Results 181 to 190 of about 47,975 (305)

Bioinspired Zinc Macrocycles Confined in UiO‐67: A Heterogeneous Synzyme for Sustainable CO2 Valorization

open access: yesChemSusChem, Volume 19, Issue 17, 14 September 2026.
By mimicking nature’s use of weak supramolecular interactions, zinc macrocycles are assembled within defective UiO‐67 to create cooperative synzymes for CO2 valorization. Confined amines, hydrogen‐bonding networks and accessible iodides work in concert to activate CO2 and epoxides at ambient pressure, delivering additive‐free catalysis that outperforms
J. E. Chiva   +7 more
wiley   +1 more source

Task‐based evaluation of axial and multiplanar reconstructions in computed tomography: A volumetric analysis of spatial resolution, noise, and detectability

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Multiplanar reconstructions (MPRs) are an essential clinical tool for interpreting complex 3D anatomy, offering improved diagnostic accuracy in computed tomography (CT). However, image quality can be impaired by the inappropriate use of reconstruction parameters for primary axial slices.
Pascal Monnin   +3 more
wiley   +1 more source

Phantom evaluation of small‐pixel effect in ultra‐high‐resolution photon‐counting CT: Noise texture and high‐contrast spatial resolution

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Ultra‐high‐resolution (UHR) photon‐counting CT (PCCT) with small‐pixel detectors improves resolution and noise, but its dependence on diverse imaging conditions remains insufficiently characterized. Purpose To systematically evaluate the small‐pixel effect in UHR PCCT by assessing noise properties and high‐contrast spatial ...
Kyu‐Ho Song   +6 more
wiley   +1 more source

Response of the peeled off Gafchromic EBT2 film to 4 MeV alpha particles using transmission and reflection modes. [PDF]

open access: yesSci Rep
El-Naggar HI   +8 more
europepmc   +1 more source

BOULDER DISTRICT ESF

open access: yes, 2012
Located in: Boulder office files.
openaire   +1 more source

Task‐based image quality and dosimetric validation of HyperSight CBCT for adaptive radiotherapy

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Cone‐beam computed tomography (CBCT) is increasingly used in adaptive radiotherapy (ART), yet the dosimetric accuracy and image quality of advanced CBCT imaging platforms—such as Halcyon HyperSight 4.0 (HH), which combines an upgraded detector panel with advanced iterative reconstruction, scatter‐correction, and metal‐artifact ...
Byungmoon Park   +2 more
wiley   +1 more source

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