Using the technique of Padé Approximants for the correlation contributions of charged particles we are able to reproduce complex mathematical expressions by simple algebraic formulas. The Padé formulas are analytical expressions, which interpolate between certain density-temperature regions and are characterized by exact asymptotics. We present a semi-relativistic description of the thermodynam...

Padé approximants (PA) are constructed from the perturbative coefficients of the free energy through O(g5) in hot QCD. PA is shown to reduce the renormalization-scale dependence substantially even at temperature (T ) as low as 250 MeV. Also, Padé summation predicts that the free energy does not deviate more than 10 % from the Stefan-Boltsman limit for T > 250 MeV. PACS numbers: 12.38Cy, 12.38.M...

This is a comprehensive exposition of the classical moment problem using methods from the theory of finite difference operators. Among the advantages of this approach is that the Nevanlinna functions appear as elements of a transfer matrix and convergence of Padé approximants appears as the strong resolvent convergence of finite matrix approximations to a Jacobi matrix. As a bonus of this, we o...

Digital Terrain Model (DTM) databases are one of the more common tools for precise and continuous representation of our natural environment. New data acquisition technologies yield rapid and frequent updating of existing topographic databases (from here on it will be referred to as DTMs). These technologies present high accuracies and resolution levels that were not known until recently. As a r...

LIght Detection And Ranging (LIDAR) is a technique, which allows for measuring a huge amount of object point coordinates with accuracies up to some centimeters in short time. Their conversion into a highly accurate Digital Terrain Model (DTM) requires a careful handling of the single processing steps, from the flight planning until the manual revision of the generated DTM, considering the diffe...

Until 1997, there was no formal teaching in tropical medicine in Arabian Peninsular countries, although many tropical diseases (for example, malaria, schistosomiasis, leishmaniasis, filariasis), are endemic in the region. A six month, part time Diploma in Tropical Medicine and Hygiene (DTM&H) course was established in the Sultan Qaboos University, Muscat, Sultanate of Oman, in 1997, for small g...

A new method of DTM construction based on quadrangular irregular networks (QINs) that considers all the original data points and has a topological matrix is presented. A numerical test and a real-world example are used to comparatively analyse the accuracy of QINs against classical interpolation methods and other DTM representation methods, including SPLINE, KRIGING and triangulated irregular n...

In general, the scene change for video indexing could be detected by using an appropriate threshold. However, the single fixed threshold value used in previous researches cannot perform well for all videos equally. In this paper, we propose a dynamic threshold method(DTM) in order to improve the performance of the scene change detection. The proposed method utilizes variable parameters obtained...

Building a digital terrain model (DTM) from LiDAR data can successfully be performed using a few techniques, but the quality of the resulted model and the way the terrain information is handled during the processing phase remain a challenge. A new framework for creating a DTM from LiDAR data within ArcGIS ® utilizes the new ESRI data structure known as Terrain Data Set (TDS). This article prese...