Acknowledgement
이논문은 2019년도 정부(교육과학기술부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임(NRF-2019R1I1A2A01051610). 압출공정 실험에 도움을 주신 비전플라닉스의 조이근 대표, 이피존의 장준수 대표께 감사드립니다.
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