Testing integrated circuits to verify their operating frequency, known as delay testing, is essential to achieve acceptable product quality. The high cost of functional testing has driven the industry to automatically-generated structural tests, applied by low-cost testers taking advantage of design-for-test (DFT) circuitry on the chip. Traditional at-speed functional testing of digital circuits is increasingly challenged by new defect types and the high cost of functional test development. This research addressed the problems of accurate delay testing in DSM circuits by targeting resistive open and short circuits, while taking into account manufacturing process variation, power dissipation and power supply noise. In this work, we developed a class of structural delay tests in which we extended traditional launch-on-capture delay testing to additional launch and capture cycles. We call these Pseudofunctional Tests (PFT). A test pattern is scanned into the circuit, and then multiple functional clock cycles are applied to it with at-speed launch and capture for the last two cycles. The circuit switching activity over an extended period allows the off-chip power supply noise transient to die down prior to the at-speed launch and capture, achieving better timing correlation with the functional mode of operation. In addition, we also proposed advanced compaction methodologies to compact the generated test patterns into a smaller test set in order to reduce the test application time. We modified our CodGen K longest paths per gate automatic test pattern generator to implement PFT pattern generation. Experimental results show that PFT test generation is practical in terms of test generation time.

Nous étudions une nouvelles familles d'inhibiteurs de kinase: les benzopyridoindole. Ces molécules ont des effets antiprolifératifs sur des lignées cancéreuses et représentent les têtes de série de possibles agents anti-cancéreux. We study on a new family of kinase inhibitors: benzopyridoindole. These molecules have antiproliferative effects on cancer cell lines and represent the lead of potential anti-cancer products.

Cette thèse traite la fabrication de pièces composites par le procédé " Resin Transert Molding " (RTM), appliquée à des tubes de protections thermiques assemblées dans des propulseurs de systèmes d'armes. Ces travaux ont pour objectif de démontrer la faisabilité d'utilisation de ce procédé pour la fabrication de ces pièces complexes. C'est le préformage, première étape du procédé de fabrication par RTM, qui est étudié dans le cadre de cette thèse. Cette étape est cruciale du point de vue de la faisabilité de l'étape d'injection qui la suit dans le procédé RTM mais aussi pour s'assurer de la qualité de la pièce composite finale obtenue. L'objectif des travaux de thèse est triple. Il faut tout d'abord développer le protocole de fabrication répétable adapté pour garantir l'obtention de préformes conformes. Ce protocole devra être viable du point de vue industriel. Pour cela, une démarche expérimentale a été mise en place. Un pilote de laboratoire puis un pilote industriel ont permis de comprendre et maitriser les phénomènes survenant en cours de préformage en faisant varier les paramètres procédé pour la fabrication de nombreux prototypes. Un modèle macroscopique prédictif de la forme globale des plis obtenus à partir des paramètres procédés a été développé à l'aide des observations expérimentales. Un modèle mésoscopique, à l'échelle de la maille élémentaire, a été écrit également. Il permet de prédire, à partir des données constitutives du matériau et d'une géométrie de pièce, la déformation de compaction et de cisaillement, modes de sollicitations prépondérants en cours de préformage, subie par le renfort en cours de la première étape du procédé de fabrication. Ces modèles mésoscopique et macroscopique couplés permettent le développement d'un outil global qui, de manière théorique et prédictive, assure la faisabilité d'une pièce de géométrie connue avec un matériau connu et fournit les paramètres " procédé " optimum pour assurer sa fabrication future. Les phénomènes de déformation en cisaillement et compaction apparaissant sur la tresse en cours de préformage sont donc identifiés et connus. Le procédé de fabrication est optimisé et l'outil prédictif permet d'envisager et tester en amont un changement de matériau, de géométrie de pièce à fabriquer ou de cahier descharges industriel.

