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김성률,김병권,홍영습,담도온,최순섭,정갑열,김준연,Kim, Sung-Ryul,Kim, Byoung-Gwon,Hong, Young-Seoub,Dam, Do-Won,Choi, Soon-Seob,Jung, Kap-Yull,Kim, Joon-Youn 대한예방의학회 1995 Journal of Preventive Medicine and Public Health Vol.28 No.2
We experienced a case of occupational lead poisoning employed in a secondary lead smelting plant for 12 years. The patient was 39-year-old male and had been felt dizziness, recent memory impairment and intermittent severe abdominal pain for 2 years. On admission, blood lead level was $92.9{\mu}g/dl$, urinary lead level was $19.9{\mu}g/l$ and zinc protoporphyrin level was $226.0{\mu}g/dl$. On the blood test, hemoglobin was 10.6g/dl and showed normocytic normochromic anemia. There were no abnormal findings in the biochemical and hormonal tests. Decrease of I.Q. and use of words in speaking were found in the psychiatric and psychologic examinations. We observed the finding of motor polyneuropathy in the nerve conduction velocity test. Computed tomographic finding showed calcification lesions in the basal ganglia, dentate nuclei, caudate nuclei, and especially characteristic multiple calcifications were located in the subcortical white matter.
혈류 진단을 위한 초음파 펄스 도플러 시스템에 관한 연구
김성률,김진하,박송배,Kim, Seong-Ryul,Kim, Jin-Ha,Park, Song-Bae 대한전자공학회 1984 전자공학회지 Vol.21 No.5
보통의 초음파 도플러 시스템은 게이트된 연속파(gutted CW)를 사용하기 때문에 초음파 B스캔너와 같이 스캔할 수 있는 초음파 도플러 진단기는 많은 선형 고주파 증폭기를 필요로 한다. 제작이 어려운 고압 고주파 증폭기를 사용하지 않고 초음파 소자를 직접 임펄스로써 구동하는 펄스 도플러 시스템이 이론적으로 해석되었으며, 실험적으로 연구되었다. 설계된 시스템은 8채널 기능을 갖고, 직각 검파(quodrature detection)를 사용하여 목표물의 운동방향을 알 수 있도록 하였으며, 감쇄영향을 보상할 구 있도록 하였다. 연구된 시스템은 주파수 축상에서 실시간으로 혈류진단을 할 수 있는 다중 채널 진단기의 가능성을 보이고 있다. In the conventional pulsed doppler system, gated CW is used to excite a ultrasonic transducer so that a group of linear RF amplifiers are required to excite a ultrasonic array transducer in the scanning pulsed doppler system. A pulsed doppler system without linear high voltage RF amplifiers, which excites the transducer impulsively, is studied theoretically and experimentally. In this paper, an experimental 8-channel pulsed doppler system is implemented, which uses quadrature defection to detect the direction of motion and can compensate the attenuation effect. The designed pulsed doppler system shows the possibility of real time multichannel doppler flow meter.
김성률 경남대학교 교육문제연구소 2001 敎育理論과 實踐 Vol.11 No.1
This study has intended to examine the subjects that had appeared in the circumstances of physical activity of modern times and to try to search its practice and judgement in oriental viewpoints. First we have fond out the way of surmount for solving the problem of physical education which was conceptive knowledge and central ability. Second we have investigate the experiences as a physical education value. Finally we have inquired into the main point of general idea which was an oriental stand point. Teaching of physical education has complex characters differently any other teachings.With this reason the trial of just evaluate quantitatively was exclusive in approach, Therefore the evaluation of physical education has the strong point onto the process of physical education instruction results and the direction to the qualitative appraisement of physical education. On the ground of evaluation, in addition, a man must distinctly observe growth process by the physical activity as a physical education 'becoming' and find his characters and possibility.