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A cloud filtering method for microwave upper tropospheric humidity measurements
cloud filtering method microwave tropospheric humidity measurements
2008/12/24
The paper presents a cloud filtering method for upper tropospheric humidity (UTH) measurements at 183.31±1.00 GHz. The method uses two criteria: a viewing angle dependent threshold on the brightness t...
Filtering Efficiency of N95- and R95-Type Facepiece Respirators, Dust-Mist Facepiece Respirators, and Surgical Masks Operating in Unipolarly Ionized Indoor Air Environments
respirator mask ion emission fine and ultrafine aerosol
2016/3/30
The emission of unipolar air ions in the vicinity of a filtering facepiece respirator has been recently
shown to considerably enhance its respiratory protection efficiency. The effect is driven by th...