Submitted by Jaqueline Silva (jtas29@gmail.com) on 2014-10-23T20:04:48Z No. of bitstreams: 2 Dissertação - Hiuri Fellipe Santos dos Reis - 2013.pdf: 1601406 bytes, checksum: f2663891a9c0968329f2f913ada41d9e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-10-23T20:05:03Z (GMT) No. of bitstreams: 2 Dissertação - Hiuri Fellipe Santos dos Reis - 2013.pdf: 1601406 bytes, checksum: f2663891a9c0968329f2f913ada41d9e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2014-10-23T20:05:03Z (GMT). No. of bitstreams: 2 Dissertação - Hiuri Fellipe Santos dos Reis - 2013.pdf: 1601406 bytes, checksum: f2663891a9c0968329f2f913ada41d9e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-03-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / In this work we present a study on locally conformally flat gradient steady Ricci solitons which is based on a Huai Dong-Cao and Qing Chen’s article, where they was classified the n-dimensional (n ≥ 3) complete noncompact locally conformally flat gradient steady Ricci solitons. In particular, we prove that a complete noncompact non-flat locally conformally flat gradient steady Ricci soliton is, up to scaling, the Bryant soliton. / Neste trabalho apresentamos um estudo dos sólitons de Ricci gradiente steady localmente conformemente flat, baseado no trabalho de Huai-Dong Cao e Qiang Chen, onde são classificados os sólitons de Ricci gradiente steady n-dimensionais (n ≥ 3), completos, não-compactos e localmente conformemente flat. Em particular provamos que um sóliton de Ricci gradiente steady completo, não-compacto, não-flat e localmente conformemente flat é, a menos de homotetia, o sóliton de Bryant.

Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-05-04T20:17:22Z No. of bitstreams: 2 Dissertação - Maria Francisca de Sousa Gomes - 2017.pdf: 1138083 bytes, checksum: ec11ffa7d803dc5e840f5b216f1aaba3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-05T13:03:10Z (GMT) No. of bitstreams: 2 Dissertação - Maria Francisca de Sousa Gomes - 2017.pdf: 1138083 bytes, checksum: ec11ffa7d803dc5e840f5b216f1aaba3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-05-05T13:03:10Z (GMT). No. of bitstreams: 2 Dissertação - Maria Francisca de Sousa Gomes - 2017.pdf: 1138083 bytes, checksum: ec11ffa7d803dc5e840f5b216f1aaba3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-04-20 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This work is based on [1] and aims to show a result of rigidity for gradient almost Ricci soliton. We will prove that an almost Ricci soliton gradient with nonnegative scalar curvature, where ∇ f is a non-trivial conformal field, is either a Euclidean space R n or the sphere S n . Moreover, we have that, in the Spherical case, the potential function is given by first eigenfunction of the Laplacian. Finally, we will find necessary and sufficient conditions for that a compact locally conformally flat gradient almost Ricci soliton is isometric the sphere Sn. / Este trabalho está baseado em [1] e tem por objetivo apresentar um resultado de rigidez para gradiente quase Ricci soliton. Provaremos que um gradiente quase Ricci soliton com curvatura escalar não-negativa, em que ∇ f é um campo conforme não-trivial, é ou o espaço Euclidiano R n ou a Esfera S n . Além disso, temos que no caso Esférico, a função potencial é dada pela primeira auto função do Laplaciano. Por fim, encontraremos condições necessárias e suficientes para que um gradiente quase Ricci soliton compacto localmente conformemente flat seja isométrico a esfera Sn.

The aim of the thesis is to analyse a legal enviroment about the ownership of a flat in various forms. The goal is to provide the reader with advantages and disadvantages of each of that forms. The thesis is composed of five main chapters. First two chapters are devoted to a short summary of both the cooperative and non-cooperative form of ownership of a flat. After the evaluation of existing legislation in historical context, the following text is focused on fundamental and also application-often problematic legal institutes. View of the academic and judicial community is provided as well. Chapter three analyzes the procedure of transformation of a housing stock after the velvet revolution in 1989, when the economic and political situation has significantly changed and all legal relations has to adopt to new times. This chapter explains the legal way of transferring flats from cooperative to non-cooperative ownership and conditions to be fulfilled. Chapter four compares these forms of ownership on the background of major legal institutes and highligts or warns on the other hand about challenges arising in connection with the appropriate form of ownership. In the last main chapter, several amendments on new legislature are critically assessed, pros and cons are described and some thoughts are pointed out...

The subject of this thesis is a new building primary school. The elementary school is designed for 390 children aged from six to fifteen years. The object is put in the flat terrain of the selected ground in the city called Moravany u Brna. It consists of six interconnected and functionally divided parts. This thesis resolves two selected parts of the elementary school complex. It is a part of physical education and background of upper elementary school. The building has two floors and the main entrances are oriented to the north and east. The building is designed from the system KM BETA. Ceiling structure is made of reinforced concrete.

