Results 51 to 60 of about 1,963,432 (340)

Mechanical Structure Design and Experimental Study of Gamma-ray Monitor for Small Satellite Payload

Applied Sciences, 2022
In this paper, a novel mechanical structure for a gamma-ray monitor (GRM) is designed for a small satellite payload. Its structural stiffness, strength and dynamic response are directly related to the performance of the novel GRM, which must meet the ...
Pengfei Guo, Hongbing Xin, Sheng Yang, Shaolin Xiong, Xinqiao Li, Zhenghua An, Dali Zhang   +6 more
doaj   +1 more source

Catalog of 3 < z < 5.5 Quasar Candidates Selected among XMM-Newton Sources and Its Spectroscopic Verification

Frontiers in Astronomy and Space Sciences, 2017
We have compiled a catalog of 903 quasar candidates (including known quasars) at 3 < z < 5.5 selected among X-ray sources from the XMM-Newton serendipitous survey (3XMM-DR4 catalog).
Georgii Khorunzhev, Sergey Sazonov, Rodion Burenin, Maxim Eselevich   +3 more
doaj   +1 more source

Highlights of DAMA/LIBRA

EPJ Web of Conferences, 2016
The DAMA project develops and uses new/improved low background scintillation detectors to investigate the Dark Matter (DM) particle component(s) in the galactic halo and rare processes deep underground at the Gran Sasso National Laboratory (LNGS) of the ...
Bernabei R., Belli P., d’Angelo A., d’Angelo S., Di Marco A., Montecchia F., Incicchitti A., Cappella F., Caracciolo V., Cerulli R., Dai C.J., He H.L., Kuang H.H., Ma X.H., Sheng X.D., Wang R.G., Ye Z.P.   +16 more
doaj   +1 more source

Chaos in charged AdS black hole extended phase space

Physics Letters B, 2018
We present an analytical study of chaos in a charged black hole in the extended phase space in the context of the Poincare–Melnikov theory. Along with some background on dynamical systems, we compute the relevant Melnikov function and find its zeros ...
M. Chabab, H. El Moumni, S. Iraoui, K. Masmar, S. Zhizeh   +4 more
doaj   +1 more source

Minimal length scale correction in the noise of gravitons

European Physical Journal C: Particles and Fields, 2023
In this paper we have considered a quantized and linearly polarized gravitational wave interacting with a gravitational wave detector (interferometer detector) in the generalized uncertainty principle (GUP) framework. Following the analysis in Phys. Rev.
Soham Sen, Sunandan Gangopadhyay
doaj   +1 more source

Deformed Lorentz Symmetry and High-Energy Astrophysics (II) [PDF]

, 2000
Lorentz symmetry violation (LSV) can be generated at the Planck scale, or at some other fundamental length scale, and naturally preserve Lorentz symmetry as a low-energy limit (deformed Lorentz symmetry, DLS).
Gonzalez-Mestres, Luis
core   +8 more sources

Artificial Neuron Based on Electrical Anisotropy from WSe2 Field Effect Transistors

Advanced Science, EarlyView.
An artificial neuron was realized based on the anisotropic mobility of WSe2. Dendritic and axon‐multisynaptic performance of a neuron was achieved with optical and voltage pulses. Recognition accuracy of handwritten digits was obtained to 97% based on the synaptic weight of an artificial neuron.
Qi Sun, Ping Chen, Kun Lv, Chuanwen Chen, Jinsheng Zhu, Zhiling Chen, Yaxian Lu, Ni Zhang, Zongqian Tan, Tao Lin, Caofeng Pan   +10 more
wiley   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

Centaurus A at Ultra-High Energies [PDF]

, 2010
We review the importance of Centaurus A in high energy astrophysics as a nearby object with many of the properties expected of a major source of very high energy cosmic rays and gamma-rays.
Abraham, Aharonian, Allan, Beck, Bellido, Bellido, Benjamin J. Whelan, Berezinskii, Bond, Brown, Carra miñana, D'Urso, Di Giulio, Hague, Harton, Nagar, Philip G. Edwards, Rieger, Roger W. Clay, Schüssler, Steinle, Steinle, Sun, Suomijärvi, Wahlberg   +24 more
core   +1 more source

Preface: High energy astrophysics [PDF]

Frontiers of Physics, 2013
High energy astrophysics is one of the most active branches in the contemporary astrophysics. It studies astrophysical objects that emit X-ray and γ-ray photons, such as accreting super-massive and stellar-size black holes, and various species of neutron stars.
Bing Zhang, Peter Mésáros
openaire   +1 more source