Results 21 to 30 of about 181,974 (269)

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

Strategy Composition in Compositional Games [PDF]

open access: yes, 2013
When studying games played on finite arenas, the arena is given explicitly, hiding the underlying structure of the arena. We study games where the global arena is a product of several smaller, constituent arenas. We investigate how these "global games" can be solved by playing "component games" on the constituent arenas.
openaire   +1 more source

The influence of yarn fineness and number of yarn layers on in-plane shear properties of 3-D woven fabric

open access: yesAdvanced Composites Letters, 2020
The 3-D layer-to-layer angle-interlock woven fabric (LLAIWF) has good deformability on a complicated contour, which offers them a large application potential in the field of aerospace.
Liuxiang Guan, Jialu Li, Ya’nan Jiao
doaj   +1 more source

Compositional Generalization Requires Compositional Parsers

open access: yesCoRR, 2022
A rapidly growing body of research on compositional generalization investigates the ability of a semantic parser to dynamically recombine linguistic elements seen in training into unseen sequences. We present a systematic comparison of sequence-to-sequence models and models guided by compositional principles on the recent COGS corpus (Kim and Linzen ...
Pia Weißenhorn   +3 more
openaire   +2 more sources

Virtual data-driven optimisation for zero defect composites manufacture

open access: yesMaterials & Design
Manufacture-induced defects are a critical issue in composites applications that result in high volumes of material waste and costly experimental trials to help mitigate this.
Yi Wang   +4 more
doaj   +1 more source

« Composition, composition »…

open access: yesTransatlantica, 2013
Il s’agit de s’interroger sur ce qui se joue dans l’écriture littéraire et sur ce qui explique la difficulté qu’ont les non littéraires à saisir le travail de la langue et la composition esthétique de l’œuvre, lesquels assurent la puissance cognitive du texte littéraire et le distinguent fondamentalement des autres objets de fiction auquel il est ...
openaire   +2 more sources

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