Corrosion is a common problem in reinforced concrete construction. can be initiated by cracks forming on the surface of concrete. Widening will facilitate ingress aggressive liquids or gases from surrounding environment, which cause problems with reinforcement and form corrosion. Self-healing methods make efforts to prevent crack widening. The self-healing method an effort repair damage that do...

This study investigates the efficacy of conventional and modified bio-sand filters as a low-cost filtering device for treatment groundwater contaminated with food waste leachate. Two kinds materials, areca nut husk water hyacinth stems, have been selected to alter filter. In filters, ashes these wastes are used filter medium. The ashes' physical characteristics, such pH, ash content, moisture m...

The in vivo effect of trimethyltin chloride (Me(3)SnCl), free base meso-tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl)porphyrin (R'(4)PH(2)) and their equimolar mixture, on the enzymatic activity of catalase (CAT), superoxide dismutase (SOD), and on the total content of free sulfhydryl groups has been studied in rat liver and kidney. It was demonstrated that the simultaneous treatment of tested an...

A caged, photocleavable derivative of dioleoylphosphatidylethanolamine (DOPE) called NVOC-DOPE was prepared by reaction of DOPE with 6-nitroveratryloxycarbonyl chloride. In contrast to egg phosphatidylethanolamine (EPE), NVOC-DOPE or its 1:1 mixture with EPE forms liposomes at both pH 7.4 and 5.0. Photolysis (lambda > 300 nm) of aqueous liposomal dispersions of NVOC-DOPE at pH 9.0, 7.4, or 5.0 ...

Public health is at risk from physical and chemical contaminants in the drinking water which may have immediate health consequences. The data from the current study was evaluated for groundwater quality in the rural villages of Neyshabur County in Iran. For determination of the essential physicochemical parameters, water samples were collected from 30 randomly-selected water wells during 2013 a...

The liquors were found to be adulterated with impure water from different sources. The measurement of pH, chloride concentration, total dissolved solid, total suspended solid and heavy metals reveals the adulteration in liquors. The duplicate brands contain rectified spirit, caramel, coloring agents, flavoring agents and essential oils which are not according to specifications. The adulterated ...

The present paper deals with variability in snow chemistry of various sites spread in six districts of the Kashmir Himalayan valley, experiencing frequent snow fall during winter ( Dec.Feb). Chemical composition of fresh snow samples shows wide changes in pH (5.8–7.3), dissolved oxygen content (22-26 mg L-1), and total alkalinity (2-3 mg L-1). The levels ( mg L-1) of calcium (13.3– 28 ), magnes...

In the current study, the qualitative status of potable well water was assessed using the groundwater quality index during a course of 4 years (2014-2017). This study was carried out with an aim to monitor the drinking water resources from 12 potable wells on the multivariate analysis basis and for determination of groundwater quality index, the following 13 physicochemical parameters including...

Waters from natural sources of the São Miguel Island in the Azores archipelago have been investigated regarding their corrosive action on metallic materials. The corrosive and encrusting characteristics of the waters have been established in terms of relevant chemical parameters (namely pH, conductivity, total dissolved solids (TDS), and concentrations of bicarbonate, calcium, magnesium, chlori...

The Wet Chemistry Laboratory on the Phoenix Mars Lander performed aqueous chemical analyses of martian soil from the polygon-patterned northern plains of the Vastitas Borealis. The solutions contained approximately 10 mM of dissolved salts with 0.4 to 0.6% perchlorate (ClO4) by mass leached from each sample. The remaining anions included small concentrations of chloride, bicarbonate, and possib...