Results 171 to 180 of about 185,372 (245)

Toward Optimized Intravoxel Incoherent Motion (IVIM) and Compartmental T2 Mapping in Abdominal Organs

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To quantitatively assess the bias in the intravoxel incoherent motions (IVIM)–derived pseudo‐diffusion volume fraction (f) caused by the differences in relaxation times between the tissue and fluid compartments, and to develop a two‐dimensional (b‐value‐TE) fitting approach for simultaneous T2 and IVIM parameter estimation along with ...
Julia Stabinska, Thomas A. Thiel, Hans‐Jörg Wittsack, Alexandra Ljimani, Helge J. Zöllner   +4 more
wiley   +1 more source

A hyperfine-transition-referenced vector spectrum analyzer for visible-light integrated photonics. [PDF]

Nat Commun
Shi B, Zheng MY, Hu Y, Zhao Y, Shang Z, Zhong Z, Chen Z, Luo YH, Long J, Sun W, Ma W, Xie XP, Gao L, Shen C, Wang A, Liang W, Zhang Q, Liu J.   +17 more
europepmc   +1 more source

Postexercise Lactate Clearance, T2 Relaxation, and J‐Modulation in Human Skeletal Muscle Measured With Double‐Quantum Filtered 1H MRS at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose 1H MRS lactate measurements are potentially valuable for studying energy metabolism in working skeletal muscle, but some technical obstacles need to be overcome. Spectral filtering to isolate the lactate signal from overlapping lipid resonances shows promise.
Kostiantyn Repnin, Vasco Rafael Rocha dos Santos, Veronika Cap, Roberta Frass‐Kriegl, Siegfried Trattnig, Graham J. Kemp, Martin Meyerspeer   +6 more
wiley   +1 more source

Broadband impedance matching for lossy magnetic metamaterials in conductive media. [PDF]

Sci Rep
Jenkins C, Kiourti A.
europepmc   +1 more source

Ultrafast lasers for attosecond science. [PDF]

Light Sci Appl
Hu X, Mak KF, Zhang J, Wei Z, Krausz F.
europepmc   +1 more source

Sodium Induced Beneficial Effects in Wide Bandgap Cu(In,Ga)S2 Solar Cell With 15.7% Efficiency

Progress in Photovoltaics: Research and Applications, EarlyView.
Wide bandgap Cu(In,Ga)S2 absorbers grown on soda‐lime glass (SLG) were optimized by introducing additional sodium (Na) via in situ NaF co‐evaporation. Optimal Na incorporation enhanced crystallinity, minimized Ga fluctuations across the depth, suppressed bulk defects, and reduced non‐radiative losses.
Arivazhagan Valluvar Oli, Kulwinder Kaur, Michele Melchiorre, Aubin Jean‐Claude Mireille Prot, Sevan Gharabeiki, Yucheng Hu, Gunnar Kusch, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Rachel A. Oliver, Susanne Siebentritt   +12 more
wiley   +1 more source

Open-Source Simulator of Imaging Near Metal at Arbitrary Magnetic Field Strengths. [PDF]

Magn Reson Med
Keskin K, Sanson AR, Hargreaves BA, Nayak KS.   +3 more
europepmc   +1 more source

Bio‐Based Multilayer Composites Based on Blended Electrospun Fibers and Luffa Cylindrica for Enhanced Low‐Frequency Noise Absorption

Journal of Polymer Science, EarlyView.
Bio‐based multilayer composites consisting of Luffa Cylindrica and electrospun microfibers exhibit enhanced sound absorption, shifting peak performance towards lower frequencies. The multilayer configuration improves acoustic wave dissipation, providing a tunable and sustainable solution for urban and traffic‐related noise mitigation.
Paraskevas Kyriacou, Viktoria Theodorou, Michal Matysík, Iveta Plšková, Ivo Kusák, Theodora Krasia‐Christoforou   +5 more
wiley   +1 more source

Precision in Peak Parameter Estimation for the Pseudo-Voigt Profile: A Novel Optimization Approach for High-Precision Analysis via Mixing Parameter Control. [PDF]

ACS Meas Sci Au
Hagiwara Y, Kuwatani T.
europepmc   +1 more source

Fully Quantum Perturbative Description of Correlated Stokes–Anti‐Stokes Scattering

physica status solidi (b), EarlyView.
The generation of Stokes‐anti‐Stokes (SaS) photon pairs with quantum correlations, like entanglement, has been developing recently, but a proper theoretical ground was missing. A fully quantum perturbative theory is provided to describe the four‐wave mixing contribution to the correlated SaS scattering, in which both matter and electromagnetic field ...
Raul Corrêa, Marcelo F. Santos, Carlos H. Monken, Ado Jorio   +3 more
wiley   +1 more source