On α0-products and α2-products

Comparative studies of three types of products (remanufacturing, refurbished and new products) on warranty cost and profitability

Employing remanufactured and refurbished products are among the new strategies that companies used to raise their profits as well as protects environment. Although used product equipment gives an opportunity to purchase latest technology, customers are doubtful about quality and reliability of these products. Because of limitation that developing countries faces in buying new products, some cou...

Packing and Domination Invariants on Cartesian Products and Direct Products

The dual notions of domination and packing in finite simple graphs were first extensively explored by Meir and Moon in [15]. Most of the lower bounds for the domination number of a nontrivial Cartesian product involve the 2-packing, or closed neighborhood packing, number of the factors. In addition, the domination number of any graph is at least as large as its 2-packing number, and the invaria...

Hyperimmunes Plasma Procurement and Products

On Kronecker products, tensor products and matrix differential calculus

The algebra of the Kronecker products of matrices is recapitulated using a notation that reveals the tensor structures of the matrices. It is claimed that many of the difficulties that are encountered in working with the algebra can be alleviated by paying close attention to the indices that are concealed beneath the conventional matrix notation. The vectorisation operations and the commutation...

Biotechnology for porcine products and its effect on meat products

Recombinant DNA technology has provided a mechanism for large scale production of somatotropin (growth hormone). There is no question that exogenous administration of somatotropin (ST) to pigs significantly improves efficiency of growth and carcass composition. Microinjecting foreign DNA into the pronucleus of fertilized ova is the predominant method employed to produce transgenic animals. The ...