Made available in DSpace on 2017-06-01T18:24:49Z (GMT). No. of bitstreams: 1 jose_reginaldo_gomes_santana.pdf: 1156556 bytes, checksum: 0b6e039c12ecc7392f3cd578a6c7cb5f (MD5) Previous issue date: 2013-08-30 / The discourses concerning the vocal technique, the regional traditions and the different ways of singing are inserted in an identity affirmation perspective. The very existence of these discourses in the academic environment results in conflicts between the technical discourses concerning the singing voice usage in specific subjects in the Music Degree course. In order to set the path of this study, the following specific objectives were determined: the analysis of the discourses concerning the singing voice inside the academic environment; the analysis of characteristic affirmations that may point the speaker's point of view about the established way of singing by the traditional erudite singing technique, and analyzing in the teacher's discourses characteristic affirmations that may define their point of view about the academic's opinion discourses and in the afterthought and decision making processes during the learningteaching process. Concepts and theories regarding the voice production(Travassos); imaginary formation, discursive formations and the theoretical and methodological basis of discourse analysis by the French school proposed by Michel Pêcheux notions, the identity as a movement in history and the incompletion of the discourse, subject and meaning notions, proposed by Eni Orlandi were recurred into. The empirical corpus for this research was constituted through the procedure of semi structured interviews of 6(six) academics and 2(two) teachers from the referred course. The discursive facts were analyzed through the scope of the discourse analysis by the French school. As for the discourse functioning, characteristic affirmations regarding the singing voice compared to the given as correct established way of singing by the traditional erudite singing technique and other traditions were identified; the existence of debates that generated opposite opinions in some points and agreement in other points, and discursive stances on such discourses by the academics attending the subjects regarding the production of singing voice. This research opens way to further possibilities of research in the process of construction of the musical knowledge, as well as new questionings about this subject matter in the AD. / Os discursos em defesa da técnica vocal, da tradição regional e das diferentes maneiras de produção da voz cantada se inserem na perspectiva da afirmação de uma identidade. A existência desses discursos no ambiente acadêmico acarreta conflitos com os discursos técnicos relacionados à utilização da voz cantada em determinadas disciplinas do curso de Licenciatura em Música. Esta pesquisa tem como objetivo geral analisar os discursos acadêmicos sobre a voz cantada no curso de Licenciatura em Música de uma instituição superior. A fim de se delimitar o norte deste estudo, foram estabelecidos os seguintes objetivos específicos: analisar os discursos sobre a voz cantada que circulam no ambiente acadêmico; analisar, nos discursos acadêmicos, afirmações identitárias que posicionam o sujeito frente ao modo estabelecido de cantar pela tradição erudita da técnica vocal e do canto; e analisar, nos discursos dos docentes, afirmações identitárias que os posicionem na relação com os discursos de identidade dos acadêmicos e na reflexão e tomadas de decisão no processo de ensino-aprendizagem. Recorreu-se a conceitos e teorias relativos à produção de voz (Travassos); às bases teóricas e metodológicas da Análise do Discurso da linha francesa proposta por Michel Pêcheux, dando-se ênfase às noções de formações imaginárias e de formações discursivas; às noções de identidade como movimento na história e a incompletude do discurso, sujeito e sentidos, propostas por Eni Orlandi. O corpus empírico para este trabalho foi constituído através da realização de entrevistas semiestruturadas com 6 (seis) discentes e 2 (dois) docentes do referido curso. Os fatos discursivos foram analisados sob a luz da análise do discurso da linha francesa. Quanto ao funcionamento do discurso, foram identificadas afirmações identitárias sobre a voz cantada frente ao modo estabelecido como correto pela tradição erudita e outras tradições; a existência de embates que geravam contraidentificações por parte de algumas posições e identificação por parte de outras; e posições discursivas a esses embates por parte dos docentes das disciplinas ligadas à produção da voz cantada. Este trabalho abre para outras possibilidades de pesquisa no processo de construção do conhecimento musical, como também novos questionamentos sobre o tema na AD.

The work is focused on the construction of the multifunctional building in the atypical-shaped corner area on Burian Square in Brno. The house has four floors above the ground and one underground floor. The architectural design was created according to the requirements of the city-part authority - enlarge the city road and maximize the usability of the whole parcel.

