Results 91 to 100 of about 20,075 (229)

Hygrothermal Aging and Decoupled Axial‐Radial Compressive Failure Mechanisms in Glass Fiber Reinforced Epoxy Filament‐Wound Composite Tubes

open access: yesPolymer Composites, EarlyView.
Composite cylinder under axial and radial compression. ABSTRACT This study examines the hygrothermal degradation of filament‐wound glass fiber‐reinforced epoxy composite tubes designed for application as liners in oil and gas systems, focusing on their response under axial or radial compression.
Anderson L. dos Santos   +3 more
wiley   +1 more source

Effects of H2O, CO2, and N2 Air Contaminants on Critical Airside Strain Rates for Extinction of Hydrogen-Air Counterflow Diffusion Flames [PDF]

open access: yes
Coaxial tubular opposed jet burners (OJB) were used to form dish shaped counterflow diffusion flames (CFDF), centered by opposing laminar jets of H2, N2 and both clean and contaminated air (O2/N2 mixtures) in an argon bath at 1 atm.
Guerra, Rosemary   +3 more
core   +1 more source

Prediction of In‐Plane Shear Mechanical Properties Through Degree of Bonding Characterization as a Function of Automated Fiber Placement Processing Parameters for Carbon Fiber/PEKK Composite Laminates

open access: yesPolymer Composites, EarlyView.
Graphical abstract demonstrating manufacturing process and property characterization used in process modelling of interlaminar behavior across the range of process parameters. ABSTRACT Automated Fiber Placement (AFP) of fiber‐reinforced thermoplastic tapes enables rapid manufacturing by leveraging precise robotic lamination and in situ consolidation ...
Abd‐Elrahman Korayem   +6 more
wiley   +1 more source

Type Ia Supernova: Burning and Detonation in the Distributed Regime

open access: yes, 2007
A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived.
Damkohler G., Ropke F., S. E. Woosley
core   +1 more source

Ultimate Tensile Strength Evaluation of Bi‐Colored Ethylene‐Vinyl Acetate (EVA) Sheets In‐Office Manufactured With Different Heating Protocols

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Aim Bi‐colored mouthguards (MTG) are often sought by both professional and amateur athletes. Bi‐colored MTG can be made in the dental office from premanufactured bi‐colored EVA sheets or custom‐designed in the dental office for greater color variety.
Luiz Felipe Rodrigues Siqueira   +4 more
wiley   +1 more source

Power-Law Wrinkling Turbulence-Flame Interaction Model for Astrophysical Flames

open access: yes, 2014
We extend a model for turbulence-flame interactions (TFI) to consider astrophysical flames with a particular focus on combustion in type Ia supernovae.
Calder, Alan C.   +2 more
core   +1 more source

Examining the Role of Artificial Intelligence in Assessment: A Comparative Study of ChatGPT and Educator‐Generated Multiple‐Choice Questions in a Dental Exam

open access: yesEuropean Journal of Dental Education, EarlyView.
ABSTRACT Aim To compare the item difficulty and discriminative index of multiple‐choice questions (MCQs) generated by ChatGPT with those created by dental educators, based on the performance of dental students in a real exam setting. Materials and Methods A total of 40 MCQs—20 generated by ChatGPT 4.0 and 20 by dental educators—were developed based on ...
Nezaket Ezgi Özer   +4 more
wiley   +1 more source

The hidden science of haptics: A pedagogical review of tactile evaluation in cosmetics

open access: yesInternational Journal of Cosmetic Science, EarlyView.
This review explores the physiological basis of tactile perception and critically examines classical and emerging sensory methods used in cosmetics, advocating for broader methodological integration and recognition of sensory analysis in the field. Abstract Sensory analysis is a cornerstone of cosmetic development, yet remains underrepresented in peer ...
Morgane Postec   +2 more
wiley   +1 more source

AN EXPERIMENTAL INVESTIGATION UPON THE EFFECT OF OXYGEN ENRICHMENT ON THE LAMINAR BURNING VELOCITY OF (IRAQI LPG – O2 – N2) MIXTURE

open access: yesJournal of Engineering and Sustainable Development, 2016
The present study is focused on the effect of oxygen enrichment (as oxidizer) on the flame characteristics of the premixed flame of Iraqi Liquefied Petroleum Gas (LPG), which consider the first measurement of laminar premixed flame speed for (LPG ...
Jalal M. Jalil   +2 more
doaj  

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