Results 121 to 130 of about 54,486 (301)

Pulsation Frequencies and Modes of Giant Exoplanets

, 2012
We calculate the eigenfrequencies and eigenfunctions of the acoustic oscillations of giant exoplanets and explore the dependence of the characteristic frequency and the eigenfrequencies on several parameters: the planet mass, the planet radius, the core ...
Bihan, Bastien Le, Burrows, Adam
core   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

The theoretical instability strip of M dwarf stars

, 2013
The overstability of the fundamental radial mode in M dwarf models was theoretically predicted by Rodr\'iguez-L\'opez et al. (2012). The periods were found to be in the ranges ~25-40 min and ~4-8 h, depending on stellar age and excitation mechanism.
Amado, P. J., MacDonald, J., Moya, A., Mullan, D., Rodríguez-López, C.   +4 more
core   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

Numerical Analysis on Pressure Fluctuation and Radial Force of Disc Pump with Straight Blade

Shiyou jixie, 2015
Study on pressure fluctuation of disc pump with radial straight blade has a great significance on understanding the pump transient characteristics and improving its operating stability.Three-dimensional unsteady numerical simulation has been conducted on
Xie Yongchao, Chen Guoming, Zhang Ye, Sun Zhengwei, Zhang Jianbin   +4 more
doaj  

Analysis of Flow and Pressure Pulsation in Draft Tube of Francis Turbine under Different Guide Vane Opening

Renmin Zhujiang, 2023
In order to explore the influence of the opening of the movable guide vane on the flow and pressure pulsation in the draft tube of the Francis turbine,the steady and unsteady numerical simulations were carried out by establishing a three-dimensional full-
REN Haibo, YU Bo, WANG Kui, WANG Luobin
doaj  

Stellar Inversion Techniques

, 2017
Stellar seismic inversions have proved to be a powerful technique for probing the internal structure of stars, and paving the way for a better understanding of the underlying physics by revealing some of the shortcomings in current stellar models.
A.G. Kosovichev, A.S. Brun, D. Gough, D. Lynden-Bell, D.R. Reese, F.P. Pijpers, F.P. Pijpers, F.P. Pijpers, G. Backus, G. Buldgen, G. Masters, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J. Schou, J. Schou, J.P. Marques, J.R. Elliott, M. Asplund, M. Bazot, M.C. Rabello-Soares, M.J. Thompson, P. Eggenberger, P. Ledoux, S. Basu, S. Basu, S. Basu, S. Charpinet, S. Deheuvels, S. Deheuvels, T. Ceillier, T.S. Metcalfe, V. Silva Aguirre, W. Dziembowski, W. Unno   +33 more
core   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Numerical Investigation of Rotor and Stator Matching Mode on the Complex Flow Field and Pressure Pulsation of a Vaned Centrifugal Pump

Energies
The match of rotor and stator blades significantly affects the flow field structure and flow-induced pressure pulsation characteristics inside the pump.
Leilei Du, Fankun Zheng, Bo Gao, Mona Gad, Delin Li, Ning Zhang   +5 more
doaj   +1 more source

Experimental investigation on the correlation of pressure pulsation and vibration of axial flow pump

Advances in Mechanical Engineering, 2019
Pressure and vibration displacement value are relatively measured by 14 pressure sensors and 2 vibration sensors distributing inside the tank-type model axial flow pump device under different flow rates.
Xiaohui Duan, Fangping Tang, Wenyong Duan, Wei Zhou, Lijian Shi   +4 more
doaj   +1 more source