This work focusses on the advances of organic light-emitting diodes (OLEDs) for large area display and solid-state-lighting applications. OLED technology has matured over the past two decades, aided by the rapid advances in development of the novel material and device concepts. State-of-the-art OLEDs reach internal efficiencies of 100% and device lifetimes acceptable for commercial display applications. However, further improvements in the blue emitter stability and the device performance at the high brightness are essential for OLED technology to secure its place in the lighting market. As the current passing through the device increases, a rapid decrease in OLED efficiency, so-called efficiency roll-off, takes place, which hinders the use of OLEDs wherever high brightness is required. In addition, white OLEDs comprising multiple emitter molecules suffer from the emission colour change as the operating conditions are varied or as the devices age. Despite side-by-side structuring of the monochrome OLEDs could in principle circumvent most of bespoke issues, the limitations imposed by the shadow mask technique, employed to structure vacuum deposited films, renders such approach impractical for fabrication of the devices on a large scale. In order to address these issues, photolithographic patterning of OLEDs is implemented. Highly efficient state-of-the-art devices are successfully structured down to tens of micrometers with the aid of orthogonal lithographic processing. The latter is shown to be a promising alternative for the shadow mask method in order to fabricate the full-colour RGB displays and solid-state-lighting panels. Photo-patterned devices exhibit a virtually identical performance to their shadow mask counterparts on a large scale. The high performance is replicated in the microscale OLEDs by a careful selection of functional layer sequence based on the investigation of the morphological stability and solubility of vacuum deposited films. Microstructured OLEDs, fabricated in several different configurations, are investigated and compared to their large area counterparts in order to account for the observed differences in charge transport, heat management and exciton recombination in bespoke devices. The role of the Joule heat leading to the quenching of the emissive exciton states in working devices is discussed. Structuring the active OLED area down to 20 micrometer is shown to improve the thermal dissipation in such devices, thus enabling the suppression of the efficiency roll-off at high brightness in white-emitting electroluminescent devices based on side-by-side patterned OLEDs. / Die vorliegende Arbeit beschäftigt sich mit den neusten Errungenschaften von organischen Licht-emittierenden Dioden (OLEDs) für großflächige Beleuchtungs- und Displayanwendungen. Die OLED-Technologie hat sich in den letzten zwei Jahrzehnten, begünstigt von neuartigen Material- und Bauteilkonzepten, weit entwickelt. Im aktuellen Stand der Technik erreichen OLEDs sowohl interne Effizienzen von 100% als auch Lebensdauern die für die kommerzielle Nutzung in Displays ausreichend sind. Nichtsdestotrotz sind weitere Verbesserungen für die Stabilität blauer Emitter und die Leistungsfähigkeit bei hohen Leuchtstärken erforderlich, damit die OLED Technologie ihren Platz auf dem Markt behaupten kann. Mit steigender Stromstärke, die durch ein solches Bauteil fließt, sinkt die Effizienz rapide (der sogenannte Effizienz-Roll-Off), was die Nutzung von OLEDs verhindert, wann immer hohe Leuchtstärken erforderlich sind. Zusätzlich verändern weiße OLEDs ihre Farbkomposition durch die unterschiedliche Alterung der unterschiedlichen Emittermoleküle oder veränderte Einsatzbedingungen. Obwohl die laterale Strukturierung nebeneinander aufgebrachter, monochromer OLEDs diese Probleme umgehen könnte, ist diese Herangehensweise durch die aktuelle Schattenmasken-Technologie limitiert, welche zur Strukturierung vakuumprozessierter Dünnschichten eingesetzt wird, und somit unpraktikabel für die Massenproduktion. Um diese Problemstellungen zu umgehen, wird hier