Ampliação e Reconstrução de um Edifício Unifamiliar

Pretende-se com este trabalho apresentar os Projectos de estruturas, de Comportamento Térmico e de Abastecimento de Água e Drenagem de Águas Pluviais e Residuais de uma habitação unifamiliar. Trata-se de um edifício situado no concelho de Ponte Lima que será reconstruído e ampliado de forma a se constituir uma habitação de tipologia T3. Uma vez que a realidade da actividade do projecto de estruturas actual é baseada na aplicação de ferramentas de processo automático de dados, foi naturalmente utilizado um programa de cálculo na modelação do edifício. No entanto, foram igualmente aplicados métodos tradicionais, nomeadamente na fase de pré-dimensionamento, na validação do modelo e no dimensionamento do edifício existente. O Estudo do Comportamento Térmico teve como objectivo primordial optar por soluções construtivas que permitissem, aos ocupantes da habitação, um conforto térmico com o mínimo esforço energético possível. Desta forma, analisaram-se as plantas de arquitectura, definiram-se os elementos da envolvente e os equipamentos necessários, e procedeu-a à avaliação térmica segundo o disposto na Legislação Nacional Para culminar o trabalho, desenvolveu-se o Projecto de Abastecimento de Água e Drenagem de Águas Pluviais e Residuais, dispondo os elementos e acessórios das redes segundo as regras de implantação e dimensionamento previstas na regulamentação em vigor.

Practical Data Collection: Establishing Methods and Procedures for Measuring Water Clarity and Turbidity of Storm Water Run-Off from Active Major Highway Construction Sites, 2014

In anticipation of regulation involving numeric turbidity limit at highway construction sites, research was done into the most appropriate, affordable methods for surface water monitoring. Measuring sediment concentration in streams may be conducted a number of ways. As part of a project funded by the Iowa Department of Transportation, several testing methods were explored to determine the most affordable, appropriate methods for data collection both in the field and in the lab. The primary purpose of the research was to determine the exchangeability of the acrylic transparency tube for water clarity analysis as compared to the turbidimeter.

Residual monomer of reline acrylic resins - Effect of water-bath and microwave post-polymerization treatments

Objectives. This study compared the residual monomer (RM) in four hard chair-side reline resins (Duraliner II-D, Kooliner-K, Tokuso Rebase Fast-TRF and Ufi Gel hard-UGH) and one heat-polymerized denture base resin (Lucitone 550-L), which was processed using two polymerization cycles (short-LS and long-LL). It was also investigated the effect of two after polymerization treatments on this RM content.Methods. Specimens (n = 18) of each material were produced following the manufacturers' instructions and then divided into three groups. Group I specimens were left untreated (GI-control). Specimens of group II (GII) were given post-polymerization treatment by microwave irradiation. In group III (GIII), specimens were submitted to immersion in water at 55 degrees C (reline resins-10 min; denture base resin L-60min). The RM was analyzed using high performance liquid chromatography (HPLC) and expressed as a percentage of RM. Data were analyzed by two-way ANOVA followed by Tukey's test (alpha = 0.05).Results. Comparing control specimens, statistical differences were found among all materials (p < 0.05), and the results can be arranged as K (1.52%) > D (0.85%) > UGH (0.45%) > LL (0.24%) > TRF (0.14%) > LS (0.08%). Immersion in hot water (GIII) promoted a significant (p < 0.05) reduction in the RM for all materials evaluated compared to control (GI), with the exception of LL specimens. Materials K, UGH and TRF exhibited significantly (p < 0.05) lower values of RM after microwave irradiation (GII) than in the control specimens.Significance. The reduction in RM promoted by water-bath and microwave post-polymerization treatments could improve the mechanical properties and biocompatibility of the relining and denture base materials. (c) 2006 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

Effects of Resources Exploitation on Water Quality: case studies in Salt Water Intrusion and Acid Mine Drainage

