Sentence examples for in ppmv from inspiring English sources
The response time of the sensor in ppmv level is less than 4 min and at higher concentration of moisture, it shows quasi-linear dependency on moisture content.
differs from volume mixing ratio, often expressed in ppmv, etc., by the corrections for non-ideality of gases.
From analysis of the reaction kinetics, the initial reaction between Ag NPs and H2S gas was revealed to be a first-order reaction in Ag, and the initial reaction rate was proportional to the gas concentration in the ppmv range.
A series of hydroxyapatite (Hap; of ideal formula: Ca10(PO4)6(OH)2) supported MnOx materials (MnxHap; x = Mn wt.%:2.5, 5.0, 10, 20, and 30 based on MnO2) has been tested prepared by wet impregnation using manganese (II) nitrate tetrahydrate as metal precursor followed by calcination at 400 °C in toluene total oxidation (800 ppmv in dry air) at 220 °C for 40 h.
The average worldwide tropospheric mixing ratio of methane has increased by 11% from 1.52 parts per million by volume (ppmv) in January 1978 to 1.684 ppmv in September 1987, for an increment of 0.016 ± 0.001 ppmv per year.
In this work, experiments are performed on a model flue-gas (32 m3·havingaving a SO2 concentration in the range 500 2000 ppmv, treated in a packed column filled with a structured packing (Mellapak 250X®) at 1 atm and 25 °C, with liquid-to-gas ratio between 1.06 and 3.44 kg·kg−1.
A positive bias of about 0.2 0.4 ppmv in the MIPAS data in the 35 40 km region has also been found.
The monitoring of carbon dioxide (CO2) in anthrosol showed CO2 concentrations ([CO2]) up to 10,000 ppmv in dependence on external conditions.
Half-saturation point for the direct plant fertilisation was set to 150 ppmv in the version FocL and to 460 ppmv in the FocNL.
In the 1950s climate scientists began to track the annual increase in average global carbon dioxide concentrations in the atmosphere, which rose from approximately 316 parts per million by volume (ppmv) in 1959 to 390 ppmv a half century later.
For the same air preheating the NO emissions would be of approximately 1000 ppmv in flame combustion mode.
