Results 31 to 40 of about 1,598,453 (369)

A geometric result for composite materials with $C^{1,γ}$-boundaries [PDF]

open access: yesarXiv, 2022
In this paper, we obtain a geometric result for composite materials related to elliptic and parabolic partial differential equations. In the classical papers Li and Vogelius (2000), and Li and Nirenberg (2003), they assumed that for any scale and for any point there exists a coordinate system such that the boundaries of the individual components of a ...
arxiv  

Plasmonic Conglobation of Ultrathin Ag Nanofilms Far below Their Melting Points by Infrared Illumination

open access: yesApplied Sciences, 2018
Plasmon heating has been employed as a low-temperature annealing method for the conglobation of ultrathin Ag nanofilms into nanoparticles both on silicon and carbon spheres, with complex surface structures, simply under illumination with infrared light ...
Han Dai   +8 more
doaj   +1 more source

Effect of heat treatment temperature on properties of high thermal conductivity 3D C/C composites

open access: yesCailiao gongcheng, 2021
The three-dimensional carbon fiber fabric was densified by chemical vapor infiltration and precursor impregnation cracking composite process, and the high thermal conductivity 3D C/C composite material with density of 1.95 g/cm3 was obtained.
RUAN Jia-miao   +5 more
doaj   +1 more source

Damage of Composite Materials

open access: yesProcedia Engineering, 2013
AbstractComposite materials are used extensively in aerospace and more recently in automotive applications. Their high mechanical performances and good fatigue durability offer definite advantages compared to more traditional materials. However, in comparison with metal, damage mechanisms are complex and variability of the mechanical properties due to ...
Catherine Peyrac   +2 more
openaire   +2 more sources

Synthesis of Supported Catalysts by Dry Impregnation in Fluidized Bed [PDF]

open access: yes, 2007
The synthesis of catalytic or not composite materials by dry impregnation in fluidized bed is described. This process can be carried out under mild conditions from solutions of organometallic precursors or colloidal solutions of preformed nanoparticles ...
B. Chaudret   +7 more
core   +2 more sources

The elastic properties of composites reinforced by a 3D Voronoi fibre network with or without missing fibres [PDF]

open access: yesarXiv, 2022
Many composite materials, both natural and fabricated, process a Voronoi like architecture or microstructure. Furthermore, the stochasticity and connectivity of Voronoi tessellation endow the composite materials constructed by this kind of structures a wide range of desired properties including high and tuneable stiffness, high strength and good ...
arxiv  

Piezoelectric composite materials [PDF]

open access: yes, 1983
A laminated structural devices has the ability to change shape, position and resonant frequency without using discrete motive components. The laminate may be a combination of layers of a piezoelectrically active, nonconductive matrix material.
Kiraly, L. J.
core   +1 more source

Comparison of kinship‐identification methods for robust stock assessment using close‐kin mark–recapture data for Pacific bluefin tuna

open access: yesPopulation Ecology, Volume 67, Issue 2, Page 140-152, April 2025.
In this study, we compared three methods for kinship identification using different algorithms in samples of wild Pacific bluefin tuna and generated genotyping data. The three methods resulted in different numbers of inferred kinship pairs for both generated and actual data. Particularly for the half‐sibling pairs, considerable number of false‐positive
Yohei Tsukahara   +5 more
wiley   +1 more source

Body size evolution as a catalyst for diversification of copulation strategies and its spillover effects on genital evolution and phylogenetic divergence in terrestrial arthropods

open access: yesPopulation Ecology, EarlyView.
A scenario in which divergent selection derived from ecological environments leads to genital divergence through body size evolution. Abstract To explore how ecological diversity contributes to the establishment of ecologically similar species with sexual divergence, this review focuses on body size—an environmentally influenced trait that determines ...
Yutaka Okuzaki
wiley   +1 more source

Mechanical Properties of Aramid Fiber Fabrics and Composites Enhanced by Phthalic Anhydride Catalyzed with Anhydrous Aluminum Chloride

open access: yesApplied Sciences
The surface modification of aramid fiber plain fabric (PPTA) was conducted through phthalic anhydride treatment and anhydrous aluminum chloride (AlCl3) catalysis, aiming to enhance the interfacial bonding strength between aramid fiber fabric and ...
Yi Xiao   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy