Results 41 to 50 of about 25,017 (253)

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

ANDRÉ–OORT CONJECTURE AND NONVANISHING OF CENTRAL $L$ -VALUES OVER HILBERT CLASS FIELDS

open access: yesForum of Mathematics, Sigma, 2016
Let $F/\mathbf{Q}$ be a totally real field and $K/F$ a ...
ASHAY A. BURUNGALE, HARUZO HIDA
doaj   +1 more source

College Algebra Slide Decks

open access: yes, 2022
This collection of slide decks is designed to be used in concert with the following Open Eduational Resources: - OpenStax College Algebra 2e Open Texbook - Department of Mathematics Video Playlist - Homework questions from myOpenMath Concepts include are:
Abukhodair, Bader, Zeng, Michelle
core   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

iTransKAN: A deep chemometric model for enhanced heavy metal quantification via multi-scan cyclic voltammetry

open access: yesChemical Engineering Journal Advances
Voltammetric analysis coupled with advanced chemometrics provides a powerful framework for heavy metal quantification. However, translating complex, non-linear electrical current responses into precise concentrations remains challenging.
Fadlilatul Taufany   +5 more
doaj   +1 more source

Quantitative bounds for the $U^4$-inverse theorem over low characteristic finite fields

open access: yesDiscrete Analysis, 2022
Quantitative bounds for the $U^4$-inverse theorem over low characteristic finite fields, Discrete Analysis 2022:14, 17 pp. Let $G$ be a finite Abelian group and let $f$ be a complex-valued function defined on $G$.
Jonathan Tidor
doaj   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

On WRF hybrid-dynamic regression approach in heavy rainfall forecasting over the Northern of Thailand

open access: yesFrontiers in Environmental Science
Rainfall forecasting in Northern Thailand presents considerable challenges due to the complex topography of the region and its highly variable climatic conditions, particularly during periods of heavy rainfall in August. This is compounded by limitations
Nattawadee Sirisombat   +3 more
doaj   +1 more source

Optimization of FDM process parameters and dimensional error of double-arrowhead auxetic honeycomb structures [PDF]

open access: yesAIP Advances
Material extrusion additive manufacturing provides a flexible and low-cost route for fabricating complex auxetic structures; however, the dimensional accuracy of thin-walled composite honeycombs remains difficult to control because of thermal ...
Yu Chen   +4 more
doaj   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald   +7 more
wiley   +1 more source

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