Results 41 to 50 of about 394,180 (145)

An insight into high-temperature deformation mechanism of magnesium in-situ composite through development of Johnson-Cook and constitutive model

International Journal of Lightweight Materials and Manufacture, 2023
The establishment of deformation mechanisms of Mg-metal matrix composite (Mg-MMC) is important to improve the high-temperature challenging applications.
Rohit Jain, Harsh Soni, R.P. Mahto, B.N. Sahoo   +3 more
doaj   +1 more source

A Simflowny-based high-performance 3D code for the generalized induction equation [PDF]

, 2018
In the interior of neutron stars, the induction equation regulates the long-term evolution of the magnetic fields by means of resistivity, Hall dynamics and ambipolar diffusion.
Arbona, Antoni, Bona, Carles, Carrasco, Federico, Martínez-Gómez, David, Massó, Joan, Miñano, Borja, Palenzuela, Carlos, Pons, José A., Viganò, Daniele   +8 more
core   +3 more sources

Correlation vs. Causation: The Effects of Ultrasonic Melt Treatment on Cast Metal Grain Size

Metals, 2014
Interest in ultrasonic treatment of liquid metal has waxed and waned for nearly 80 years. A review of several experiments representative of ultrasonic cavitation treatment of Al and Mg alloys shows that the theoretical mechanisms thought to be ...
J. B. Ferguson, Benjamin F. Schultz, Kyu Cho, Pradeep K. Rohatgi   +3 more
doaj   +1 more source

Designing a model for knowledge documentation in the Iranian medical university libraries by using structural equation modeling [PDF]

Journal of Research Development in Nursing and Midwifery, 2023
Background: Organizational knowledge management requires a structure or framework to identify, extract and document knowledge. The review of knowledge management sources shows that since the late 1980s, several cycles have been introduced in the field of
Omid Chehri, Alireza Isfandyari-Moghaddam, Seyed Aliakbar Famil Rohani, Faramarz Soheili   +3 more
doaj  

An implicit scheme for solving the anisotropic diffusion of heat and cosmic rays in the RAMSES code

, 2015
Astrophysical plasmas are subject to a tight connection between magnetic fields and the diffusion of particles, which leads to an anisotropic transport of energy.
Commerçon, Benoît, Dubois, Yohan
core   +2 more sources

Novel Node Localization Algorithm Based on Nonlinear Weighting Least Square for Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2012
Positioning of the location information of wireless sensor network nodes is one of the key issues in wireless sensor network applications. The traditional node positioning method based on least-square algorithm heavily depends on the ranging accuracy ...
Fu Xiao, Mingtan Wu, Haiping Huang, Ruchuan Wang, Sudan Wang   +4 more
doaj   +1 more source

On stability of discretizations of the Helmholtz equation (extended version)

, 2011
We review the stability properties of several discretizations of the Helmholtz equation at large wavenumbers. For a model problem in a polygon, a complete $k$-explicit stability (including $k$-explicit stability of the continuous problem) and convergence
A Bayliss, A. Buffa, AH Barnett, AK Aziz, B Pluymers, C Farhat, CS Morawetz, E Perrey-Debain, EA Spence, F. Ihlenburg, I Babuška, I Babuška, I Harari, I Harari, I. Babuška, JM Melenk, JM Melenk, JM Melenk, L Banjai, M Ainsworth, M Ainsworth, M Ainsworth, M Stojek, O Cessenat, O Cessenat, O Laghrouche, P Cummings, P Monk, P Monk, P Ortiz, R Hiptmair, R Leis, R Tezaur, RJ Astley, SA Sauter, SI Pohožaev, SN Chandler-Wilde, T Betcke, T Huttunen, T Huttunen, T Strouboulis, U Hetmaniuk, X Feng, X Feng, ZC Li   +44 more
core   +1 more source

An efficient adaptive h‐refinement for the RWG‐based electric field integral equation applied to antennas with waveport

IET Microwaves, Antennas & Propagation
An approximation scheme that combines approximate solutions with error estimators to accelerate the adaptive h‐refinement of the RWG‐based method of moments (MoM) with the electric field integral equation (EFIE) is presented.
Ning Ding, Lei Yin, Xunwang Zhao, ZhongChao Lin, Yu Zhang, Aiwen Luo, Xiaojie Dang   +6 more
doaj   +1 more source

Fischer decomposition by inframonogenic functions

, 2009
Let D denote the Dirac operator in the Euclidean space R^m. In this paper, we present a refinement of the biharmonic functions and at the same time an extension of the monogenic functions by considering the equation DfD=0. The solutions of this "sandwich"
Malonek, Helmuth R., Peña, Dixan Peña, Sommen, Frank   +2 more
core   +2 more sources

Application and analysis of an adaptive wave-based technique based on a boundary error indicator for the sound radiation simulation of a combustion engine model

Computer Assisted Methods in Engineering and Science, 2017
In recent years, Trefftz methods have received increasing attention, as being alternatives of the already well-established element-based simulation methods (e.g., finite element and boundary element methods).
Tamás Mócsai, Franz Diwoky, Achim Hepberger, Hans-Herwig Priebsch, Fulop Augusztinovicz   +4 more
doaj   +1 more source