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