die photolithographische Strukturierung von OLEDs angewendet. Mithilfe der orthogonalen Lithographie können hocheffiziente Bauteile damit erfolgreich auf Größenordnungen von 10 Mikrometer strukturiert werden. Dies zeigt, dass die orthogonale Prozessierung eine vielversprechende Alternative für die Schattenmasken-Technologie darstellt und für die Herstellung von RGB-Displays und Beleuchtungspanelen geeignet ist. Photostrukturierte Bauteile zeigen dabei eine nahezu identische Leistungsfähigkeit zu solchen, die großffächig mittels Schattenmasken hergestellt wurden. Diese hohe Leistungsfähigkeit kann hierbei durch eine sorgfältige Auswahl der einzelnen funktionellen Schichten erreicht werden, welche auf Untersuchung von morphologischer Stabilität und Löslichkeit dieser Schichten basiert. Mikrostrukturierte OLEDs in verschiedenen Konfigurationen werden mit ihren großflächigen Gegenstücken verglichen, um beobachtete Abweichungen im Ladungstransport, der Wärmeverteilung, sowie der Exzitonenrekombination zu erklären. Die Rolle der Joule'schen Wärme, die zur Auslöschung der emittierenden Exzitonenzustände führt, wird hier diskutiert. Die thermische Dissipation kann dabei verbessert werden, indem die aktive Fläche der OLED auf 20 Mikrometer herunterstrukturiert wird. Folglich kann der Effizienz-Roll-Off bei hohen Leuchtstärken in lateral strukturierten weißen elektrolumineszenten Bauteilen unterdrückt werden.

Submitted by Timbo Noeme (noeme.timbo@metodista.br) on 2016-08-08T17:58:28Z No. of bitstreams: 1 Renata Toledo Reis.pdf: 1609716 bytes, checksum: 0ef0b359086f968f893067961f41419d (MD5) / Made available in DSpace on 2016-08-08T17:58:28Z (GMT). No. of bitstreams: 1 Renata Toledo Reis.pdf: 1609716 bytes, checksum: 0ef0b359086f968f893067961f41419d (MD5) Previous issue date: 2015-08-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The several theories about the capital structure motivate many studies on this subject, however without meeting a consensus. Other topic not much explored refers to the organization’s life cycle, and how it can influence in the capital structure. This study had as main objective to verify which determinants are the most relevant for the borrowing process in the companies and understand if these determinants change depending on the life cycle, supported by the theories Trade off, Pecking order and Agency’s Theory. In order to achieve the objective was used the analysis of fixed effect panel and Brazilian listed companies have been chosen as sample, finally the study was also based in secondary data available in the Economatica® between 2005 and 2013 using sections from BM&F and BOVESPA. The main result stands the same behavior among the general sample, high and low growth for accounting debt for determining Profitability presenting a negative relationship, and the determinants Growth Opportunity and size, with such a positive relationship. For high groups and some low growth determinants showed different results, such as the uniqueness resulting significance in these two groups, with positive growth in low and negative in the high growth, the collateral value of assets and non-debt tax relief were significant only in low-growth group. For the debt at market value was observed significance for the tax benefit not debt and Singularity. This result reinforces the argument that the life cycle influence the capital structure / As várias teorias acerca da estrutura de capital despertam interesse motivando diversos estudos sobre o assunto sem, no entanto, ter um consenso. Outro tema aparentemente pouco explorado refere-se ao ciclo de vida das empresas e como ele pode influenciar a estrutura de capital. Este estudo teve como objetivo verificar quais determinantes possuem maior relevância no endividamento das empresas e se estes determinantes alteram-se dependendo do ciclo de vida da empresa apoiada pelas teorias Trade Off, Pecking Order e Teoria da Agência. Para alcançar o objetivo deste trabalho foi utilizado análise em painel de efeito fixo sendo a amostra composta por empresas brasileiras de capital