Results 11 to 20 of about 533,861 (287)

Hydrocarbon influence on denitrification in bioturbated Mediterranean coastal sediments [PDF]

open access: yes, 1997
An in situ experiment has been carried out inbioturbated Mediterranean coastal marine sediments (Gulfof Fos) in order to study the influence of hydrocarbons ondenitrification after 1, 4 and 6 months. In theabsence of hydrocarbons in the control sediments,
Bertrand, Jean-Claude   +5 more
core   +4 more sources

Defect Chemistry and Chemical Looping Performance of La1−xMxMnO3 (M = Sr, Ca, (x = 0–0.5)) Perovskites

open access: yesNanomaterials, 2022
La1−xMxMnO3 (M = Sr, Ca, (x = 0–0.5)) materials of the perovskite structure are synthesized by a co-precipitation method. They are subsequently investigated for their performance in a chemical looping process (fuel CH4) using thermogravimetric analysis ...
Antigoni Evdou   +5 more
doaj   +1 more source

A G4MP2 theoretical study on the gas phase enthalpies of formation for various polycyclic aromatic hydrocarbons (PAHs) and other C~10~ through C~20~ unsaturated hydrocarbons [PDF]

open access: yes, 2011
Gas phase enthalpies of formation at 298.15 and 1 atm (Δ~f~H~(g),298K~) were calculated using the atomization approach at the G4MP2 composite method level of theory for 86 polyaromatic hydrocarbons (PAHs) and other C~10~ through C~20~ unsaturated ...
Kaya Forest, Sierra Rayne
core   +2 more sources

Organic aerosol formation downwind from the Deepwater Horizon oil spill. [PDF]

open access: yes, 2011
A large fraction of atmospheric aerosols are derived from organic compounds with various volatilities. A National Oceanic and Atmospheric Administration (NOAA) WP-3D research aircraft made airborne measurements of the gaseous and aerosol composition of ...
Ahmadov, R   +27 more
core   +1 more source

New model for standpipe pressure prediction while drilling using Group Method of Data Handling

open access: yesPetroleum, 2022
The continuous evaluation of the measured Stand Pipe Pressure (SPP) against a modeled SPP value in real-time involves the automatic detection of undesirable drilling events such as drill string washouts and mud pump failures.
Mohamed Riad Youcefi   +2 more
doaj   +1 more source

Measurements of PAN, alkyl nitrates, ozone, and hydrocarbons during spring in interior Alaska [PDF]

open access: yes, 1996
Measurements of the atmospheric mixing ratios of ozone, peroxyacetylnitrate (PAN), hydrocarbons, and alkyl nitrates were made in a boreal forest ecosystem in the interior of Alaska from March 15 to May 14, 1993.
Atlas, E   +4 more
core   +2 more sources

A REVIEW OF HYDROGEN STORAGE IN GEOLOGICAL FORMATIONS [PDF]

open access: yesRomanian Journal of Petroleum & Gas Technology
This review presents a thorough analysis of the technical, geological, and economic aspects of Underground Hydrogen Storage (UHS), positioning it as a key enabler for large-scale deployment of clean hydrogen supply chains.
Rami Doukeh   +5 more
doaj   +1 more source

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments [PDF]

open access: yes, 1994
The in vitro fate of the saturated hydrocarbon fraction (SF) of Arabian Light crude oil has been studied in PVC cores filled with a coastal marine sediment defaunated by sieving.
Aller   +27 more
core   +3 more sources

Energy management strategies in the oil industry for chemical and thermal environment pollution reduction

open access: yesMATEC Web of Conferences, 2017
This paper depicts certain thermodynamic processes possibly involved in the oil industry specific activities operation and/or proper equipment maintenance.
Avram Lazăr   +2 more
doaj   +1 more source

Marine crude-oil biodegradation: a central role for interspecies interactions [PDF]

open access: yes, 2012
The marine environment is highly susceptible to pollution by petroleum, and so it is important to understand how microorganisms degrade hydrocarbons, and thereby mitigate ecosystem damage. Our understanding about the ecology, physiology, biochemistry and
Folwell, Benjamin D   +3 more
core   +1 more source

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