Data Compression
Mostrando 25-36 de 241 artigos, teses e dissertações.
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25. Venous Thromboembolism-Incidence of Deep Venous Thrombosis and Pulmonary Embolism in Patients with Head and Neck Cancer: A Tertiary Care Experience in Pakistan
Introduction Although venous thromboembolism (VTE) is seen with morbidity and mortality in various surgical specialties, scarce data are available in the head and neck surgery domain.
Objective We aim to determine the incidence of VTE in patients receiving surgery for head and neck cancer.
< Int. Arch. Otorhinolaryngol.. Publicado em: 2015
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26. A characterization for the constitutive relationships of 42CrMo high strength steel by Artificial Neural Network and its application in isothermal deformation
In hot working process, the prediction of material constitutive relationship can improve the optimization design process. Recently, the artificial neural network models are considered as a powerful tool to describe the elevated temperature deformation behavior of materials. Based on the experimental data from the isothermal compressions of 42CrMo high streng
Mat. Res.. Publicado em: 05/08/2014
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27. Update on Middle Ear Barotrauma after Hyperbaric Oxygen Therapy?Insights on Pathophysiology
Introduction Middle ear barotrauma is the most common side effect of hyperbaric oxygen therapy. Knowledge and understanding of its pathophysiology are crucial for an accurate diagnosis and proper decision making about treatment and prevention. Objective Describe up-to-date information on pathophysiology of middle ear barotrauma after hyperbaric oxygen t
Int. Arch. Otorhinolaryngol.. Publicado em: 2014-04
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28. Dimensional stability of a novel polyvinyl siloxane impression technique
AIM: To introduce a modification of the reline impression technique (MRIT), and compare the dimensional changes of impressions obtained by MRIT and by conventional reline impression technique (CRIT). METHODS: An acrylic resin tablet was milled by a CAD-CAM system to simulate three abutments (A, B and C) with different distances among them. The abutment
Braz. J. Oral Sci.. Publicado em: 2014-04
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29. Treatment of AO/OTA 31-A3 intertrochanteric femoral fractures with a percutaneous compression plate
OBJECTIVE: AO/OTA 31-A3 intertrochanteric femoral fractures have completely different fracture line directions and biomechanical characteristics compared with other types of intertrochanteric fractures. The choice of the fixation method has been a focus of dispute among orthopedic trauma surgeons. The purpose of this study was to review the outcomes of thes
Clinics. Publicado em: 2014-01
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30. Compressive deformation behavior modeling of AZ31 magnesium alloy at elevated temperature considering the strain effect
The true stress-strain data from isothermal hot compression tests, in the temperature range of 300-500 ºC and strain rate of 0.001-0.1s-1, were employed to study the flow behavior of AZ31 and to develop constitutive equation based on an Arrhenius-type equation. The flow stress increases with the decrease of deformation temperature and the increase of strain
Mat. Res.. Publicado em: 17/09/2013
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31. Biomechanical analysis on different fixation techniques for treatment of mandibular body fractures
AIM: To biomechanically analyze two fixation techniques in polyurethane hemi-mandibular body fractures, using a universal testing machine. METHODS: The study employed 10 polyurethane hemi-mandible replicas, which simulated simple fractures of the mandibular body, divided into two groups: one group comprised 5 hemi-mandibles with two 2.0 mm system plates in t
Braz. J. Oral Sci.. Publicado em: 2013-06
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32. Avaliação estatística do erro de modelos de resistência para elementos lineares de concreto armado da ABNT NBR 6118:2007 / Statistical evaluation of resistance modelling error for linear elements of concrete structures of ABNT NBR 6118:2007
In a design of structures, it should be considered the intrinsic uncertainties to the present variables in the structure and in the structural concept, such as intensity and action distribution, mechanic properties of the material, geometric parameters of the structure and structural analysis and calculus models. Thus, the structural safety can only be measu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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33. APPLICATION OF NANOFLUIDS IN SECONDARY REFRIGERATION SYSTEMS / APLICAÇÃO DE NANOFLUIDOS EM SISTEMAS SECUNDÁRIOS DE REFRIGERAÇÃO
The application of nanofluids as secondary fluids in vapor compression refrigeration systems is studied with the development of a lumped-parameter thermodynamic model. When a nanofluid is used as a heat transfer fluid, its thermal conductivity and viscosity increase, when compared with the corresponding properties of the base fluid. The irreversibilities due
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
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34. Codificação de vídeo baseada em fractais e representações esparsas / Video coding based on fractals and sparse representations
A video is a sequence of still images representing scenes in motion. A video is a sequence of extremely similar images separated by abrupt changes in their content. If these images were transmitted and stored without any kind of preprocessing, this would require a massive amount of storage space and communication channels with very high bandwidths. Lossy com
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2012
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35. Information theory and adaptivity in the species distribution modeling. / Teoria da informação e adaptatividade na modelagem de distribuição de espécies.
Species distribution modeling is a technique the purpose of which is to estimate models based on ecological niche. These models can assist decision making processes, planning and carrying out actions aiming at environmental conservation and preservation. There are several tools designed for species distribution modeling, such as the open- Modeller framework,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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36. Estudo da influência da força de corte em usinagem a verde nas propriedades mecânicas de cerâmicas sinterizadas / Influence of the cutting force of green machining on the mechanical properties of sintered ceramics
The present study deals with the measurement forces of green machining ceramics and their correlation with the mechanical properties after sintering. The green machining is employed in crude compacts either to check raw formats without compromising the extreme dimensional accuracy or to obtain a preform prior to finish machining after sintering, extensively
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/01/2012