Results 41 to 50 of about 773 (146)

Relativistic mechanics and thermodynamics: IV. Thermodynamic processes [PDF]

Two thermodynamic processes, an adiabatic gas compression and an isothermal gas compression, taking place in a moving lab are analysed using a four-vector fundamental equation, dEμ = δWμ + δQμ , a relativistic generalization of the first law of ...
Güemez Ledesma, Julio, Mier Maza, José Ángel   +1 more
core   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, Volume 347, Issue 5, June 2026.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

Ultrasound‐Assisted Synthesis and Comprehensive Characterization of Nanosized VO(II), Fe(III), and Ru(III) Complexes: From Density Functional Theory/Nonlinear Optical Properties to Pharmaceutical Applications and Docking Insights

ChemistryOpen, Volume 15, Issue 6, June 2026.
Ultrasound‐assisted synthesis enabled the formation of ultrafine hydrazone‐based metal complexes with controlled nanostructures and enhanced stability. Density functional theory revealed optimized geometries and electronic properties. The nanosized complexes exhibited superior antimicrobial, anticancer, and antioxidant activities, supported by ...
R. A. El‐Kasaby, Eida S. Al‐Farraj, Senem Akkoc, Amal H. Alsehli, Maher Fathalla, Samir A. Abdel‐Latif, Mashael A. Alghamdi, Ahmed M. Abu‐Dief   +7 more
wiley   +1 more source

Reeh-Schlieder meets Newton-Wigner [PDF]

, 1998
The Reeh-Schlieder theorem asserts the vacuum and certain other states to be spacelike superentangled relative to local fields. This motivates an inquiry into the physical status of various concepts of localization.
Fleming, Gordon N.
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Synthesis, Crystal Structure, Hirshfeld Surface, RDG, ELF, LOL, DFT, and Molecular Docking Studies of a Binuclear Copper(II) Carboxylate Complex

ChemistryOpen, Volume 15, Issue 6, June 2026.
A binuclear copper(II) phenylacetate–metronidazole complex was successfully synthesized and structurally characterized. Hirshfeld surface analysis confirmed dominant H···H interactions governing crystal packing stability. DFT calculations demonstrated strong agreement with experimental geometry.
Abiodun Atoyebi Ajibola, Mehran Feizi‐Dehnayebi, Senem Akkoc, Lesław Sieroń, Waldemar Maniukiewicz   +4 more
wiley   +1 more source

Objetos estelares compactos sujeitos a campos magnéticos fortes [PDF]

, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Física.Nesta tese aplicamos campos magnéticos da ordem de 10 17 G e 10 18 G à matéria de nucleons e estudamos sua influência
Casali, Rudiney Hoffmann
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Integrability properties for relativistic extended thermodynamics of polyatomic gas

, 2018
In a recent article (Ann Phys 377:414–445, 2017. https://doi.org/10.1016/ j.aop.2016.12.012), Pennisi and Ruggeri proposed a relativistic extended thermodynamics theory of polyatomic gas.
Maria Cristina Carrisi, M. C. Carrisi, S. Pennisi, T. Ruggeri   +3 more
core   +1 more source

Formal statement of the special principle of relativity [PDF]

, 2013
While there is a longstanding discussion about the interpretation of the extended, general principle of relativity, there seems to be a consensus that the special principle of relativity is absolutely clear and unproblematic.
Gomori, Marton, Szabo, Laszlo E.
core   +1 more source

Background Instability of Quintessence Model in Light of Entropy and Distance Conjecture

Fortschritte der Physik, Volume 74, Issue 6, June 2026.
ABSTRACT We apply the covariant entropy bound argument supporting the de Sitter swampland conjecture to the quintessence model, to find out the condition for the background to be unstable. More concretely, the background is unstable when the matter entropy given by the species number of the effective field theory increases more rapidly than the ...
Min‐Seok Seo
wiley   +1 more source

Interfaces in Numerical Relativistic hydrodynamics

, 2010
This thesis investigates numerical techniques for modelling sharp interfacesbetween relativistic fluids. The motivation for this work lies in obtaining accuratemodels of neutron star interiors for use in multidimensional simulationsin general relativity.
Millmore, Stephen Timothy
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