Even the slightest contamination, such as microscopic traces of dirt ... Normally, welders protect the area with a local flow of inert gas, like argon, to shield the molten metal. But with titanium, ...

The extraction of one ton of rare earth elements from ores produces approximately 2,000 tons of waste products, 1,000 tons of wastewater contaminated with heavy ... tube filled with low-pressure inert ...

Responding to Argon's standard, easy to use simulation Long Range Vapour Source (LRVS) gas emitters, signals are detectable up to 30 meters (95 feet). The simulation sources can be deployed in the ...

For years a textile mill gave farmers its sewage sludge as free fertilizer. Today the land is full of “forever chemicals.” For years a textile mill gave farmers its sewage sludge as free ...