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Catalytic Graphitization Behavior of Mesophase Pitch-Based Carbon Fibers
강성현,김관우,안계혁,김병주 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
본 연구에서는 메조페이스 피치계 탄소섬유의 촉매 흑연화를 위해 촉매를 도입하였다. 메조페이스 피치계 탄소섬유는 안정화(300°C, 1 시간) 후 촉매를 도입하였다. 촉매를 도입한 섬유와 도입하지 않은 메조페이스 피치계 탄소섬유를 1200°C, 1700°C에서 흑연화를 진행하였다. 촉매 흑연화된 탄소섬유의 표면형태는 주사전자현미경(SEM)을 이용하여 관찰하였다. 구조적 변화는 X-ray 회절 분석기(XRD)와 Raman 분광기(Raman)에 의해 분석되었고, Multimeter를 이용하여 전기적 특성을 확인하였다. 결과적으로 촉매를 도입한 섬유는 메조페이스 피치계 탄소섬유의 전기적 특성을 증가시켰으며 촉매를 도입하지 않은 섬유보다 낮은 온도에서 더 나은 흑연화를 나타내었다.
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Carbon Fibers from Low-density Polyethylene Using a Hybrid Stabilization Technique
강성현,김관우,안계혁,김병주 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
In this study, a manufacturing method of LDPE-based carbon fibers was studied using a hybrid stabilization technique. The LDPE precursor fibers were primarily cross-linked with the various conditions, and then they have stabilized again in the sulfuric acid under 100oC. The hybrid-stabilized fibers were carbonized at a temperature of 900°C. The thermal properties of hybrid-stabilized fibers were analyzed by a DSC and a TGA. The surface morphology, microstructure, and physical properties of the resulting carbon fibers were analyzed by SEM, XRD, and UTM, respectively. From the SEM, XRD, and mechanical strength test results, final fibers were identified as well-manufactured carbon fibers.
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강성현,이도은,최정현,김광우,유영수,강형원,정문주 대한한방신경정신과학회 2023 동의신경정신과학회지 Vol.34 No.3
Objectives: The purpose of this study was to identify the doctor-patient relationship perceived by doctors in clinical settings and the effect of doctor-patient relationships on treatment schemes. A qualitative case study was conducted for this purpose. Methods: In-depth interviews were conducted with five oriental medicine doctors and doctors working in clinical settings using a semi-structured questionnaire. Transcription and coding were performed to analyze the data. By analyzing each case individually through within-case analysis, we attempted to find themes that emerged from the research subjects’ experiences with establishing relationships with patients. Afterward, a cross-case analysis was conducted to identify the meaning of the experiences through commonalities and differences. Results: Within-case analysis confirmed the thoughts and emotions of the research participants in recognizing, defining, and participating in doctor-patient relationships while delivering treatments. Case-to-case analysis derived two themes, seven categories, and 20 meaningful units for doctor-patient relationships. Conclusions: The study found that a doctor-patient relationship regarding patient treatment could be established based on the doctor’s ‘professional qualifications’ and ‘human qualities’. In the future, it is necessary to present an educational model for relationship-based intervention techniques and personality maturity. Follow-up research should be conducted to enable the establishment of therapeutic relationships between doctors and patients.
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강성현 역사문제연구소 2025 역사비평 Vol.- No.150
이 논문은 대한민국 초기 계엄의 역사와 법적 성격을 분석하며, 계엄법 없는 계엄 상태에서 국가폭력이 어떻게 제도화되고 법적으로 정당화되었는지 살펴본다. 특히, 2024년 12월 3일 비상계엄 선포와 친위쿠데타 시도가 실패로 돌아가면서 계엄과 국가긴급권의 위헌성과 위법성이 본격적으로 논의되고 있는 현재의 상황을 배경으로, 계엄의 역사적, 법적 본질을 재검토한다. 논문은 미군정기 ‘10월 항쟁’, 여순사건, 제주 4·3사건에서 선포된 계엄상태를 시작으로, 계엄법이 탄생한 과정과 그 법적, 정치적 쟁점을 분석한다. 또한, 한국전쟁 시기에 발동된 대통령 긴급명령과 계엄상태의 상호작용을 통해 국가긴급권이 민간인 대량 학살 등 내전적 폭력을 어떻게 확대했는지 분석한다. 논문은 계엄이 단순한 비상조치가 아닌 국가폭력을 법적으로 정당화하고 체계화하는 도구로 기능했음을 밝힌다. 12·3 비상계엄 선포를 계기로, 국가긴급권의 본질적 한계를 극복하기 위한 법적·제도적 개혁의 필요성을 제기한다. 이를 통해 계엄과 국가폭력의 역사적 교훈을 성찰하고, 민주주의와 인권을 보장하는 새로운 체제의 가능성을 모색한다. This paper analyzes the history and legal nature of martial law in the early Republic of Korea, focusing on how state violence was institutionalized and legally justified in the absence of formal martial law statutes. In particular, it examines the historical and legal essence of martial law against the backdrop of the failed attempt at a self-coup following the declaration of emergency martial law on December 3, 2024, which has sparked active debates on the unconstitutionality and illegality of martial law and emergency powers. The study begins with an analysis of martial law during the U.S. military government’s 1946 ‘October Uprising’, the ‘Yeosu-Suncheon Incident’, and the ‘Jeju 4·3 Incident’, exploring the process through which martial law legislation emerged and its legal and political implications. Additionally, it investigates the interaction between presidential emergency orders and martial law during the Korean War, shedding light on how emergency powers facilitated large-scale civilian massacres and internal violence. This paper argues that martial law was not merely an emergency measure but a tool for legally legitimizing and institutionalizing state violence. Using the December 3 emergency martial law declaration as a reference point, it highlights the need for legal and institutional reforms to address the fundamental flaws of emergency powers. Finally, the study reflects on the historical lessons of martial law and state violence while exploring pathways toward a system that upholds democracy and human rights.
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