이준호 교수

Without radiation shielding, a surgeon performing 291 PELDs annually would be exposed to the maximum allowable radiation dose. Given the measurable lifetime radiation hazards to the surgeon, the use of adequate protective equipment is essential to reducing exposure during PELD.

In spite of the key role of hydrogen bonding in the structural stabilization of the prototypic hybrid halide perovskite, CH3NH3PbI3 (MAPbI3), little progress has been made in our in-depth understanding of the hydrogen-bonding interaction between the MA(+)-ion and the iodide ions in the PbI6-octahedron network. Herein, we show that there exist two distinct types of the hydrogen-bonding interaction, naming α- and β-modes, in the tetragonal MAPbI3 on the basis of symmetry argument and density-funct

Mimicking human skin sensation such as spontaneous multimodal perception and identification/discrimination of intermixed stimuli is severely hindered by the difficulty of efficient integration of complex cutaneous receptor-emulating circuitry and the lack of an appropriate protocol to discern the intermixed signals. Here, a highly stretchable cross-reactive sensor matrix is demonstrated, which can detect, classify, and discriminate various intermixed tactile and thermal stimuli using a machine-l

정보기술의 발전으로 세계 관광시장이 개별관광 중심으로 빠르게 변화되면서 모바일 사용에 익숙한 소셜 네트워크 서비스가 새로운 관광매체로 떠오르고 있다. UCC 기반형의 SNS 중 하나인 유튜브는 최근 실시간 스트리밍 서비스를 도입해 시청자와 1인 미디어 콘텐츠 제공자 간의 빠르고 생생한 소통을 가능케 했다. 이 연구에서는 현재 국내 1인 미디어 시장에서 가장 인지도가 높은 유튜브1인 여행방송 중 여행과 관련한 콘텐츠 시청자들의 개인적 특성과 사회적 시청에 대한 부분이 만족도에 어떠한 영향을 미치는지 알아보고, 더 나아가 지속이용 의사와 소개된 관광지에 대한 방문의도간의 영향관계를 살펴볼 필요가 있다고 판단했다. 따라서 연구를 위해 유튜브 여행방송 시청자를 대상으로 설문을 실시하였으며 연구모형을 토대로 탐색적 및 확인적 요인분석 및 경로분석을 시행하였다. 그 결과, 개인적 특성 중 개인혁신성과 지각된 즐거움은 시청 만족도에 유의미한 영향을 주었으나 자기효능감은 영향을 미치지 않는 것으로

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OBJECTIVE: Results following anterior cervical discectomy (ACD) without fusion are not well reported because of skepticism that the disturbed cervical spine anatomy after ACD might compromise clinical outcome. The purpose of this study was to determine whether ACD without fusion prompts the degenerative process significantly, and whether it is necessary to preserve disc height and cervical alignment for the sake of better clinical outcome following cervical spine surgery. BACKGROUND DATA: Out of

A significant drawback of atlantoaxial transarticular screw fixation is a potential risk of vertebral artery injury, especially with a high-riding type. The authors propose a relatively safe trajectory in cases of high-riding vertebral artery by using the 3-dimensional computerized tomography image reconstruction programs. Twelve consecutive patients with a pathologic condition in atlantoaxial complex were prospectively analyzed. Five other patients, whose high-riding vertebral arteries were inc

We report a rare situation in which a lipomyelomeningocele and an intramedullary arteriovenous malformation (AVM) occurred together at the T11-L1 level in a 44-year-old man. MR images showed a hypervascular lesion intradurally and a fatty component extradurally. Spinal angiography revealed this lesion to be an intramedullary AVM with multiple feeding arteries from the right T12 and left T10 intercostal artery and the left L1 lumbar artery, drained by tortuous, dilated, perimedullary veins.

The purpose of this study was to analyze business environment of the Korean professional baseball and football franchise using financial statements. Toward this end, financial statements of 6 professional baseball teams and 8 professional soccer teams were retrieved from the electronic disclosure system. In addition, financial ratio of the 14 franchise was collected at http://dart.fss.or.kr. Data collection period included the financial year between 2014 and 2016. Based on the previous studies,

Lee, Junho 2011. 08. A Study on Listening Activities Through Analysing Korean Language Listening Textbooks. Korean Linguistics 52, 149-176. This article aims to analyse listening textbooks for Korean language learning focusing on listening activities and to discover the problems about them in the textbooks and to suggest alternative listening activities for Korean language learners. Listening comprehension is no longer considered as a passive and receptive skills in communicative language teachi