The purpose was to study the efficiency of use aspiration equipment BC type and its today in comparison with advanced achievements technology elevator industry for process creating air dilution removing grain dust during operation using example a modern silo capacity 20,000 tons, production, including acceptance storage air-conditioned grains. In order achieve answer research questions about ef...

An idealised modelling study of sting-jet cyclones is presented. Sting jets are descending mesoscale jets that occur in some extratropical cyclones and produce localised regions of strong low-level winds in the frontal fracture region. Moist baroclinic lifecycle (LC1) simulations are performed with modifications to produce cyclones resembling observed sting-jet cyclones. A sting jet exists in t...

Recent work has developed a new framework for the impact of vertical wind shear on the intensity evolution of tropical cyclones. A focus of this framework is on the frustration of the tropical cyclone’s power machine by shearinduced, persistent downdrafts that flush relatively cool and dry (lower equivalent potential temperature, θe) air into the storm’s inflow layer. These previous results hav...

New equations have been developed to predict the effect of geometrical dimensions of tangential cyclones on their operational performances. To check the validity of the derived equations, an experimental apparatus was set up and some experimental work was performed. It was observed that the experimental results confirm properly the theoretical predictions.

According to WHO, at any one time, around 50 per cent of medical equipment in lowand middle-income countries cannot be used because of lack of maintenance or spare parts.1 We have found that unwillingness or inability to repair equipment and put it back in use is also a major cause. New equipment is made available by different international non-government organisations (INGOs) competing with on...