A note on 2--bisections of claw--free cubic graphs

A \emph{$k$--bisection} of a bridgeless cubic graph $G$ is a $2$--colouring of its vertex set such that the colour classes have the same cardinality and all connected components in the two subgraphs induced by the colour classes have order at most $k$. Ban and Linial conjectured that {\em every bridgeless cubic graph admits a $2$--bisection except for the Petersen graph}. In this note, we prove Ban--Linial's conjecture for claw--free cubic graphs

A formulation of a (q+1,8)-cage

Let $q\ge 2$ be a prime power. In this note we present a formulation for obtaining the known $(q+1,8)$-cages which has allowed us to construct small $(k,g)$--graphs for $k=q-1, q$ and $g=7,8$. Furthermore, we also obtain smaller $(q,8)$-graphs for even prime power $q$.Comment: 14 pages, 2 figure

A construction of small (q-1)-regular graphs of girth 8

In this note we construct a new infinite family of $(q-1)$-regular graphs of girth $8$ and order $2q(q-1)^2$ for all prime powers $q\ge 16$, which are the smallest known so far whenever $q-1$ is not a prime power or a prime power plus one itself.Comment: 8 pages, 2 figure

Função e manejo da cortina em aviários.

bitstream/item/58330/1/CUsersPiazzonDocuments273.pd

Automatizando a avicultura.

bitstream/item/58345/1/CUsersPiazzonDocuments272.pd

A arte de controle do estresse calórico em aves.

bitstream/item/58352/1/CUsersPiazzonDocuments264.pd

Alta densidade na produçao de frangos de corte.

bitstream/item/59441/1/CUsersPiazzonDocuments10.pdf; bitstream/item/59442/1/CUsersPiazzonDocuments10.pd

Planejamento do aviário em função da capacidade de abate do frigorífico.

bitstream/item/59422/1/CUsersPiazzonDocuments22.pd