PROBLEM TO BE SOLVED: To stably detect whether the rotational direction of the object is θor θ+180° from the angle θ of the main axis of a binarized image of the object even when the object is in an outward shape that is almost axial symmetry with respect to the main axis, e.g...
Atomically thin materials offer multiple opportunities for layer-by-layer control of their electronic properties. While monolayer graphene (MLG) is a zero-gap system, Bernal-stacked bilayer graphene (BLG) acquires a finite band gap when the symmetry between the layers’ potential energy is broken, ...
Organoid and spheroid technology provide valuable insights into developmental biology and oncology. Optical coherence tomography (OCT) is a label-free technique that has emerged as an excellent tool for monitoring the structure and function of these samp
This circle diameter Dtc,kb can be measured but can also be calculated easily using the turning circle diameter Ds and the actual width of the tyre (Figs 2.11 and 2.15): Sign in to download full-size image Fig. 3.93. Turning circle kerσ to kerb Dtc,kb; an important dimension for the...
of Newman’s projection formula, with C1at the centre of the first circle and C2is at the back, not visible and C1and C2are joined to X and Y respectively, as shown below inFig. 1.5. The rotation of C1–C2bond results in change in position of the planes (X–C1–C2and Y–C2–C1...
An angle-adjustable hinge in which a pair of floating wedge members are disposed as to be rotation symmetric for 180° around a first axis as an axis of symmetry, and each of wedge f
A parallel algorithm is presented for detecting dominant points on a digital closed curve. The procedure requires no input parameter and remains reliable even when features of multiple sizes are present on the digital curve. The procedure first determines the region of support for each point based ...
using a protector by marking three lines from the center of the circle, which would divide the angle at the center into three angles of 120 degree ... Posamentier,Alfred,S. - 《Mathematics Teacher》 被引量: 1发表: 2006年 [Symmetry types, systems and multiplicity of the structure of aden...
This figure is the pattern in the image plane formed by rays from some object point that cross the aperture plane around a circle. For the spherical aberration, this figure is itself a circle, irrespective of the object position, and the effect of this aberration is therefore to blur the ...
A horn antenna suitable for an amplitude-comparison broadband direction-finding system with 360° azimuth coverage comprises a horn with a wide angle of flare in a plane normal to the z-axis of a cylin