Results 81 to 90 of about 111,774 (266)

Pattern Analysis of Oxygen Saturation Variability in Healthy Individuals: Entropy of Pulse Oximetry Signals Carries Information about Mean Oxygen Saturation

open access: yesFrontiers in Physiology, 2017
Pulse oximetry is routinely used for monitoring patients' oxygen saturation levels with little regard to the variability of this physiological variable.
Amar S. Bhogal, Ali R. Mani
doaj   +1 more source

A copper pyramidal fractal antenna fabricated with green-laser powder bed fusion [PDF]

open access: hybrid, 2022
Kerry Johnson   +8 more
openalex   +1 more source

Indoor Organic Photovoltaics with Over 29% Efficiency and Great Stability Enabled by Giant Dimeric Acceptors with Hypsochromic Absorption and High Glass Transition Temperature

open access: yesAdvanced Science, EarlyView.
Through a systematical investigation of structure‐performance relationship from the small‐molecule acceptor to giant molecule acceptors (GDAs) and polymer acceptor, a fluorinated GDA is reported with hypsochromic absorption and high glass transition temperature. The resulting devices demonstrate a remarkable efficiency of 29.1% under indoor conditions,
Bosen Zou   +19 more
wiley   +1 more source

Thermal Modulation of Electrodeposition Stability in Sodium Metal Electrodes

open access: yesAdvanced Science, EarlyView.
Unstable electrodeposition in sodium metal electrodes during plating gives rise to dendritic morphologies. A comprehensive analysis of how various thermal profiles, including uniform and non‐uniform temperature distributions and thermodiffusion can affect electrodeposition instability has been performed.
Deep Chatterjee   +4 more
wiley   +1 more source

The Fractal Calculus for Fractal Materials

open access: yesFractal and Fractional, 2019
The major problem in the process of mixing fluids (for instance liquid-liquid mixers) is turbulence, which is the outcome of the function of the equipment (engine). Fractal mixing is an alternative method that has symmetry and is predictable.
Fakhri Khajvand Jafari   +2 more
doaj   +1 more source

A NUMERICAL STUDY OF COMPLEX DYNAMICS OF A CHEMOSTAT MODEL UNDER FRACTAL-FRACTIONAL DERIVATIVE

open access: hybrid, 2023
Zareen A. Khan   +3 more
openalex   +1 more source

Nanoscopic Mapping of the Extracellular Space in Amyloid Plaque‐rich Cortex

open access: yesAdvanced Science, EarlyView.
The extracellular space and diffusion around amyloid plaques are examined using shadow imaging and single‐particle tracking. Increased diffusivity is found near plaques, extracellular matrix alterations, and plaque core penetrability that varies with amyloid phenotype.
Juan Estaún‐Panzano   +11 more
wiley   +1 more source

Colloidal Phase Control in Plasmonic Metal Oxide Nanocrystals via Competitive Metal–Ligand Equilibria

open access: yesAngewandte Chemie, EarlyView.
We achieve programmable gelation temperature and network structure in terpyridine‐functionalized tin‐doped indium oxide nanocrystals. This strategy leverages the tuning of competitive metal–terpyridine and metal–halide equilibria via metal and halide identity, concentration, and temperature, enabling broad‐range infrared optical modulation.
Jiho Kang   +9 more
wiley   +2 more sources

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