Results 91 to 100 of about 104,421 (228)
TPVs PA/NBR: sistema de reticulação e propriedades PA/NBR TPVs: crosslink system and properties
Polímeros, 2012 Elastômeros termoplásticos vulcanizados, TPVs, à base de co-poliamida (PA6,6-6) e borracha nitrílica (NBR), foram preparados por vulcanização dinâmica em câmara de mistura a partir de um sistemas de vulcanização tendo como componente principal o peróxido de dicumila e os coagentes bismaleimida e enxofre. Variando-se a proporção dos componentes, estudou-
Enio C. M. Fagundes, Marly A. M. Jacobi
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Structural Concrete, EarlyView.Abstract Several design codes prescribe punching shear verification in flat slabs, especially for common scenarios such as concentric punching and punching under bending moments. Although openings are generally addressed in design codes, asymmetric openings are often neglected.
Ricardo de Paula Randi +3 more
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Structural Concrete, EarlyView.Abstract Reinforced concrete flat slabs are widely employed in contemporary architecture due to their structural efficiency and construction simplicity; however, their susceptibility to punching shear failure remains a critical design concern, particularly at slab–column connections where concentrated loads occur.
Jeovan Pereira das Virgens +4 more
wiley +1 more source
Nonlinear analysis of flat post‐tensioned concrete slab–edge column connections
Structural Concrete, EarlyView.Abstract This study presents nonlinear finite element analyses to investigate the punching shear behavior of unbonded post‐tensioned concrete flat slabs at slab‐edge column connections. A parametric analysis was conducted to evaluate the influence of four critical parameters on the punching shear resistance: the distribution of prestressing tendons ...
Igor Gonçalves +4 more
wiley +1 more source
Hecheng xiangjiao gongyeChlorinated 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
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Discrete Relaxation Spectrum and K-BKZ Constitutive Equation for PVC, NBR and Their Blends
Applied Rheology, 2004 Frequency sweep experiments were performed on poly(vinyl chloride) (PVC) and acrylonitrile butadiene rubber (NBR) as well as their miscible blends PVC/NBR (70/30), PVC/NBR (50/50), and PVC/NBR (30/70) in oscillatory shear.
Sodeifian Gholamhossein, Haghtalab Ali
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, 2016 Networks are a fundamental tool for modeling complex systems in a variety of domains including social and communication networks as well as biology and neuroscience. Small subgraph patterns in networks, called network motifs, are crucial to understanding
Benson, Austin R. +2 more
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Structural Concrete, EarlyView.Abstract The reinforcement corrosion is one of the main degradation mechanisms in reinforced concrete structures. Its effects can harm structural elements by reducing mechanical capacity, mainly due to diminished reinforcement properties and expansive reactions within the concrete.
Vinícius D'Almeida Rodrigues Ramos +3 more
wiley +1 more source
"Comparison of structure and properties of nitrile rubber 40 H and 3604 by hot polymerization"
Hecheng xiangjiao gongyeMolecule structure and glass transition temperature of raw rubber of the new nitrile rubber (NBR) 40 H by hot polymerization, and Mooney viscosity and curing characteristics of the compound, as well as thermal-oxidative aging resistance and oil ...
XU Bina, ZHANG Hai-yib, FAN Yong-jiangc, LI Dong-hongc, CUI Guo-fenga, LIU Qianga, GAO Wei-guangc
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A Geometric Perspective on Sparse Filtrations [PDF]
, 2015 We present a geometric perspective on sparse filtrations used in topological data analysis. This new perspective leads to much simpler proofs, while also being more general, applying equally to Rips filtrations and Cech filtrations for any convex metric.
Cavanna, Nicholas J. +2 more
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