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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avaliação da eficácia da lei de uso e ocupação do solo em São Luís: O caso da Lagoa da Jansen

Teresinha de Medeiros Coelho, Maria January 2002 (has links)
Made available in DSpace on 2014-06-12T16:30:40Z (GMT). No. of bitstreams: 2 arquivo5317_1.pdf: 2919503 bytes, checksum: a79422a20943d9699b7efbb13e0e4d06 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2002 / Numa época marcada pelo rápido crescimento urbano, especialmente visível nas grandes cidades e metrópoles, torna-se necessário uma administração pública com grande capacidade de antecipação e reação ante os desafios que se apresentam diariamente, principalmente os da área social. Para enfrentar esses incontáveis problemas as administrações municipais têm adotado estratégias de planejamento e soluções relacionadas com o uso e ocupação do solo urbano. Entre os vários instrumentos disponíveis, os gestores públicos contam com a legislação urbanísticas para disciplinar o uso e ocupação do solo além de garantir o desenvolvimento da comunidade, e a integração das estruturas física, social, econômica e cultural. Entretanto, esta legislação aparenta não possuir a eficácia necessária para manter os padrões urbanísticos estabelecidos para a cidade. Este trabalho objetiva avaliar o grau de eficácia da lei de uso e ocupação do solo, a qual faz parte da legislação urbanística de São Luís, Capital do Estado do Maranhão, e também contribuir para futuras reflexões sobre estratégias para aperfeiçoar os instrumentos e procedimentos de controle urbano nas cidades brasileiras. Trata-se de um estudo de caso da área urbanizada que circunda a Lagoa da Jansen , Lagoa esta localizada perto do centro histórico e da orla marítima de São Luís, enfocando os usos residencial, comercial e institucional do solo
2

Maurice Ravel violinsonat no 2 sats två, Blues

Press, Alva January 2016 (has links)
I denna studie utförs en närmare analys av Maurice Ravels violinsonat no 2 med fokus på andra satsen, Blues. Det som undersöks är sammanförandet av olika genrer och huruvida Ravels Blues är en autentisk blues, samt hur jag som interpret tolkar verket. I processen av min egen tolkning av verket har jag valt att även analysera Janine Jansens och Sarah Changs interpretationer av andra satsen, för att kunna positionera min tolkning gentemot dem.
3

Diseño e implementación de sistema de potencia para un vehículo monoplaza con mecanismo de Theo Jansen

Lasen Andrade, Matías Alejandro January 2016 (has links)
Ingeniero Civil Mecánico / El presente trabajo de título entrega el diseño completo e implementación de un sistema de potencia instalado en un vehículo con mecanismo de Theo Jansen, construido por estudiantes del curso ME 5601 Diseño de Sistemas Mecánicos el primer semestre del año 2015. La motivación de este trabajo es aplicar los conocimientos teóricos de la ingeniería mecánica, pasando por la concepción de una idea, su diseño, implementación y finalmente su operación. El trabajo comenzó con el análisis del vehículo disponible, en donde se estudia el diseño y sus principales errores y se diseñan soluciones posibles a las fallas encontradas. Posteriormente, se realiza el diseño del sistema de potencia, para esto se comienza estudiando los requerimientos de potencia para el vehículo y se termina con 2 sistemas de potencia: una transmisión derecha y una izquierda, para esto se utiliza un software CAD. Luego, se construyen las mejoras diseñadas y los 2 sistemas de potencia y se instalan sobre el vehículo disponible. Como resultado se tienen los cálculos de respaldo, el modelo CAD de todo el sistema, planos de construcción y el modelo real. Los cálculos de respaldo muestran que todos los elementos comerciales y manufacturados satisfacen las condiciones de operación. El modelo CAD contiene la información de todos los elementos comerciales y manufacturados. Los planos de construcción ofrecen la información de todo lo construido, en su conjunto, despiece y detalle, para su replicación y estudio. La implementación del diseño realizado tardó 4 meses y tuvo un costo aproximado de $450.000, el modelo completo fue operado sin problemas relevantes. Se concluye que es totalmente factible realizar un diseño e implementación de sistemas relativamente novedosos. Por otro lado, la tecnología en sí, como ha sido construida, posee varias limitantes y la superación de ellas puede llevar a aplicaciones concretas, desde la agricultura a transporte en zonas devastadas con superficies complejas.
4

