Studying LiFePO-=SUB=-4-=/SUB=- powder samples via X-ray diffraction techniques using artificial neural networks

X-Ray Powder Diffraction Metrics

To compare sample data from x-ray diffraction a suitable metric is developed to evaluate the similarity (or dissimilarity) between samples and to compare it to a references. The methodology focuses on the d-lines and uses the intensity measurements indirectly in the algorithm. The resulting d-line distribution and summary statistics of the differences is used to establish whether a true differe...

Binaural sub-band adaptive speech enhancement using artificial neural networks

© Speech Communication, Vol.25, Elsevier Science B.V., Amsterdam, The Netherlands, pp.177-186, 1998 3 In this paper, a general class of “single-hidden layered, feedforward” Artificial Neural Network (ANN) based adaptive non-linear filters is proposed for processing band-limited signals in a multimicrophone sub-band adaptive speech-enhancement scheme. Initial comparative results achieved in simu...

Calculated Powder X-ray Diffraction Line Profiles via Absorption

We have calculated powder X-ray diffraction (PXRD) line profiles based on the absorption of X-rays in passing through materials. The results showed that the line profile function depends on the absorption coefficient of the sample. The observed aluminum PXRD patterns are in excellent agreement with the calculated line profile functions derived from absorption. This work also demonstrated that b...

Quantitative phase analysis of clay minerals by X-ray powder diffraction using artificial neural networks. I. Feasibility study with calculated powder patterns

An artificial neural network is a densely interconnected array of simple processing elements (referred to as neurons herein) arranged in an input layer, an output layer, and (usually) one or more 'hidden layers' that have neither direct inputs from outside the network nor direct outputs beyond the network, all designed to simulate the learning and recall functions of analogous structures in the...

Two-dimensional X-ray powder diffraction