49 documents found, page 1 of 5
Traffic strain analysis provided by an FBG-based monitoring system
Rebelo, Francisco José Pereira; Oliveira, Joel R. M.; Silva, Hugo M. R. D.; Oliveira e Sá, JorgeIntegrating new technologies in civil engineering has gained more space, particularly in pavement engineering. By overcoming some gaps that older strategies present, such as purely visual inspection, and by transforming the roads into a structure connected to network managers that permanently transmits data, it is possible to get a better knowledge and understanding of how pavements evolve. This work presents t...
Material selection for efficient strain transfer in pavement monitoring using F...
Rebelo, Francisco José Pereira; Oliveira, Joel R. M.; Silva, Hugo M. R. D.; Oliveira e Sá, JorgeFibre Bragg Grating (FBG) sensors are increasingly used to monitor road pavement infrastructures due to their sensitivity and resilience. However, challenges such as mechanical vulnerability and effective strain and stress transfer remain critical. This study addresses these challenges by evaluating the effectiveness of four distinct filling materials (bitumen mastic, polymeric resin, polymeric sealant and flex...
Digital transformation: a case study in the context of insurance companies
Oliveira e Sá, Jorge; Kaldeich, Claus; Silva, Maria JoãoDigital Transformation (DT) is considered one of the bases for the creation of new business models and the definition of new strategies in organizations, so, a paradigm shift in the way organizations operate and how they relate to their customers in this digital age. Today it is essential to digitalize the processes inherent to organizations, especially those directly linked to the customer, as they increasingl...
Benchmark of market cloud data warehouse technologies
Oliveira e Sá, Jorge; Renata Gonçalves; Kaldeich, ClausOver the past two decades, the way computing resources are been developed, deployed, upgraded, and applied changed dramatically, with more and more software and hardware solutions being transferred to cloud technologies. Data Warehouses (DW), defined as a way of organizing corporate data in an integrated manner over (sequential) time periods, "structured & disposed" in order to generate a "single data source", ...
Tourist as a smart tourist: a review
Oliveira e Sá, Jorge; Cunha, Ana Margarida RodriguesWe are living in a digital age and people in their day-to-day use a huge number of technologies, implying a volume of information shared on the Internet, with social networks having an important role. This technological growth comes along with the increase in the use of smartphones connected to the Internet. One of the areas in which this sharing of information is relevant is tourism. The comments/actions, cond...
Use of fibre-optic sensors in pavement condition monitoring
Rebelo, Francisco José Pereira; Silva, Hugo M. R. D.; Oliveira, Joel R. M.; Oliveira e Sá, Jorge; Pereira, Paulo A. A.Like any physical structure, roads require preservation, maintenance, and rehabilitation. Furthermore, the structural analysis of a road pavement is a significantly complex operation due to the variability of its subgrade characteristics and the traffic loads. Nowadays, the growing environmental concerns have directed scientific research to new fields, namely the development of techniques that increase the resi...
Installation and use of a pavement monitoring system based on fibre Bragg grati...
Rebelo, Francisco José Pereira; Oliveira, Joel R. M.; Silva, Hugo M. R. D.; Oliveira e Sá, Jorge; Marecos, Vânia; Afonso, JoãoThe evolution of technological tools, namely affordable sensors for data collection, and the growing concerns about maintaining roads in adequate conditions have promoted the development of continuous pavement monitoring systems. This paper presents the installation and use of an innovative pavement monitoring system, which was developed to measure the effects of vehicle loads and temperature on the performance...
A Big Data system architecture to support the monitoring of paved roads
Oliveira e Sá, Jorge; Rebelo, Francisco José Pereira; Silva, Diogo; Teles, Gabriel; Ramos, Diogo; Romeu, JoséToday, everything is connected, including the exchange of data and the generation of new information. As a result, large amounts of data are being collected at an ever-increasing rate and in a variety of forms, a phenomenon now known as Big Data. Recent developments in information and communication technologies are driving the generation of significant amounts of data from multiple sources, namely sensors. In r...
Are health information systems ready for the digital transformation in Portugal...
Teixeira, Leonor; Cardoso, Irene; Oliveira e Sá, Jorge; Madeira, FilipePurpose: This study aimed to reflect on the challenges of Health Information Systems in Portugal at a time when technologies enable the creation of new approaches and models for care provision, as well as to identify scenarios that may characterize this practice in the future. Design/methodology/approach: A guiding research model was created based on an empirical study that was conducted using a qualitative met...
Towards a universal and interoperable scientific data model
Oliveira, João; Gomes, Diogo; Santana, Francisca; Oliveira e Sá, Jorge; Portela, FilipeThe growing number of researchers in Portugal has intensified the appearance of several scientific platforms that allow the indexation of publications and the management of scientific profiles. The diversity and high number of platforms brings problems at the level of crossover and integrity of the information, i.e., the researchers’ profiles are rarely updated, and their data are not properly grouped and cross...