Desempenho agronômico a acúmulo de nutrientes pela planta de jambu / Agronomic performance to accumulation of nutrients by the jambu plant

Souto, Gilberta Carneiro 15 December 2016 (has links)
Submitted by Socorro Pontes (socorrop@ufersa.edu.br) on 2017-07-06T14:07:15Z No. of bitstreams: 1 GilbertaCS_TESE.pdf: 1066935 bytes, checksum: 8520fe73f033ea58ad6602542b23c184 (MD5) / Approved for entry into archive by Vanessa Christiane (referencia@ufersa.edu.br) on 2017-07-18T15:04:42Z (GMT) No. of bitstreams: 1 GilbertaCS_TESE.pdf: 1066935 bytes, checksum: 8520fe73f033ea58ad6602542b23c184 (MD5) / Made available in DSpace on 2017-07-18T15:06:33Z (GMT). No. of bitstreams: 1 GilbertaCS_TESE.pdf: 1066935 bytes, checksum: 8520fe73f033ea58ad6602542b23c184 (MD5) Previous issue date: 2016-12-15 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Jambu is a species from the Northern region of Brazil, where it is widely used in food as a seasoning in typical regional dishes and in folk medicine. The objective of this work was to evaluate the effect of organic fertilizer doses on agronomic performance, nutrient accumulation gait and nutritional demand for jambu. The experiments were carried out in the didactic garden of the Federal Institute of Pará, campus Castanhal, during the periods of January and February of 2015 and of May and June of 2015, in soil classified as Yellow Latosol, dystrophic, of medium texture. The treatments consisted of the combination of two accessions of jambu (Purple Flower and Yellow Flower) and six doses of organic fertilizer (0, 2, 4, 6, 8, and 10 kg m-2). The experimental design was in randomized blocks, in a 2 x 6 factorial scheme, with four replications. The best agronomic performance of the jambu was obtained with the application of 10 kg m-2 of the organic fertilizer, with higher productivity in the cultivation carried out from May to June 2015. The access Yellow flower was more productive in relation to the Purple flower. The access Yellow flower was more productive in relation to the Purple flower. The decreasing order of nutrients accumulated by the jambu plant was potassium> nitrogen> calcium> magnesium> phosphorus, with period of higher growth and nutrient demand from 18 to 34 days after transplanting (DAT) for access 'Purple flower' and 26 To 42 DAT for 'Yellow Flower' / O jambu é uma espécie da região Norte do Brasil, onde é largamente utilizada na alimentação como tempero em pratos típicos regionais e na medicina popular. O presente trabalho teve como objetivo avaliar o efeito de doses de adubo orgânico no desempenho agronômico, na marcha de acúmulo de nutrientes e na demanda nutricional de acessos de jambu. Os experimentos foram conduzidos na horta didática do Instituto Federal do Pará, campus Castanhal, nos períodos de janeiro e fevereiro de 2015 e de maio e junho de 2015, em solo classificado como Latossolo amarelo, distrófico, de textura média. Os tratamentos consistiram da combinação de dois acessos de jambu (Flor roxa e Flor amarela) e seis doses de adubo orgânico (0, 2, 4, 6, 8, e 10 kgm-2). O delineamento experimental foi em blocos casualizados, em esquema fatorial 2 x 6, com quatro repetições. O melhor desempenho agronômico do jambu foi obtido com a aplicação de 10 kg m-2 do adubo orgânico, com maior produtividade no cultivo realizado de maio a junho de 2015. O acesso Flor amarelo foi mais produtivo em relação ao Flor roxa. A ordem decrescente dos nutrientes acumulados pela planta de jambu foi potássio > nitrogênio > cálcio > magnésio > fósforo, com período de maior crescimento e demanda de nutrientes de 18 a 34 dias após o transplantio (DAT) para o acesso ‘Flor roxa’ e 26 a 42 DAT para ‘Flor amarela / 2017-07-06
5

