Blood counting machines aspirate a very small amount of the specimen through narrow tubing followed by an aperture and a laser flow cell. Laser eye sensors count the number of cells passing through the aperature, and can identify them; this is flow cytometry.
In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
â Row/column extraction, cleansing, aggregation, integration, ordering, converting, segmenting, reformatting, and load acceleration. â ETL operations can be performed by CoSORT much faster on flat files, and usually in a single script, and in a single pass through the data.