Transferência de calor inversa do método convencional e do otimizado de lubri-refrigeração na retificação plana tangencial

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Fluxo institucional de resíduos de equipamentos elétricos e eletrônicos e identificação de seus potenciais impactos ambientais e na saúde

A preocupação ambiental em relação aos resíduos de equipamentos elétricos e eletrônicos (REEE) vem crescendo muito nos últimos anos devido à presença de substâncias perigosas que podem causar danos ao ambiente e à saúde. O trabalho teve por objetivo investigar o destino de REEE gerados no Campus Quadrilátero da Saúde/Direito (CQS/D) da Universidade de São Paulo (Faculdade de Medicina, Faculdade de Saúde Pública, Escola de Enfermagem, Instituto de Medicina Tropical e Faculdade de Direito), a partir do momento em que os mesmos deixam as dependências da Instituição e identificar potenciais riscos à saúde e ao ambiente, decorrentes das atuais ações de gerenciamento dos REEE nas unidades estudadas. A pesquisa desenvolveu-se em 3 etapas: a) pesquisa bibliográfica e documental; b) visitas às unidades que compõem o CQS/D, e identificação de cinco intituições filantrópicas como principais destinos; c) visitas aos locais identificados para investigar as atividades desenvolvidas para a recuperação de equipamentos, componentes ou materiais recicláveis, com base em um formulário desenvolvido. Adicionalmente, foram realizadas visitas a outros quatro locais de destino de REEE. Foi identificado que as etapas realizadas nas instituições são: recebimento, teste, conserto e desmontagem manual e que o destino dos REEE pode ser considerado problemático, já que os rejeitos acabam sendo descartados como resíduo comum, podendo causar danos ao ambiente e à saúde. Além disso há riscos ocupacionais, pois os trabalhadores, além de não utilizarem equipamentos de proteção individual necessários, nem sempre recebem capacitação para exercer suas funções

Simulação numérica de fluxo de águas subterrâneas na bacia do Rio Grande (BA)

The Urucuia Aquifer System represents a strategic water source in western Bahia. Its baseflow is responsible for the flow rate of the main tributaries of São Francisco river left bank in the dry season, including the Rio Grande, its main tributary in Bahia state. This river has a hydrological regime heavily affected by groundwater and is located in a region with conflicts about water resources. The aquifers geology is constituted by neocretacious sandstones of Urucuia Group subdivided in Posse Formation and Serra das Araras Formation. The embasement is formed by neoproterozoic rocks of Bambuí Group. This work focuses on an important tool application, the mathematical model, whose function is represent approximately and suitably the reality so that can assist in different scenarios simulations and make predictions. Many studies developed in this basin provided the conceptual model basis including a full free aquifer, lithological and hydraulical homogeneity in entire basin, null flux at plateau borders and aquifer base. The finite element method is the numerical method used and FEFLOW the computational algorithm. The simulated area was discretized in a single layer with 27.357,6 km² (314.432 elements and 320.452 nodes) totaling a 4.249,89 km³ volume. Were utilized 21 observation wells from CERB to calibrate the model. The terrain topography was obtained by SRTM data and the impermeable base was generated by interpolation of descriptive profiles from wells and electric vertical drilling from previous studies. Works in this area obtained mean recharge rates varying approximately from 20% to 25% of average precipitation, thus the values of model recharge zones varying in this range. Were distributed 4 hydraulic conductivity zones: (K1) west zone with K=6x10-5 m/s; (K2) center-east zone with K=3x10-4 m/s; (K3) far east zone with K=5x10-4 m/s; e (K4) east-north zone with K=1x10-5 m/s. Thereby was incorporated to the final conceptual model...

Arranjo fisico na montagem com fluxo continuo nas superficies de comando composto

Based on the fierce competitiveness of manufacturing companies and the planning problems arising from the lack of flexibility and forecasting demand, companies are increasingly looking to reflect on the most appropriate methods to manage its manufacture. Today it is possible to obtain higher gains and lower costs through very efficient tools, this paper uses action-research to model and implement the physical layout of a manufacturing cell, with strong theoretical basement returned to Lean Production System and acting systematically in flexibility in mounting. Through observation and joint action of the observer and staff can report problems that occurred during the phases of planning and implementation of improvements. With the improvement of the physical arrangement in the assembly was possible to obtain significant gains by reducing the production cycle, the manpower required, spending of non-compliance and increasing productivity, final product quality and health in the workplace

Efeito da especificidade do treinamento (de fundistas e culturistas) sobre os indicadores bioquímicos do estresse obtidos em teste de esforço máximo em esteira e com pesos

Dezesseis atletas treinados em musculação (grupo AN = 7) ou em corridas de longa distância (AE = 9) foram submetidos a exercícios de máxima intensidade específicos e inespecíficos a sua modalidade de treinamento. A influência da especificidade do treinamento sobre as alterações promovidas por sessões agudas de exercício exaustivo nos parâmetros hemodinâmicos, de dano muscular e de estresse oxidativo foi analisada, e foram comparados os padrões de resposta aos exercícios entre os dois grupos. Os testes máximos consistiram de teste exaustivo em esteira, utilizando protocolo de rampa, e teste com pesos utilizando cargas iniciais de 80% de 1RM, progressivamente reduzidas, até a exaustão, em dois exercícios que abrangeram grupos musculares distintos. Foram realizadas coletas de sangue antes e imediatamente após os exercícios para a determinação de indicadores de hemoconcentração, de lesão muscular, de processo inflamatório e determinação de parâmetros hemogasimétricos. A glicemia se elevou significativamente após os testes somente para o grupo AE. Foram verificados aumentos significativos na acidose devidos a elevação das concentrações de lactato, H+ combinados a redução do HCO3-. Foram observadas variações significativas nas concentrações dos íons sódio e potássio. Também houveram aumentos significativos nas concentrações de CPK e DHL. Além disso, houveram elevações das concentrações plasmáticas e dos leucócitos. Dentro dos parâmetros analisados, as respostas observadas não foram uniformes em comparação aos dois grupos, e houve variação também interna aos grupos, quando comparados os exercícios específicos aos inespecíficos. Os resultados apontam que embora seja esperada uma resposta metabólica característica após o esforço físico exaustivo, a especificidade do treinamento é determinante sobre os processos adaptativos... (Resumo completo, clicar acesso eletrônico abaixo)

