Results 131 to 140 of about 40,420 (297)

Wall conditioning studies and plasma-facing materials qualification for magnetically confined fusion experiments [PDF]

open access: yes, 2015
In the framework of magnetically confined fusion plasmas, achieving a comprehensive understanding of Plasma-Wall Interaction (PWI) is fundamental to attain the improved confinement regimes, needed to produce fusion energy.
RAIS, Bilel
core  

Boron powder injection experiments in WEST with a fully actively cooled, ITER grade, tungsten divertor

open access: yesNuclear Materials and Energy
Reactor relevant fusion devices will use tungsten (W) for their plasma facing components (PFCs) due to its thermomechanical properties and low tritium retention.
K. Afonin   +22 more
doaj   +1 more source

Active Earth Thrust on Cantilever Walls in General Conditions

open access: yesSoils and Foundations, 1999
The methods of Coulomb and Rankine are still the most widely used to compute earth active thrusts on walls. The former is prevalently used for gravity walls, the latter for cantilever walls. In contrast to Coulomb's method, which can be used in a wide range of conditions, Rankine's method has a very limited applicability and does not permit the ...
openaire   +3 more sources

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

open access: yesAdvanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann   +2 more
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

First-wall conditioning for enhanced confinement discharges and the DT experiments in TFTR [PDF]

open access: yes, 1988
The conditioning techniques applied to the TFTR first-wall configuration that will be in place for the DT experiments in 1990--1991 are reviewed. Of primary interest is the helium conditioning procedure that was developed to control hydrogenic recycling ...
Bell, M. G.   +12 more
core  

Granular systems on a vibrating wall: The kinetic boundary condition

open access: yesPhysical Review E, 2004
Dense granular media, fluidized by a vibrating wall, is studied in the high-vibrating frequency limit, where the plate vibration frequency is much greater than the collision frequency, and the plate acceleration is much greater than gravity. Using kinetic theory, it is shown that, regardless of the fluid density, external field, or restitution ...
openaire   +6 more sources

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Enhanced performance discharges in the DIII-D tokamak with lighium wall conditioning [PDF]

open access: yes, 1996
Lithium wall conditioning has been used in a recent campaign evaluating high performance negative central shear (NCS) discharges. During this campaign, the highest values of stored energy (4.4 MJ), neutron rate (2.4 x 10{sup 16}/s), and nT{sub i}{tau} (7
Lazarus, E. A.   +3 more
core  

Ion cyclotron wall conditioning experiments on Tore Supra in presence of the toroidal magnetic field

open access: yes, 2009
Wall conditioning techniques applicable in the presence of the high toroidal magnetic field will be required for the operation of ITER for tritium removal, isotopic ratio control and recovery to normal operation after disruptions.
D. Douai   +21 more
core   +1 more source

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