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Caracterização morfológica, química e físico-hídrica de neossolos regolíticos no agreste meridional de PernambucoALMEIDA, Alison Van Der Linden de 08 July 2014 (has links)
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Previous issue date: 2014-07-08 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / In the meridional agreste of Pernambuco, the Regolithic Neosoil are used in various agricultural activities, which includes the production of beans. The productive potential of these soils may be different between the municipalities of occurrence due to the physicalhydric behavior exhibited by these soils, or the occurrence of lamellae in some areas, which may contribute to greater production. The objective of this study was to investigate the morphological, chemical and hydro-physical characteristics of Regolithic Neosoil located in the meridional agreste of Pernambuco in order to understand the behavior of water in these soils. Morphological, physical, chemical, water, mineralogical and micromorphological attributes of three profiles, being P1 (Caetés), P2 (Paranatama) and P3 (São João) were analyzed. Lamellae were found in horizons C1 and C2 of P3, which may be related to an increase in water retention profile. The morphological and chemical characteristics showed no differences to justify a differential productive bean between profiles. The micromorphology and hydric study showed that P3 has greater capacity to retain water, better distribution of pore diameters, and has a porosity and packaging material that promotes increased water retention than P1 and P2, mainly in C2 horizons and C4. The characteristics of P3 make this profile presents a higher yield potential than the profiles P1 and P2. / No Agreste Meridional de Pernambuco os Neossolos Regolíticos são utilizados em diversas atividades agrícolas, onde se destaca a produção de feijão. O potencial produtivo desses solos pode ser diferente entre os municípios de ocorrência em virtude do comportamento físico-hídrico apresentado por esses solos, ou pela ocorrência de lamelas em algumas áreas, que podem contribuir para uma maior produção. Objetivou-se no presente estudo analisar as características morfológicas, químicas e físico-hídricas de Neossolos Regolíticos localizados no Agreste Meridional de Pernambuco com a finalidade de se entender o comportamento da água nesses solos. Foram analisados os atributos morfológicos, físicos, químicos, hídricos, mineralógicos e micromorfológicos de três perfis, sendo P1 (Caetés), P2 (Paranatama) e P3 (São João). Foram encontradas lamelas nos horizontes C1 e C2 do P3, que podem estar ligadas a um aumento da retenção de água nesse perfil. Os atributos morfológicos e químicos não mostraram diferenças que justificassem um diferencial produtivo de feijão entre os perfis. O estudo hídrico e micromorfológico mostrou que o P3 apresenta maior capacidade de retenção de água, melhor distribuição dos diâmetros de poros, além de possuir uma porosidade e empacotamento do material que favorece uma maior retenção de água que os P1 e P2, principalmente nos horizontes C2 e C4. Essas características do P3 fazem com que esse perfil apresente um maior potencial produtivo que os perfis P1 e P2.
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Příprava vzorků nanostruktur v SEM/FIB a jejich studium v transmisním elektronovém mikroskopu / Preparation of nanostructure samples in SEM/FIB and their study in TEMLavková, Jaroslava January 2012 (has links)
This work is studying the layers of cerium oxide (doped with platinum) prepa- red by magnetron sputtering on different types of substrates. Attention is focused mainly on modes of growth and morfology of (Pt−)CeO2 layers. The study was carried out by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The specimens (lamellas) were created by using focused ion beam (FIB) with respect to transparency for electron beam and material contrast. The emphasis was on elimination of redeposition and minimize the amorphous layer of lamella. Representation of elements was determined by energy-dispersive spectroscopy (EDX) and electron-energy loss spectroscopy (EELS). 1
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Židle pro hudebníka v etapě prototypuTvrzníková, Pavla January 2019 (has links)
In this diploma thesis the author follows up on her previous bachelor thesis and makes improvement of earlier functional model of a chair for particular musician. It was intended for banjo and similar instruments playing. The aim of this thesis is to eliminate some problems, which appeared at the functionel model, and to solve the technical part of the production. The output of this thesis are materials for serial production. The basic design of the letter X is still the same. It is possible to fold the chair and transport it like that. The aim of this work is also to improve details of the chair and unite it´s design. The result of this thesis is the foldable chair made primarily of beech veneer materials.
