In this paper, we consider a multi-server queuing system in which additional servers are allowed for a longer queue to reduce the customer’s balking and reneging behavior. The customers are assumed to arrive in Poisson fashion and their service- times follow exponential distribution. The number of servers in long run depends on the queue-length. We obtain equilibrium queue size distribution. Th...

Asymmetric rolling (ASR) is a method to manufacture sheet metals with the aim of improving material performance. The objective present work investigate effect asymmetric on an aluminum alloy used in automotive industry. To this end, three parameters process were studied, namely asymmetry factor (1, symmetric (SR) and 1.36, (AR)), thickness reduction per pass (10%, 15%, 30%), routes (asymmetric ...

The paper reviews explanations about presidential term interruptions in Latin America and applies them to the 2010s cases, which are: Fernando Lugo (Paraguay, 2012); Otto Pérez Molina (Guatemala, 2015); Dilma Rousseff (Brazil, 2016); Pedro Pablo Kuczynski (Peru, 2018); Evo Morales (Bolivia, 2019). study sample also includes Legislative decisions discontinue processes against presidents of Guate...

The forming limit diagrams (FLDs) characterizing the formability of sheet metals are usually obtained by applying proportional loadings. Nevertheless, industrial processes involve strain path changes that can modify limit-strain values. In addition, for strongly anisotropic such as Zn-Cu-Ti zinc alloy, large differences in curves (FLCs) with respect to rolling direction observed. present work, ...

The object of the investigation is to study reducible $M$-ideals in Banach spaces. It is shown that if the number of $M$-ideals in a Banach space $X$ is $n(<infty)$, then the number of reducible $M$-ideals does not exceed of $frac{(n-2)(n-3)}{2}$. Moreover, given a compact metric space $X$, we obtain a general form of a reducible $M$-ideal in the space $C(X)$ of continuous functions on $X$. The...