Results 41 to 50 of about 570,196 (180)

The Correlation Production in Thermodynamics

Entropy, 2019
Macroscopic many-body systems always exhibit irreversible behaviors. However, in principle, the underlying microscopic dynamics of the many-body system, either the (quantum) von Neumann or (classical) Liouville equation, guarantees that the entropy of an
Sheng-Wen Li
doaj   +1 more source

Vibrational and electronic entropy of β-cerium and γ-cerium measured by inelastic neutron scattering [PDF]

, 2002
Time-of-flight (TOF) inelastic neutron-scattering spectra were measured on β-cerium (double hcp) and γ-cerium (fcc) near the phase-transition temperature. Phonon densities of states (DOS) and crystal-field levels were extracted from the TOF spectra.
Bogdanoff, Peter D., Fultz, Brent, Kwei, George H., Manley, Michael E., McQueeney, Robert J., Osborn, Raymond   +5 more
core   +1 more source

N=4 Superconformal Algebra and the Entropy of HyperKahler Manifolds

, 2010
We study the elliptic genera of hyperKahler manifolds using the representation theory of N=4 superconformal algebra. We consider the decomposition of the elliptic genera in terms of N=4 irreducible characters, and derive the rate of increase of the ...
A Strominger, D Mumford, D Zagier, D Zagier, DA Hejhal, E Witten, E Witten, ET Whittaker, FJ Dyson, GE Andrews, GW Moore, H Rademacher, JH Bruinier, JH Bruinier, K Bringmann, K Hikami, K Hikami, K Hikami, K Hikami, K Hikami, K Ono, Kazuhiro Hikami, L Göttsche, LC Jeffrey, M Cvetič, M Eichler, N Hitchin, N Skoruppa, NY Reshetikhin, R Dijkgraaf, R Lawrence, T Eguchi, T Eguchi, T Eguchi, T Eguchi, T Eguchi, T Eguchi, T Eguchi, T Kawai, Tohru Eguchi, V Gritsenko   +40 more
core   +1 more source

Increase of black hole entropy in higher curvature gravity [PDF]

Physical Review D, 1995
We examine the Zeroth Law and the Second Law of black hole thermodynamics within the context of effective gravitational actions including higher curvature interactions. We show that entropy can never decrease for quasi-stationary processes in which a black hole accretes positive energy matter, independent of the details of the gravitational action ...
Jacobson, Ted, Kang, Gungwon, Myers, Robert C.   +2 more
openaire   +3 more sources

Entropy Generation Due to Laminar Incompressible Forced Convection Flow Through Parallel-Plates Microchannel

Entropy, 2004
: The entropy generation due to steady laminar forced convection fluid flow through parallel plates microchannel is investigated numerically. The effect of Knudsen, Reynolds, Prandtl, Eckert numbers and the nondimensional temperature difference on ...
Mohammad Al-Nimr, Mohammad Abuzaid, Osamah Haddad   +2 more
doaj   +1 more source

Entropy and Wealth

Entropy, 2021
While entropy was introduced in the second half of the 19th century in the international vocabulary as a scientific term, in the 20th century it became common in colloquial use.
Demetris Koutsoyiannis, G.-Fivos Sargentis   +1 more
doaj   +1 more source

Implementation of vigenere cipher 128 and square rotation in securing text messages

Jurnal Teknologi dan Sistem Komputer, 2020
Information that can be in the form of text, image, audio, and video, is a valuable asset that needs to be secured from unauthorized parties. This research aims to study the implementation of Vigenere cipher 128 (VC-128) and square rotation to secure ...
Rihartanto Rihartanto, Riris Kurnia Ningsih, Achmad Fanany Onnilita Gaffar, Didi Susilo Budi Utomo   +3 more
doaj   +1 more source

Chaos for Liouville probability densities

, 1995
Using the method of symbolic dynamics, we show that a large class of classical chaotic maps exhibit exponential hypersensitivity to perturbation, i.e., a rapid increase with time of the information needed to describe the perturbed time evolution of the ...
A. J. Lichtenberg, A. N. Kolmogorov, A. N. Kolmogorov, A. Peres, B. O. Koopman, C. E. Shannon, C. E. Shannon, C. E. Shannon, C. M. Caves, C. M. Caves, C. M. Caves, Carlton M. Caves, D. S. Ornstein, D. Welsh, E. Borel, E. Borel, E. T. Jaynes, E. T. Jaynes, E. T. Jaynes, G. J. Chaitin, H. Spohn, J. Ford, J. P. Crutchfield, M. V. Berry, R. Landauer, R. Landauer, R. Schack, R. Schack, R. Schack, Rüdiger Schack, V. I. Arnold, V. M. Alekseev, W. H. Zurek, W. H. Zurek   +33 more
core   +1 more source

Analysis of the synergistic complementarity between bubble entropy and dispersion entropy in the application of feature extraction

Frontiers in Physics, 2023
Most of the existing studies on the improvement of entropy are based on the theory of single entropy, ignoring the relationship between one entropy and another. Inspired by the synergistic relationship between bubble entropy (BE) and permutation entropy (
Xinru Jiang, Yingmin Yi, Yingmin Yi, Junxian Wu   +3 more
doaj   +1 more source

Multiplicities for LHC Nuclear Collisions Using HERA Structure Functions

, 1994
We compute in QCD perturbation theory the transverse energy carried by gluons, quarks and antiquarks with $p_T\ge p_0\approx 2$ GeV in Pb+Pb collisions at $\sqrt{s}=5500$ $A$GeV by using structure functions compatible with the small-$x$ increase observed
Abt, Biró, Derrick, Duke, Ellis, Eskola, Eskola, Eskola, Eskola, K. Kajantie, K.J. Eskola, Martin, P.V. Ruuskanen   +12 more
core   +2 more sources