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In the literature a number of taxonomies are present which categorize the functions of GIS. While such taxonomies used to be more of scientific interest they are now getting more practical relevance due to the adoption of the OGC Web Processing Service (WPS) specification. While this standard currently allows specifying arbitrary geoprocessing functionalities, for ensuring interoperability we a...

In this study, the performance of one most popular household drinking water purification systems (WPS) Turkey was evaluated. Tap and purified samples were taken from İpsala District (Thrace Region). A total 23 significant quality assessment parameters including essential toxic metals (pH, TDS, EC, turbidity, Cl, NO3, SO4, PO4, BOD, COD, B, Al, Cr, Mn, Ni, Cu, Zn, As, Sr, Mo, Sb, Ba, Pb) measure...

Abstract Soil compaction is one of the issues that many agricultural lands suffer from, and main reasons for that, wheel traffic which pass through field. Therefore, this study was conducted with aim studying effect machinery type tillage on some studied characteristics (drawbar power (DP), wasted by slippage (WPS), clods greater than 100 mm (CGT)) at soil moisture content 17-20%. The experimen...

The recently approved OGC Web Processing Service (WPS) specification defines a generic interface for providing geo-processing functionality in a standardized way. Web Services in general can be composed in service chains for carrying out more complex tasks. This paper presents an approach for offering a chaining tool for WPS processes in a simple as possible way. Basic functionalities can be co...

In this paper we introduce the class Weibull power series (WPS) of distributions which is obtained by compounding Weibull and power series distributions, where compounding procedure follows same way that was previously carried out by Adamidis and Loukas (1998). This new class of distributions has as particular case the two-parameter class exponential power series (EPS) of distributions, which w...

Taiwan is located at the collision boundary of the Philippine sea plate and the Eurasian plate. The mountain terrain is precipitous and the region, on the whole, is characterized by fragile rocks and frequent seismic activity. In addition, the concentrated torrential rainfall brought by typhoons cause extensive disasters, debris flow, the most serious disaster caused by torrential rainfall, lea...

In this paper, the problem of fair scheduling in a wireless network is formulated as an assignment problem and an Optimal Radio Channel Allocation (ORCA) strategy is proposed for fair bandwidth allocation in a centralized manner. Simulation results show that the performance improvement due to ORCA can be significant compared to other wireless fairqueuing mechanisms proposed in the literature su...

A service is presented that assesses the quality of measurements of daily global irradiation or means of global irradiance acquired by a ground station. Measurements are checked against models resulting in a measure of plausibility. This on-line service obeys the WPS (Web Processing Service) standard of the Open Geospatial Consortium. It is free of use and can be integrated into routine operati...