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김영근,김창복,강용철 광주보건대학 1999 論文集 Vol.24 No.-
It is required to apply in clinic for intelligent replenishment system of automatic X-ray film processor based on film density. We processed the serial 300 sheets of radiographic film of chest [14×14", HR-C type] and bone [elbow & ankle(8×10"), skull(10×12"), hand & foot(11×14"), pelvis(14×17"), HR-G type, 68, 70, 77, 85 sheets respectively]. We analyzed the characteristic curves, relative speeds, average gradients and base plus fog densities every twenty five sheets. We also evaluated the developer and fixer replenishment volumes every that time. In the chest and bone radiograph, the characteristic curves were little change and the relative speeds, average gradients and base plus fog densities were within the maximum permit limits. The average developer replenishment volumes were about 43ml/sheet and 39ml/sheet respectively. It brings decrease results about 29% in comparison with the conventional replenishment system. In our experiences, we concluded that the intelligent replenishment system of automatic X-ray film processor based on film density maintains image Quality consistently, decreases also the replenishment volumes. Therefore, this system will improve economic and environmental effects and solve problems of overs and shorts replenishment volume.
진단용 방사선 발생장치용 Q.C 용구의 특성에 관한 고찰
김영근,지연상 광주보건대학 1995 論文集 Vol.20 No.-
We investigated the characteristic of invasive method and non-invasive method when we were measuring the X-ray tube voltage and X-ray tube current, exposure time. We concluded that ; 1. For CV(coefficient of variation) of KVp instrument, Dynalyzer3 showed high degree of trust in 0.001~0.004. 2. For CV(coefficient of variation) of mA and sec instruments, the invasive method showed high degree of trust. 3. Considering the perchance price and problem of measurement, we concluded that the KVp test cassette and Digital mAs-meter, Spinning top were suitable instrument for KVp, mA, sec.
진단방사선영역에서 Ho 여과판 사용시 피폭선량 감소와 화질개선에 관한 연구
김영근,이성길 광주보건대학 2000 論文集 Vol.25 No.-
This work was reduction of exposure dose and improvement of image quality by use of Ho filter in diagnostic fadiology, From the results of experimental evaluation, it was founded that in the case of the Ho filter, the variety of X-ray property with kVp was less than those of Cu and Al. And the ratio of transit to surface-dose and the load of X-ray tube were increased in the order Al, Cu, Gd and Ho. The contrast of X-ray image showed the higher value in the order of Cu, Al, Gd and Ho.
요추후궁 절제술 직후 동통감소를 위한 척수경막하 및 척수경막외 Morphine 투여
김영근,정남,박경우,조경기 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.1
A number of reports have shown that intrathecal and epidural administration of morphine provides acute or chronic pain relief. We report the use of morphine for postoperative pain control in 84 lumber laminectomy patients. These patients were compared to the 24 control patients. Single dose of morphine in 0.5㎖ saline was administered under the direct vision into the intrathecal or the epidural space just before the closure of the lumbar operative wound. Intrathecal group was divided into 4 subgroups 0.2㎎, 0.5㎎, l㎎ and 2㎎ and epidural group was also divided into 2 subgroups 2㎎, 5㎎, respectively. Under the visual pain analogue scale, postoperative pain control were statistically significant in intrathecal 0.5㎎, l㎎ and epidural 2㎎, 5㎎ group, respectively(P<0.01). Respiratory depression was occured in 2 cases of intrathecal 2.0㎎ group and nausea with vomiting was occured in 10 cases but prutitus was not occured. Urinary retension was developed between 86.7% and 100% of study group compared to 45.8% of control group.
Rathke 열 낭종 : 증례보고 Case Report
김영근,정남,박경우,조경기 대한신경외과학회 1989 Journal of Korean neurosurgical society Vol.18 No.3
최근 예수병원 신경외과에서는 낭종이 터키안내부에서 상부까지 걸쳐 있으면서 약간의 대조강화를 보이고 있으나 석회화가 되지 않은 직경이 1.5㎝정도 되는 Rathke열 낭종 1례를 수술 치험하였기에 문헌고찰과 함께 보고하였다. Symptomatic Rathke's cleft cysts may be confined to the sella turcica or extended upward into suprasellar area. Like the more common cystic tumor of this region, the craniopharyngioma, they produce symptoms by compression of the surrounding structures. We report a rare case of a symptomatic Rathke's cleft cyst. The importance of the intraoperative differentiation between the cyst and a craniopharyngioma is discussed.
1920년대의 민족 해방운동 : 신간회를 중심으로 With a special reference to Shinganhoe movement
김영근 연세대학교 대학원 1988 원우론집 Vol.15 No.2
ABSTRACT The national liberation movement of 1920's experienced some changes in its locomotives and ideologies. After the nation-wide independence movement of 1919 against Japanese colonialism, the socio-economic situation of Chosen became worse, and class conflicts got more sharpened through the peasant -labour movement with the spread of socialism. In consequence, Chosen Communist Party was launched to lead peasant-labour movement for the solution of the class contradiction. However, under the colonial settings, the class conflicts essentially overlapped with the national conflicts, and the forces of social movement had to take as its primary task the liberation of nation through the cooperation of class. In other words, in the midst of colonial situation in which the national conflict distorted every part of the society, the thumb task of social movement was to forge the united front to solve the primary contradiction of national conflict. Hence, this paper studies the formation of the national united front of 1920's in colonial Korea with a special reference to Shinganhae movement. In forming the national united front against Japanese colonialism, the question of whether Shinganhoe movement was sucessful in combining "class struggle" with "national struggle" and the question of whether the peasantry and labourers manipulated the hegemony of the Shinganhoe movement are examined. To conclude briefly, the Shinganhoe movement itself as an united front against colonialism got nowhere. However, in view of the whole national liberation movement, which should be evaluated in the historical context of 1920's, true significance of the Shinganhoe movement are found.