aberto, com dados secundários disponíveis na Economática® no período de 2005 a 2013, utilizando-se os setores da BM&FBOVESPA. Como resultado principal destaca-se o mesmo comportamento entre a amostra geral, alto e baixo crescimento pelo endividamento contábil para o determinante Lucratividade apresentando uma relação negativa, e para os determinantes Oportunidade de Crescimento e Tamanho, estes com uma relação positiva. Para os grupos de alto e baixo crescimento alguns determinantes apresentaram resultados diferentes, como a singularidade que resultou significância nestes dois grupos, sendo positiva no baixo crescimento e negativa no alto crescimento, para o valor colateral dos ativos e benefício fiscal não dívida apresentaram significância apenas no grupo de baixo crescimento. Para o endividamento a valor de mercado foi observado significância para o Benefício fiscal não dívida e Singularidade. Este resultado reforça o argumento de que o ciclo de vida influência a estrutura de capital

The nucleic acid determination in biological samples has been essential in the last decades for many analytical processes, such as polymerase chain reaction (PCR), genotyping, clinical diagnosis, genetically modified organism determination in food ingredients, fetal DNA maternal blood test, forensic applications and others. Absorbance measurements in the UV-vis region are frequently employed for nucleic acid quantifications. Nevertheless, the results are often approximated and measurement accuracy is limited. Thus, this work presents a low-cost and simple method for DNA and/or RNA determination employing Thioflavin T (TT) by molecular fluorescence. The reaction mechanism consists of the interaction of TT and DNA or RNA. This mechanism is based on the off-on concept in which the free TT in solution shows low fluorescence but when interacts with the nucleic acid there is a rotation restriction in the TT molecule, becoming rigid, which allows the alignment of π orbitals and consequently increases its fluorescence intensity. After the addition of DNA, TT showed a redshift (bathochromic effect) in the molecular absorption spectra, indicating that there is interaction with the macromolecule. Experimental conditions were optimized applying salmon test DNA as experimental model for nucleic acids (stDNA) in pH = 5, MES buffer solution (10 mM) and TT concentration of 5 μM. For the ionic strength studies, it was observed that increasing NaCl concentration (0 – 150 mM) the TT-DNA interaction process is disfavored, indicating that the interaction mechanism occurs through electrostatic attractions. Moreover, binding mode assays with competitors (ethidium bromide and berenil) were performed, showing that the second type of interaction occurs preferentially by groove. In those conditions, the probe was able to respond immediately to different nucleic acids, with the signal stable for at least 120 min. The proposed method presents a 0.1 – 1.5 mg L-1 linear range in stDNA, with a LOD of 0.012 mg L-1 relative standard deviation lower than 3.7 %. Applying RNA as a standard, the method shows linear range of 0.25 – 3.0 mg L-1, LOD of 0.073 mg L-1 and RSD lower than 3.2 %. Fe(III) ion and albumin and lysozyme proteins were the main interference species to the method. At last, the concentration of nucleic acids in a DNA sample extracted from blood plasma was determined (stDNA – 57 mg L-1 and ctDNA – 48,5 mg L-1 standards), moreover, it was performed a recovery assay applying ctDNA and stDNA in saliva samples whose recoveries in the range of 67 – 89%. / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A determinação de ácidos nucleicos em amostras biológicas tem sido imprescindível nas últimas décadas para muitos processos analíticos, como reação de polimerase em cadeia (PCR), genotipagem, diagnóstico clínico, determinação de organismos geneticamente modificados em ingredientes alimentares, testes para determinação de DNA fetal em sangue materno, aplicações forenses, entre outros. Medidas de absorvância no UV-vis são comumente usadas para quantificação de ácidos