Emerging evidence for a mechanistic link between low-frequency oscillation of ventricular repolarization measured from the electrocardiogram T-wave vector and arrhythmia. [PDF]
Europace, 2021 Taggart P +10 more
europepmc +1 more source
Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor
Advanced Functional Materials, EarlyView.Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben +6 more
wiley +1 more source
Vibration Analysis and Optimal Control of Hydraulic Turbine Based on Sliding Mode Control Strategy
IEEE AccessThe turbine generator unit plays a very important role in maintaining the stability of the power system and improving the quality of power. However, hydropower units will bring the risk of low-frequency oscillation or ultra-low frequency oscillation to ...
Xiaoping Huang +2 more
doaj +1 more source
Separating neuronal activity and systemic low-frequency oscillation related BOLD responses at nodes of the default mode network during resting-state fMRI with multiband excitation echo-planar imaging. [PDF]
Front Neurosci, 2022 Tachibana A +4 more
europepmc +1 more source
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Atmosphere, 2019 Using National Centers for Atmospheric Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data and observational data, the low-frequency oscillation characteristics of precipitation in eastern China during the decaying summer of ...
Cong Cai +3 more
doaj +1 more source
High Frequency and Low Frequency Noise in Microwave Oscillators
, 2004 This paper is a summary of our research in the field of noise in oscillators. An original approach has been developed to check the validity of the theoretical models and also, to investigate some techniques of noise reduction. It is based on open loop (or residual) phase noise measurements of microwave transistors.
openaire +2 more sources
Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley +1 more source
Low frequency forced oscillation technique in infants
, 1999 Low frequency forced oscillation technique in ...
J Wildhaber (13368876) +4 more
core
, 2011 With the rapid development of interconnected power grid, the phenomenon of power system low-frequency oscillation appears unavoidably. Then, the appearance of wide-area measurement system provided a supporting technology for better scout low-frequency ...
Qian Huang, Dong Chen, Yang Liu
core +1 more source