Results 11 to 20 of about 6,360,569 (404)

The radio-frequency quadrupole

open access: yesarXiv: Accelerator Physics, 2013
17 pages, contribution to the CAS - CERN Accelerator School: Course on High Power Hadron Machines; 24 May - 2 Jun 2011, Bilbao ...
Vretenar, Maurizio
openaire   +4 more sources

Radio Frequency Interference [PDF]

open access: yesSymposium - International Astronomical Union, 2002
We describe the nature of the interference challenges facing radio astronomy in the next decade. These challenges will not be solved by regulation only, negotiation and mitigation will become vital. There is no silver bullet for mitigating against interference. A successful mitigation approach is most likely to be a hierarchical or progressive approach
R.D. Ekers, J.F. Bell
openaire   +3 more sources

A 3-to-5 V Input, 80 Peak-to-Peak Voltage (Vpp) Output, 2.75% Total Harmonic Distortion Plus Noise (THD+N), 2.9 μF Load Piezoelectric Actuator Driver with Four-Switch Buck–Boost

open access: yesActuators, 2023
As human–computer interaction has become increasingly popular, haptic technology has become a research topic of great interest, since vibration perception, as a type of haptic feedback, can enhance user experience during an interaction. However, the high
Rui Ye   +3 more
doaj   +1 more source

Doppler Shift Tolerance of Typical Pseudorandom Binary Sequences in PMCW Radar

open access: yesSensors, 2022
In the context of all-digital radar systems, phase-modulated continuous wave (PMCW) based on pseudorandom binary sequences (PRBSs) appears to be a prominent candidate modulation scheme for applications such as autonomous driving.
Lucas Giroto de Oliveira   +9 more
doaj   +1 more source

Design and Micro-Nano Fabrication of a GaAs-Based On-Chip Miniaturized Bandpass Filter with Intertwined Inductors and Circinate Capacitor Using Integrated Passive Device Technology

open access: yesNanomaterials, 2022
In this study, we propose a miniaturized bandpass filter (BPF) developed by combining an approximate circular (36-gon) winding inductor, a circinate capacitor, and five air-bridge structures fabricated on a gallium arsenide (GaAs) substrate using an ...
Jian Chen   +6 more
doaj   +1 more source

Follow-up of 27 radio-quiet gamma-ray pulsars at 110-190 MHz using the international LOFAR station FR606 [PDF]

open access: yesA&A 654, A43 (2021), 2021
The Fermi Large Area Telescope has detected over 260 gamma-ray pulsars. About one quarter of these are labeled as radio-quiet. In the population of nonrecycled gamma-ray pulsars, the fraction of radio-quiet pulsars is higher, about one half. Most radio observations of gamma-ray pulsars have been performed at frequencies between 300 MHz and 2 GHz ...
arxiv   +1 more source

HTsort: Enabling Fast and Accurate Spike Sorting on Multi-Electrode Arrays

open access: yesFrontiers in Computational Neuroscience, 2021
Spike sorting is used to classify the spikes (action potentials acquired by physiological electrodes), aiming to identify their respective firing units. Now it has been developed to classify the spikes recorded by multi-electrode arrays (MEAs), with the ...
Keming Chen   +5 more
doaj   +1 more source

No strong radio absorption detected in the low-frequency spectra of radio-loud quasars at z > 5.6 [PDF]

open access: yesA&A 678, A128 (2023), 2023
We present the low-frequency radio spectra of 9 high-redshift quasars at $5.6 \leq z \leq 6.6$ using the Giant Metre Radio Telescope band-3, -4, and -5 observations ($\sim$300-1200 MHz), archival Low Frequency Array (LOFAR; 144 MHz), and Very Large Array (VLA; 1.4 and 3 GHz) data.
arxiv   +1 more source

Evaluation of inactivation of bovine coronavirus by low-level radiofrequency irradiation

open access: yesScientific Reports, 2023
Inactivation of influenza A virus by radiofrequency (RF) energy exposure at levels near Institute of Electrical and Electronics Engineers (IEEE) safety thresholds has been reported.
Jody C. Cantu   +9 more
doaj   +1 more source

Radio Labeling with Preassigned Frequencies [PDF]

open access: yesSIAM Journal on Optimization, 2002
A radio labeling of a graph G is an assignment of pairwise distinct, positive integer labels to the vertices of G such that labels of adjacent vertices differ by at least 2. The radio labeling problem (RL) consists in determining a radio labeling that minimizes the maximum label that is used (the so-called span of the labeling).
Bodlaender, H. L.   +4 more
openaire   +11 more sources

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