The fast radial symmetry (FRS) transform has been very popular for detecting interest points based on local radial symmetry1. Though, FRS delivers good performance at a relatively low computational cost and is very well suited for a variety of real-time computer vision applications, it is not invariant to perspective distortions. However, even perfectly (radially) symmetric visual patterns in t...

Even though SQL has become widely accepted as a language for implementing relational database schemas and querying data, there are cases where its users experience the need for new language abstractions which would allow them to express data modeling and querying solutions in a clearer and simpler manner. This paper describes the idea of language extensions to SQL:1999 that come in form of inde...

Knowledge sharing behavior in virtual communities has long been an important area of research. Prior related research has primarily focused on relational virtual community (RVC) where knowledge sharing is regarded as a social exchange behavior, heavily depending on the social concerns such as reciprocity, identification and norms. The objective of our study is to investigate knowledge contribut...

In this paper, an effective procedure based on coordinate stretching and radial basis functions (RBFs) collocation method is applied to solve singularly perturbed differential-difference equations with layer behavior. It is well known that if the boundary layer is very small, for good resolution of the numerical solution at least one of the collocation points must lie in the boundary layer. In ...

We present laser-induced fluorescence (LIF) measurements of Xe II (4D7/2) in the FMT2 ion engine plume. Three 605.1 nm beams from a ring dye laser are focused through a single lens into a submillimeter interrogation volume, from which we collect LIF at 529.2 nm. Fourier-transform deconvolution of the LIF spectra returns ion velocity distribution estimates along the three laser beam directions. ...

Our R-band data show that the optical light from Malin 1 corresponds well with the >2-arcmin extent of the galaxy’s HI content and continues well beyond previously published V -band optical light radial profiles. Analysis of our image yields improved understanding of the galaxy’s properties. We measure ellipticity of 0.20 ± 0.03, implying inclination of 38 ± 3, and we trace the radial profile t...

BACKGROUND This work represents the first part of a progressive review of AuSPEN's 1999 Guidelines for Provision of Micronutrient Supplementation in Adult Patients receiving Parenteral Nutrition, in recognition of the developments in the literature on this topic since that time. METHODS A systematic literature review was undertaken and recommendations were made based on the available evidence...

In this research, a novel method is reported for the surface grafting of n-vinylcaprolactam as a thermosensitive agent and 3-allyloxy-1,2-propandiol with an affinity toward ceftriaxone onto modified magnetic nanoparticles by 3-mercaptopropyltrimethoxysilane. The grafted nanoparticles were characterized by Fourier Transform Infrared Spectroscopy, Elemental Analysis, and Vibrating Sample Magnetom...

We provide a rigorous treatment of the inverse scattering transform for the entire Toda hierarchy. In addition, we revisit the connection between trace formulas and conserved quantities from the viewpoint of Krein’s spectral shift theory.