The concept of a circular design is defined and when proper balance for various effects is
assumed, its universal optimality is proved over the class of all designs with the same set of …

… suggested in the past for the straight circular tubes. Conventional roughened surfaces (…
transfer performance in various heat transfer equipments with circular tubes. For example, a lot of …

… The concept of a circular economy is an innovative alternative model to society‘s … a circular
economy reduces the environmental burden while providing business benefits, not all circular …

Magda (1980) introduced a model for repeated measurements designs with a circular
structure of the residual effects. He proved the universal optimality of circular balanced uniform …

… A design is called circular balanced if each treatment immediately precedes every other
treatment (excluding itself) an equal number of times, say β. A circular balanced design can only …

… This treatment produces circular etch pits on the graphene … After this second treatment step,
the existing circular etch pits … are hexagonal, as opposed to circular, and that they all have …

… circular shape is apparent), but of course not both. This explains why we do not observe the
coexistence of the triangular and circular … Circular e states only appear in STM images when …

… of documents aimed at promoting Circular Economy. The purpose of Circular Economy is to
… Several studies have shown that waste management based on circular economic principles …

… Magda (1980) proved the universal optimality of circular strongly balanced uniform
designs (uniform CSBDs) and circular … In this paper we consider circular repeated-measurements …

… We focus on circular repeated measurements designs with t = 2 treatments, n experimental
units, and p = 2, 3, 4 periods. Our aim is to obtain ϕ-optimal designs, for the estimation of …