Simple methods to analyze the anomalous behavior o f NQ R parameters are presented. Unusual positive temperature coefficients o f antimony resonance frequencies in (N H 4)2SbF5 below the phase transition at 169 K were interpreted in terms o f ordering processes o f the ammonium ions. Calculation o f the EFG in LaF3 revealed that the translational diffusion of Li ions brings about an anomalous d...

The ecology of pathogens, and particularly their emergence in multi-host systems, is complex. New approaches are needed to reduce superficial complexities to a level that still allows scientists to analyse underlying and more fundamental processes. One promising approach for simplification is to use an epidemiological-function classification to describe ecological diversity in a way that relate...

Graphical User Interface (GUI) is pervasive to the extent that half of the code of the software systems written today is to produce the required GUIs. Test case generation for GUI based software systems is complex as it is necessary to include all possible sequences of events that may be exercised by the widget or end-user. The major issue with GUI based systems is that even a single change in ...

In this paper, a relaxed Hermitian and skew-Hermitian splitting (RHSS) preconditioner is proposed for saddle point problems from the element-free Galerkin (EFG) discretization method. The EFG method is one of the most widely used meshfree methods for solving partial differential equations. The RHSS preconditioner is constructed much closer to the coefficient matrix than the well-known HSS preco...

A meshless approach to the analysis of arbitrary Kirchhoff plates by the Element-Free Galerkin (EFG) method is presented. The method is based on moving least squares approximant. The method is meshless, which means that the discretization is independent of the geometric subdivision into “finite elements”. The satisfaction of the C1 continuity requirements are easily met by EFG since it requires...

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Solid-state 17O NMR spectra were obtained at 4.70, 11.75 and 19.60T for potassium hydrogen [17O(4)]dibenzoate (PHB) under both magic-angle spinning and stationary conditions. Spectral analyses yielded both the magnitude and orientation of the 17O chemical shift (CS) tensor and the electric field gradient (EFG) tensor for each of the two chemically distinct oxygen sites in PHB. For the oxygen si...