Results 41 to 50 of about 2,396,626 (307)

Amplitude Control of Single Phase Capacitor Motor [PDF]

Kirkuk Journal of Science, 2010
The method is proposed to study the performance of single-phase capacitor motor with amplitude control. This is clearly shown by controlling the speed of the motor with varying the applied voltage to the control voltage while the excitation voltage is ...
Fatin.N. Barsoum
doaj   +1 more source

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Color-Kinematic Duality in ABJM Theory Without Amplitude Relations [PDF]

Int.J.Mod.Phys. A32 (2017) no.02n03, 1750002, 2014
We explicitly show that the Bern-Carrasco-Johansson color-kinematic duality holds at tree level through at least eight points in Aharony-Bergman-Jafferis-Maldacena theory with gauge group SU(N) x SU(N). At six points we give the explicit form of numerators in terms of amplitudes, displaying the generalized gauge freedom that leads to amplitude ...
arxiv   +1 more source

Celestial amplitude for 2d theory [PDF]

JHEP 12 (2022) 060, 2022
We explore celestial amplitude corresponding to $2d$ bulk $\mathcal{S}$-matrix. We consider scalar particles with identical mass and show that the celestial amplitude becomes the fourier transform of the $2d$ $\mathcal{S}$-matrix written in the rapidity variable.
arxiv   +1 more source

Recovery of harmonic signal from discrete samples

Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2021
The change–over from direct analog methods of measuring signal parameters to digital methods based on the use of analog–to–digital conversion (ADC) and microprocessor devices can be promising in the construction of various sensors.
Т. Бондаренко, I. Зенів
doaj   +1 more source

Probe of process of multiple-loop chains of parallel and consecutive joints [PDF]

E3S Web of Conferences, 2020
The article describes the formation of low-frequency currents in ferromagnetic oscillatory circuits. As a result of parallel and serial connection of multi-loop ferroresonance circuits, the frequencies of harmonics of the second-order amplitude of soft ...
Shаymamоv B., Rahmatov D., Khоlмurоdоv M., Mukhtorov A., Rаkhmamоvа M.   +4 more
doaj   +1 more source

Large-amplitude driving of a superconducting artificial atom: Interferometry, cooling, and amplitude spectroscopy [PDF]

, 2009
Superconducting persistent-current qubits are quantum-coherent artificial atoms with multiple, tunable energy levels. In the presence of large-amplitude harmonic excitation, the qubit state can be driven through one or more of the constituent energy ...
A. Fragner, A. Izmalkov, A. Izmalkov, A. Lupascu, A. Wallraff, A.J. Berkley, A.J. Kerman, A.L. Schawlow, A.O. Niskanen, A.O. Niskanen, A.V. Shytov, B.L.T. Plourde, C. Zener, C.H. Wal van der, C.M. Wilson, D. Vion, D.M. Berns, D.M. Berns, E.C.G. Stueckelberg, F. Deppe, F. Grossmann, F. Lang, F.R. Friedman, H. Nakamura, I. Chiorescu, I. Chiorescu, I. Siddiqi, J. Clarke, J. Clarke, J. Claudon, J. Johansson, J. Lisenfeld, J. Majer, J.C. Lee, J.C. Lee, J.E. Mooij, J.E. Mooij, J.H. Plantenberg, J.M. Fink, J.M. Gomez Llorente, J.M. Martinis, J.Q. You, J.R. Friedman, K. Saito, K. Saito, K.V.R.M. Murali, L. Thomas, L.D. Landau, L.P. Kouwenhoven, M. Grajcar, M. Grifoni, M. Hofheinz, M. Mark, M. Mark, M. Neeley, M. Sillanpaa, M. Steffen, M. Steffen, M. Wubs, M.A. Castellanos-Beltran, M.A. Sillanpaa, M.C. Baruch, M.S. Rudner, N. Katz, O. Astafiev, O. Naaman, P.J. Leek, P.K. Tien, R. Hanson, R. McDermott, R.C. Thompson, S. Ashhab, S. Saito, S. Yoakum, S.H.W. Ploeg van der, S.O. Valenzuela, Sergio O. Valenzuela, T. Hime, T. Yamamoto, T. Yamamoto, T.P. Orlando, W. Wernsdorfer, W.D. Oliver, W.G. Wiel van der, William D. Oliver, Y. Kayanuma, Y. Kayanuma, Y. Kayanuma, Y. Kayanuma, Y. Kayanuma, Y. Makhlin, Y. Nakamura, Y. Nakamura, Y. Nakamura, Y. Yu, Y.A. Pashkin, Z. Dutton   +96 more
core   +2 more sources

STATISTIC OF SEASONAL AND DIURNAL VARIATIONS OF DOPPLER FREQUENCY SHIFT OF HF SIGNALS AT MID-LATITUDE RADIO PATH [PDF]

Radio Physics and Radio Astronomy, 2020
Purpose: An experimental study of signatures of traveling ionospheric disturbances (TID) observed in diurnal-seasonal variations of the parameters of probe HF signals propagating on theoblique single-hop RWM–LFO radio path, derived from the yearlong ...
A. I. Reznychenko, A. V. Koloskov, A. O. Sopin, Y. M. Yampolski   +3 more
doaj   +1 more source

Positive amplitudes in the amplituhedron [PDF]

Journal of High Energy Physics, 2015
The all-loop integrand for scattering amplitudes in planar N = 4 SYM is determined by an "amplitude form" with logarithmic singularities on the boundary of the amplituhedron. In this note we provide strong evidence for a new striking property of the superamplitude, which we conjecture to be true to all loop orders: the amplitude form is positive when ...
Arkani-Hamed, Nima, Hodges, Andrew, Trnka, Jaroslav   +2 more
openaire   +6 more sources

Factorization of Mellin amplitudes [PDF]

Journal of High Energy Physics, 2015
We introduce Mellin amplitudes for correlation functions of $k$ scalar operators and one operator with spin in conformal field theories (CFT) in general dimension. We show that Mellin amplitudes for scalar operators have simple poles with residues that factorize in terms of lower point Mellin amplitudes, similarly to what happens for scattering ...
Goncalves, Vasco, Penedones, João Miguel, Trevisani, Emilio   +2 more
openaire   +4 more sources