conclusions the brachial plexus block can be performed at different levels in the same patient to achieve desired results, while employing sound anatomical knowledge and adhering to the maximum safe dose limit of the local anesthetic. case presentation we present the case of a 68-year-old gentleman who had brachial plexus block at supraclavicular and interscalene levels as the sole anesthetic f...

The present work consists in evaluating the impacts of plowing speed three-body plows/discs hitched to a 60 HP tractor, on structure ferralitic soil, and determining optimal which guarantees good soil biomass retention capacities, bearing capacity preservation leading better yield with view using motorized tools wisely agricultural practices Benin plateau, from 2019-2021. All was carried out sa...

Fine-grained, more or less cohesive carbonate materials are extremely widespread in terms of surface area and are, therefore, commonly used as materials to construct impermeable cores for dams. However, it has not been adequately documented whether the carbonate content in fine-grained soils significantly affects their engineering behaviour. The present study shows that the carbonate content su...

in this paper the effects of non-linearity of suspension on dynamic behavior of a railway wheelset has been studied. this wheelset has four degrees of freedom that with two constraints it has reduced to two degrees of freedom. vermeulen-johnson theory has been used to calculate contact forces between wheel and rail. in this study the creep coefficients have considered constant. any linearizatio...

in this paper, penetration of high velocity impact of 4340 steel and tungsten carbide projectiles with specific shapes in to ceramic armor that includes 10 mm alumina (95%) is considered analytically and simulated with ls-dyna software. bernoulli equation used to consider the penetration velocity in ceramics, shows that the penetration is better and easier by increasing projectile density. the ...

Expansive soil is generally found in arid and semi-arid regions of the world. One main issues with these expansive soils their swelling properties when natural water content increases. The various swell-shrink tendencies cause numerous substructure distress infrastructures such as buildings, pavements, breast walls, among others. Geotechnical engineers have worked hard to understand behavior ex...