introduction: an overlooked but important part of successful root canal treatment is a straight-line access (sla). the purpose of this in vitro study was to compare the efficacy of introfile and prerace rotary instruments with gates glidden (gg) drills in gaining sla by cone-beam computed tomography (cbct). methods and materials: a total of forty five extracted mandibular first molars were sele...

We prove that any PSLG has a conforming quadrilateral mesh with O(n) elements, all angles ≤ 120◦ and all new angles ≥ 60◦ (the complexity and the angle bounds are both sharp). Moreover, all but O(n) of the angles may be taken in a smaller interval, say [89◦, 91◦]. Date: January 2011. 1991 Mathematics Subject Classification. Primary: 30C62 Secondary:

Line matching plays an important role in building reconstruction, because majority buildings are composed of line segments along boundaries. Considering the complexity in image processing, line matching is a challenging work. The building reconstruction with line matching algorithm is performed using high overlapping aerial images in this study. The strategy is to determine the building boundar...

Sketch-based algorithms are widely applied in various networking applications. In this paper, we present a compact implementation for on-line traffic change detection on a NetFPGA platform. The system utilizes a straight forward scheme to reveal the key of flow with tradeoff on the accuracy for hardware simplicity. It is capable of digesting traffic up to 4Gbps line rate with accuracy needed ba...

A linear algorithm based on a discrete geometry approach is proposed for the detection of digital arcs and digital circles using a new representation of them. It is introduced by inspiring from the work of Latecki [1]. By utilizing this representation, we transform the problem of digital arc detection into a problem of digital straight line recognition. We then develop a linear method for arc s...