Results 41 to 50 of about 48,690 (295)

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

open access: yesAdvanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad   +8 more
wiley   +1 more source

Valuable components of mineralized waters of the Chechen Republic: Extraction prospects [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология
The objective of the study was to assess the feasibility of using groundwater in the Chechen Republic for the extraction of valuable elements and their compounds based on an analysis of the obtained mineralized water compositions.
Mintsaev, Magomed Sh.   +6 more
doaj   +1 more source

Implications of Snowpack Reactive Bromine Production for Arctic Ice Core Bromine Preservation [PDF]

open access: yes, 2023
Snowpack emissions are recognized as an important source of gas-phase reactive bromine in the Arctic and are necessary to explain ozone depletion events in spring caused by the catalytic destruction of ozone by halogen radicals.
Shuting Zhai   +27 more
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Phase-vanishing halolactonization of neat substrates

open access: yesBeilstein Journal of Organic Chemistry, 2008
Phase-vanishing reactions are triphasic reactions which involve a reagent, a liquid perfluoroalkane as a phase screen and a substrate. The perfluoroalkane does not dissolve any of the reactants and is used to separate them.
Nicole Windmon, Veljko Dragojlovic
doaj   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Polybromides Attraction-Repulsion Regulation Promotes High-Performance Zinc-Bromine Static Battery. [PDF]

open access: yesAdv Sci (Weinh)
Br3− attraction‐repulsion regulation enhances the reversibility and reaction kinetics of Zn–Br static batteries. Coin cell shows a high average discharge voltage of 1.73 V and a fast charge/discharge rate up to 32 mA cm−2. Pouch cell with a high areal capacity of 8.3 mAh cm−2 achieves a real capacity of 365 mAh after 100 cycles.
Tang J   +6 more
europepmc   +2 more sources

High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry

open access: yesAdvanced Functional Materials, EarlyView.
We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler   +6 more
wiley   +1 more source

Asparagopsis taxiformis supplementation to mitigate enteric methane emissions in dairy cows—Effects on performance and metabolism

open access: yesJournal of Dairy Science
: Methane emissions from ruminant digestion contribute significantly to global anthropogenic greenhouse gas emissions. Members of the phylum Rhodophyta (red algae), particularly Asparagopsis sp., have shown promising results in reducing methane emissions
M. Angellotti   +4 more
doaj   +1 more source

Modelling future changes to the stratospheric source gas injection of biogenic bromocarbons

open access: yesGeophysical Research Letters, 2012
Simulations with a chemistry‐climate model (CCM) show a future increase in the stratospheric source gas injection (SGI) of biogenic very short‐lived substances (VSLS).
R. Hossaini   +11 more
doaj   +1 more source

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