Results 61 to 70 of about 2,820 (212)

The tympanic covering layer contributes to basilar membrane elasticity potentially influencing human frequency resolution and speech perception

open access: yesJournal of Anatomy, EarlyView.
In this study we show for the first time that the human basilar membrane contains elastin produced by the so‐called tympanic covering layer. It is believed to play an important functional role in human cochlear tuning, particularly low frequencies linked to our remarkable speech and music perception.
Wei Liu   +9 more
wiley   +1 more source

Decoding the Structural Complexity of Fungal α‐ and β‐Glucan Matrix via Statistical Analysis of Solid‐State NMR Chemical Shifts

open access: yesIsrael Journal of Chemistry, Volume 66, Issue 4, July 2026.
Solid‐state NMR combined with principal component analysis enables quantitative classification of fungal α‐ and β‐glucan architectures in intact cell walls, revealing conserved triple‐helical β‐1,3‐glucan conformations across species and predominantly bundled‐sheet α‐1,3‐glucan assemblies with condition‐dependent polymorphism. Statistical clustering of
Ankur Ankur   +3 more
wiley   +1 more source

Variation in the Microfibril Angles in Resonance and Non-Resonance Spruce Wood (Picea abies [L.] Karst.)

open access: yesBioResources, 2016
Variation in microfibril angle (MFA) in the S2 of the tangent cell walls of resonance and non-resonance spruce wood (Picea abies [L.] Karst.) used in the manufacture of musical instruments was studied.
Ewa Fabisiak, Przemysław Mania
doaj   +1 more source

Combined analysis of microstructures within an annual ring of Douglas fir (Pseudotsuga menziesii) by dynamic mechanical analysis and small angle X-ray scattering

open access: yesJournal of Wood Science, 2022
Dynamic mechanical analysis (DMA) and small angle X-ray scattering (SAXS) measurements of water-saturated wood of Douglas fir (Pseudotsuga menziesii) in the temperature range of 0 ℃ to 100 ℃ were focused to clarify microstructural changes within an ...
Hiroaki Horiyama   +5 more
doaj   +1 more source

Temporal variation of microfibril angle in Eucalyptus nitens grown in different irrigation regimes [PDF]

open access: yesTree Physiology, 2002
In 1990, a 2-ha plantation of Eucalyptus nitens (Deane and Maiden) Maiden was established in southeastern Tasmania and subjected to different irrigation regimes. Point dendrometers were installed in March 1995 to monitor radial stem movement every 15 min over several growing seasons.
R, Wimmer, G M, Downes, R, Evans
openaire   +2 more sources

Effects of Polyamide‐6 Bulk Plasma Treatment on Morphology, Crystallinity and Mechanical Properties of Microfibrillar Composites

open access: yesPolymer Composites, Volume 47, Issue S2, Page S261-S274, 20 June 2026.
Microfibrillar composite containing highly oriented, plasma‐treated PA6 microfibrils embedded within the polymer matrix. ABSTRACT Plasma treatment is often used to alter chemical surface characteristics of fibers or polymers, improving dispersion of components and interfacial adhesion between incompatible constituents in composites.
Nam Kyeun Kim   +5 more
wiley   +1 more source

MODULUS OF ELASTICITY AND HARDNESS OF COMPRESSION AND OPPOSITE WOOD CELL WALLS OF MASSON PINE

open access: yesBioResources, 2012
Compression wood is commonly found in Masson pine. To evaluate the mechanical properties of the cell wall of Masson pine compression and opposite wood, nanoindentation was used. The results showed that the average values of hardness and cell wall modulus
Yanhui Huang,   +5 more
doaj  

Influence of Botanical Origin on the Optical, Surface, and Nanomechanical Properties of Nanocellulose‐Based Films: A Comparative Study

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 19, May 15, 2026.
Schematic representation of the processing and multiscale characterization of nanocellulose films from different botanical sources. ABSTRACT Although the influence of botanical origin on nanocellulose properties is well recognized, an integrated multiscale framework linking chemical composition, fractal surface descriptors, and nanomechanical behavior ...
Márcia da Silva Costa   +9 more
wiley   +1 more source

Variation of Microfibril Angle Within Individual Tracheids

open access: yes, 2007
Utilizing the orientation of soft-rot cavities, microfibril angles were measured in individual tracheids (pulped fibers) and thin sections of southern pine in order to determine the extent of variation.
Mark, Richard E.   +2 more
core  

The relation between indentation modulus, microfibril angle, and elastic properties of wood cell walls

open access: yes, 2011
Nanoindentation is a well known tool for identification of mechanical properties at the micrometer scale of materials. When applied to study wood cell walls the commonly used isotropic indentation theory is not applicable.
Hofstetter, K.   +12 more
core   +1 more source

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