Results 141 to 150 of about 201,531 (312)

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

Laser &Photonics Reviews, EarlyView.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang, Xiangfeng Chen, Lukas Van Iseghem, Iman Zand, Hasan Salmanian, Antonio Ribeiro, Wim Bogaerts   +6 more
wiley   +1 more source

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

Laser &Photonics Reviews, EarlyView.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber, Mithun Pal, Lukas Fürst, Emily Hruska, Christoph Gruber, Marcus Ossiander, Birgitta Bernhardt   +6 more
wiley   +1 more source

Interleaving Strategies [PDF]

, 2011
Heeren, B., Jeuring, J.T.
openaire   +3 more sources

Pallidal Evoked Resonant Neural Activity as a Candidate Biomarker for Deep Brain Stimulation in Dystonia

Movement Disorders, EarlyView.
Abstract Background Deep brain stimulation (DBS) targeted to the globus pallidus (GP) can effectively alleviate dystonia symptoms. However, identifying optimal therapeutic stimulation parameters is challenging due to the manual programming process and the paucity of acute effects of DBS on dystonia symptoms.
Kara A. Johnson, Patricia B. Coutinho, Filipe P. Sarmento, Elizabeth Vo, Joshua K. Wong, Justin D. Hilliard, Kelly D. Foote, Coralie de Hemptinne   +7 more
wiley   +1 more source

Modulation of Non‐Rhythmic Temporal Prediction by Subthalamic Nucleus Deep Brain Stimulation (STN‐DBS) in Parkinson's Disease

Movement Disorders, EarlyView.
Background Accurate temporal prediction, essential for adaptive motor behavior, relies on corticobasal ganglia circuits. In Parkinson's disease (PD), both motor and non‐motor functions are impaired. Deep brain stimulation (DBS) of the subthalamic nucleus (STN) effectively alleviates motor symptoms, but its effects on non‐motor domains, like temporal ...
Rebecca Burke, Marleen J. Schoenfeld, Christian K.E. Moll, Alessandro Gulberti, Monika Pötter‐Nerger, Andreas K. Engel   +5 more
wiley   +1 more source

Design of a 2.5 kW Four-Level Interleaved Flying Capacitor Multilevel Totem-Pole PFC Converter With AC-Side Passive Volume Optimization

IEEE Open Journal of Power Electronics
In this article, a high-efficiency and high-density 2.5 kW four-level interleaved flying capacitor multilevel (FCML) totem-pole bridgeless power-factor-correction (PFC) rectifier with 200 V GaN devices is analyzed, designed, and tested.
Naveed Ishraq, Ayan Mallik
doaj   +1 more source

Multi‐Solvent Suppression Ultrafast 2D COSY for High‐Throughput Wine Screening

Magnetic Resonance in Chemistry, EarlyView.
An interleaved ultrafast COSY with multi‐solvent suppression was developed for wine analysis to overcome limitations often associated with 1D 1H NMR (signal overlap) and conventional 2D NMR (long acquisition times) methods. Within an acquisition time of ~20 min, it revealed hidden metabolite peaks and cross peaks for improved annotation and ...
Pia S. Mayer, Jérémy Marchand, Marine P. M. Letertre, Jean‐Nicolas Dumez, Søren B. Engelsen, Patrick Giraudeau   +5 more
wiley   +1 more source

Technical Review of Magnetic Resonance Fingerprinting Applications in Cerebral Physiology

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Magnetic resonance fingerprinting (MRF) enables quantitative MRI by allowing the simultaneous mapping of multiple tissue properties through innovative acquisition and computational methods. This review focuses on the application of MRF techniques to cerebral physiology, emphasizing advancements in vascular imaging and the integration of ...
Chieh‐Te Lin, Hanzhang Lu, Audrey P. Fan   +2 more
wiley   +1 more source

Velocity Spectrum Imaging Using Velocity Encoding Preparation Pulses

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The goal of this article is to introduce a technique to measure the velocity distribution of water inside each voxel of an MR image. The method is based on the use of motion sensitizing gradients with changing first moment to encode velocity. As such, it is completely non‐invasive and requires no contrast injections.
Luis Hernandez‐Garcia, Alberto L. Vazquez, Douglas C. Noll   +2 more
wiley   +1 more source

Simultaneous Detection of GABA and Glycine Using MEGA‐PRESS With TE Optimization at 3T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To achieve the simultaneous acquisition of gamma‐aminobutyric acid (GABA) and glycine (Gly) using a MEGA‐PRESS sequence with an optimized TE at 3T. Methods MEGA‐PRESS simulations were performed at TEs 60‐88 ms to determine the optimal TE for Gly detection with minimal myo‐Inositol (mI) overlap and maximal GABA detection sensitivity ...
Justin R. Singer, Kimberly L. Chan
wiley   +1 more source