Results 131 to 140 of about 6,357 (228)

Signal averaging in cryogenic fast-field-cycling NMR experiments. [PDF]

Sci Rep
Jurkutat M, Safiullin K, Singh P, Meier B.   +3 more
europepmc   +1 more source

FENCE: Flexible Electric Noise Reduction Endo‐Shield for the Suppression of Electromagnetic Interference in Low‐Field MRI

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
Electromagnetic interference (EMI) is a significant challenge for low‐field MRI. Traditional EMI mitigation approaches either limit portability or demand advanced hardware. We present FENCE (Flexible Electromagnetic Noise reduCtion Endo‐shield), a novel approach for EMI mitigation using flexible PCBs placed inside the RF coil.
Julia Pfitzer, Martin Uecker, Hermann Scharfetter   +2 more
wiley   +1 more source

Reproducible testing for embedded BCIs: a demultiplexing PCB and acquisition system for EEG signal emulation. [PDF]

HardwareX
Enériz D, Antolín D, Medrano N, Calvo B.   +3 more
europepmc   +1 more source

Reducing Noise Induced by Cardiac Pulsatility in Brain Maps of R2* and Magnetic Susceptibility Using Tailored k‐space Sampling

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
With linear k‐space sampling trajectories, cardiac pulsation leads to MRI signal instabilities that increase the variability (standard deviation, SD) of R2* and QSM maps across repetitions. Here, we propose alternative trajectories that aim to mitigate the impact of cardiac‐induced noise in brain maps of R2* and QSM.
Quentin Raynaud, Thomas Dardano, Rita Oliveira, Giulia Di Domenicantonio, Tobias Kober, Christopher W. Roy, Ruud B. van Heeswijk, Antoine Lutti   +7 more
wiley   +1 more source

Design and implementation of a phasor measurement unit using a new measurement technique. [PDF]

Sci Rep
Mohamed SA, Mageed HMA, Arafa OM, Merzban MH, Eteiba MB, Haiba AS.   +5 more
europepmc   +1 more source

Development of a Coaxial Over‐the‐Scope Bimanual Robot Enabling Lesion‐Aligned Manipulation for ESD

The International Journal of Medical Robotics and Computer Assisted Surgery, Volume 22, Issue 3, June 2026.
ABSTRACT Background Endoscopic Submucosal Dissection (ESD) requires high expertise as conventional endoscopes cannot provide simultaneous traction and dissection, resulting in unstable visualisation and inconsistent cutting depth. Methods A coaxial over‐the‐scope bimanual robotic system was developed to enable lesion‐aligned traction and dissection ...
Chanwoo Kim, Sang Hyun Kim, JaeYoun Kim, Woocheol Shin, SeongHyeon Won, Junho Hong, Hyuk Soon Choi, Seongil Kwon, Daehie Hong   +8 more
wiley   +1 more source

Comparative Assessment of PPG-Derived HRV Using MAX30102 Sensor and Analog Circuitry with ADS1115 ADC. [PDF]

Sensors (Basel)
Miranda-Vega JE, Ayala-Figueroa RI, Villarreal-González Y, Escarcega-Zepeda PA.   +3 more
europepmc   +1 more source

Long‐Term Trends in the Calibration of the Cluster Fluxgate Magnetometer Instruments

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract The calibration parameters of the Cluster mission's fluxgate magnetometer instruments have been determined and updated on a per‐orbit basis throughout the 24 years of the mission. Since there is no absolute field reference for vector measurements in‐flight, various spacecraft‐to‐spacecraft and instrument‐to‐instrument comparisons have been ...
L.‐N. Alconcel, P. Brown, T. Oddy, C. M. Carr   +3 more
wiley   +1 more source

An energy-efficient Flash-SAR ADC with two-step flash structure in a 0.18 μm CMOS process. [PDF]

Sci Rep
Xue S.
europepmc   +1 more source

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source