nucleicos. Entretanto, os resultados obtidos são aproximados e a exatidão das medidas é limitada. Dessa forma, este trabalho apresenta um método simples e rápido empregando a Tioflavina T (TT) como sonda sensível e seletiva para determinação de DNA e/ou RNA através de fluorescência molecular. O mecanismo da reação consiste na interação da TT com DNA ou RNA. Este mecanismo se baseia no conceito off-on em que a tioflavina livre em solução apresenta baixa fluorescência, mas ao interagir com o ácido nucleico, ocorre restrição de rotação na molécula de TT, tornando-a planar e possibilitando o alinhamento dos orbitais π, desta forma, provocando aumento na intensidade de fluorescência. Após a adição de DNA, a TT mostrou um desvio para o vermelho (efeito batocrômico) nos espectros de absorção molecular, indicando que ocorre interação com a macromolécula. As condições experimentais foram otimizadas empregando DNA de salmão como modelo experimental de ácido nucleico (stDNA) em pH = 5, tampão MES (10 mM) e a concentração de TT em 5 μM. No estudo da força iônica observou-se que o aumento da concentração de NaCl (0 - 150 mM) desfavorece o processo de interação TT-DNA, indicando que a interação se dá por meio de atrações eletrostáticas. Além disso, realizou-se o estudo do modo de ligação com os competidores como brometo de etídio e berenil evidenciando que um segundo tipo de interação ocorre preferencialmente via groove. Nestas condições, a sonda respondeu a diferentes ácidos nucleicos (DNA e RNA) de forma imediata, sendo o sinal estável pelo menos até 120 min. O método proposto apresentou faixa linear de concentração de 0,1-1,5 mg L-1 em stDNA com limite de detecção (LOD) de 0,012 mg L-1 e desvio padrão relativo (RSD) menor que 3,7%. Quando se utilizou RNA como padrão a faixa linear foi de 0,25-3,0 mg L-1 com LOD de 0,073 mg L-1 e RSD menor que 3,2 %. Os íons Fe(III) e as proteínas albumina e lisozima foram os principais interferentes do método. Por fim, determinou-se a concentração de ácidos nucleicos em uma amostra de DNA extraído de plasma sanguíneo (padrão stDNA – 57 mg L-1 e ctDNA – 48,5 mg L-1), além disso, também foi realizado o ensaio de recuperação empregando ctDNA e stDNA em amostras de saliva, no qual obteve-se recuperações na faixa de 67-89%.

Submitted by Pedro Zappa (pzappa@fgvmail.br) on 2011-09-01T14:46:26Z No. of bitstreams: 1 Governança Corporativa e a Velocidade de Ajuste - Final.pdf: 655183 bytes, checksum: da6ae09f858531e936e35f6f04110265 (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2011-09-26T18:27:18Z (GMT) No. of bitstreams: 1 Governança Corporativa e a Velocidade de Ajuste - Final.pdf: 655183 bytes, checksum: da6ae09f858531e936e35f6f04110265 (MD5) / Made available in DSpace on 2011-09-26T18:27:26Z (GMT). No. of bitstreams: 1 Governança Corporativa e a Velocidade de Ajuste - Final.pdf: 655183 bytes, checksum: da6ae09f858531e936e35f6f04110265 (MD5) Previous issue date: 2011-05-20 / This study aims to examine the relationship between corporate governance and the speed of adjustment to the optimal capital structure of companies listed on BM&FBovespa between 1998 and 2009, from the perspective of the Dynamic Trade-Off Theory. The level of corporate governance was measured on the basis of different listing segments of the BM&FBovespa, with some control variables used to determine the optimal leverage. The results indicate that firms with better governance have lower degree of leverage and adjust more quickly towards the optimum. / O presente trabalho tem por objetivo analisar a relação entre governança corporativa e a velocidade de ajuste para a estrutura ótima de capital das empresas listadas na BM&FBovespa entre 1998 e 2009, sob o prisma da teoria do Trade-Off Dinâmico. O nível de governança corporativa foi medido com base nos segmentos de listagem diferenciada da BM&FBovespa, tendo sido utilizadas algumas variáveis de controle para a determinação da alavancagem ótima. Os resultados indicam que empresas com melhor governança têm menor grau de alavancagem e se ajustam mais rapidamente em direção ao ótimo.

