Results 21 to 30 of about 4,285,302 (266)
A multi-frequency RF photocathode gun [PDF]
AIP Conference Proceedings, 2012 The concept of a photocathode injection gun driven by several harmonically related phase-locked RF sources is considered. This concept is aimed at providing electron bunches with parameters as follows: charge/bunch ≥1 nC, bunch energy 5-10 MeV, bunch width 20-40 ps, and fundamental frequency = 1.3 GHz.
Kuzikova, S. V. +4 more
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Multivariable Repetitive-predictive Controllers using Frequency Decomposition [PDF]
, 2012 Repetitive control is a methodology for the tracking of a periodic reference signal. This paper develops a new approach to repetitive control systems design using receding horizon control with frequency decomposition of the reference signal.
Rogers, E +7 more
core +1 more source
Advances in classical and analytical mechanics: A reviews of author’s results [PDF]
Theoretical and Applied Mechanics, 2013 A review, in subjective choice, of author’s scientific results in area of: classical mechanics, analytical mechanics of discrete hereditary systems, analytical mechanics of discrete fractional order system vibrations, elastodynamics, nonlinear ...
Hedrih-Stevanović Katica R.
doaj +1 more source
Applied Sciences, 2016 This paper presents a novel tunable multi-frequency hybrid energy harvester (HEH). It consists of a piezoelectric energy harvester (PEH) and an electromagnetic energy harvester (EMEH), which are coupled with magnetic interaction.
Zhenlong Xu +3 more
doaj +1 more source
Community detection in multi-frequency EEG networks
Scientific Reports, 2023 AbstractFunctional connectivity networks of the human brain are commonly studied using tools from complex network theory. Existing methods focus on functional connectivity within a single frequency band. However, it is well-known that higher order brain functions rely on the integration of information across oscillations at different frequencies ...
Abdullah Karaaslanli +3 more
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Remote Sensing, 2023 In the framework of maritime surveillance, vessel detection techniques based on spaceborne synthetic aperture radar (SAR) images have promoted extensive applications for the effective understanding of unlawful activities at sea.
Roberto Del Prete +2 more
doaj +1 more source
Multi-dimensional band structure spectroscopy in the synthetic frequency dimension
, 2023 The concept of synthetic dimensions in photonics provides a versatile platform in exploring multi-dimensional physics. Many of these physics are characterized by band structures in more than one dimensions. Existing efforts on band structure measurements
Dali Cheng (528206) +3 more
core +1 more source
Journal of Marine Science and Engineering, 2023 This study was conducted to investigate the acoustic characteristics of largehead hairtails (Trichiurus japonicus) in the Southern Sea of South Korea from April 2022, using 18, 38, 70, 120, and 200 kHz split-beam echosounders.
Hyungbeen Lee +3 more
doaj +1 more source
Multi-Frequency Synthesis [PDF]
International Astronomical Union Colloquium, 1991 AbstractA method of improving image fidelity by using observations at multiple frequencies is described. We discuss the power and possible limitations of the technique. Results of narrow frequency range observations with MERLIN and global VLBI are presented. We conclude with a consideration of the possible future impact of this technique.
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Multi-frequency observations of Swift J1626.6-5156 [PDF]
Astronomy & Astrophysics, 2011 New figure and new table. Optical spectroscopic classification performed.
Reig, P. +3 more
openaire +6 more sources