EDGE CURVE

Fig. 4.19, The tunnelling luminescence kinetics for the Ej-, Tb3+ pairs in Na20 3Si02-Tb3+ glass. The ultraviolet excitation was at 120 K with further short thermal excitation of electrons above the mobility edge (curve 1) and prolonged heating up to 70 K below the excitation...

Loads can be placed on points, edges, curves, surfaces, or surfaces fitted to points or sections of a shape. They may be independent of the mesh but applied to nodes and elements. Functional variations of loads are handled by mathematical expressions. Types of loads are ... 

In the case of mercury, the liquid level in the capillary is lower than for the liquid outside (Figure 11.195). Also, the meniscus has its edges curved downward that is, it has a convex shape. The difference between Figures 11.19A and 11.195 results... 

Fig. 14.29a,b. Patellar tendon. Schematic drawings illustrate the insertion of the patellar tendon into the lower pole of the patella, a Anterior view of the patella shows that the patellar tendon inserts not only into the apex of the patella (arrowhead) but also along its lateral and medial edges (curved arrows), b Lateral view of the patella reveals that some anterior fibers (arrow) of the patellar tendon overlie the anterior surface of the patella. In contrast, the posterior aspect of the patella (arrowhead) does not give any attachment to the tendon... 

A B REP is an entity that has a scope. A B REP may have a material property associated with it. The B REP is a self-contained entity in the sense that no entity in the B REP may refer to an entity outside the scope of the B REP. All referenced entities must be within the B REP scope itself. The scope of a B REP contains both topological and geometrical entities. Geometry is represented by lists of the entities POINT, DIRECTION, EDGE CURVE and FACE SURFACE which are referenced by the topological entities defined subsequently. Topology is represented by lists of the entities, VERTEX, EDGE, LOOP, FACE and SHELL in that order so that no entity is referenced before it is defined. 

A FACE must be bound by one or more loops, understood in the sense that for an EDGE L00P the associated surface is bounded, by the closed contours built by the edge curves associated to its edges. 

REFERENCE(EDGE CURVE) REFERENCE(VERTEX) REFERENCE(VERTEX) ... 

Every EDGE refers to one and only one underlying EDGE CURVE. 

ENTITY EDGE CURVE = CLASS ( LINE(D3), CIRCLE(D3), ELLIPSE(D3),... 

ENTITY CONSTRUCT SCOPE ENTITY = CLASS( P0INT(D3),EDGE CURVE,... 

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