This study examines the divide between finance theory and practice by analysing the significance of the determinants of capital structure choice among 123 listed firms on the JSE, to determine whether these firms follow the trade-off theory or the pecking-order theory. Data obtained from McGregor’s Bureau of Financial Analysis database was analysed using standard multiple regressions, stepwise regressions and ANOVA techniques to test for financing behaviour. The results indicated that the trade-off model has both cross-sectional and time-series explanatory power for explaining the financing behaviour, while tests on the pecking-order model were weak. The results further revealed a significant positive correlation between debt financing and financial distress, and a significant negative correlation between debt financing and the collateral value of assets during the period under study (1995-2005). These findings suggest a divergence between finance theory and practice for JSE listed firms and manifest conflicting ideologies between finance practices of developed and developing economies. / Business management / M. Com. (Business Management )

I detta arbete kan du läsa om ett alternativ för den fasta inredningen i ett Tiny hus på hjul. Jag har i detta examensarbete även utforskat boende på liten yta och tittat på vad ett mindre boende kan göra för vår miljöpåverkan, vår ekonomi och våra beteenden.   I mitt projekt har jag skapat inredningsarkitekturen till ett minihem på hjul för två personer som är 14m2 + 4m2 bi-area. Huset är tänkt för året-runt-boende. Ett minihus är ett hem med ett litet miljömässigt fotavtryck som inte tar större plats än vad det verkligen behöver. I ett så litet hem måste de boende värdera och prioritera vad som verkligen är viktigt för dem. Inget annat får plats. Nästa gång du flyttar, flytta med hela ditt hem. / In this thesis you can read about an alternative for the interior architecture of a Tiny house on wheels. It also explores tiny living as a possibility for some of us and looks at what a small accommodation can make for our environment, our economy and our behaviours.   In my project, I have created the interior architecture of a tiny house for two people on wheels. The house is 14m2+ 4m2in the loft and it is designed for year-round-living. A tiny house is a home with a small environmental footprint that doesn’t take up more space than it really needs. In such a small home residents must evaluate and prioritize what is truly important to them. Nothing else will fit. Next time you move, move your entire home.

A comparação entre duas teorias na área de finanças sobre estrutura de capital nas empresas é o objetivo deste trabalho. Usando testes desenvolvidos por Shyam-Sunder & Myers (1999) e Rajan & Zingales (1995), os dados de empresas brasileiras, não financeiras, de capital aberto foram analisados entre os anos de 2000 e 2010 para verificar se preferiram os comportamentos previstos na Static Trade-off Theory ou os da Pecking Order Theory. As maneiras de se financiar e as causas e conseqüências dessas decisões nas empresas são importantes questões que vêm sendo debatidas em inúmeros trabalhos acadêmicos. Este trabalho procurou analisar a bibliografia relacionada ao tema e replicar testes realizados no exterior, visando verificar as semelhanças, diferenças e os motivos relacionados a tais resultados. Os resultados obtidos apontam para a provável preferência do comportamento previsto pela Pecking Order Theory, isto é, as empresas estudadas, no período analisado, usaram, em primeiro lugar, recursos gerados internamente (caixa operacional), usando em segundo lugar recursos de terceiros, por meio de empréstimos bancários ou emissão de debêntures, somente emitindo ações como última alternativa. Outra conclusão foi que as empresas brasileiras de capital aberto provavelmente não procuram alcançar ou manter uma meta ideal de endividamento, que equilibre os custos e benefícios gerados pelos empréstimos. / The comparison between two theories in the finance area of capital structure in business is the goal of this work. Using tests developed by Shyam-Sunder & Myers (1999) and Rajan & Zingales (1995), the data of Brazilian non-financial publicly traded were analyzed between the years 2000 and 2010 to determine whether they preferred the expected behaviors in the Static Trade-off Theory or the Pecking Order Theory. The ways to finance and the causes and consequences of these decisions in organizations are important issues that have been discussed in numerous scholarly works. This study sought to examine the literature related to the theme and replicating tests performed abroad in order to verify the similarities, differences and the reasons related to such results. The results indicate the problabe preference behavior provided by Pecking Order Theory, ie the companies studied in the period analyzed, used, first, internally generated funds (operating cash), second using third-party funds through bank loans or issuance of bonds or issuance of bonds, sending shares only as a last resort. Another conclusion is that Brazilian companies traded problaby did not seek to achieve or maintain an ideal goal of indebtedness, wich balances the costs and benefits generated by the loans.