Aplicabilidade da metodologia de citometria de fluxo

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Simulação numérica de fluxo de águas subterrâneas na fazenda Cara Preta - Santa Rita do Passa Quatro - SP

The term model refers to any representation of a real system. The use of models in Hydrogeology can be valuable predictive tools for management of groundwater resources. The numeric models of groundwater flow, object of this study, consist on a set of differential equations that describe the water flow in the porous medium. In this context, numeric simulations were made for a sub-basin located at Cara Preta farm – Santa Rita do Passa Quatro – SP. The aquifer at the local is composed by rocks of Pirambóia Formation, which is part of Guarani Aquifer System. It was developed a conceptual model from previous studies in the area, and from that, simulations were made through the software Visual Modflow®. The conceptual model established previously was considered consistent through the results of simulation.

Resolução de problema de valor no contorno associado ao projeto de reatores de fluxo disperso empregados no tratamento de efluentes

The objective of this work was to develop a numerical method to solve boundary value problems concerning to the use of dispersion model for describing the hydraulic behavior of chemical or biological reactors employed in the wastewater treatment. The numerical method was implemented in FORTRAN language generating a computational program which was applied to solve cases involving reaction kinetics of both integer and fractional orders. The developed method was able to solve the proposed problems evidencing to be a useful tool that provides more accurate design of wastewater treatment reactors

Influência do exercício resistido com restrição do fluxo sanguíneo sobre ativação muscular

Conventional resistance training (TRC) is capable to generate muscular responses according to provided stimuli, as, training volume and intensity. The TRC results in force gains in general. Studies aim this gain to neural adaptation initially, followed by hypertrophy gains. However, studies that used TRC associated to blood flow restriction (RFS) found rise in force and hypertrophy without necessarily detecting rise in neural activity. Therefore this review had as objective, bring up literature data that report this fact and yet, speculate possible elucidation about this responses inversion

Efeito do treinamento físico aeróbio em hipertensos de meia idade e idosos nos valores de consumo máximo de oxigênio

The aim of this study was to investigate whether aerobic capacity (VO2max) would be modified by antihypertensive therapy in elderly and middle-age women after 12 weeks of exercise training. The volunteers were divided in two groups: normotensive (n=14) and hypertensive (n=14). Aerobic exercise was performed for 3 days/week, during 60 minutes, for 12 weeks with an intensity of 50-70% rest heart hate. Anthropometric parameters (weight and height), body fat index, % of fat mass, cardiopulmonary evaluation to calculated VO2max and a cardiovascular evaluation with blood pressure and rest heart hate were evaluated at baseline and after training program. At the end of study abdominal circumference and Borg scale were also evaluated. Our findings showed the aerobic program of 12 weeks was effective to reduce diastolic blood pressure in both groups. Systolic blood pressure was reduced only hypertensive group. No evidences were found the aerobic capacity was affected by hypertensive therapies. In conclusion, the aerobic program for 12 weeks was effective to reduce blood pressure and there was no influence of antihypertensive therapy on the aerobic capacity in this particular population.

Análise da proposta de melhoria do fluxo na área comercial central do municípo de Rio Claro-SP

The development of medium-sized cities in recent decade, caused, partly, by the industrial deconcentration process generated, beyond benefits, several problems for these cities population. The unplanned rapid growth of these cities, together with the capitalist model of production collaborated for the increase of socioeconomics questions in these locations. The urban mobility became one of these problems, embarrassing citizen’s lives, especially in downtown area. Therefore, the State began looking for solutions to improve urban mobility of the population, contributing to their quality of life and also to adapt the city to new market demand. In these work, we analyzed the situation of Brazilian medium-sized cities downtown area, as well as its growth process, tanking as an example the case of the city of Rio Claro – SP and it´s Public Administration proposal to improve the flow and urban mobility in a particular street in the town´s commercial centre

Aplicações do fluxo de Ricci à teoria da relatividade geral: estudo dos buracos negros

The flow of Ricci is an analytical tool, and a similar equation for heat geometry, a diffusive process which acts on a variety of metrics Riemannian and thus can be used in mathematics to understand the topology of varieties and also in the study geometric theories. Thus, the Ricci curvature plays an important role in the General Theory of Relativity, characterized as a geometric theory, which is the dominant term in the Einstein field equations. The present work has as main objectives to develop and apply Ricci flow techniques to general relativity, in this case, a three-dimensional asymptotically flat Riemannian metric as a set of initial data for Einstein equations and establish relations and comparisons between them.

Fluxo gênico, estrutura genética espacial intrapopulacional e sistema de reprodução hierárquico entre e dentro de frutos em uma pequena população isolada de Genipa americana L., utilizando marcadores microssatélites

Pós-graduação em Agronomia - FEIS

Influência do diâmetro foraminal do canal radicular, do tipo e da penetração de agulha, e do fluxo da solução irrigadora na limpeza e na extrusão apical

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Transporte mucociliar e função autonômica de tabagistas submetidos ao esforço físico submáximo e máximo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)