Continuous mixing computer control

In continuous dyeing there are many variables and the rapidity of the dyeing process requites many adjustments during the period in which several thousand meters of textile are dyed. Instmmental science has continued to advance rapidly so that continuous ranges are available which are entirely computer-controUed except for the makeup of the dye mix. These units feature computer control and closed-cincuit television and continuous color measurement techniques. 

The FIA system is defined as an automated method of an analytical procedure in which a liquid sample is injected into a continuous carrier flow, and this mixture is driven to the detection cell. During transport, the sample is subjected to several operations such as dilution, incubation, mixing, and dialysis (Ruzicka and Hansen, 1988). The monose-gmented FIA is a kind of flow system in which the sample is transported between two air bubbles, but the flow is not continuous and the bubbles need to be purged before they enter the detection cell (Calatayud, 1996). The most sophisticated FIA manifolds are those based upon computer-controlled automated systems, such as SIA and MSFIA (Magalhaes et ah, 2009). 

The advantages and limitations of the continuous mixing of rubbers are discussed. Reference is made to the MVX series of mixers and associated computer control systems manufactured by Parrel. 

There are not many uses for dysprosium. Scientists continue to experiment with it as a possible alloy metal (it has a high melting point) to be mixed with steel to make control rods that absorb neutrons in nuclear reactors. There are only a few commercial uses for dysprosium, such as a laser material and as a fluorescence activator for the phosphors used to produce the colors in the older TV and computer cathode ray tubes (CRTs). When combined with steel or nickel as an alloy, it makes strong magnets. 

Data Acquisition and Control System. Computer-based system that controls all parameters of HPLC instrument (eluent composition (mixing of different solvents) temperature, injection sequence, etc.) and acquires data from the detector and monitors system performance (continuous monitoring of the mobile-phase composition, temperature, backpressure, etc.). 

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