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The use of natural fibres as replacement for traditional glass fibers in composites has gained increasing importance in recent years as environmental concerns have led to a quest for sustainable alternatives. However natural fibre composites have generally been found to have limitations in their mechanical properties. This book presents the results of studies undertaken to explore the mechanical properties, especially impact and fatigue, of hemp fibre reinforced polyester composites. The specific tensile properties and impact damage tolerance of hemp fibre composites were found to be low...

In supervised classification of remotely sensed imagery the analysts require a plenty of time for generating the representative signatures of the possible land-cover classes present in the image. Although the notion of picking a large number of input signatures leads to more efficient results but in most of the situations the time is an important factor. To save the lavish time, besides to obtain the reliable results, is the requirement of most of the analysts. In this study the results of supervised classification are used as reference for checking the reliability of the results obtained...