DRM analysis using a simulator of multiprocessor embedded system

Mestrado em Engenharia Electrónica e TelecomunicaçõesOs sistemas multiprocessador são uma tecnologia emergente. O projecto Hijdra, que está a ser desenvolvido na “NXP semiconductors Research” é um sistema multiprocessador de tempo real que corre aplicações com constrangimentos do tipo “hard” e “soft”. Nestes sistemas, os processadores comunicam através de uma rede de silício. As aplicações que correm no sistema multiprocessador consistem em múltiplas tarefas que correm em processadores embutidos. Achar soluções para o mapeamento das tarefas é o maior problema destes sistemas. Uma aplicação para este sistema que tem vindo a ser estudada é o “Car Radio”. Esta dissertação diz respeito a uma aplicação de rádio digital (DRM) na arquitectura Hijdra. Neste contexto, uma aplicação de um receptor de DRM foi estudada. Um modelo de análise de “Data Flow” foi extraído a partir da aplicação, foi estudada a latência introduzida na rede de silício pela introdução de um novo processador (acelerador de Viterbi) e foi estudada a possibilidade do mapeamento das várias tarefas da aplicação em diferentes processadores a correr em paralelo. Muitas estratégias ainda ficaram por definir a fim de optimizar o desempenho da aplicação do receptor de DRM de modo a esta poder trabalhar de uma forma mais eficaz. ABSTRACT: Multiprocessor systems are an emerging technology. The Hijdra project being developed at NXP semiconductors Research is a multiprocessor system running with both hard and soft real time streaming media jobs. These jobs consist of multiple tasks running on embedded multiprocessors. Finding good solutions for job mapping is the main problem of these systems. One application which has being studied for Hijdra is the “Car Radio”. This thesis concerns the study of a digital radio receptor application (DRM) in Hijdra architecture. In this context, a data flow model of analysis was extracted from the application, the latency introduced by the addition of a new tile (Viterbi accelerator) and eventual speed gains were studied and the possibility of mapping the different tasks of the application in different processors was foreseen. Many strategies were yet to be defined in order to optimize the application performance so it can work more effectively in the multiprocessor system

Water-Tank Studies of Separating Flow Over Rough Hills

The present work investigates the lower boundary condition for flows over a steep, rough hill. Simple asymptotic arguments together with the mixing-length hypothesis are used to derive a local analytical solution that is tested against three different flow conditions. In all, 36 velocity profiles are compared with the proposed expression. The experiments were carried out in a water channel and velocity measurements were made through laser Doppler anemometry. The extent of separated flow was made to vary as a function of the roughness and the Reynolds number. The analysis includes regions of attached as well as separated flow. In particular, the solution of Stratford is studied at the points of separation and re-attachment and found to apply equally well in rough walls.Indisponível

The effect of roughness on separating flow over two-dimensional hills

Two new experimental data sets for turbulent flow over a steep, rough hill are presented. These include detailed laser Doppler anemometry measurements obtained at the separation and reattachment points and, in particular, within the reverse flow region on the lee side of the hill. These results allow the development of a new parametrization for rough wall boundary layers and validate the use of Stratford’s solution for a separating rough flow. The experiments were conducted in a water channel for two different Reynolds numbers. In the first set of rough wall experiments, the flow conditions and the hill shape are similar to those presented in Loureiro et al. (Exp. Fluids, 42:441–457, 2007a) for a smooth surface, leading to a much reduced separation region. In the second set of experiments, the Reynolds number is raised ten times. The region of separated flow is then observed to increase, but still to a length shorter than that recorded by Loureiro et al. (Exp. Fluids, 42:441–457, 2007a). Detailed data on mean velocity and turbulent quantities are presented. To quantify the wall shear stress, global optimization algorithms are used. The merit function is defined in terms of a local solution that is shown to reduce to the classical law of the wall far away from a separation point and to the expression of Stratford at a separation point. The flow structure at the separation point is also discussed.Indisponível

I Fórum Científico da Saúde Mental e Atenção Psicossocial do Ceará: Relato de experiência da construção e realização

