J. H. Sheng

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EXTRACT OF WORK AND CONCLUSIONS Postulations and dimension of work: The LPG recovery plant operates on Natural Gas Liquids (NGL), entering from two sources, with a total flowrate of 33 tonnes/hour and produces Liquified Petroleum Gas (LPG) along with Natural Gasoline as the primary products. The process is studied using conventional columns and also Petlyuk(More)
—Measurements of the natural propagation of UHF radio waves on an underground train are reported. Of prime interest are the natural propagation attenuation and the median signal level behavior. The propagation attenuation rates or the median signal level behaviors are found to correlate with the train carriages and frequency. On the front carriage, the(More)
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