Concept

Simple harmonic motion

Related publications (104)

Fractional Brownian motion and anomalous diffusion in vibrated granular materials

Daniele Mari, Gérard Gremaud, Alessandro Luigi Sellerio

We propose a new approach to the study of diffusion dynamics in vibrated granular systems. The dynamic of a granular material is mainly defined by dry friction interactions. This type of interaction is difficult to model for a large quantity of particles. ...

2012

2D Cantilever Array with Fixed Geometries and Varying Spring Constants for Life Science Applications

Nico de Rooij, Terunobu Akiyama, Sebastian Gautsch, Peter Vettiger, Frédéric Loizeau, André Meister

We present 2D cantilever arrays for parallel AFM and their fabrication process using a silicon nitride cantilever with molded tip as the base element of the array. They are designed either for (i) force indentation onto living cells and stiffness mapping, ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2011

Vibrational Relaxation and Intersystem Crossing of Binuclear Metal Complexes in Solution

Majed Chergui, Frank van Mourik, Andrea Cannizzo, Renske Marjan van der Veen

The ultrafast vibrational-electronic relaxation upon excitation into the singlet (1)A(2u) (d sigma*-> p sigma) excited state of the d(8)-d(8) binuclear complex Pt-2(P2O5H2)(4) has been investigated in different solvents by femtosecond polychromatic f ...

2011

Fluid-structure coupling for an oscillating hydrofoil

François Avellan, Mohamed Farhat, Philippe Ausoni, Olivier Braun

Fluid-structure investigations in hydraulic machines using coupled simulations are particularly time-consuming. In this study, an alternative method is presented that linearizes the hydrodynamic load of a rigid, oscillating hydrofoil. The hydrofoil, which ...

Elsevier2010

State-selective detection of velocity-filtered ND3 molecules

Andreas Osterwalder, Benjamin Bertsche

Translationally cold and slow ND3 is prepared by filtering the slow molecules from a thermal gas-phase sample using a curved electrostatic hexapole guide. This filter, like the curved quadrupole guide introduced by Rangwala et al. Phys. Rev. A 67 043406 (2 ...

2010

simple physical model for the simultaneous rationalisation of melting points and heat capacities of ionic liquids

Paul Joseph Dyson

The anal. of potential energy surfaces of ion pairs within the framework of an anharmonic oscillator model allows rationalization and prediction of m.ps. (Tmp) and heat capacities (Cp) of ionic liqs. (ILs) comprising di- and trialkylimidazolium or tetraalk ...

Royal Society of Chemistry2010

Adaptive Frequency Oscillators and Applications

Auke Ijspeert, Jonas Buchli, Ludovic Righetti

In this contribution we present a generic mechanism to transform an oscillator into an adaptive frequency oscillator, which can then dynamically adapt its parameters to learn the frequency of any periodic driving signal. Adaptation is done in a dynamic way ...

2009

Directly Observing Squeezed Phonon States with Femtosecond X-Ray Diffraction

Paul Beaud

Squeezed states are quantum states of a harmonic oscillator in which the variance of two conjugate variables each oscillate out of phase. Ultrafast optical excitation of crystals can create squeezed phonon states, where the variance of the atomic displacem ...

American Physical Society2009

New Estimation of Electromagnetic Sound Power Radiated by a PM Machine: An Active and Passive Control Guideline

This paper presents an initial state of the art about the estimation of the sound power emitted by electrical machines. The paper proposes a new method, more accurate, to evaluate the sound power emitted by a PM machine by a 3D FEM mechanical analysis. It ...

2009

Attention operates on non-retinotopic feature maps in visual search

Michael Herzog, Marco Boi

At the heart of feature integration theory is a master map which operates on dimension-based feature maps. It is assumed that these feature maps are organized retinotopically. If in conjunction search, for example, a horizontal green line has to be searche ...

2009

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