Abstract: A technique is being developed for detecting silver in very low concentrations in water. It is effective down to concentrations of 5 ? 10?11 gm ml?l. The method involves collecting and concentrating the silver ions on an ...

Abstract: Details are presented of the experimental processes involved in the concentration of silver ions from water. Monitoring procedures which lead to improvements in reliability in the techniques are described. The performance ...

Abstract: Samples of rain and small hail have been analyzed for their silver content. The samples were collected during both seeded and unseeded storms in the project area of the 1968 Alberta Hail Studies Program. The natural ...

Abstract: Measurements were made of the concentration of silver in precipitation samples collected in areas of Australia where cloud seeding with silver iodide has occurred. Silver was detected in 41 of 63 ?seeded? samples and in ...

Abstract: Measurements have been made of the time lag which silver iodide particles exhibit in the nucleation of ice crystals at temperatures between ?8C and ?16C. The time tag is approximately exponential, the decay constants being ...

Abstract: In association with Grossversuch IV, a program designed to test the Soviet hail suppression method by seeding clouds with AgI from Oblako rockets, a complementary program was conducted by l'Observatoire du Puy-de-Dôme and ...

Abstract: The observed size of ice crystals obtained by sampling in Formvar is compared to the theoretical size an ice crystal should attain when growing by diffusion. The variables which are not fixed by environmental conditions ...

Abstract: Detailed analyses of three storms seeded in the National Hail Research Experiment (NHRE) during 1974 investigated the relationships between the occurrence of silver (from AgI) in precipitation and both the seeding activity ...

Abstract: Laboratory techniques have been developed for concentrating and isolating silver from aqueous samples. When these concentrated samples are activated in a thermal neutron flux of 4 ? 1012n cm?2 sec?1, quantitative measurements ...

Abstract: Thermal neutron activation methods have been applied to the determination of silver content in samples of hail, rain and snow. Hail and rain samples were collected in South Dakota in regions where AgI cloud seeding was ...