Ana Jansen: emprendedorismo feminino no século XIX

Novaes, Irlane Regina Moraes 16 July 2012 (has links)
Submitted by IRLANE REGINA NOVAES (irlaneregina@hotmail.com) on 2012-09-28T14:35:27Z No. of bitstreams: 1 Tese FGV.pdf: 3223523 bytes, checksum: 24035bdcb02ebdb8a47a87db33d2451b (MD5) / Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2012-10-01T15:27:56Z (GMT) No. of bitstreams: 1 Tese FGV.pdf: 3223523 bytes, checksum: 24035bdcb02ebdb8a47a87db33d2451b (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2012-10-01T18:56:59Z (GMT) No. of bitstreams: 1 Tese FGV.pdf: 3223523 bytes, checksum: 24035bdcb02ebdb8a47a87db33d2451b (MD5) / Made available in DSpace on 2012-10-01T18:57:08Z (GMT). No. of bitstreams: 1 Tese FGV.pdf: 3223523 bytes, checksum: 24035bdcb02ebdb8a47a87db33d2451b (MD5) Previous issue date: 2012-07-16 / A tese Ana Jansen: Empreendedorismo feminino no século XIX teve como objetivo investigar como Ana Jansen manifestou sua capacidade empreendedora e adminis-trativa no contexto tradicionalmente patriarcal, predominante no Maranhão no início do século XIX. Para tanto, tornou-se necessário Identificar os aspectos sócio-econômicos brasileiro e maranhense, caracterizar os aspectos relacionados ao em-preendedorismo no Brasil, contextualizar o papel da mulher no século XIX e analisar a atuação de Ana Jansen na administração, política, economia e na sociedade maranhense. Para concretização do estudo utilizou-se a pesquisa bibliográfica, documental e de campo. Os métodos utilizados foram à historiografia e a análise de conteúdo. Os dados levantados foram analisados através do modelo de análise adaptado dos ensinamentos de Quivy e Campenhoudt (2008), onde foram identificados os conceitos, as dimensões operacionais e indicadores indispensáveis para apresentação dos resultados. Após a análise, constatou-se que o empreendedorismo de Donana passou a ser manifestado a partir das reações do seu contexto sendo que Ana Jansen soube perceber essas mudanças criando sua própria forma de ganhar e multiplicar o seu capital.
6

Hrabě František Antonín Špork - zastánce myšlenek jansenismu a náboženské tolerance / Count Franz Anton Spork - a representative of Jansenism and of the religions tolerance

Langer, Marketa January 2013 (has links)
The present M. A. theses COUNT FRANZ ANTON SPORCK - SUPPORTER OF JANSENISM THOUGHTS AND RELIGIOUS TOLERANCE deals with Baroque period, the so called "Bohemian Baroque" in the 17th - 18th century, and ends at the beginning of the Enlightenment. On the main representatives of the Czech lands was Count Franz Anton Sporck. The first chapter looks at the emergence of the movement of Jansenism, founded by Cornelius Otto Jansen, and mentions the root movement within the environment of the University of Leuven. Cornelius Otto Jansen influenced French Jansenism which had been led by Jean-Antoine Duvergier de Hauranne (First Abbe de Saint-Cyran) at the monastery of Port-Royal des Champs, and a major French personality of the movement. The other major figures were Martin de Barcos, Antoine Arnauld, Blaise Pascal and Pasquier Quesnel, who were influenced by the Jansenism environment in the Czech lands. At the same time, the first chapter focuses on the Jesuit Order, which acts as a counterpoint to the same idea of Catholic reform during the time of post Trident. In the second chapter, the personalities of Czech Jansenism - Valerian Magni and Jerome Hirnhaim are introduced. This chapter deals with the central figure of the thesis, Count Franz Anton Sporck, who became the most significant personality of the Czech Catolic...
7

Aplicação dos mecanismos de locomoção do tipo Jansen em cadeiras de rodas / Application of the locomotion mechanisms type Jansen in wheelchairs

