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인공지능 컨트롤러를 이용한 전기 시퀀스 제어 안전 모듈 회로 개발 (Development of Electrical Sequence Control Safety Module Circuit Using Artificial Intelligence Controller)

  • 김홍용
    • 한국재난정보학회 논문집
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    • 제18권4호
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    • pp.699-705
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    • 2022

  • 연구목적: 시퀀스제어는 제조, 유통, 건설, 의료 산업분야의 자동화 등에 응용되어 널리 사용하고 있다. 4차산업의 발전으로 제어분야에 인공지능 융합 기술이 산업에 중요한 요소가 되어가고 있다. 특히 기존 시스템에 마이크로프로세서와 인공지능이 융합된 설비의 안전성과 혁신성을 평가하고 신뢰성 높은 장비개발이 요구되고 있어 교육목적의 장비를 개발하여 해당분야의 발전을 견인하고자 한다. 연구방법: 자체 개발한 일체형 인공지능 컨트롤러 모듈은 기존의 시퀀스 및 PLC제어 회로에 인공지능 능력을 융합한 장비이다. 본 장비의 성능평가항목으로 동작, 음성, 문자, 색상 등의 인식 능력과 회로의 안정성, 신뢰성을 평가하였다. 결론: 시퀀스 및 PLC 회로를 설계 후 융합된 일체형 인공지능 컨트롤러 모듈의 성능평가항목이 모두 만족하였고 회로의 안전성과 신뢰성에 문제가 없는 것으로 나타났다.

  • https://doi.org/10.15683/kosdi.2022.12.31.699 인용 PDF KSCI HTML

Effects of Low Crude Protein Diets Supplemented with Synthetic Amino Acids on Performance, Nutrient Utilization and Carcass Characteristics in Finishing Pigs Reared Using a Phase Feeding Regimen

  • Lee, J.H.;Kim, J.H.;Kim, J.D.;Kim, S.W.;Han, In K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권5호
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    • pp.655-667
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    • 2001

  • This experiment was conducted to investigate the effect of feeding a low CP diet supplemented with synthetic amino acids on performance, nutrient utilization and carcass characteristics of finishing pigs fed under a three-phase feeding regimen. Ninety-six finishing pigs (Landrace$\times$Large White$\times$Duroc), $55.75kg{\pm}0.65$ of initial body weight, were blocked by weight and sex and allotted to four dietary treatments in a randomized block design. There were six pens per treatment and four pigs per pen. Pigs were fed a 16%-14%-12% CP (for phase I-II-III, respectively), sequence of diets. Dietary treatments were 1) Control, 2) Con+L (a sequence of diets reduced in CP by l percentage unit with lysine (L) supplementation, 3) Con+LMT (a sequence of diets reduced in CP by 2 percentage unit with LYS, methionine (MET) and threonine (THE) supplementation) and 4) Con+LMTT (a sequence of diets reduced in CP by 3 percentage unit with LYS, MET, THR and tryptophan (TRP) supplementation). The finishing period (55 to 105 kg) was divided into three phases (55 to 72 kg, 72 to 90 kg and 90 to 105 kg). Pigs fed either the control or Con+L diet grew faster (p<0.05) than pigs fed the Con-LMT or Con+LMTT diet. There was no difference in ADFI among dietary treatments. Phosphorus (P) digestibility was lowest in the control group and highest in the Con+LMTT group (p<0.05). Within each phase, no significant differences in dry matter (DM) and CP digestibilities were found. Although some amino acid digestibilities were affected by dietary treatments, digestibilities of essential amino acids (EAA), non-essential amino acids (NEAA) and total amino acid were not significantly influenced by dietary treatments. For the entire experiment periods, Con+L, Con+LMT and Con+LMTT treatments resulted in 13.4, 18.8 and 21.6% lower total N excretion compared with the control. Con+LMT and Con+LMTT treatments showed significantly lower BUN concentration compared with the control and Con+L treatment (p<0.05), but there was no significant difference in BUN concentration between pigs fed the control and Con+L treatment or between pigs fed Con+LMT and Con+LMTT treatments (p>0.05). Carcass length, backfat thickness and carcass grade were not significantly affected by dietary treatments (p>0.05). In conclusion, reducing dietary CP level by 1 percentage unit and supplementing only LYS at each phase could be a very beneficial feeding strategy for finishing pigs fed under a three phase feeding regimen in terms of both environmental and economical aspects.

  • https://doi.org/10.5713/ajas.2001.655 인용 PDF

Main-Sequence Luminosity Function of M13

  • Yim, Hong-Suh;Byun, Yong-Ik;Sohn, Young-Jong;Chun, Mun-Suk
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2000년도 한국우주과학회보 제9권1호
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    • pp.28-28
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    • 2000

  • No Abstract, See Full Text

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