Made available in DSpace on 2014-06-11T19:29:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-08-30Bitstream added on 2014-06-13T20:39:18Z : No. of bitstreams: 1 neris_cn_me_ilha.pdf: 211601 bytes, checksum: 1936fe17e661a255e13dc764933e734d (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O amendoinzeiro (Arachis hypogaea L.) tem o tripes do prateamento Enneothrips flavens como praga limitante à sua produção. O controle desse inseto atualmente é realizado com inseticidas convencionais, entretanto, a integração de táticas de controle poderá proporcionar uma solução mais estável e duradoura para o controle desta praga na cultura. Este trabalho teve por objetivo estudar o efeito de cultivares, espaçamentos e modos de aplicação de inseticidas sobre o tripes do prateamento E. flavens e seus reflexos na produção do amendoinzeiro. Os experimentos foram conduzidos na Fazenda de Ensino, Pesquisa e Extensão - FEPE/UNESP, localizada no município de Selvíria-MS. O primeiro experimento foi instalado na época da seca com semeadura realizada em 17/02/2004, no delineamento em blocos casualizados, com parcelas subdivididas, num esquema fatorial 2x2x4 representado por espaçamentos (0,70 e 0,90 m entre linhas), cultivares de crescimento rasteiro (IAC-Caiapó e Tégua) e modos de aplicação de inseticidas (1- granulado no solo + 8 pulverizações foliares; 2- tratamento de sementes; 3- 9 pulverizações foliares e 4- testemunha, sem controle). O segundo experimento foi instalado na época das águas com semeadura em 23/11/2004, no delineamento em blocos casualizados, com parcelas subdivididas, num esquema fatorial 2x2x3 representado por espaçamentos (0,70 e 0,90 m entre linhas), cultivares de crescimento rasteiro (IAC-Caiapó e IAC-886) e modos de aplicação de inseticidas (1-tratamento de sementes + 5 pulverizações foliares; 2- 6 pulverizações foliares e 3- testemunha, sem controle). Nas avaliações foram realizadas contagens de adultos e de ninfas do tripes em 10 folíolos fechados ou semi-abertos por parcela; para avaliar os sintomas de injúrias causadas pelos tripes no limbo foliar, utilizou-se uma escala visual de... / The peanut (Arachis hypogaea L.) has the silvery thrips Enneothrips flavens as the limiting pest of yield. Nowadays, the control of this insect is accomplished with conventional insecticides, however the integration of control taticals will be able to provide a stable and lasting solution for the control of this pest in the culture. This work has the goal of studying the effect of cultivars, spacings and insecticides application manners on the population of silvery thrips E. flavens, and its reflexes on yield. The experiments were conducted in the Fazenda de Ensino, Pesquisa e Extensão - FEPE/UNESP, located in the Selvíria-MS. The first experiment was installed at that time of the drought with sowing accomplished in 17/02/2004, in the design in randomized blocks, with subdivided plots, in the factorial outline 2x2x4 represented by spacings (0,70 and 0,90 m between lines), groundnut growth cultivars (IACCaiapó and Tégua) and insecticides application manners (1- granulated in the soil + 8 leaf insecticide applications; 2- seeds treatment; 3- 9 leaf insecticide applications and 4-control, without control). The second experiment was installed at the time of waters with sowing accomplished in 23/11/2004, in the design in randomized blocks, with subdivided plots, in the factorial outline 2x2x3 represented by spacings (0,70 and 0,90 m between lines), groundnut growth cultivars (IAC-Caiapó and IAC-886) and insecticides application manners (1-seeds treatment + 5 leaf insecticide applications, 2- 6 leaf insecticide applications and 3-control, without control). In the evaluations, thrips adults and nymphs were counted in 10 leaflets closed or half-open for plots; to evaluate the injury symptoms caused by thrips in the leaf blade it was used visual scale of notes from 1 to 9. The peanut yield was evaluated in 4 m of the two central lines... (Complete abstract, access undermentioned electronic address)

