Results 61 to 70 of about 921,849 (300)

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz   +6 more
wiley   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

Alternative methodology for isolation of biosurfactant-producing bacteria

open access: yesBrazilian Journal of Biology
Wide biosurfactant application on biorremediation is limited by its high production cost. The search for cheaper biossurfactant production alternatives has guided our study.
N. Krepsky   +3 more
doaj   +1 more source

Influence of PSC Changes in The Upstream Sector From Cost Recovery System into Gross Split Towards The Obligation to Pay Land and Building Tax

open access: yesMimbar Hukum, 2019
The scheme of profit sharing contracts has been significantly changed due to the enactment of Ministerial Regulation of Energy and Mineral Resources No. 8/2017 concerning the Gross Split Revenue Sharing Contract on January 16, 2017.This research focused ...
Irine Handika Ikasari
doaj   +1 more source

Air quality measurements in the western Eagle Ford Shale

open access: yesElementa: Science of the Anthropocene, 2020
The Eagle Ford Shale in southern Texas remains one of the most productive oil and gas regions in the US. Like the Permian Basin and Bakken Shale, ubiquitous natural gas flaring serves as an uncertain source of trace gas emissions within the Eagle Ford. A
Geoffrey S. Roest, Gunnar W. Schade
doaj   +1 more source

Mineral resources governance, the UK petroleum fiscal regime: a historical evaluation [PDF]

open access: yes, 2014
After 40 years of oil investments, the UK is now a mature oil province. During these 40 years or so, the UK Government has changed the type of governance it uses to manage its petroleum resources.
Abdo, H
core  

Petroleum hydrocarbons and limiting nutrients in Macura reptantia, Procambarus clarkii and benthic sediment from Qua Iboe Estuary, Nigeria [PDF]

open access: yes, 2008
The levels of total petroleum hydrocarbons in two commonly consumed benthopelagic shellfishes, Macura reptantia and Procambarus clarkii, harvested from benthic sediment of Qua Iboe Estuary were determined using a gas chromatography with flame-ionization ...
Benson, N. U.   +3 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

"Dry-column" chromatography of plant pigments [PDF]

open access: yes, 1973
Separation of plant pigments which can be accomplished on thin-layer silica plates with mixture of petroleum ether, halocarbon, acetone, and polar solvent can be readily translated into dry-column technique that yields reproducible chromatograms after ...
Lehwalt, M. F.   +2 more
core   +1 more source

Industrial structural geology : principles, techniques and integration : an introduction [PDF]

open access: yes, 2015
The authors wish to acknowledge the generous financial support provided in association with this volume to the Geological Society and the Petroleum Group by Badley Geoscience Ltd, BP, CGG Robertson, Dana Petroleum Ltd, Getech Group plc, Maersk Oil North ...
Bond, Clare E   +4 more
core   +1 more source

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