Caracterização e avaliação do macro sistema urbano de distribuição de água de Natal RN

The aim of this study is to characterize and evaluate the Macro System of Regional Water Distribution Natal North (RNN) and Southern Regional Natal (RNS), covering 35% and 65% respectively of the Natal-RN City. The terms of the quality and quantity of water (surface and groundwater) were also evaluated in order to adjust the parameters that contribute to proper distribution and control in water reserves. The methodology of the work took place from collecting volumetric data of production capacity and distribution of the two treatment plants for Regional as well as the flow rates of wells. Yet the quantitative capacity of reservation, distribution and consumption of the main reservoirs, population numbers and consumption of members neighborhoods were collected. Data were tabulated and used in computational simulator EPANET to diagnose possible through the water balance, the offers and demands on the water supply system in the neighborhoods of the capital, linking them to specific distribution points. We also evaluated the wells in the levels of nitrate in water consumed. As a result it was found that some neighborhoods in the South Regional Natal, was ranked as critical supply situation: City of Hope, Lagoa Nova and Nova Descoberta, where demand exceeds supply. While in most Northern Regional Natal present deficiency in the supply system as: Lagoa Azul, the Parque dos Coqueiros, igapó, Amarante and Salinas. The rates of nitrate in the city were significant, but manageable with corrective and preventive measures. The averages were 12 mg /l-N in Candelária, 10 mg/l-N in Lagoa Nova, 9 mg/l-N in Satelite, 20 mg/l-N in Gramore and 15 mg/l-N in N. Sra. Apresentação. Therefore proper distribution of water abstracted and implementation of quality control ensures the supply required by the system, associated with preservation of Water Resources of the Metropolitan Region of Natal

Otimização de um sistema de distribuição predial de água fria: estudo de caso

This dissertation presents a methodology to the optimization of a predial system of cold water distribution. It s about a study of a case applied to the Tropical Buzios Residential Condominium, located in the Búzio s Beach, Nísia Floresta city, the east coast of the Rio Grande do Norte state, twenty kilometers far from Natal. The design of cold water distribution networks according to Norm NBR 5626 of the ABNT - Brazilian Association of Techniques Norms, does not guarantee that the joined solution is the optimal solution of less cost. It s necessary the use of an optimization methodology, that supplies us, between all the possible solutions, the minimum cost solution. In the optimization process of the predial system of water distribution of the Tropical Búzios Condominium, is used Method Granados, that is an iterative algorithm of optimization, based on the Dynamic Programming, that supplies the minimum cost s network, in function of the piezometric quota of the reservoir. For the application of this Method in ramifies networks, is used a program of computer in C language. This process is divided in two stages: attainment of the previous solution and reduction of the piezometric quota of headboard. In the attainment of the previous solution, the minors possible diameters are used that guarantee the limit of maximum speed and the requirements of minimum pressures. The piezometric quota of headboard is raised to guarantee these requirements. In the second stage of the Granados Method, an iterative process is used and it objective is to reduce the quota of headboard gradually, considering the substitution of stretches of the network pipes for the subsequent diameters, considering a minimum addition of the network cost. The diameter change is made in the optimal stretch that presents the lesser Exchange Gradient. The process is locked up when the headboard quota of desired is reached. The optimized network s material costs are calculated, and is made the analysis of the same ones, through the comparison with the conventional network s costs

Capacidade cardiorrespiratória e distribuição de gordura corporal de mulheres com 50 anos ou mais

Verificar a relação entre capacidade cardiorrespiratória e gordura corporal em mulheres. Foram analisadas 229 mulheres com idade entre 50 e 84 anos. Foi realizada avaliação antropométrica e calculada a razão cintura/quadril, bem como o índice de conicidade. A capacidade cardiorrespiratória foi avaliada pelo teste de caminhada de seis minutos. Com o pedômetro foi possível avaliar: velocidade, comprimento da passada e total de passos. Os resultados foram distribuídos em quartil, e a comparação feita pela análise de variância com post-hoc. A relação entre teste de caminhada de seis minutos e a antropometria foi feita pela correlação de Pearson. Os resultados revelaram que mulheres com capacidade cardiorrespiratória no quartil4 apresentaram idade estatisticamente menor (p<0,05) que as do quartil1. As medidas antropométricas apresentaram valores menores (p<0,05), quando comparados os resultados dos quartis3 e 4 com os quartis1 e 2. Conclui-se que mulheres com maior tecido adiposo e acúmulo de gordura central apresentam menor capacidade cardiorrespiratória.

Estimates for the Poisson kernel and Hardy spaces on compact manifolds

We study Hardy spaces on the boundary of a smooth open subset or R-n and prove that they can be defined either through the intrinsic maximal function or through Poisson integrals, yielding identical spaces. This extends to any smooth open subset of R-n results already known for the unit ball. As an application, a characterization of the weak boundary values of functions that belong to holomorphic Hardy spaces is given, which implies an F. and M. Riesz type theorem. (C) 2004 Elsevier B.V. All rights reserved.

Análise da distribuição espacial da hanseníase no Estado de São Paulo, 1991-2002

A hanseníase no Brasil ainda é um problema a ser equacionado e, no Estado de São Paulo, há varias regiões com altas taxas de detecção. O presente estudo objetivou analisar a distribuição e quantificar a dependência espacial das taxas médias de detecção da hanseníase no Estado de São Paulo, no período de 1991-2002, empregando técnicas geoestatísticas. Verificou-se tendência levemente decrescente das taxas médias de detecção para o Estado de São Paulo. Altos índices do indicador podem ser visualizados nas regiões oeste e noroeste de São Paulo. A dependência espacial encontrada foi de aproximadamente 30 km. Com os resultados encontrados, conclui-se que a análise de superfície das taxas médias de detecção pode auxiliar na escolha de áreas prioritárias visando aos exames de coletividade e ao incremento dos exames nos contatos dos casos detectados.

Função de distribuição generalizada aplicada à velocidade de rotação estelar

In the present work we use a Tsallis maximum entropy distribution law to fit the observations of projected rotational velocity measurements of stars in the Pleiades open cluster. This new distribution funtion which generalizes the Ma.xwel1-Boltzmann one is derived from the non-extensivity of the Boltzmann-Gibbs entropy. We also present a oomparison between results from the generalized distribution and the Ma.xwellia.n law, and show that the generalized distribution fits more closely the observational data. In addition, we present a oomparison between the q values of the generalized distribution determined for the V sin i distribution of the main sequence stars (Pleiades) and ones found for the observed distribution of evolved stars (subgiants). We then observe a correlation between the q values and the star evolution stage for a certain range of stel1ar mass