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The building-block of the axoneme is the microtubule; each axoneme is composed of several microtubules aligned in a characteristic pattern known as the 9+2 axoneme as shown in the image at right. Nine sets of doublet microtubules (a specialized structure consisting of two linked microtubules) form a ring around a central pair of single ...
The 9-2 was thought to developed in a joint venture with another automaker, probably European. Although little is known about the design, those who have seen it report it is the same teardrop shape as the 1949 to 1956 Saab 92 , but also futuristic with the front similar to the new Saab 9-5 . [ 5 ]
Microtubule arrangement in a 9+2 axoneme of bronchiolar cilia. Microtubule-organizing centers function as the site where microtubule formation begins, as well as a location where free-ends of microtubules attract to. [2] Within the cells, microtubule-organizing centers can take on many different forms.
The latter formation is commonly referred to as a "9+2" arrangement, wherein each doublet is connected to another by the protein dynein. As both flagella and cilia are structural components of the cell, and are maintained by microtubules, they can be considered part of the cytoskeleton. There are two types of cilia: motile and non-motile cilia.
The Ordnance BL 9.2-inch howitzer was a heavy siege howitzer that formed the principal counter-battery equipment of British forces in France in World War I. It equipped a substantial number of siege batteries of the Royal Garrison Artillery .
British 9.2 inch guns originated from a request by the Admiralty in 1879 for a gun comparable to Krupp's 24 cm MRK L/25.5, a very powerful 9.45 inch gun tested in August 1879. The Admiralty submitted its request to the Committee on Ordnance , which was considering returning to breech-loading artillery after Britain's brief return to muzzle ...
The 9.2-inch Mk XI gun introduced in 1908 increased the bore length to 50 calibres in an attempt to increase the velocity still further, but proved unsuccessful in service and was phased out by 1920. The Mk X was hence the final Mark of 9.2-inch guns in widespread British Commonwealth service. The BL 9.2 also affected the development of radar.
The Northrop YA-9 is a prototype attack aircraft developed for the United States Air Force A-X program. The YA-9 was passed over in preference for the Fairchild Republic YA-10 that entered production as the A-10 Thunderbolt II .