Load Transfer
Mostrando 13-24 de 117 artigos, teses e dissertações.
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13. Cost-effective joints configurations of concrete pavements for a sustainable infrastructure
Abstract Nowadays, there are Concrete Pavements (CPs) with Joints Configurations (JCs) that reduce initial costs about 20%. But are these JCs produced by Early-Entry Saw-Cutting (EESC), Unsealed Joints (UJs) and Shorter Joint Spacing (ShJS) able to maintain the traditional performance of CPs? The aim of this paper is to analyze the effects of the joints beha
J. Transp. Lit.. Publicado em: 2015-04
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14. Numerical study of effect of elastomeric stress absorbers on stress reduction in bone-dental implant interface
Objective This paper focused on optimal stress distribution in the mandibular bone surrounding a dental implant and is devoted to the development of a modified Osteoplant® implant type in order to minimize stress concentration in the bone-implant interface. Material and Methods This study investigated 0.4 mm thick layers of two elastomeric stress barriers
J. Appl. Oral Sci.. Publicado em: 2015-02
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15. Oxygen air enrichment through composite membrane: application to an aerated biofilm reactor
A highly permeable composite hollow-fibre membrane developed for air separation was used in a membrane aerated biofilm reactor (MABR). The composite membrane consisted of a porous support layer covered with a thin dense film, which was responsible for oxygen enrichment of the permeate stream. Besides oxygen enrichment capability, dense membranes overcome maj
Braz. J. Chem. Eng.. Publicado em: 2013-12
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16. Importance of a distal proximal contact on load transfer by implant-supported single adjacent crowns in posterior region of the mandible: a photoelastic study
OBJECTIVE: This study aimed to evaluate the importance of a distal proximal contact on the load transfer to the posterior region of the mandible by non-splinted adjacent implant-supported crowns using photoelastic stress analysis. MATERIAL AND METHODS: A rectangular model (68x30x15 mm) was made of polymethylmethacrylate resin to simulate half of the mand
J. Appl. Oral Sci.. Publicado em: 2013-09
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17. Nitrous oxide emissions from an intermittent aeration activated sludge system of an urban wastewater treatment plant
This study investigated the emission of N2O during the sequential aerated (60-min) and non-aerated (30-min) stages of an intermittent aeration cycle in an activated sludge wastewater treatment plant (WWTP). N2O emission occurred during both stages; however, emission was much higher during aeration. Air stripping is the major factor controlling transfer of N2
Quím. Nova. Publicado em: 2013
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18. Produção e eficácia de anticorpos gerados contra glicolipídios de Paracoccidioides brasiliensis / Production and efficacy of antibodies generated against glycolipids of P. brasiliensis
Paracoccidioidomycosis (PCM) is a systemic fungal infection most prevalent in Latin America, whose etiologic agent, Paracoccidioides brasiliensis, is a yeast with a complex cell wall structure consisting of proteins, glycoproteins, polysaccharides, lipids, and melanin polypeptides that gather physical, chemical and biological conditions to serve as antigens.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/10/2012
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19. Spline Dynamic Matrix Controller : uma nova formulação de controladores preditivos lineares
In the field of dynamic simulation, an understanding of the dynamic behavior of chemical processes is important from both process design and process system perspectives. Several methodologies have been developed so far, such as Step Response (SR), Transfer Function (TF) and Discrete State Space representation (DSS). Such approaches, however, have some disadv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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20. Avaliação de mancais hidrodinâmicos com descontinuidades geométricas / Evaluation of hydrodynamic bearings with geometric discontinuities
Hydrodynamic bearings are widely used in rotating machines, being the element responsible for the interaction between the rotor and the supporting structure. Therefore, in order to describe the dynamic behavior of the rotating shafts, it is necessary to know the journal bearings characteristics. For this reason, the purpose of this work is to analyze the dyn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2011
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21. A FEM-BEM interactive coupling for modeling the piezoelectric health monitoring systems
In this research, finite element and boundary element methods are coupled together to model the interaction of a piezoelectric ceramic working as an actuator with an elastic material. Piezoelectric-elastic material's interaction occurs in smart structures. This work is aimed at determining the actuation effects being transferred from the actuators to the hos
Latin American Journal of Solids and Structures. Publicado em: 2011-09
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22. Proposição de uma metodologia de avaliação dos limites de intercâmbio em sistemas de grande porte: desafios para automação
Power transfer limits calculation has to be performed taking into account static and dynamic aspects. Therefore, a huge amount of data needs to be manipulated. The transfer limits values are important in power system planning analysis, as they might represent an energetic constraint between two or more systems. In this way, besides the different load conditi
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2011-04
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23. A rationale method for evaluating unscrewing torque values of prosthetic screws in dental implants
OBJECTIVES: Previous studies that evaluated the torque needed for removing dental implant screws have not considered the manner of transfer of the occlusal loads in clinical settings. Instead, the torque used for removal was applied directly to the screw, and most of them omitted the possibility that the hexagon could limit the action of the occlusal load in
Journal of Applied Oral Science. Publicado em: 2011-02
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24. Impacto de condicionantes hidrológicas na definição de traçados rodoviários : aplicação na rodovia TO-247
The contribution of this research is given by the design of effective impacts of highways, through the expansion of the influence areas beyond the linear tracks, adding the assessment of the environmental sensitivity of watersheds in order to optimize the layout of road projects. It was produced an orderly and systematic approach of the cause and consequence
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011