Crack in the Taegeukgi : Symbolisation of Nationalism and the Changes in the State-System in Korea

김현준 한국국회학회 2024 한국과 세계 Vol.6 No.2

Focusing on the popular usage of the national flag in South Korea, this study aims to investigate the relationship between informal nationalism and the formal order of the state in Korea. Historically, from its legal adoption as an official symbol and its proliferation into society, South Korea’s national flag, Taegeukgui, has experienced changes in its meaning. It has been used for varied purposes: legitimising the military and developmental state, mobilising the democratic resistance against the authoritarian state, commercialising the national image in the market, and rehabilitating neo-conservative forces. Based on the methodology of discursive institutionalism, the author attempts to elucidate that this historically constructed hegemonic taken-for-grantedness of the national symbols gets broken when certain political groups use them to emphasise their exclusive meaning in a symbol. This study highlights that as those groups explicitly use the national symbols to legitimise their political opinion, they implicitly show the crisis of the state-system order, which they believe in as a legitimate agency of the nation. This implication will be helpful in a broader understanding of the similar usage of the national flags recently arising around the world in right-wing populist rallies.

물 분자막의 두께와 윤활특성의 상관관계에 대한 분자시뮬레이션 연구

김현준,허세곤,Kim, Hyun-Joon,Heo, Segon 한국트라이볼로지학회 2022 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.38 No.5

This paper presents a numerical investigation of the influence of water molecule thickness on frictional behavior at the nanoscale using molecular dynamics simulation. Three different models, comprising water thin films of various thicknesses, were built, and indentation and sliding simulations were performed using the models. Various normal loads were applied by indenting the Si tip on the water film for the sliding simulation to evaluate the interplay between the water thin film thickness and the normal load. The results of the simulations showed that the friction force generally increased with respect to the normal load and thickness of the water thin film. The friction coefficient varied with respect to the normal load and the water film thickness. The friction coefficient was the smallest under a moderate normal force and increased with decreasing or increasing normal loads. As the water film became thicker, the contact area between the tip and water film became larger. Under well-lubricated conditions, the friction force was proportional to the contact area regardless of the water film thickness. As the normal force increased above a critical condition, the water molecules beneath the Si tip spread out; thus, the film could not provide lubrication. Consequently, the substrate was permanently deformed by direct contact with the Si tip, while the friction force and friction coefficient significantly increased. The results suggest that a thin water film can effectively reduce friction under relatively low normal load and contact pressure conditions. In addition, the contact area between the contacting surfaces dominates the friction force.

변분 유한요소법에 의한 비균질 비등방성 매질에서의 전파특성 ( Wave Propagation in an Inhomogeneous Anisotropic Medium through Variational Finite Element Method )

