The adsorption of water from toluene was studied using the following desiccants: activated alumina, 3A molecular sieves, and 4A molecular sieves. Water isotherms were measured, mass-transfer rates were studied by means of batch-type kinetics experiments, and breakthrough data were determined by means of flow experiments using fixed beds of the desiccants. A linear driving force mass-transfer model was found to fit the breakthrough results, with equilibrium and mass-transfer parameters determined from the isotherm and kinetics experiments. The results showed that intraparticle diffusion offers the controlling resistance to the transport of water.
In this article, a hybrid group acceptance sampling plan (HGASP) is introduced for a truncated life test when the lifetime of an item follows transmuted rayleigh distribution. For specified consumer's risk, test termination time and group size, the minimum number of testers and acceptance number are determined. The operating characteristic values according to various quality levels are presented. The minimum ratios of the true average life to the specified life at the specified producer's risk are also found. The results are explained with examples. A comparative study of proposed hybrid group acceptance sampling plan based on transmuted rayleigh distribution with existing hybrid group acceptance sampling plan based on transmuted exponential distribution is also performed.
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