17 documents found, page 1 of 2
Dataset for identifying maintenance needs of home appliances using artificial i...
Fonseca, Tiago; Chaves, Pedro; Ferreira, Luis Lino; Gouveia, Nuno; Costa, David; Oliveira, André; Landeck, JorgeThe ability to predict the maintenance needs of machines is generating increasing interest in a wide range of industries as it contributes to diminishing machine downtime and costs while increasing efficiency when compared to traditional maintenance approaches. Predictive maintenance (PdM) methods, based on state-of-the-art Internet of Things (IoT) systems and Artificial Intelligence (AI) techniques, are heavil...
Heart rate variability and erectile function in younger men: A pilot study
Miguel Costa, Rui; Mangia, Paula; Pestana, José; Costa, DavidErectile dysfunction (ED) in younger men is an increasing concern. In middle aged and older men, ED was related to lower resting heart rate variability (HRV), but research in younger men is lacking. The present study examined, in a nonclinical sample of 105 men between 18 and 39 years, the association of ED with several parameters of resting HRV. Scores of the 5-item version of the International Index of Erecti...
Using AR interfaces to support industrial maintenance procedures
Cachada, Ana; Costa, David; Badikyan, Hasmik; Barbosa, José; Leitão, Paulo; Morais, Osmano; Teixeira, Carlos; Azevedo, João; Moreira, Pedro MiguelIndustries are becoming more and more digitized to better implement intelligent and predictive maintenance support systems, aligned with Industry 4.0, which requires the progressive digitization of data collection and processes. Maintenance interventions, in an evolving technological context, are increasingly more complex and difficult for technicians to perform. In these environments, the use of Augmented Real...
Empowering humans in a cyber-physical production system: human-in-the-loop pers...
Costa, David; Pires, Flávia; Rodrigues, Nelson; Barbosa, José; Igrejas, Getúlio; Leitão, PauloIn the Industry 4.0 context, humans are taking upnew roles in Cyber-Physical Systems (CPS) since it was realizedthat they constitute the most flexible part of an automated system.With this new reality, humans are becoming integral parts ofCPS, entering in the realm of the Human-in-the-Loop of Cyber-Physical Systems (HiLCPS). In this paper, the challenges andtechnologies for the integration of humans in CPS envi...
Honey bees repellent device: preliminary experimental research with the bees he...
Costa, David; Teixeira, João Paulo; Cadavez, VascoBees are insects that attack, to protect the hive, when they feel threatened. The main objective in this paper was to build an electronic device capable of repelling bees. Thus, a study of the hearing thresholds, of honey bees, has been developed to find out the frequencies range are most sensitive. This knowledge can be important to identify a frequency or a sound capable of repealing them. We also present an ...
Um estudo sobre a utilização das tecnologias digitais pelos professores e a sua...
Costa, David; Costa, Fernando AlbuquerqueO trabalho apresentado surge da procura de respostas a inquietações decorrentes da reflexão que temos vindo a fazer sobre o trabalho desenvolvido com professores em contexto de formação contínua e pretende contribuir para uma melhor compreensão das suas práticas e perceções sobre o processo de integração das tecnologias digitais na sua atividade curricular. Em concreto, pretende-se conhecer a utilização que os ...
Do psychosocial factors moderate the relation between testosterone and female s...
Costa, Rui Miguel; Oliveira, Gonçalo A.; Pestana, José António Melo; Costa, David; Oliveira, Rui FilipeObjectives Low sexual desire is a common complaint among women in the reproductive years. There is controversy regarding the relationship between testosterone (T) and female desire, but there is also lack of research on moderators. Lack of awareness of effects of T on emotions and bodily sensations might interfere with the subjective experience of desire. Moreover, T appears to be more important for searching a...
Medida da banda de frequências audível pelas abelhas do mel
Costa, DavidAs abelhas são insetos que, apesar de serem muito pacíficos, atacam quando se sentem ameaçadas para proteger a colmeia. Assim, surgiu a ideia de fazer um estudo sobre a audição das abelhas com o objetivo de encontrar a banda de frequência a que são mais sensíveis. Este conhecimento pode ser importante para identificar uma frequência ou um som capaz de as repelir. Portanto, neste trabalho é apresentado uma série...
Psychometric evaluation of a unified Portuguese-language version of the Body Sh...
Silva, Wanderson Roberto [UNESP]; Costa, David; Pimenta, Filipa; Maroco, Joao; Duarte Bonini Campos, Juliana Alvares [UNESP]Made available in DSpace on 2018-11-26T15:30:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-07-01. Added 1 bitstream(s) on 2019-10-09T18:25:00Z : No. of bitstreams: 1 S0102-311X2016000704001.pdf: 182085 bytes, checksum: 146e6909219986468fe34c877121616c (MD5); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); The objectives of this study were to develop a unified Portuguese-language versi...
Women’s finger pressure sensitivity at rest and recalled body awareness during ...
Costa, Rui Miguel; Pestana, José Antonio Melo; Costa, David; Wittmann, MarcGreater vibrotactile sensitivity has been related to better erectile function in men, and vibrotactile and pressure tactile sensitivity have been related to better sexual function in women. Our previous study found that, for both sexes, greater recalled body awareness during last sexual relation correlated with greater recalled desire and arousal. Using the same sample of that study (68 women and 48 men, recrui...