Soft Core
Mostrando 1-12 de 49 artigos, teses e dissertações.
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1. Free Vibration of flexible soft-core sandwiches according to layerwise theories differently accounting for the transverse normal deformability
Abstract This study aims to generalize a previously developed accurate and inexpensive 3-D zig-zag theory up to an arbitrary representation form and to determine which simplifications are yet accurate in determining transverse shear and normal stress/deformation effects on vibrations of soft-core sandwiches with not moving middle/neutral plane (pumping). Nat
Lat. Am. j. solids struct.. Publicado em: 28/10/2019
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2. Improving short-term grade block models: alternative for correcting soft data
Abstract Short-term mining planning typically relies on samples obtained from channels or less-accurate sampling methods. The results may include larger sampling errors than those derived from diamond drill hole core samples. The aim of this paper is to evaluate the impact of the sampling error on grade estimation and propose a method of correcting the impre
REM, Int. Eng. J.. Publicado em: 2018-03
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3. New concept of tunnel boring machine: high performance using water jet and diamond wire as rock cutting technology
Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although being well established equipment, these machinesare based on designsof more than 60 years ago and are characterized by big dimensions, enormous weight and high power consumption. Commercial aspects should be noted too. The model adopted by the TBM industry re
REM, Int. Eng. J.. Publicado em: 2018-03
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4. Free Damped Vibration of Rotating Truncated Conical Sandwich Shells Using an Improved High-Order Theory
Abstract In the present paper, an improved high-order theory is employed to study the free vibration of rotating truncated sandwich conical shells with laminated face sheets and a soft core. The formulation is based on a three-layer sandwich model. First-order shear deformation theory (FSDT) is used for face sheets and quadratic and cubic functions are assum
Lat. Am. j. solids struct.. Publicado em: 2017-12
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5. High Order Impact Elastic Analysis of Circular Thick Cylindrical Sandwich Panels Subjected to Multi-mass Impacts
Abstract This study dealt with the dynamic model of composite cylindrical sandwich panels with flexible cores and simply supported boundary conditions under low velocity impacts of multiple large or small masses using a new improved higher order sandwich panel theory (IHSAPT). In-plane stresses were considered for the core and face sheets. Formulation was ba
Lat. Am. j. solids struct.. Publicado em: 2015-12
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6. Brazilian experience in EU-CORE: daptomycin registry and treatment of serious Gram-positive infections
OBJECTIVES: To collect data about non-controlled prescribing use of daptomycin and its impact among Brazilian patients with serious Gram positive bacterial infection, as well as the efficacy and safety outcomes. MATERIALS AND METHODS: This is a multi-center, retrospective, non-interventional registry (August 01, 2009 to June 30, 2011) to collect data on 120
Braz J Infect Dis. Publicado em: 2013-12
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7. An analysis on electric and magnetic behaviour on an induction planar actuator
The induction planar actuator, i.e. IPA, proposed in this study presents an electromagnetic structure formed by a static ferromagnetic core with an aluminium plate that corresponds to the secondary, and a mover, also called primary. The latter comprehends two three-phase windings, mounted in an armature core, which are orthogonal to each other. When they are
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-06
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8. Técnicas de profiling para o co-projeto de hardware e software baseado em computação reconfigurável aplicadas ao processador softcore Nios II da Altera / Hardware and software codesing profiling techniques based on reconfigurable computing applied to the Altera´s Nios soft core processor
Como avanço dos paradigmas de desenvolvimento de sistemas eletrônicos, novos conceitos, modelos e técnicas resultaram dessa evolução, gerando ferramentas mais eficientes e objetivas. Entre estas, as de automação de projetos eletrônicos (EDA - Electronic Design Automation) em nível de sistema (ESL - Electronic System Level) trouxeram um incremento co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
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9. Proposta de uma arquitetura de processamento de sinais utilizando FPGA / Proposal to an architecture for signal processing using FPGA
Esta dissertação apresenta um sistema para processamento digital de sinais através de dispositivos de hardware reconfigurável. Uma implementação do algoritmo FFT foi adotada como meio para avaliar o desempenho da arquitetura proposta para o sistema. O processamento digital de sinais tradicionalmente tem um alto custo computacional, pois os algoritmos s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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10. Buckling analysis of laminated sandwich beam with soft core
Stability analysis of laminated soft core sandwich beam has been studied by a C0 FE model developed by the authors based on higher order zigzag theory (HOZT). The in-plane displacement variation is considered to be cubic for the face sheets and the core, while transverse displacement is quadratic within the core and constant in the faces beyond the core. The
Lat. Am. j. solids struct.. Publicado em: 2012-06
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11. Current transformers with nanocrystalline alloy toroidal core: analytical, computational and experimental studies
In this paper are presented theoretical analysis and experimental results concerning the performance of toroidal cores used in current transformers. For most problems concerning transformers design, analytical methods are useful, but numerical methods provide a better understanding of the transformers electromagnetic behaviour. Numerical field solutions may
Mat. Res.. Publicado em: 29/05/2012
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12. Soluções aproximadas para algoritmos escaláveis de mineração de dados em domínios de dados complexos usando GPGPU / On approximate solutions to scalable data mining algorithms for complex data problems using GPGPU
The increasing availability of data in diverse domains has created a necessity to develop techniques and methods to discover knowledge from huge volumes of complex data, motivating many research works in databases, data mining and information retrieval communities. Recent studies have suggested that searching in complex data is an interesting research field
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/09/2011