Results 11 to 20 of about 15,594,346 (384)
Quantum geodesics reflecting the internal structure of stars composed of shells [PDF]
JCAP07(2024)089, 2023 In general relativity, an external observer cannot distinguish distinct internal structures between two spherically symmetric stars that have the same total mass $M$. However, when quantum corrections are taken into account, the external metrics of the stars will receive quantum corrections depending on their internal structures.
arxiv +1 more source
Aerospace, 2022 Condensed combustion products (CCPs) generated during the combustion of aluminized propellants can reflect invaluable information about the combustion mechanisms of propellants.
Xue-Li Liu +3 more
doaj +1 more source
Quantum Internal Structure of Plasmons [PDF]
Physical Review Letters, 2021 Plasmons are usually described in terms of macroscopic quantities such as electric fields and currents. However as fundamental excitations of metals they are also quantum objects with internal structure. We demonstrate that this can induce an intrinsic dipole moment which is tied to the quantum geometry of the Hilbert space of plasmon states. This {\it
Jinlyu Cao, H. A. Fertig, Luis Brey
openaire +4 more sources
Energies, 2022 The estimation of erosive burning is of great importance for the internal ballistics computation of a solid rocket motor (SRM) with a large aspect ratio.
Lin Sun +4 more
doaj +1 more source
The Confirmation of Thermal Boundary Parameters in an Oxygen Kerosene Fuel-Rich Rocket Engine
Aerospace, 2022 The thermal environment is an important factor in the design of liquid rockets. In this paper, theoretical analysis, numerical simulation and experimental testing are conducted to study the boundary thermal characteristics of a GOX/kerosene liquid rocket
Xianggeng Wei +5 more
doaj +1 more source
Aerospace, 2023 Solid rocket motors are prone to combustion instabilities, which may lead to various problems for the rockets, from unexpected oscillations, precision decreasing, to explosion.
Zhuopu Wang, Wenchao Zhang, Yuanzhe Liu
doaj +1 more source
Comprehensive Reviews in Food Science and Food Safety, 2020 Cell wall polysaccharides (CPSs) and polyphenols are major constituents of the dietary fiber complex in plant-based foods. Their digestion (by gut microbiota) and bioefficacy depend not only on their structure and quantity, but also on their ...
Xuwei Liu, C. Le Bourvellec, C. Renard
semanticscholar +1 more source
Uranus and Neptune: Origin, Evolution and Internal Structure [PDF]
Space Science Reviews, 2019 There are still many open questions regarding the nature of Uranus and Neptune, the outermost planets in the Solar System. In this review we summarize the current-knowledge about Uranus and Neptune with a focus on their composition and internal structure,
R. Helled, N. Nettelmann, T. Guillot
semanticscholar +1 more source
Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure
Aerospace, 2023 Solid propellant combustion and flow are significantly affected by condensed combustion products (CCPs) in solid rocket motors. A new aluminum agglomeration model is established using the discrete element method, considering the burning rate and ...
Songchen Yue +7 more
doaj +1 more source
Planetary Internal Structures [PDF]
, 2014 This chapter reviews the most recent advancements on the topic of terrestrial and giant planet interiors, including Solar System and extrasolar objects. Starting from an observed mass-radius diagram for known planets in the Universe, we will discuss the various types of planets appearing in this diagram and describe internal structures for each type ...
Baraffe, I +3 more
openaire +3 more sources