Evidence is presented to suggest that, in three dimensions, spherical 6-designs with N points exist for N = 24, 26, ≥ 28; 7-designs for N = 24, 30, 32, 34, ≥ 36; 8-designs for N = 36, 40, 42, ≥ 44; 9-designs for N = 48, 50, 52, ≥ 54; 10-designs for N = 60, 62, ≥ 64; 11-designs for N = 70, 72, ≥ 74; and 12-designs for N = 84, ≥ 86. The existence of some of these designs is established analytical...

Digital fabrication technology, also referred to as 3D printing or additive manufacturing, creates physical objects from a geometrical representation by successive addition of materials. technology is fast-emerging technology. Nowadays, widely used in the world. has been increasingly for mass customization, production any types open-source designs field agriculture, healthcare, automotive indus...

This letter presents a novel open source design of the Y-shaped hexarotor Unammend Aerial Vehicle (UAV), and proves both in theory real experiments its robustness to failure any propellers. An intuitive geometrical interpretation UAV static hovering ability is presented, through which different coplanar/collinear designs analyzed. Following presented interpretation, we also show conditions that...

The project of upgrading the detector CMD-2 is presented. The upgraded detector is called CMD-2M and is going to take data with new collider VEPP-2000 at BINP. The general structure of the detector CMD-2 will remain as is but major parameters of the detector, such as momentum and angular resolution for charged particle and energy and spatial resolution for photons, will be substantially improved.