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Neodymium also has 15 known metastable isotopes, with the most stable one being 139m Nd (t 1/2 = 5.5 hours), 135m Nd (t 1/2 = 5.5 minutes) and 133m1 Nd (t 1/2 ~70 seconds). The primary decay modes before the most abundant stable isotope, 142 Nd, are electron capture and positron decay , and the primary mode after is beta minus decay .
In effect, the formula reduces the legal weight limit for shorter trucks with fewer axles (see table below). For example, a 25-foot (7.6 m) three-axle dump truck would have a gross weight limit of 54,500 pounds (24,700 kg), instead of 80,000 pounds (36,000 kg), which is the standard weight limit for 63-foot (19.2 m) five-axle tractor-trailer. [1]
The company supplied melt-spun Nd 2 Fe 14 B powder to bonded magnet manufacturers. The Sumitomo facility became part of Hitachi, and has manufactured but also licensed other companies to produce sintered Nd 2 Fe 14 B magnets. Hitachi has held more than 600 patents covering neodymium magnets. [9]
Class C removes the GVWR limit of Class C1, but the GTWR limit for the trailer of 750 kg remains. (This often referred to as a "Rigid Heavy Goods Vehicle" or "Rigid truck" licence) Class C1E allows for a class B or C1 vehicle and a trailer of more than 750 kg GTWR, so long as the combined gross weight does not exceed 12 000 kg.
The logarithmic term with weight ratios is replaced by the direct ratio between / = where is the energy per mass of the battery (e.g. 150-200 Wh/kg for Li-ion batteries), the total efficiency (typically 0.7-0.8 for batteries, motor, gearbox and propeller), / lift over drag (typically around 18), and the weight ratio / typically around 0.3.
Hand luggage compartments of an Airbus A340-600 aircraft (economy class), also referred to as "overhead bins" A portable scale used to check if hand luggage is within weight limits. The term hand luggage or cabin baggage (normally called carry-on in North America ) refers to the type of luggage that passengers are allowed to carry along in the ...
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The permissible exposure limit (PEL or OSHA PEL) is a legal limit in the United States for exposure of an employee to a chemical substance or physical agent such as high level noise. Permissible exposure limits were established by the Occupational Safety and Health Administration (OSHA). Most of OSHA's PELs were issued shortly after adoption of ...