Results 81 to 90 of about 42,818 (302)

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

Thermal annealing of clusters and point defects in n-Si (Cz) irradiated by fast-pile neutrons [PDF]

open access: yesЯдерна фізика та енергетика, 2008
Thermal stability of clusters and point defects in n-Si grown by Czochralski technique (Cz) was studied after irradiation by thefluence ~ (2 ÷ 4) ⋅ 1013 no ⋅сm-2 of fast-pile neutrons.
A. P. Dolgolenko   +3 more
doaj  

Some complex intensification features of spheroidizing annealing of low carbon steel

open access: yesMetalurgija, 2022
The paper considers complex intensification features of spheroidizing annealing of low-carbon steels and possible technological realizations of intensive annealing modes in current lines.
G. Shvachych   +7 more
doaj  

Diverse Cation Exchange in Layered Titanate Nanostructures for Tailored Catalysis

open access: yesAdvanced Materials, EarlyView.
H+(H3O+)‐intercalated layered titanate enables stable intercalation of 42 single‐metal and multication combinations. Alkali‐metal intercalation tunes Rh charge density, yielding an efficient propylene hydroformylation catalyst. These results establish a generalizable intercalation platform for rational catalyst design and provide a library supporting ...
Hyoseok Kim   +15 more
wiley   +1 more source

Effect of Ingot Heating and Forged Products Heat Treatment Process on Banded-Structure of Φ540 mm Bar of Steel 18CrNiMo7-6

open access: yesTeshugang, 2015
Process flowsheet of test heavy gear steel 18CrNiMo7-6 (/% : 0.165C , 0.59Mn, 0.24Si, 0.006S, 0.008P, 1.56Ni, 1.71Cr, 0.28Mo, 0.034Al, 0.0129N) is 60 t UHP EAF-LF-VD-12.5 t ingot casting process.
刘金鑫   +5 more
doaj  

Multifunctional Oxadiazole‐Based Polycatenars: A Pathway to Polar Columnar Phases

open access: yesAdvanced Materials Interfaces, EarlyView.
Aromatic core fluorination directs oxadiazole‐based polycatenars into ferroelectric and antiferroelectric columnar phases with supergelation and photo‐responsiveness. ABSTRACT Polar columnar liquid crystals (LCs) offer a promising pathway to nanostructured architectures for next‐generation ferroelectric devices.
Yu Cao   +7 more
wiley   +1 more source

Aging, rejuvenation, and memory effects in short-range Ising spin glass: Cu$_{0.5}$Co$_{0.5}$Cl$_{2}$-FeCl$_{3}$ graphite bi-intercalation compound

open access: yes, 2004
Non-equilibrium aging dynamics in 3D Ising spin glass Cu$_{0.5}$Co$_{0.5}$Cl$_{2}$-FeCl$_{3}$ GBIC has been studied by zero-field cooled (ZFC) magnetization and low frequency AC magnetic susceptibility ($f = 0.05$ Hz), where $T_{g} = 3.92 \pm 0.11$ K ...
Almeida   +27 more
core   +3 more sources

Giant Young’S Modulus Variations in Ultrafine-Grained Copper Caused by Texture Changes at Post-Spd Heat Treatment / Gigantyczne Zmiany Modułu Younga W Ultra Drobnoziarnistej Miedzi Spowodowane Przez Zmiany Tekstury W Trakcie Obróbki Cieplnej Po SPD

open access: yesArchives of Metallurgy and Materials, 2015
The effect of annealing on dynamic Young’s modulus, E, of ultrafine-grained (UFG) copper obtained by combined severe plastic deformation (SPD) is investigated.
Pal-Val P.   +4 more
doaj   +1 more source

Flow‐Adaptive Gas Sensing Enabled Using a Uniform Au Nanosheet Sensor Array and a Neural Network Inference

open access: yesAdvanced Materials Technologies, EarlyView.
Integrated Au nanosheet sensor array enables simultaneous inference of gas concentration and flow rate via deep neural network analysis, without external flow control. ABSTRACT Gas sensor responses are considerably affected by gas flow rates, thereby inhibiting the accurate detection of target gas concentrations in variable‐flow applications such as ...
Taro Kato   +4 more
wiley   +1 more source

Effect of Isothermal Annealing on Sn Whisker Growth Behavior of Sn0.7Cu0.05Ni Solder Joint. [PDF]

open access: yesMaterials (Basel), 2023
Hashim AN   +6 more
europepmc   +1 more source

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