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On-line estimation of nitrification and denitrification capacity at Avedøre wastewater treatment plant

In this paper, on-line nitrification and denitrification rate estimation in an alternating wastewater treatment plant is discussed. The nitrification/denitrification rates are estimated on-line using continuous measurements of ammonia and nitrate. From the rate estimates, the plant capacity is derived. This information is useful in various ways: for early warning to prevent severe disturbances suc

Physical and radiopaque characterisation of acrylic bone cements containing an organobismuth compound as a radiopacifier

The water sorption and desorption characteristics of triphenyl bismuth (TPB)-cements were studied. The radiopacity of TPB was evaluated in order to assess its contrast in comparison to BaSO4-containing cements. It was observed that TPB-cements absorb/ desorp less water than BaSO4 cements (BS) due to the hydrophobic nature of TPB. It was shown that the addition of TPB to acrylic cements results in

Capturing everyday family practices through going-along. Methodological reflections.

In this paper I take my point of departure in a discussion around the research method of doing so called go-alongs, its possibilities and limits when trying to capture every day family practices and social differentiation. Here I am mostly interested in different aspects of work and care in relation to the practice of feeding in families with young children, a routine practice in every day family