The present invention pertains to a process for the preparation of pentaerythritol diphosphites via a one-pot, direct esterification of phosphorus trichloride with pentaerithritol, and either an alkylphenol or an arylalkylphenol which functions both as a reactant and as a solvent, with a phase transfer catalyst such as a quaternary ammonium salt. The neural network comprises a plurality of neural modules. The filtered luminance component data and filtered chrominance component data is subsequently merged onto a single luminancechrominance bus for further filtering andor encoding. The perfume liquid is sprayed out via the gaps so as to form uniform perfume mists. Advantageously, the second image is a magnified version of the first image.