The participants' best-corrected distance acuity was measured using a rear-illuminated Snellen chart at 6 meters (about 20 feet, or closer if the participant was not able to read the 6/60 optotype) and converted to LogMAR notation for the purposes of analysis.
Overview. Vanadium is a trace mineral found in many foods. Scientists think your body may need vanadium in very small amounts for normal bone growth. Scientists aren't sure exactly what effects vanadium may have, or what amount might be helpful, however, they know high doses of vanadium are likely to be unsafe.
It is usually added in the form of ferrovanadium, a vanadium-iron alloy. Vanadium steel alloys are used in gears, axles and crankshafts. Titanium-aluminum-vanadium alloy is used in jet engines and for high-speed aircraft.Vanadium foil is used in cladding titanium to steel.Vanadium-gallium tape is used in superconducting magnets. Vanadium pentoxide is used in ceramics and as a catalyst for the production of sulfuric acid.anadium steel alloys are used in gears, axles and crankshafts. Titanium-aluminum-vanadium alloy is used in jet engines and for high-speed aircraft. Vanadium foil is used in cladding titanium to steel.