Results 211 to 220 of about 370,911 (247)
Some of the next articles are maybe not open access.
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2015
Purpose– The consideration of uncertainties in the numerical computation of electromagnetic fields has recently gained a lot of attention. Most publications focus on the creation of models for the uncertainty quantification, however, neglect the inaccuracy of the applied finite element model itself.
Peter Offermann, Kay Hameyer
openaire +1 more source
Purpose– The consideration of uncertainties in the numerical computation of electromagnetic fields has recently gained a lot of attention. Most publications focus on the creation of models for the uncertainty quantification, however, neglect the inaccuracy of the applied finite element model itself.
Peter Offermann, Kay Hameyer
openaire +1 more source
An analysis of the phase equilibria in the Fe−FeS system
Metallurgical Transactions B, 1975Applying a previously developed thermodynamic model to available experimental data from different phase equilibria in the Fe−FeS system, an attempt has been made to reconcile the results from different investigations. Analytical expressions for the free energy of the individual phases are recommended.
Mats Hillert, L. -I. Staffansson
openaire +1 more source
Structural and magnetic analysis of MBE-grown Fe/Si/Fe and Fe/Ge/Fe sandwiches
Journal of Magnetism and Magnetic Materials, 1997Abstract The structure and the interlayer exchange coupling in MBE-grown nominal Fe/Ge1−xFex/Fe(x=0.0, 0.25, 0.33, 0.5) and Fe/Si/Fe sandwiches with wedge-shaped spacer layers were investigated. In the case of Fe/Si a sample with a wedge-shaped magnetic layer was also studied. From a structural analysis with LEED and from a magnetic analysis with the
de Vries, J.J. +6 more
openaire +1 more source
NMR analysis of ferromagnets: Fe oxides
Solid State Nuclear Magnetic Resonance, 2009A short historical review is given on internal field NMR of ferromagnets, illustrated with recent pulsed NMR spectra of the elemental ferromagnets Fe, Co and Ni and the Fe-oxides magnetite, maghemite and hematite, which, with the exception of maghemite, have resonance frequencies first reported over 45 years ago.
T J, Bastow, A, Trinchi
openaire +2 more sources
Environmental Science & Technology, 2021
To quantitatively probe iron intermediate species [Fe(V)/Fe(IV)] in Fe(VI) oxidation, this study systematically investigated the reaction kinetics of Fe(VI) oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic)acid (ABTS) at different ratios of [ABTS]0/[Fe(VI)]0 (i.e., >1.0, =1.0, and 1.0, experimental data and model simulation both indicated
Cong Luo +4 more
openaire +2 more sources
To quantitatively probe iron intermediate species [Fe(V)/Fe(IV)] in Fe(VI) oxidation, this study systematically investigated the reaction kinetics of Fe(VI) oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic)acid (ABTS) at different ratios of [ABTS]0/[Fe(VI)]0 (i.e., >1.0, =1.0, and 1.0, experimental data and model simulation both indicated
Cong Luo +4 more
openaire +2 more sources
PIXE analysis of Fe content in Fe-implanted GaN film
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2006The diluted magnetic semiconductors (DMSs) were achieved by the ion implantation. Fe+ ions (250 keV) were implanted into n-type GaN at room temperature with doses ranging from 8 X 10(15) cm(-2) to 8 X 10(16) cm(-2) and subsequently rapidly annealed at 800 degrees C for 5 m in N-2 ambient. PIXE was employed to determine the Fe-implanted content.
B. Zhang, L.Q. Shi, C.C. Chen, D.G. Zhao
openaire +1 more source
NONLINEAR FE ANALYSIS OF THE HYSTERESIS BEHAVIOR OF SMA
International Journal of Computational Engineering Science, 2001This paper presents a nonlinear finite element procedure for the simulation of the hysteresis behavior and the shape memory effect of shape memory alloy (SMA) materials. The consitutive equation is based on the consistent mathematical description of martensite fraction evolution during the thermoelastic phase transformation in shape memory alloys ...
J. Ren, Kim-Meow Liew, S. A. Meguid
openaire +2 more sources
An introduction to FE analysis with Excel‐VBA
Computer Applications in Engineering Education, 2017ABSTRACTAimed primarily for educational use, an effective platform for 2‐dimensional FE stress analysis was developed by making use of the Excel‐VBA program. With the undergraduate students as the target group, the educational emphasis was placed on the practical application of linear elasticity and the proper use of the FE method.
openaire +2 more sources
A three-dimensional Fe nonlinear analysis of membranes
Computers & Structures, 1996This paper presents a three-dimensional finite element method for computing stress and deformation of membrane structures. A conjugate pair of strain and stress tensors, the Green strain tensor and the Second Piola-Kirchhoff stress tensor are adopted to give the constitutive equation of Mooney material. By means of exploiting the plane stress condition
Wu, Baoguo, Du, Xingwen, Tan, Huifeng
openaire +1 more source
FE analysis of a low-frequency microstrip antenna
IEEE Transactions on Magnetics, 2002The design and the finite-element analysis of a novel microstrip antenna suitable for low-frequency applications is presented. The patch is mounted on a double-layered substrate of ferroelectric and ferrimagnetic materials to lower the resonant frequencies.
ARANEO, Rodolfo, CELOZZI, Salvatore
openaire +3 more sources