South Africa Mobile Fiber Optic Cable

Telecommunications infrastructure in South Africa is advanced and widespread, comprising a combination of mobile, satellite, and fiber optic internet. Services are provided by many competing players in the private market, as well as by the through multiple public programs. The (ICASA) is the watchdog. [pdf]

North Korean aluminum-magnesium dust explosion-proof distribution box

The fine dust can be produced and suspended in the air during Al-Mg alloy polishing process, which has a high risk of powder explosion. To investigate the inhibition effects of ammonium salts and phosph. [pdf]