Validation and application of three-dimensional auralisation during concert hall renovation

During the renovation of auditoria and concert halls, the acoustic quality is normally evaluated from measurements of impulse responses. One possibility for evaluating the acoustic quality from the measurements (the simulations) consists of convolving anechoic music with the measured (or simulated) impulse responses. In this way, a psycho...

On the universality of Keane & Adrian's valid detection probability in PIV

For the reliable estimation of velocity vector fields by means of particle image velocimetry (PIV), the cross-correlation functions calculated from the signal within each interrogation window must feature a distinct peak that represents the average shift of the particle image ensemble. A high valid detection probability (VDP) of the correct...

A new look on the “Valid Detection Probability” of PIV Vectors

For the reliable estimation of velocity vector field s by means of 2D and 3D particle image velocimetry (PIV), the cross-correlation functions calculated from the signal within each interrogation window must feature a distinct peak that represents the average shift of the particle image ensemble. A high valid detection probability (VDP) of the...

A Study of Pair Correlation Functions Using Classical DFT

At the heart of physics of fluids are particle distribution functions. If all of these functions of a fluid are known, the state can be fully described. With a universal theory of particle distribution functions, physics of fluids is done. Of particular interest is the radial distribution function (rdf), which is related to the second particle...

Spin-Echo Small-Angle Neutron Scattering applied to colloidal systems

Activated dynamics in a two-dimensional Ising spin glass: Rubidium copper cobalt fluoride (Rb2Cu1-xCoxF4)

Correlation-Function Techniques: An analysis of their performance and capabilities

The interest in correlation-function techniques shown by a number of groups working at the RWS is mainly due to the two following reasons: 1) Boundary-values determination and 2) Prediction. For these reasons, preliminary studies were undertaken some time ago at RWS. As part of these studies, correlation functions between a number of stations on...