Results 51 to 60 of about 3,698,626 (376)

Split-spectrum amplitude-decorrelation angiography with optical coherence tomography

Optics Express, 2012
Amplitude decorrelation measurement is sensitive to transverse flow and immune to phase noise in comparison to Doppler and other phase-based approaches. However, the high axial resolution of OCT makes it very sensitive to the pulsatile bulk motion noise ...
Yali Jia, O. Tan, J. Tokayer, B. Potsaid, Yimin Wang, J. Liu, Martin F. Kraus, H. Subhash, J. Fujimoto, J. Hornegger, David Huang   +10 more
semanticscholar   +1 more source

Bootstrapping a Five-Loop Amplitude Using Steinmann Relations. [PDF]

Physical Review Letters, 2016
The analytic structure of scattering amplitudes is restricted by Steinmann relations, which enforce the vanishing of certain discontinuities of discontinuities.
S. Caron-Huot, L. Dixon, Andrew J. McLeod, Matt von Hippel   +3 more
semanticscholar   +1 more source

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

Fusing gauge theory tree amplitudes into loop amplitudes [PDF]

Nuclear Physics B, 1995
49 pages, SLAC-PUB ...
Bern, Z., Dixon, L., Dunbar, D. C., Kosower, D. A.   +3 more
openaire   +4 more sources

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

Resonant oscillation of vertical working part of conveyer-loader

Қарағанды университетінің хабаршысы. Физика сериясы, 2019
The experimental equipment for testing the screw loader of bulk materials with horizontal and vertical branches was designed and manufactured, which allows to determine the process productivity and power consumption according to the developed methods ...
I. Hevko, O. Lyashuk, M. Sokil, L. Slobodian, V. Hud, Yu. Vovk   +5 more
doaj   +1 more source

Three-loop critical exponents, amplitude functions, and amplitude ratios from variational perturbation theory

, 2000
We use variational perturbation theory to calculate various universal amplitude ratios above and below T_c in minimally subtracted phi^4-theory with N components in three dimensions.
A. R. Rajantie, A. R. Rajantie, B. Kastening, B. Li, B. Van den Bossche, C. Bagnuls, C. Bagnuls, C. Bagnuls, C. Bervillier, C. Bervillier, C. Bervillier, C. Gutsfeld, D. I. Kazakov, D. J. Wallace, D. J. Wallace, E. Brézin, E. Brézin, E. Brézin, E. Brézin, E. Brézin, F. J. Halfkann, F. J. Wegner, G. A. Baker, G. A. Baker, G. M. Avdeeva, G. Münster, G. Parisi, H. J. Krause, H. J. Krause, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, H. Kleinert, I. D. Lawrie, I. S. Gradshteyn, J. A. Lipa, J. A. Lipa, J. C. Le Guillou, J. C. Le Guillou, J. C. Le Guillou, J. F. Nicoll, J. S. Kang, J. Zinn-Justin, J. Zinn-Justin, J. Zinn-Justin, K. G. Chetyrkin, K. Wilson, K. Wilson, K. Wilson, M. E. Fisher, M. Strösser, M.-C. Chang, P. C. Hohenberg, R. Guida, R. Guida, R. Schloms, R. Schloms, R. Schloms, S. A. Antonenko, S. A. Larin, S. S. C. Burnett, S. S. C. Burnett, V. Dohm, V. Privman   +69 more
core   +1 more source

Model selection for amplitude analysis [PDF]

, 2015
Model complexity in amplitude analyses is often a priori under-constrained since the underlying theory permits a large number of possible amplitudes to contribute to most physical processes.
Guegan, Baptiste, Hardin, John, Stevens, Justin, Williams, Mike   +3 more
core   +2 more sources

Sparse Phase Retrieval via Truncated Amplitude Flow [PDF]

IEEE Transactions on Signal Processing, 2016
This paper develops a novel algorithm, termed SPARse Truncated Amplitude flow (SPARTA), to reconstruct a sparse signal from a small number of magnitude-only measurements.
G. Wang, Liang Zhang, G. Giannakis, M. Akçakaya, Jie Chen   +4 more
semanticscholar   +1 more source

Shadow celestial amplitudes

Journal of High Energy Physics, 2023
Abstract We study scattering amplitudes in the shadow conformal primary basis, which satisfies the same defining properties as the original conformal primary basis and has many advantages over it. The shadow celestial amplitudes exhibit locality manifestly on the celestial sphere, and behave like correlation functions in conformal ...
Chi-Ming Chang, Wei Cui, Wen-Jie Ma, Hongfei Shu, Hao Zou   +4 more
openaire   +3 more sources