in the temperature range of 10 to 80 ºc and in a batch digester, a typical activated sludge was digested aerobically. reaction rate constants were determined by measuring the amounts of volatiles removed from the suspended solids at different time intervals during the process. the maximum value of the reaction rate constant (0.45 d-1) occurred in the temperature range of 55-60˚c. removal of ind...

We propose a concrete procedure of a Σ-protocol proving knowledge that a set of witnesses satisfies a monotone predicate in the witness-indistinguishable manner. Inspired by the high-level work proposed by Cramer, Damg̊ard and Schoenmakers at CRYPTO ’94, we provide a concrete procedure by extending the so-called OR-proof.

Density-functional theory has been applied to investigate systematics of sodium clusters Nan in the size range of n=39–55. A clear evolutionary trend in the growth of their ground-state geometries emerges. The clusters at the beginning of the series n=39–43 are symmetric and have partial icosahedral two-shell structure. The growth then goes through a series of disordered clusters n=44–52 where ...

Raw and pre-treated greaves and rinds, two meat-processing wastes, were assessed for biochemical methane potential (BMP). Combinations of temperature (25, 55, 70 and 120 °C), NaOH (0.3 g g(-1) waste volatile solids) and lipase from Candida rugosa (10 U g(-1) fat) were applied to promote wastes hydrolysis, and the effect on BMP was evaluated. COD solubilisation was higher (66% for greaves; 55% f...

The interest in using the pseudoelastic properties of NiTi wires in orthodontic practice arises chiefly from the expectation that they can afford low continuous forces at constant temperature. The reversion force developed by NiTi archwires depends, however, upon temperature since the superelastic force follows a Clausius-Clapeyron like equation. Actually the oral environment temperature is mod...

Anaerobic digestion is now commonly used for sludge treatment. Most industrial digesters operate under mesophilic (37°C) or thermophilic (55°C) conditions. These two regimes are considered as optimal for methane production. In this work, continuous sludge digestion has been operated at labscale at 5 different temperatures comprised between 28° and 55°C. The reactors were first inoculated with a...