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사지의 방사선치료에 사용되는 쌀 볼루스의 품종에 따른 방사선량분포의 민감도 연구
서정민(Jeongmin Seo) 한국방사선학회 2020 한국방사선학회 논문지 Vol.14 No.6
사지부위에 많이 발생하는 연부조직육종의 방사선치료에 사용하는 쌀을 이용한 볼루스의 적용에서 쌀의 품종에 따른 형태적 차이에 따라 달라지는 방사선량분포의 차이가 발생하는지를 알기 위하여 일반적인 국산 쌀과 낱알의 크기가 작은 태국산 쌀을 각각 적용한 쌀 볼루스의 선량분포 민감도를 비교하였다. 쌀 볼루스를 적용하지 않는 팬텀, 국산 쌀을 사용한 쌀 볼루스를 적용한 팬텀, 태국산 쌀을 사용한 쌀 볼루스를 적용한 팬텀에 동일한 방사선치료계획을 수립하고 동일한 지점 12곳에 대한 선량을 비교하였다. 등중심점에 대하여 100 cGy를 처방하였으며, 낱알의 크기가 작고 긴 태국산 쌀을 이용한 쌀볼루스에서 평균 103.57±1.98 cGy, 국산 쌀 볼루스에서 평균 104.27±2.12 cGy, 볼루스가 없는 팬텀에서 104.99±6.40 cGy의 선량분포를 보였다. Wilcoxon’s Signed Rank test에서 태국산 쌀 볼루스와 국산 쌀 볼루스의 선량분포가 유의한 차이를 보였다(p=.011). 낱알의 크기가 작고 긴 태국산 쌀을 이용한 볼루스에서 더 균등한 선량분포를 보임을 확인하였으며 임상에서 이를 고려하면 더 양질의 의료서비스를 제공할 수 있을 것이다. To investigate the radiation dose sensitivity in extremity radiatioin therapy depending on rice cultivar which have different size and shape of grains, plan results are compared that used rice bolus Korean and Thai rice. Phantoms that are each no bolus, Korean rice bolus, Thai rice bolus were used and prescribed 100 cGy to isocenter and checked the point dose of 12 points of interest of each phantoms. The meane dose are 103.57±1.98 cGy in Thai rice bolus using, 104.27±2.12 cGy in Korean rice bolus and 104.99±6.40 cGy in phantom without bolus. Dose distribution of Thai and Korean rice bolus differed significantly in Wilcoxon s Signed Rank test (p=.011). It has been confirmed that that the bolus using Thai rice, which has a small grain size, shows a more even dose distribution.
국어의 경음화현상과 불투명성 - OT-CC를 중심으로 : 국어의 경음화현상과 불투명성
서정민(Seo Jeongmin),조학행(Jo Hakhaeng) 한국언어문학회 2006 한국언어문학 Vol.59 No.-
The purpose of this paper is to investigate the opacity in post-liquid tensification of Korean verbal inflection. For this, after classifying the tensification phenomena in Korean, we will present the opacity problem. Following that, we will analyze the opacity in post-liquid tensification of Korean verbal inflection within the framework of McCarthy(2006a)’s recent proposal, Optimality Theory with Candidate Chains (OT-CC, henceforth), which incorporates inter-candidate derivational information with PREC (edence) constraints(A, B). This paper is organized as follows. Section Ⅰ provides introductory remark about this paper. Section Ⅱ provides an introduction of OT-CC. In Section Ⅲ, we will analyze the opacity in post-liquid tensification of Korean verbal inflection resulting from rule overapplication within the framework of OT-CC. Section Ⅳ is a concluding summary.
이슬람국가(IS)의 미디어 전략과 폭력적극단주의 대응(CVE)
서정민 ( Jeongmin Seo ) 한국외국어대학교 중동연구소 2016 중동연구 Vol.34 No.3
The immensity of Islamic State`s propaganda machine has obscured a rational understanding of it. The organization`s media strategists are producing high-definition depictions of the most abhorrent brutality on an industrial scale, ensuring that jihadism is digitalized and brought firmly into the 21st century. Violent extremists are defined as "individuals who support or commit ideologically-motivated violence to further political goals." Violent Extremist threats can come from a range of violent extremist groups and individuals. The threat posed by violent extremism is neither constrained by international borders nor limited to any single ideology. Groups and individuals inspired by a range of personal, religious, political, or other ideological beliefs promote and use violence. Increasingly sophisticated use of the Internet, social media, and information technology by violent extremists adds an additional layer of complexity. Korea has also faced the threat of Islamic State which utilizes a remarkable media strategy. Thus, this research analyzed how IS has mobilized its members through social media to understand the media strategy. In addition, this study examined CVE policies of major countries to extract possible measures in countering emergence of violent extremists in Korea.
서정민(Seo, Jeongmin) 한국이슬람학회 2020 한국이슬람학회논총 Vol.30 No.1
Sectarian conflicts in the Middle East has become more acute recently. On the basis of a instrumentalist and constructivist and institutional approach, this study attempted to comparison between domestic and regional variables to understand of which variable has been more associated with sectarianism. Among the most important regional political transformers in the 21st century, this paper dealt with the Iraq War, the Arab Spring and Syrian civil war, and the conclusion of the Iran nuclear deal. As for the domestic political variable, the appointment of Saudi Arabia s crown prince was selected as the most important political transformer in Saudi political stability or regime survival. To compare the four domestic and regional transformers, frequencies of news articles containing all three search terms - Shia, Iran and Saudi Arabia - were quantitatively measured via Google News. A time series analysis applied to the irregular variation of the significant political variables confirms the hypothesis of the study that domestic political stability and regime survival have a more significant causal relationship with the Sunni-Shiite conflict than the regional political variables.
서정민 ( Jeongmin Seo ) 한국외국어대학교 중동연구소 2015 중동연구 Vol.34 No.1
the Arab public during the last several decades. However, a thorough scientific research on the trend and popularity of Arab dramas have not attracted a great attention. Thus, this paper aims at exploring the characteristics of Arab dramas in order to understand what the main culture codes are represented in major drama products. This research was based on qualitative culture code approach. This is because it may enable us to conduct more reliable analysis on various cultural phenomena in the Arab World. This can be said as an attempt to standardize the features of any cultural phenomenon. Through this analysis, cultural contents in major Arab dramas can be more scientifically measured. The data collected for this study are the most popular 20 Arab dramas between 2009 and 2011. This study examined and analyzed their contents of the collected dramas on the framework of 7 categorizations: dignity, dialogue, destiny, collectivity, authoritarianism, coercion. and commercialism. Through these qualitative analysis, this study would extract how different the Arab cultural codes are from those of the West and Korea