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-03-02T12:33:44Z No. of bitstreams: 1 marianaschuchtersoares.pdf: 7400842 bytes, checksum: 4cb8abc2b3ce27e2eb13deabaf439714 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-03-03T14:49:59Z (GMT) No. of bitstreams: 1 marianaschuchtersoares.pdf: 7400842 bytes, checksum: 4cb8abc2b3ce27e2eb13deabaf439714 (MD5) / Made available in DSpace on 2016-03-03T14:49:59Z (GMT). No. of bitstreams: 1 marianaschuchtersoares.pdf: 7400842 bytes, checksum: 4cb8abc2b3ce27e2eb13deabaf439714 (MD5) Previous issue date: 2013-04-05 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objetivo deste trabalho é discutir o apagamento dos traços língua-cultura-identidade alemães em Juiz de Fora/MG. A partir de pesquisa etnográfica, com a realização de entrevistas semi-estruturadas, bem como de pesquisa documental, procuramos, com o aporte teórico da Ecolinguística (MUFWENE, 2001, 2008; COUTO, 2007, 2009), explorar e refletir sobre os possíveis aspectos ecológicos que podem ter influenciado esse apagamento linguístico-cultural na cidade, em meio ao processo de adaptação dos imigrantes à nova terra. O que acreditamos, portanto, é que esse apagamento se deu através de um processo longo e gradual, influenciado por vários fatores, inclusive pela hegemonia da língua portuguesa. Tal situação mostra-se bastante oposta ao que aconteceu em outras regiões do país, em que há visíveis marcas das variedades de língua alemã em seus dialetos (BORSTEL, 2011; PEREIRA, 2005), bem como heranças culturais dos imigrantes. Nesse sentido, este trabalho tem os seguintes objetivos principais: (i) identificar quais variedades de língua alemã chegaram em Juiz de Fora/MG; (ii) rastrear a história dos contatos linguísticos que aconteceram na cidade; (iii) identificar fatores ecológicos que possivelmente tiveram influência no processo de apagamento das variedades de língua alemã em Juiz de Fora/MG. Dessa forma, buscamos demonstrar que os imigrantes alemães foram levados a (re)construírem suas identidades, deixando para trás, ao longo do tempo, suas origens e, consequentemente, suas heranças linguístico-culturais. / The aim of this study is to discuss the deletion of German language, culture and identity traces in Juiz de Fora city, Brazil. By means of ethnographic research, with semi-structured interviews, as well of documental research, and on Ecolinguistics theoretical basis (MUFWENE, 2001, 2008; COUTO, 2007, 2009), we investigate and reflect on the possible ecological aspects that influenced this linguistic and cultural deletion in the city during the adaptation process of the immigrants to the new land. Therefore, we believe that this deletion happened as a long and gradual process, influenced by several factors, including the hegemony of Portuguese language. Such a situation is quite different from what happened in other parts of Brazil, where there are visible marks of German varieties in their dialects (BORSTEL, 2011; PEREIRA, 2005), as well as many cultural heritages from the immigrants. In this sense, this work has the following main objectives: (i) to identify which varieties of German language arrived in Juiz de Fora; (ii) to trace the history of the linguistic contacts that took place in the city; (iii) to identify ecological factors that possibly influenced the deletion process of the varieties of the German language that arrived in Juiz de Fora. Thus, this study demonstrates how German immigrants German immigrants were taken to (re)construct their identities, leaving behind their origins and hence their linguistic and cultural heritages over time.

