Results 51 to 60 of about 172,494 (276)

Roll Eccentricity Detection and Application Based on SFT and Regional DFT

Sensors, 2023
Roll eccentricity disturbance is a high-frequency periodic change signal caused by the irregular shape of the roll and roll bearing, which is difficult to identify and affects the periodic deviation of the exit thickness of the strip.
Kexin Yang, Gang Zheng, Zhe Yang
doaj   +1 more source

Application of extended Kalman filter for estimation of periodic disturbance and velocity ripple reduction in PMSM drive [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020
In this paper an application of extended Kalman filter (EKF) for estimation and attenuation of periodic disturbance in permanent magnet synchronous motor (PMSM) drive is investigated.
Ł.J. Niewiara, T. Tarczewski, L.M. Grzesiak   +2 more
doaj   +1 more source

Effect of Fourier filters in removing periodic systematic effects from CMB data

, 2011
We consider the application of high-pass Fourier filters to remove periodic systematic fluctuations from full-sky survey CMB datasets. We compare the filter performance with destriping codes commonly used to remove the effect of residual 1/f noise from ...
A. Mennella, A. Zacchei, Ashdown, B. Cappellini, Bennett, Bersanelli, Bhandari, D. Maino, Delabrouille, Doré, Efstathiou, Efstathiou, F. de Gasperin, G. Morgante, Górski, Hinshaw, Hivon, Jarosik, Keihänen, Kurki-Suonio, L. Terenzi, M. Bersanelli, M. Tomasi, Maino, Maino, Maris, Masi, Meinhold, Mennella, Mennella, Mennella, Mennella, Morgante, N. Mandolesi, Natoli, Poutanen, Revenu, S. Galeotta, Sandri, Seiffert, Stompor, Stompor, Tegmark, Tegmark, Terenzi, Tomasi, Tristram, Villa, Wright   +48 more
core   +1 more source

Blocking a wave: Frequency band gaps in ice shelves with periodic crevasses [PDF]

, 2011
We assess how the propagation of high-frequency elastic-flexural waves through an ice shelf is modified by the presence of spatially periodic crevasses.
Ashcroft, Chou, Douglas R. MacAyeal, Jason M. Amundson, Julian Freed-Brown, Landau, Sheng, Van der Veen, Van der Veen, Wendy W. Zhang   +9 more
core   +2 more sources

Thermospheric temperatures during geomagnetically disturbed periods.

Journal of geomagnetism and geoelectricity, 1986
Nighttime thermospheric temperatures were derived from Doppler line profiles of the [OI] 630nm emission that were observed by using a 15-cm high-resolution Fabry-Perot interferometer at a field station near Albany (42.68°N, 73.82°W), New York.The temperatures, obtained during magnetically quiet periods in May, June and July, 1978 when Kp≤2, are ...
S. OKANO, J. S. KIM
openaire   +2 more sources

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Bifurcation, chaotic behavior, and traveling wave solutions for the fractional (4+1)-dimensional Davey–Stewartson–Kadomtsev–Petviashvili model

Open Physics
This article investigates the traveling wave solution of the fractional (4+1)-dimensional Davey–Stewartson–Kadomtsev–Petviashvili model by using the complete discriminant system method.
Li Zhao, Jiang Yueyong
doaj   +1 more source

Comparison of different repetitive control architectures: synthesis and comparison. Application to VSI Converters [PDF]

, 2018
Repetitive control is one of the most used control approaches to deal with periodic references/disturbances. It owes its properties to the inclusion of an internal model in the controller that corresponds to a periodic signal generator.
Costa Castelló, Ramon, Ramos Fuentes, German A.   +1 more
core   +2 more sources

PICALM::MLLT10 translocated leukemia

FEBS Letters, EarlyView.
This comprehensive review of PICALM::MLLT10 translocated acute leukemia provides an in‐depth review of the structure and function of CALM, AF10, and the fusion oncoprotein (1). The multifaceted molecular mechanisms of oncogenesis, including nucleocytoplasmic shuttling (2), epigenetic modifications (3), and disruption of endocytosis (4), are then ...
John M. Cullen, Antonia C. Nakatsugawa, Natalie Barton, Henry Haines, Gary S. Stein, Janet L. Stein, Daniel S. Wechsler, Jessica L. Heath   +7 more
wiley   +1 more source

Frequency Adaptive Control Technique for Periodic Runout and Wobble Cancellation in Optical Disk Drives [PDF]

Journal of Systemics, Cybernetics and Informatics, 2006
Periodic disturbance occurs in various applications on the control of the rotational mechanical systems. For optical disk drives, the spirally shaped tracks are usually not perfectly circular and the assembly of the disk and spindle motor is unavoidably ...
Yee-Pien Yang, Jieng-Jang Liu
doaj