CISeD - Artigo em ata de evento científico internacional
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- Intelligent Electric Vehicle Charging ControllerPublication . Gonçalves Cardoso, Filipe; Rosado, J.; Silva, Marco; Teixeira, C. J. Coelho; Agreira, C. I. Faustino; Caldeira, Filipe; Baptista, Pedro; Barreto, Francisco; Pereirinha, Paulo G.Abstract—For domestic consumers, electricity tariffs usually have two components: one is related to the maximum available current/total power (billed in C/day) and the other concerns to the energy consumption (C/kWh). The main switchboard current is usually limited, according to the contracted power level, by way of automatic switches. To avoid main switchboard tripping by current limit violation, Electric Vehicle (EV) owners may decide to increase their contracted power (and the energy bill) or to adopt charging strategies that limit the global consumption (EV plus house needs) to the contracted current/power. In this paper, an Intelligent Electric Vehicle Charging Controller (IEVCC), allowing to use the contracted power to the maximum extent, is presented. A set of user configurable parameters can be used to define the controller behavior, in order to prevent a full switch-off. Two versions are described: a single user version that can be used at private houses and a mesh version that can be used in multi apartment buildings, providing information about consumed energy, time of use, costs and past bills.
- What makes a memorable food tour experience? Insights from the rome food tour sunsetPublication . Amaro, Suzanne; Duque, Ana SofiaProviding a memorable tourism experience is a leading concern for tourism businesses worldwide. Therefore, it is crucial to examine what makes an experience memorable. Given the scarce literature concerning food tours, this study aims to identify the main components of a memorable food tour experience. A total of 111 online reviews of the best food city and food tour in the World - the Rome Food Tour Sunset - was collected. Findings reveal seven critical components of tourists’ memorable food tour experience: The tour guide, the taste (food and wine), the guide, the quality of the food and wine, the socialization with the group, the learning component, entertainment (fun), the quantity of the food and wine and being offbeat. The results are essential for food tour businesses to offer a memorable food tour experience.
- A Importância Da Soldadura De Termoplásticos: Um Estudo De Comparação De Processos Com Caraterísticas DistintasPublication . Trindade, Adelino; Guimarães, AndréTrês dos processos de soldadura mais utilizados na ligação de termoplásticos modernos foram analisados e comparados neste trabalho, concretamente a soldadura por gás quente (HGW), a soldadura por raio laser (LBW) e a soldadura por fricção (FSW). Os processos referidos foram utilizados na soldadura de vários materiais termoplásticos distintos, dando foco em apenas três desses materiais, tais como: polipropileno (PP), polietileno (PE) e policloreto de vinil (PVC). A qualidade obtida nas diferentes soldaduras foi avaliada recorrendo a uma análise visual, bem como através de ensaios de resistencia a tracção. Foram também realizados ensaios de dureza de Vickers ás juntas soldadas, que revelaram algumas alterações microestruturais. O estudo efetuado teve como finalidade melhorar o conhecimento dos mecanismos envolvidos na execução dos processos de soldadura utilizados e na análise da resistência das juntas soldadas.
- Contribution of wine tourism by the implementation of an urban vineyard in a Portuguese Historic Hotel: Challenges, perspectives, and impactsPublication . Jordão, António; Barroco, Cristina; Gonçalves, TiagoWine tourism is essentially tourism in rural areas linked to wine and vineyards. However, the dissemination of viticultural heritage and wine culture with the aim of contributing to a greater connection between tourists and wine sector, even in urban environments, is an option that has been increasing in some countries. In fact, wine tourism involves a wide ecosystem of actors, which can include the hotels located in the center of the cities. In addition, inside of some cities, it could be possible for some hotels to implement small-scales vineyards. These places could represent an agricultural, historical, and cultural heritage with enormous value which could also be used for tourist purposes. Thus, the main goal of this work is to present the experience and the technical challenges during the implementation of an urban vineyard in a Portuguese Historic Hotel located in the center of the city of Viseu. In addition, the activities related with wine tourism centered on the urban vineyard are shown. The strategy for the recovery of green spaces and the hotel's communication policy are also presented and discussed.
- Industry 4.0 - Assessment of Digital Readiness of Manufacturing Companies in PortugalPublication . Guimarães, André; Reis, Pedro; Charrua-Santos, FernandoThe Portuguese industrial culture is going through some challenges and difficulties in the new phase of digitalization, using the development of several technologies that provide digital solutions aligned with Industry 4.0 (I4.0). To evaluate the digital readiness for I4.0 of industries companies, namely small, medium and large companies, a IMPULS model was used, which allowed quantifying and qualifying their level of readiness to implement I4.0 technologies, considering different dimensions and subdimensions. It is found that not all companies have the same pace and facility in adopting and implementing these technologies, where business strategies are not integrated with I4.0, resulting in the absence of an accurate selfassessment on the real maturity level achieved. Therefore, it is of great importance to understand how companies are facing different challenges and difficulties in the digital transition. This work aimed to assess the level of digital readiness to I4.0 of manufacturing companies in Portugal, in global and dimensional terms for each region. The overall assessment level is low (beginner) and the Smart Infrastructure and Data-driven Services dimensions are weak (outsider).
