One of the main parameters high-quality sowing agricultural seeds is their uniform distribution along length, which mainly influenced by unit. In present work, grain crops using a coil seeding unit considered as an object research. As subject research, dependences uniformity seed length furrow on non-uniformity specific working volume coil, rotation frequency blower pneumatic seeder and rate ar...

Static electricity is usually generated in the damage area of metal surface due to contact friction, and charge distribution density can reflect size, shape, relative position area. Based on this, a planar array electrostatic sensor designed detect defect this paper, shielding method, number electrodes, electrode arrangement are optimized taking account induced value, uniformity sensitivity ima...

We consider a new notion of circuit uniformity based on the concept of rational relations, called Rational-uniformity and denoted Rat. Our goal is to prove it is sharper than DLogTime-uniformity, the notion introduced by Barrington et al. [3], denoted DLT , that is: 1) Rational-uniformity implies DLogTime-uniformity, 2) we have NCRat NCDLT ( NCRat, 3) we have ∀k > 0, NCDLT ⊆ NC Rat , 4) Rationa...