discharge crater Vitreous Carbon GC zirconia Lab on a Chip 춘계 춘계학술대회 학술대회 micro Glassy Carbon crater Characteristic Micro grinding PIEZO LabVIEW PRESM2025 유리질 탄소 포스터 정밀공학회 machining edge KSPE Needle WC Microneedle AI 소다라임유리 2024 Silicon Bi-LSTM DISCRIM 2018 실리콘 AMT Ceramic electrical discharge machining Soda Lime 한국정밀공학회 Soda-lime 유리질탄소 Silicon Wafer 정밀 EDM 2025 Conference VC 소다라임 JKSPE PRESM IJAMT Soda-lime glass cemented carbide international journal of advanced manufacturing technology ZrO2 elsevier Autumn 실리콘 웨이퍼 Materials & Design Microgrinding