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We investigate the influence of different thermal and velocity boundary conditions on numerical geodynamo models. We concentrate on the implications for magnetic field morphology, heat transport scaling laws, force balances and generation mechanisms. The field morphology most strongly depends on the local Rossby number, but there is some variation in the dipolarity of the field with boundary condition. Scaling laws also depend on the boundary conditions, but a diffusivity-free scaling is a good first order approximation for all our dipolar models. Our multipolar models, however, obey different scaling laws from dipolar models implying a different force balance in these models. We find that our dipolar models have a stronger degree of Lorentz–Coriolis balance compared to our multipolar models which have a stronger degree of Lorentz-inertial balance.The models with a stronger Lorentz–Coriolis dominance can be generated by either αω, α2ω or α2 mechanisms whereas the models with a stronger Lorentz-inertial balance are all α2 dynamos. These results imply that some caution is necessary when extrapolating results from dynamo models to Earth-like parameters since the choice of boundary conditions can have important effects. [ABSTRACT FROM PUBLISHER]

Air-oil separator is used to recover oil from the air leaving the compressor. The air-oil separator design is based on the minimum diameter of capturing oil droplet and the separation efficiency of the separator. The available air-oil separators are Cyclone, Labyrinth, wire and oil filter. In this work cyclone separator is proposed due to its higher separation efficiency for wide range of droplet size. The proposed model C1 to C6 is analysed using CFD tool and maximum separation efficiency is obtained for C4 model and minimum residence time & static pressure is obtained for C3 model. It is concluded that C3 model is finalized model due to least residence time and back pressure with acceptable separation efficiency. [ABSTRACT FROM AUTHOR]

INSIGHTS FROM A PROSPECTIVE SINGLE CENTRE STEMI REGISTRY. THE NEGLECTED POPULATION OF STEMI WITHOUT STANDARD MODIFIABLE CARDIOVASCULAR RISK FACTORS. [Extracted from the article]