• Title/Summary/Keyword: domestic animals

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A Study on the Signal Transmission of Electronic Identification System for Automatic Breeding Management of Domestic Animals (가축의 사양관리 자동화를 위한 전자 개체인식장치의 신호전송에 관한 연구)

  • 한병성
    • Journal of Biosystems Engineering
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    • v.24 no.1
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    • pp.75-80
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    • 1999

  • Signal separation and transmission are essential for automatic breeding management of domestic animals. Electronic identification system could transmit the signal of an individual within a defined range to a personal computer by an electromagnetic signal recognition method. Signals for individual recognition were originated by controlling 12 tri-state pins of IC(PT2262) in a transmitter. PT 2262 can generate 4,096 codes. These encoded signals were modulated and transmitted with wireless lines from the transmitter. Then they were demodulated in a receiver, and the signals were transmitted to the micro-processor through an interface and were identified in a PC.

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Study on the Water and Environmntal Pollution Sources in the Agricultural Reservoir-Watershed Areas (농업용 저수지수역의 수질환경 오염원 조사 분석)

  • 서승덕;김동훈;윤학기
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.36 no.3
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    • pp.100-112
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    • 1994

  • This tudy is to survey and analysis the water quality phase of Agricultural reservoirs through the case study of 18 reservoirs in Kyungpook Province in preparation for prevention disasters from the environmental hazards such as water pollutions. In these cases, the most hazardous pollution acts were Domestic animals excrements firstly, Human living wastge water secondly, Tourist resort sewage and Fertilize waste etc. in regular sequences. In the analysed results, pH, EC, BOD, DO, Cu, Ph, Cd were less than standard values recommended by the Environmental Authority and so they were estimated in scope of the safety value respectively. But few of factors being gradually closed with the hazardous point in the few places. At present, the hazardous environmental acts originated from the Domestic animals ex-crements, Human living waste water and Fertilize waste etc. in case the agricultural reservoirs, have to strongly be improved much better than before and prepared safety conditions for the rural living and agricultural life sciences.

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