In this paper, we investigate the outage performance of dual-hop multiuser multi-relay cognitive radio networks under spectrum sharing constraints. Using an efficient relay-destination selection scheme, the exact and asymptotic closed-form expressions for the outage probability are derived. From these expressions it is indicated that the achieved diversity order is only determined by the number...

4 Androgens.hormonal regulation of spermatogenesis, with an emphasis on the role of testosterone within the. Hormonal messengers are critical not only for regulation of.Spermatogenesis. Cell types involved in sperm production. How they interact to support spermatogenesis. Hormonal regulation of spermatogenesis.ISBN 951-29-2337-8 Print, ł Īī-Ī PDF. The expression and hormonal regulation of beta-...

Bu çalışmada, Sasani imparatorluk ideolojisi ve propagandası ile imparatorluğun merkezi coğrafyası arasında kurgulanan bağ tarif edilmekte bunun devlet sistemi kurgusunda dönüşüm sürekliliğe ne ölçüde etki ettiği bu dinamik sürecin hangi argümanlarla beslendiği ele alınmaktadır. imparatorluğu sadece rakiplerine karşı değil aynı zamanda kendi tebaasından farklı dini etnik zümrelerin aleyhine de ...

We consider a geometrical approach to constructing viscosity solutions to Hamilton-Jacobi-Bellman equations. This takes the Lagrangian manifold M on which the characteristic curves for the Cauchy problem lie and forms a viscosity solution V as the minimum of the generating functions of the branches of M lying over state space. This construction is well-known in the case of finite time variation...