Results 271 to 280 of about 3,421,347 (332)

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

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Multivariate dispersion as a measure of beta diversity

Ecology Letters, 2006
AbstractBeta diversity can be defined as the variability in species composition among sampling units for a given area. We propose that it can be measured as the average dissimilarity from individual observation units to their group centroid in multivariate space, using an appropriate dissimilarity measure.
Marti J Anderson, Kari E Ellingsen
exaly   +6 more sources

PARTITIONING DIVERSITY INTO INDEPENDENT ALPHA AND BETA COMPONENTS

Ecology, 2007
Existing general definitions of beta diversity often produce a beta with a hidden dependence on alpha. Such a beta cannot be used to compare regions that differ in alpha diversity. To avoid misinterpretation, existing definitions of alpha and beta must be replaced by a definition that partitions diversity into independent alpha and beta components ...
Lou Jost
exaly   +3 more sources

Rarefaction and extrapolation with beta diversity under a framework of Hill numbers: The iNEXT.beta3D standardization

Ecological Monographs, 2023
Anne Chao, Simon Thorn, Chun-Huo Chiu
exaly   +2 more sources

Partitioning the turnover and nestedness components of beta diversity

Global Ecology and Biogeography, 2010
Andres Baselga
exaly   +2 more sources

How Should Beta-Diversity Inform Biodiversity Conservation?

Trends in Ecology and Evolution, 2016
Jacob B Socolar, James J Gilroy, William E Kunin   +2 more
exaly   +2 more sources

Beta-Diversity in Tropical Forests

Science, 2002
In their Perspective, Duivenvoorden and colleagues discuss an analysis of the similarity in species composition between different regions of Amazonian and Panamanian tropical forests ( Condit et al.).
Kalle, Ruokolainen, Hanna, Tuomisto
  +6 more sources

Universal beta-diversity-functioning relationships are neither observed nor expected.

Trends in Ecology & Evolution, 2023
Widespread evidence shows that local species richness (α-diversity) loss hampers the biomass production and stability of ecosystems. β-Diversity, namely the variation of species compositions among different ecological communities, represents another ...
Fons van der Plas, J. Hennecke, Jonathan M. Chase, J. van Ruijven, K. Barry   +4 more
semanticscholar   +1 more source