The experimental alloy powders of 1% Mg treated Al-8Fe-1.8V-8Si were obtained by air atomization. The screen analysis of powders was made by sieves with meshes ranging from +90&micro / m, +63&micro / m, +53&micro / m, +45&micro / m, +38&micro / m to -38&micro / m. Unreinforced and TiC particulate reinforced specimens were produced by hot dynamic consolidation which is known as hot swaging. Powders were canned into pure aluminium tubes of about 10cm length and 2.2cm diameter. Single action and double action cold pressing were applied to some of the specimens before hot dynamic compaction and some specimens of canned loose powder were also processed. The diameters of the hot compacts were decreased in a two step process by swaging machine (rotary dynamic compaction). During the first step, after canning, compacts had been held at 480&deg / C for 1 hour and swaged, thus the diameter decreased from 2.2 cm to 1.97cm. Secondly, the compacts were reheated to 480&ordm / C and held for 1 hour and further swaged to obtain a diameter decrease from 1.97cm to 1.54cm. Generally, the microstructures of the hot dynamic compacted specimens were homogeneous except the specimens produced by using -63 &micro / m +53 &micro / m powder size fraction. By SEM study, a vanadium free cross like AlFeSi phase was observed near the outer regions of the specimen. No considerable coarsening of the dispersoids was observed after hot dynamic compaction of +63 &micro / m size powder. For -90&micro / m +63&micro / m size powders, maximum flexural strength values obtained by three point bending test increased by addition of 10% TiC to from 152 MPa to 285 MPa at double pressed condition and from 76MPa to 190MPa at loose powder canning condition. By hardness tests, it was observed that hardness values were inversely proportional to powder size and increased from 107 BHN to 147 BHN for corresponding powder size range of +90&micro / m to -38&micro / m. Porosity values obtained by Archimedes principle for single pressing varied between 0.03 % and 1.10% for corresponding size range of +38&micro / m to +90&micro / m. No considerable porosity was detected for double pressing. Porosity values of canned loose powder were between 3% and 10% for the range of +38 &micro / m- +45 &micro / m. By X-Ray analysis, it was revealed that Mg2Si reaction did not form after artificial aging of specimens up to 8 hours at 190&deg / C. Also, x-ray analysis of individual powders and specimens obtained by hot dynamic compaction of the same powder showed that / after hot dynamic compaction, the alloy powders were stable and no new phase formation was detected for +63&micro / m size. DSC examination of the specimens produced from +90&micro / m, +63&micro / m, +53&micro / m, -38&micro / m powder confirmed the microstructure stability up to the melting temperature. Melting temperature was detected to be in the range of 560&deg / C-575&deg / C by DSC.

New Zealand's greenhouse gas inventory is dominated by the agricultural trace gases, CH4 and N2O instead of CO2, which is dominant on a global scale. While the majority of the anthropogenic CH4 is emitted by ruminant animals as a by-product of enteric fermentation, N2O is mainly produced by microbial processes occurring in the soil. In grazed pastoral soils, N2O is generated from N originating from dung, urine, effluent applied to land, biologically fixed N2 and fertiliser. The amount of emission depends on complex interactions between soil properties, climatic factors and management practices. Increased intensification of pastoral agriculture in New Zealand, particularly in dairying has led to an increased production of farm dairy effluent. Traditionally, direct disposal of nutrient rich farm dairy effluents (FDE) into water bodies was an acceptable practice in New Zealand, but with the introduction of the Resource Management Act (1991), discharge of effluents into surface waters is now a controlled activity and many Regional Councils encourage the land irrigation of effluents to protect surface water quality. While the impact of grazing and FDE irrigation on groundwater contamination through leaching and runoff of nutrients has been studied extensively, there has been only limited work done on the effect of these practices on air quality as affected by N2O emission. This thesis examines the effects of various factors, such as compaction due to cattle treading, and the nature, application rate and time of effluent application on N2O emission in relation to the changes in the soil physical properties and C and N transformation from a number of small plot and field experiments. The results were then used, together with data from the literature, to predict the emissions from effluent irrigated pastures using a process-based model. In grazed pastures, animal treading causes soil compaction, which results in decreased soil porosity and increased water filled pore space that stimulate the denitrification rate as well as influence the relative output of N2O and dinitrogen (N2) gases. A field plot study was conducted to determine N2O emission from different N sources as affected by soil compaction. The experiment comprised two main treatments (uncompacted and compacted) to which four N sources (natural cattle urine, potassium nitrate, ammonium sulphate and urea at the rate of 600kg N ha-1) and a control (water only) were applied. Compaction was obtained through driving close parallel tracks by the wheels of the vehicle. The