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Zkoušení pevnosti spoje lamelovaných hranolů pro výrobu okenHála, Marek January 2014 (has links)
The first part of the diploma thesis deals with modern glued lamellar prisms for the production of windows, doors and their combination. The procedure of the euro balks production is the essential part of the work. Furthermore, the thesis focuses on the characterization of the wood modification, above all thermally modified wood which is currently used in practice. Moreover, at the present new modified material known as the wood treated by acetylation (Accoya). The practical part deals with the assessment of the bonded lamellar prisms' quality and rigidity. Next examination is devoted to two types of glue (PVAC, PUR).The prisms with two directions of the fibres in the middle layer were tested. The timber from the tangential and semi-radial direction was used for the middle layers. The conclusion if the produced prisms meet the requirements and satisfy the quality class for the window and door production, is included in the discussion.
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Avaliação da influência de variáveis na produção de batentes de painel EGP de Pinus taeda / Evaluation of the influence of variables in the production of door frame of Edge Glued Wood Panel of Pinus taedaDias, Romulo Rezende [UNESP] 19 February 2016 (has links)
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Previous issue date: 2016-02-19 / O uso de madeira de pinus na construção civil é cada vez maior e saber trabalhar suas características, vantagens e desvantagens é essencial para o sucesso do produto. O presente trabalho tem por objetivo estudar a influência da largura das lamelas e do arranjo físico dos anéis de crescimento em painéis de madeira de Pinus taeda coladas lateralmente (EGP) utilizados na fabricação de batentes, seguindo as exigências da ABNT-NBR 15.930 (2011), a fim de determinar a melhor combinação para o melhor desempenho físico do produto. Para tanto, trabalhou-se com o fatorial completo para dois fatores e quatro níveis, sendo i. largura das lamelas de 32 mm, 56 mm, 75 mm e 112mm; e ii. arranjo dos anéis: lamelas radias, lamelas tangenciais, lamelas cruzadas e lamelas com emendas de topo tipo finger joint. Os 48 corpos de prova (03 para cada combinação) de batente de EGP com 2120 x 220 x 32mm, com teor de umidade entre 8% e 12% e densidade aparente entre 400 kg.m-3 e 600 kg.m-3 foram produzidos numa indústria madeireira da cidade de Sengés/PR. Utilizou-se a análise estatística de variância (ANOVA) para investigar a influência dos fatores e suas interações nas seguintes respostas: aspecto visual, variação da umidade, variação da densidade, variações dimensionais de largura e espessura e desvios de forma (empenamento: encurvamento, arqueamento e encanoamento). Os resultados mostraram que os dois fatores e suas interações exerceram influência com nível de significância de 1% sobre os desvios de forma. Os melhores resultados foram para painéis produzidos com lamelas de 32 mm e 56 mm, com arranjo cruzado ou radial. As demais respostas não foram influenciadas de forma significativa pelos fatores e suas interações. / The use of pine wood is increasing and for the success of its products it is essential to have the know-how to work its features, advantages and disadvantages. The objective of this study is to evaluate the influence of batten widths and the physical arrangement of growth rings in Edge Glued Panel of Pinus taeda used in the manufacture of door frames, according the requirements of ABNT-NBR 15.930 (2011) to determine the best combination for better physical performance of the door frame. Experimental tests considered the full factorial method using two factors and four levels, with batten widths of 32mm, 56mm, 75mm and 112mm; and arrangement of the growth rings: radial, tangential, crossed and plates with top amendments type finger joint. The 48 samples (03 from each combination), with 2120 x 220 x 32 mm, with a moisture content between 8% and 12% and an apparent density between 400 kg.m-3 and 600 kg.m-3 were produced in a wood factory in Sengés/PR/Brasil. The statistical analysis of variance (ANOVA) was used to investigate the influence of the factors and their interactions in the following responses: visual appearance, moisture content variations, density variations, dimensional variations in width and thickness and deviations in shape (warping: bending, curving and curling). The results showed that both factors and their interactions exerted influence with a significance level of 1% on the deviations of form. The best results were to EGP produced with batten widths of 32 mm and 56 mm, with radial or crossed arrangement. The factors and their interactions did not significantly influence the other answers.
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Adolf Loos.Visiones del lujo en la arquitecturaBruns Banegas, Sergio 05 October 2015 (has links)
[EN] "Luxury" has always been a cause for debate throughout history. It was criticized by Plato and Aristotle and limited during the times of the old Roman Empire. However, luxury has now become a natural part of our lives. The change in the meaning of luxury represents the step from the ancient world to the modern world, and the step from feudalism to capitalism, becoming associated to new values:
01_ The value of the private sphere and the individual. The step from the ancient world to the modern world also entails the step from public luxury to private luxury.
