The distribution of grain size parameters along 11 km stretch of the beach sediments between Karikal and Nagore, reveals that the mean grain size exhibits a marked decreasing trend on either side of the mouth of the Tirumalairajanar River which flow from west to east. The sediments are mainly of medium to coarse grained, moderately sorted, near-symmetrical skewed to fine skewed and leptokurtic ...

Phosphate interacts with inorganic sediment particles through sorption reactions in streams. Collectively, this phosphorus (P) buffering mechanism can be an important determinant of soluble reactive P (SRP) concentrations. If sorption reactions control SRP concentrations in a stream, then differences in sediment characteristics may cause spatial differences in SRP concentrations. This predictio...

A laboratory study was made of the effects of crushed particles, both coarse and fine aggregate, on the stability of bituminous-aggregate mixtures. Crushed limestone and varying percentages of crushed and uncrushed gravel were used as the coarse aggregate while variation in the shape of the fine aggregate was obtained by using rounded natural sand and crushed-stone sand. These aggregates were u...

Recently, Hilhorst (2000) presented a theoretical model describing a linear relationship between bulk electrical conductivity, o0, and dielectric constant, K„, in moist soil. Hilhorst (2000) found that using this linear relationship, measurements of the pore water electrical conductivity, ap, can be made in a wide range of soil types without soil-specific calibrations. If accurate measurements ...

Liquorpheresis (cerebrospinal fluid filtration) comprises a therapeutical approach that has been proposed to treat several neurological conditions where antibodies, inflammatory mediators, or abnormal peptides are the cause or play an important role in the pathogenesis of the disease. Continuous or intermittent cerebrospinal fluid (CSF) replacement may be an alternative approach not explored th...

Traditionally, wastewater treatment has been a combination of physical, biological, and chemical treatment methods. Physical methods of treatment include settling and sand filtration, biological methods include aerobic activated sludge, denitrification, and anaerobic digester treatment systems, while chemical methods include phosphate removal, dye and endocrine disruptor removal, and disinfecti...