A mortality study, concentrating on cardiovascular mortality, was undertaken among Finnish sulphite mill workers exposed to sulphur dioxide and sulphate mill workers exposed to hydrogen sulphide and organic sulphides. They had been employed continuously for at least one year between 1945 and 1961. National death rates were used for comparison and mortality was followed up until 31 December 1981...

The aim of the study is to effect gas pyrolysis resin on properties elastomeric composite materials. It has been established that in presence it thiuram vulcanizing system, relative rate vulcanization styrene-butadiene rubber increases, time reach optimum decreases, but degree proportional maximum torque, and when using a sulfur activates process, which facilitated by its composition active fun...

A significant part of the primary gold reserves in world is contained sulphide ores, many types which are refractory processing. The deposits ores will be main potential source production future. and silver can associated with micro- nano-sized inclusions Au Ag minerals as well isomorphous, adsorbed other species noble metals (NM) not thoroughly investigated. For gold-bearing Urals, distributio...