Results 41 to 50 of about 8,765 (304)

Embedding with a rigid substructure [PDF]

Journal of Mathematical Chemistry, 1997
This technical report is being reposted on the CS archive because the problem solved therein is essentially a least-squares formulation of the "sensor localization" problem, which is of wide-spread interest to this ...
Igor Najfeld, Timothy F. Havel
openaire   +2 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Coarse spaces over the ages

, 2010
The objective of this paper is to explain the principles of the design of a coarse space in a simplified way and by pictures. The focus is on ideas rather than on a more historically complete presentation.
Mandel, Jan, Sousedík, Bedřich
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

Some studies on the use of NASTRAN for nuclear power plant structural analysis and design [PDF]

, 1973
Studies made on the use of NASTRAN for nuclear power plant analysis and design are presented. These studies indicate that NASTRAN could be effectively used for static, dynamic and special purpose problems encountered in the design of such plants.
Setlur, A. V., Valathur, M.
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Population Genetic Analysis and Sub-Structuring of Theileria annulata in Sudan

Frontiers in Genetics, 2021
Theileria annulata, which causes tropical theileriosis, is a major impediment to improving cattle production in Sudan. Tropical theileriosis disease is prevalent in the north and central regions of Sudan.
Diaeldin A. Salih, Diaeldin A. Salih, Awadia M. Ali, Moses Njahira, Khalid M. Taha, Mohammed S. Mohammed, Joram M. Mwacharo, Ndila Mbole-Kariuki, Abdelrhim M. El Hussein, Richard Bishop, Robert Skilton   +10 more
doaj   +1 more source

Multispace and Multilevel BDDC

, 2008
BDDC method is the most advanced method from the Balancing family of iterative substructuring methods for the solution of large systems of linear algebraic equations arising from discretization of elliptic boundary value problems.
A Klawonn, A Toselli, Bedřich Sousedík, BF Smith, C Farhat, C Farhat, Clark R. Dohrmann, CR Dohrmann, J Li, J Li, J Mandel, J Mandel, J Mandel, J Mandel, Jan Mandel, M Dryja, SC Brenner, SC Brenner, SC Brenner, X Tu, X Tu   +20 more
core   +1 more source

Synthesis and control of generalised dynamically substructured systems [PDF]

, 2009
The experimental technique for testing engineering systems via the method of dynamic substructuring is receiving significant global interest, for example in the fields of large-scale structural, aerospace, and automotive system testing.
Li, G, Stoten, DP, Tu, J-Y
core   +1 more source