Results 61 to 70 of about 8,036 (229)

Orientation Engineering in Flexible Ag2Se‐Based Thermoelectric Films

open access: yesAdvanced Science, EarlyView.
We comprehensively review recent advances in highly oriented Ag2Se films. We propose two practical metrics to quantitatively benchmark their application potential and establish a unified framework that elucidates the orientation‐dependent charge transport mechanism in Ag2Se‐based films.
Hao Wu   +3 more
wiley   +1 more source

Comparing serial X-ray crystallography and microcrystal electron diffraction (MicroED) as methods for routine structure determination from small macromolecular crystals

open access: yesIUCrJ, 2020
Innovative new crystallographic methods are facilitating structural studies from ever smaller crystals of biological macromolecules. In particular, serial X-ray crystallography and microcrystal electron diffraction (MicroED) have emerged as useful ...
Alexander M. Wolff   +37 more
doaj   +1 more source

Electropulse‐Driven Dislocation Evolution in Sub‐10 nm Metallic Nanocrystals

open access: yesAdvanced Science, EarlyView.
Atomic‐scale TEM imaging reveals how nanosecond electropulses drive dislocation evolution in sub‐10 nm metallic nanocrystals. Enhanced electron scattering at structural heterogeneities nucleates dislocation loops and dipoles, which then repeatedly interact and annihilate, causing dislocation density fluctuations or structural disordering.
Youran Hong   +6 more
wiley   +1 more source

Spatially Confined Crystallization of Patterned MAPbBr3−xClx Microcrystals

open access: yesCrystals
Patterned lead-halide perovskite microstructures are promising for integrated optoelectronics, photonics, and polarization-sensitive devices, but the practical growth behavior of compositionally tunable microcrystals under simple static confinement ...
Jinting Wang   +5 more
doaj   +1 more source

Dose-resolved serial synchrotron and XFEL structures of radiation-sensitive metalloproteins

open access: yesIUCrJ, 2019
An approach is demonstrated to obtain, in a sample- and time-efficient manner, multiple dose-resolved crystal structures from room-temperature protein microcrystals using identical fixed-target supports at both synchrotrons and X-ray free-electron lasers
Ali Ebrahim   +14 more
doaj   +1 more source

Surface Neuronal‐Like Structuring of High‐Strength CFRP for Enhanced Electromagnetic Interference Shielding

open access: yesAdvanced Science, EarlyView.
This study elucidates the microstructural evolution at the material interface of Ni‐plated plain‐weave carbon fiber fabric following vacuum heat treatment at 500°C–900°C under different current densities, as well as the mechanism underlying the synergistic enhancement of electromagnetic shielding and ductility.
Wei Cheng   +7 more
wiley   +1 more source

Morphological characteristics of framboidal pyrite and their paleo-environmental significance in Longmaxi Formation of Weirong area, southern Sichuan Basin

open access: yesShiyou shiyan dizhi
The morphological characteristics of framboidal pyrite have important indicative significance for the shale sedimentary environments and shale gas enrichment.
Guowei ZHAO   +5 more
doaj   +1 more source

NMR of magnetically oriented microcrystals

open access: yesSolid State Nuclear Magnetic Resonance
We review solid-state NMR of magnetically oriented microcrystals. Three-dimensional alignment makes experiments virtually equivalent to single-crystal NMR possible even if the sample of interest is polycrystalline. This leads to characterization of electronic structure through determination of chemical shift and electric-field gradient tensors.
Ryosuke Kusumi   +2 more
openaire   +2 more sources

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

open access: yesCarbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song   +8 more
wiley   +1 more source

Engineering Long‐Releasing Hollow‐like or Condensed Progesterone Hormone Microcrystals with Controlled Polymorphism

open access: yesSmall Science
Progesterone is an endogenous steroid hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. Progesterone crystallization techniques have previously reported. Among these techniques, solvent crystallization and
Merna Shaheen‐Mualim   +4 more
doaj   +1 more source

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