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전진욱,최장석 인제대학교 1999 仁濟醫學 Vol.20 No.1S
전산화단층촬영과 자기공명영상은 척추관협착증의 진단과 척추체유합술 및 척추경을 통한 나사못 삽입술 등 척추질환의 진단과 치료에 중요한 정보를 제공하고 있다. 저자들은 요천추의 전산화단층촬영과 자기공명영상 100예씩 총 200예를 대상으로 한국 성인의 제1 요추에서부터 제1 천추까지의 척추체, 척추과, 척추경을 조사하여 척추관협착증의 진단, 척추체유합술에 이식골의 크기와 척추경을 통한 나사못의 길이, 나사못의 굵기와 삽입각도 결정에 기본 자료로 활용하려 하였다. Magnetic resonance image(MRI) and computed tomography(CT) provided information for diagnosis of spinal stenosis, and for interbody fusion and instrumentation of transpedicular screw. The author had reviewed the 200 cases of MRI and CT scanning of spine for the measurement of vertebral body canal and pedicle from first lumbar vertebra to first sacral canal. The results were as follows. 1.Anteroposterior, transverse diameter and height of vertebral body increased steadily from first lumbar vertebrar to first sacral vertebra. 2.The narrowest transverse diameter of pedicle was seen at first lumbar vertebra (9.0mm) and the widest at the first sacral(20.4mm). 3.The widest superoinferior diameter of pedicle was seen at first lumbar vertebra (13.1mm) and the narrowest at third lumbar(11.8mm). Above data could be used in diagnosis of spinal stenosis, in decision of the size of bone graft in interbody fusion and length, diameter and insertion of angle of transpedicular screw.
學校周邊 道路交通 騷音과 學生 聽感反應과의 相關關係 硏究
김종수,최동훈,박진식,김석택,김장호,서정민 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.2
For my thesis I have analyzed the differences between the traffic noise level surrounding the schools and the perceived level of noise. I have used the ways of measurement and questionnaires to support my study. According to the analysis, the measured noise level was higher than the expected noise level. The equivalent noise level was proven to be higher when the windows of the classrooms were open. The noise level was also higher on the third floor than the first floor. The correlation between the measured noise level and the perceived level of noise was tested in each school. The school which had a higher expected noise level showed a high perceived level of noise. The measured noise level and the perceived level of noise became larger on the higher floors. Through the questionnaires, the traffic noises were proven to be the largest noise-making source surrounding the schools. Most of the students replied on the questionnaires that they have been consistently bothered by the noise. It interfered with their studies and concentration. Also, the sound of their voices became louder because of the noise around their schools. Therefore, I have come to the conclusion that the traffic noises that surround the schools give the students negative influences.
Choi, Mi Hee,Shim, Ha-Eun,Yun, Seong-Jae,Park, Sang-Hyun,Choi, Dae Seong,Jang, Beom-Su,Choi, Yong Jun,Jeon, Jongho American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.43
<P>There has been worldwide attention on the efficient removal of radioactive iodine, because it is commonly released in nuclear plant accidents. Increasing concerns on environmental problems due to the radioactive iodine are leading us to develop stable and sustainable technology for remediation of radioelement contaminants. In this work, we report a highly efficient chromatographic method for specific and rapid capture of radioactive iodine. The gold nanoparticles immobilized dextran gel columns showed excellent removal capabilities of radioactive iodine in various conditions. These results suggested that our platform technology can be a promising method for the desalination of radioactive iodines in water.</P>
Choi, M.,Jeong, S. W.,Shim, H.,Yun, S. J.,Mushtaq, S.,Choi, D.,Jang, B. S.,Yang, J.,Choi, Y.,Jeon, J. Royal Society of Chemistry 2017 Chemical communications Vol.53 No.28
<P>We herein report a new bioremediation method using a radiationresistant bacterium. Biogenic gold nanomaterial-containing Deinococcus radiodurans R1 showed excellent capability for the removal of radioactive iodine (499%) in several aqueous solutions. These observations demonstrated that our remediation system would be efficiently applied to the treatment of radioactive wastes.</P>