For more than 50 years attening filters have been inserted into the beam path oflinacs to produce a uniform energy fluence distribution of the photon beam and make it suitable for clinical use. Recently, linacs without flattening fifilter (Flattening FilterFree - FFF) are increasingly used in radiotherapy because of its benefifits, e.g. high dose rate (2000 MU/min), reduced scattered and leakage radiation. Hypofractionated radiotherapy is interested in the high dose rate of FFF beams to shorten the treatment delivery time (TDT) especially the FFF beams have acceptable flatness at small fifieldsizes. Radiotherapy techniques that deliver intensity-modulated beams (IMBs), e.g.Tomotherapy, intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT), deal with the non-uniformity of the FFF beam profifile and produce homogeneous dose to the target as FF beams do. Siemens modified the Artiste linac in order to enable photon beam delivery with and without a flattening fifilter. The VMAT version developed by Siemens for Artiste linacs as a novel radiation technique is a modulated arc therapy (mARC). mARC technique is available with single, double and multiple complete or partial arcs. The aims of the current study were the determination of the main characteristics of 7 MV and 11 MV FFF photon beams in comparison with their corresponding 6 MV and 10 MV FF photon beams from Artiste digital linacs. Furthermore, IMRT planning comparisons using FF and FFF photon beams were performed using an Oncentra planning system. The performance of various mARC techniques were estimated and compared with Step and Shoot (S&S) IMRT by using a RayStation planning system. The mARC plans created by FF and FFF beams were evaluated to know which technique is the best. All the treatment plans were created for simple and complex shaped target volumes. The treatment plans are compared using two parameters - plan quality and treatment effi ciency. In addition to the planning study, the plan quality assurance of IMRT and mARC plans were performed using two difffferent volumetric quality assurance devices, Delta4 and Octavius 4D. Removal of the flattening fifilter causes changes in the dosimetric features of photon beams. IMRT plans with and without flattening fifilter were clinically acceptable where both plans have similar quality. In comparison with IMRT-FF, IMRT-FFF plansrequire more MUs and for some clinical cases require longer TDT. mARC technique can deliver dose distributions that are comparable to S&S-IMRT and could be an alternative with a potential to improve the effi ciency of the IMRT treatment delivery.:Abstract Abbreviation list 1 Introduction 2 Theory 2.1 Linac head configuration 2.2 Flattening fifilter disadvantages 2.3 Flattening fifilter free beams 2.4 Intensity modulated radiation therapy 2.5 Multi leaf collimator 2.6 Step and shoot IMRT 2.7 Dynamic delivery 2.8 Intensity modulated arc therapy 2.9 Modulated arc therapy 2.10 Verification of IMRT and mARC treatment plans 3 Materials and Methods 3.1 Materials 3.1.1 Linear accelerator 3.1.2 Dosimetric tools 3.1.3 Dosimetric verification systems 3.1.4 Treatment planning systems 3.2 Methods 3.2.1 Dosimetric parameters of FF and FFF beams 3.2.2 Comparison of IMRT-FF and IMRT-FFF 3.2.3 mARC planning study 3.2.4 Planning comparison parameters 3.2.5 Dosimetric verification 4 Results 4.1 Dosimetric characteristics of FF and FFF beams 4.1.1 Dose rate 4.1.2 Dose profile 4.1.3 Depth dose curve 4.1.4 Dose in buildup region 4.2 Comparison of IMRT-FF and IMRT-FFF 4.2.1 Plan quality 4.2.2Treatment e ciency 4.3 mARC 4.3.1 Final gantry spacing (F.G.S) 4.3.2 mARC and IMRT 4.3.3 Comparison of mARC 10 MV FF and 11 MV FFF plans 4.3.4 Plan verifications 5 Discussion 5.1 Dosimetric parameters of FF and FFF beams 5.2 IMRT-FF and IMRT-FFF 5.3 mARC Summary Bibliography Selbstandigkeitserklarung Curriculum Vitae Acknowledgement

This dissertation concerns the satirical Flat Earth Society (FES) founded at Fredericton, New Brunswick in November 1970. The essay’s successive chapters examine the lives and literary works of three understudied authors who held leadership positions in this critically unserious, fringe society: FES Symposiarch Alden Nowlan; the Society’s President Leo Ferrari; and its First Vice-President Gwendolyn MacEwen. Therefore, my project constitutes an act of recovery and reconstruction, bringing to light cultural work and literary connections that have largely faded from view. Chapters show how certain literary writings by Nowlan, Ferrari, or MacEwen directly or indirectly relate to their involvement with FES, making the Society an important part of their cultural work rather than a mere entertainment, distraction, or hoax. These authors represent the local/regional inception of FES (Nowlan), its international influences and reach (Ferrari), and its Canadian context (MacEwen). Organized according to three jointly literary and geo-political layers, and drawing on little-known archival documents, each chapter records statements from the Society’s wider membership as they relate to Atlantic Canada, the international perspective, and Canada. Despite its aberrant and oppositional spirit, FES appeared within an identifiable cultural context and participated in a countercultural tradition that continues to this day. The Society’s surface lampoon embeds potent social critique and creative meaning. In other words, FES was not merely playful, nor merely serious, but interweaved these modes in a compelling way; the Society looks by turns intelligent and unintelligible, stupid and sophisticated. Further, it invited contributions from members and applicants: seldom-seen interpretations of “Planoterrestrialism” by individuals from many walks of life and now housed in archives at the University of New Brunswick and University of Calgary. The participatory, humorous, and poetic nature of FES means that its unusual brand of Flat Earthism cannot be tied to any singular ideology, place, or literary tradition. It operates as an enigmatic, errant, itinerant, and underground non-ideology. Planoterrestrial thought is reflected in the playful poetic styles of Nowlan, Ferrari, and MacEwen: three Society members who were nonetheless serious authors and sincere in their role as cultural workers, their Flat Earth antics not excepted. / Graduate