Objective: To report on the activities carried out for the I Scientific Forum on Mental Health and Psychosocial Care of Ceará, conceived by the Ceará Health Department (SESA) and the Ceará School of Public Health (ESPCE), which took place on July 1, 2022 in Fortaleza. Experience report: This is an experience report that reflects the need to publicize the actions carried out within the scope of Primary Health Care (APS) and Health Care Networks (RAS) and the need to discuss the relevance of the theme in the context of mental health and psychosocial care as a public policy of the State in an event that integrated social participation, management and professional training. The presentation of 132 scientific scientific works and artistic productions was part of the forum, with part of the program being broadcast virtually. The relevance of the initiative was confirmed by the great adherence of health professionals, 700 virtual registrations and the participation of 200 people in the face-to-face event. It stands out as political, technical and scientific spaces for sharing and producing knowledge that can consolidate professional training, allowing the development of new skills and the construction of bonds for professional and human improvement. Conclusion: Finally, it is suggested that this event has a periodicity for its effectiveness as a way to strengthen the state policy on mental health, alcohol and other drugs.Objetivo: Informar sobre las actividades realizadas para la construcción y realización del I Foro Científico sobre Salud Mental y Atención Psicosocial de Ceará, concebido por la Secretaría de Salud de Ceará (SESA) y la Escuela de Salud Pública de Ceará (ESPCE), que ocurrió en 1 de julio de 2022 en Fortaleza.  Informe de experiencia: Este es un relato de experiencia que refleja la necesidad de dar a conocer las acciones realizadas en el ámbito de la Atención Primaria de Salud (APS) y las Redes de Atención a la Salud (RAS) y la necesidad de discutir tema en el contexto de la salud mental y la atención psicosocial como política pública de Estado en un evento que integró participación social, gestión y formación profesional. La presentación de 132 trabajos científicos y producciones artísticas fue parte del foro, siendo parte del programa transmitido de manera virtual. La relevancia de la iniciativa fue confirmada por la gran adhesión de los profesionales de la salud, 700 inscripciones virtuales y la participación de 200 personas en el evento presencial. Se destaca como espacios políticos, técnicos y científicos para compartir y producir conocimientos que consoliden la formación profesional, permitiendo el desarrollo de nuevas habilidades y la construcción de vínculos para la superación profesional y humana. Conclusión: Finalmente, se sugiere que este evento tenga una periodicidad para su efectividad como forma de fortalecer la política estatal en materia de salud mental, alcohol y otras drogas.Objetivo: Relatar às atividades realizadas para a construção e realização do I Fórum Científico de Saúde Mental e Atenção Psicossocial do Ceará, junto à Secretaria de Saúde do Ceará (SESA) e à Escola de Saúde Pública do Ceará (ESPCE), ocorrido em 01 de julho de 2022 em Fortaleza. Relato da Experiência: Trata-se de um relato de experiência que reflete necessidade de divulgar as ações realizadas no âmbito da Atenção Primária e Saúde (APS) e Redes de Atenção à Saúde (RAS) e da necessidade de discutir a pertinência da temática no âmbito da saúde mental e atenção psicossocial enquanto política pública do Estado em um evento que integrou participação social, gestão e formação profissional. Fez parte do fórum a apresentação de 132 trabalhos científicos e produções artísticas, havendo transmissão virtual de parte da programação. A relevância da iniciativa foi confirmada pela grande adesão dos profissionais da saúde, 700 inscrições virtuais e a participação de 200 pessoas no evento presencial. Ressalta-se como políticos, técnicos e científicos os espaços de partilha e produção de conhecimento que podem consolidar a formação profissional, permitindo o desenvolvimento de novas habilidades e a construção de vínculos para o aprimoramento profissional e humano. Conclusão: Sugere-se por fim que tal evento tenha periodicidade para a sua efetivação enquanto caminho para o fortalecimento da política estadual de saúde mental, álcool e outras drogas

Total parathyroidectomy in a large cohort of cases with hyperparathyroidism associated with multiple endocrine neoplasia type 1: experience from a single academic center

Most cases of sporadic primary hyperparathyroidism present disturbances in a single parathyroid gland and the surgery of choice is adenomectomy. Conversely, hyperparathyroidism associated with multiple endocrine neoplasia type 1 (hyperparathyroidism/multiple endocrine neoplasia type 1) is an asynchronic, asymmetrical multiglandular disease and it is surgically approached by either subtotal parathyroidectomy or total parathyroidectomy followed by parathyroid auto-implant to the forearm. In skilful hands, the efficacy of both approaches is similar and both should be complemented by prophylactic thymectomy

The effect of roughness on separating flow over two-dimensional hills

20 p. : il.Two new experimental data sets for turbulent flow over a steep, rough hill are presented. These include detailed laser Doppler anemometry measurements obtained at the separation and reattachment points and, in particular, within the reverse flow region on the lee side of the hill. These results allow the development of a new parametrization for rough wall boundary layers and validate the use of Stratford’s solution for a separating rough flow. The experiments were conducted in a water channel for two different Reynolds numbers. In the first set of rough wall experiments, the flow conditions and the hill shape are similar to those presented in Loureiro et al. (Exp. Fluids, 42:441–457, 2007a) for a smooth surface, leading to a much reduced separation region. In the second set of experiments, the Reynolds number is raised ten times. The region of separated flow is then observed to increase, but still to a length shorter than that recorded by Loureiro et al. (Exp. Fluids, 42:441–457, 2007a). Detailed data on mean velocity and turbulent quantities are presented. To quantify the wall shear stress, global optimization algorithms are used. The merit function is defined in terms of a local solution that is shown to reduce to the classical law of the wall far away from a separation point and to the expression of Stratford at a separation point. The flow structure at the separation point is also discussed