Ambitionen med denna studie har varit att läsaren ska få en inblick i det våld som medföljer prostitution och att den överhängande risken för att utsättas för våld förekommer oavsett om kvinnan är verksam inom “off-street” eller “on-street” prostitution. Syftet har varit att utföra en jämförande studie av den utsatthet för våld av sexköpare som kvinnor verksamma i “off- street” respektive “on-street” prostitution upplever. Vidare användes en kvalitativ innehållsanalys av svenska biografier om prostitution för att studera hur kvinnorna i prostitution beskrev sina möten med sexköpare. De huvudsakliga resultaten är att det råder skillnader i det våld som kvinnorna erfarit av sexköpare och hur de beskriver sina upplevelser. De rådande skillnaderna har berott på vilket verksamhetsområde kvinnan varit aktiv i. Utifrån biografierna framkom det att kvinnorna verksamma ”off-street” hade ett sexuellt självskadebeteende, att det kunde urskiljas en normaliseringsprocess av det upplevda våldet samt att kvinnorna inom ”on-street” har en ökad risk för att utsättas för viktimisering enligt livsstilsteorin. Slutsatserna i denna studie är att de teoretiska utgångspunkterna har en betydande roll gällande vilken form av våld kvinnorna får erfara av sexköpare. / The aim of this study was to provide the reader with an insight into the violence that accompanies prostitution and that the imminent risk of violence is present regardless of whether the woman is active in “off-street” or “on-street” prostitution. The purpose has been to carry out a comparative study of the vulnerability to violence by sex buyers that women in “off-street” and “on-street” prostitution experience. In addition, a qualitative content analysis of Swedish biographies on prostitution was used to study how women in prostitution described their meetings with sex buyers. The main results are that there are differences in the violence that women experience from sex buyers and how they describe their experiences. These differences depended on whether the women were active in “off-street” or “on-street” prostitution. Based on the biographies, it was found that the women in “off-street” had a sexual self-harm, that a normalization process of the experienced violence could be distinguished and that women active “on-street” have an increased risk of being victimized according to the lifestyle theory. The conclusions of this study are that the theoretical aspects have a significant role in what kind of violence women in prostitution experience from sex buyers.

