Abstract The abundant use of cutting fluids in surface grinding process and the corresponding costs energy consumption have been a major sustainability concern. This paper identified optimum depth cut for under controlled parameters using compressed air cooling technique dry cutting. morphology subsurface defects workpiece material (AISI 304 stainless steel) were measured compared. It was obser...

Volume 1, The Earth system: physical and chemical dimensions of global environmental change, pp 514–516

In this paper, a simple, non-sensitive, robust, and accurate computational procedure is presented and it does not require a prior knowledge of a reference trajectory for computing the optimum trajectory for minimum-time-toclimb to a prescribed final altitude of a supersonic aircraft. From the program, we fnst generate the possible range of initial Mach numbers, initial altitudes and climb times...

In this paper we give the optimum parameters for the Accelerated Overrelaxation (AOR) method in the special case where the matrix coefficient of the linear system, which is solved, is consistently ordered with nonvanishing diagonal elements. Under certain assumptions, concerning the eigenvalues of the corresponding Jacobi matrix, it is shown that the optimum AOR method gives better convergence ...

A method for finding an optimum n-dimensional commutative group code of a given order M is presented. The approach explores the structure of lattices related to these codes and provides a significant reduction in the number of non-isometric cases to be analyzed. The classical factorization of matrices into Hermite and Smith normal forms and also basis reduction of lattices are used to character...

In this paper we solve the following problem: Given a positive integer f and L weights (real numbers), nd a partition with f classes of the multiset of weights such that the sum of the costs of the optimum m-ary Hu man trees built for every class of is minimum. An application to the optimal extendibility problem for pre x codes is proposed.

finding the optimum overrelaxation parameter o¡¡, is an important and often a difficult part of the problem [1, p. 257]. When A is a 2-cyclic, consistently ordered, real symmetric, positive-definite matrix (this will be assumed in the rest of the paper), only the spectral radius p(£i) of the associated Gauss-Seidel iteration matrix £i is needed to determine the optimum parameter co¡, [2, p. 109...