Results 61 to 70 of about 2,183,981 (341)

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

MEGAN-LR: new algorithms allow accurate binning and easy interactive exploration of metagenomic long reads and contigs

open access: yesBiology Direct, 2018
Background There are numerous computational tools for taxonomic or functional analysis of microbiome samples, optimized to run on hundreds of millions of short, high quality sequencing reads.
Daniel H. Huson   +6 more
doaj   +1 more source

The significance of vegetation, fire and man in the stabilisation of sand dunes near the Warburton Ranges, Central Australia [PDF]

open access: yes, 1971
The vegetation cover of sand dunes and sandplain country in a part of Central Australia is aperiodically destroyed by fire, caused by lightning and Aboriginal activities.
Conacher, A.J.
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Pulse-by-pulse transient thermal deformation in crystal optics under high-repetition-rate FEL

open access: yesJournal of Synchrotron Radiation
Time-domain modeling of the thermal deformation of crystal optics can help define acceptable operational ranges across the pulse-energy repetition-rate phase space.
Lin Zhang   +4 more
doaj   +1 more source

Characterization of the complete chloroplast genome of Ammopiptanthus mongolicus (Leguminosae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Ammopiptanthus mongolicus is the only evergreen broadleaf shrub in the northwest desert of China, which can survive in long-term aridity and extremely cold environments. In this study, the complete chloroplast genome sequence of A.
Jing Hu   +3 more
doaj   +1 more source

Sand production: A smart control framework for risk mitigation

open access: yes, 2020
Due to the current global oil price, the sand production is considered undesirable product and the control of sand production is considered as one of the main concerns of production engineers.
Hisham Ben Mahmud   +2 more
semanticscholar   +1 more source

A simple morphodynamic model for sand banks and large-scale sand pits subject to asymetrical tides [PDF]

open access: yes, 2001
We extend existing knowledge on theoretical growth characteristics of tidal sand banks by including asymmetrical tides with an M0, M2 and M4-constituent, thus allowing for migration.
Hulscher, Suzanne J.M.H.   +4 more
core   +1 more source

Through Diamond Robust Surface Enhanced Raman Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle   +4 more
wiley   +1 more source

Minimization of thermal deformation in crystal optics for high-repetition-rate FEL

open access: yesJournal of Synchrotron Radiation
Minimizing thermal deformation in X-ray crystal optics is crucial for preserving coherence and wavefront in high-repetition-rate free-electron lasers (FELs).
Lin Zhang   +4 more
doaj   +1 more source

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