Results 31 to 40 of about 533,861 (287)

On the Insignificance of Photochemical Hydrocarbon Aerosols in the Atmospheres of Close-in Extrasolar Giant Planets [PDF]

, 2004
The close-in extrasolar giant planets (CEGPs) reside in irradiated environments much more intense than that of the giant planets in our solar system. The high UV irradiance strongly influences their photochemistry and the general current view believed ...
-T, Anthony Y., Lee, ., Liang, Mao-Chang, Parkinson, Christopher D., Seager, Sara, Yung, Yuk L.   +5 more
core   +3 more sources

Effect of Cu(NO₃)₂ and Cu(CH₃COO)₂ Activating Additives on Combustion Characteristics of Anthracite and Its Semi-Coke

Energies, 2020
The process of anthracite and its semi-coke combustion in the presence of 5 wt.% (in terms of dry salt) additives of copper salts Cu(NO3)2 and Cu(CH3COO)2 was studied. The activating additives were introduced by an incipient wetness procedure.
Kirill Larionov, Konstantin Slyusarskiy, Svyatoslav Tsibulskiy, Anton Tolokolnikov, Ilya Mishakov, Yury Bauman, Aleksey Vedyagin, Alexander Gromov   +7 more
doaj   +1 more source

Extractive purification of hydro-treated gas oil with N-methylpyrrolidone [PDF]

Journal of the Serbian Chemical Society, 2017
The purification of a hydrotreated gas oil by liquid-liquid extraction with N-methylpyrrolidone as solvent has been studied. The results showed that this method, under appropriate experimental conditions, has reduced sulphur content of the gas ...
Bedda Kahina, Hamada Boudjema, Kuzichkin Nikolay V., Semikin Kirill V.   +3 more
doaj   +1 more source

Subsurface Characterization of the Merija Anticline’s Rooting Using Integrated Geophysical Techniques: Implications for Copper Exploration

Geosciences
This study investigates the subsurface rooting of the Merija anticline in the Missour Basin, Morocco, with a focus on copper mineralization exploration. A sequential geophysical workflow was implemented, combining gravity surveys, electrical resistivity (
Mohammed Boumehdi, Hicham Khebbi, Doha Dchar, Lahsen Achkouch, Anwar Ain Tagzalt, Nour Eddine Berkat, Mohammed Magoua, Youssef Hahou, Othman Sadki   +8 more
doaj   +1 more source

Correlation of Gas Quality with Hydrodynamic Parameters in Transmission Networks [PDF]

MATEC Web of Conferences, 2019
Natural gases are a mixture of hydrocarbons. Their composition determines the basic variables that need to be taken into account in the calculation of transport or gathering systems.
Eparu Cristian Nicolae, Neacsu Sorin, Neacsa Adrian   +2 more
doaj   +1 more source

Petroleum hydrocarbons in fresh waters: a preliminary desk study and bibliography [PDF]

, 1980
A literature survey was carried out into the effects of petroleum hydrocarbons in freshwater, from the toxicity, biodegradability and concentration aspects.
Horne, J.E.M., Jones, J.G., Moorhouse, P., Powell, D.L.   +3 more
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A comprehensive analysis of innovations to overcome challenges in horizontal well hydraulic fracturing in tight reservoirs: a case study on the lower Devonian in Berkine Basin, Algeria

Journal of Petroleum Exploration and Production Technology
Horizontal wells combined with multi-stage hydraulic fracturing represent the most effective approach for extracting resources from tight reservoirs. Hydraulic fracturing involves injecting formulated fluids at high pressure to fracture the formation ...
Dhiya Eddine Nouri, Khaled Benyounes, Faycal Smail, Houssem Eddine Belhouchet   +3 more
doaj   +1 more source

3D Geomechanical Model Construction for Wellbore Stability Analysis in Algerian Southeastern Petroleum Field

Energies, 2022
The main objective of this research work was the wellbore stability evaluation of oil and gas wells based on a 3D geomechanical model, which as constructed using seismic inversion in a southeastern Algerian petroleum field.
Said Eladj, Mohamed Zinelabidine Doghmane, Tanina Kenza Lounissi, Mabrouk Djeddi, Kong Fah Tee, Sofiane Djezzar   +5 more
doaj   +1 more source

Heterogeneous reactions of particulate matter-bound PAHs and NPAHs with NO3/N2O5, OH radicals, and O3 under simulated long-range atmospheric transport conditions: reactivity and mutagenicity. [PDF]

, 2014
The heterogeneous reactions of ambient particulate matter (PM)-bound polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs (NPAHs) with NO3/N2O5, OH radicals, and O3 were studied in a laboratory photochemical chamber. Ambient PM2.5 and PM10 samples were
Arey, Janet, Atkinson, Roger, Dashwood, Roderick H, Jariyasopit, Narumol, Schrlau, Jill, Simonich, Staci L Massey, Tao, Shu, Yu, Tian-Wei, Zimmermann, Kathryn   +8 more
core   +2 more sources