Results 101 to 110 of about 1,857,276 (291)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

The k-out-of-n:G System Viewed as a Multi-Server Queue

Mathematics
This paper extends the k-out-of-n:G reliability system to a multi-server queue. We study a multi-server reliability-queuing model with the N-policy of repair.
Achyutha Krishnamoorthy, Anu Nuthan Joshua, Ambily P. Mathew   +2 more
doaj   +1 more source

Hidden Sector Supergravity Breakdown

, 2001
Gravity mediated supersymmetry breakdown originated from a study of gaugino condensation in a hidden sector. We review this mechanism of supergravity breakdown from the original formulation in the early eighties to its natural implementation in ...
Antoniadis, Barbieri, Binetruy, Brignole, Candelas, Chamseddine, Chamseddine, Conrad, Cremmer, Cremmer, Cremmer, Derendinger, Derendinger, Dine, Dixon, Ellis, Ferrara, Ferrara, Ferrara, Font, Green, Gross, Gross, Hall, Hans Peter Nilles, Horava, Horava, Horava, Hull, Ibanez, Jungman, Kawamura, Lalak, Lalak, Lalak, Lalak, Lauer, Lukas, Meissner, Mirabelli, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Nilles, Scherk, Soni, Stieberger, Veneziano, Witten, Witten, Witten, Witten, Witten   +59 more
core   +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

Model for second harmonic ECRH plasma start-up in stellarators

Nuclear Fusion
Plasma ionisation avalanche under constant electric field is well described by classical theory. It is the standard tokamak start-up method. In this work, we investigate an analogous avalanche process driven by electron cyclotron resonance (ECR). This is
C. Albert Johansson, Pavel Aleynikov, Alvaro Cappa, the W7-X Team   +3 more
doaj   +1 more source

Numerical simulation of vortex breakdown by the vortex-filament method [PDF]

The vortex filament method was applied to the simulation of vortex breakdown. The principal vortex region was represented by multiple filaments, and an axial velocity component was induced by a spiral winding of the filaments.
Leonard, A., Nakamura, Y., Spalart, P. R.   +2 more
core   +1 more source

Role of vertex corrections in the $T$-linear resistivity at the Kondo breakdown quantum critical point

, 2011
The Kondo breakdown scenario has been claimed to allow the $T$-linear resistivity in the vicinity of the Kondo breakdown quantum critical point, two cornerstones of which are the dynamical exponent $z = 3$ quantum criticality for hybridization ...
Kim, Ki-Seok
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Length dependence of current-induced breakdown in carbon nanofiber interconnects [PDF]

, 2008
Current-induced breakdown is investigated for carbon nanofibers (CNF) for potential interconnect applications. The measured maximum current density in the suspended CNF is inversely proportional to the nanofiber length and is independent of diameter ...
Fabris, Drazen, Jameson, John R., Kitsuki, Hirohiko, Suzuki, Makoto, Wilhite, Patrick, Yamada, Toshishige, Yang, Cary Y.   +6 more
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