Understanding of the levels of psychoactive drugs in air is important for assessing both occupational and environmental exposure.Intelligence on the usage and manufacture of illegal drugs can also be gained.Environmental analysis and determination of air quality has recently expanded from its traditional focus to new pollutant categories that inclu
Published records, original data from recent field work on all of the islands of Sponge Blender the Azores (NE Atlantic), and a revision of the entire mollusc collection deposited in the Department of Biology of the University of the Azores (DBUA) were used to compile a checklist of the shallow-water Polyplacophora of the Azores.Lepidochitona cf.ca
To Tumbler explore the clustered voltage balancing mechanism of the cascaded H-bridge static synchronous compensator (STATCOM), this paper analyzes the causes of unbalanced clustered voltage.The negative-sequence current caused by the compensation of unbalanced reactive power or detection and control errors and the zero-sequence voltage caused by v
Meteorological satellite can monitor the weather conditions in large scales effectively; some solutions and researches have been raised for cloud types identification in satellite cloud image analysis.Extracting the features of the satellite image and designing effective classifier play important roles in implementing cloud types identification sys