Results 51 to 60 of about 24,530,151 (408)

Current situation of research on test methods for elastic modulus and Poisson’s ratio of single crystal superalloys

open access: yesJournal of Aeronautical Materials, 2019
In view of the anisotropic characteristics of elastic constants of single crystal superalloys and other materials, this paper summarizes two main existing testing methods for measuring elastic moduli and Poisson’s ratio of single crystal superalloys ...
ZHAO Pengtao, YU Huichen, HE Yuhuai
doaj   +1 more source

High-Purity Corundum as Support for Affinity Extractions from Complex Samples

open access: yesSeparations, 2022
Nonporous corundum powder, known as an abrasive material in the industry, was functionalized covalently with protein binders to isolate and enrich specific proteins from complex matrices.
Jule L. Völzke   +6 more
doaj   +1 more source

In situ nanocompression testing of irradiated copper. [PDF]

open access: yes, 2011
Increasing demand for energy and reduction of carbon dioxide emissions has revived interest in nuclear energy. Designing materials for radiation environments necessitates a fundamental understanding of how radiation-induced defects alter mechanical ...
Hosemann, P   +3 more
core   +3 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

Prospecting for organic fungicides and resistance inducers to control scab (Venturia inaequalis) in organic apple production [PDF]

open access: yes, 2006
As a part of the REPCO project we are prospecting for plant extracts and other materials to control apple scab in order to find substitutes for copper fungicides in organic apple production.
Bengtsson, Marianne   +3 more
core  

In-depth analysis of FeNi-based nanoparticles for the oxygen evolution reaction

open access: yesScientific Reports
This study investigates the effect of varying iron-to-nickel ratios on the catalytic performance of Fe-Ni oxide nanoparticles (NPs) for the oxygen evolution reaction (OER).
Heydar Habibimarkani   +6 more
doaj   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Garbage Beam [PDF]

open access: yes, 2017
Located in a hot desert climate area prone to strong winds, Egypt is made up of many homes with little to no roofing leaving civilians exposed to the harsh elements.
Back, Paula, Murillo, Mariela
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

Testing of hydrogen sensor based on organic materials [PDF]

open access: yes, 2011
Práce je zaměřena na problematiku bezpečnostních vodíkových senzorů. Základní principy a teorie vodíkových senzorů je rozebrána v první části práce.
Petrová, Lenka
core  

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