changes in the soils physical properties (bulk density, penetration resistance (PR), soil matric potential and oxygen diffusion rate (ODR) due to the compaction created by the wheel traction of the vehicle were compared with the changes in these properties due to the treading effect of grazing cattle, which was monitored in another field experiment. The N2O fluxes were measured using a closed chamber technique. The compaction at the grazing trial and at the wheel traction experimental plot caused significant changes in soil bulk density, PR, soil matric potential and ODR values. Overall, the bulk density of the compacted soil was higher than the uncompacted soil by 6.7% (end of 3 weeks) and 4.9% (end of 1 week) for the field experiment and the grazing trial, respectively. Results suggest that maximum compaction occurred in the top 0-2 cm layer. Compaction caused an increase in N2O emission, which was more pronounced in the nitrate treatment than in the other N sources. In the case of the compacted soil, 10% of the total N applied in the form of nitrate was emitted, whereas from uncompacted soil this loss was only 0.7%. N2O loss was found to decrease progressively from the time of application of N treatments. Total N2O emission for the three month experimental period ranged from 2.6 to 61.7 kg N2O-N ha-1 for compacted soil and 1.1 to 4.4 kg N2O-N ha-1 for uncompacted soil. In the second field plot experiment, the results of N2O fluxes from treated farm dairy effluent (TFDE), untreated farm dairy effluent (UFDE), treated piggery farm effluent (TPFE) and treated meat effluent (TME) applied to 2m x 1m plots for 'autumn' (February-April) and 'winter' (July-September) are described. Effluent irrigation resulted in higher emissions during both the seasons indicating that the supply of C and N through effluent irrigation contributed to increased N2O emission. The highest emissions were observed from TPFE (2.2% of the applied N) and TME (0.6% of the applied N) during the autumn and winter seasons, respectively. Emissions generated by the TFDE application were the lowest of the four effluent sources but higher than the water and control treatments. The effect of effluent irrigation on N2O emission was higher during the autumn season than the winter season. The effect of key soil and effluent factors such as water filled pore space (WFPS), nitrate, ammonium and available C in soil and effluents on N2O emission was examined using regression equations. The third field plot experiment examined the effect of four TFDE application rates (25mm, 50mm, 75mm and 100mm) on N2O emission. Treatments were added to 2m x 1m plots lined with plastic sheet to restrict the flow of effluent. The N2O emission increased with the increasing effluent loading rate, with the emission ranging from 0.8 to 1.2% of the added N. This can be attributed to the increasing addition of N and C in the soil with the increasing application rate of the effluent. Besides, providing C and N substrates, the effluent application increased the WFPS of the soil, thereby creating conditions conducive for dentrification and N2O emission. A field experiment was conducted at the Massey University No 4 Dairy farm in which N2O emission and related soil and environmental parameters were monitored for two weeks following the TFDE applications over an area of 0.16 ha in September 2003 (21mm), January 2004 (23mm) and February 2004 (16mm). Emissions were measured by a closed chamber technique with 20 chambers for each treatment, in order to cover the variability present in the field. N2O emissions increased immediately after the application of the effluent, and subsequently dropped after about two weeks. The total N2O emitted from the effluent application after the first, second and third irrigation was 2%, 4.9% and 2.5%, respectively of the total N added through the effluent. The higher emission observed during the second effluent irrigation event was due to high soil moisture content during the measurement period. Moreover effluent was applied immediately after a grazing event leading to more N and C input into the soil through excretal deposition. In this experiment the residual effect of effluent application on N2O emission was also examined by monitoring emissions 12 weeks after the effluent application. The emissions from the control and effluent irrigated plots were similar, indicating that there was no residual effect of the effluent irrigation on N2O emissions. In a separate field study, N2O emission was monitored at the Massey University No 4 Dairy farm to examine the effect of a grazing event of moderate intensity on N2O emission. The treatments consisted of a grazed and an ungrazed control. The fluxes from the grazed site were much higher than for the ungrazed site with the total emissions from the former site being 8 times higher than the latter site for the entire experimental period. A modified New Zealand version of denitrification decomposition model (DNDC), a process based model, namely "NZ-DNDC", was used to simulate N2O emission from the TFDE application in the field experiment. The model was able to simulate the emission as well as the WFPS within the range measured in the field. But simulated emissions from the TFDE were slightly lower than measured values. Improvements in the parameterisation for effluent irrigation are likely to further improve the N2O simulations.

Diss. (sammanfattning). Umeå : Sveriges lantbruksuniv. / Härtill 5 uppsatser.

