Purpose: Water is very important to the existence of humans, though could also serve as vehicle of pathogenic organisms and dangerous organic and inorganic matters. The physicochemical and microbiological analysis of seven borehole water samples used by AkungbaAkoko residents were carried out with the aim of ascertaining their suitability or otherwise for human consumption. Methods: The total h...

OBJECTIVE To evaluate the hardness (KHN), color stability (DE), and superficial micromorphology of two categories of composites after immersion in either distilled water or grape juice for up to 45 days. MATERIAL AND METHODS Cylindrical specimens (6 mm diameter x 2 mm thick) were obtained according to the factors: composite [Opallis (FGM) and Filtek Z350XT (3M ESPE)]; immersion solution (dist...

The vacancy of natural resources is undoubtedly limited by time. sustainable development principle recommends modern technology for its protection and renewal. This project conducted analyses on two underground water sources in the north Algeria (Mechroha Province). Besides, use hardness factor adoption titration method, which determining concentration an unknown solution using a known concentr...

Background: In recent times, the decreasing groundwater reserves due to over-consumption of water resources and the unprecedented reduction of precipitation, during the past 1 decades, have resulted in a change in the volume and quality of water with time. The aim of this study was to determine the spatial and temporal variations of hardness and total dissolved solids in drinking water resource...

The effect of water uptake on the mechanical properties of low-k organosilicate glass Water uptake in porous low-k dielectrics has become a significant challenge for both back-end-of-line integration and circuit reliability. The influence of absorbed water on the mechanical properties of plasma-enhanced chemical-vapor-deposited organosilicate glasses (SiCOH) was investigated with nanoindentatio...

During the last decade, there has been a concern about the relation between aluminum residuals in treated water and Alzheimer disease, and more interest has been considered on the development of natural coagulants such as chitosan. Chitosan, a natural linear biopolyaminosaccharide, is obtained by alkaline deacetylation of chitin. The present study was aimed to investigate the effects of alum as...