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선도원,배달희,조성호,박영성 大田大學校 産業技術硏究所 1997 산업기술연구소 論文集 Vol.8 No.1
순환유동층 시험연소로에서 국내무연탄의 연소에 따른 연소로 내벽의 열전달 특성을 고찰하였다. 연로소의 온도변화 및 층밀도의 변화에 따른 전열계수의 변화를 측정하였다. 한편 전열모델을 구성하고 그 계산치를 실험결과와 비교하였다. 또한 복사 전열에 대한 고찰을 통해 순환유동층 열전달에 미치는 복사의 영향을 추정하였다. Bed to wall heat transfer in a both scale circulating fluidized bed was studied. Domestic anthracite was burned to heat the combustor. Variation of heat transfer rate with combustor temperature, bed density was monitored. Test result was compared with a proposed heat transfer model and radiation effect in heat transfer was predicted
선도원,조성호,배달희,박영성 大田大學校 環境問題硏究所 1996 환경문제연구소 논문집 Vol.1 No.-
Process characterization of waste plastics pyrolysis in a bench scale fluidized bed test unit was investigated. Feasibility of commercial scale process such as proper feeding system and reaction control ability were analysed and confirmed based on the reaction characteristics varying with the plaxtics and system assemblies. Eight pure or waste plastic samples were collected from the industrial waste plastics generation source in Korea. Selected samples were HDPE, LDPE autobovile interior, XLPE electric wire coat, synthetic rubber, EVA shoe sole, PS(monomer and styrofoam) and ABS. The pattern of decomposition reflected composition and molecular structure of plastics. Decomposition of polyolifin produced linear paraffinic and olefinic compounds. Recovery of styrene monomer and aromatic compounds were attained from the phrolysis of PS and ABS. However, secondary reaction was monitored was monitored even from the pyrolysis of aliphatic samples of XLPE and EVA.
한국 주요정신장애의 유병률 및 관련요인 : 2006 전국정신질환역학조사
조맹제,장성만,함봉진,정인원,배안,이영문,안준호,원승희,손정우,홍진표,배재남,이동우,조성진,박종익,이준영,김진영,전홍진,이해우 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3
Objectives The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. Methods The Korean Epidemiologic Catchment Area study Replication (KECA-R) was Conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target Population included all eligible residents aged 181o 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). Results A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of Specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nicotine use disorder, 9.0% and 6.0% ; 3) specific phobia, 3.8% and 3.4% ; 4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. Conclusion The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.
Yeong Bae Seong(성영배) 대한지리학회 2007 대한지리학회지 Vol.42 No.2
티벳고원의 서쪽, 중부 카라코람의 인더스 강이 지나는 Skardu 근처에서 발견된 약 1.3㎞의 두께를 보이는 Bunthang 시퀀스의 절대 연대측정을 우주 기원 동위원소인 <SUP>10</SUP>Be과 <SUP>26</SUP>Al의 비를 이용해서 측정했으며 약 2백 65만년전에 급격하게 퇴적된 것으로 확인되었다. 이러한 퇴적시기는 지금까지 발견된 가장 오래된 직접적인 빙하활동의 증거로서 이전의 고지자기 연구와도 일치한다. Bunthang 시퀀스는 아래에서부터 빙퇴석, 호성 퇴적물, 하천 퇴적물 그리고 다시 호성 퇴적물로 이루어지며 어떠한 단층운동의 증거도 발견되지 않는 점으로 미루어 볼 때 분지의 생성은 빙하의 하방침식에 의해서 만들어졌으며 빙하의 후퇴와 더불어 proglacial 과 paraglacial 프로세스에 의해서 생성된 것으로 판단된다. 이 지역에 있어서 신생대의 활발한 지반 활동은 인더스 강의 구배를 변형시킴으로써 연구지역과 같은 국지적인 호소퇴적층의 활발한 퇴적을 용이하게 하였으며 또한 지반운동과 빙하의 침식에 의한 사면의 불안정성은 이러한 국지적 퇴적 작용을 더욱 촉발시켰을 것으로 판단된다. 이전의 연구와 본 연구의 결과로써 지난 제4기 동안 빙하의 활동이 약해진 것으로 보건데 지난 마지막 빙기 최성기를 정점으로 티벳고원에 커다란 빙상이 존재했다는 가설은 틀린 것으로 보인다. 