Motor unit recruitment refers to the activation of additional motor units to accomplish an increase in contractile strength in a muscle.A motor unit consists of one motor neuron and all of the muscle fibers it stimulates.All muscles consist of a number of motor units and the fibers belonging to a motor unit are dispersed and intermingle amongst fibers of other units.otor unit recruitment refers to the activation of additional motor units to accomplish an increase in contractile strength in a muscle.
Permanent-magnet Starter Motor. Permanent magnet starters were introduced on the vehicles in the late 1980s. Less weight and small size are the two advantages of these motors, compared to conventional types. This causes the permanent magnet starter to be more popular as less space is available for engine electrical in modern cars. The reduction in weight also contributes towards reduction in fuel consumption.
A neodymium magnet (also known as NdFeB, NIB or Neo magnet), the most widely used type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure.ass production is planned for 2017. As of 2012, 50,000 tons of neodymium magnets are produced officially each year in China, and 80,000 tons in a company-by-company build-up done in 2013. China produces more than 95% of rare earth elements, and produces about 76% of the world's total rare-earth magnets.