Results 171 to 180 of about 445,081 (268)

Simultaneous 3‐D Adiabatic T1ρ, T2*, and Quantitative Susceptibility Mapping for Characterization of Myocardial Infarction in Ex Vivo Mouse

open access: yesNMR in Biomedicine, Volume 39, Issue 10, October 2026.
This study combines segmented T1ρ preparation into a 3‐D gradient‐echo sequence for simultaneous quantitative susceptibility, T2*, and T1ρ mapping of infarcted mouse hearts ex vivo. The method enabled assessment of T1ρ and T2* relaxation time maps and magnetic susceptibility, with ischemic regions clearly identified by all contrasts and consistent with
Iida Räty   +6 more
wiley   +1 more source

An approximative solution of the quadrature of a circle [PDF]

open access: yesČasopis pro pěstování matematiky a fysiky, 1897
openaire   +1 more source

A Machine Learning Approach That Measures Extracellular pH Within an In Vivo Tumor Model Using acidoCEST MRI

open access: yesNMR in Biomedicine, Volume 39, Issue 10, October 2026.
Machine learning models, particularly RFR (random forest regression), provide accurate and computationally efficient tumor pHe estimation from acidoCEST MRI without requiring auxiliary parametric maps. RFR achieved comparable performance to traditional Bloch fitting (RMSE: 0.020 vs.
Alia Khaled   +6 more
wiley   +1 more source

Hidden Vibrational Bistability Revealed by Intrinsic Fluctuations of a Carbon Nanotube. [PDF]

open access: yesNano Lett
Belardinelli P   +4 more
europepmc   +1 more source

Sensitivity of viscoelastic characterization in multi-harmonic atomic force microscopy.

open access: yesSoft Matter, 2022
Chandrashekar A   +6 more
europepmc   +1 more source

Optimal Control‐Based RF Pulses Versus Classical Motion‐Encoding Strategies for In Vivo Hepatic MR Elastography Across Multiple Excitation Frequencies in Mice: Reproducibility Assessment

open access: yesNMR in Biomedicine, Volume 39, Issue 10, October 2026.
Optimal control (OC)–based motion encoding doubles SNR in vivo in murine hepatic MRE by eliminating motion‐encoding gradients and enabling shorter echo times. Quantitative liver stiffness measurements remain consistent with conventional MEG‐MRE across multiple excitation frequencies, supporting longitudinal studies and clinical translation ...
Tiffany Bakir‐Ageron   +5 more
wiley   +1 more source

Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi   +3 more
wiley   +1 more source

From Intermolecular Poses to Thermodynamics Using Subdivided Spheres. [PDF]

open access: yesJ Phys Chem B
Vinterbladh I   +5 more
europepmc   +1 more source

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