zur Neubewertung der Sprnchentwicklung der Kinder mit Cochlea-Implantat

KO Un 아시아장애사회학회 2010 아시아장애사회학연구 Vol.10 No.-

RTK GPS 측량에 의한 토공량 산정과 DTM생성에 관한 연구

박운용,송연경,배경호 동아대학교 건설기술연구소 2003 硏究報告 Vol.27 No.1

This paper deals with the calculation of earth volume in combination with RTK GPS and TS in the development district of residential land. It is the interpolation methods, the height , and the formula of volume calculation that the earth volume is calculated to compare with RTK and TS. As a result of comparing RTK with TS in the horizontal and vertical positions, the differences is 0.02m, 0.032m, and 0.100m at X, Y, and h. Through this results, the accuracy of RTK was confirmed, and took the average cut minus fill. The result was that TS has a lot of cut volume, and RTK has a lot of fill volume. and The cut and fill volume with RTK is much similar to that with TS, so it is applicable to the calculation of earth-volume. It is expected that RTK is applicable to a job site in no time and is the basis on the construction of DTM(Digital Terrain Model), the geometric correction of satellite imagery, and the construction of GIS database.

화상환자에서 혈청중 가용성 Interleukin-2 Receptor의 변동

이희성,이유진,이종량,백광진,하재성,전건수 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.2

Cell-mediated immunity frequently becomes severely impaired after burn. However, the cause of postburn immune dysfunction is unclear and controversy exists over both pathophysiology and clinical relevance of these abnormalities. This study was undertaken to invstigate the immune responses in vivo of patients with burn. Levels of soluble IL-2R, a sensitive marker of T-cell activation, were measured in 26 patients with burn. Serum soluble IL-2R levels in patients with burn were significantly higher than those of normal controls. Serum soluble IL-2R levels were correlated closely with the severity of the burn. The burn patients were classified according to the outcome. Patients with fatal outcom always showd a higher soluble IL-2R levels than survivors. Postburn sera significantly suppressed mitogen-indeced lymphocyte proliferation. These data indicate that soluble IL-2R might be useful parameters for monitoring of the clinical course in burn patients.

Stem Cells(Development and Differentiantion) : The hairy-related 6(her6) related to arterial-venous specification In zebrafish

( Koun S ),( Kim JD ),( Kim YS ),( Huh TL ) 한국생화학분자생물학회 (구 한국생화학회) 2008 생화학분자생물학회 춘계학술발표논문집 Vol.2008 No.-

Exploring the Use of Mobile Instant Messaging for Facilitating English as a Lingua Franca Communication among University EFL Students

Koun Choi 한국콘텐츠학회 2023 International Journal of Contents Vol.19 No.4

Sagittal Alignment of a Strut Graft Affects Graft Subsidence and Clinical Outcomes of Anterior Cervical Corpectomy and Fusion

Koun Yamauchi,Kazunari Fushimi,Kei Miyamoto,Akira Hioki,Katsuji Shimizu,Haruhiko Akiyama 대한척추외과학회 2017 Asian Spine Journal Vol.11 No.5

Study Design: Retrospective study. Purpose: The purpose of this study was to investigate the influence of sagittal alignment of the strut graft on graft subsidence and clinical outcomes after anterior cervical corpectomy and fusion (ACCF). Overview of Literature: ACCF is a common technique for the treatment of various cervical pathologies. Although graft subsidence sometimes occurs after ACCF, it is one cause for poor clinical results. Malalignment of the strut graft is probably one of the factors associated with graft subsidence. However, to the best of our knowledge, no prior reports have demonstrated correlations between the alignment of the strut graft and clinical outcomes. Methods: We evaluated 56 patients (33 men and 23 women; mean age, 59 years; range, 33–84 years; 45 with cervical spondylotic myelopathy and 11 with ossification of the posterior longitudinal ligament) who underwent one- or two-level ACCF with an autogenous fibular strut graft and anterior plating. The Japanese Orthopaedic Association (JOA) score recovery ratio for cervical spondylotic myelopathy was used to evaluate clinical outcomes. The JOA score and lateral radiograms were evaluated 1 week and 1 year postoperatively. Patients were divided into two groups (a straight group [group I] and an oblique group [group Z]) based on radiographic assessment of the sagittal alignment of the strut graft. Results: Group I showed a significantly greater JOA score recovery ratio (p <0.05) and a significantly lower graft subsidence than group Z (p <0.01). Conclusions: Our findings suggest that a straight alignment of the strut graft provides better clinical outcomes and lower incidence of graft subsidence after ACCF. In contrast, an oblique strut graft can lead to significantly increased strut graft subsidence and poor clinical results.