이 지역에서 제4기 동안의 빙하 활동의 축소는 희말라야 산맥과 카라코람 산맥 중심의 급격한 융기로 인해 Indian monsoon의 유입이 줄어든 것에서 기인한 것으로 추측된다. Absolute age of the deposition of 1.3 ㎞-thick Bunthang sequence within the Skardu intermontane basin of the Central Karakoram was determined using radioactive decay of cosmogenic <SUP>10</SUP>Be and <SUP>26</SUP>Al burial dating. The Bunthang sequence deposited around 2.65 Ma, which is the oldest glaciation in the region. The timing of deposition of the Bunthang sequence is consistent with the previous suggestion that the basin filling took place between Brunhess and Matuyama chrons. Four major sedimentary facies interfinger within the Bunthang sequence: glacial diamict, lacustrine, fluvial and lacustrine facies upward. This sedimentary distinctiveness and the lack of evidence on the faults for alternative pull-apart basin model around the Bunthang sequence, suggest that the depressional basin was formed by deep subglacial erosion during the extensive Bunthang Glacial Stage and subsequently the sediments underlain by basal diamict, was quickly deposited by proglacial and paraglacial processes. Temporary ponding of the Indus River due to tectonic uplift in the downstream or blockage by mass movements might make the basin filling more possible. The hypothesis that the single ice sheet developed on the Tibetan Plateau during the global last glacial cycle should be refuted by the existence of the older extensive Bunthang glacier. Furthermore, the extensive glaciation during the early Quaternary (and thus progressive decrease in extent with time) suggests that there may have been significant uplift of the Pamir to the west and Himalaya to the south, which would have reduced the penetration of westerlies and Indian summer monsoon and hence moisture supply to the region.
Yeong Bae Seong(성영배),Hyoun Soo Lim(임현수),Ho Il Yoon(윤호일),Yong Il Lee(이용일),Yeadong Kim(김예동),Lewis A. Owen 대한지리학회 2006 대한지리학회지 Vol.41 No.5
2005~2006 남반구 여름기간 동안 서남극 남쉐틀랜드 군도의 빙하지형 및 그에 관련된 제4기 후기 기후변화에 대하여 조사했다. 빙하지형학적 증거와 방사성탄소 연대측정 결과는 이 지역에서 세 번 이상의 빙하 전전이 있었음을 보여준다. 첫번째는 광범 위한 빙하활동으로서 최종빙기 최성기(LGM)에 형성된 것으로 보이며 해저지형과 빙하기저 융빙수 하천, 그리고 찰흔의 기록에 의하면 빙상의 중심이 지금의 북쪽 대륙붕에 있었고 약 1000m의 두께와 바닥면의 온도가 어는점 이상이었던 것으로 추측된다. 이와는 달리 홀로세 후기에도 최소 두 번 이상의 빙하 전진이 있었는데 이들은 현재의 해안선을 넘지 못하는 매우 제한된 범위였고 빙하의 기저면이 어는점 이하에 있어서 침식활동이 미약했던 것으로 판단된다. 이들 제한된 빙하활동은 약 2천년전 그리고 소빙기에 각각 발생하였다. The timing and extent of glaciations during the Late Quaternary in the South Shetland Islands, West Antarctica were defined using field mapping, geomorphic analysis and radiocarbon dating. Landforms of glacial erosion and deposition, in particular subglacial meltwater channel erosion, suggest that at least three glaciations occurred during the late Quaternary within the study region. During the global LGM, glacial troughs (such as Maxwell Bay and Admiralty Bay) were overdeepened by an ice stream moving south from an~1000m-thick ice cap centered on the present-day continental shelf to the north. This ice was responsible for the subglacial meltwater channel erosion, and glacial polished and striated bedrock on the Fildes Peninsula. The recent local glaciations occurred about 2,000 years ago and during Little Ice Age (LIA). During these glaciations, glaciers were less extensive than the previous one and less erosive as a cold-based ice.