The aim of this paper is to study the popular models used for the simulation of major elements of a water quality system. The present study compares results of the CE-QUAL-W2 model with the WASP5 and MIKE11 models to assess the water quality of Pasikhan River. The contaminant loadings of Nitrate and Phosphate are utilized in the CE-QUAL-W2, WASP5 and MIKE11 simulations. This study is the first ...

Adherents of two-dimensionalist semantics have devised a powerful argument to show that the Kripke-Putnam semantics is in need of an overhaul. Kripke and Putnam take “Water is H2O” to be necessary as well a posteriori. But that cannot be true. For to claim that a proposition is necessary is to claim that it is true in all contexts, whilst to maintain that it is a posteriori or informative is to...

infiltration is a complex process that changed by initial moisture and water head on the soil surface. the main objective of this study was to estimate the coefficients of infiltration equations, kostiakov-lewis, philip and horton, and evaluate the sensitivity of these equations and their coefficients under various initial conditions (initial moisture soil) and boundary (water head on soil surf...

A software product line encodes a potentially large variety of software products as variants of some common code base, e.g., through the use of #ifdef statements or other forms of conditional compilation. Traditional information-flow analyses cannot cope with such constructs. Hence, to check for possibly insecure information flow in a product line, one currently has to analyze each resulting pr...

A filter paper replication system particularly useful for isolation of radiation-sensitive mutants of pigmented bacteria was devised. The fidelity of replication was high. Adhesion between a paper disk and a properly dried master plate provided adequate contact pressure. The replicas arising from this technique constitute a convenient apparatus for general application in isolation of clones sen...

Chromium exists usually in the (III) or (VI) oxidation states. In contrast to Cr(III), which is essential to mammalian systems, Cr(VI) is dangerous for humans due to its toxicity and carcinogenic properties. Cr(VI) compounds are highly soluble, mobile and bioavailable compared to Cr(III) species. Chromium is usually analyzed using instrumental methods such as AAS or ICP, which are accurate and ...