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강성모(Sung-Mo Kang),박명철(Myoung-Chul Park),이병훈(Byung-Hun Lee),오광교(Kwang-Kyo Oh),안효성(Hyo-Sung Ahn) 제어로봇시스템학회 2013 제어·로봇·시스템학회 논문지 Vol.19 No.5
This paper provides an overview of distance-based formation control. Firstly, in this paper, we introduce preliminary background materials that are used in defining the distance-based formation control. Then, based on the preliminary background, we briefly review main results developed thus far in this field. Lastly, we provide some issues that need to be studied further in future works.
백서에서 분리된 췌도의 인슐린 분비에 미치는 Morphine과 Naloxone의 효과
전기엽,최호,박명철,유재성,정윤신,김환규,최영숙,이학송 대한내과학회 1990 대한내과학회지 Vol.38 No.4
This study evaluated the effect of morphine and naloxone on the biphasic insulin secretion of the perifused isolated rat pancreatic islets. The peirfusate was Krebs-Ringer solution, which contained 10m㏖/L glucose and 1.145m㏖/L calcium, and the flow rate was 1.5㎖/min. The results were as fallows: 1. The infusion of 1㎍/㎖ morphine caused a significant decrease in the first-phase and total insulin secretion of the diabetic rat islets only. It caused no significant change in the insulin secretion of the normal pancreatic islets. This suggests the possibility that 1㎍/㎖ morphine causes a greater increase in the outward potassium conductance of the diabetic pancreatic islets than that of the normal pancreatic islets. 2. The infusion of 1㎍/㎖ naloxone caused a significant decrease in total insulin secretion, both of the normal and diabetic pancreatic islets. Therefore, it suggests that the opioid system has some control function over the release of insuline by the pancreatic islets. But a small controversy exists concerning the regulatory function of the opioid system upon the insulin release of the pancreatic islets, so further study must be conducted to fully evaluate its function.
이승헌,설은영,박명철,김관식,김명희,박형우 大韓成形外科學會 1997 Archives of Plastic Surgery Vol.24 No.5
Nerve innervation is important for normal development of the limb in the laboratory animals. There are only few reports on the morphogenesis of nerves in the upper limb of human embryos. In this study 20 cases of staged human embryos between Carnegie stage 11 and 23 were used to pursue the chronological relationships between the nerves and the skeleton and muscles in the developing human upper limb. Formalin-fixed embryos were dehydrated with graded alcohol, cleared with histoclear, and embedded in paraffin. Serial sections were stained with hematoxylin-eosin and trichrome. Three dimensional reconstruction models had been prepared by tracing on the blotting papers. The upper limb bud appeared at stage 12, and regularly developed during embryonic period. Primitive brachial plexus was formed at stage 14, but did not reach the limb bud. Brachial plexus entered the upper limb bud at stage 15, and branched into major nerves. Major nerves had branches at stage 17. Branches grew distally as the limb bud developed, and reached distal phalanges at stage 23.