Results 51 to 60 of about 173,727,387 (260)

Triboelectric nanogenerator to harness energy from low-frequency and low-amplitude vibrating sources [PDF]

Dielectric Elastomer Generator (DEG) stands out as a promising electromechanical device to harness energy from non-conventional sources owing to its ability to convert mechanical energy into electrical power. DEG with no rotating part demonstrates a high
Om Prakash Prabhakar, Dhananjay Sahu, Prabhakar, Om Prakash, Sahu, Raj Kumar, Sahu, Dhananjay, RAJ KUMAR SAHU   +5 more
core   +3 more sources

Stability of low-frequency fluctuation amplitudes in prolonged resting-state fMRI

NeuroImage, 2014
The (fractional) amplitudes of low-frequency fluctuations (f)ALFF are popular measures for the magnitude of low-frequency oscillations in resting-state fMRI (R-fMRI) data. Both measures can be directly derived from the spectral power of R-fMRI time courses.
Martin Küblböck, Michael Woletz, Anna Höflich, Ronald Sladky, Georg S. Kranz, André Hoffmann, Rupert Lanzenberger, Christian Windischberger   +7 more
openaire   +3 more sources

Scale-free amplitude modulation of low-frequency fluctuations in episodic migraine

Pain, 2019
Abstract Arrhythmic fluctuations in neural activity occur at many levels of the nervous system. Such activity does not have a characteristic temporal periodicity but can exhibit statistical similarities, most commonly power-law scaling behavior, which is indicative of scale-free dynamics.
Duncan J, Hodkinson, Danielle, Lee, Lino, Becerra, David, Borsook   +3 more
openaire   +3 more sources

Machine Learning Analysis Reveals Abnormal Static and Dynamic Low-Frequency Oscillations Indicative of Long-Term Menstrual Pain in Primary Dysmenorrhea Patients

Journal of Pain Research, 2021
Shao-Gao Gui,1,2,* Ri-Bo Chen,2,* Yu-Lin Zhong,1 Xin Huang1 1Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang, 330006, Jiangxi, People’s Republic of China; 2Department of Radiology ...
Gui SG, Chen RB, Zhong YL, Huang X
doaj  

Extremely low frequency based communication link [PDF]

, 2009
The paper discusses the literature review and the possibility of using the ground itself as transmission medium for various users’ transceivers and an administrator transceiver using Multi-Carrier-Direct Sequence-Code Division Multiple Access (MC-DS-CDMA)
Holmes, Violeta, Sibley, Martin J.N., Mather, Peter, Alaiwi, A   +3 more
core   +4 more sources

Sex Differences in Spontaneous Brain Activity in Adolescents With Conduct Disorder

Frontiers in Psychology, 2018
Purpose: Sex differences in conduct disorder (CD) pathophysiology have yet to be resolved. In this study, we applied the amplitude of low-frequency fluctuations (ALFF) and fractional ALFF (fALFF) to compare spontaneous brain activity in male versus ...
Wanyi Cao, Xiaoqiang Sun, Daifeng Dong, Shuqiao Yao, Bingsheng Huang, Bingsheng Huang   +5 more
doaj   +1 more source

Modulation of resonance cone trajectories by low frequency density fluctuations

, 1976
It is shown that the previously reported strong linear modulation of lower hybrid waves by low frequency fluctuations is actually a modulation of the lower hybrid cone trajectory. The changing trajectory has the appearance of an amplitude modulation when
Bellan, P., Wong, K. L.
core   +1 more source

Altered Amplitude of Low-Frequency Fluctuations and Degree Centrality in Patients with Acute Subjective Tinnitus: A Resting-State Functional Magnetic Resonance Imaging Study

Journal of Integrative Neuroscience, 2022
Background: The difference in spontaneous brain activity between acute subjective tinnitus patients (with or without hearing loss) and control participants was explored using the amplitude of low-frequency fluctuations and degree centrality methods ...
Jianfei Chen, Li Fan, Guoqian Cai, Bing Hu, Yuanping Xiong, Zhiyuan Zhang   +5 more
doaj   +1 more source

Large Amplitude, Low Frequency Plasma Fluctuations at Comet Giacobini-Zinner

Geophysical Research Letters, 1986
Very large amplitude fluctuations in electron density, temperature, and flow velocity were a prominent aspect of the solar wind interaction with comet Giacobini‐Zinner during the ICE encounter in September 1985. These fluctuations were detected at a distance of at least 9 × 105 km and grew in amplitude as ICE approached the comet, peaking in amplitude ...
J. T. Gosling, J. R. Asbridge, S. J. Bame, M. F. Thomsen, R. D. Zwickl   +4 more
openaire   +1 more source

Amplitude of Low Frequency Fluctuation Abnormalities in Adolescents with Online Gaming Addiction

PLoS ONE, 2013
La mayoría de los estudios previos de neuroimagen han demostrado anomalías funcionales tanto estructurales como relacionadas con las tareas en adolescentes con adicción al juego en línea (OGA). Sin embargo, pocos estudios de resonancia magnética funcional (fMRI) se centraron en la intensidad regional de las fluctuaciones espontáneas en el nivel de ...
Kai Yuan, Chenwang Jin, Ping Cheng, Xuejuan Yang, Tao Dong, Yanzhi Bi, Lihong Xing, Karen M. von Deneen, Dahua Yu, Junyu Liu, Jun Liang, Tingting Cheng, Wei Qin, Jie Tian   +13 more
openaire   +4 more sources