Results 31 to 40 of about 137,620 (330)

Syntrophic Hydrocarbon Degradation in a Decommissioned Off-Shore Subsea Oil Storage Structure

open access: yesMicroorganisms, 2021
Over the last decade, metagenomic studies have revealed the impact of oil production on the microbial ecology of petroleum reservoirs. However, despite their fundamental roles in bioremediation of hydrocarbons, biocorrosion, biofouling and hydrogen ...
Adrien Vigneron   +4 more
doaj   +1 more source

High-Temperature, High-Pressure Viscosities and Densities of n-Hexadecane, 2,2,4,4,6,8,8-Heptamethylnonane, and Squalane Measured Using a Universal Calibration for a Rolling-Ball Viscometer/Densimeter [PDF]

open access: yes, 2019
The development of reference correlations for viscous fluids is predicated on the availability of accurate viscosity data, especially at high pressure, high temperature (HPHT) conditions.
Gavaises, M.   +4 more
core   +1 more source

High-quality physiology of Alcanivorax borkumensis SK2 producing glycolipids enables efficient stirred-tank bioreactor cultivation

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Glycine-glucolipid, a glycolipid, is natively synthesized by the marine bacterium Alcanivorax borkumensis SK2. A. borkumensis is a Gram-negative, non-motile, aerobic, halophilic, rod-shaped γ-proteobacterium, classified as an obligate hydrocarbonoclastic
Tobias Karmainski   +5 more
doaj   +1 more source

Ozone and alkyl nitrate formation from the Deepwater Horizon oil spill atmospheric emissions [PDF]

open access: yes, 2012
Ozone (O3), alkyl nitrates (RONO2), and other photochemical products were formed in the atmosphere downwind from the Deepwater Horizon (DWH) oil spill by photochemical reactions of evaporating hydrocarbons with NOx (=NO+NO2) emissions from spill response
Aikin, KC   +13 more
core   +1 more source

H4-Alkanes: A new class of hydrogen storage material?

open access: yes, 2017
The methane-based material (H$_2$)$_4$CH$_4$, also called H4M for short, is in essence a methane molecule with 4 physisorbed H$_2$ molecules. While H4M has exceptionally high hydrogen storage densities when it forms a molecular solid, unfortunately, this
Harrison, D.   +2 more
core   +1 more source

Volatile hydrocarbons inhibit methanogenic crude oil degradation [PDF]

open access: yes, 2014
Methanogenic degradation of crude oil in subsurface sediments occurs slowly, but without the need for exogenous electron acceptors, is sustained for long periods and has enormous economic and environmental consequences.
Angela eSherry   +6 more
core   +3 more sources

KOtBu as a Single Electron Donor? Revisiting the Halogenation of Alkanes with CBr4 and CCl4

open access: yesMolecules, 2018
The search for reactions where KOtBu and other tert-alkoxides might behave as single electron donors led us to explore their reactions with tetrahalomethanes, CX4, in the presence of adamantane.
Katie J. Emery   +4 more
doaj   +1 more source

Avanços metodológicos na determinação do consumo de ruminantes em pastejo Advances in methods for determining animal intake on pasture

open access: yesRevista Brasileira de Zootecnia, 2007
Avanços metodológicos são, usualmente, conseqüência direta de avanços conceituais e tecnológicos. No caso da estimativa do consumo em pastejo, os recentes avanços conceituais relativos ao processo de busca e apreensão da forragem pelo ruminante ...
Paulo César de Faccio Carvalho   +5 more
doaj   +1 more source

Role of Internal Motions and Molecular Geometry on the NMR Relaxation of Hydrocarbons

open access: yes, 2018
The role of internal motions and molecular geometry on $^1$H NMR relaxation times $T_{1,2}$ in hydrocarbons is investigated using MD (molecular dynamics) simulations of the autocorrelation functions for in{\it tra}molecular $G_R(t)$ and in{\it ter ...
Asthagiri, Dilip   +5 more
core   +1 more source

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