Results 61 to 70 of about 7,234 (199)

Analysis of the influence of supplementary reinforcement on the behavior of reinforced‐concrete two‐pile caps subjected to concentric and eccentric loading

Structural Concrete, EarlyView.
Abstract This article examines the behavior of reinforced‐concrete pile caps on two piles under concentric and eccentric loading, with emphasis on the influence of horizontal and vertical supplementary reinforcement on load‐carrying capacity. Although the Strut‐and‐Tie method does not include this reinforcement in the internal equilibrium, it was found
Marcio Ferreira Cardoso, Ricardo de Paula Randi, Thomaz Eduardo Teixeira Buttignol, Luiz Carlos de Almeida, Leandro Mouta Trautwein   +4 more
wiley   +1 more source

Comparative biodegradation of natural rubber (NR), nitrile butadiene rubber (NBR), and NR/NBR blend rubber gloves by microbial consortium CK

Results in Materials
This study investigated the biodegradation of natural rubber (NR), nitrile butadiene rubber (NBR), and NR/NBR blend rubber gloves over 60 days using the consortium CK.
Natyamee Leblaeh, Ekwipoo Kalkornsurapranee, Kamontam Umsakul   +2 more
doaj   +1 more source

The influence of secondary reinforcement on a strut‐and‐tie model for the design of reinforced concrete corbels

Structural Concrete, EarlyView.
Abstract In precast concrete structures, optimizing the design of corbels by considering the contributions of secondary reinforcement elements can significantly improve construction economy, especially when corbels are repeated multiple times. This paper proposes a strut‐and‐tie model for reinforced concrete corbels subjected to vertical and/or ...
Rejane Martins Fernandes Canha, Kycianne Rose Alves de Góes Barros, Laynara Freitas Lima Vieira, Mounir Khalil El Debs   +3 more
wiley   +1 more source

Preparation and performance of thermoplastic polyurethane/nitrile rubber thermoplastic elastomers

Hecheng xiangjiao gongye
"In order to obtain thermoplastic elasto?鄄 mers with good mechanical properties, and balances of abrasion resistance and slip resistance, thermo?鄄 plastic polyurethane (TPU) was used as the matrix, nitrile rubber (NBR) was crosslinked and sheared into ...
BAI Yanying1, WANG Yanjun2, LI Wen2, GUO Jihong3, XU Junming3, XIAO Jianbin1
doaj   +1 more source

NBR 6023_2018 REFERENCIAS APRESENTACAO.pdf

, 2021
O presente trabalho intitulado NBR 6023: 2018 - Elaboração de referências compõe o Projeto BiblioCursos que tem por objetivo compartilhar nossos conhecimentos, utilizando os instrumentos tecnológicos disponíveis como o Google meet para capacitar em Pesquisa Científica os alunos e os professores do IFPI, o ganhou adeptos de todo o país e agora estamos ...
openaire   +1 more source

Regression‐based models for the torsional stiffness reduction factor in reinforced concrete beams under combined torsion and shear

Structural Concrete, EarlyView.
Abstract This paper presents a regression‐based methodology to estimate the Torsional Stiffness Reduction Factor (TSRF) of reinforced concrete beams under combined torsion and shear. A numerical database of 6816 samples was generated using the Combined Action Softened Truss Model (CA‐STM) implemented in Python, considering design guidelines prescribed ...
Khrys K. S. Medeiros, Jordlly R. B. Silva, Bernardo Horowitz   +2 more
wiley   +1 more source

Experimental assessment of column rectangularity in flat‐slab slab–column connections

Structural Concrete, EarlyView.
Abstract This paper presents an experimental investigation of the punching shear behavior of seven 3.00 m × 3.00 m × 0.20 m flat slabs without shear reinforcement, supported by internal rectangular columns. The column side lengths were varied to obtain aspect ratios, cmax/cmin, from 1.67 to 4.00, while the flexural reinforcement and overall slab ...
Liana de Lucca Jardim Borges, Ricardo de Paula Randi, Marília Gonçalves Marques, Elyson Andrew Pozo Liberati, Leandro Mouta Trautwein, Guilherme Sales Melo   +5 more
wiley   +1 more source

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

Environmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva, Diogo R. Pacheco, Gustavo Kirsch, Ronnilda M. G. Araujo, Bianca V. C. Oscar, William G. Matias, Sandro Santos, Bruno R. S. Figueiredo   +7 more
wiley   +1 more source

Playing with fire: Wolf response to active wildfires, fire fronts and smoke

Journal of Animal Ecology, EarlyView.
This study is one of the first, to our knowledge, to explicitly examine fine‐scale behavioural responses of a large carnivore to actively burning wildfires, fire fronts and smoke. The study found that wolves balanced the potential risks and benefits associated with wildfires, with implications for predator–prey dynamics in fire‐prone regions.
Skylar Boucher, Katherine Wolfenden, Michael Bridger, Jesse Tigner   +3 more
wiley   +1 more source

Calculation of stress-strain relationship of chlorinated polyethylene rubber/nitrile rubber blend by regulating cross-linking density of chlorinated polyethylene rubber phase

Hecheng xiangjiao gongye
Chlorinated polyethylene rubber (CM)/nitrile rubber (NBR) blend vulcanizates were prepared by mechanical blending method with CM and NBR as main raw materials, the cross-linking density of CM phase in CM/NBR blend vulcanizate and the stress-strain ...
SUN Zhen-hao, DENG Tao
doaj   +1 more source