Octopuses can readily be taught to distinguish between objects that differ in surface texture, or in taste. But they cannot be taught to recognize the distribution of irregularities on the surface of objects, or to discriminate between objects that differ only in weight (Wells, 1961a, 19636, Wells & Wells, 1956, 1957). In visual experiments the animals can recognize the orientation of things th...

Abstract. In this paper, a new building detection method based on density of LiDAR point clouds is proposed. method, trees, vegetation, and any objects that have points in vertical plane or column are removed. the density-based cube utilized to calculate therein. For each point, used determine number neighbouring points. The calculated two cases: 3D 2D space. space, volumetric using cube. all p...

S2 I Fig. 1. Cross-sectional view of dye cell showing aluminum rings AL1 and AL2, substrates S1 and S2, the sealing O-rings, and the Swagelok connectors. the entire cell could be repositioned, and another portion of the mirror could be used. In this way a single mirror could continue to be used following several damaging events. The cell, shown in Fig. 1, consists of two 5.08-cm diam, 0.95-cm t...