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The real parts of the CR functions are called the CR pluriharmonic functions. The Kohn Laplacian b {\displaystyle \Box _{b}} is a non-negative, formally self-adjoint operator. It is degenerate and has a characteristic set where its symbol vanishes.
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An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
Heavy duty commercial models can have bowl capacities well in excess of 25 US gallons (95 L) and weigh thousands of pounds (kilograms) but more typical home and light commercial models are equipped with bowls of around 1 US gal (3.8 L). Whether a mixer is a counter top or floor model depends on its size.
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Bowl feeders: consist of a bowl top with a spiral track inside the bowl. The component parts are delivered from the bottom of the bowl feeder up the track into the top of the feeder as the bowl vibrates. The parts are then positioned in the proper position. These parts are usually then fed on to a vibratory or air track [5]
Complement receptor (CR) 1, 3, and 4 function as opsonins which stimulate phagocytosis, whereas CR2 is expressed only on B cells as a co-receptor. Red blood cells (RBCs) also express CR1, which enables RBCs to carry complement-bound antigen-antibody complexes to the liver and spleen for degradation.
Hand crank for a winch on a sailboat - commonly referred to as a winch handle. A crank is an arm attached at a right angle to a rotating shaft by which circular motion is imparted to or received from the shaft.