Results 61 to 70 of about 238,679 (287)

Post-Newtonian Gravitational Radiation and Equations of Motion via Direct Integration of the Relaxed Einstein Equations. I. Foundations [PDF]

, 2000
We present a self-contained framework called Direct Integration of the Relaxed Einstein Equations (DIRE) for calculating equations of motion and gravitational radiation emission for isolated gravitating systems based on the post-Newtonian approximation ...
A. Einstein, A. Einstein, A. Einstein, A. G. Wiseman, A. G. Wiseman, A. G. Wiseman, A. G. Wiseman, A. Papapetrou, A. S. Eddington, A. S. Eddington, B. R. Iyer, B. R. Iyer, C. Cutler, C. Cutler, C. M. Will, C. W. Misner, Clifford M. Will, E. Poisson, E. Poisson, H. Tagoshi, J. Ehlers, J. H. Taylor, J. H. Taylor, K. S. Thorne, K. S. Thorne, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. Blanchet, L. P. Grishchuk, M. Sasaki, M. Walker, M. Walker, M. Walker, Michael E. Pati, P. Jaranowski, P. Jaranowski, R. Epstein, R. V. Wagoner, S. Chandrasekhar, S. Chandrasekhar, S. Chandrasekhar, T. C. Quinn, T. Damour, T. Damour, T. Damour, T. Damour, T. Levi-Cività, V. Fock, W. de Sitter, W. de Sitter, W. L. Burke, Y. Mino, Y. Mino   +60 more
core   +3 more sources

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Signatures of Radiation Reaction in Ultra-Intense Laser Fields [PDF]

, 2011
We discuss radiation reaction effects on charges propagating in ultra-intense laser fields. Our analysis is based on an analytic solution of the Landau-Lifshitz equation.
Chris Harvey, F. Rohrlich, H. Spohn, H. Stephani, H. A. Lorentz, H. A. Lorentz, H. A. Lorentz, J. L. Synge, L. D. Landau, M. Abraham, Mattias Marklund, N. B. Narozhnyi, N. B. Narozhnyi, Thomas Heinzl, W. Becker, W. Heitler   +15 more
core   +3 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Quantum fields during black hole formation: how good an approximation is the Unruh state?

Journal of High Energy Physics, 2018
We study the quantum effects of a test Klein-Gordon field in a Vaidya space-time consisting of a collapsing null shell that forms a Schwazschild black hole, by explicitly obtaining, in a (1 + 1)-dimensional model, the Wightman function, the renormalised ...
Benito A. Juárez-Aubry, Jorma Louko
doaj   +1 more source

Radiation Mechanism of the Soft Gamma-ray Pulsar PSR B1509-58 [PDF]

, 2013
The outer gap model is used here to explain the spectrum and the energy dependent light curves of the X-ray and soft gamma-ray radiations of the spin-down powered pulsar PSR B1509-58.In the outer gap model, most pairs inside the gap are created around ...
Cheng, K. S., Takata, J., Wang, Y.
core  

Mode Switching and Subpulse Drifting in PSR B0826-34

, 2004
We present high-quality observations of PSR B0826-34 at 1374 MHz. The emission from this pulsar exhibits strong bursts of pulses followed by long periods of `null' pulses. When it is strong, the radiation extends through the whole pulse period.
Esamdin, A., Graham-Smith, F., Kramer, M., Lyne, A. G., Manchester, R. N., Wu, X.   +5 more
core   +1 more source

Hawking-like radiation from evolving black holes and compact horizonless objects [PDF]

, 2011
Usually, Hawking radiation is derived assuming (i) that a future eternal event horizon forms, and (ii) that the subsequent exterior geometry is static.
Barcelo, Carlos, Liberati, Stefano, Sonego, Sebastiano, Visser, Matt   +3 more
core   +2 more sources

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

PKCζ and JNK signaling regulate radiation-induced compensatory proliferation in parotid salivary glands.

PLoS ONE, 2019
Radiotherapy is a common treatment option for head and neck cancer patients; however, the surrounding healthy salivary glands are often incidentally irradiated during the process.
Wen Yu Wong, Sydney Allie, Kirsten H Limesand   +2 more
doaj   +1 more source