Effect of a high beta insertion on resonant extraction from the energy doubler

1978 ◽  
Author(s):  
D. Edwards
Keyword(s):  
High Beta

Possibility of detecting a high-beta-gamma LLW repository prior to underground space utilization

1999 ◽  
Vol 5 (2) ◽  
pp. 29-35
Author(s):  
Hiroyuki Ikuse ◽  
Shuji Hashimoto ◽  
Masafumi Yamamoto ◽  
Katsuhide Matsumura
Keyword(s):  
Underground Space ◽  
Space Utilization ◽  
High Beta

Extremely high beta-transus temperature of graphene oxide reinforced high-temperature titanium alloy matrix composite

2021 ◽  
Vol 291 ◽  
pp. 129575
Author(s):  
Hang Chen ◽  
Guangbao Mi ◽  
Peijie Li ◽  
Xu Huang ◽  
Chunxiao Cao
Keyword(s):  
Titanium Alloy ◽  
Graphene Oxide ◽  
High Temperature ◽  
Matrix Composite ◽  
Beta Transus ◽  
Alloy Matrix ◽  
Transus Temperature ◽  
High Beta

scholarly journals Causal modulation of right hemisphere fronto-parietal phase synchrony with Transcranial Magnetic Stimulation during a conscious visual detection task

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chloé Stengel ◽  
Marine Vernet ◽  
Julià L. Amengual ◽  
Antoni Valero-Cabré
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Visual Perception ◽  
Frequency Band ◽  
Magnetic Stimulation ◽  
Visual Detection ◽  
Detection Task ◽  
Oscillatory Activity ◽  
Top Down ◽  
The Right ◽  
High Beta

AbstractCorrelational evidence in non-human primates has reported increases of fronto-parietal high-beta (22–30 Hz) synchrony during the top-down allocation of visuo-spatial attention. But may inter-regional synchronization at this specific frequency band provide a causal mechanism by which top-down attentional processes facilitate conscious visual perception? To address this question, we analyzed electroencephalographic (EEG) signals from a group of healthy participants who performed a conscious visual detection task while we delivered brief (4 pulses) rhythmic (30 Hz) or random bursts of Transcranial Magnetic Stimulation (TMS) to the right Frontal Eye Field (FEF) prior to the onset of a lateralized target. We report increases of inter-regional synchronization in the high-beta band (25–35 Hz) between the electrode closest to the stimulated region (the right FEF) and right parietal EEG leads, and increases of local inter-trial coherence within the same frequency band over bilateral parietal EEG contacts, both driven by rhythmic but not random TMS patterns. Such increases were accompained by improvements of conscious visual sensitivity for left visual targets in the rhythmic but not the random TMS condition. These outcomes suggest that high-beta inter-regional synchrony can be modulated non-invasively and that high-beta oscillatory activity across the right dorsal fronto-parietal network may contribute to the facilitation of conscious visual perception. Our work supports future applications of non-invasive brain stimulation to restore impaired visually-guided behaviors by operating on top-down attentional modulatory mechanisms.

Corrigendum: Analytic high-beta tokamak equilibria with poloidal-sonic flow (2009 Plasma Phys. Control. Fusion 51 035007)

2019 ◽  
Vol 61 (2) ◽  
pp. 029501
Author(s):  
Atsushi Ito ◽  
Noriyoshi Nakajima
Keyword(s):  
Plasma Phys ◽  
Sonic Flow ◽  
Control Fusion ◽  
High Beta

Dynamics of electromagnetic drift-flute waves in high-beta plasmas in the presence of sheared plasma flows

2009 ◽  
Author(s):  
I. Paraschiv ◽  
V. I. Sotnikov ◽  
O. G. Onishchenkoa ◽  
R. Presura ◽  
J. M. Kindel ◽  
...  
Keyword(s):  
Plasma Flows ◽  
High Beta

A full wave theory of high-harmonic fast wave absorption in high-beta plasmas

1998 ◽  
Vol 5 (6) ◽  
pp. 2284-2290 ◽  
Author(s):  
C. N. Lashmore-Davies ◽  
V. Fuchs ◽  
R. A. Cairns
Keyword(s):  
High Harmonic ◽  
Wave Theory ◽  
Fast Wave ◽  
Wave Absorption ◽  
Full Wave ◽  
High Beta

Active Stabilization of the Resistive-Wall Mode in High-Beta, Low-Rotation Plasmas

2006 ◽  
Vol 97 (4) ◽  
Author(s):  
S. A. Sabbagh ◽  
R. E. Bell ◽  
J. E. Menard ◽  
D. A. Gates ◽  
A. C. Sontag ◽  
...  
Keyword(s):  
Resistive Wall Mode ◽  
Active Stabilization ◽  
Resistive Wall ◽  
High Beta

Behavioral Induction of a High Beta State in Sensorimotor Cortex Leads to Movement Slowing

2021 ◽  
pp. 1-18
Author(s):  
Vignesh Muralidharan ◽  
Adam R. Aron
Keyword(s):  
Scalp Eeg ◽  
Movement Instruction ◽  
Temporal Features ◽  
Behavioral Paradigm ◽  
Human Experiments ◽  
Experimental Protocols ◽  
Health And Disease ◽  
Behavioral Method ◽  
Functional Relevance ◽  
High Beta

Abstract The sensorimotor beta rhythm (∼13–30 Hz) is commonly seen in relation to movement. It is important to understand its functional/behavioral significance in both health and disease. Sorting out competing theories of sensorimotor beta is hampered by a paucity of experimental protocols in humans that manipulate/induce beta oscillations and test their putative effects on concurrent behavior. Here, we developed a novel behavioral paradigm to generate beta and then test its functional relevance. In two human experiments with scalp EEG (n = 11 and 15), we show that a movement instruction generates a high beta state (postmovement beta rebound), which then slows down subsequent movements required during that state. We also show that this high initial beta rebound related to reduced mu–beta desynchronization for the subsequent movement and further that the temporal features of the beta state, that is, the beta bursts related to the degree of slowing. These results suggest that increased sensorimotor beta in the postmovement period corresponds to an inhibitory state—insofar as it retards subsequent movement. By demonstrating a behavioral method by which people can proactively create a high beta state, our paradigm provides opportunities to test the effect of this state on sensations and affordances. It also suggests related experiments using motor imagery rather than actual movement, and this could later be clinically relevant, for example, in tic disorder.

scholarly journals High beta diversity among small islands is due to environmental heterogeneity rather than ecological drift

2018 ◽  
Vol 45 (10) ◽  
pp. 2252-2261 ◽  
Author(s):  
Jinliang Liu ◽  
Mark Vellend ◽  
Zuhua Wang ◽  
Mingjian Yu
Keyword(s):  
Beta Diversity ◽  
Environmental Heterogeneity ◽  
Small Islands ◽  
High Beta ◽  
Ecological Drift
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