Borges, José Salviano 09 March 2016 (has links)
Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-06-21T18:17:08Z No. of bitstreams: 2 Dissertação - José Salviano Borges - 2016.pdf: 59885367 bytes, checksum: 3df4277939769ca93ed44eee88f1bf84 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Cláudia Bueno (claudiamoura18@gmail.com) on 2017-07-07T19:56:31Z (GMT) No. of bitstreams: 2 Dissertação - José Salviano Borges - 2016.pdf: 59885367 bytes, checksum: 3df4277939769ca93ed44eee88f1bf84 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-07-07T19:56:31Z (GMT). No. of bitstreams: 2 Dissertação - José Salviano Borges - 2016.pdf: 59885367 bytes, checksum: 3df4277939769ca93ed44eee88f1bf84 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-09 / Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG / To enlarge the active participation of individuals with disabilities in society, some mechanisms have been developed, such as crustches and wheelchairs. Wheelchairs are widely used, either temporarily or even permanently, allowing greater mobility and independence of the individual. However, the same is subject to the physical limitations of the wheels, requiring regular and hard grouynd to ensure bettermobility. Thus, some studies have suggested repacing the wheels on the legs, since the same part of the evolutionary process allows many terrestrial animals and viable movement to the wheels. The mechanisms with legs given the name of mobile machines. Among the most famous mobile machines are developed by the dutch phisicist Theo Jansen, called by Strandbeest. This study evaluates the repacement of the wheels of wheelchairs, for legs, trying to extend its use in less regular land. Also shown is the pattern of locomotion strcture developed by Jansen and the development of the Jansen similar structure using multiobjective optimizationmethods in order to ensure a new optimum configuration, and obtain a prototype proposed to be coupled in a conventional wheelchair. During the work it is proposed the method of wighted sumwith Pareto, this method related to onedimensionalyzation objectives. It also presents a brief comparison with two other methods –Weihted Sumand Pareto Ordination. / Para ampliar a participação ativa de indivíduos com deficiência na sociedade, alguns mecanismos foram desenvolvidos, como muletas e cadeiras de rodas. As cadeiras de rodas são bastante utilizadas, seja temporariamente ou até mesmo permanentemente, permitindo uma maior mobilidade e independência do indivíduo. Contudo, a mesma encontra-se sujeita às limitações físicas das rodas, necessitando de terrenos regulares e rígidos para garantir uma melhor locomoção. Assim, alguns estudos sugeriram a substituição das rodas por pernas, uma vez que as mesmas fazem parte do processo evolutivo demuitos animais terrestres e permite movimentos inviáveis para as rodas. Os mecanismos dotados de pernas receberam o nome de máquinas móveis. Dentre as máquinas móveis mais famosas encontram-se as desenvolvidas pelo físico holandês Theo Jansen, denominadas por Strandbeest. Este trabalho avalia a substituição das rodas das cadeiras de rodas por pernas, procurando ampliar a sua utilização em terrenos menos regulares. É apresentado também o modelo da estrutura de locomoção desenvolvida por Jansen, além do desenvolvimento de uma estrutura similar à de Jansen, utilizando métodos de otimização multiobjetivo com o intuito de se garantir uma nova configuração ótima, obtendo uma proposta de protótipo a ser acoplado em uma cadeira de rodas convencional. Durante o trabalho propõe-se o método da Soma Ponderada com Pareto, método este relacionado à unidimensionalização de objetivos. Apresenta-se também uma breve comparação com outros dois métodos - Soma Ponderada e Ordenação de Pareto.
8

The Changing Morphology Of Urban Greenways, Ankara, 1923-1960

Burat, Sinan 01 August 2008 (has links) (PDF)
Despite the abundance of descriptive studies on the urban development plans of Ankara, analytical studies on specific features of these plans, especially on implementation and modification processes are scarce. This study examines the green space structure brought in Jansen&rsquo / s 1932 development plan of Ankara, the way it was implemented and the modifications that a component of this structure was subject to. The 1932 Jansen plan is a holistic and comprehensive plan that contained a conceptual green space structure, integrated with other public uses and social facilities. An in depth evaluation of Jansen&rsquo / s 1928 and 1932 plans is made and a typology of the components of the green space structure is formed. It is found that the plan principles and the components of the green space structure of Jansen&rsquo / s plan for Ankara are perfectly congruent with German planning approach and principles of the time. From the analysis of the plan modifications of the G&uuml / ven Park- Tandogan Greenway a typology of modifications is developed. It is argued that the 1933 and 1957 development laws and regulations lacked definitions for realizing and sustaining the green space types proposed by Jansen, which consequently lead to their modifications. In reality the land ownership status, &ldquo / h&acirc / l&icirc / arazi&rdquo / , under which the greenways of Jansen plan were placed, illustrates the difficulty of translating these spatial categories into the Turkish legislative framework. In this respect, this study is an attempt to provide a contribution to the study of green spaces in relation with the implementation of development plans.
9

Investigations on Dynamics and Control of a Rimless Wheel Based 2D Dynamics Walker using Pulsed Torque Actuation

