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With the advent of technology, newer materials are being introduced into the market with superior properties. These materials are extremely tough and are usually categorized as difficult-to-cut materials. Cubic Boron Nitride (CBN) is generally used to machine such materials. But during machining, the cutting tool is subjected to various mechanical, thermal, chemical as well as tribological conditions which are unavoidable. CBN being brittle in...

Crop growth and productivity is limited by a large number of adverse conditions of ambient environment and soil composition. Among these, drought and soil salinity are most prevalent stresses. In view of shrinking land resources and continuing pressures of growing population in most developing countries, it has become imperative that crop yields are not allowed to suffer on any type of cultivable land. Breeding crop varieties resistant to drou...

La Cabala, ossia la sapienza mistica e spirituale contenuta nella Bibbia ebraica, offre insegnamenti profondi, in grado di dare gioia e soddisfazione a tutti coloro che cercano Dio e la verità. Dunque, l'adesione a tale tradizione non si riduce allo studio degli archetipi mistici dell'Antico Testamento, ma implica l'acquisizione di un vero e proprio stile di vita. Questo cofanetto, composto da 22 carte e da un manualetto esplicativo, permette ...

Reservoir characterization requires integration of engineering, geology, and geophysics, with rock physics supplying a key link. In this volume, geophysical methods, especially time-lapse 3D seismic, are emphasized, and a range of enhanced oil-recovery methods (EOR) are discussed, showing the need to accurately describe a reservoir before and after production.