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Probing the Symmetry Energy with the Spectral Pion Ratio [PDF]

open access: yesPhysical Review Letters, 2021
Many neutron star (NS) properties, such as the proton fraction within a NS, reflect the symmetry energy contributions to the Equation of State that dominate when neutron and proton densities differ strongly. To constrain these contributions at supra-saturation densities, we measure the spectra of charged pions produced by colliding rare isotope tin (Sn)
J. Estee   +62 more
openaire   +4 more sources

Investigation of nuclear structure for 142/54 Xe 88 isotope using interacting boson model

open access: yesKuwait Journal of Science, 2023
The interacting boson model (IBM-1) is appropriate for describing nuclear levels of positive parity of even–even nuclei only. IBM-1 was used to calculate energy ratios, energy levels, and energy transitions for 142/54 Xe 88 isotope that belongs to mixed ...
Alya'a Abdulkadhim Sabry
doaj   +1 more source

Reflection and Transmission of Plane Wave at an Interface Between Two Rotating Micropolar Piezoelectric Solid Half-Spaces

open access: yesArchives of Acoustics, 2021
In this paper, we investigate a problem on reflection and transmission of plane-waves at an interface between two dissimilar half-spaces of a transversely isotropic micropolar piezoelectric material.
Baljeet SINGH   +2 more
doaj   +1 more source

Dual-Energy Computed Tomography Proton-Dose Calculation with Scripting and Modified Hounsfield Units [PDF]

open access: yesInternational Journal of Particle Therapy, 2021
Purpose: To describe an implementation of dual-energy computed tomography (DECT) for calculation of proton stopping-power ratios (SPRs) in a commercial treatment-planning system.
Anthony Kassaee, MS   +12 more
doaj   +1 more source

Fault diagnosis of low‐speed rolling bearing based on weighted reconstruction of vibration envelopes

open access: yesWind Energy, 2023
The main bearing supports the rotation of the main shaft of a wind turbine. It bears heavy dead weights as well as variable speed dynamic loading during operations; thus, it is a vulnerable part in a wind turbine drive train. Because of the low speed and
Yukun Huang   +5 more
doaj   +1 more source

Reflection-Refraction Coefficients and Energy Ratios in Couple Stress Micropolar Thermoviscous Elastic Solid

open access: yesInternational Journal of Applied Mechanics and Engineering, 2021
The reflection and refraction phenomenon of propagation of waves in couple stress micropolar thermoviscous elastic solid media with independent viscoelastic and micropolar properties have been studied.
Ravinder Kumar Sahrawat, Poonam
doaj   +1 more source

Astronomy with energy dependent flavour ratios of extragalactic neutrinos

open access: yesJournal of High Energy Physics, 2021
High energy astrophysical neutrinos interacting with ultralight dark matter (DM) can undergo flavour oscillations that induce an energy dependence in the flavour ratios.
Siddhartha Karmakar   +2 more
doaj   +1 more source

Dark energy from ratio gravity [PDF]

open access: yesPhysical Review D, 2018
The theory of Ratio Gravity (RG) proposes that the curvature of 3+1 spacetime originates from a deformation of a Cross Ratio, where similar mathematical structure to general relativity emerges. This paper studies RG using the framework of the Newman-Penrose spin formalism.
Liu, Chun Hing Jackie PHYS, Wang, Yi
openaire   +3 more sources

New Marginal Spectrum Feature Information Views of Humpback Whale Vocalization Signals Using the EMD Analysis Methods

open access: yesSensors, 2023
Marginal spectrum (MS) feature information of humpback whale vocalization (HWV) signals is an interesting and significant research topic. Empirical mode decomposition (EMD) is a powerful time–frequency analysis tool for marine mammal vocalizations.
Chin-Feng Lin   +4 more
doaj   +1 more source

Financial ratios in energy projects: The case of days sales of inventory [PDF]

open access: yesJournal of Project Management, 2021
The aim of this study is to explore the Days sales of inventory (DSI) as an indicator for inventory management among energy companies in Saudi Arabia for the period ranging from 2012 to 2019.
Bagais, Omar Ali   +1 more
doaj   +1 more source

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