O município de Porto Alegre possui uma única estação de transbordo localizada no bairro Lomba do Pinheiro (Zona Leste) que recebe todo o resíduo sólido urbano (RSU) coletado, que tem como destino final o aterro sanitário localizado em Minas do Leão/RS. Uma parte deste material é triado, com separação de materiais recicláveis que são vendidos às indústrias de reciclagem através de unidades de triagem conveniadas à prefeitura local e material orgânico, que através do processo de compostagem é transformado em composto e comercializado. Foi feito um levantamento de dados relativos aos RSU como: volumes de coleta, quilometragem percorrida pelos caminhões de coleta, custo de equipamentos e áreas disponíveis no município. Após a análise destes dados, constatou-se a possibilidade de otimizar o serviço de coleta e de disposição final. Esta otimização pretende reduzir tanto os impactos ambientais gerados por estas atividades, bem como os custos decorrentes. A criação de uma segunda estação de transbordo, proposta para a área do já enclausurado aterro da Zona Norte, foi a opção que melhor atendeu aos critérios estabelecidos. A nova estação de transbordo apresenta vantagens relacionadas à adoção de novas tecnologias, à economia e a preservação ambiental. A área escolhida para o novo transbordo levou em conta aspectos como: centralidade, área útil disponível e provável facilidade no licenciamento ambiental. Na concepção do novo transbordo sugere-se a instalação de equipamentos compactadores, bem como medidas para maximizar a triagem de resíduos e o conseqüente diminuição de materiais destinados ao aterro sanitário, com conseqüente economia no transporte e aumento da vida útil do aterro. Para a estação de transbordo atual, na Lomba do Pinheiro, sugere-se um aumento na triagem de resíduos e o conseqüente aumento na produção do composto. Estas providências reduzem significativamente a massa de resíduos que diariamente é destinada ao aterro em Minas do Leão. / The city of Porto Alegre has a single transshipment station located in the district of Lomba do Pinheiro (East) that receives all the colleted municipal solid waste (MSW) , which has as final destination the sanitary landfill located in nearby city of Minas do Leão / RS. Part of this waste is separated and the recyclable materials are sold to local recycling industries of recycling through units of selection that have signed agreements with the city authorities. The organic waste goes through the process o composting and then sold. A survey was done on MSW looking at: volumes of collection, milage of the collecting trucks, the cost of equipment and available areas in the county. After analysis of these data, there was the possibility to optimize the service of collection and final disposal. This optimization reduces both the environmental impacts generated by these activities as well as the costs involved. The creation of a second transhipment station in the Northern District sanitary landfill area was the option that best met the established criteria. This new transhipment station has advantages related to the adoption of new technologies, the economy and environmental preservation. The area chosen for the new transshipment station took into account aspects such as: central location, available usefull area and easy environmental licensing. The concept of a new transhipment station suggests the installation of compacting equipments as well as actions to maximize the sorting of waste and the consequent reduction of materials destinated to the landfill with consequent economy in transport and increasing the useful life of the landfill. To the Lomba Pinheiro transshipment station it is suggested an increase in the sorting of waste and the consequent increase in the production of compost. These procedures significantly reduce the mass of daily waste that is destinated to the landfill in Minas do Leão.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The knowledge of soil damage due forest harvest is important for adequate management of soil physical conditions, to increase wood yield and decrease soil degradation. This study evaluates the influence of different operations of forest harvest on the soil physical properties of a typical Hapludalf and an abrupt Hapludalf. The research was realized in areas under 17 years old commercial forest of Pinus taeda. The soil physical properties were evaluated before and after the forest harvest. The treatments, constituted by the different operations of Pinus harvest were as following: before the harvest; after trees cut; after wood dragging with one pass of the skidder; after wood dragging with three passes of the skidder and after removing the wood from storing place (piles). Undisturbed soil samples were taken from layers of 0.00-0.05; 0.05-0.10; 0.10-0.20; 0.20-0.30 and 0.30-0.40m to determine bulk density, microporosity, macroporosity, total