Underwater vehicles have been widely used in marine exploration and development.A contra-rotating propeller (CRP) can improve propulsion efficiency, eliminate the roll moment of the propeller acting on underwater vehicles, and significantly improve the dynamic performance of underwater vehicles.Contra-rotating motors (CRMs) are used to drive CRPs.T
This article fleshlight automatique addresses the consequences of economic sanctions for the protection of human rights in Latin America.The literature on sanctions and compliance informs three hypotheses, which investigate the relationship between sanctions and the level of rights protection in two groups of countries: those that were targeted by
Pesticide resistance is a major concern in natural populations and a model trait to study adaptation.Despite the importance of this trait, the dynamics of its evolution and of its ecological consequences remain largely unstudied.To fill this gap, we performed experimental evolution with replicated populations of Caenorhabditis elegans exposed to th
During recent years, the non-governmental organizarions (NGO) supportive of migrants from the United States and Mexico along the California-Baja California border region, a zone of great trans-border interactions, have presented a series of responses before the anti-migration policies of the American government, some of which go beyond the governme
Following paper describes selected tools and methods from Quality management field and their practical applications on defined examples.Solved examples were elaborated in the form of electronic support.This in detail elaborated electronic support provides students opportunity to thoroughly practice specific issues, help them read more to prepare fo