02_ The emotional value of luxury. Our desires and imagination lead us towards new desires. As the value of something which is intangible.
03_ The value of the superfluous. This would be a luxury which does not provide any added value.
04_ The material value. The material value is closely linked to the emotional value of luxury, as it isn't so much about the cost of the material, but about the shapes and sensations which are obtained with it.
05_ The value of refinement. The qualitative value of luxury, which leads towards the evolution of societies.
06_ The value of innovation. Throughout history luxury has been the promoter of innovations. Technique has played a vital role in architecture, giving rise to new spatial possibilities.
The thesis looks into the values associated to luxury, identifying them in the architecture of Adolf Loos aiming to represent a modern vision of luxury.
The similarities in the biographies of Adolf Loos and Peter Zumthor (central European architects, both sons of artisan fathers, influences by their time spent in the United States,...) justify the choice the latter as a modern reference in the research, which establishes a link between said vision from the early 20th century and the architecture of the early 21st century. This proves how these values remain current even today, although logically their transfer to architecture is different.
Lastly comparing this modern vision of luxury with contemporary visions of luxury by means of different conversation. The aim is to move away from the prejudice associated to luxury to prove how architecture can go beyond what is necessary with the aim of improving the living conditions of the inhabitant. / [ES] El "lujo" ha sido siempre motivo de debate a largo de la historia. Ya fue criticado por Platón y Aristóteles y limitado en la antigua Roma. En el presente, el lujo se ha integrado de forma natural en nuestras vidas. El cambio del significado del lujo representa el paso del mundo clásico al mundo moderno, y el paso del feudalismo al capitalismo1, asociándole nuevos valores:
01_ El valor de la esfera privada y el individuo. El paso del mundo clásico al mundo moderno implica también el paso del lujo público al lujo privado.
02_ El valor emocional del lujo. Los deseos e imaginaciones llevan a nuevos deseos. Se trata del valor de lo intangible.
03_ El valor de lo superfluo. Se trata de aquel lujo que no aporta ningún valor añadido.
04_ El valor material. El valor material está íntimamente ligado al valor emocional del lujo, pues no se trata tanto del coste del material, sino en las formas y sensaciones que con él se consiguen.
05_ El valor del refinamiento. Se trata del valor cualitativo del lujo, que lleva a evolucionar a las sociedades.
06_ El valor de la innovación. El lujo ha sido a lo largo de la historia impulsor de innovaciones. La técnica ha jugado un papel vital, dando lugar a nuevas posibilidades espaciales.
La Tesis investiga los valores asociados al lujo, identificándolos en la arquitectura de Adolf Loos para mostrar una visión moderna del lujo.
Las similitudes en las biografías de Adolf Loos y Peter Zumthor (arquitectos de Europa Central, ambos hijos de padres artesanos, influenciados por sus vivencias en Estados Unidos,¿) justifican la elección de este último como un referente contemporáneo en la investigación, que establece un nexo entre dicha visión de principios del siglo XX y la arquitectura de principios del siglo XXI. Así se demuestra como dichos valores permanecen vigentes hoy en día, aunque lógicamente su traslación a la arquitectura sea diferente.
Finalmente se contrasta esta visión moderna del lujo con las visiones contemporáneas del lujo mediante diferentes conversaciones. Se trata de alejarse de los prejuicios sobre el lujo para demostrar como la arquitectura puede ir más allá de lo necesario con el fin de mejorar las condiciones de vida del habitante. / [CA] El "luxe" ha estat sempre motiu de debat al llarg de la història. Ja fou criticat per Plató i per Aristòtil i limitat a l'antiga Roma. En el present, el luxe s'ha integrat de forma natural en les nostres vides. El canvi de significat del luxe representa el pas del món clàssic al món modern, i el pas del feudalisme al capitalisme , associant-li nou valors:
01_ El valor de l'esfera privada i l'individu. El pas del món clàssic al món modern implica també el pas del luxe públic al luxe privat.
02_ El valor emocional del luxe. Els desitjos i imaginacions porten a nous desitjos. Es tracta del valor de l'intangible.
