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This paper presents a technique that supports a knowledge engineer in constructing a qualitative model of a physical device. The technique is specifically aimed at achieving a parsimonious model of device behaviour. First we explain why a model that is composed of general model fragments may still contain irrelevant particles. Then we present a technique(More)
The development of an enzyme-linked immunosorbent assay (ELISA) for the detection of residues of sulfachlorpyridazine (SCP) is described for the first time. The assay is highly specific for SCP, is simple to perform and has a lower detection limit of 0.65 ng/ml in assay buffer. In potential application of the assay to detect residues of SCP at the 0.1 mg/kg(More)
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