Abstract Due to space availability limitations and high land costs, there is an increasing development of multi-floor manufacturing (MFM) systems in urban industrial areas. The problem coordination a process, the Ramadge Wonham framework, introduced. chain each floor elevator system are modeled form finite deterministic automata. models process parametric with respect number floors machines on ...

To improve the overall efficiency, from a supply chain perspective, manufactures are focusing their activities around a limited number of coreprocesses. Consequently the internal processing degree is reduced. When the degree of internal processing is reduced, the organizational balance between manufacturing processes and cross-organizational integration processes shifts, and this is reflected i...

High Performance Manufacturing (HPM) technology comprises new developments to reduce primary process times and lead times significantly by the means of enhanced cutting abilities, adapted tooling and machine concepts combined with integrated examination and optimization of the process chain. The overall objective of High Performance Manufacturing is to increase efficiency and quality of product...

— The Internet of Things (IoT) has transformed many aspects of modern manufacturing, from design to production to quality control. In particular, IoT and digital manufacturing technologies have substantially accelerated product development cycles and manufacturers can now create products of a complexity and precision not heretofore possible. New threats to supply chain security have arisen from...

In this paper we use duality theory to associate certain measures to fully-nonlinear elliptic equations. These measures are the natural extension of the Mather measures to controlled stochastic processes and associated second-order elliptic equations. We apply these ideas to prove new a-priori estimates for smooth solutions of fully nonlinear elliptic equations. Supported in part by FCT/POCTI/F...

In this paper we present an upper bound for the decay of correlation for the stationary stochastic process associated with the Entropy Penalized Method. Let L(x, v) : T × R → R be a C Lagrangian of the form L(x, v) = 1 2 |v| 2 − U(x) + 〈P, v〉. We point out that we do not assume more differentiability of L according the the dimension of the torus T. 1. Definitions and the set up of the problem L...

Composting of two different types of sludge from the recycled paper manufacturing industry was carried out at laboratory scale. Physico-chemical sludge (PCS) from the de-inking process and biological sludge (BS) from the wastewater treatment plant were composted and co-composted with and without addition of a bulking material. Despite its poor initial characteristics (relatively high C/N ratio,...

Purpose – Since lean manufacturing considers that “Inventory is evil”, the purpose of this paper is to find and quantify the relations between work-in-process inventory (WIP), manufacturing lead time (LT) and the operational variables they depend upon. Such relations provide guidelines and performance indicators in process management. Design/methodology/approach – The authors develop equations ...

This chapter presents the rapid prototyping and manufacturing concepts applied as means to reducing time between jewellery designs and manufacturing process. Different processes on jewellery modelling production are presented. Nowadays, the use of technologies as CAD/CAM Computer Aided Design and Manufacturing in high production companies are very disseminated. However, the implementation of th...