Results 81 to 90 of about 7,366 (234)

Biomechanical Analysis of 3D Printed and Thermoformed EVA Custom‐Made Mouthguard: Experimental and Finite Element Analyses

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Objective 3D printed materials have been evaluated for fabricating mouthguards; however, little is known about their biomechanical performance in preventing dental trauma. This study aimed to compare two 3D printed polymers and three ethylene vinyl acetate (EVA) sheets used for mouthguard fabrication regarding their mechanical ...
Airin Karelys Avendaño Rondon   +6 more
wiley   +1 more source

Kinetics and characterization of Gmelina arborea biolubricant via two-step transesterification

open access: yesSustainable Chemistry for the Environment
The increasing focus on environmental sustainability and the transition to renewable resources have driven interest in bio-based lubricants. Nonedible oils, such as those derived from Gmelina arborea seeds, present a viable alternative to conventional ...
M. Hadiza   +4 more
doaj   +1 more source

Development of lubricating oils suitable for use with liquid oxidizers Quarterly progress report, 1 Jun. - 31 Aug. 1970 [PDF]

open access: yes
Investigating ester and alkyl compounds as lubricating oils for use with liquid ...
Breed, L. W., Elliott, R. L.
core   +1 more source

Sustainable Photoinduced Frontal Polymerization of Acrylic Resins Reinforced by Biofillers

open access: yesPolymer Composites, Volume 47, Issue 9, Page 8525-8535, 10 May 2026.
Top left: Chemical structures of the monomers and initiators used. Top right: Effect of monomer ratios on frontal velocity. Bottom left: Schematic overview of the PIFP process as the reaction front moves within the mold. Bottom right: Application of PIFP for wood repair.
Huseyin Mirac Dizman   +2 more
wiley   +1 more source

Automated production of high rep rate foam targets [PDF]

open access: yes, 2016
Manufacturing low density targets in the numbers needed for high rep rate experiments is highly challenging. This report summarises advances from manual production to semiautomated and the improvements that follow both in terms of production time and ...
Haddock, D.   +4 more
core   +1 more source

Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions

open access: yesAdvanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley   +1 more source

Prepolymer dianhydrides [PDF]

open access: yes, 1980
A process for preparing dianhydrides that are miscible with hydroxyl prepolymers at moderate temperatures and can cure hydroxyl prepolymers to elastomers at moderate temperatures is disclosed.
Ingham, J. D., Rhein, R. A.
core   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Bioprocess development for biolubricant production using microbial oil derived via fermentation from confectionery industry waste [PDF]

open access: yes, 2018
Microbial oil produced from confectionery and wheat milling side streams has been evaluated as novel feedstock for biolubricant production. Nutrient-rich fermentation media were produced by a two-step bioprocess involving crude enzyme production by ...
Afroditi Chatzifragkou   +53 more
core   +1 more source

A review of the genotoxicity of trimethylolpropane triacrylate (TMPTA)

open access: yesMutation Research/Genetic Toxicology and Environmental Mutagenesis, 2018
Trimethylolpropane triacrylate (TMPTA) is a trifunctional acrylate monomer which polymerizes rapidly when exposed to sources of free radicals. It is widely used as a reactive diluent and polymer building block in the formulation of overprint varnishes, inks and a variety of wood, plastic and metal coatings.
David Kirkland, Paul Fowler
openaire   +2 more sources

Home - About - Disclaimer - Privacy