In order to improve the accuracy of forecasting crude oil prices, a new price method is introduced in paper that combination FNN model and stochastic time effective function—namely, WT-FNN model. The keeps track historical values prices predicts future function gives greater weight recent information smaller old information, thus making prediction more reasonable. We selected daily data Brent f...

W and Cu can be found in separate phases the W-Cu composites since these elements do not dissolve each other neither liquid nor solid phase, but with mechanical alloying it is possible to produce nonequilibrium alloys In this work nanostructured were produced by planetary ball milling. The powder was sintered on 900 °C 950 50 MPa pressure applied. meso- microstructure of samples, investigated S...