Throughout the world, pressures on water resources are increasing, mainly as a result of human activity. Because of their accessibility, groundwater and surface water are the most used reservoirs. The evaluation of the water quality requires the identification of the interconnections among the water reservoirs, natural landscape features, human activities and aquatic health. This study focuses on the estimation of the water pollution linked to two different environmental issues: salt water intrusion and acid mine drainage related to the exploitation of natural resources. Effects of salt water intrusion occurring in the shallow aquifer north of Ravenna (Italy) was analysed through the study of ion- exchange occurring in the area and its variance throughout the year, applying a depth-specific sampling method. In the study area were identified ion exchange, calcite and dolomite precipitation, and gypsum dissolution and sulphate reduction as the main processes controlling the groundwater composition. High concentrations of arsenic detected only at specific depth indicate its connexion with the organic matter. Acid mine drainage effects related to the tin extraction in the Bolivian Altiplano was studied, on water and sediment matrix. Water contamination results strictly dependent on the seasonal variation, on pH and redox conditions. During the dry season the strong evaporation and scarce water flow lead to low pH values, high concentrations of heavy metals in surface waters and precipitation of secondary minerals along the river, which could be released in oxidizing conditions as demonstrated through the sequential extraction analysis. The increase of the water flow during the wet season lead to an increase of pH values and a decrease in heavy metal concentrations, due to dilution effect and, as e.g. for the iron, to precipitation.

(Table 1) Water-extractable and acid-extractable carbohydrates in DSDP Leg 65 samples

Selected parts of ten frozen core samples from Holes 482A, 482B, 483A, and 485A, Leg 65 of the Deep Sea Drilling Project (DSDP), were analyzed for residual carbohydrates in order to determine the provenance and history of the organic material in the sediments. The samples, which represented silty-clay, shale, and nannofossil- chalk sediments, were analyzed for water-soluble monosaccharides, acid-soluble monosaccharides, and for starch and cellulose. Most samples yielded positive results for acid-extractable (polymeric) arabinose, fucose, xylose, mannose, galactose, and glucose. Amylose was detected in seven of the samples, whereas cellulose was found in only one. Possible explanations for the relatively high levels of free sugars are suggested in the conclusions to this chapter.

The Effectiveness of Rain Gardens as a Low-Impact Development Strategy for Storm Water Pollution Reduction in Western Washington

Stormwater runoff is a major cause of surface water pollution in western Washington and cost-effective control measures are needed to reduce contamination of receiving waters. This project evaluated the performance efficiency and costs of installing a residential rain garden by inspecting two gardens and testing water quality samples in one. Infiltration through the garden was effective in reducing metals and nutrients as indicated by reductions in copper and nitrate concentrations of 75% and 97%, respectively. The costs were affordable for most homeowners and cost-effective compared to other options. After doing on-site investigations, the storm water manual for the State of Washington was reviewed and eight recommendations were made for improving it.

The Rueter-Hess Dam and Reservoir Project: A Question of Sustainable Water

Water in sufficient quantities throughout the Colorado Front Range is becoming increasingly limited. This paper examines the consequences for continued unsustainable use of water for communities of the Denver metropolitan area. This paper also looks at the effect that water law in the West has for otherwise optimum distributions of water. In addition, four regional and state water studies are reviewed for their contribution to sustainable water. Finally, the Final Environmental Impact Statement of the Rueter-Hess dam and reservoir project in Parker, Colorado is explored. Key findings conclude that the Rueter-Hess project may not, by itself, provide sustainable water for Parker; but the project will create incentive and opportunity for communities throughout the region to address the question of sustainable water.

Storm water management model : level I, comparative evaluation of storage-treatment and other management practices /

Mode of access: Internet.

Records of wells, drillers' logs, water analyses, and maps showing location of wells. Works Progress Administration ground water survey project. Analyses made, maps prepared, data assembled and report mimeographed by Works Progress Administration ...

Title varies.

Project estimate for works of irrigation, drainage and navigation to develop the plain of central Siam.

At head of title: Kingdom of Siam, Ministry of Lands and Agriculture, Royal Irrigation Department.

Skeleton outline of a plan for developing the Delta-Mendota irrigation water supply and salt-water repulsion in the Sacramento-San Joaquin Delta Region, Central Valley Project, California /

Mode of access: Internet.

Water supply and drainage in buildings : proceedings of an international symposium, September 28-30, 1976, National Academy of Sciences, Washington, D.C. /

"CODEN: XNBSAV."

Standard practical plumbing; an exhaustive treatise on all branches of plumbing construction, including drainage and venting, ventilation, hot and cold water supply and circulation; showing the latest and best plumbing practice, special attention being given to the skilled work of the plumber, and to the theory underlying plumbing devices and operations,

Mode of access: Internet.