6 documents found, page 1 of 1
Preface
Almeida, João P.; Geraldes, Carla A.S.; Lopes, Cristina; Moniz, Samuel; Oliveira, José F.; Pinto, Alberto A.The XXI Congress of APDIO, the Portuguese Operational Research Society, took place on 7 and 8 November 2021, with more than 120 registered participants and around 80 papers submitted. This congress took place at a very particular historical moment. After the first waves of the COVID-19 pandemic, which had immobilized humanity, cancelling all gatherings, society was equipped with the first effective weapons agai...
Preface
Almeida, João P.; Relvas, Susana; Oliveira, José F.; Pinto, Alberto A.In 2019, APDIO has organized the twentieth Portuguese national conference of Operational Research (OR)—the IO series. With this long-lasting list of events, success has been the main takeaway from each unique occurrence. With a growing number of members, also with growing enthusiasm, the conference series has reached most regions in themainland country.Recently, the frequency of the conference was increased, wh...
Operational Research IO2017, Valença, Portugal, June 28-30
Vaz, A.I.; Almeida, João P.; Oliveira, José F.; Pinto, Alberto A.This proceedings book presents selected contributions from the XVIII Congress of APDIO (the Portuguese Association of Operational Research) held in Valença on June 28–30, 2017. Prepared by leading Portuguese and international researchers in the field of operations research, it covers a wide range of complex real-world applications of operations research methods using recent theoretical techniques, in order to n...
A container loading algorithm with static mechanical equilibrium stability cons...
Ramos, A. Galrão; Oliveira, José F.; Gonçalves, José F.; Lopes, Manuel PereiraThe Container Loading Problem (CLP) literature has traditionally guaranteed cargo static stability by imposing the full support constraint for the base of the box. Used as a proxy for real-world static stability, this constraint excessively restricts the container space uti- lization and has conditioned the algorithms developed for this problem. In this paper we propose a container loading algorithm with static...
Dynamic stability metrics for the container loading problem
Ramos, A. Galrão; Oliveira, José F.; Gonçalves, José F.; Lopes, Manuel P.The Container Loading Problem (CLP) literature has traditionally evaluated the dynamic stability of cargo by applying two metrics to box arrangements: the mean number of boxes supporting the items excluding those placed directly on the floor (M1) and the percentage of boxes with insufficient lateral support (M2). However, these metrics, that aim to be proxies for cargo stability during transportation, fail to t...
Reel and sheet cutting at a paper mill
Correia, M. Helena; Oliveira, José F.; Ferreira, J. SoeiroThis work describes a real-world industrial problem of production planning and cutting optimization of reels and sheets, occurring at a Portuguese paper mill. It will focus on a particular module of the global problem, which is concerned with the determination of the width combinations of the items involved in the planning process: the main goal consists in satisfying an order set of reels and sheets that must ...