• Journal of the Korean Chemical Society
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• v.32 no.3
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• pp.233-242
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• 1988

The uranium(VI) complexes with new unsaturated macrocyclic ligands of cryptand types and the neodymium(III) complexes with cryptand 222 and DBC ligands have been investigated polarographically in dimethylsulfoxide solvent. The reduction states, electron numbers involved in the reduction process, effects of the added acid on the polarograms of complexes, and the mechanisms of the reduction electrode reactions have been examined. The stability constants and mole-ratio of new complexes were also obtained by polarographic method. The reaction of ligands was controlled by the diffusion in the reduction with four electrons at a step, whereas the redox reaction with six electrons at three steps in $UO_2\;^{2+}$ complexes with macrocyclic ligands and the redox reaction with one electron at a step in $Nd^{3+}$ complexes with cryptand 222 and DBC have been observed. The imine ligands formed stable complexes with uranium(VI) above pH 7.0, and the neodymium(III) complexes with cryptand 222 and DBC ligands were stable above pH 4.0.

• Journal of Physiology & Pathology in Korean Medicine
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• v.18 no.6
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• pp.1635-1642
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• 2004

The aim of this study was to find out the effectiveness on germinated Rhynchosia Volubilis for Female Bone Morphogenesis. For this purpose, experiments using germinated Rhynchosia Volubilis(GRV) according to germinating days were conducted to measure the polyphosphate contents and to examine the effects of the transcription activity of gene related to bone morphogenesis on the formation of bone in female. The quantitative analysis of the polyphosphate contents showed that 1 day geminated Rhynchosia Volubilis(GRV) group is treble better contents of polyphosphate than non-germinated Rhynchosia Volubilis, 2 day and 3 day GRV groups. The active of the COL1, OTN, MGP, BMP genes was less than the increase of the polyphosphate contents.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.40 no.10
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• pp.110-118
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• 2003

The paper describes a design process of the connection control function that performs overall procedures of optical network control system in the Next Generation - Synchronous Digital Hierarchy (NG-SDH) based transport system. Here, the NG-SDH means a new SDH technology that could perform automatic connection control with a granularity of VC-3 (about 50M) or VC-4 (about 150M) according to the increase and decrease of traffic, which is different from the existing technology that could perform connection control only with a granularity of a physical SDH link (STM-l, STM-4, STM-16, STM-64, STM-256 etc). The NG-SDH based connection control allows an ingress NG-SDH node to control the appropriate connection establishment process according to connection types such as Permanent Connection (PC), Soft Permanent Connection (SPC), Switched Connection (SC) over various SDH and Ethernet line cards.