Results 101 to 110 of about 763,123 (301)

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

Co-GISAXS as a New Technique to Investigate Surface Growth Dynamics

open access: yes, 2015
Detailed quantitative measurement of surface dynamics during thin film growth is a major experimental challenge. Here X-ray Photon Correlation Spectroscopy with coherent hard X-rays is used in a Grazing-Incidence Small-Angle X-ray Scattering (i.e.
Headrick, Randall L.   +7 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Reference for radiographic film interpreters [PDF]

open access: yes, 1970
Reference of X-ray film images provides examples of weld defects, film quality, stainless steel welded tubing, and acceptable weld conditions. A summary sheet details the discrepancies shown on the film strip.
Austin, D. L.
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Oxidation behavior of molten magnesium alloy AZ91D in different atmospheres containing sulfur and fluorine

open access: yesMaterials Research Express
In the magnesium alloy melting process, the implementation of anti-burning technology is imperative. This study investigates the oxidation resistance of AZ91D magnesium alloy melting at 730 °C in an open environment under a mixed gas atmosphere, where ...
Huizhu Yang   +3 more
doaj   +1 more source

Nickel mediated few-layer graphene growth on glass substrates by pulsed laser deposition

open access: yesResults in Physics, 2019
This article shows the efficacy of transition metal (Ni) as a top layer on glass in the formation of graphene domain. Graphene films were grown on glass substrates from highly ordered pyrolytic graphite by pulsed laser deposition (PLD), with the help of ...
Pramod Kumar   +2 more
doaj   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

open access: yesAdvanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni   +10 more
wiley   +1 more source

Sinusitis and chronic cough in children

open access: yesJournal of Asthma and Allergy, 2012
Nevin W Wilson, Mary Beth Hogan, Charles Bruce Harper, Kathy Peele, Sonia Budhecha, Vincent Loffredo, Vanessa WongUniversity of Nevada School of Medicine, Department of Pediatrics, Section of Allergy, Immunology and Pulmonology, Reno, NV, USABackground ...
Wilson NW   +6 more
doaj  

Profile Characteristics of X-ray Film Used in Radiology Hospital/Health Center/Clinic in Semarang [PDF]

open access: yes, 2014
The purpose of this study was to determine the characteristics of the X-ray film profile and X-ray films that have the optimal characteristics. This study was conducted on four X-ray films with different brands that are used in 13 radiology department ...
Dahjono, J. (Johanes)   +2 more
core  

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