porosity, gravimetric soil moisture and saturated hydraulic conductivity. Soil resistance to penetration was evaluated either. To evaluate compressive behavior of soil, undisturbed soil samples were taken from layers of 0.025-0.05m and 0.10-0.125m to determine the bulk density before and after the uniaxial compression test; soil deformation after the test; gravimetric moisture and degree of saturation of soil before the test. The precompression stress and compression index were obtained from compression curves. The soil bulk density of the typic Hapludalf presented biggest reduction after three passes of the skidder, due the superposition of the tractor passes and its pressure during wood dragging. The soil resistance to penetration had the biggest values, indicating the biggest degradation due to the forest harvest. After three steps of the skidder the compaction took place with bigger intensity in the soil surface and that had a uniform distribution in the layers of the soil profile. Before the harvest, after the forest cut, after one step of the skidder and after the wood retreat from shipyard the compaction took place more in the vertical direction. Considering the larger deformations and compression index, the soil should be trafficked with degree of saturation of 65 to 69% to avoid larger deformations and reduce susceptibility of soil to compaction. In the abrupt Hapludalf the soil compaction was smaller. Such a fact was indicated by smaller soil resistance to the mechanical penetration, which indicates a less degree of compaction. The soil saturated hydraulic conductivity was the parameter that better expressed the compaction of the Alfisols. / O conhecimento dos procedimentos envolvidos na colheita florestal, bem como os danos provocados pelo sistema de colheita é importante para se realizar um manejo adequado no solo, melhorar a produção de madeira e reduzir a degradação do solo. O objetivo deste estudo foi avaliar a influência das diferentes operações da colheita florestal nas propriedades físicas de um Argissolo Vermelho Distrófico típico e um Argissolo Vermelho Distrófico abrúptico, considerando que o tráfego das máquinas, geralmente, resulta em impactos no ecossistema, de forma a influenciar a compactação do solo e a produtividade da floresta. A pesquisa foi realizada em áreas sob floresta comercial de Pinus taeda, com 17 anos de idade. Os tratamentos, constituídos pelas diferentes etapas da colheita florestal foram: antes da colheita florestal; após o corte das árvores; após o arraste com uma passada do skidder; após o arraste com três passadas do skidder e após a retirada da madeira do estaleiro. Amostras de solo com estrutura preservada foram coletadas nas camadas de 0,00-0,05; 0,05-0,10; 0,10-0,20; 0,20-0,30 e 0,30-0,40m para determinação da densidade, da microporosidade, da macroporosidade, da porosidade total, da umidade gravimétrica e da condutividade hidráulica do solo saturado. A resistência do solo à penetração foi avaliada até 0,50m de profundidade. No estudo do comportamento compressivo do solo, foram coletadas amostras com estrutura preservada nas camadas de 0,025-0,05m e de 0,10-0,125m, determinando-se a densidade do solo antes e ao final do teste de compressão uniaxial, a deformação ao final do teste, a umidade gravimétrica e grau de saturação antes do teste de compressão e a pressão de preconsolidação e índice de compressão. Os resultados obtidos indicam que no PVd típico, a densidade do solo apresentou maior redução após três passadas do skidder, fato relacionado à sobreposição das passadas e a pressão exercida pela máquina sobre o solo na atividade de arraste da madeira. O solo apresentou os maiores valores de resistência à penetração mecânica, indicando a maior degradação devido à colheita florestal. Após três passadas do skidder a compactação ocorreu com maior intensidade na superfície do solo e essa apresentou uma distribuição uniforme nas camadas do perfil. Antes da colheita, após o corte florestal, após uma passada do skidder e após a retirada da madeira do estaleiro a compactação ocorreu mais no sentido vertical. Considerando a deformação do solo e o índice de compressão, o solo deve ser trafegado com grau de saturação de 65 a 69%, para evitar maiores deformações e reduzir a suscetibilidade à compactação. No Argissolo Vermelho Distrófico abrúptico a compactação do solo ocorreu em menor intensidade. Tal fato foi comprovado pela menor resistência do solo à penetração mecânica, relacionada a uma menor compactação do solo. A condutividade hidráulica do solo foi o parâmetro que melhor expressou a compactação dos Argissolos.