Results 261 to 270 of about 3,197,005 (354)

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer, Alexander Bratch, Shahar Goren, Edna Furman‐Haran, Noam Harel, Essa Yacoub, Rita Schmidt   +6 more
wiley   +1 more source

Does chemistry need more physics? [PDF]

Pure Appl Chem
Saue T.
europepmc   +1 more source

Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan, Ilaria Palomba, Alberto Pasetto, Alberto Doria   +3 more
wiley   +1 more source

A dynamically tunable terahertz human serum albumin biosensor based on Dirac semimetal nanozyme. [PDF]

Front Bioeng Biotechnol
Chen L, Yao Q, Chen J, Peng Y, Xu J, Fu Q.   +5 more
europepmc   +1 more source

Gap Symmetry, Electronic Structure and Interplay Between Superconductivity and Spin Density Wave in Sr1−xKxFe2As2 Superconductor

Nano Select, EarlyView.
In moderately hole‐doped Sr1−xKxFe2As2${\rm Sr}_{1-x}{\rm K}_x{\rm Fe}_2{\rm As}_2$ system the pairing state is s+−${\rm s}^{+-}$ wave pairing state mediated by spin fluctuations. As the SDW order parameter increases, TC${\rm T}_C$ decreases and TM${\rm T}_M$ increases. As temperature increases, the SDW order parameter decreases and vanishes at TM${\rm
Gedefaw Mebratie, Tamiru Negussie, Geberegziabher Kahsay   +2 more
wiley   +1 more source

Disentangling contributions to longitudinal magnetoconductivity for Kramers-Weyl nodes. [PDF]

Sci Rep
Mandal I.
europepmc   +1 more source

The Weak Core, Partition‐Based Universal Stability, and Their Risk Associations Through A Partial Order

Naval Research Logistics (NRL), EarlyView.
ABSTRACT We are concerned with the stability of a transferable‐utility cooperative (TU) game. First, the concept of core can be weakened so that the blocking of changes is limited to only those with multilateral backings. This principle of consensual blocking, as well as the traditional core‐defining one of unilateral blocking and one straddling in ...
Jian Yang
wiley   +1 more source

Discovery of the exact 3D one-way wave equation. [PDF]

Nat Commun
Tsakmakidis KL, Stefański TP.
europepmc   +1 more source

Progress Toward Efficient Wide‐Gap Cu(In,Ga)(S,Se)2 Thin‐Film Solar Cells

Progress in Photovoltaics: Research and Applications, EarlyView.
Wide‐gap Cu (In,Ga)(S,Se)2 thin‐film solar cells are studied in view of their performance, limitations, and opportunities for further optimization. Different sources of open circuit voltage limitations were discussed and weighted. Interface recombination appears the main recombination channel, which however can be influenced heavy alkali treatment ...
Setareh Zahedi‐Azad, Roland Scheer, Dimitrios Hariskos, Stefan Paetel, Wolfram Hempel, Wolfram Witte, Hao Luo, Oana Cojocaru‐Mirédin, Mary Blankenship, Dirk Hauschild, Victor van Maris, Lothar Weinhardt, Clemens Heske, Thomas Unold, José A. Márquez, Jasmin Seeger, Florian Wilhelmi, Michael Hetterich, Thomas Niesen, Patrick Eraerds, Thomas Dalibor, Xiaowei Jin, Reinhard Schneider, Dagmar Gerthsen, Di Wang, Christian Kübel   +25 more
wiley   +1 more source