- Uma Análise Bibliométrica referente à Indústria e aos Modelos de Avaliação do Nível de Maturidade Digital da PMEsPublication . Guimarães, André; Reis, Pedro; Charrua-Santos, FernandoO presente estudo, através do uso de técnicas bibliométricas, teve como principal intuito contribuir para a estruturação e análise da literatura científica disponível no campo da investigação relativa a Modelos de Avaliação de Maturidade Digital à Indústria 4.0 das pequenas e médias empresas (PMEs). Apesar da transformação digital não ser um fenómeno recente, este conceito continua pertinente e atual, afetando as empresas de pequena e média dimensão e constituindo assim uma oportunidade da sua integração na economia mundial. Neste estudo, realizou-se uma revisão exaustiva da literatura científica, tendo sido efetuada uma análise bibliométrica no que concerne à literatura sobre esta temática. Foram avaliadas as principais tendências de pesquisa e identificados os dez artigos mais relevantes, relativamente ao número de citações e publicações, bem como os autores mais citados, contribuindo com uma maior clareza do nível de desenvolvimento das PMEs, na integração e preparação para o novo paradigma da Indústria 4.0.
- Enhancing Organizational Data Integrity and Efficiency through Effective Data LineagePublication . Silva, Carlos; Abbasi, Maryam; Martins, Pedro; Silva, José; ANTUNES VAZ, PAULO JOAQUIM; Mota, DavidIn the era of exponential data growth and the growing reliance of organizations on data-driven decision-making, understanding the origin, transformation, processing, and destination of data has become crucial. Unfortunately, data arriving at organizations is often incorrect or structured differently, leading to analytical errors and compromising data integrity. Without well-documented data mapping and lineage, organizations risk making strategic decisions based on flawed or inaccurate data. Consequently, the implementation of a robust Data Lineage solution has emerged as a vital component for organizational success. Such a solution not only enables error identification, but also facilitates cost reduction by pinpointing inefficient data processing points and driving efficiency improvements. However, finding the right Data Lineage solution tailored to an organization’s specific requirements remains a challenge. Therefore, it is imperative to select and implement a suitable solution that aligns with each organization’s needs.
- Performance Comparison of Redis, Memcached, MySQL, and PostgreSQL: A Study on Key-Value and Relational DatabasesPublication . Almeida, Dany; Lopes, Maria; Saraiva, Luzia; Abbasi, Maryam; Martins, Pedro; Silva, José; ANTUNES VAZ, PAULO JOAQUIMThis paper investigates and compares the performance of relational databases (MySQL and PostgreSQL) and key-value databases (Memcached and Redis) under various test loads. The study utilizes the Yahoo! Cloud Serving Benchmark to simulate diverse workloads and measure the behavior of these databases in different scenarios. The primary focus is on evaluating run time, throughput, and average latency metrics to understand how each database type handles varying thread levels and workload intensity. The outcomes of this research provide valuable insights into the scalability and efficiency aspects of relational databases. By conducting a comprehensive performance comparison, the study aims to assist database designers and developers in selecting the most suitable database option based on specific requirements. The findings contribute to informed decision-making regarding the choice between key-value and relational databases in various data storage scenarios.
- Perception of the image of thermal spas in PortugalPublication . Teixeira, Francisca; Fassarela, Ana; Sousa, Alda; Costa, João Pedro; Antunes, JoaquimThe image of destinations is of great importance in the process of developing tourism for a location, acting not only as a way of differentiating itself from its potential competitors, but, mainly, as an attempt to provide economic support for the sustainable development of the destination (Chagas, 2009). The spa sector in Portugal assumes a growing importance in regions with low population density, where most of the resorts are located, as it is sometimes the main employer in the region (Hofer, et al. 2012; Costa & Antunes, 2022). Thus, the main objective of this study is to evaluate the determinants of the image of a thermal destination in Portugal, in order to improve or (re)position the image of the destination efficiently.
- Health and well-being tourism: analysis of motivational factors through spa experiencesPublication . Ferreira, Jéssica; Carvalho, Cláudia; Antunes, Joaquim; Costa, João; Fonseca, Inês; Fonseca, CátiaThe increase concern about health and disease prevention and the average life expectancy increase, in developed countries, are factors that have played an important role in changing the tourist demand for health and wellness destinations segments of great importance, with a significant impact on the economy and employment in the regions (Ministry of Economy, 2021). Thus, the objective of this work is to study the motivations of tourists who seek thermal spaces, so that the managers of thermal organizations are able to respond to the new demands of the market. Based on the knowledge of the different motivations, spa organizations will be able to adjust their offer to the demand needs.