Pretraživanje
Prikaz rezultata 1-10 od 372
Nonlinear transformation of electromagnetic wave in time-varying plasma medium: Longitudinal propagation
(Amer Inst Physics, Melville, 2006)
The nonlinear transformation of a linearly polarized source plane electromagnetic wave, propagating along an external static magnetic field in free space for t lt 0, due to the sudden creation of homogeneous plasma at ...
Efficient helium cooling methods for nuclear fusion devices: Status and prospects
(Elsevier Science Sa, Lausanne, 2009)
Helium-cooled reactors offer several important advantages as the helium is an inert and neutron transparent gas. compatible with high outlet temperatures and all structural and functional materials considered for plasma ...
Measurement and interpretation of swarm parameters and their application in plasma modelling
(IOP Publishing Ltd, Bristol, 2009)
In this review paper, we discuss the current status of the physics of charged particle swarms, mainly electrons, having plasma modelling in mind. The measurements of the swarm coefficients and the availability of the data ...
Effect of thixocasting and heat treatment on the tribological properties of hypoeutectic Al-Si alloy
(Elsevier Science Sa, Lausanne, 2008)
This paper presents results of structural, mechanical and tribological tests of thixocast hypoeutectic Al-Si alloy A356 (EN AlSi7Mg0.3). The pin-on-disc tribometer was used to carry out tribological tests under dry sliding ...
Prediction of automotive friction material characteristics using artificial neural networks-cold performance
(Elsevier Science Sa, Lausanne, 2006)
In this study, an artificial neural network technique was used to predict the cold performance of the automotive friction material. Cold performance was predicted for two cases: (i) before and (ii) after fading and recovery ...
Neural network prediction of disc brake performance
(Elsevier Sci Ltd, Oxford, 2009)
An automotive brake's performance results from the complex interrelated phenomena occurring at the contact of the friction pair. These complex braking phenomena are mostly affected by the tribochemical properties of the ...
Microstructural and tribological properties of A356 Al-Si alloy reinforced with Al2O3 particles
(Springer/Plenum Publishers, New York, 2008)
In the present study, the effect of the Al2O3 particles (average size of 12 mu m, 3 and 10 wt.%) reinforcement on the microstructure and tribological properties of Al-Si alloy (A356) was investigated. Composites were ...
Context sensitive recognition of abrupt changes in cutting process
(Pergamon-Elsevier Science Ltd, Oxford, 2010)
This paper presents a new generic approach to real-time monitoring of abrupt changes in cutting process. Proposed method is based on hierarchical fuzzy clustering of patterns obtained from discrete wavelet transform (DWT) ...
Error estimates for Gaussian quadratures of analytic functions
(Elsevier Science Bv, Amsterdam, 2009)
For analytic functions the remainder term of Gaussian quadrature formula and its Kronrod extension can be represented as a contour integral with a complex kernel. We study these kernels on elliptic contours with foci at ...
Prediction of ductile fracture initiation using micromechanical analysis
(Pergamon-Elsevier Science Ltd, Oxford, 2004)
In the paper ductile fracture initiation analysis of low-alloyed ferritic steel has been made by application of two micromechanical models: the Rice-Tracey void growth model and the Gurson-Tvergaard-Needleman (GTN) model. ...