Only about 66% of domestic wastewater is treated, whereas the rest is discharged into rivers and the ocean. About 20% of the industries treat their residual waters (Universidad de Chile, 2006). In the northern region, consumptive water use and nonconsumptive water use currently exceed the ...
The types of young men and women normally expected to be entering seagoing professions, seem to be more interested in careers in the oil and technology based industries, which inevitably provide better benefits. When I first went to sea, some three decades ago, there was a certain charisma ...
The ruby industry is very lucrative [5] but it is far more complex than many ore industries such as iron, silver, or gold because the values of ruby do not depend only on weight or purity. The value depends on a much more complex quality, with grading systems including many artistic, ...
Weakly absorbing aerosols are usually emitted by anthropogenic activities, such as SO2 produced by industries, injected into the air and translated to sulfate by gas-to-particle conversion, strengthening the abilities about solar scattering and extinction of aerosol. As shown in Figure 7, the high ...