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / With the expansion of cultivated forest in Rio Grande do Sul, there was an increase of the forest plantations, now occupying areas previously used for livestock and agricultural crops. The objective was to generate reccomendations for soil tillage, based on soil quality indicators. The study was conducted in three areas for the cultivation of clonal seedlings of Eucalyptus saligna Smith belonging to Celulose Riograndense in the state of Rio Grande do Sul. The soils are classified as Planossolo Háplico Eutrófico gleissólico (SXe), Nitossolo Vermelho Distrófico típico (NVd) and Neossolo Regolítico Eutroúmbrico típico (RReh). Initially a pilot survey was done to quantify the spatial variability of texture and soil resistance to penetration (RP); subsequently, soil samples were taken at depths of 0-10, 10-20, 20-40 and 40-60 cm. After the characterization and analysis of soil areas different soil tillages (subsoiling to 50 cm depth plus rotary hoe (S50), subsoiling to 50 cm depth with ridge (S50C), and subsoiling to 70 cm depth plusr rotary hoe (S70). Planting of Eucalyptus saligna Smith clones (3.5 x 2.6 m) was carried out. At 6, 12, 18 and 24 months after planting, the dendrometric evaluation of total height and diameter at breast height (dbh 1.30 m). The joint use of factor analysis and spatial variability of RP enabled us to identify locations with different compaction states. The least limiting water range (LLWR) was strongly affected by the penetration resistance and soil aeration in clayey soils. The bulk density values of Argissolos, in the larger states of soil compaction, were above the critical density based on the LLWR. The soil tillage with greater volume of soil disturbed (S50C), in SXe (1267.1 m3 ha- 1) and RReh (836.8 m3 ha-1), favored the initial development of Eucalyptus saligna Smith. In SXe at 24 months-old forest, the height was 10.38 cm and dbh of 9.90, whereas for the RReh the height was 10.15 m and dbh of 10.60 cm. In NVd, the highest growth was observed in the treatment S70, with an average height at 24 months of 9.77 m and dbh of 9.68 cm. The results of this study indicate that the choice of the best tillage depends on the texture, degree of compaction, critical density and penetration resistance of the soil. Thus, for Planossolo Háplico Eutrófico gleissólico and the Neossolo Regolítico Eutroúmbrico típico the best tillage was S50C, while for the Nitossolo Vermelho Distrófico típico was S70. / Com a expansão da produção florestal no Rio Grande do Sul, houve aumento na área dos plantios florestais anteriormente dominadas pela pecuária e pelos cultivos agrícolas. O objetivo foi gerar recomendações adequadas de preparo, com base nos indicadores de qualidade. O estudo foi realizado em três áreas destinadas ao cultivo de mudas clonais de Eucalyptus saligna Smith, pertencentes à empresa Celulose Riograndense, nos municípios de São Gabriel e Vila Nova do Sul, no RS. Os solos das áreas estudadas são classificados como Planossolo Háplico Eutrófico gleissólico (SXe), Nitossolo Vermelho Distrófico típico (NVd) e Neossolo Regolítico Eutroúmbrico típico (RReh). Na área de estudo foi feito, inicialmente, um levantamento piloto para observar a variabilidade espacial da textura e da resistência mecânica do solo à penetração (RP); posteriormente, foram realizadas amostragens do solo, nas camadas de 0-10, 10-20, 20-40 e 40-60 cm. Após a caracterização e análise do solo das áreas, foram aplicados diferentes preparos de solo (subsolagem a 50 cm de profundidade mais enxada rotativa (S50), subsolagem a 50 cm de profundidade mais camalhão (S50C) e subsolagem a 70 cm de profundidade mais enxada rotativa (S70)) e, posteriormente, foi realizado o plantio de clones de Eucalyptus saligna Smith (3,5 x 2,6 m). Aos 6, 12, 18 e 24 meses após o plantio, foram feitas as avaliações dendrométricas de altura total e diâmetro à altura do peito (dap 1,30 m). O uso conjunto da análise fatorial e da variabilidade espacial da RP permitiu identificar, locais com diferentes estados de compactação. O intervalo hídrico ótimo (IHO) foi fortemente limitado pela resistência à penetração e pela aeração do solo, nos solos mais argilosos. Os valores de densidade do solo mais Argissolo, nos maiores estados de compactação, foram superiores à densidade crítica com base no IHO. O preparo do solo com maior volume de solo mobilizado (S50C), no SXe (1267,1 m3 ha-1) e no RReh (836,8 m3 ha-1), favoreceu o melhor desenvolvimento inicial do Eucalyptus saligna Smith. No SXe a altura média aos 24 meses de idade foi de 10,38 m e dap de 9,90 cm e, no RReh, a altura foi de 10,15 m e dap de 10,60 cm. No NVd, o maior crescimento foi observado no tratamento S70, com altura média aos 24 meses de idade de 9,77 m e dap de 9,68 cm. Os resultados deste trabalho indicam que a escolha do melhor preparo de solo depende da textura, grau de compactação, densidade crítica e da resistência à penetração do solo. Assim, para o Planossolo Háplico Eutrófico gleissólico e para o Neossolo Regolítico Eutroúmbrico típico o melhor preparo de solo foi o tratamento S50C e, no Nitossolo Vermelho Distrófico típico, foi o tratamento S70.

