Results 51 to 60 of about 2,747 (171)

Study of epoxy composites and sisal fibers as reinforcement of reinforced concrete structure

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
The application of structural reinforcement has presented a significant growth in the present days. The development of new materials for this purpose has aroused the interest of many researchers.
H. M. FRANCKLIN   +4 more
doaj   +2 more sources

Hybrid precoding and combining design for millimeter-wave multi-user MIMO based on SVD [PDF]

open access: yes, 2017
In this paper, we focus on the millimeter-wave multi-user multiple-input-multiple-output (mmWave MU-MIMO) systems and propose a low-complexity hybrid precoding and combining design, which is applicable to both fully-connected structures and sub-connected
Li, A, Masouros, C
core   +1 more source

Breaking the cycle of socioeconomic disadvantage: Parental reflexivity and motivation for change

open access: yesFamily Relations, Volume 75, Issue 1, Page 535-554, February 2026.
Abstract Objective The goal was to deepen the understanding of parental reflexivity by examining the relationship between its components and their association with parental motivation to engage in interventions, while analyzing professionals' expectations and perceptions of families' progress, in socioeconomically disadvantaged contexts.
Lúcia Fortio   +6 more
wiley   +1 more source

Identification of the prfC gene, which encodes peptide-chain-release factor 3 of Escherichia coli. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1994
The termination of protein synthesis in bacteria requires two codon-specific polypeptide release factors, RF-1 and RF-2. A third factor, RF-3, which stimulates the RF-1 and RF-2 activities, was originally identified in Escherichia coli, but it has received little attention since the 1970s.
O, Mikuni   +7 more
openaire   +2 more sources

Damage Identification in Large‐Scale Bridge Girders Using Output‐Only Modal Flexibility–Based Deflections and Span‐Similar Virtual Beam Models

open access: yesStructural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Damage identification (DI) methods using changes in static and modal flexibility (MF)–based deflections are effective tools to assess the damage in beam‐like structures due to the explicit relationships between deflection change and stiffness reduction caused by damage.
N. T. Le   +4 more
wiley   +1 more source

Método simplificado para a determinação da capacidade resistente de vigas de concreto armado reforçadas com polímero reforçado com fibras de carbono

open access: yesVetor, 2013
O objetivo deste trabalho é propor um modelo de cálculo simplificado para a determinação da capacidade resistente de vigas de concreto armado reforçadas à flexão com polímeros reforçados com fibra de carbono (PRFC).
Leandro Candido de Lemos Pinheiro   +1 more
doaj   +4 more sources

Sistema de reforço à punção de lajes lisas de concreto armado com polímeros reforçados com fibra de carbono (PRFC)

open access: yesRevista IBRACON de Estruturas e Materiais
Este artigo apresenta um estudo analítico de uma recente técnica de reforço de lajes lisas de concreto armado contra o fenômeno da punção. Trata-se da utilização de mantas de Polímeros Reforçados com Fibra de Carbono (PRFC) como armadura de cisalhamento.
G. S. Santos   +3 more
doaj   +1 more source

Analyses of reinforced concrete beams strengthened with CFRP under bending: theorical and computational approaches

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
The basic aim of this work is to compile the theoretical basis of ACI 440.2R: 2008 [1] with the NBR 6118: 2014 [2] in order to take into account the concepts of the Brazilian standard in flexural sizing of reinforced beams with CFRP (Carbon Fiber ...
A. S. C. SILVA, A. A. BANDEIRA
doaj   +2 more sources

Experimental study of concrete cylinders confined by composite materials [PDF]

open access: yes, 2010
Existen numerosas situaciones en las que es necesario mejorar la capacidad portante de elementos sometidos a solicitaciones de compresión, como columnas y pilas de puentes.
Kohan, Paul Hernán   +2 more
core  

Compression-Based Compressed Sensing

open access: yes, 2016
Modern compression algorithms exploit complex structures that are present in signals to describe them very efficiently. On the other hand, the field of compressed sensing is built upon the observation that "structured" signals can be recovered from their
Erkip, Elza   +3 more
core   +1 more source

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