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문석환(Seok-Hwan Moon),황건(Gunn Hwang),유인규(In-Kyu You),조경익(Kyoung-Ik Cho),유병곤(Byoung-Gon Yu) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
Recently, a problem related to the thermal management in portable electronic and telecommunication devices is becoming issued. That is due to the trend of slimness of the devices, so it is not easy to find the optimal thermal management technology for the devices. From now on, a pressed circular type cooling device has been mainly used, however the cooling device with thin thickness is becoming needed by the inner space constraint. In the present study, the silicon and metal flat plate type cooling device with the separated vapor and liquid flow path was designed and fabricated. Through the experimental study, the normal isothermal characteristic by vapor-liquid phase change was confirmed and the cooling device with 70mm of total length showed 6.8W of the heat transfer rate within the range of 4∼5oC/W of thermal resistance. In the meantime, the metal cooling device was developed for commercialization. The device was designed to have all structures of evaporator, vapor flow path, liquid flow path and condenser in one plate. And an envelope of that could be completed by combining the two plates of same structure and size. And the simplicity of fabrication process and reduction of manufacturing cost could be accomplished by using the stamping technology for fabricating large flow paths relatively. In the future, it will be possible to develop the commercialized cooling device by revising the fabrication process and enhancing the thermal performace of that.
김지영(Ji Young Kim),정미소(Mi So Jeong),이성규(Seong Kyu Lee),박호진(Ho Jin Park),유인규(In Kyu Yu) 대한소아신경학회 2004 대한소아신경학회지 Vol.12 No.2
세균성 뇌수막염에서 두개내 합병증이 동반되는 경우가 많으며 질병의 예후와 밀접한 관련을 보여 신속한 진단과 치료를 필요로 한다. 저자들은 연쇄 상구균 뇌수막염으로 입원치료 하였던 환아에서 발생한 뇌경색증 2례를 경험하였기에 이를 보고하는 바이다. Despite the advent of new antimicrobial drugs and mordern imaging techniques, mortality and morbidity of bacterial meningitis remain high. The unfavorable clinical outcomes are due to intracranial complications such as cerebrovascular complications, hydrocephalus, cerebral edema, intracerebral hemorrhage, brain abscess, and convulsion. Prompt identification and treatment of each are essential to mininize unfavorable outcomes. We report two cases of cerebral infarctions complicated by Streptococcus pneumoniae meningitis with a brief review of related literatures.
후천면역결핍 증후군 관련 진행성 다초점 백색질 뇌증에서 항레트로바이러스 치료로 유발된 면역재구성증후군 1예
주성훈,김태형,나정식,송호섭,유인규,윤희정 대한감염학회 2010 감염과 화학요법 Vol.42 No.3
Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease of the central nervous system due to JC virus. In acquired immunodeficiency syndrome (AIDS) patients, JC virus infects myelin-producing oligodendrocytes causing a noninflammatory lytic reaction leading to demyelination and brain death. We herein report a case of a 56-years-old AIDS man who developed immune reconstitution inflammatory syndrome and died while undergoing highly active antiretroviral therapy. In this patient, the PML involved the brainstem, causing mental confusion followed by recurrent aspiration, adult respiratory distress syndrome, and eventually to early death.