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Recent observations of WSr and 13'Cs deposition at the Meteorolog$aI Research Institute, Tsukuba, are presented. The annual deposition of Sr and 13'Cs in the 1990s was around 0.15 and 0.3 Bq rn., respectively. Although a spring explain this seasona P eak was found in the deposition, it is difficult lo pattern only by the stratospheric fallout. The annual deposition trend of I3 Cs was found IO be well fitted by the stratospheric constant and an additional constant term. The variation in the ratios of the radioactivity and corresponding stable elements did not show the maxima in the deposition peak months in Spring.
Reduction of nltrlc oxlde by ectlvated carbons as both support and reducing agent Gao, Z. et al., Cuihua Xuebao, 1996, 17, (2), 117-122. (In Chinese) The paper describes how activated carbons from coconut shell, hawthorn nut, mountain peach nut and coal were used in the reduction of NO as both support and reducing agents.
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A novel 3-step regenerative, high-temperature process for coal gas desulphurization using calcined limestone as a sorbent includes: (1) reaction of H,S with CaO (sulphidation), (2) partial oxidation with SO, in a second step to obtain CaSO, and S", and (3 k regeneration of the solid mixture of CaS a
Discusses the use of remote-sensin 8. technology and its benefits to the mining industry. Remote-sensing tee mques reveal clues about what may be under the soil, from mineral deposits to remnants of prehistoric villages. The technology is used by mining and petroleum companies.