Post-processing of PIV (particle image velocimetry) data typically contains three following stages: validation of the raw data, replacement of spurious and missing vectors, and some smoothing. A robust post-processing technique that carries out these steps simultaneously is proposed. The new all-in-one method (DCT-PLS), based on a penalized least squares approach (PLS), combines the use of the ...

Post-processing in computational fluid dynamics as well as processing of fluid flow measurements needs robust methods that can deal with scalar as well as vector fields. While image processing of scalar data is a well-established discipline, there is a lack of similar methods for vector data. This paper surveys a particular approach defining convolution operators on vector fields using geometri...

Woodland detection in an urban environment was conducted using Ikonos multispectral images over the city of Sherbrooke (Quebec, Canada). The detection process is composed of two parts. The first is a combination-based classification that uses radiometric and color-texture information. The color-texture feature is derived by integrative scheme using the wavelet transform. The second part is an o...

Some access pricing regimes derive allowable cash flows to provide investors with an expectation of receiving a required real pre – (company) tax rate of return, with compensation for inflation built in via the allowable return of capital (depreciation). The required real pre-tax return is derived from nominal (or real) post-tax required returns. Techniques commonly used to transform post tax i...

In general, it is very straightforward to store concept identifiers in electronic medical records and represent them in messages. Information models typically specify the fields that can contain coded entries. For each of these fields there may be additional constraints governing exactly which concept identifiers are applicable. However, because modern terminologies such as SNOMED CT are compos...

Post-mortem project reviews often yield useful lessons learned. These project reviews are mostly recorded in plain text. This makes it difficult to derive useful overall findings from a set of such post-mortem reviews, for example to monitor and guide a software process improvement program. We have developed a five-step method to transform the qualitative, natural language type information pres...

A corrector is used to reduce or eliminate statistical weakness of a physical random number generator. A description of linear corrector generalizing post-processing described by M. Dichtl at FSE’07 [4] is introduced. A general formula for non linear corrector, determining the bias and the minimal entropy of the output of a function is given. Finally, a concrete and efficient construction of po...

While there is a very long tradition of approximating a data array by projecting row or column vectors into a lower dimensional subspace the direct approximation of a data matrix through smoothing is less common. Applications of data array smoothing include visualization; filtering of less relevant, and thus harder to interpret, values; and as a means towards compression. Wavelet smoothing or r...

In  this  study,  amino  functional  groups  were  chemically  bonded  to  the  surface  of  newly synthesized  KIT-6  mesoporous  magnetite  nanoparticles  (MMNPs)  by  post-toluene  reflux synthesis method.  This method  treats  calcined mesoporous  nanoparticles with  the  functional organosilanes.  Physical  and  chemical  structures  of  the  synthesized  mesoporous  magnetite nanoparticle...