Numerical simulation and experimental research on cracking mechanism of twin-roll strip casting
High Temperature Materials and Processes, 2022 Based on the three-dimensional field of molten pool and twin-roll strip casting experiments, this work verified the cracking mechanism of the strip by establishing mathematical model and rolling experiments. The results showed that due to the instability
Lv Zheng +7 more
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The occurrence of binary evolution pulsators in classical instability strip of RR Lyrae and Cepheid variables [PDF]
, 2016 Single star evolution does not allow extremely low-mass stars to cross the classical instability strip (IS) during the Hubble time. However, within binary evolution framework low-mass stars can appear inside the IS once the mass transfer (MT) is taken ...
P. Karczmarek +7 more
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Pulsating hot O subdwarfs in ω Centauri: mapping a unique instability strip on the extreme horizontal branch [PDF]
, 2016 We present the results of an extensive survey for rapid pulsators among Extreme Horizontal Branch (EHB) stars in ω Cen. The observations performed consist of nearly 100 h of time-series photometry for several off-centre fields of the cluster, as well as ...
S. Randall +12 more
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Spatiotemporal dynamics for a diffusive mussel–algae model near a Hopf bifurcation point
Advances in Difference Equations, 2021 In this paper, the Hopf bifurcation and Turing instability for a mussel–algae model are investigated. Through analysis of the corresponding kinetic system, the existence and stability conditions of the equilibrium and the type of Hopf bifurcation are ...
Shihong Zhong, Xuehan Cheng, Biao Liu
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BLUE STRAGGLER MASSES FROM PULSATION PROPERTIES. II. TOPOLOGY OF THE INSTABILITY STRIP [PDF]
, 2015 We present a new set of nonlinear, convective radial pulsation models for main-sequence stars computed assuming three metallicities: Z = 0.0001, 0.001, and 0.008. These chemical compositions bracket the metallicity of stellar systems hosting SX Phoenicis
Giuliana Fiorentino +7 more
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CONTEMPORARY PROBLEMS OF ASTRONOMY: THE CHEMICAL COMPOSITION OF CEPHEIDS AND RELATED STARS
Odessa Astronomical Publications, 2017 In the short form we present the main results of spectroscopic analysis of the different kind of Cepheids and related stars: double-mode Cepheids, s-Cepheids, non-variable supergiants situated inside the Cepheids instability strip and Cepheids first time
S. M. Andrievsky, V. G. Klochkova
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HST+COS spectra of the double white dwarf CSS 41177 place the secondary inside the pulsational instability strip [PDF]
, 2015 We present Hubble Space Telescope + Cosmic Origins Spectrograph (HST+COS) data of the eclipsing double white dwarf binary CSS 41177. Due to the temperature difference between the two white dwarfs, the HST+COS far-ultraviolet data are dominated by the hot,
M. Bours +3 more
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Resonant Mode Coupling in δ Scuti Stars
The Astrophysical Journal, 2023 Delta Scuti ( δ Sct) variables are intermediate-mass stars that lie at the intersection of the main sequence and the instability strip on the Hertzsprung–Russell diagram.
Mohammed Mourabit, Nevin N. Weinberg
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Wear of Functionally Graded Coatings under Frictional Heating Conditions
Nanomaterials, 2021 Multilayered and functionally graded coatings are extensively used for protection against wear of the working surfaces of mechanisms and machines subjected to sliding contact.
Vladimir B. Zelentsov +2 more
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The instability strip and pulsation features of post-AGB star models [PDF]
, 2010 T. Aikawa
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