Results 21 to 30 of about 672,871 (380)
Evidence for ammonia-bearing species on the Uranian satellite Ariel supports recent geologic activity [PDF]
, 2020 We investigated whether ammonia-rich constituents are present on the surface of the Uranian moon Ariel by analyzing 32 near-infrared reflectance spectra collected over a wide range of sub-observer longitudes and latitudes. We measured the band areas and depths of a 2.2-{\micron} feature in these spectra, which has been attributed to ammonia-bearing ...
arxiv +1 more source
Ammonia Abundance Derived from Juno MWR and VLA Observations of Jupiter [PDF]
, 2022 The vertical distribution of trace gases in planetary atmospheres can be obtained with observations of the atmosphere's thermal emission. Inverting radio observations to recover the atmospheric structure, however, is non-trivial, and the solutions are degenerate.
arxiv +1 more source
Experimental study on nitrification in a submerged aerated biofilter [PDF]
, 2004 The aim of the present work was to evaluate the performance of a semi-pilot scale BAF in order to obtain a highly polished effluent in terms of removal of organic matter, suspended solids and ammonia and to observe the influence of temperature, pH and ...
Chiavola, Agostina +3 more
core +2 more sources
Determination of Blood Ammonia Using the Ammonia Checker [PDF]
Annals of Clinical Biochemistry: International Journal of Laboratory Medicine, 1983 A new diffusion method employing bromocresol green for determination of blood ammonia (Ammonia CheckerR) using disposable reagent test-plates and a pocket-size colorimeter with direct readout of results was compared with an enzymatic method. The values obtained with the Ammonia Checker were slightly lower than those with the enzymatic method.
C H Gips, J R Huizenga
openaire +3 more sources
The influences of ammonia on aerosol formation in the ozonolysis of styrene: roles of Criegee intermediate reactions [PDF]
Royal Society Open Science, 2018 The influences of ammonia (NH3) on secondary organic aerosol (SOA) formation from ozonolysis of styrene have been investigated using chamber experiments and quantum chemical calculations. With the value of [O3]0/[styrene]0 ratios between 2 and 4, chamber
Qiao Ma +5 more
doaj +1 more source
Nitro-compounds and GHG exhaust emissions of a pilot diesel-ignited ammonia dual-fuel engine under various operating conditions [PDF]
arXiv, 2023 In the transportation sector, ammonia used as a power source plays a significant role in the scenario of carbon neutralization. However, the engine-out emissions correlations of ammonia-diesel dual-fuel (DF) engines are still unclear, especially the nitro-compounds of great concern and GHG. In this study, the engine-out emissions are evaluated by using
arxiv
Biogas upgrading by chemical absorption using ammonia rich absorbents derived from wastewater [PDF]
, 2014 The use of ammonia (NH3) rich wastewaters as an ecological chemical absorption solvent for the selective extraction of carbon dioxide (CO2) during biogas upgrading to ‘biomethane’ has been studied.
Jefferson, Bruce +2 more
core +1 more source
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2006 Agricultural production presents one of the biggest producers of greenhouse gases. Between the most significant belongs carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), ozon (O3) and hydrogen sulphide (H2S). The work deals with classification of
Patrik Burg +2 more
doaj +1 more source
Ammonia masers toward G358.931-0.030 [PDF]
, 2023 We report the detection of ammonia masers in the non-metastable (6, 3), (7, 5) and (6, 5) transitions, the latter is the first unambiguous maser detection of that transition ever made. Our observations include the first VLBI detection of ammonia maser emission, which allowed effective constrain of the (6, 5) maser brightness temperature.
arxiv +1 more source
Frontiers in Sustainable Food Systems, 2019 The largest source of ammonia (NH3) emissions to the atmosphere is NH3 from agriculture, the majority of which arise from livestock manure. The NH3 emitted is a threat to human health through the formation of fine particles, causes eutrophication of ...
Sven G. Sommer +2 more
doaj +1 more source