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The crest of curvature for the palatal and labial surfaces is located directly incisally to the cervical line. The labial surface of the crown is convex from the crest of curvature to the incisal edge.
The profile is the vertical aspect of the road, including crest and sag curves, and the straight grade lines connecting them. The cross section shows the position and number of vehicle and bicycle lanes and sidewalks, along with their cross slope or banking. Cross sections also show drainage features, pavement structure and other items outside ...
The lower second premolar proposes an exception as its height of curvature in inner surface is located in the occlusal third of the inner surface. In addition, the curvature of CEJ is more pronounced on the interproximal aspect than the buccal aspect of tooth. Therefore the measurement of CAL becomes compromised on the interproximal aspect. [2]
The curvature of the CEJ is greatest on anterior teeth due to the narrow profile of these teeth. [6] On the anteriors, the distal aspect's curvature is usually one mm lower than the mesial aspect. Posterior teeth have flatter CEJ curvatures on the inter-proximal surfaces in comparison to the anteriors.
Too tight a 'crest' curve could result in the train leaving the track as it drops away beneath it; too tight a 'trough' and the train will plough downwards into the rails and damage them. More precisely, the support force R exerted by the track on a train as a function of the curve radius r , the train mass m , and the speed v , is given by
Where degree of curvature is based on 100 units of arc length, the conversion between degree of curvature and radius is Dr = 18000/π ≈ 5729.57795, where D is degree and r is radius. Since rail routes have very large radii, they are laid out in chords, as the difference to the arc is inconsequential; this made work easier before electronic ...
A building's surface detailing, inside and outside, often includes decorative moulding, and these often contain ogee-shaped profiles—consisting (from low to high) of a concave arc flowing into a convex arc, with vertical ends; if the lower curve is convex and higher one concave, this is known as a Roman ogee, although frequently the terms are used interchangeably and for a variety of other ...
Variable angle arch dams are dams which have varying curvature along their horizontal profile. The dam rises 155 feet above the lowest foundation and has a crest elevation of 715 feet above sea level. The crest length is 620 feet and the crown thickness varies from 22 feet at the base to 6.8 feet at the top.