Both! Ultrasound Tech, or Technician, is the same as Sonographer. You may also hear the term Diagnostic Medical Sonographer as well as Ultrasonographer.Each of these titles refers to the profession of operating ultrasound machines, which produce images used to diagnose and treat patients.oth! Ultrasound Tech, or Technician, is the same as Sonographer. You may also hear the term Diagnostic Medical Sonographer as well as Ultrasonographer.
Flip-flop hub. Flip-flop hubs, also called double-sided hubs, are rear bicycle hubs that are threaded to accept fixed cogs and/or freewheels on both sides. There are several different types of flip flop hubs available for different applications. Their main purpose is to allow changing between two different size gear ratios on one rear wheel without the added complications of a derailleur or internal hub gear, or between a fixed and freewheeling option.
Origin8 Flip-flop hubs. HU105 36 hole Front Silver $42.95. HU109 36 Hole Rear Silver $42.95. Double-sided fixed/fixed rear hub in 120 mm spacing, (adaptable up to 130 mm) with standard track 42 mm chainline to fit most track frames and many road bike conversions. Designed with a look reminiscent of the classic Campagnolo Nuovo Record, with milled flanges with lightening holes.