Results 21 to 30 of about 53 (46)
Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions
Advances in Astronomy, Volume 2017, Issue 1, 2017., 2017 The spatially conformally flat approximation (CFA) is a viable method to deduce initial conditions for the subsequent evolution of binary neutron stars employing the full Einstein equations. Here we analyze the viability of the CFA for the general relativistic hydrodynamic initial conditions of binary neutron stars.
In-Saeng Suh +4 more
wiley +1 more source
Vacuum Condensate, Geometric Phase, Unruh Effect, and Temperature Measurement
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 In our previous work the possibility to use the Aharonov‐Anandan invariant as a tool in the analysis of disparate systems has been shown, including Hawking and Unruh effects, as well as graphene physics and thermal states. We show that the vacuum condensation, characterizing such systems, is also related with geometric phases and we analyze the ...
Antonio Capolupo +2 more
wiley +1 more source
Augmenting the Structures in a Swirling Flame via Diffusive Injection
Journal of Combustion, Volume 2014, Issue 1, 2014., 2014 Small scale experimentation using particle image velocimetry investigated the effect of the diffusive injection of methane, air, and carbon dioxide on the coherent structures in a swirling flame. The interaction between the high momentum flow region (HMFR) and central recirculation zone (CRZ) of the flame is a potential cause of combustion induced ...
Jonathan Lewis +4 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014 This study contributes towards describing the nature of cycle‐by‐cycle variability in homogeneous charge compression ignition (HCCI) engines. Experimental measurements were performed using a single cylinder research engine operated in the negative valve overlap (NVO) mode and fuelled with direct gasoline injection. Both stoichiometric and lean mixtures
Jacek Hunicz, Grzegorz Litak
wiley +1 more source
Fifth International Conference on High Performance Computing (HPC-UA 2018)
, 2022 We consider a multicriteria problem of integer linear programming with a targeting set of optimal solutions given by the set of all individual criterion minimizers (extrema).
Nikulin Yury, Emelichev Vladimir
core
Flow Measurements Using Particle Image Velocimetry in the Ultracompact Combustor
International Journal of Aerospace Engineering, Volume 2012, Issue 1, 2012., 2012 The potential for the ultracompact combustor (UCC) lie in future research to reduced fuel consumption and improved engine performance. Velocity measurements performed on the UCC test rig at the Air Force Institute of Technology revealed flow patterns and time‐averaged turbulence statistics for data taken burning hydrogen fuel in a straight and a curved
Levi M. Thomas +3 more
wiley +1 more source
Revealing Two Operation Modes of Perovskite Light‐Emitting Diodes Through Overshoot Pulses
Advanced Photonics Research, Volume 7, Issue 1, January 2026.Short, high‐intensity overshoot pulses (OSPs) may be generated by perovskite light‐emitting diodes (PeLEDs) depending on electrical pump pulse parameters, offset and afterpulse voltages. OSPs reveal two PeLED operation modes: the recombination mode, favorable for the conventional EL but preventing OSPs, and the accumulation mode, enabling the formation
Rokas Gegevičius +6 more
wiley +1 more source
Advances in Condensed Matter Physics, Volume 2011, Issue 1, 2011., 2011 The emerging structures in spinodal dewetting of thin nano films and spinodal decomposition of binary mixtures are found to be similar with certain differences attributed to the nonlinearities inherent in the wetting forces. This paper deals with the technological aspects of the spinodal processes by giving a brief account of the theory and to ...
Satya Pal Singh, Nigel Wilding
wiley +1 more source
Advanced Intelligent Systems, Volume 6, Issue 1, January 2024.A deep imitation learning structure is proposed for optimal trajectory planning of an unstable dynamic system. Given the system's initial conditions, the neural networks (NNs) imitate the iterative linear quadratic regulator to generate near‐optimal trajectories. Leveraging on NN gradients, optimizing the system's initial conditions, avoiding obstacles,
Bo-Hsun Chen, Pei-Chun Lin
wiley +1 more source
Spatiotemporal Analysis of Multichannel EEG: CARTOOL
Computational Intelligence and Neuroscience, Volume 2011, Issue 1, 2011., 2011 This paper describes methods to analyze the brain′s electric fields recorded with multichannel Electroencephalogram (EEG) and demonstrates their implementation in the software CARTOOL. It focuses on the analysis of the spatial properties of these fields and on quantitative assessment of changes of field topographies across time, experimental conditions,
Denis Brunet +3 more
wiley +1 more source