Project have for purpose propose acceptable technology for manufacturing corner fitting by compound tool. Corner fitting is made from steel sheet 11 321.1 thickness 1,5 mm in production set 600 000 pieces in a year. Was select variant with manufacturing compound tool, which make to part on four steps on automatized manufacturing line. This line includes press about power press 1000 kN, feeding and levelling serving and containing rewinder. In economic results are calculated costs production of a piece, final costs and break-even point which is coming after production 216 049 pieces.

abstract: The objective of this work is to design a novel method for imaging targets and scenes which are not directly visible to the observer. The unique scattering properties of terahertz (THz) waves can turn most building surfaces into mirrors, thus allowing someone to see around corners and various occlusions. In the visible regime, most surfaces are very rough compared to the wavelength. As a result, the spatial coherency of reflected signals is lost, and the geometry of the objects where the light bounced on cannot be retrieved. Interestingly, the roughness of most surfaces is comparable to the wavelengths at lower frequencies (100 GHz – 10 THz) without significantly disturbing the wavefront of the scattered signals, behaving approximately as mirrors. Additionally, this electrically small roughness is beneficial because it can be used by the THz imaging system to locate the pose (location and orientation) of the mirror surfaces, thus enabling the reconstruction of both line-of-sight (LoS) and non-line-of-sight (NLoS) objects. Back-propagation imaging methods are modified to reconstruct the image of the 2-D scenario (range, cross-range). The reflected signal from the target is collected using a SAR (Synthetic Aperture Radar) set-up in a lab environment. This imaging technique is verified using both full-wave 3-D numerical analysis models and lab experiments. The novel imaging approach of non-line-of-sight-imaging could enable novel applications in rescue and surveillance missions, highly accurate localization methods, and improve channel estimation in mmWave and sub-mmWave wireless communication systems. / Dissertation/Thesis / Masters Thesis Electrical Engineering 2019

It is estimated that nearly two in three people will live in urban areas by 2045. The city is increasingly seen as a place of opportunity. It has become a receptacle for new social, cultural and economic strata. The urban environment is converted and mutated by everyday public performances. This condition becomes evident when the street is inhabited as a space that connects the workplace, the home and institutions. The built wall often attracts and establishes these new activities.It is here that conventional architectural typologies are challenged. This dissertation explores the notion of the wall in an attempt to reconfigure the sidewalk. A conceptual network of interfaces that contain infrastructure, public services and urban armatures is proposed. Within this context, it is argued that architecture should support these everyday performances as well as define a new spatial identity, within the urban environment. / Dissertation MArch(Prof)--University of Pretoria, 2012. / Architecture / MArch(Prof) / Unrestricted

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Radar plays a major role in safety-critical applications mainly in the automotive industry due to its weather and lighting independence. The progress made in radar hardware technology has made it possible to detect objects more efficiently. Autonomous vehicles need to address a lot of problems encountered in their pathways which need proper detection and identification of obstacles for navigation purposes. Detection and identification of obstacles during navigation help in defining the trajectories for a vehicle so that collision can be avoided. A 77GHz radar system is used in many automotive industrial vehicles for automotive safety. At any given time, there is a possibility of multiple objects being in the vicinity of a vehicle that is not highly reflective which is based on its materialistic properties, such as prams or bicycles as compared to other road vehicles. In the work described in this thesis, we aim at designing, detecting, and identifying simple radar reflectors using copper sheets, which can be placed on such low reflective objects which helps in increasing pedestrian safety aspects. The software aspect of the radar module being used is achieved by using a demo application provided by the radar module manufacturer. This acts as the base structure for the python script which is used for detection and identification of the radar reflectors.

