Sensitivity Enhancement of Cannabinoids Hair Testing using Large-Volume Injection and Gas chromatography-Mass Spectrometry with Negative Ion Chemical ionization

by Yuan-Jhe, 張元哲
Published 2009

Measuring the Post''s Operating Performance in Taiwan

by Chang, Yuan-Che, 張元哲
Published 1996

An automatic classification algorithm for a large number of patent categorization

by Yuan-Che Chang, 張元哲
Published 2013

FP-tree（FrequentPatternTree）的調整維護技術研究

by Chang Yuan Che, 張元哲
Published 2001

Temperature Compensation for Fiber-Optic Oxygen Sensors

by Yuan-Che Chang, 張元哲
Published 2006

NUMERICAL SOLUTION OF NON-HERTZIAN CONTACT STRESS FOR AN ELASTIC HALF SPACE

by Yuan-Che Chang, 張元哲
Published 1995

Method Development of the New Generation Hair Testing by High Throughput Liquid Chromatography Tandem Mass Spectrometry

by Yuan-Jhe Chang, 張元哲
Published 2014