The principle idea is to apply the two-dimensional method, on the surface of each candidate boundary sphere, to the circles of intersection with neighboring spheres.
Walls making up the wells prevent neighboring spheres from contact, i.e. the risk of sphere fusion and/or cell exchange between spheres is eliminated and true clonality of spheres at the end of experiment can be obtained.
The measurement of critical distance for discrimination only ensures that neighboring spheres correspond to different percepts, it says nothing about more distant spheres.
For sphere arrays with thin Au shell spheres packed closely to each other, the electron wave function in one sphere can penetrate to other neighboring spheres and form mini-band structures.
Specifically, the model is partitioned with several concentric spheres, and all the parts between two neighboring spheres are recorded with original BWs descriptor, which leads to the name Concentric Bag-of-Words.
Certainly, the hollow spheres obtained in combination with mode 2 (shown in Figure 5c) also can be achieved on the discrete PS array, where the distance between PS spheres is large enough that the shadow effect from the neighboring spheres can be eliminated.
In both combinations each sphere has 12 first neighbors, and if d is the diameter of a sphere (or the distance between the centers of two neighboring spheres), then the inter-layer separation is 6 3 d.
In the arrangement of Figure 4C the percept stays the same along one dimension of the space and varies along the orthogonal dimension, yet all neighboring spheres are distinct.
In addition, in the UV PDs based on the hollow-sphere bilayer nanofilms, the charge transfer between two neighboring hollow spheres is hopping-like due to the existence of physical boundaries [8].
Interestingly, there was a bridge between two neighboring PS spheres.