<div>Many Engineering structures, including electronic component assemblies, are inherently multi-scale in nature. These structures often experience complex local nonlinear behavior such as plasticity, damage or fracture. These local behaviors eventually lead to the failure at the macro length scale. Connecting the behavior across the length scales to develop an understanding of the failure mechanism is important for developing reliable products.</div><div><br></div><div>To solve multi-scale problems in which the critical region is much smaller than the entire structure, an iterative solution approach based on domain decomposition techniques is proposed. Two independent models are constructed to model the global and local substructures respectively. The unbalanced force at the interface is iteratively reduced to ensure force equilibrium of the overall structure in the final solution. The approach is non-intrusive since only nodal values on the interface are transferred between the global and local models. Solution acceleration using SR1 and BFGS updates is also demonstrated. Equally importantly, the two updates are applied in a non-intrusive manner, meaning that the technique is implemented without needing access to the codes using which the sub-domains are analyzed. Code- and mesh-agnostic solutions for problems with local nonlinear material behavior or local crack growth are demonstrated. Analysis in which the global and local models are solved using two different commercial codes is also demonstrated.</div><div><br></div><div>Engineering analysis using numerical models are helpful in providing insight into the connection between the structure, loading history, behavior and failure. Specifically, Isogeometric analysis (IGA) is advantageous for engineering problems with evolving geometry compared to the traditional finite element method (FEM). IGA carries out analysis by building behavioral approximations isoparametrically on the geometrical model (commonly NURBS) and is thus a promising approach to integrating Computer-Aided Design (CAD) with Computer-Aided Engineering (CAE).</div><div><br></div><div>In enriched isogeometric Analysis (EIGA), the solution is enriched with known behavior on lower dimensional geometrical features such as crack tips or interfaces. In the present research, enriched field approximation techniques are developed for the application of boundary conditions, coupling patches with non-matching discretizations and for modeling singular stresses in the structure.</div><div><br></div><div>The first problem solution discussed is to apply Dirichlet and Neumann boundary conditions on boundary representation (B-rep) CAD models immersed in an underlying domain of regular grid points. The boundary conditions are applied on the degrees of freedom of the lower dimensional B-rep part directly. The solution approach for the immersed analysis uses signed algebraic level sets constructed from the B-rep surfaces to blend the enriched</div><div>field with the underlying field. The algebraic level sets provide a surrogate for distance, are non-iteratively (or algebraically) computed and allow implicit Boolean compositions.</div><div><br></div><div>The methodology is also applied to couple solution approximations of decomposed patches by smoothly blending incompatible geometries to an arbitrary degree of smoothness. A parametrically described frame or interface is introduced to “stitch” the adjacent patches. A hierarchical blending procedure is then developed to stitch multiple unstructured patches including those with T-junctions or extraordinary vertices.</div><div><br></div><div>Finally, using the EIGA technique, a computational method for analyzing general multimaterial sharp corners that enables accurate estimations of the generalized stress intensity factors is proposed. Explicitly modeled geometries of material junctions, crack tips and deboned interfaces are isogeometrically and hierarchically enriched to construct approximations with the known local behavior. specifically, a vertex enrichment is used to approximate the asymptotic field near the re-entrant corner or crack tip, Heaviside function is used to approximate the discontinuous crack face and the parametric smooth stitching technique is used to approximate the behavior across material interface. The developed method allows direct extraction of generalized stress intensity factors without needing a posteriori evaluation of path independent integrals for decisions on crack propagation. The numerical implementation is validated through analysis of a bi-material corner, interface crack and growth of an inclined crack in a homogeneous solid. The developed procedure demonstrates rapid convergence to the solution stress intensity factors with relatively fewer degrees of freedom, even with uniformly coarse discretizations.</div>

A house is situated into a newly designed urban structure, witch we devised in our previous lessons in studio. The project aslo includes a new Mendel’s squar design nearby the house location. The house is a corner vacant in the Křížová Street. The house is thought to contain flats for young people and families due to its location. Most of the apartments are maisonettes. The house has become a tenement house with courtyard galleries because this is typical for this place. The concept of the house is based on the rotation of one wing of the house away from the noisy street with a lot of traffic and trams. There is created a place with many opposite courtyard galleries and apertures. The concept also devides a part of the house facing the street into two main distinct sections. There is a yard with a garden between the two wings of the house and the inhabitants will be able to relax there. The building is higher than an opposite gabled house and it also responds to a corner gabeld house in the Mendel’s squar. The house will be a new dominant in the crossroad among Vaclavcká street, Křížová street and Křídloviská street. There are coffe to go, fitness center and other commercial premises in the ground floor and the first floor. There are 30 flats (including 22 maisonettes) with an avarage area of 67 square meters and 70 parking places in underground garage.

The place has a unique location - in between Stare Brno, where the city originated, and the historical city centre. Its triangular shape is defined by two adjoining streets, a vibrant and ancient Pekarska and much younger Anenska. It is also a kind of transition between the big noble city and a shabby, yet fairy area. The design seeks to create a complex of buildings that react to these specific features and add a new layer to the city. The first decision was to enclose this heterogeneous area. Thus a clear structure is defined in regard to both streets as well as their junction. Due to its specific location, the site is built on intensively, yet without exceeding the overall height level of the area. The mass on the north side goes gradually down and the corner forms a firm figure. In the less important street, the scale of the objects becomes smaller, thus interacting with its surroundings. The re-created St. Anna lane acts as a contemporary link between these two worlds. Moreover, it is possible to climb up from there to a public garden on the hill. Functionally, apartment buildings prevail. The corner block serves as offices and there are shops on the ground level. The lane is lined with small studios for artists and craftsman, thus giving the area a unique character.