in the last twenty years, due to a number of natural and anthropogenic reasons, many water sources have become poorer in quality with respect to micropollutants. an example of a micropollutant that needs to be removed is the chlorophenoxypropionic herbicide mecoprop (mcpp). mcpp is one of the nine pesticides used as an indicator to monitor pesticide concentrations in rivers because it is freque...

the levels of 19 organochlorine pesticides (ocps) in surface water and under water sedimentsfrom tanks located nearby the prime agricultural areas of kanyakumari district, tamil nadu, india wereinvestigated to evaluate their pollution risks. a total of 36 surface water samples at 9 sampling sites and27 sediment samples at 9 sampling stations were collected from tanks, which were the water sourc...

this study was conducted with the aim of determining surface water contamination with cysts of entamoeba histolytica using pcr in rasht city, northern iran.in this cross-sectional study, 49 water samples including 18 rivers and 6 wetlands were collected from different regions near the city of rasht in autumn of 2012. after filtration using 0.22 μm nitrate cellulose membrane filters, the samples...

conclusions these findings indicate that rehydration with honey drink improves running performance and glucose metabolism compared to plain water in the heat. thus, honey drink can be recommended for rehydration purpose for athletes who compete in the heat. results running distance in run-2 covered by the subjects in the honey drink hd trial (3420 ± 350 m) was significantly (p < 0.01) longer co...

The Atlantic Ocean is known to have higher sea surface salinity than the Pacific Ocean at all latitudes. This is thought to be associated with the Atlantic Meridional Overturning Circulation and deep water formation in the high latitude North Atlantic – a phenomenon not present anywhere in the Pacific. This asymmetry may be a result of salt transport in the ocean or an asymmetry in the surface ...

The recently developed maximum entropy production (MEP) model, an alternative parameterization of surface heat fluxes, is incorporated into the Weather Research and Forecasting (WRF) model. A pair of WRF cloud-resolving experiments (5 km grids) using the bulk transfer model (WRF default) and the MEP model of surface heat fluxes are performed to hindcast the October Madden-Julian oscillation (MJ...

in recognition of the value and limitations of available water resources in agriculture and the occurrence of periodic drought in iran, water conservation and optimal usage of available water is essential. the main objective of this study was to optimize field water management and cropping patterns using deficit irrigation. the effect of reducing water consumption on different growth stages usi...

The Namib grass Stipagrostis sabulicola relies, to a large degree, upon fog for its water supply and is able to guide collected water towards the plant base. This directed irrigation of the plant base allows an efficient and rapid uptake of the fog water by the shallow roots. In this contribution, the mechanisms for this directed water flow are analysed. Stipagrostis sabulicola has a highly irr...

A novel approach combining a two-fluid free surface solver and an efficient hybrid turbulence modelling technique has been presented for the simulation of breaking waves and their interaction with structures. The incompressible Navier-Stokes equations are solved by a cell centred finite volume method based on the artificial compressibility approach. The free surface (water/air interface) is tre...