O presente trabalho apresenta uma análise das características mecânicas do resíduo de construção e demolição (RCD), da Central de Tratamento de Resí-duos de Petrolina/PE, com o objetivo de avaliar o uso de resíduo beneficiado na produção de concretos e na estabilização de solos. Inicialmente, foram realizados ensaios de caracterização do resíduo e dos ma-teriais constituintes do concreto. Em seguida, foram dosados três traços para a produção dos concretos, sendo um traço para o concreto de referência e dois traços para os concretos com substituições de agregado natural por agregado reciclado nas proporções de 50% em um traço e de 100% no outro traço. No total confeccionou-se 15 corpos de prova para cada traço e as mesmas dimen-sões do concreto para referência, totalizando 45 corpos de prova produzidos. Foram realizados ensaios destrutivos (resistência à compressão simples e por tração diametral) e não destrutivos (ultrassom e esclerometria). Também se produziu duas vigas em concreto, um concreto de referência e outro concreto com substituição de 100% do agregado miúdo natural por agregado miúdo re-ciclado para ensaios de flexão em vigas. Posteriormente, foi avaliado o comportamento geotécnico do resíduo para utili-zação como solo em obras de contenção, através de ensaios de granulometria, limites, compactação, CBR e compressão edométrica, sendo ensaiado e avali-ado o comportamento de cada material, o RCD e o solo natural de referência do Alto do reservatório e as incorporações realizadas, nas proporções de 25% de solo mais 75% de RCD (mistura 1), 50% de solo mais 50% de RCD (mistura 2) e 75% de solo mais 25% de RCD (mistura 3). Com os resultados obtidos, foram avaliadas as características físicas e mecâ-nicas dos materiais desta pesquisa, efetuadas as correlações entre os ensaios destrutivos e não destrutivos dos concretos confeccionados e analisado o com-portamento do resíduo para sua utilização como solo em obras de contenção. Pode-se concluir ao final da análise dos resultados que os concretos produzi-dos com resíduos atingem resistências médias, podendo ser utilizados em con-cretos sem função estrutural. E o resíduo para utilização em estabilização de solos pode ser utilizado na construção de rodovias, como material para reforço de subleito, para revestimento primário e sub-base. / This study reviews an analysis of the mechanical characteristics of construction and demolition waste (CDW), a central material recovery facility from Petrolina/ PE, with the objective to evaluate the waste processing to use in the produce of concrete and soil stabilization. Initially, tests were performed to characterize the waste materials and the con-stituents of the concrete. Then, three traits were measured for the production of concrete, with a dash to the reference concrete and two strokes for concrete replacements of natural aggregate by recycled aggregate in the proportions of 50% in one stroke and 100% in the other trait . In total it was made 15 speci-mens for each trait and the same dimensions of the concrete for reference, to-taling 45 specimens produced. Were conducted destructive testing (compres-sive strength and diametral tensile) and nondestructive (ultrasonic and rebound hammer). Also were produced two concrete beams, one reference concrete and other concrete with 100% replacement of natural aggregate by aggregate recy-cled for bending tests on beams. Subsequently, were evaluated the geotechnical behavior of the waste for use as soil containment works through testing particle size, limits, compaction, CBR and edometric being tested and valued the behavior of each material, and the RCD natural ground reference of the Alto do Reservatório and the mergers un-dertaken, in proportions of 25% of soil more 75% of RCD (mixture 1), 50% of soil more 50% of RCD (mixture 2) and 75% of soil and 25% of RCD (mixture 3). With these results, we evaluated the physical and mechanical material of this research, the correlations made between destructive and non-destructive test-ing of concrete made and analyzed the behavior of the waste for use as soil containment works. It can be concluded from the results of the analysis that concretes produced with the waste reaches average resistance, and may be used to produce concrete with non-structural function. And for use in soil stabili-zation, the residue can be used in road construction, as reinforcing material for subgrade, primer coating and the subfloor.