In order to investigate the effects of non-linear springs in vibrating behavior of vehicles, the independent suspension of conventional vehicles could be modeled as a non-linear single degree of freedom system. The equation of motion for the system would be a non-linear third order ordinary differential equation, when considering the elasticity of rubber bushings in joints of shock absorber. It...

To facilitate the damping matching of dampers for vehicle passive suspensions, this paper proposes an analytical matching method of the optimal piecewise linear damping characteristics curve. Based on the vehicle vibration model, taking the suspension dynamic deflection as the constraint, by the vibration acceleration and the wheel dynamic load, an objective function about the relative damping ...

BACKGROUND Non-linear dielectric spectroscopy (NLDS) of microorganism was characterized by the generation of harmonics in the polarization current when a microorganism suspension was exposed to a sinusoidal electric field. The biological nonlinear response initially described was not well verified by other authors and the results were susceptible to ambiguous interpretation. In this paper NLDS ...

We present an integrated experimental and theoretical study of the dynamics rheology self-crosslinked, slightly charged, temperature responsive soft poly(N-isopropylacrylamide) (pNIPAM) microgels over a wide range concentration spanning sharp change in particle size intermolecular interactions across lower critical solution (LCST). Dramatic, non-monotonic changes viscoelasticity are observed as...

A simple, rapid, and sensitive fluorimetric method was developed validated to quantify quassia in polymeric nanocapsule suspensions non suspensions, using acetonitrile as a solvent. The excitation emission wavelengths were set at 397 nm 465 nm, respectively. calibration graph linear from 0.05 0.25 µg/mL with correlation coefficient of 0.9892. detection quantitation limits 2.4 0.8 µg/mL, validat...