Results 151 to 160 of about 206,849 (319)
The evolution to steady nonlinear pulsation in stellar models [PDF]
, 1988 G. Kovács, J. R. Buchler
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Advanced Engineering Materials, EarlyView.Picosecond direct laser interference patterning (DLIP) enables precise microstructure fabrication on stainless steel. Using a multiscan approach, high‐aspect‐ratio patterns are achieved. Fluence influences structure growth and homogeneity, with smaller periods yielding better uniformity.
Fabian Ränke +5 more
wiley +1 more source
Nonradial, nonadiabatic stellar pulsations
The Astrophysical Journal, 1990 This paper describes how nonradial stellar pulsations can be modeled using a Lagrangian formulation. The adiabatic eigenvalues of this operator are compared to previously published results, using simple stellar models to show the equivalence of this method and other techniques.
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Advanced Engineering Materials, EarlyView.This study explores combining two existing aerospace titanium alloy powders, processing them via field‐assisted sintering technology and the subsequent discovery of a novel alloy composition, termed S23, with ultra‐high tensile toughness. Fine‐scale alpha precipitates favorably form in the alloy despite the relatively slow cooling, providing an ...
Samuel Lister +2 more
wiley +1 more source
The relationship between photometric and spectroscopic oscillation amplitudes from 3D stellar atmosphere simulations. [PDF]
Mon Not R Astron Soc, 2021 Zhou Y +7 more
europepmc +1 more source
The Coupling Coefficients of Pulsation for Radiative Stellar Models [PDF]
, 1993 F. Yamakawa, Toru Ishida, M. Takeuti
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Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders
Advanced Engineering Materials, EarlyView.This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo +8 more
wiley +1 more source
The extraordinary frequency pattern variation in δ Scuti stars
The Open Journal of AstrophysicsInspection of the periodograms of TESS delta Scuti stars indicates that there is little, if any, similarity between the frequencies of stars in the same region of the H-R diagram.
Luis A. Balona
doaj +1 more source
Spectroscopic evidence for a large spot on the dimming Betelgeuse. [PDF]
Nat Commun, 2021 Alexeeva S +6 more
europepmc +1 more source
Pulsation Modes of Spherical Stellar Systems [PDF]
, 1998 J. A. Sellwood, C. Pryor
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