Results 51 to 60 of about 23,945,233 (235)

Time delay of SBS 0909+532

, 2006
The time delays between the components of a lensed quasar are basic tools to analyze the expansion of the Universe and the structure of the main lens galaxy halo.
A. P. Zheleznyak, A. Ullán, Beskin, Biggs, Burud, Burud, Burud, Burud, Chartas, Dai, E. Koptelova, Edelson, Fassnacht, Gaskell, Gil-Merino, Goicoechea, Goicoechea, Haarsma, Hjorth, Jakobsson, Kochanek, Kochanek, Kochanek, Koopmans, Koopmans, Koptelova, Kundic, L. J. Goicoechea, Lehár, Lovell, Lubin, Magain, McLeod, Mediavilla, Motta, Nakos, O. Burkhonov, Ofek, Oscoz, Ovaldsen, Page, Patnaik, Pelt, Pelt, Refsdal, Saha, Schechter, Serra-Ricart, Stepanyan, T. Akhunov, Ullán, V. V. Bruevich, Witt, Wyrzykowski, Ziad, Zickgrof   +55 more
core   +1 more source

Effects of dark energy and flat rotation curve on the gravitational time delay of particle with non-zero mass [PDF]

, 2016
The effects of several dark energy models on gravitational time delay of particles with non-zero mass are investigated and analytical expressions for the same are obtained at the first order accuracy.
Bhadra, Arunava, Ghosh, Shubhrangshu, Sarkar, Tamal   +2 more
core   +2 more sources

Fully Data‐Driven Time‐Delay Interferometry with Time‐Varying Delays

Annalen der Physik, 2023
AbstractRaw space‐based gravitational‐wave data like laser interferometer space antenna's (LISA) phase measurements are dominated by laser frequency noise. The standard technique to make this data usable for gravitational‐wave detection is time‐delay interferometry (TDI), which cancels laser noise terms by forming suitable combinations of delayed ...
Quentin Baghi, John G. Baker, Jacob Slutsky, James Ira Thorpe   +3 more
openaire   +2 more sources

Time-Delay Estimation Improves Active Disturbance Rejection Control for Time-Delay Nonlinear Systems

Machines
Lately, active disturbance rejection control (ADRC), a model-independent controller, has become popular for combating various forms of uncertain disturbances incurred in industrial applications.
Syeda Nadiah Fatima Nahri, Shengzhi Du, Barend J. van Wyk, Tawanda Denzel Nyasulu   +3 more
doaj   +1 more source

Time delay interferometry combination with zero-response

Results in Physics
In space-based gravitational wave detection, gravitational wave signals are detected by measuring the Doppler frequency shift of laser exchange between three satellites.
Pan-Pan Wang, Xiao-Yu Lu, Xin-Lei Zhao, Hao-Kang Chen, Jing Zhou, Weisheng Huang, Yu-Jie Tan, Han-Zhong Wu, Cheng-Gang Shao   +8 more
doaj   +1 more source

Solid state variable time delay [PDF]

, 1970
Variable time delay line does not require use of a magnetic field to control a time delay, and can both amplify and delay a signal. Device is inexpensive and space saving, it does not require mecanically moving components, eliminating detrimental ...
Fitzgerald, T. M.
core   +1 more source

Embedded Network Test-Bed for Validating Real-Time Control Algorithms to Ensure Optimal Time Domain Performance [PDF]

, 2012
The paper presents a Stateflow based network test-bed to validate real-time optimal control algorithms. Genetic Algorithm (GA) based time domain performance index minimization is attempted for tuning of PI controller to handle a balanced lag and delay ...
Das, Saptarshi, Gupta, Amitava, Mukherjee, Ayan, Pakhira, Anindya, Pan, Indranil   +4 more
core   +2 more sources

Synchronization of Time Delayed Systems by Common Delay Time Modulations [PDF]

ISRN Applied Mathematics, 2011
We investigate the synchronization phenomenon between two identical time delayed systems with the common time delay, modulated by a chaotic or random signal. The phenomenon is verified by the conditional Lyapunov exponent. The relation between the present form of synchronization with generalized one is also discussed.
Atanu Mukherjee, Dibakar Ghosh, Santo Banerjee   +2 more
openaire   +3 more sources

Time delay in κ-anti-de Sitter spacetime

Physics Letters B
Based on deformed translations in the κ-anti-de Sitter algebra, we derive a delay in the time of detection between a soft and a hard photon, which are simultaneously emitted at a distant event, to first order in the quantum gravity parameter.
Iarley P. Lobo
doaj   +1 more source

Reset-and-Hold Control of Systems With Time Delay

IEEE Access, 2022
Reset control is a kind of hybrid control which is capable of overcoming fundamental limitations on the performance intrinsic to linear time invariant (LTI) systems.
Jose F. Saez, Alfonso Banos, Aurelio Arenas   +2 more
doaj   +1 more source