김현준,홍용인,김두경,김정기 한국전자파학회 1992 전자파기술 Vol.3 No.1

한라산을 지나가는 대류형 강수시스템의 강수입자분포 특성

김현준,이근옥,정성아,이동인,Hiroshi Uyeda 한국기상학회 2015 한국기상학회 학술대회 논문집 Vol.2015 No.10

복있는교회 중고등부 정자람 선생님

김현준 장로회신학대학교 기독교교육연구원 2014 교육교회 Vol.438 No.-

신경손상을 동반한 하요추부 골절의 치료 결과

김현준,이규열,강민수,정일권,이철원,한동훈 대한척추외과학회 2010 대한척추외과학회지 Vol.17 No.1

Study design: A retrospective study. Objectives: To evaluate the clinical results of surgical treatment for a lower lumbar fracture with a neurological deficit. Summary of Literature Review: There are several methods for treating lower lumbar fractures with neurological deficits but no definitive guidelines have been established. Materials and Methods: From 2000 to 2008, this study reviewed 26 patients who had undergone surgery to treat a lower lumbar fracture with a neurological deficit and could be followed up for more than 12 months. The changes in the kyphotic angle, changes in the vertebral body height, compromise ratio of the spinal canal, recovery of neurological deficit, and clinical results were evaluated. Results: There were 15, 7 and 4 cases with a third, fourth and fifth lumbar fracture, respectively. There are 19, 2 and 5 cases of an unstable bursting fracture, chance fracture and translational injury, respectively. The compromise ratio of the spinal canal improved from 67.2±9.4% to 16.4±4.6%, and the changes in the kyphotic angle improved from 14.5±3.2°to 7.6±2.4°postoperatively and 9.7±4.3 at the last follow-up. The changes in the vertebral body height improved from 41.3±8.4% to 23.4±6.3% and the bone union rate was 92.3%. The neurological deficit recovered with 1.27°according to the Frankel classification and good functional results were obtained in 84.6% of cases. Conclusions: Recovery of the neurological deficit and good clinical results were obtained with the recovery of the kyphotic angle and bone union with posterior decompression and instrumented posterolateral fusion in lower lumbar fractures with a neurological deficit. 연구계획: 후향적 연구목적: 신경손상을 동반한 하요추부 골절시 후방 직접 감압술 및 기기 고정술, 후외방 유합술로 치료한 결과를 분석하였다. 선행문헌의 요약: 신경손상을 동반한 하요추부 골절에 대한 여러가지 치료 방법들이 있으나 아직 확실한 치료지침은 없는 실정이다. 대상 및 방법: 2000년부터 2008년까지 신경 손상을 동반한 하부요추 골절로 수술적 치료를 시행하고 12개월 이상 추시 가능한 환자 26명을 대상으로 하였다. 술 전, 술 후 후만각 변화, 전방 추체의 높이 변화, 척추강 골 침범율 및 신경 손상 회복 정도와 임상 결과를 알아 보았다. 결과: 총 26예 중 제3 요추 골절이 15예, 제4 요추 골절이 7예, 제5 요추 골절이 4예 였으며 불안정성 방출성 골절이 19예, Chance 골절이 2예, 전위성 골절이 5예로 나타났다. 수상 당시 척추강 골 침범율은 67.2±9.4%에서 16.4±4.6%로 호전 보였으며, 국소분절 시상 후만각의 변화는 수상당시 14.5±3.2도에서 술후 7.6±2.4도, 최종추시에서 9.7±4.3도였고, 추체의 높이 변화는 수상당시 41.3±8.4%에서 술후 23.4±6.3%로 나타났으며 골절의 유합률은 92.3%였다. 신경손상의 회복은 Frankel등급으로 측정하여 1.27등급의 회복을 보였으며, 84.6%에서 만족할 만한 기능적 결과를 얻었다. 결론: 신경손상을 동반한 하요추부 골절시 후방 직접 감압술 및 기기 고정술, 후외방 유합술 치료로 국소분절 시상 후만각의 복원, 견고한 골유합을 통해 신경손상의 회복 및 좋은 임상적 결과를 얻을 수 있었다.

롤링 피스톤형 회전식 압축기의 동적거동 해석 ( Dynamics of Rolling piston Type Rotary Compressor )

김현준,강태식,이세정,최동훈 대한기계학회 1998 대한기계학회 춘추학술대회 Vol.- No.-

유역 물순환 해석 및 개선시설 평가 소프트웨어 - CAT (Catchment hydrologic cycle Assessment Tool) -

김현준,장철희,노성진,Kim, Hyeon-Jun,Jang, Cheol-Hui,No, Seong-Jin 한국수자원학회 2011 물과 미래(한국수자원학회지) Vol.44 No.8

운동, 활성산소, 그리고 노화

김현준,최종환 충북대학교 평생체육연구소 2000 平生體育硏究所 論文集 Vol.12 No.-

The relationship of exercise-induced superoxide radicals and aging have been reviewed as they pertain to wellness. Mechanism of superoxide radicals formation and antioxidants were presented, and certain diseases from oxidative stress were shown to be implicated in promoting aging. These limited illustrations of exercise-induced superoxide radicals and aging are evidence that the property of intensity and duration exercise is important not only in keeping human health and physical fitness from oxidative stress, but also for the maintenance of well-being and quality of life. Even though exercise may induce superoxide radical, exercise is essential for human wellness if we are to select exercise condition(intensity, duration, time, and type of exercise) properly.

초경량 블록 암호 CHAM에 대한 CPA 공격과 대응기법 제안

김현준,김경호,권혁동,서화정 한국정보처리학회 2020 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.9 No.5

Ultra-lightweight password CHAM is an algorithm with efficient addition, rotation and XOR operations on resource constrained devices. CHAM shows high computational performance, especially on IoT platforms. However, lightweight block encryption algorithms used on the Internet of Things may be vulnerable to side channel analysis. In this paper, we demonstrate the vulnerability to side channel attack by attempting a first power analysis attack against CHAM. In addition, a safe algorithm was proposed and implemented by applying a masking technique to safely defend the attack. This implementation implements an efficient and secure CHAM block cipher using the instruction set of an 8-bit AVR processor. 초 경량암호 CHAM은 자원이 제한된 장치 상에서 효율성이 뛰어난 덧셈, 회전연산, 그리고 XOR 연산으로 이루어진 알고리즘이다. CHAM은 특히 사물인터넷 플랫폼에서 높은 연산 성능을 보인다. 하지만 사물 인터넷 상에서 사용되는 경량 블록 암호화 알고리즘은 부채널 분석에 취약할 수 있다. 본 논문에서는 CHAM에 대한 1차 전력 분석 공격을 시도하여 부채널 공격에 대한 취약성을 증명한다. 이와 더불어 해당 공격을 안전하게 방어할 수 있도록 마스킹 기법을 적용하여 안전한 알고리즘을 제안하고 구현 하였다. 해당 구현은 8-비트 AVR 프로세서의 명령어셋을 활용하여 효율적이며 안전한 CHAM 블록암호를 구현하였다.