Results 141 to 150 of about 3,157 (237)

Ni Supported on Urea‐Modified LaFeO3 Perovskite for Efficient Hydrogenolysis of Polyethylene Plastics

open access: yesChemCatChem, Volume 18, Issue 10, 27 May 2026.
A‐site vacancy engineering of LaFeO3 perovskites enables simultaneous tuning of Ni electronic structure and hydrogen spillover, leading to enhanced polyethylene hydrogenolysis. The optimized Ni/2U‐LFO catalyst exhibits superior activity and liquid/wax yield, highlighting a general strategy for designing efficient non‐noble‐metal catalysts for plastic ...
Jueun Kim   +6 more
wiley   +1 more source

Surface topographical changes measured by phase-locked interferometry [PDF]

open access: yes
An electronic optical laser interferometer capable of resolving depth differences of as low as 30 A and planar displacements of 6000 A was constructed to examine surface profiles of bearing surfaces without physical contact.
Fung, S. S., Lauer, J. L.
core   +1 more source

Multiresponse Tribological Ranking Alternatives of Al–Cu Alloys via an Integrated Taguchi Experimental Design, AHP Weighting, and WASPAS Decision Framework

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
To optimize aluminium–copper alloy compositions and tribological parameters for improved wear performance using an integrated hybrid MCDM approach. The Al–Cu alloy compositions were fabricated through die casting. Their tribological performance was evaluated and optimized using a hybrid Taguchi–AHP–WASPAS methodology under varying loads, sliding speeds,
S. P. Sundar Singh Sivam   +3 more
wiley   +1 more source

Study of lubricant jet flow phenomena in spur gears [PDF]

open access: yes
Lubricant jet flow impingement and penetration depth into a gear tooth space were measured at 4920 and 2560 rpm using a 8.89 cm (3.5 inch) pitch diameter 8 pitch spur gear at oil pressures from 70,000 to 410,000 n/sqm (10 psi to 60 psi).
Akin, L. S.   +2 more
core   +1 more source

Influence of Manganese Dioxide (MnO2) Coated Oil Palm Empty Fruit Bunch Spikelet Fibers on the Physicochemical and Mechanical Properties of Fiber Cement Composites

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
MnO2‐coated OPEFB fibers produced via a simple wet process showed smoother surfaces and significantly reduced water absorption in fiber cement composites, enhancing moisture resistance. ABSTRACT The use of natural fibers in cement‐based composites is increasingly encouraged as a sustainable alternative to synthetic fibers; however, their inherent ...
Jerum Biepinwoh Kengoh   +6 more
wiley   +1 more source

Extracellular Vesicles in Osteoarthritis: From Pathogenic Mediators to Engineered Therapeutics in a Precision Medicine Roadmap

open access: yesJournal of Extracellular Biology, Volume 5, Issue 5, May 2026.
ABSTRACT Osteoarthritis (OA) remains without disease‐modifying sssstherapies, in part due to biological heterogeneity and a hostile joint microenvironment that undermines one‐size‐fits‐all interventions. Extracellular vesicles (EVs) play a dual role in OA pathophysiology: endogenous EVs disseminate pro‐inflammatory and catabolic signals that propagate ...
Duc‐Hiep Bach   +2 more
wiley   +1 more source

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