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K. S,Lee,Y. S. Jung,J. H. So,G. J. Yu,J. H. Choi,J. Y. Choi 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Most PV (Photovoltaic) inverters are a voltage source type Normally an input capacitor of this type is connected at the Input of an inverter to keep the DC voltage constant. However, it does not seem to be well known how to determine the appropriate value of the capacitor By developing non-linear transient analysis, the author suggests a guideline for this approach An implicit trapezoidal formula was used to do this calculation<br/>
Ahn, Ks,Jeon, S-J.,Ahn, Ks,Jeon, S-J.,Jung, J-Y.,Ahn, Ks,Jeon, S-J.,Jung, J-Y.,Kim, Ys,Kang, Jh,Shin, S.,Choi, T.,Choi, S-J.,Chung, P.,Shim, H. Elsevier 2008 cytotherapy Vol.10 No.7
<P>BACKGROUND: To study cell replacement therapy using embryonic stem (ES) cells in mice, avoiding immune rejection and tracing the fate of transplanted cells are important issues. This study was carried out to isolate ES cells ubiquitously expressing enhanced green fluorescent protein (EGFP) and test the survival of these cells in allografts in the cochlea of inbred C57BL/6 mice. METHODS: Putative ES cells were isolated from blastocysts collected from C57BL/6-green mice ubiquitously expressing EGFP. Pluripotency of these cells was tested by expression of stem cell markers and in vitro differentiation of the cells into embryoid bodies. Isolated EGFP-transgenic ES cells were injected into the cochlea of deafened inbred C57BL/6 mice, and survival of transplanted cells was identified in histologic sections of the cochlea. RESULTS: Putative ES cells expressed cellular markers for ES cells, including alkaline phosphatase, Oct-4, Nanog and stage-specific embryonic antigen-1. These cells formed embryoid bodies in suspension cultures. Incorporation of transplanted cells was found at the area of spiral ganglion neurons, auditory nerve fibers reaching the organ of Corti and stria vascularis in the scala media. Grafted cells were also found at the location of inner hair cells underneath the tectorial membrane. DISCUSSION: The isolation of ES cells from the EGFP-transgenic mouse and transplantation into allogeneic inbred mice may be a useful means of studying cell therapy with respect to the ubiquitous and stable expression of EGFP and elimination of graft rejection.</P>
김광숙(KS Kim),이동식(DS Lee),황민철(MC Whang),오기석(KS Oh),양영호(YH Yang) 대한산부인과학회 1975 Obstetrics & Gynecology Science Vol.18 No.8
난소의 Krukenberg 종양 17예를 고찰하여 보고하는 바이다. We have observed 17 cases of Krukenberg tumor among 519 cases of ovarian tumor who were admitted operated and diagnosed at yonsei University medical center from January , 1961 to December 1973. The following were the result of this study 1. The incidence of Krukenberg tumor was 3.3% and the most frequent age incidence was from 40 to 49 years old. 2. Clinical symptoms and signs were abdominal distension, indigestion lower abdominal mass, abdominal pain ascites and menstrual disorder in order of frequency 3. The bilaterality was 76.0% and in the most cases the primary site was unknown. The associated sites of the tumor were stomach (5cases) breast (1 case) and colon (1case)