Luísa Morgado

• Docente at Polytechnic Institute of Porto

This work was developed into a corrugated cardboard industrial company. In this sector are produced plans resulting from the union between corrugated cardboard produced and the sheets printed in the previous sector. The PDCA cycle was the main methodology used in this work. Firstly, the initial state of the production was analyzed by data collectio...

The main purpose of this article is to depict the integration of Lean tools with requirements of ISO 9001:2015 standard as an operationalisation and support tool for a Quality Management System (QMS). The research was carried out through a questionnaire, which was sent to 2040 Portuguese companies. From the two hundred responses, 77 of them were va...

The automotive industry is intolerant of failures, due to the high economic and image costs that this entails. Thus, suppliers will have to develop their own procedures for analyzing component failures, preventing them from reaching the end customer. There are several methodologies linked to Quality for detecting the root causes of problems, but no...

The automotive industry is constantly growing with the continuous creation of new technologies in the components industry, also requiring a greater quality control during their manufacturing process. The scrap data management is fundamental to being able to have a sense of where the main production problems are and when to act on them in order to i...

Vibrational energy harvesters for powering wearable electronics and other electrical energy demanding devices are among the most used approaches. Devices that use magnetic forces to maintain the central mass in magnetic levitation, aligned with several coils as the emf generating transducer mechanism, are becoming a suitable choice since they do no...

Occupational Health and Safety (OHS) is a set of activities to prevent injuries and health problems to workers and to provide safe and healthy workplaces (ISO 14001:2015). According to the International Labor Organization (ILO), more than 2.3 million people lose their lives each year in their professional activities and more than 300 million work-r...

The automotive industry is constantly using continuous improvement to leverage its growth and sustainability. The improvement of the intralogistics of component companies for the automotive industry is based on the same principles. The Milk-Run System (MRS) allows the inbound transportation of the raw materials containers to the production lines, a...

In this work we use tempered fractional advection-diffusion equations to model the dispersive transport in disordered materials. A numerical method is derived to approximate the solution of such differential models and we prove that it is convergent and stable. Two numerical examples are presented. The first one, with known analytical solution, is...

For a class of tempered fractional terminal value problems of the Caputo type, we study the existence and uniqueness of the solution, analyse the continuous dependence on the given data and using a shooting method, we present and discuss three numerical schemes for the numerical approximation of such problems. Some numerical examples are considered...

Bayma-Freire, H., Roazzi, A., Morgado, L., & Machado, T. S. (2016). Abandono escolar no ensino fundamental: Interferência do trabalho extracurricular e nível socioeconómico em crianças pobres brasileiras. Revista EDUCAmazônia, 17(2), 211-230. https://goo.gl/jmvtwN Resumo: Se o séc. XX foi considerado o " século da criança " , reconhecendo e public...

In this paper we introduce a generalized Jacobsthal and Jacobsthal-Lucas polynomials, Jh, n and Jh, n, respectively, that consist on an exten-sion of Jacobsthal’s polynomials Jn(x) and Jacobsthal-Lucas polynomi-als jn(x). We provide their properties and a generalization of the usual identities. We also present, for each one of these generalized pol...

Instrumental neutron activation analysis, atomic absorption spectrometry and conventional methods were used on five USGS Geochemical Exploration Reference Materials: GXR-1, 2, 3, 4 and 6. The concentrations of 35 elements are reported and compared with available literature values. In general the agreement is good.