Results 61 to 70 of about 1,911,436 (333)

A non-destructive analytic tool for nanostructured materials : Raman and photoluminescence spectroscopy

open access: yes, 2004
Modern materials science requires efficient processing and characterization techniques for low dimensional systems. Raman spectroscopy is an important non-destructive tool, which provides enormous information on these materials. This understanding is not
A. Singha   +5 more
core   +1 more source

Transmission electron microscopy analysis of some transition metal compounds for energy storage and conversion [PDF]

open access: yes, 2017
This work was preliminarily supported by the National Key Research Program of China (2016YFA0202604), the Natural Science Foundation of China (21476271), NSFC-RGC (21461162003) and Natural Science Foundation (2014KTSCX004 and 2014A030308012) of Guangdong
Fan, Wenjie   +4 more
core   +1 more source

Extreme pressure conditions of BaS based materials: Detailed study of structural changes, band gap engineering, elastic constants and mechanical properties [PDF]

open access: yesProcessing and Application of Ceramics, 2019
A Density Functional Theory (DFT) study has been performed in order to investigate behaviour of barium sulfide (BaS) at high pressures, and relationship between computed properties, in great detail.
Dejan Zagorac   +4 more
doaj   +1 more source

Insightful classification of crystal structures using deep learning

open access: yes, 2018
Computational methods that automatically extract knowledge from data are critical for enabling data-driven materials science. A reliable identification of lattice symmetry is a crucial first step for materials characterization and analytics.
Ghiringhelli, L. M.   +3 more
core   +2 more sources

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Evaluation of lattice curvature and crystalline homogeneity for 2-inch GaN homo-epitaxial layer

open access: yesAIP Advances, 2018
We evaluated the lattice curvature, crystallinity, and crystalline homogeneity of a GaN layer on a free standing GaN substrate using lattice orientation measurements, θ rocking curves, and reciprocal space mapping from synchrotron X-ray diffraction ...
Okkyun Seo   +11 more
doaj   +1 more source

The apparent surface free energy of rare earth oxides is governed by hydrocarbon adsorption

open access: yesiScience, 2022
Summary: The surface free energy of rare earth oxides (REOs) has been debated during the last decade, with some reporting REOs to be intrinsically hydrophilic and others reporting hydrophobic. Here, we investigate the wettability and surface chemistry of
Junho Oh   +8 more
doaj   +1 more source

Polymer reinforcement with nanoparticles [PDF]

open access: yes, 2008
The Polymers and Composites research group belongs to the Materials Science and Engineering and Chemical Engineering Department of the University Carlos III of Madrid, Spain.
Baselga Llidó, Juan
core   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

open access: yesPopulation Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

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