Zobrazeno 1 - 10
of 4 454
pro vyhledávání: '"Reaction Rates"'
Autor:
Jelena Vesić
Publikováno v:
Particles, Vol 7, Iss 3, Pp 834-855 (2024)
A thorough understanding of nuclear reaction rates at low energies is essential for improving our understanding of energy generation in stars and primordial and stellar nucleosynthesis. At low energies, fusion reactions between charged particles are
Externí odkaz:
https://doaj.org/article/353fec4fb55444b588aa68b6261c2731
Autor:
Mohammed Issa Hussein
Publikováno v:
Polytechnic, Vol 14, Iss 1, Pp 93-103 (2024)
The study utilized weighted averages of cross sections in millibarn for (p,γ) reactions of 74Ge, 88Sr, 89Y, 90Zr, and 107Ag medium target elements from the EXFOR nuclear data library and compares them with evaluated from TALYS 1.95 nuclear model cod
Externí odkaz:
https://doaj.org/article/8c03a193164e42c4a112ff1f28d740d4
Publikováno v:
Ultrasonics Sonochemistry, Vol 110, Iss , Pp 107032- (2024)
In this study, machine learning (ML) algorithms were employed to predict the pseudo-1st-order reaction rate constants for the sonochemical degradation of aqueous organic pollutants under various conditions. A total of 618 sets of data, including ultr
Externí odkaz:
https://doaj.org/article/884261e0f8a649bc9b0ab57416a0703d
Publikováno v:
Physics Letters B, Vol 860, Iss , Pp 139180- (2025)
Helium burning is one of the most fundamental steps of stellar nucleosynthesis, as it describes the formation of life-determining element of carbon, while it plays a key role in the evolution of Red Giant, accreting White Dwarfs and Neutron Stars. In
Externí odkaz:
https://doaj.org/article/e6ea3f62c2ae4884b13655c565b2f18d
Akademický článek
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Autor:
Sk M. Ali, D. Gupta, K. Kundalia, S. Maity, Swapan K. Saha, O. Tengblad, J.D. Ovejas, A. Perea, I. Martel, J. Cederkall, J. Park, A.M. Moro
Publikováno v:
Physics Letters B, Vol 853, Iss , Pp 138673- (2024)
The measurement of the 7Be(d,3He)6Li* transfer cross section at 5 MeV/u is carried out. The population of the 2.186 MeV excited state of 6Li in this reaction channel is observed for the first time. The experimental angular distributions have been ana
Externí odkaz:
https://doaj.org/article/2314f8ab4afe494d9f3fba63e9a24b34
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 1, p L24 (2024)
Presolar grains are stardust particles that condensed in the ejecta or in the outflows of dying stars and can today be extracted from meteorites. They recorded the nucleosynthetic fingerprint of their parent stars and thus serve as valuable probes of
Externí odkaz:
https://doaj.org/article/35118008316d497bbd0f37f1308733ad
Publikováno v:
Jurnal Inovasi Pendidikan Kimia, Vol 17, Iss 1, Pp 1-12 (2023)
Liveworksheets on the Reaction Rate Material. The resulting interactive chemistry e-module has several advantages, namely learning becomes more interesting, easy to access anywhere by using the Internet smartphone and laptops, as innovative teaching
Externí odkaz:
https://doaj.org/article/ff729f49cb774d64bd5123906188e528
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 30 (2024)
We build on the simplified spectral deferred corrections (SDC) coupling of hydrodynamics and reactions to handle the case of nuclear statistical equilibrium (NSE) and electron/positron captures/decays in the cores of massive stars. Our approach blend
Externí odkaz:
https://doaj.org/article/f9872562b69e46c7afc2245c05f41f35
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 93 (2024)
The ^18 O( p , α ) ^15 N reaction is of particular importance for influencing the abundances of key isotopes such as ^19 F, ^18 O, and ^15 N. Peculiar abundances for these nuclei are observed from spectra or meteorite grains originating in asymptoti
Externí odkaz:
https://doaj.org/article/4c6268b4ca534654a2206ba5a41b4380