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Room temperature hydrogen gas sensor nanocomposite based on Pd-decorated multi-walled carbon nanotubes thin films
(Elsevier Science Sa, 2011-09)
Multi-walled carbon nanotubes (MWCNTs) are successfully processed in the form of thin films (buckypapers), and their morphology and electrical behaviour are characterized. The MWCNTs are synthesized by the floating catalyst ...
Navier type exact analytical solutions for vibrations of thin-walled shallow shells with rectangular planform
(Elsevier, 2021-03)
Exact analytical solutions for the free vibrations of Thin-Walled shallow shells are presented in this work. The shells considered have rectangular planform and two principal constant curvatures. Past treatment of this ...
Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería, 2016-01-01)
Ferrocement thin walls are the structural elements that comprise the earthquake resistant system of dwellings built with this material. This article presents the results drawn from an experimental campaign carried out over ...
Glass macrofiber self-compacting concrete: Fiber distribution and mechanical properties in thin walls and slabs
(Wiley Blackwell Publishing, Inc, 2019-04)
Alkali-resistant glass macrofibers for concrete reinforcement are recently available; reductions in thermal or drying shrinkage cracks and the replacement of conventional welded mesh in some structural elements appear as ...
Parametric and non-parametric probabilistic approaches in the mechanics of thin-walled composite curved beams
(Elsevier, 2015-05)
In this paper we perform a quantification of the uncertainty propagation of the dynamics of slender initially curved structures constructed with fiber reinforced composite materials. Depending on the manufacturing process, ...
Reliability-based evaluation of design guidelines for cold-formed steel-concrete composite beams
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2010)
This paper presents an analysis of design guidelines for steel-concrete composite beams, formed by concrete-filled cold-formed steel sections. The study is based on experimental results for connector resistance (push-out) ...
Visualização de estrutura de domínios em cerâmicas e nanoestruturas ferroelétricas via microscopia de piezoresposta
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2013-02-27)
In this work, the domain structure of a transparent ferroelectric ceramic of (Pb0,79La0,21)TiO3 (PLT 21) was investigated in detail by piezoresponse force microscopu (PFM) and a protocol of measurements and analysis of the ...
Combination of sequences of cell Divisions in the anther wall formation in Solanaceae species
(Elsevier Gmbh, 2003-05)
Anther wall formation was studied in six Solanaceae species (Bouchetia anomala, Capsicum tovari, Margaranthus solanaceus, Physalis viscosa, Withania adpressa, and Withania riebeckii). Combinations of at least three different ...
Micropatterning of single-walled carbon nanotube forest
(ELSEVIER SCIENCE SA, 2011)
In this work, high-aligned single-walled carbon nanotube (SWCNT) forest have been grown using a high-density plasma chemical vapor deposition technique (at room temperature) and patterned into micro-structures by ...
Finite element analysis of the total forming force of thin-walled metallic tube junctions employing elastomers
(2012-01-01)
Among the forming processes can be emphasized the metallic junction forming using elastomers. This forming process presents a considerable number of variables, as for instance: the definition of the necessary relationship ...