Results 41 to 50 of about 115,892,745 (158)

Two Closely Related Butterflies Show Pseudo‐Concordant Patterns of Geographic Differentiation in a Heterogeneous Mountain Region

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
Phylogeographic pseudo‐concordance among species—coincident spatial structuring coupled with differing levels of intraspecific differentiation—has rarely been documented in heterogeneous regions. We report a clear case in two mountain butterfly species and show how the high density of spatial sampling and the integration of phenotypic and genomic ...
Luca Gregnanin   +6 more
wiley   +1 more source

Best practices in `0 K' DFT energy calculations on molecular crystal structures

open access: yesActa Crystallographica Section C, Volume 82, Issue 8, Page 383-400, August 2026.
This article describes best practices for `zero Kelvin' energy calculations on molecular crystals and is targeted for non‐experts who would like to perform their own calculations or assess the accuracy and validity of such calculations reported in the scientific literature.This article describes best practices for `zero Kelvin' energy calculations on ...
Jacco van de Streek, Erin R. Johnson
wiley   +1 more source

Effect of curing temperature on the behaviour of UHPFRC at elevated temperatures

open access: yesConstruction and Building Materials, 2018
Ultra-high performance fibre reinforced concrete is one of the construction materials that is still in need of more research to evaluate its performance under fire, particularly regarding explosive spalling.
Charles Kahanji   +3 more
semanticscholar   +1 more source

Global patterns and processes of establishment risk by non‐indigenous marine fish

open access: yesJournal of Applied Ecology, Volume 63, Issue 8, August 2026.
Niche overlap may be critical to consider, even in areas that appear environmentally unsuitable or poorly connected for NIS. Preserving the intrinsic biotic resistance posed by native species can improve the effectiveness of targeted conservation measures.
Antoni Vivó‐Pons   +5 more
wiley   +1 more source

Modelling of cyclic behaviour of Haynes 282 at elevated temperatures

open access: yes, 2014
In this paper, the cyclic modelling of Haynes 282 is investigated for a range of elevated temperatures. A calibration of a plastic model including cyclic hardening/softening has been performed and a temperature dependence for the material parameters has ...
Brommesson, Rebecka   +3 more
core   +1 more source

Thresholds of facilitation and competition—Climate modulates the growth–density relationship in Quercus robur

open access: yesJournal of Ecology, Volume 114, Issue 8, August 2026.
In forestry, tree growth is strongly influenced by stand density. Using Nelder trials across a broad climatic gradient in Europe, the authors found that tree growth responds non‐linearly to density, with shifts from competition to facilitation and corresponding density thresholds.
Dominik Ambs   +9 more
wiley   +1 more source

Problems and prospects of Si3N4 materials for applications at temperatures above 1400 deg C

open access: yes, 2022
S.449-456Based on the understanding of the limiting mechanisms during service in structural applications at elevated temperatures, the potential of silicon nitride materials up to temperatures of 1500 deg C is discussed.
Herrmann, M.   +3 more
core   +1 more source

Chemie und Pharmazie in die Nachhaltigkeit einbetten

open access: yesAngewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Chemie und Pharmazie sind mit ihren Produkten und Prozessen grundlegend für unseren hohen Lebensstandard. Es ist wesentlich, ihre Verbindung mit der Nachhaltigkeit zu verstehen, damit sie auf nachhaltige Weise nachhaltig zur Nachhaltigkeit beitragen können.
Klaus Kümmerer
wiley   +1 more source

Biodegradable materials in dentistry: A comprehensive review of current trends [PDF]

open access: yes
The dental industry has witnessed a paradigm shift towards biodegradable materials, driven by the need for sustainable and environmentally friendly solutions.
Kambala, Meena Lakshmi Reddy   +3 more
core   +1 more source

Behaviour of Al6061-T6 alloy at different temperatures and strain-rates: Experimental characterization and material modelling

open access: yesMaterials Science & Engineering: A, 2018
The simulation of impact scenario against a structure requires the use of material models able to reproduce all aspects of the mechanical behaviour of the involved materials; plastic flow is one of the main aspects to be reproduced.
M. Scapin, A. Manes
semanticscholar   +1 more source

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