Many industries including the medical, aerospace, and automobile industries have increasingly adopted the use of shape memory alloys (SMAs) for a plethora of applications due to their unique thermomechanical properties. From the commercially available SMAs in the market, binary NiTi SMAs have shown the most desirable properties. However, SMA properties can be significantly affected by the fabrication process. One of the most familiar applications of NiTi SMAs is in the design of actuating devices where the shape memory effect properties are highly advantageous. Spring NiTi SMA actuators are among the most commonly used and are generally made by torsion loading a straight wire. Consequently, stress concentrations are formed causing a reduction in recovery force. Other methods for producing springs and other NiTi SMA components is the fast emerging manufacturing method of additive manufacturing (AM). AM often uses metal powders to produce the near-net shape components. A major challenge for SMAs, in particular, is their well-known composition sensitivity. Therefore, it is critical to control composition in NiTi SMAs. In this thesis, a novel method for processing NiTi SMAs for pre-alloyed NiTi SMA powders and springs is presented. A low pressure and low temperature hydriding-pulverization-dehydriding method is used for preparing the pre-alloyed NiTi SMA powders with well-controlled compositions, size, and size distributions from wires. By hydrogen charging as-drawn martensitic NiTi SMA wires in a heated H3PO4 solution, pulverizing, and dehydriding, pre-alloyed NiTi powders of various well-controlled sizes are produced. In addition, a low pressure and low temperature hydriding-dehydriding method is used for producing NiTi SMA helixes from wires. The helix pattern in the pre-alloyed NiTi SMA wires was obtained by hydrogen charging NiTi SMA 500 μm diameter wires at different time intervals, followed by dehydriding to remove the hydrogen. The wires, powders, and resulting helixes were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and x-ray diffraction (XRD). The relationship between the wire diameter, powder particle size, and helix geometry as a function of hydrogen charging time is investigated. Lastly, the recovery behavior due to the shape memory effect is also investigated after dehydriding.

Inadequate financial allocation for road maintenance is a threat to the impaired rural highways in Atlantic Canada. The conventional means of pavement rehabilitation has been to place a hot mix asphalt concrete overlay on the existing worn out pavement which is only a short term adjustment. The purpose is to provide a smooth wearing surface at a low cost. This traditional way of pavement repair does not fix the damage embedded within the pavement structure. After a certain extent of time the cracks in the original pavement start to reflect to the smooth new wearing surface, causing deterioration on the overlay. The advanced approach which is becoming more popular is the application of Full Depth Reclamation (FDR). This technique helps to repair the extensively defective roads by pulverizing the flexible pavement along with a fraction of the underlying damaged base layer. Thus a damage free base layer can be obtained by stabilizing and recompacting the pulverized materials. FDR is a sustainable and an environmentally beneficial repair method as it re-uses the in-situ materials. FDR process has been used around the world for over 25 years yet confronts some difficulties regarding the fluctuation in the strength of materials in various projects. It is inferred that some of these difficulties are due to the variability and poor quality in the restored materials. The variability in the recycled base layer is a result of currently utilizing a retroactive depth control method to attain a specific blend of asphalt concrete to granular base for the pulverized materials. Two FDR projects applying two different pulverization control methods (conventional retroactive and GPR depth control methods) were analyzed to investigate the improvements in consistency of the restored materials by using Ground Penetrating Radar (GPR). A wide range of asphalt concrete/base layer blend ratio was detected in retroactive control section, while consistent blend ratio was maintained in GPR survey by mapping the variability in the depth of pavement and sub-dividing the test sections accordingly. A GPR controlled constant blend ratio during pulverization displayed improvements in consistency of materials, physical and mechanical properties and performance as anticipated. The materials obtained by using the conventional retroactive depth control method exhibited higher variability in grain size distribution, optimum moisture content, optimum density, California Bearing Ratio, resilient modulus and shear strength. All materials from both projects exhibited excessive air voids and inadequate fines content as the as-obtained particles acted as conglomerated particles and enough fines were not generated after the pulverization. It is recommended that efficient quality control, precise specifications and appropriate pulverization methods will provide more reliable and impressive FDR pavements. / This thesis contains research on unstabilized full depth reclaimed aggregates properties