Results 31 to 40 of about 509,958 (319)

Recent Development of Flax Fibres and Their Reinforced Composites Based on Different Polymeric Matrices [PDF]

open access: yes, 2013
This work describes flax fibre reinforced polymeric composites with recent developments. The properties of flax fibres, as well as advanced fibre treatments such as mercerization, silane treatment, acylation, peroxide treatment and coatings for the ...
Jinchun Zhu   +8 more
core   +1 more source

Chitosan Nanofiber and Cellulose Nanofiber Blended Composite Applicable for Active Food Packaging

open access: yesNanomaterials, 2020
This paper reports that, by simply blending two heterogeneous polysaccharide nanofibers, namely chitosan nanofiber (ChNF) and cellulose nanofiber (CNF), a ChNF–CNF composite was prepared, which exhibited improved mechanical properties and antioxidant ...
Le Van Hai   +5 more
doaj   +1 more source

Evolution of composition filters to event composition

open access: yesProceedings of the 27th Annual ACM Symposium on Applied Computing, 2012
Various different aspect-oriented (AO) languages are intro- duced in the literature, and naturally are evolved due to the research activities and the experiences gained in applying them to various domains. Achieving modularity, compos- ability and abstractness in the implementation of crosscut- ting concerns are typical requirements that these ...
Malakuti Khah Olun Abadi, Somayeh   +1 more
openaire   +1 more source

A composite Higgs with a heavy composite axion [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We consider the strong dynamics associated with a composite Higgs model that simultaneously produces dynamical axions and solves the strong CP problem. The strong dynamics arises from a new Sp or SU(4) hypercolor gauge group containing QCD colored hyperfermions that confines at a high scale.
Tony Gherghetta, Minh D. Nguyen
openaire   +3 more sources

Effect of h-BN and Nano-SiO2 Fillers on the High-Temperature Tribological Properties of PEEK/PI-Based Composites

open access: yesLubricants, 2023
PEEK is being used increasingly often in seals, bushings, bearings, and other moving parts due to its excellent mechanical and tribological properties.
Mengjiao Li   +5 more
doaj   +1 more source

Concave Compositions [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2011
Concave compositions are compositions (i.e. ordered partitions) of a number in which the parts decrease up to the middle summand(s) and increase thereafter. Perhaps the most surprising result is for even length, concave compositions where the generating function turns out to be the quotient of two instances of the pentagonal number theorem with ...
openaire   +2 more sources

Material selection for automated dry fiber placement using the analytical hierarchy process

open access: yesAdvanced Manufacturing: Polymer & Composites Science, 2018
Dry fiber tapes have become an alternative to pre-impregnated tapes for automated fiber placement. However, their industrial adoption is inhibited by high upfront research and development cost.
Laura Veldenz   +4 more
doaj   +1 more source

An In-Situ Formed Tunneling Layer Enriches the Options of Anode for Efficient and Stable Regular Perovskite Solar Cells

open access: yesNano-Micro Letters, 2022
Highlights It is first disclosed that the key to the efficient regular Ag-perovskite solar cells (PSCs) is a tunneling layer (silver iodide, AgI) that is in situ formed by the natural reaction between Ag and the migrated iodide.
Xuesong Lin   +10 more
doaj   +1 more source

Realizing reversible phase transformation of shape memory ceramics constrained in aluminum

open access: yesNature Communications, 2023
Small-scale shape memory ceramics exhibit superior shape memory or superelasticity properties, while their integration into a matrix material and the subsequent attainment of their reversible tetragonal-monoclinic phase transformations remains a ...
Wangshu Zheng   +7 more
doaj   +1 more source

Influence of loading rate, alkali fibre treatment and crystallinity on fracture toughness of random short hemp fibre reinforced polylactide bio-composites

open access: yes, 2011
Plane-strain fracture toughness (KIc) of random short hemp fibre reinforced polylactide (PLA) bio-composites was investigated along with the effect of loading rate, fibre treatment and PLA crystallinity.
Alan Fernyhough   +7 more
core   +1 more source

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