Sammanfattning Titel: Har ett företags utdelningspolicy någon betydelse?   Nivå: Examensarbete på Grundnivå (kandidatexamen) i ämnet företagsekonomi.   Författare: Pontus Kindlund och Andreas Wallgren   Handledare: Catherine Lions   Datum: 2018–01   Syfte: Tidigare forskning undersöker oftast utdelningspolicyns betydelse för investerarna. Därför har vi valt att se det från företagens perspektiv genom att undersöka hur ett företags utdelningspolicy påverkar företagets genomsnittliga kapitalkostnad.   Metod: Studien har en kvantitativ metod med hypotesprövningar och en deduktiv ansats där datan är inhämtad från Thompson Reuters Datastream. Regressionsanalyser har sedan utförts för att studera sambandet mellan företagens utdelningspolicy och företagens genomsnittliga kapitalkostnader.   Resultat och slutsats: Studiens resultat visar att det inte finns några omfattande samband mellan företagens utdelningspolicy och företagens genomsnittliga kapitalkostnader. Vår studie är därför i linje med studien från Modigliani och Miller (1961) angående utdelningspolicyns irrelevans.   Examensarbetets bidrag: Studiens resultat bidrar med kunskap som kan vara till nytta för företagsledningar som utarbetar företagens utdelningspolicy, eftersom oavsett val av utdelningspolicy kan det inte förväntas ha en signifikant påverkan på företagens genomsnittliga kapitalkostnad.   Förslag till fortsatt forskning: Då vår studie inte har tagit hänsyn till företagens investeringsmöjligheter så kvarstår det att även ta hänsyn till detta för att undersöka utdelningspolicyns påverkan på den genomsnittliga kapitalkostnaden.   Nyckelord: Utdelningspolicy, Genomsnittlig kapitalkostnad, Signalteori, Utdelningspolicyns irrelevans, Trade-off-teori / Abstract Title: Does a company’s dividend policy matter?   Level: Student thesis, final assignment for Bachelor Degree in Business Administration.   Author: Pontus Kindlund and Andreas Wallgren   Supervisor: Catherine Lions   Date: 2018–01   Aim: Previous research usually explores the importance of the dividend policy for investors. Therefore, we have chosen to see it from the corporate perspective by investigating how a company's dividend policy affects the company's weighted average cost of capital.   Method: The study has a deductive approach and a quantitative method of hypothesis testing and where the data is obtained from Thompson Reuters Datastream. Regression analysis has then been conducted to study the relationship between the dividend policy and the companies’ weighted average cost of capital.   Result & Conclusions: The study's results show that there is no general correlation between the company's dividend policy and the company's weighted average cost of capital. Our study is in line with the study by Modigliani and Miller (1961) regarding the irrelevance of the dividend policy.   Contribution of the thesis: The results of the study contribute to creating knowledge that may be useful to business executives who prepare the company's dividend policy, since any choice of dividend policy should not be expected to have a significant impact on the weighted average cost of capital.   Suggestions for future research: As our study has not taken into account the companies' investment opportunities, it remains to take this into consideration to investigate the impact of the dividend policy on the weighted average cost of capital.   Key words: Dividend policy, Weighted average cost of capital, Signaling theory, The irrelevance of a dividend policy, Trade-off theory

Este trabalho apresenta o estudo da dinâmica vertical de um veículo off-road de competição e do comportamento elastocinemático de suas suspensões primárias de duplo estágio com o auxílio da ferramenta computacional de simulação de sistemas multicorpos MSC-ADAMS. O modelo multicorpos do veículo inclui os modelos da suspensão dianteira, suspensão traseira, sistema de direção, pneus e massa suspensa. As análises elastocinemáticas das suspensões definiram geometrias que permitem longos cursos de trabalho das suspensões sem variações indesejadas de parâmetros de projeto. Com a análise modal do modelo de veículo completo foram definidos os valores de rigidez das molas das suspensões de duplo estágio que resultaram em valores de freqüência natural no primeiro estágio semelhantes aos indicados para carros de passeio e no segundo estágio, próximos dos encontrados em veículos de competição. A análise de conforto do veículo durante simulação de passagem por trecho de pista demonstrou que os elementos de força definidos na análise modal resultam em níveis de conforto raramente encontrados em veículos de competição. / This dissertation presents the study of a off-road competition vehicle ride and the double rate suspensions elastokinematic behavior using the multibody software MSC-ADAMS. The vehicle multibody model includes the rear and front suspensions, the steering system, the tires and the sprung mass. The suspensions elastokinematic analysis defined geometric configurations that allowed long jounce and rebound travel of wheel, without undesirable project parameters variations. In the modal analysis of the vehicle multibody model, the springs rates that results in natural frequencies values similar to passenger cars for the first suspension stage and, for the second stage, similar to competition vehicles, were defined. The ride analysis during the simulation of the vehicle running on a rough track showed that the force elements defined on the modal analysis resulted in a good ride quality, rarely found in competition vehicles.