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The negative air ions (NAI) are used for the removal of particles or droplets from the air. In this study, three types of piezoelectric cold plasma generators (PCPG), in combination with cylindrical electrostatic ion filters, are applied for NAI production. The high voltage on the filter cylinder is induced by the electric field from the piezoelectric transformer of the PCPG. To achieve the dc bias, the cylinder of the electrostatic filter is connected to the ground over ultrafast switching diodes. The ion concentrations are measured for different airflows, PCPG powers, and electrostatic filter geometries. The NAI concentration in the order of magnitude of 107 cm−3, and a negative-to-positive ion concentration ratio of over 200 is reached. The production of ozone is evaluated and the PCPG configuration with a minimum ozone production rate is proposed. The ozone concentration below 60 ppb is reached in the airflow of 90 m3/h.
The distribution of propranolol, pindolol and atenolol between
Article: Monoclonal gammopathy of renal significance (MGRS
HEMOGLOBIN AND ITS DERIVATIVES Colloidal Agents Derived From
White Chalk Powder, 50 Kg, Packaging Type: Bag at Rs 5/kilogram in New Delhi, Chalk Powder
Frontiers The fragmentomic property of plasma cell-free DNA
Hemato, Free Full-Text
Cancer type classification using plasma cell-free RNAs derived
Median total (sum of free and bound) plasma concentration–time
The Process for Giving Plasma, Step-by-Step
Plasma contains ultrashort single-stranded DNA in addition to
Plasma cell-free DNA (cfDNA) as a predictive and prognostic marker
Current challenges and best practices for cell-free long RNA
Plasma-Free Blood as a Potential Alternative to Whole Blood for
An Estimation of Plasma Vitamin A and the Vitamin A Absorption
Plasma Friendly Arial Font.. (see pic) - Unsupported - Langmuir, Fonts Stencils
