오씨아 공호성 한흥구 마르코바 마카렌코 2024-01-21T01:01:14Z 2024-01-21T01:01:14Z 2022-01-10 2007-06 1229-9189 https://pubs.kist.re.kr/handle/201004/134332 Chromatic Parameters in the Condition Monitoring of Synthetic Hydraulic Oils Article 3 KSTLE International Journal, v.8, no.1, pp.1 - 6 KSTLE International Journal 8 1 1 6 Chromatic ratio total contamination index color sensor oil degradation