Results 71 to 80 of about 800,776 (311)

Evaluation of rape-seed oil production, extraction and use as fuel in modified diesel engines [PDF]

open access: yes, 2009
End of project reportIt is now well established that rape-seed oil can provide a sustainable source of renewable fuel for diesel engines. The main problem is a high viscosity and vaporisation temperature, which could lead to pumping, atomisation and ...
Rice, B.
core  

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Mixed Systems of Quaternary Ammonium Foam Drainage Agent with Carbon Quantum Dots and Silica Nanoparticles for Improved Gas Field Performance

open access: yesNanomaterials
Foam drainage agents enhance gas production by removing wellbore liquids. However, due to the ultra-high salinity environments of the Hechuan gas field (salinity up to 32.5 × 104 mg/L), no foam drainage agent is suitable for this gas field.
Yongqiang Sun   +8 more
doaj   +1 more source

Oil Extraction and Evaluation from Yellow Horn Using a Microwave-Assisted Aqueous Saline Process

open access: yesMolecules, 2019
This study investigates an aqueous salt process (ASP) combined with microwave-assisted extraction (MAE) for the seed oil extraction from yellow horn (Xanthoceras sorbifolium Bunge).
Yulong Huang   +4 more
doaj   +1 more source

Aqueous enzyme assisted oil extraction from oilseeds and emulsion de-emulsifying methods: a review [PDF]

open access: yes, 2014
Regulatory, safety, and environmental issues have prompted the development of aqueousenzymatic extraction (AEE) for extracting components from oil-bearing materials.
Gordon, Mike   +2 more
core   +1 more source

Synthesis of a Novel Thermoresponsive S53P4 Bioactive Glass Extract–Poloxamer 407 Injectable Hydrogels: Assessment of Biocompatibility and Antimicrobial Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero   +9 more
wiley   +1 more source

Beyond the Boom: Ensuring Adequate Payment for Mineral Wealth Extraction [PDF]

open access: yes, 2011
Examines Ohio's severance tax rate and receipts on gas and oil extraction compared with other states, oil and gas production's costs to the state, and potential impact of a higher tax.
Wendy Patton
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

EXTRACTION OF JOJOBA OIL USING VARIOUS CONCENTRATIONS OF TWO DIFFERENT SOLVENTS

open access: yesThe Iraqi Journal of Agricultural science, 2019
The aim of this study was extraction of jojoba oil using different solvents. A mixture of water-hexane and water-ethanol are used as solvents to extract jojoba oil in a batch extraction process and compared with a pure solvent extraction process.
Abdulraheem & et al.
doaj   +1 more source

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

open access: yesAdvanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior   +6 more
wiley   +1 more source

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