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Materials Engineering and Metallurgy
This lecture note covers all the essential issues that need to be understood by an engineer concerning the interplay between materials, structure, and properties. Issues such as metallurgy, crystal physics, and Neumann's symmetry principle are dealt with in detail. Equilibrium thermodynamics, neutron diffraction, and spectroscopy are also touched on, with all discussions on the major classes of materials and the emerging field of nanostructured materials. Focusing on practical applications, it also takes into discussion the most recent concepts, like Moore's Law and their implications to materials engineering. Dedicated to the students and professionals in engineering, this note establishes a scientific basis in choosing and performing the materials.
Author(s): Renu Kumari, Avala Lava Kumar and Dr. Sushant Kumar BadJena
94 Pages 
The Principles of Leather Manufacture by H. R. Procter
The famous reference source H. R. Procter, The Principles of Leather Manufacture, explores chemistry and the processes undertaken in the manufacture of leather. Starting with a general overview relating to the historical background and introduction concepts in leather manufacture, it points to where the role of the living cell plays, the causative agents for putrefaction, and also to antiseptics and disinfectants. It also covers the chemical content of hides, the structure and growth of skin, and the chemical processes by which it gets tanned - alum, chrome, and vegetable tanning. The book also goes into the matter of physical chemistry of the fibers of hides and water treatment in tanneries and methods for depilation, deliming, and bating. The book is very valuable for any readers interested in the chemical processes involved in leathering, giving both theoretical knowledge and some practical insight into the tanning industry.
Author(s): H. R. Procter
NA Pages
Lecture note on earth material: Fundamentals of earth materials, strategic minerals, metals, and their geochemical importance and significance Earth materials-Atoms and elements, elements and their formation in the universe, cosmochemistry Chemical bonds that characterize Earth materials with symmetry, lattices, point groups, and space groups. It further discusses metamorphic petrology, which is rich in dealing with the processes and transformations that occur in Earth's crust. The resource is also important to students of geology, mineralogy, and other related courses for it provides an overview of the material composition and structure of the Earth.
Author(s): NA
104 Pages