Results 271 to 280 of about 566,679 (318)

Optimal structure of signal networks for efficient information aggregation. [PDF]

open access: yesSci Rep
Heidergott B   +3 more
europepmc   +1 more source

80 Years of Professor Wigner's Seminal Work "On Unitary Representations of the Inhomogeneous Lorentz Group"

, 2021
It is perhaps the most fundamental principle of Quantum Mechanics that the system of states forms a linear manifold,1 in which a unitary scalar product is defined.2 The states are generally represented by wave functions3 in such a way that φ and constant
E. Wigner
semanticscholar   +1 more source

Physics-Informed Deep Neural Network for Inhomogeneous Magnetized Plasma Parameter Inversion

IEEE Antennas and Wireless Propagation Letters, 2022
Plasma parameter inversion is important for space plasma physics and applications, particularly for inhomogeneous magnetized plasmas. A physics-informed deep neural network for Maxwell’s plasma coupling system is proposed in this letter.
Yangyang Zhang   +4 more
semanticscholar   +1 more source

Inhomogeneous growth processes

Physical Review Letters, 1990
It is proposed that inhomogeneities in the deposition rate can be a powerful tool for investigating properties of growing films. The macroscopic shape of the resulting surface deformation is discussed analytically for the growth equation proposed by Kardar, Parisi, and Zhang [Phys. Rev. Lett. 56, 889 (1986)].
Wolf, Dietrich, Tang, Lei-Han
openaire   +2 more sources

Stratified Inhomogeneity and Regional Inhomogeneity

Respiration, 1972
The diffusion in the lungs is sufficiently rapid to obliterate a measurable concentration gradient during a normal breathing cycle. The shape of the alveolar plateau in the single breath nitrogen washout curve is due mainly to the mechanical factors and some other possibilities.
openaire   +2 more sources

Inhomogeneous Ballistic Aggregation

Journal of Statistical Physics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frachebourg, L.   +2 more
openaire   +1 more source

Inhomogeneous Plane Waves

Archive for Rational Mechanics and Analysis, 1984
After an extended survey of the Gibbs-Synge theory of bivectors (complex vectors) the paper uses that theory to find results on the polarization of inhomogeneous plane waves. The link between bivectors and plane waves is that the field (e.g. displacement u or electric field E) corresponding to a train of such waves is described in terms of two ...
openaire   +2 more sources

Weakly Inhomogeneous Media Tomography

Ultrasonic Imaging, 2003
Our objective is to develop an ultrasonic scanner for breast imaging. High resolution is obtained by using wide-band spherical waves transmitted and measured in the near field zone (i.e., close to the skin) all around the organ. The tomographic approach that we adopt allows us to use low central frequency waves (3–7 MHz) that are suitable for good ...
Ferrière, Robert   +2 more
openaire   +3 more sources

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