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김규겸 ( Kg Kim ),이태호 ( Tae Ho Lee ),김주환 ( Joo Whan Kim ),고종선 ( Jong Seon Koh ),박병림 ( Byung Rim Park ) 한국감성과학회 1999 추계학술대회 Vol.1999 No.-
Off-vertical axis rotator was developed to differentiate each function of the canal and otolith in the vestibular system and evaluate subjective symptoms during postural change. Eye movement induced by various types of rotation was measured in normal subjects. Nystagmus with fast component corresponding to direction of rotation was occurred by sinusoidal earth vertical axis rotation, and the gain of eye movement in vestibuloocular reflex (VOR) was lower than in visual vestibuloocular reflex (VVOR) and higher than in visual fixed vestibuloocular reflex (VFX). Degree of dizziness was proportioned to degree of gain. Off-vertical axis rotation was produced severe dizziness than earth vertical axis rotation. These results suggest stimulation of the otolith should be minimized to make a stable and pleasant condition in work and travel.
Female Precocious Pseudopuberty를 동반한 난소과립막세포종의 1 례
김관옥(KO Kim),박봉림(BL Park),김규관(KG Kim),박건남(KN Park),김동진(DJ Kim) 대한산부인과학회 1988 Obstetrics & Gynecology Science Vol.31 No.6
Female Precocious Pseudopuberty를 동반한 난소과립막세포종 Functional ovarian tumors is the rare disease among ovarian tumors and is considered from granulosa cell origin. It was usually diagnosed after menopause, but was diagnosed infrequently before puberty. We had experiencd one case of functional ovarian tumors in 3 and 11/12 year-old female child, surgicla removal was performed and proved the juvenile granulosa cell tumor. Now, we present it with the brief review of literatures.
김택훈(TH Kim),김종인(JI Kim),서영욱(YU Suh),박관규(KG Park) 대한산부인과학회 1995 Obstetrics & Gynecology Science Vol.38 No.1
Endothelin was originally identified as a product of endothelial cells, which had a paracrine action on vascular smooth muscle, but it is now also known to be product of certain types of epithelial cells. Amnion (n=10) and umbilical cord (n=10) at preterm, term, preeclampsia were subjected to immunochemistry with antiserum cross activity with endothelin-1. Our objective was determine the localiztion immunoreactive endothelin in umbilical cord and amnion during preterm, term, preeclampsia. Intensity of positive staining was given a score of 0(negative),1(low), 2(moderate), or 3(strongly positive) for each group within each section. Comparision of immunochemistry with endothelin from different group(preterm, term preeclampsia) were conducted with Kruskal Wallis one way analysis. Comparision of each section at preterm, term, preeclampsia were conducted with Bonferroni adjusted Mann Whitney test. The intense immunochemistry was present on amnionic epithelial cells, endothelium of umbilical vein, cord epithelium at each group. No difference were detected between each group.
김동진(DJ Kim),김관옥(KO Kim),김규관(KG Kim),박복림(BR Park) 대한산부인과학회 1988 Obstetrics & Gynecology Science Vol.31 No.7
저자들은 본병원 산부인과에서 양수와 양수를 동반한 Meigs` syndorme 1예를 경험하였기에 문헌적 고찰과 함께 보고하는 바이다. A relatively uncommon syndrome which mimics the terminal phase of a metastasizing malignant tumor, far advanced cirrhosis, or cardiac failure, but is curable by surgical treatment was first described by Meigs. The syndroms is a triad of ovarian fibroma, ascites and pleural effusion But the mechanism of this syndrome is not clear. Authors present a case of Meigs` syndrome associated with ovarian firbroma with the brief review of literatures.
박봉림(BL Park),김관옥(KO Kim),김규관(KG Kim),박건남(KN Park),장준홍(JH Jang),김동진(DJ Kim) 대한산부인과학회 1987 Obstetrics & Gynecology Science Vol.30 No.9
저자들은 본병원 산부인과에서 30세의 경산부에서 자궁간질선근종증 1례를 체험하였기에 문헌고찰과 함께 보고하는 바이다. Endolymphatic stromal myosis of the uterus is a unusual mensenchymal tumor, originating in the endometrium. There has been considerable controversy as to nomenclature because of the uncertainty of the cell of origin and the behavior of the tumor. Here a case of a 30-year old woman with a endolymphatic stromal myosis is presented with a review of literatures.
김강현,신문수,조기홍,김한규,조경기 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.4
Over a 5-year period the authers had treated conservatively 40 cases of the acute epidural hematomas, in which 33 lesions were in the supratentorial area and others in the infratentorial area. The configuration of the hematomas was mostly focal and most of them did not show mass effect in aspect of midline shift. But there were 2 cases with over 10㎜ of midline shift which were located at the frontoparietal and temporoparietal area. The hematomas at the parietal area and posterior fossa did not make the midline shift. 36 patients among 40 patients with the epidural hematomas were succussfully treated in the nonoperative management. The clinical findings of these patients were over 13 points of Glasgow coma scale, no focal neurological defictis and normal vital signs. And CT scan of these patients revealed less 10㎜ of midline shifting, less 40㏄ amount of hematoma, hematomas located in all area except temporal fossa and hematoma without associated intradural lesions. Four patients failed in conservative treatment underwent evacuation of the hematoma. Relative poor mentation on admission(G.C.S.≥13), large volume of hematoma, expansile volume course and associated intradural lesions were considered as failure factors.
오금존(KG. Oh),조금배(G.B. Cho),김재민(J.M. Kim),조진섭(J.s.Cho),정삼용(S.Y. Jeong) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
In this paper, author describe the simulation results concerning the period doubling bifurcation route to chaos of DC/DC boost converter under current mode control to show that it is common phenomena on switching regulator when parameters are improperly chosen or continuously varied beyond the ensured region by system designer. Bifurcation diagrams of periodic orbits of inductor current and capacitor voltage of DC/DC boost converter are plotted with sampled data at moment of each clock pulse causing switching on DC/DC boost converter studied on this paper is modelled by its state space equations as per switching condition under continuous conduction mode. Current reference signal and capacitance are chosen as the bifurcation parameters and those are vaned in step for iterative calculation to find bifurcation points of periodic orbits of state variables.