Spatiotemporal expression pattern of the zebrafish aquaporin 8 family during early developmental stages

Koun, S.,Kim, J.D.,Rhee, M.,Kim, M.J.,Huh, T.L. Elsevier 2016 Gene expression patterns Vol.21 No.1

<P>Aquaporin 8 (Aqp8) is a transmembrane protein that is selectively permeated by water and some small solutes, and physiologically contributes to acid-base equilibrium in the gastrointestinal tract. Here, we described the characterization and spatiotemporal expression pattern of zebrafish aqp8 (zaqp8) gene family, including zaqp8a.1, zaqp8a.2, and zaqp8b, during the early developmental stages. The expression of zaqp8a.1 started first in the lateral plate mesoderm at the 12-somite stage (ss) and then expanded sequentially to the dorsal aorta, intersegmental blood vessels and then to the dorsal longitudinal anastomotic vessel at 24 h post fertilization (hpf). At 28 hpf, expression of zaqp8a.1 was also detected in the embryonic heart tube. Four days post fertilization (dpf), strong zaqp8a.1 expression was detected in the gastrointestinal tract and liver. By 72 hpf, the expression of zaqp8a.2 was first detected in the primitive gut region but not detected in the liver. The expression of zaqp8b was first detected in the intermediate mesoderm at 10 ss. From 24 hpf to 6 dpf, the proximal convoluted segment of the embryonic kidney was marked by zaqp8b expression Overall, these differential expression patterns of aqp8a.1, zaqp8a.2, and aqp8b suggest that they possibly play distinct roles throughout the embryonic development by controlling or maintaining organ-specific cellular water homeostasis. Our study provides new evidence that organogenesis requires differential roles of Aqp8 proteins in zebrafish. (C) 2016 Elsevier B.V. All rights reserved.</P>

Theoretical insights into selective electrochemical conversion of carbon dioxide

Byoung Koun Min,Chanyeon Kim,Chan Woo Lee 나노기술연구협의회 2019 Nano Convergence Vol.6 No.8

Electrochemical conversion of CO2 and water to valuable chemicals and fuels is one of the promising alternatives to replace fossil fuel-based processes in realizing a carbon–neutral cycle. For practical application of such technologies, suppressing hydrogen evolution reaction and facilitating the activation of stable CO2 molecules still remain major challenges. Furthermore, high production selectivity toward high-value chemicals such as ethylene, ethanol, and even n-propanol is also not easy task to achieve. To settle these challenges, deeper understanding on underlying basis of reactions such as how intermediate binding affinities can be engineered at catalyst surfaces need to be discussed. In this review, we briefly outline recent strategies to modulate the binding energies of key intermediates for CO2 reduction reactions, based on theoretical insights from density functional theory calculation studies. In addition, important design principles of catalysts and electrolytes are also provided, which would contribute to the development of highly active catalysts for CO2 electroreduction.

중세 프랑스어 구어 표지 연구

백고운(Koun BAEK) 프랑스학회 2017 프랑스학연구 Vol.0 No.83

L objectif de cette étude est de montrer comment un adverbe médiéval devient un marqueur discursif, et de révéler sa particularité syntaxique et sémantique, observée pendant ce processus. En nous appuyant sur les travaux de Dostie(2004), nous inscrivons cette recherche dans le cadre de la pragmaticalisation. Nous considérons les adverbes médiévaux or, sus et çà comme des marqueurs discursifs, qui résultent d un processus de pragmaticalisation adverbiale. Notre analyse vise à mettre en évidence le déroulement de ce processus en moyen français. Pour cela, nous avons examiné les processus de pragmaticalisation des trois adverbes médiévaux (or, sus, çà) qui impliquent un sens commun de type ‘mouvement’. Ensuite, nous les avons comparés avec le marqueur discursif allez du français moderne, qui nous semble poursuivre le même chemin de changement linguistique, puisque ce verbe implique aussi une action de type ‘mouvement’. Les résultats auxquels aboutit cette étude nous montrent bien qu il faut focaliser notre attention sur les éléments sémantiques inhérents aux marqueurs en question. Plus précisément, les trois adverbes examinés et le marqueur allez réalisent tous l acte d injonction, ce qui nous semble dériver de leur noyau sémantique commun: le mouvement. Ce fait permet de les mettre dans un même groupe de marqueurs discursifs et même de les remplacer l un par l autre dans certains cas restreints. Mais il est à noter que si l injonction du marqueur allez est en quelque sorte générale, les trois marqueurs médiévaux impliquent encore leurs premiers sens lexicaux: le marqueur or renforce la réalisation immédiate d une action au moment de l énonciation, à savoir l instantanéité; et sus met l accent sur le fait que l allocuteur(destinataire de l acte d injonction) devient prêt à accomplir immédiatement l action demandée; le marqueur çà implique le mouvement vers le locuteur. Cependant, la pragmaticalisation des adverbes de type ‘mouvement’ accompagne, dans certains contextes particuliers, laquel processus un adverbe se pragmaticalise, et dans quel contexte l un peut remplacer l autre.

메콩을 보는 다채로운 시선과 세 가지 관점 : 윤순진 외, 『메콩유역 개발과 환경 협력의 딜레마와 거버넌스』(진인진, 2018)를 읽고

김고운(KoUn Kim) 서울대학교 아시아연구소 2020 아시아리뷰 Vol.9 No.2