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This book deals with the thermo-mechanics of welding based rapid prototyping process. A numerical and experimental approach for the analysis of temperatures, heat affected zone, deformation and residual stress are presented. Focus is placed on the investigation of the thermomechanical interaction of molten metal with a substrate at room temperature using, initially, a simplified modeling approach limited to single droplet and than increasing the complexity of the model to include factors like material addition, thermal cycling and moving heat source. The single droplet model or two...

Global food security issues are increasing with the passage of time. Stored products are prone to insect pest infestation and a possible insect attack can deteriorate the quality as well as the quantity of attacked commodity resulting in significant decrease in volume, substantial weight loss and reasonable germination damage. Deliberate use of insecticides and fumigants pose environmental and health issues. Natural plant extracts, being rich in natural secondary metabolites, present a safer solution of this problem. Recent study focused on the toxicological, fumigant, repellent and growth...