Results 31 to 40 of about 4,286 (293)

Stochastic Modeling of Intermittent Scrape-Off Layer Plasma Fluctuations [PDF]

Physical Review Letters, 2012
11 pages, 1 ...
openaire   +4 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Experimental observations of bifurcated power decay lengths in the near Scrape-Off Layer of ST40 High Field Spherical Tokamak

Nuclear Materials and Energy
The scrape-off layer parallel heat flux decay lengths measured at ST40, a high field, low aspect ratio spherical tokamak, have been observed to bifurcate into two groups.
X. Zhang, C. Marsden, M. Moscheni, E.N.J. Maartensson, A. Rengle, M. Robinson, T. O’Gorman, H.F. Lowe, E. Vekshina, S. Janhunen, A. Scarabosio, P.F. Buxton, M. Sertoli, M. Romanelli, S.A.M. McNamara, T.K. Gray, N.A. Lopez   +16 more
doaj   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Numerical analysis of the impact of an RF sheath on the Scrape-Off Layer in 2D and 3D turbulence simulations

Nuclear Materials and Energy, 2017
Motivated by Radio Frequency (RF) heating studies, the response of the plasma of tokamaks to the presence of a locally polarized limiter is studied. In a first part, we use the TOKAM3X3D global edge turbulence code to analyse the impact of such biasing ...
P. Tamain, C. Colin, L. Colas, C. Baudoin, G. Ciraolo, R. Futtersack, D. Galassi, Ph Ghendrih, N. Nace, F. Schwander, E. Serre   +10 more
doaj   +1 more source

Computations of Intermittent Transport in Scrape-Off Layer Plasmas [PDF]

Physical Review Letters, 2004
Two-dimensional fluid simulations of interchange turbulence for geometry and parameters relevant for the scrape-off layer of magnetized plasmas are presented. The computations, which have distinct plasma production and loss regions, reveal bursty ejection of particles and heat from the bulk plasma in the form of blobs.
O E, Garcia, V, Naulin, A H, Nielsen, J Juul, Rasmussen   +3 more
openaire   +2 more sources

Inflammatory Response‐Inspired Thermochromic Shield for Pneumatic Structures

Advanced Engineering Materials, EarlyView.
A thermochromic shield for pneumatic structures is developed, using anhydrous sodium acetate powder and thermochromic pigment‐included solution. In this shield composed of three layers, the exothermic and thermochromic reactions, followed by the mixture of both components, occur promptly with an incident of penetrating damage as a sign of initial ...
Hyun Jae Lee, Ryuma Niiyama
wiley   +1 more source

Turbulence and transport in spectrally accelerated full-f gyrokinetic simulations

Nuclear Fusion
We investigate edge and scrape-off layer (SOL) turbulence and transport using the spectrally accelerated full- f gyrokinetic (GK) code GENE-X , recently introduced in Frei et al (2025 Comput. Phys. Commun. 316 109817).
B.J. Frei, P. Ulbl, C. Pitzal, W. Zholobenko, F. Jenko   +4 more
doaj   +1 more source

Analysis of high-field side plasma instabilities in tokamak edge

Nuclear Materials and Energy
Balanced double-null configurations are of general interest for boundary plasma physics, and they have been proposed for some future designs. Experimental observations demonstrate absence of plasma fluctuations in tokamak high-field side scrape-off layer
M.V. Umansky
doaj   +1 more source