Nitrogen solubility test under different pressures and temperatures for nitrogen-sealed transformers

Yield and nitrogen leaching in maize field under different nitrogen rates and partial root drying irrigation

Irrigation water is limiting for crop production in arid and semi-arid areas. Furthermore, excess nitrogen (N) application is a source of groundwater contamination. Partial root drying irrigation (PRD) can be used as water saving technique and a controlling measure of groundwater N contamination. The objectives of this investigation were to evaluate the effect of ordinary furrow irrigation (OFI...

Raman, infrared, and x-ray evidence for new phases of nitrogen at high pressures and temperatures

Eugene Gregoryanz, Alexander F. Goncharov, Russell J. Hemley, Ho-kwang Mao, Maddury Somayazulu, and Guoyin Shen Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, D.C. 20015 HPCAT, Carnegie Institution of Washington, APS, 9700 South Cass Avenue, Argonne, Illinois 60439 GSECARS, University of Chicago, APS, 9700 South Cass Avenue, Argonne, Illinois ...

Fatty acids profile of Spirulina platensis grown under different temperatures and nitrogen concentrations.

The influence of culture temperature and the concentration of sodium nitrate (NaNO3) on the gas-chromatographic profile of the fatty acids of the filamentous cyanobacterium Spirulina platensis was evaluated. We found that temperature was the most important factor and that the greatest amount of gamma-linolenic acid (GLA) was obtained at 30 degrees C, the fatty acid profile of the Spirulina cult...

Antioxidant Properties of Spirulina (Arthospira) platensis Cultivated Under Different Temperatures and Nitrogen Regimes

The main aim of this work was to investigate the effects of temperature and nitrogen concentration on the antioxidant potential of extracts from Spirulina (Arthospira) platensis biomass. S. platensis biomass obtained at 35oC and with 1.875 g.L or 2.5 g.L of sodium nitrate in the culture medium presented higher concentrations of phenolic compounds. The antioxidant potential of methanol extracts ...

Quartz Solubility in Potassium Hydroxide Solutions under Elevated Pressures and Temperatures with So4e Geological Applications