Valeriy Krivetskiy received his PhD in Chemistry in 2010 from the Lomonosov Moscow State University. He is a senior research associate at the Laboratory of Chemistry and Physics of Semiconductor and Sensor Materials, Department of Chemistry, Lomonosov Moscow State University. His scientific interests are covering the wide range of metal oxide gas sensor technology starting from gas sensing materials, through sensor device design and fabrication process to application methods, useful signal generation, and processing. The prime focus of his research lately is the stability of machine olfaction systems performance during long-term operation in real-world conditions.