Abstract: A method (200) for ascertaining an air volume provided by means of an electric air pump (134) in an exhaust system (120) of an internal combustion engine (110), including detecting at least one activation parameter (5) of the air pump and ascertaining (220) a provided air mass flow rate (8) on the basis of a calculation specification from the at least one activation parameter (5) by utilizing an inertia of the air pump (134) and/or an inertia of the air upstream and/or downstream from the air pump (134) and/or a differential pressure from upstream from the air pump to downstream from the air pump. In addition, a processing unit and a computer program for carrying out a method (200) of this type is provided.

Abstract: A method (200) for ascertaining an air volume provided by means of an electric air pump (134) in an exhaust system (120) of an internal combustion engine (110), including detecting at least one activation parameter (5) of the air pump and ascertaining (220) a provided air mass flow rate (8) on the basis of a calculation specification from the at least one activation parameter (5) by utilizing an inertia of the air pump (134) and/or an inertia of the air upstream and/or downstream from the air pump (134) and/or a differential pressure from upstream from the air pump to downstream from the air pump. In addition, a processing unit and a computer program for carrying out a method (200) of this type is provided.

Abstract: The present invention provides, among other things, new methods for optimizing comparative genomic hybridization (CGH) data analysis. In particular, the methods of the invention provide increased sensitivity and specificity due to the implemented individual chromosome-based GC-wave correction. In certain embodiments, the log ratios of probes derived from each chromosome are corrected based on the chromosome's GC content slope, and certain selected chromosomes undergo chromosomal median adjustment. As a result, the log ratios of the probes on the array are normalized to be closer to zero (0) for diploid regions and thus, the GC waves are substantially reduced, resulting in a reduced false positive rate. Systems, computer readable media, and kits for use in the optimized CGH methods also are provided.