Patnaik, Lalit January 2014 (has links) (PDF)
Wheeled systems are energy efficient on prepared surfaces like roads and tracks. Legged systems are capable of traversing different terrains but can be lossy. At low speeds and on off-road surfaces, legged systems using dynamic walking can be energy efficient. Towards this objective, the dynamics of the walker needs to be modelled and controlled. In addition, the braking and ground impact losses need to be minimized. This thesis presents analysis and experiments on the dynamics and control of a rimless-spoked-wheel based mobile robot (Chatur ∗) that belongs to a category between wheeled and legged systems. This rolling rimless wheel is effectively a 2D dynamic walker that serves as a platform for investigating the dynamics and energetics of inverted pendulum walking with constant step angle. A pulsed actuation torque is proposed for the system resulting in four torque regimes defined by the ratio of energy losses to available actuator torque. Five physical constraints that impose fundamental limits on the choice of operating points of a generic inverted pendulum walker are expounded and a method for locating optimal operating points is discussed. Chatur’s hardware design is elaborated and a control topology is proposed for pulsed actuation of the dual brushless dc (BLDC) motor driven platform with wheel synchronization. Various actuator torque profiles can be used to achieve dynamic ‘walking’ in a hub-actuated rimless wheel. The proposed pulsed actuation torque gives rise to four torque regimes that achieve sustained walking and a fifth regime where the walker keeps slowing down with each step. The regimes can be identified based on the fraction of stance phase for which the actuator is energized. Theoretical analysis and experimental results are presented. A simple closed-form analytical solution, using hyperbolic functions, is proposed for the stance phase inverted pendulum dynamics considering planar motion. Ground impacts are assumed to cause abrupt drop in velocity. A constant braking torque that lumps together the effect of several loss phenomena is also considered. Based on whether the CoM is rising or falling and whether or not there is an actuating torque, a stance phase can have four types of sub-phases — actuated rise, unactuated rise, actuated fall, unactuated fall. These are concatenated in four different ways to form repeating cycles yielding the four regimes. The experimental set-up is a fixed step-angle walker constructed using two synchronized adjacent rimless wheels independently actuated at the hub. Varying the magnitude and duty ratio of the torque pulse, the four proposed regimes are experimentally shown. The mechanical power consumption and cost of transport are computed from measured motor currents for different average forward speeds. Videos of the walks are also taken. The space of operating points for an inverted pendulum based bipedal dynamic walker in terms of constraints and optimality is investigated. The operating point of the walker can be specified by the combination of initial mid-stance velocity (v0) and step angle (φm) chosen for a given walk. Not all operating points lead to a realizable steady-state gait. Using basic mechanics, a framework of physical constraints that limit the choice of operating points is proposed. The constraint lines thus obtained delimit the valid region of operation of the walker in the v0–φm plane. Within this allowable region, sub-regions that result in various regimes of walking are identified. A given average forward velocity vx,avg can be achieved by several combinations of v0 and φm. Only one of these combinations results in the minimum mechanical power consumption and can be considered the opti-mum operating point for the given vx,avg. A method is proposed for obtaining this optimal operating point based on tangency of the power and velocity contours. Putting together all such operating points for various vx,avg, a family of optimum operating points, called the optimal locus, is obtained. For the energy loss and internal energy models chosen, the optimal locus obtained has a largely constant step angle with increasing speed but tapers off at non-dimensional speeds close to unity. Thus, choosing the right step angle and keeping it fixed over a broad range of speeds could lead to an inverted pendulum walker that is close to optimal from a mechanical energy perspective. The complete hardware design for Chatur and the caveats associated with reliable performance of the mechanical and electrical subsystems are elaborated. In order to en-sure lateral stability, the system uses two contralateral wheels each driven by a separate BLDC hub motor. From a motor drive perspective, the mechanical load belongs to a unique class of dynamic loads whose reflected torque has a characteristic cyclic varia-tion that repeats several times within a mechanical revolution. The proposed control topology has two hierarchical levels, an inner loop for torque control of BLDC motor implemented using a standard proportional-integral controller, and an outer loop for torque reference generation that uses the information on the ground impact instants and the motor position feedback. Ground impacts of the spokes are detected by an accelerometer to initiate the application of torque. The torque pulse magnitude can be set internally or by a manual operator via radio control. The pulse duration is programmable and enables attainment of various torque regimes at different steady state speeds. The wheels are synchronized so that corresponding spokes on both wheels move in unison. This is achieved by including a wheel synchronization loop that compensates for any lag between the wheels. Lag is detected based on number of sector changes in the hall-effect position sensor data received from both motors. An improved BLDC motor drive is developed wherein non-commutating current feedback is used to reduce current spikes during sector transitions. Experimental waveforms for controller validation are shown.

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