Results 1 to 10 of about 226,732 (126)

Mutual coupling between stock market and cryptocurrencies. [PDF]

open access: yesHeliyon, 2023
We examine the relationship between the top five cryptos and the U.S. S&P500 index from January 2018 to December 2021. We use the novel General-to-specific Vector Autoregression (GETS VAR) and traditional Vector Autoregression (VAR) model to analyze the short- and long-run, cumulative impulse-response, and Granger causality test between S&P500 returns ...
Ahmed MY, Sarkodie SA, Leirvik T.
europepmc   +6 more sources

Dynamics of mutually coupled VCSELs [PDF]

open access: yesSPIE Proceedings, 2004
8 pages, 8 figures.-- Communication presented at: Physics and Simulation of Optoelectronic Devices XII (San Jose, CA, USA, 26 January 2004). We study the dynamics of two Vertical Cavity Surface Emitting Lasers (VCSELs), when they are bidirectionally coupled through the mutual injection of their coherent optical fields.
Vicente, Raúl, Mirasso, Claudio R.
openaire   +2 more sources

Decreasing Mutual Coupling in a Phased Array Using a Mutual Coupling Based Element [PDF]

open access: yes2019 IEEE Asia-Pacific Microwave Conference (APMC), 2019
Generally, mutual coupling substantially affects performance of arrays in both transmit and receive states. This paper is to address this challenge. In this paper, a densely packed S-band circularly polarized (CP) microstrip phased array antenna is designed.
Salarrahimi, Marzieh   +1 more
openaire   +2 more sources

Mutually delay-coupled semiconductor lasers: Mode bifurcation scenarios [PDF]

open access: yesOptics Communications, 2005
We study the spectral and dynamical behavior of two identical, mutually delay-coupled semiconductor lasers. We concentrate on the short coupling-time regime where the number of basic states of the system, the compound laser modes (CLMs), is small so that their individual behavior can be studied both experimentally and theoretically.
Erzgraber, H   +6 more
openaire   +2 more sources

Coherent regimes of mutually coupled Chua’s circuits [PDF]

open access: yesPhysical Review E, 2006
We study the dynamical regimes that emerge from the strongly coupling between two Chua's circuits with parameters mismatch. For the region around the perfect synchronous state we show how to combine parameter diversity and coupling in order to robustly and precisely target a desired regime.
Gomes da Silva, I.   +4 more
openaire   +6 more sources

Mutual optical injection in coupled DBR laser pairs [PDF]

open access: yes, 2009
We report an experimental study of nonlinear effects, characteristic of mutual optical coupling, in an ultra-short coupling regime observed in a distributed Bragg reflector laser pair fabricated on the same chip.
Avila   +34 more
core   +1 more source

Performance of MIMO beamforming transmission scheme in the presence of mutual coupling [PDF]

open access: yes, 2010
This paper reports investigations into mutual coupling effects on performance of a beamforming transmission scheme of a multiple-input multipleoutput (MIMO) system operating under Rician channel conditions.
Bialkowski, Marek E.   +2 more
core   +1 more source

Exploiting Constructive Mutual Coupling in P2P MIMO by Analog-Digital Phase Alignment [PDF]

open access: yes, 2017
In this paper, we propose a joint analog-digital (A/D) beamforming scheme for the point-to-point multiple-input-multiple-output system, where we exploit mutual coupling by optimizing the load impedances of the transmit antennas.
Li, A, Masouros, C
core   +1 more source

Measurement of mutual inductance from frequency dependence of impedance of AC coupled circuit using digital dual-phase lock-in amplifier

open access: yes, 2008
We present a simple method to determine the mutual inductance $M$ between two coils in a coupled AC circuit by using a digital dual-phase lock-in amplifier.
Abragam A.   +8 more
core   +1 more source

Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]

open access: yes, 2007
The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris   +4 more
core   +1 more source

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