Deflection
Mostrando 1-12 de 243 artigos, teses e dissertações.
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1. Single-use flexible ureteroscopes: update and perspective in developing countries. A narrative review
ABSTRACT Flexible ureteroscopy is a well-established method for treatment of urinary stones but flexible ureteroscopes are expensive and fragile devices with a very limited lifetime. Since 2006 with the advent of digital flexible ureteroscopes a great evolution has occurred. The first single-use flexible ureteroscope was launched in 2011 and new models are c
International braz j urol. Publicado em: 2022
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2. Damage localization and quantification of tower structures based on the super-element method
Abstract Tower structures are sensitive to hurricanes or earthquakes, whereupon they are easily damaged due to large deflection and dynamic responses. Herein, a method is proposed to accurately identify the location and extent of damage in tower structures. Firstly, a tower structure is divided into several sections along its height, and each section is rega
REM, Int. Eng. J.. Publicado em: 2021-01
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3. Flexible pavement overlay design of UFJF ring road based on the new Brazilian mechanistic-empirical pavement design method
Abstract The procedures for design and reinforcement projects regarding flexible pavements available in Brazil are mostly based on empirical models developed from studies carried out in specific localities, and therefore, should only be used in cases where equivalent climatic and traffic conditions are observed. The national highway agencies in partnership w
REM, Int. Eng. J.. Publicado em: 2020-12
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4. Gestalt contact styles in OCD patients: a controlled study
Abstract Background Obsessive-compulsive disorder is a challenging disease in terms of remission rates and treatment approaches. All theoretical approaches are needed for a better understanding. Compared to other theories, it has not been examined sufficiently from the perspective of gestalt theory in the literature. Objective To examine and compare the
Arch. Clin. Psychiatry (São Paulo). Publicado em: 2020-02
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5. A deflexão gravitacional da luz: De Newton a Einstein
Resumo A comprovação do encurvamento da luz devido a efeitos gravitacionais constitui um importante marco na história da ciência, porque as medidas da deflexão da luz nas observações astronômicas durante o eclipse de 1919 confirmaram o valor previsto pela teoria da relatividade geral de Einstein, concluída em 1915. O fato teve uma repercussão extra
Rev. Bras. Ensino Fís.. Publicado em: 13/12/2019
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6. Eddington e o encurvamento gravitacional da luz — com a tradução de Weighting Light do seu clássico livro Space, Time and Gravitation
Resumo Arthur Eddington, um dos proponentes e principal articulador das expedições britânicas que realizaram observações do Eclipse de 1919 em Sobral e na Ilha de Príncipe, narrou suas impressões e os resultados obtidos nas placas fotográficas em capítulo de seu clássico livro Space, Time and Gravitation. Neste artigo, consta a tradução e coment�
Rev. Bras. Ensino Fís.. Publicado em: 13/12/2019
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7. Shadow of the Moon and general relativity: Einstein, Dyson, Eddington and the 1919 light deflection
Abstract The eclipse of the Sun of 1919 was fundamental in the development of physics and earns a high place in the history of science. Several players took part in this adventure. The most important are Einstein, Dyson, Eddington, the Sun, the Moon, Sobral, and Principe. Einstein's theory of gravitation, general relativity, had the prediction that the gravi
Rev. Bras. Ensino Fís.. Publicado em: 13/12/2019
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8. Revised formula for predicting the long-term deflection multiplier of normal and high strength concrete
Abstract High strength concrete (HSC) has found many applications in civil engineering structures such as in high-rise buildings, and bridges. The mechanical properties of HSC are sometimes different than of normal strength concrete (NSC). In particular, HSC possess lower creep strains compared to NSC. As a result, members constructed using HSC have been fou
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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9. Do Eclipse Solar de 1919 ao Espetáculo das Lentes Gravitacionais
Resumo Um século depois de observada a deflexão da luz emitida pelas estrelas distantes, durante o eclipse solar de 1919, é interessante saber os conceitos que emergiram do experimento e suas consequências teóricas e observacionais para a cosmologia e astrofísica moderna. Além de confirmar a teoria gravitacional de Einstein, o maior legado foi a const
Rev. Bras. Ensino Fís.. Publicado em: 13/12/2019
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10. THE USE OF THE AUTOMATED DIGITAL ZENITH CAMERA SYSTEM IN ISTANBUL FOR THE DETERMINATION OF ASTROGEODETIC VERTICAL DEFLECTION
Abstract: The Digital Zenith Camera Systems (DZCSs) are dedicated astrogeodetic instruments used to obtain highly accurate astrogeodetic vertical deflection (VD) data. The first Turkish DZCS, the Astrogeodetic Camera System (ACSYS), was developed in Istanbul, Turkey in 2015. The ACSYS was capable of determining astrogeodetic VDs with an accuracy of ~0.3 arcs
Bol. Ciênc. Geod.. Publicado em: 28/11/2019
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11. Strain-deformation Reconstruction of Carbon Fiber Composite Laminates Based on BP Neural Network
The Carbon Fiber Reinforced Polymer (CFRP) laminate structural components used in the aerospace and military domains require high precision and strong stability. Usually the deformation of these structural components is difficult to be measured directly during operation, but the deformation of the CFRP laminate structure can be reconstructed with strain info
Mat. Res.. Publicado em: 14/11/2019
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12. Floors number influence on the instability parameter of reinforced concrete frame-braced buildings
Resumo Este trabalho investiga a influência do número de pavimentos no limite α1 do parâmetro de instabilidade de edifícios contraventados por pórticos de concreto armado; trata-se da seqüência de uma linha de estudos, na qual esta mesma questão foi investigada em edifícios contraventados por paredes e/ou núcleos. Inicialmente, mostra-se como a AB
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019