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경수에 발생한 원발성 흑색종 : 증례보고 Case Report
배병철,송근성,차승헌,박동준,최창화,이영우 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.9
The primary melanoma of spinal cord was rarely reported in the literatures. The authors report a case of primary spinal maligmant melanoma in the cervical spinal cord. A 41-year-old man presented several months history of right shoulder pain and right hemiparesis. Plain X-ray of the cervical spine. myelography. computerized tomography and magnetic resonance imaging showed intradural mass from third to fifth cervical spine level. The operation was perfomred. and intradural intra- and extramedullary brownish black tumor, which focally infiltrated to the dura and inner surface of lamina, was removed and the histological diagnosis was maligmant melanoma. And then chemotherapy with vincristine, bleomycin, cisplatine, followed by whole central nervous system radiation therapy was performed. The patient was discharged and followed up with no neurological interval change. The pertinent literature of spinal cord melanoma is reviwed and its rareness is discussed.
Effects of SO2 gas adsorption properties of N2 plasma treaed activated carbon fiber
배병철,최종은,이철위,이영석,임지선 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
The mechanisms of the SO2 gas adsorption properties of activated carbon fibers were studied based on surface treatment. The surfaces of the activated carbon fibers (ACFs) were modified by plasma treatment using N2 gas to enhance the adsorption of SO2 by the fibers based on the effects of the nitrogen functional groups introduced on the surface. Nitrogen functional groups were effectively introduced onto the surfaces of the ACFs based on the semi-introduction with SO2 molecules, and they attached themselves to the pores of the ACFs as the flow rate of N2 gas increased. The nitrogen functional groups, on the surfaces of the ACFs played an important role in guiding SO2 into the micropores via the attractive forces experienced by the electrons in the SO2 molecules.
배병철,최창화,이영우 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.10
Traumatic carotid-cavernous fistula(CCF) is a rare complication of moderate to severe head injury. A series of 15 traumatic carotid-cavernous fistulas has been analyzed and 13cases have been treated with 3 different methods : direct obliteration through pterional approach(5cases). ligation of internal. common and external carotid artery in the neck(2cases). occlusion of CCF with detachable balloon technique(6cases). The remaining 2cases were treated by conservative procedures. There were 12cases(80%) with skull fractures. the majority of which(10cases) had frontal vault and basal skull fractures. The results of each method were as follows : 1) Among the 5 direct obliteration procedure groups. we got satisfactory results in only 2 cases(40%), and the other 2cases needed additional instantaneous carotid trapping procedures. which corrected the fistula. Internal carotid artery patency was also preserved in cases(40%). 2) Among the 2cases of carotid trapping group only 1case(50%) improved to good. 3) Among the datachable balloon group 5cases(83.3%) recovered to good or corrected. Carotid patency was preserved in 4cases(67.7%). As a result initial treatment modality of CCF should be datachable balloon technique because of good preservation of carotid patency. better result. simplicity. and safety compared with other operative methods.
Improved anti-oxidation properties of Lyocell fiber achieved by phosphorus compound
배병철,김은애,전영표,이철위,인세진,이영석,임지선 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
The anti-oxidation behavior of Lyocell fibers during flame-retardant treatment as a function of the effects of a phosphorus compound was explored. Di-ammonium-hydrogen phosphate (DAHP) was observed to reduce the thermal degradation rate of the Lyocell fibers and increase the char yield; DAHP also increased the limiting oxygen index via a first-order relationship with the char yield. The integral procedure decomposition temperature (IPDT) increased significantly, and the activation energy increased by a certain factor, indicating a slow degradation pathway involving dehydration, rearrangement, formation of carbonyl groups, evolution of carbon monoxide and carbon dioxide, and formation of a carbonaceous residue for the flame retardancy of Lyocell fibers.
A Study of VR Interactive Storytelling for Empathy
배병철,김동균,서갑열 한국디지털콘텐츠학회 2017 한국디지털콘텐츠학회논문지 Vol.18 No.8
In this article we describe our preliminary work to create VR interactive storytelling particularly for building empathic relationships between the reader (or the player) and story characters. As a practical guideline for developing empathy-based VR interactive story, we propose four key factors: first, narrativity considering narrative theories and concepts including the notion of focalization by Gerald Genette; second, interactivity for balancing between narrative and player control in interactive storytelling domain; third, consideration of virtual reality in human computer interaction domain; fourth, empathy in narrative from the viewpoint of psychology and cognitive science. We also introduce an example interactive storytelling scenario based on Little Red Riding Hood story. Finally we conclude with our VR implementation using Unreal game engine and HTC Vive.