Artificial Intelligence for the Prediction of Failures In Wind Turbines

With the increase of the global environmental awareness and demand nowadays, the request for renewable energy sources by the companies responsible for distributing the energy itself highly increased as well. The sources, such as wind turbines, are highly exposed to several external factors that can result in mechanical failures on their complex components. These faults lead to multiple consequences due to their failure time: loss of energy production, which means that less renewable energy will be transmitted to the electrical grid and more money will be spent on repairing these components. The content of this thesis consists of an analysis to the implementation of a prediction system allied with a monitoring system. This system will allow failure detection on wind assets, anticipating them and thus reducing maintenance costs and the increase of the longevity of the components. By reducing the number of failures, it will allow companies to increase the profit of the energy production on a long term. With the work that was made, it was implemented an experiment that could be applied to several faults of wind turbines that created machine learning models that reliably predict these faults.Com a crescente preocupação ambiental existente nos dias de hoje, fontes de energia renovável são cada vez mais procuradas pelas empresas de distribuição de energia. Estas fontes, como as turbinas eólicas, são expostas a diversos fatores externos e a falhas mecânicas dos seus complexos componentes. Estas falhas levam a diversas consequências devido ao tempo fora de serviço: perda de produção de energia, levando a que menos energia renovável seja transmitida para a rede elétrica e também maiores custos de reparação. O conteúdo desta tese apresenta uma análise à implementação de um sistema de predição de falhas aliado a um sistema de monitorização. Este sistema irá permitir a deteção de falhas nos ativos eólicos, antecipando as mesmas e assim reduzindo todos os custos de manutenção, aumentando a longevidade dos componentes. A redução das falhas irá permitir à empresa aumentar o lucro derivado da produção de energia a longo prazo. Com o trabalho realizado, foi possível implementar uma experiência que pode ser aplicada às diversas falhas de turbinas eólicas que crie modelos de aprendizagem automática que consigam prever estas mesmas falhas de um modo fiável

Artificial Intelligence for the Prediction of Faillures in Wind Turbines

With the increase of the global environmental awareness and demand nowadays, the request for renewable energy sources by the companies responsible for distributing the energy itself highly increased as well. The sources, such as wind turbines, are highly exposed to several external factors that can result in mechanical failures on their complex components. These faults lead to multiple consequences due to their failure time: loss of energy production, which means that less renewable energy will be transmitted to the electrical grid and more money will be spent on repairing these components. The content of this thesis consists of an analysis to the implementation of a prediction system allied with a monitoring system. This system will allow failure detection on wind assets, anticipating them and thus reducing maintenance costs and the increase of the longevity of the components. By reducing the number of failures, it will allow companies to increase the profit of the energy production on a long term. With the work that was made, it was implemented an experiment that could be applied to several faults of wind turbines that created machine learning models that reliably predict these faults.Com a crescente preocupação ambiental existente nos dias de hoje, fontes de energia renovável são cada vez mais procuradas pelas empresas de distribuição de energia. Estas fontes, como as turbinas eólicas, são expostas a diversos fatores externos e a falhas mecâni- cas dos seus complexos componentes. Estas falhas levam a diversas consequências devido ao tempo fora de serviço: perda de produção de energia, levando a que menos energia renovável seja transmitida para a rede elétrica e também maiores custos de reparação. O conteúdo desta tese apresenta uma análise à implementação de um sistema de predição de falhas aliado a um sistema de monitorização. Este sistema irá permitir a deteção de falhas nos ativos eólicos, antecipando as mesmas e assim reduzindo todos os custos de manutenção, aumentando a longevidade dos componentes. A redução das falhas irá per- mitir à empresa aumentar o lucro derivado da produção de energia a longo prazo. Com o trabalho realizado, foi possível implementar uma experiência que pode ser aplicada às diversas falhas de turbinas eólicas que crie modelos de aprendizagem automática que consigam prever estas mesmas falhas de um modo fiável

Fertility preservation and parenthood: perspectives of trans and non-binary youth and parents in Portugal

(1) Background: Fertility preservation allows for trans and non-binary individuals to achieve parenthood using their own gametes. Considering that preservation of gametes can be performed at increasingly earlier ages, it is important to analyze both the attitudes of trans and non-binary youth and their parents towards available family formation options, including fertility preservation. We aimed to explore attitudes toward parenthood and fertility among trans and non-binary youth and parents of trans and non-binary youth. (2) Methods: A questionnaire about fertility attitudes was administered to 33 adolescents and young adults and 27 parents. (3) Results: Trans and non-binary youth showed little interest in resorting to fertility preservation, and both parents and youth mentioned the lack of knowledge about this procedure as the main reason for not performing it. Parents were overall supportive of their children’s decisions, including the choice of different pathways to parenthood other than biological reproduction. (4) Discussion: Health providers should ensure that young trans and non-binary persons and their parents are aware of family formation options, including fertility preservation along with its impact in future genetic parenthood

Atitudes face à diversidade sexual no contexto psicossocial, jurídico, da saúde e educativo

In the current study we sought to investigate the attitudes towards sexual diversity evidenced by persons who, in their specific areas of intervention, will deal with children, adolescents, and adults. With this goal in mind, a group of future professionals from psychosocial, legal, health, and educational domains (N = 1288) were asked about their attitudes towards lesbians and gay men, and their interpersonal/academic exposure to sexual diversity. There was a tendency for students in Education, Medicine and Law degrees to report more negative attitudes towards lesbians and gay men, than students in psychosocial areas. Law students had the least contact with non-heterosexual persons and Education students had the least contact with scientific information pertaining to sexual diversity, results which may partly inform their negative attitudes toward sexually diverse people. Implications of this study aim to raise awareness of the need for future professionals to consider the implications of how their attitudes may impact sexually diverse people. The need for the inclusion of these issues in the curricula of university degrees is also highlighted.Procurou-se, neste estudo, averiguar as atitudes face à diversidade sexual de pessoas que, nas suas áreas específicas de intervenção, lidarão com crianças, adultos e jovens. Para tal, um conjunto de futuros profissionais da área psicossocial, jurídica, da saúde e da educação (N = 1288) foi inquirido sobre as suas atitudes face a lésbicas e a gays e o seu contacto pessoal/científico com a diversidade sexual. Verificou-se uma tendência para os alunos dos cursos de Educação, Medicina e Direito evidenciarem atitudes mais negativas face a lésbicas e a gays, do que os alunos provenientes de cursos da área psicossocial. Os alunos de Direito foram os que reportaram menos amigos/as não heterossexuais e os alunos de Educação os que referiram menos contacto com informação científica sobre diversidade sexual, resultados que poderão explicar parcialmente as suas atitudes. As implicações deste estudo remetem para a consciencialização dos futuros profissionais acerca das suas atitudes face à diversidade sexual e para a abordagem desta temática no âmbito dos curricula das licenciaturas