Results 91 to 100 of about 14,611,742 (406)
Towards numerical simulation of yarn insertion on air-jet weaving looms [PDF]
, 2019 In this research a structural solver and flow solver are coupled to simulate the motion of a nylon yarn as it is launched into the atmosphere by a main nozzle of an air-jet weaving loom. The high-speed air flow, large displacements of the yarn, 3D-nature
Degroote, Joris +2 more
core +1 more source
Dynamics of electron beams in the solar corona plasma with density fluctuations [PDF]
, 2001 The problem of beam propagation in a plasma with small scale and low intensity inhomogeneities is investigated. It is shown that the electron beam propagates in a plasma as a beam-plasma structure and is a source of Langmuir waves.
Benz +32 more
core +2 more sources
Coherent structures in an electron beam
, 2004 The formation and evolution of coherent structures in a low-energy electron beam produced in a Malmberg-Penning trap is investigated by means of CCD diagnostics. The electrons are emitted from a thermionic cathode and their energy is controlled by an acceleration grid.
Illiberi, Andrea +6 more
openaire +3 more sources
Generalized Bessel beams with two indices [PDF]
, 2014 We report on a new class of exact solutions of the scalar Helmholtz equation obtained by carefully engineering the form of the angular spectrum of a Bessel beam. We consider in particular the case in which the angular spectrum of such generalized beams has, in the paraxial zone, the same radial structure as Laguerre-Gaussian beams.
arxiv +1 more source
Static analysis of transmission tower beam structure
, 2018 The main topic of this paper is a static analysis of transmission tower beam structure fixed to the earth. It contains facts necessary for a need to create and apply tower beam structures.
L. Jakubovičová +2 more
semanticscholar +1 more source
Advances in Civil Engineering, 2021 The ABAQUS finite-element analysis platform was used to understand the mechanical behavior of concrete-filled steel tube reinforced concrete (CFSTRC) columns and steel reinforced concrete (SRC) beam plane frames under fire conditions.
Yanhong Bao, Bowen Chen, Lei Xu
doaj +1 more source
Experimental observation of a strong mean flow induced by internal gravity waves [PDF]
, 2012 We report the experimental observation of a robust horizontal mean flow induced by internal gravity waves. A wave beam is forced at the lateral boundary of a tank filled with a linearly stratified fluid initially at rest.
Bordes, Guilhem +4 more
core +4 more sources
On the homogenization of periodic beam-like structures
Procedia Structural Integrity, 2018 Abstract A homogenization method for periodic beam-like structures that is based on the unit cell force transmission modes is presented. Its main advantage is that to identify the principal vectors of the state transfer matrix corresponding to the transmission modes it operates directly on the sub-partitions of the unit cell stiffness matrix and ...
Penta F. +4 more
openaire +3 more sources
Early out-of-equilibrium beam-plasma evolution
, 2006 We solve analytically the out-of-equilibrium initial stage that follows the injection of a radially finite electron beam into a plasma at rest and test it against particle-in-cell simulations.
A. F. Lifschitz +5 more
core +1 more source
High-gradient two-beam accelerator structure
Physical Review Special Topics. Accelerators and Beams, 2010 A novel cavity structure is described that could be the basis for a two-beam, high-gradient, accelerator. Versions of the structure could be used for acceleration of beams of electrons, positrons, muons, protons, or heavier ions; with either electron or ...
S. Yu Kazakov +3 more
doaj +1 more source