of your robot or at the center of your home-monitoring system. Today, most drivers must use a parking place day by day. Therefore we make time shorten. Using above-mentioned ATmega8535, a sensor of infrared rays, led and lcd, we will make a parking system which is able to display parking situation and lead a car at the best position of Parking easily and quickly. Trying this project, we will be more closer to practical application of electronic engineering bit by bit.

A case study on patient with diplopia caused by stroke (뇌경색(腦梗塞)으로 인한 복시(複視) 증상 치료(治療) 1례(例)에 대한 증례보고(證例報告))

  • Lee, Han-Eol;Ahn, Taek-Won
    • Journal of Haehwa Medicine
    • /
    • v.16 no.1
    • /
    • pp.199-206
    • /
    • 2007
  • Objective : The purpose of this study is to report treated case about patient with diplopia caused by stroke. Methods : The improvement of diplopia was observed as he was treated with acupuncture therapy and herb medicine named Bo-gan-san(保肝散). Results : Diplopia improved and disappeared gradually with acupuncture therapy and herb medicine named Bo-gan-san(保肝散). The patient was discharged with favorable recovery. Conclusion : In traditional Korean medicine, diplopia is caused by disorder of JungKi(精氣), intrusion of PoongSa(風邪) into Neoi(腦), and hollowness of Gan(肝), Shin(腎). Treating it is by expelling PoongSa(風邪) or strengthening Gan(肝), Shin(腎). The patient was diagnosed as cerebral infarction according to Brain MRI. Diplopia was improved after acupunctural therapy and intaking Bo-gan-san(保肝散), herbal prescription selected from DongYiBoGam(東醫寶鑑).

  • PDF