03_ El valor del superflu. Es tracta d'aquell luxe que no aporta cap valor afegit.
04_ El valor material. El valor material està íntimament lligat al valor emocional del luxe, doncs, no es tracta tant del cost del material, sinó en les formes i sensacions que amb ell s'aconsegueixen.
05_ El valor del refinament. Es tracta del valor qualitatiu del luxe, que porta a evolucionar a les societats.
06_ El valor de la innovació. El luxe ha estat al llarg de la història impulsor d'innovacions. La tècnica ha jugat un paper vital, donant lloc a noves possibilitats espacials.
La Tesi investiga els valors associats al luxe, identificant-los en l'arquitectura d'Adolf Loos per a mostrar una visió moderna del luxe.
Les similituds en les biografies d'Adolf Loos i Peter Zumthor (arquitectes d'Europa Central, tots dos fills de pares artesans, influenciats per les seves vivències als Estats Units, ...) justifiquen l'elecció d'aquest últim com un referent contemporani en la recerca, que estableix un nexe entre aquesta visió de principis del segle XX i l'arquitectura del segle XXI. Així es demostra com aquests valors romanen vigents avui en dia, encara que lògicament la seva translació a l'arquitectura sigui diferent.
Finalment es contrasta aquesta visió moderna del luxe amb diferents versions contemporànies del luxe mitjançant diferents converses. Es tracta d'allunyar-se dels prejudicis sobre el luxe per a demostrar com l'arquitectura pot anar més enllà del necessari amb la finalitat de millorar les condicions de vida de l'habitant. / Bruns Banegas, S. (2015). Adolf Loos.Visiones del lujo en la arquitectura [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/55503 / TESIS / Premios Extraordinarios de tesis doctorales
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Studie realizovatelnosti výroby hliníkových dílů ve společnosti Alfa / Feasibility study of aluminium parts manufacturing at Alfa companyHonzálek, Petr January 2015 (has links)
This thesis is dedicated to a study of manufacturing of aluminum parts at Alfa company. A complete analysis of the company's main product which are roller doors for commercial vehicles is elaborated. The thesis is based on a existing operation of the company and tries to find the optimal solution for the future. The result is the definition of a new solution and determination it’s operating costs, economic impacts and suggestions for improvement. Key words roller door, aluminum profiles, slat, roller shutter, manufacturing of aluminum parts.
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Vliv diferenciace exodermis na lokalizaci příjmu živin v kořeni / Effect of exodermis differentiation on nutrient uptake localization in rootJanoušková, Jana January 2018 (has links)
Plants are able to cope with changing environmental conditions or withstand its adverse effects due to their plastic development. One way to adapt to fluctuating amounts of nutrients and water in the environment or the presence of toxic substances is to regulate the movement of substances between the plant and the environment. Beside other, this regulation is also possible at the level of the root system, by the formation of apoplastic barriers endodermis and exodermis. Some species posses endodermis only, in others exodermis in hypodrermal layers of the root can be found. These barriers differentiate in three stages and prevent free movement of coumpounds though apoplast. The transport to the symplast is the key point of regulating the uptake of substances into the plant and the endodermis is the fundamental structure. The presence of exodermis, however, affects the apoplast permeability of the surface root layers and can therefore influence the involvement of the primary cortex cells in the uptake of substances from the environment. In this work the impact of phosphate deficiency on the formation of apoplastic barriers was studied focusing on exodermis and the effect of its differentiation on the occurrence of membrane transporters and involvement of primary cortex cells in the uptake of...
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Zvýšení brzdného účinku mokrých diskových brzd / Increase the braking effect of wet disc brakesFalta, Martin January 2014 (has links)
This Master´s thesis deals with construction design of break system of the tractor Zetor Forterra HSX. At the beginning, there is an overview of different possibilities breaking system from other world´s producers of tractors. Afterwards there is constructional working from selection variant of suspension to final project. In this case the thesis contains required calculations of the whole device. Thesis also contains the stress and strain analysis of selected components of construction using a numerical approach of finite element method and drawing documentation of the selected components.
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Aquapark / AquaparkVincour, Jan January 2014 (has links)
Object of Diploma thesis is the structural design of a load bearing structure of the aquapark in the Brno area. The main structure is designed as lamella arch on the cylindrical surface with one curvature with 30 m span and 4.5 m camber. The structural material is glue-laminated timber with inner steel plate joints.
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