Results 41 to 50 of about 231 (111)

Flow and heat transfer features during propane (R290) and isobutane (R600a) boiling in a tube

open access: yesInternational Journal of Thermofluids, 2023
The purpose of this paper is to present a numerical study of the flow and heat transfer characteristics during boiling of two hydrocarbon-based natural refrigerants, namely propane (R290) and isobutane (R600a) in a smooth horizontal tube of 10.0 mm ...
Ramzi Fenouche, Ahmed Ouadha
doaj   +1 more source

Numerical study of the flow in a two-phase nozzle for trilateral flash cycle applications

open access: yesInternational Journal of Thermofluids, 2023
A two-phase nozzle is a critical component in organic flash systems, and its design and operation must be carefully considered to handle the complex two-phase flow of the working fluid and achieve system performance.
Abdelkerim Kaddour, Ahmed Ouadha
doaj   +1 more source

Mechanical performance of cement mortar with olive pomace aggregates and olive mill wastewater: an experimental investigation

open access: yesCogent Engineering, 2023
This study investigates the potential use of olive aggregates (OA) in the production of cementitious materials as a substitute for natural sand to reduce excessive use of this resource.
M. EL Boukhari   +4 more
doaj   +1 more source

Electrodeposition of Copper-Silver Alloys from Aqueous Solutions: A Prospective Process for Miscellaneous Usages

open access: yesCompounds
The electrodeposition of copper (Cu), silver (Ag), and their alloys has been a subject of interest since the 19th century. Primarily due to their exceptional features such as good mechanical hardness and electrical conductivity, high resistance to ...
Sofya Efimova   +4 more
doaj   +1 more source

Development of elastically graded titanium alloys for biomedical applications [PDF]

open access: yesMATEC Web of Conferences, 2020
Recent works have shown that the elastic mismatch observed at the bone / implant interface could be responsible for stress shielding issues causing bone resorption phenomena and potentially implant failures.
DELANNOY Stéphanie   +4 more
doaj   +1 more source

3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 11, Page 2623-2654, November 2025.
Abstract Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system.
Léna Jossé   +9 more
wiley   +1 more source

Bi-objective robust optimization of machined surface quality and productivity under vibrations limitation

open access: yesMATEC Web of Conferences, 2015
In this contribution, a bi-objective robust optimization of cutting parameters, with the taking into account uncertainties inherent in the tool wear and the tool deflection for a turning operation is presented.
Sahali M.A.   +3 more
doaj   +1 more source

Advancing Paper Industry Applications with Extruded Cationic Wheat Starch as an Environmentally Friendly Biopolymer

open access: yesPolysaccharides, 2023
Within the domain of starch modification, the study delved into cationization of wheat starch through a laboratory-scale twin-screw extruder, exploring various processing conditions.
Ahmed Tara
doaj   +1 more source

Water Ageing of Epoxies: Effect of Thermal Oxidation

open access: yesApplied Research, Volume 4, Issue 1, February 2025.
Analysis of thermally oxidized DGEBA‐TETA epoxy networks. Implication on polymer–water interaction (sorption, diffusion, clustering). ABSTRACT Epoxy samples obtained by curing bisphenol A diglycidyl ether with triethylenetetramine are thermally oxidized at 160°C under air. The impact on water sorption is investigated by water uptake recorded by Dynamic
Nawfel Tahraoui   +3 more
wiley   +1 more source

Investigation of the Physicochemical, Thermal, and Mechanical Properties of a Single Fiber Extracted From Imperata Cylindrica Plant

open access: yesAdvances in Materials Science and Engineering, Volume 2025, Issue 1, 2025.
This study investigated the physical, chemical, thermal, and mechanical properties of Imperata cylindrica (IC) fibers extracted using 2 wt%, 4 wt%, and 6 wt% NaOH. Since 6 wt% NaOH yielded complete removal, fibers obtained from this concentration were furthermore treated with 1% concentration of silane before characterization.
Tchinda Yemlong Sorelle   +11 more
wiley   +1 more source

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