A espécie humana, pré-histórica e extrativista, competidora da natureza ecocêntrica em seus primórdios, perverte sua lógica na modernidade com o modo de produção capitalista, tornando-se antropocêntrica tendendo ao estresse biosfera à destruição do planeta. Instituições como a ONU, para reverter cenário apocalíptico, propõem os ODS (Objetivos Desenvolvimento Sustentável) Agenda 2030. Ciência Ag...

The goal of this project is to generate data that demonstrate and quantify earlier improvements in joining, microstructural modifications to minimize isotropy effects, and environmental lifetime modeling, in terms that can be readily assessed by potential users of oxide dispersion-strengthened (ODS) alloys. A report has been prepared compiling results from the literature of ODS alloy joining tr...

BACKGROUND Occupational diseases (ODs) are often under-reported. OD Medical Committees of the Greek Social Security Institute (Idryma Kinonikon Asfaliseon-IKA) are believed to be the only reliable source of data on ODs in Greece. AIMS To analyse the results of OD Medical Committees of IKA on the claims for OD Disablement Benefit (ODDB) during a 5 year period. METHODS Two hundred and ninety-...

In this paper, the effect of MgO, BaO, Na 2 O and SrO addition to a pre-melted CaO-Al2O3 -Si 2 O synthetic slag on sulfur removal from plain carbon steel was studied under the same experimental conditions. The slags were pre-melted at 1400°C in an electric resistant furnace and desulfurization experiments were carried out in a high frequency induction furnace. The results showed that ...

BACKGROUND Retrospective studies to assess the distribution of oral diseases (ODs) are helpful in estimating the prevalence of oral diagnoses in the population, and thus help in preventive and curative services. Prevalence and frequency data for ODs are available from many countries, but information from Chile is scarce. MATERIAL AND METHODS This study investigated the frequency of OD in a Ch...

Vehicular SOx emissions have a huge detrimental impact on public health, catalytic converters, and the environment. Developing strategies to remove sulfur from diesel thus safeguard above is imperative. A series of SnO2–MoO3 mixed oxides mono MoO3 SnO2 were prepared by soft template method, calcined at 450 °C successfully tested in model oxidative desulfurisation (ODS). The SnO2/MoO3 mole ratio...

Oxide dispersion strengthened (ODS) alloys have been under intensive development over the past four decades due to their excellent high-temperature creep strength and good oxidation resistance. Nickel-based ODS alloys are the combination of gamma prime (γ’) strengthened superalloy with yttrium oxide evenly distributed throughout the matrix to allow the strength to be maintained to much higher t...