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abstract: The core element of this research paper is an analysis of the B-flat minor prelude and fugue BWV 867. The author’s analysis is then compared with the main contributors to Bach’s analytical studies. An understanding of the work’s structure, together with its motivic and harmonic details, help the performer develop an interpretive approach to the work. Significant Bach scholars, including David Ledbetter and Peter Williams, are used as the source for the additional works to be studied. These scholars also mention close associates of Bach who offer additional insight into his music: Kirnberger and Weiss. The paper includes a brief discussion of the opening chorus fugue BWV 64, instrumental prelude to the cantata BWV 106, chorale prelude BWV 721, and Tombeau sur la Mort de Mr Comte de Logy by Weiss, as they relate to the B-flat minor prelude and fugue. In addition, the analysis provides materials on how the elements of the work relate to the Doctrine of Affections. From the B-flat minor prelude and fugue, the harmonic progressions and figuration are examined from the point of view of the Doctrine. The research also examines the fugue subject, with its unusual leap of a minor 9th, to its structural connection to the opening chorus fugue of BWV 64, and its ties to the Doctrine. Through the analysis of the B-flat minor prelude and fugue and a comparison to works by Bach that are stylistically connected to this work, the author offers insights into the music and its relationship to works that have a sacred text association. / Dissertation/Thesis / Doctoral Dissertation Music 2020

A satellite launch vehicle not subjected to any perturbations, external or internal, could be guided along a trajectory by following a stored, pre-computed steering program. In practice, perturbations do occur, and in order to take account of them and to achieve an accurate injection, a closed loop guidance system is required. Guidance algorithm is developed by solving the optimal control problem. Closed form solution is difficult because the necessary conditions are in the form of Two Point Boundary Value Problems (TBVP) or Multi Point Boundary Value Problems (MPBVP). Development of non-iterative guidance algorithm is taken as a prime objective of this thesis to ensure reliable on-board implementation. If non-iterative algorithms are required, the usual practice is to approximate the system equations to derive closed form solutions. In the present work, approximations cannot be used because the algorithm has to cater to a wide variety of vehicles and missions. Present development adopts an alternate approach by splitting the reconfigurable algorithm development in to smaller sub-problems such that each sub-problem has closed form solution. The splitting is done in such a way that the solution of the sub-problems can be used as building blocks to construct the final solution. By adding or removing the building blocks, the algorithm can be configured to suit specific requirements. Chapter 1 discusses the motivation and objectives of the thesis and gives a literature survey. In chapter 2, Classical Flat Earth (CFE) guidance algorithm is discussed. The assumptions and the nature of solution are closely analyzed because CFE guidance is used as the baseline for further developments. New contribution in chapter 2 is the extension of CFE guidance for a generalized propulsion system in which liquid and solid engines are present. In chapter 3, CFE guidance is applied for a mission with large pitch steering angles. The result shows loss of optimality and performance. An algorithm based on regular perturbation is developed to compensate for the small angle approximation. The new contribution in chapter 3 is the development of Regular Perturbation based FE (RPFE) guidance as an extension of CFE guidance. RPFE guidance can be configured as CFE guidance and FEGP. Algorithms presented up to chapter 3 are developed to inject a satellite in to orbits with unspecified inertial orientation. Communication satellite missions demand injection in to an orbit with a specific inertial orientation defined by argument of perigee. This problem is formulated using Calculus of Variations in chapter 4. A non-iterative closed form solution (Predicted target Flat Earth or PFE guidance) is derived for this problem. In chapter 5, PFE guidance is extended to a multi-stage vehicle with a constraint on the impact point of spent lower stage. Since the problem is not analytically solvable, the original problem is split in to three sub-problems and solved. Chapter 6 has two parts. First part gives theoretical analysis of the sub-optimal strategies with special emphasis to guidance. Behavior of predicted terminal error and control commands in presence of plant approximations are theoretically analyzed for a class of optimal control problems and the results are presented as six theorems. Chapter 7 presents the conclusions and future works.

The master’s thesis deals with the project documentation of a flat building with sweet-shop in Brno - Štýřice. The object is designed as a detached building without basement with four floors. Floor plan of the building is L-shaped, fitted into the equal terrain. In the first floor is a sweet-shop, cellar, stroller storage, waste storage and two flat units. In the other floors are flat units. The structural system is bricks, two-way. The building is covered with a flat roof.