Results 141 to 150 of about 6,790 (254)

Autonomy for MRI Field Cameras: Synchronization, Self‐Calibration, and Sequence Detection

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 485-498, July 2026.
ABSTRACT Purpose This work aims to provide a workflow for operating NMR field probes in MR scanners independently of pulse programming, scanner TTL trigger pulses and dedicated calibration sequences. Methods An independent timing system and limited prior knowledge about relative probe positions enable synchronous field measurement, probe position ...
Oskar Björkqvist, Klaas P. Pruessmann
wiley   +1 more source

A Trinuclear Manganese(II) Complex Bridged by a Triaminoguanidine‐Based Schiff Base Ligand: Structure and Magnetic Properties

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 9, 3 June 2026.
A triaminoguanidine‐based Schiff base ligand enables the directed assembly of a trinuclear manganese(II) complex with an almost equilateral triangular topology. Weak antiferromagnetic exchange interactions in combination with axial zero‐field splitting govern the magnetic behavior of the Mn3 core. A triaminoguanidine‐based Schiff base ligand provides a
Daniel Plaul   +2 more
wiley   +1 more source

Direct Gravity‐Induced Modulation of Cardiac Conduction Pathways Evidenced Through Propagation Features in Electrophysiological Mapping

open access: yesAdvanced Materials Technologies, Volume 11, Issue 12, 18 June 2026.
A high‐density wearable body‐surface potential mapping array reveals how gravity reshapes cardiac conduction in real time. By resolving spatiotemporal delay patterns invisible to conventional ECG, the platform uncovers posture‐dependent electrophysiological adaptations across the thorax.
Ruben Ruiz‐Mateos Serrano   +4 more
wiley   +1 more source

Habitat complexity and prey composition shape an apex predator's habitat use across contrasting landscapes

open access: yesEcography, Volume 2026, Issue 6, June 2026.
The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi   +4 more
wiley   +1 more source

Analysis and numerical simulation of eigenmode characteristics for semiconductor lasers with an equilateral triangle micro-resonator

open access: yes, 2001
The eigenmodes confined in the equilateral triangle resonator (ETR) are analyzed by deriving the eigenvalues and the mode field distributions and by the finite difference time domain (FDTD) technique.
Huang YZ   +3 more
core  

Application of Sandpaper Spray Mass Spectrometry (SPS‐MS) for the Recognition of Sweeteners in Candies and Gums

open access: yesJournal of Mass Spectrometry, Volume 61, Issue 6, June 2026.
ABSTRACT The detection of sweeteners in complex food matrices remains analytically challenging. The present study evaluates sandpaper spray mass spectrometry (SPS‐MS) as a rapid, direct, no‐sample‐preparation screening approach for sugar‐free candies and chewing gums.
Sarah Fernandes Coelho Viana   +2 more
wiley   +1 more source

Room-temperature continuous-wave electrically injected InP-GaInAsP equilateral-triangle-resonator lasers

open access: yes, 2007
Equilateral-triangle-resonator (ETR) microlasers with an output waveguide connected to one of the vertices of the ETR are suitable to be a light source for photonic integrated circuits.
Hu YH (Hu Yong-Hong)   +7 more
core  

Nano‐Raman Spectroscopy of Tellurium Nanowires

open access: yesJournal of Raman Spectroscopy, Volume 57, Issue 6, Page 1034-1039, June 2026.
Nano‐Raman evidences a diameter dependence of the peak position, among different tellurium nanowires and along the single species. ABSTRACT Tellurium‐based nanowires are interesting structures for applications in low‐dimensional electronics. This work investigates the vibrational dynamics of trigonal tellurium (t‐Te) nanowires through tip‐enhanced ...
Diego Sier   +7 more
wiley   +1 more source

Potential light source for photonic integrated circuits based on the equilateral triangle resonator

open access: yes, 2001
The semiconductor microlasers based on the equilateral triangle resonator (ETR) can be fabricated from the edge-emitting laser wafer by dry-etching technique, and the directional emission can be obtained by connecting an output waveguide to one of the ...
Huang YZ   +3 more
core  

Ultralow‐Backscattering Induced Mode Splitting in Chipscale Valley Photonic Topological Cavities

open access: yesLaser &Photonics Reviews, Volume 20, Issue 12, 18 June 2026.
The proposed in‐situ metrology based on mode splitting quantifies the ultralow backscattering of topological valley edge states at a single sharp corner, demonstrating near‐lossless topological transport (0.09 dB/corner) on a silicon chip. This work provides insight into the robustness of the photonic valley system and shows the great potential of ...
Kaiji Chen   +5 more
wiley   +1 more source

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