Small Bridge
Mostrando 1-12 de 126 artigos, teses e dissertações.
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1. RING CURRENT IN ANTHRACENE AND PHENANTHRENE: CORRECTION TO HÜCKEL PARAMETERS
Excessive degeneracy in the ground state of the π-electron energy levels of anthracene was removed using the Hückel method by correcting the Coulomb integral of the four central carbon atoms. A further correction to the resonance integral was proposed based on the ring-current model, which describes the π-ring current flow along the molecule’s perimeter
Química Nova. Publicado em: 2022
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2. The Impact of Offshoring on Home Country’s Employment
Resumo Apesar de não ser um fenômeno recente, o offshoring assume uma importância cada vez maior nas atividades das empresas multinacionais, sendo frequentemente tema de discussão no plano político, principalmente entre economias mais desenvolvidas, devido às associações que lhe são habitualmente feitas de ser o fenômeno que está na base do fraco
Estud. Econ.. Publicado em: 10/01/2020
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3. Methods for quantification of cerebral glycolytic metabolism using 2-deoxy-2-[18 F]fluoroglucose in small animals
Abstract Introduction The use of the same imaging and quantification techniques in small animals and clinical studies presents the opportunity for direct translational research in drug discovery and development, in neuropharmacological basis of neurological and psychiatric diseases, and in optimization of drug therapy. Thus, positron emission tomography (P
Res. Biomed. Eng.. Publicado em: 13/09/2018
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4. Nonlinear Dynamic Analysis of Telescopic Mechanism for Truss Structure Bridge Inspection Vehicle Under Pedestrian Excitation
Abstract Nonlinear dynamic analysis of an axially moving telescopic mechanism for truss structure bridge inspection vehicle under pedestrian excitation is carried out. A biomechanically inspired inverted-pendulum model is utilized to simplify the pedestrian. The nonlinear equations of motion for the beam-pedestrian system are derived using the Hamilton's pri
Lat. Am. j. solids struct.. Publicado em: 2016-06
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5. PRÉ-DIMENSIONAMENTO DE VIGAS MISTAS DE AÇO E CONCRETO PARA PONTES DE PEQUENO PORTE. / PRÉ-DIMENSIONAMENTO DE VIGAS MISTAS DE AÇO E CONCRETO PARA PONTES DE PEQUENO PORTE.
As vigas mistas de aço e concreto são amplamente utilizadas em projetos de pontes rodoviárias e muitas são as vantagens do emprego desta tipologia construtiva. Entretanto para que ocorra o melhor aproveitamento do sistema, o projetista precisa ter conhecimentos específicos na área. Auxiliando suas escolhas, o profissional tem hoje a vantagem de anális
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2011
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6. Modular bridge timber trusses system: a good alternative to the Para State / Sistemas de treliças modulares para pontes de madeira: uma boa alternativa para o Estado do Pará
The Para state has an area of 1.253.164,49 KM POT.2; it has an abundant hydrography and nearly 19.253,35 Km of vicinal roads, that are cut by many rivers. In this context, the construction of bridges with small and medium spans is essential to the improvement of intercity and interstate transportation. The system of modular timber truss bridges, was already
Publicado em: 2010
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7. Análise de propostas de estratégias de controle para algumas topologias de multiconversores monofásicos. / Analysis of control strategies for some single-phase multiconverter topologies.
This work presents the main multilevel converter topologies described in the literature. A bibliography revision is presented, showing the advantages and limitations of each topology. The most usual multilevel modulation methods are also presented, as well as their fields of application in the industry as well as in power systems. The one phase full bridge a
Publicado em: 2009
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8. Pierre Bourdieu e o culto cristão : diálogo entre a sociologia de Pierre Bourdieu e o culto cristão : em busca de um conceito herético
This work tries to bring into dialogue the sociology of Pierre Bourdieu and his critique about the institutions, which symbolically provide and promote relations of domination, and Christian worship. The first chapter tries to group various concepts of Pierre Bourdieu around that what is called genesis of the relations of domination. After a small effort to
Publicado em: 2009
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9. Estudo e aplicação das propriedades elétricas, térmicas e mecânicas de materiais amorfos piezoresistivos em transdutores de pressão. / Study and application of eletrical properties, thermal and mechanical of amorphus matherials in piezoresistive.
This tesis presents the piezoresistivity theoretical and experimental study for two materials with amorphous structure. The first material is the Diamond Like Carbon and the other is the Indium Tin Oxide. The work includes the bibliographic study, theoretical and practical design of structures for testing individual and piezoresistors configured in bridge, i
Publicado em: 2009
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10. Camu-camu arbustivo (Myrciaria dubia) e camu-camu arbóreo (M. floribunda): enxertia intraespecífica e interespecífica
The camu-camu (Myrciaria dubia (H.B.K.) McVaugh) is a shrubby indigenous fruit species found in the floodplains of Amazonia. The species is commonly propagated by seeds, and consequently shows considerable variation in age of bearing, production cycle, fruit yields and Vitamin C contents. Myrciaria floribunda (West ex Willd.) O. Berg is a small tree that occ
Publicado em: 2009
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11. Historia, trabalho e educação : relações de produção e qualificação da força de trabalho na agroindustria canavieira / History, work and education : relations of production and qualification of the workforce in the sugarcane industry
This thesis presents a historical study of the relation between work and education, having as basis the transformation of the sugar cane agro industry. The objective was toanalyze the transformations in the organization of the production, the division of work and its relations, as well as, the possible relations with the general educative processes and forma
Publicado em: 2009
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12. Utilização de madeira de eucalipto de pequenas dimensões na fabricação de uma ponte protendida com madeira laminada colada / Use of small-sized eucalyptus wood to build a pre-stressed bridge with glued-laminated timber
This study aimed to build and evaluate the behavior of a highway stress-laminated timber bridge deck measuring 6m in length, 3.5 m width and 0.24 m thickness submitted to a load of 13 t. The deck was built with laminations made from eucalyptus logs of various thinning-originated specimens, with a mean diameter of 2.5 m and ages ranging between 8 and 19. To b
Publicado em: 2007