Small Bridge
Mostrando 13-24 de 126 artigos, teses e dissertações.
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13. Structural behavior of extradosed bridges. / Comportamento estrutural de pontes com protensão no extradorso.
In recent years, external prestressing applied to structures of bridges has experienced exceptional development, permitting a greater freedom in design and, consequently, the appearance of new structural typologies. An exemple of such development is the extradosed bridge, a concept that begins to spread in technical media as a low cost transition between pre
Publicado em: 2006
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14. ANÁLISE TEÓRICA E EXPERIMENTAL DO COMPORTAMENTO DE GRANDES E PEQUENOS SINAIS E DESENVOLVIMENTO DE UM NOVO MODELO DINÂMICO DE PEQUENOS SINAIS DO CONVERSOR ZVS-PSM-FB.
Esta Dissertação de Mestrado apresenta o desenvolvimento de um novo modelo dinâmico para o conversor CC-CC Ponte-Completa Modulado por Deslocamento de Fase e com Comutação em Zero de Tensão (ZVS-PSM-FB). Inicialmente, o conversor ZVS-PSM-FB é analisado, onde são derivadas as equações que definem a operação em regime-permanente do conversor. A seg
Publicado em: 2006
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15. Estudo de estacas de madeira para fundações de pontes de madeira / Study of timber piles for wooden bridges foundations
This work presents a theoretical and experimental study of timber piles, including the instrumentation of the timber piles of a wooden bridge foundation, in order to generate recommendations for the project of this type of foundations for small wooden bridges. The experimental work was made in two stages. In the first stage the mechanical properties of timbe
Publicado em: 2005
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16. Debatiendo sobre el feminismo en México
Debate feminist has published more than 7,000 pages of texts written by women or about them, during its thirteen years of life. The aims of the journal are to be a bridge between scholarly and political work and to establish a dialogue with the feminist movement. An account of the topics addressed by the journal is presented, by making an account of the jour
Revista Estudos Feministas. Publicado em: 2004-12
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17. LabSis : um ambiente para desenvovimento de aplicações sismicas Matlab
The Matlab package is a tool of widespread use in the academic environment, because of its advantages in simple direct programming, graphs and visualization tools. It allows initial implementations of algorithms and procedures very quickly in a series of applications. As a counterpar to the above good qualities, Matlab programs do not exhibit the computation
Publicado em: 2004
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18. Angiotensin II-mediated vascular smooth muscle cell growth signaling
The mechanism by which Ang II stimulates the growth of vascular smooth muscle cells was investigated by measuring the phosphorylation of mitogen-activated protein kinases ERK 1 and ERK 2. Ca2+ ionophore was found to have effects practically analogous to Ang II. We found that the signaling pathway involves the activation of epidermal growth factor receptor (E
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-06
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19. Ponte miocardica : considerações a proposito de 60 casos necropsiados
We studied sixty patients who underwent necrospy at University Hospital of PUCCAMP, which hearts presented myocardial bridges on the coronary artery branches. The objective of this work were: 1.The anatomic-pathologic study of the hearts. 2.The general and anatomic study of the myocardial bridges, including: bridge frequency, age, sex, race of the patientes;
Publicado em: 1991
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20. Role of cross-bridge distortion in the small-signal mechanical dynamics of insect and rabbit striated muscle.
The mechanism of the active tension response of insect fibrillar muscle to step changes and small oscillations of length was re-investigated, following White's demonstration (1983) that the high relaxed stiffness evidently persists during activation and cannot be neglected as had previously been assumed. White's result makes earlier explanations of the small
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21. A new recognisable syndrome in three sibs with congenital heart disease, round face with depressed nasal bridge, short stature, and developmental retardation.
We report three sibs with congenital heart disease, round face with depressed nasal bridge, small mouth, short stature, developmental retardation, relatively dark skin, and high axial triradius. The chromosomes of the three patients were normal and the parents were unrelated, healthy, and of normal intelligence. The mother denied infections, drinking, drug i
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22. Dependence of ATP consumption on cross-bridge phosphorylation in swine carotid smooth muscle.
1. Ca(2+)-dependent phosphorylation of the myosin regulatory light chain (MRLC) initiates cross-bridge cycling and contraction in smooth muscle. A four-state cross-bridge model, in which Ca(2+)-dependent phosphorylation is the only proposed regulatory mechanism, can predict the mechanical output of the swine carotid media. Our aims were to determine whether
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23. Donor-bridge-acceptor energetics determine the distance dependence of electron tunneling in DNA
Electron transfer (ET) processes in DNA are of current interest because of their involvement in oxidative strand cleavage reactions and their relevance to the development of molecular electronics. Two mechanisms have been identified for ET in DNA, a single-step tunneling process and a multistep charge-hopping process. The dynamics of tunneling reactions depe
The National Academy of Sciences.
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24. Nontransplant Cardiac Surgery: as a Bridge to Heart Transplantation in Pediatric Dilated Cardiomyopathy
Partial left ventriculectomy and mitral valve repair, alone or in combination, have been used successfully to treat adult patients with end-stage dilated cardiomyopathy, yet the clinical results of this procedure in small children have been described only rarely. We report 2 cases of nontransplant cardiac surgery in small children with end-stage dilated card