Results 131 to 140 of about 44,126 (290)

Photovoltaic Effect in a III‐IV‐V Compound Semiconductor

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
A large reduction of the GaAs band gap is obtained with incorporation of 6.5% Ge during epitaxy without introducing extended defects or composition inhomogeneity. Heterojunction solar cell devices were fabricated with 0.76‐V open circuit voltage and an internal quantum efficiency above 40% at energies below the bandgap of the GaAs emitter.
José M. Ripalda   +13 more
wiley   +1 more source

Viscoelastic Modeling of Stress Relaxation in Model High‐Performance Covalent Adaptable Networks

open access: yesJournal of Polymer Science, EarlyView.
Covalent adaptable networks, often referred to as vitrimers, contain a certain fraction of bonds that are able to exchange with other bonds. The ability of this bond exchange to relax stress or result in flow of the material depends on the concentration and specific concentration of these bonds in ways that can be quantified.
Broderick Lewis   +4 more
wiley   +1 more source

Adaptive Sliding‐Mode Control of a Perturbed Diffusion Process With Pointwise In‐Domain Actuation

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT A sliding mode–based adaptive control law is proposed for a class of diffusion processes featuring a spatially‐varying uncertain diffusivity and equipped with several point‐wise actuators located at the two boundaries of the spatial domain as well as in its interior.
Paul Mayr   +3 more
wiley   +1 more source

Reactive Preservation of Carbonate in Earth's Mantle Transition Zone

open access: yesGeophysical Monograph Series, Page 167-177., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jie Li   +3 more
wiley  

+1 more source

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

open access: yesSmall, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira   +9 more
wiley   +1 more source

Laser‐Induced‐Structural Transformation in Ti3CNTx MXene Monitored by Raman Spectroscopy with DFT Insight

open access: yesSmall, EarlyView.
A multi‐wavelength Raman study of microwave‐assisted hydrothermal Ti3CNTx MXene, supported by theoretical calculations, identifies laser‐power thresholds and evaluates its ambient‐condition stability. ABSTRACT MXenes are emerging 2D nanomaterials that have attracted growing attention for their highly tunable atomic structure, composition, and surface ...
Subrata Ghosh   +7 more
wiley   +1 more source

Oral Microalgae‐Laden Hydrogels Modulating the Intestinal Microbiota Metabolism for Acute Alcohol‐Induced Liver Injury Therapy

open access: yesSmall, EarlyView.
A food‐grade microalgae‐laden hydrogel (FMH) enables efficient in situ microalgae cultivation and serves as an oral therapeutic platform for acute alcohol‐induced liver injury. FMH improves alcohol tolerance, alleviates oxidative stress, inflammation, and lipid metabolic disorders, restores gut microbial homeostasis, and provides synergistic ...
Zhixin Hu   +10 more
wiley   +1 more source

Ultra‐Tough Hybrid Supramolecular Gelatin Hydrogels

open access: yesSmall, EarlyView.
Tannic acid‐mediated coacervation compacts gelatin into a dense supramolecular network while generating an acidic microenvironment that activates pre‐embedded bis‐oxazoline crosslinkers. The resulting hybrid hydrogel combines covalent stabilization with reversible energy dissipation, producing high strength, extreme extensibility, substantial toughness,
Patrick Shakari   +6 more
wiley   +1 more source

Vat Polymerization 3D Printing of Hydrogels With Tunable Porosity

open access: yesSmall Methods, EarlyView.
Nanodroplet emulsion templating enables DLP printing of porous hydrogels with pore sizes tunable across two orders of magnitude, from 46.15 to 0.66 µm. The printed interconnected networks retain high fidelity while improving mechanical robustness and cellular responses, providing a versatile platform for porous hydrogel biofabrication.
Liwei Liu   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy