• 제목/요약/키워드: chungnam

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Electrical and magnetic properties of GaMnN with varying the concentrations of Mn and Mg

  • F.C. Yu;Kim, K.H.;Lee, K.J.;H.S. Kang;Kim, J.A.;Kim, D.J.;K.H. Baek;Kim, H.J.;Y.E. Ihm
    • 한국재료학회:학술대회논문집
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    • 한국재료학회 2003년도 춘계학술발표강연 및 논문개요집
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    • pp.109-109
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    • 2003
  • III- V ferromagnetic semiconductor has attracted great attention as a potential application for spintronics due to a successful demonstration of spin injection from ferromagnetic GaNnAs into semiconductor. GaMnN may be one of the possible candidates for room temperature operation. Samples were grown on sapphire (0001) substrate at $650^{\circ}C$ via molecular beam epitaxy with a single Precursor of (Et$_2$Ga(N$_3$)NH$_2$$CH_3$) and solid source of Mn at different Mn source temperature. The background pressure is low 10$^{-10}$ Torr and the samples growth pressure was 1.4 $\times$ 10$^{-6}$ Torr.

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말티즈견에 발생한 기저세포종 (Basal cell tumor) 1례 (A Case of the Basal Cell Tumor Occurred in a Maltese Dog)

  • 김지용;박성준;이영원;정성목;조종기;김명철;신상태;손화영;김덕환;송근호
    • 한국임상수의학회지
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    • 제22권2호
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    • pp.166-169
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    • 2005
  • A 10 year-old castrated male Maltese dog with a mass on the right carpal joint was referred to the Chungnam National University Veterinary Medical Teaching Hospital. Mass size was 0.5 cm in width, 0.8 cm in length and 0.8 cm in height. Surface of the mass was hairless and ulcerated, and also the peripheral furs of mass were discolored by continuous licking. This case was diagnosed as basal cell tumor by fine needle aspiration and histopathologic examination. This dog didn't lick the carpal joint after surgery.

Selection of candidate sites for agrivoltaics in Chungnam Province: utilizing AHP analysis and ArcGIS

  • Byung Min Soon;Su Min Cho;Hee Dong Koo;Hyun Seon Lee
    • 농업과학연구
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    • 제50권4호
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    • pp.953-966
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    • 2023
  • As the importance of renewable energy diffusion spreads, promotion of sustainable renewable energy projects such as agrivoltaics is expected to accelerate. Furthermore, to promote agrivoltaics projects, it must be considered the legislation related to agrivoltaics and Chungnam Province's local policy. This research focuses on the selection of the most suitable sites for agrivoltaics installations in Chungnam Province in South Korea. Therefore, the process of this research was as follows. First, the legislation related to agrivoltaics and local policy in Chungnam Province were identified. Second, it employs an analytic hierarchy process (AHP) to consider important criteria and their weights for site selection. Third, based on the weights calculated AHP, geographic information system (GIS) was performed to select most suitable location selection of agrivoltaics installations in Chungnam Province. The analysis identified approximately 60 promising most suitable location for agrivoltaics installations in Chungnam Province, primarily in the northern part of Chungnam Province. These areas are expected to meet electricity demands in nearby regions since these are relatively adjacent to Gyeonggi Province. According to the results of research, policy suggestions related to agrivoltaics were presented separately into the agricultural sector and the electricity power sector. The study's results serve as a valuable resource for future national-level candidate site selection for agrivoltaics projects.

폐정맥의 원발성 악성 말초신경초종: 증례 보고 (Primary Malignant Peripheral Nerve Sheath Tumor of the Pulmonary Vein: A Case Report)

  • 우현;권혜영;김진환;김성수;박형규;이연주;박재형
    • 대한영상의학회지
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    • 제84권6호
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    • pp.1384-1390
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    • 2023
  • 심장과 대혈관 기원의 원발성 종괴는 매우 드물다. 그중에서도 악성 말초신경초종은 더 드물게 보고되었다. 76세 남성에서 발견된 흉수의 원인 평가를 위해 시행한 조영증강 컴퓨터단층촬영에서 우폐정맥과 좌심방을 침범하는 저음영의 종괴가 발견되었고 초음파상 우폐정맥에서 기인한 종괴로 의심되었다. 종괴는 수술적 절제를 통해 폐정맥 기원의 악성 말초신경초종으로 최종 진단되었다. 저자들은 국내에서 보고된 바가 없는 드문 증례인 폐정맥 기원의 원발성 악성 말초신경초종을 보고하고, 종괴가 폐정맥 기원임을 시사하는 영상의학적 소견에 대해 고찰하고자 한다.