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Our work covers the technical and quality aspects of a spinning mills product; that is a final wound package. We studied various yarn faults that are to be cleared at the stage of package formation and the package abnormalities encountered during and after the winding process. The causes of these faults are examined and their remedies are discussed in order to get a better quality wound package. On the other hand a range of new technological developments in this regard were also covered. The spinner has to take into account the quality and specifications of the product that are ...

This book revisits the well-known problem of diffusion and reaction in a catalyst slab in which a single reaction is taking place under steady state and isothermal condition. The model equation of second order nonlinear ordinary differential equation, has been developed by applying the material balance over the reactant species. The model equation has been numerically solved with the help of MATHEMATICA for different reaction order and kinetics to not only obtain the concentration profile of reactant inside the catalyst pellet but also the effectiveness factor, which plays an important role...