Now showing items 1-10 of 35508
On the effects of mistuning a force-excited system containing a quasi-zero-stiffness vibration isolator
Nonlinear isolators with high-static-low-dynamic-stiffness have received considerable attention in the recent literature due to their performance benefits compared to linear vibration isolators. A quasi-zero-stiffness (QZS) ...
High-static-low-dynamic-stiffness vibration isolation enhanced by damping nonlinearity
High-static-low-dynamic-stiffness (HSLDS) nonlinear isolators have proven to have an advantage over linear isolators, because HSLDS nonlinear isolators allow low-frequency vibration isolation without compromising the static ...
On the shock performance of a nonlinear vibration isolator with high-static-low-dynamic-stiffness
(Elsevier B.V., 2014-04-01)
The vibration isolation characteristics of a high-static-low-dynamic-stiffness (HSLDS) isolator, which has geometrically nonlinear stiffness, have been well established both theoretically and experimentally in the recent ...
An investigation of a two-stage nonlinear vibration isolation system
This paper investigates the most desirable configuration of a two-stage nonlinear vibration isolation system, in which the isolators contain hardening geometric stiffness nonlinearity and linear viscous damping. The force ...
Isolation and molecular identification of potentially pathogenic Escherichia coli and Campylobacter jejuni in feral pigeons from an urban area in the city of Lima, Peru
(Universidade de São Paulo, 2015)
Feral pigeons (Columbia livia) live in close contact with humans and other animals. They can transmit potentially pathogenic and zoonotic agents. The objective of this study was to isolate and detect strains of diarrheagenic ...
Genotyping of Brazilian Giardia duodenalis human axenic isolates
(Universidade Estadual Paulista (UNESP), Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP), 2011-01-01)
Giardia duodenalis is a complex species that comprises at least seven distinct genetic groups (A to G), but only genotypes A and B are known to infect humans and a wide variety of other mammals. Regardless of biological, ...