An analysis of scientific literature, photo and video materials showed that plaques in humans are completely different from animals the «contemporary official description» AS. They differ appearance, lack inflammation walls artery, clinical manifestations, complications. It has also been found «true» plaque nothing to do with first four types atherosclerosis humans. was necessary understand how...

The quality and quantity of agricultural products depend on land reclamation. Collector-drainage systems are used to improve the reclamation state irrigated areas. article discusses stability slopes open collector-drainage networks in lands Hungry Steppe. Discussed problems create during construction providing productivity drainages system irrigation fields. causes deformation process discussed...

In this paper, the full dynamic model describing vibrations of piezoceramic solids of hollow cylindrical shapes and accounting for the coupling of the solids to surrounding fluid/gas media has been analysed numerically. The major attention has been given to the case of radial preliminary polarisation of piezoceramics where a strong coupling between electric and mechanical fields is an essential...

The nanometer-scale size and hollow, cylindrical shape of carbon nanotubes suggests to many researchers that they may be used as molecular sieves, nanoscale test tubes, or hydraulic actuators or motors. They might also be used as ultrafiltration membranes (membranes with pores on the order of 1-100 nm) that are widely used in pharmaceutical industries. Such a nanotube membrane might function by...

A short review is presented of the cylinder problem as a vehicle for developments in the theory of linear viscoelastic stress analysis. This is followed by the solution of the problem of a compressible, hollow circular viscoelastic cylinder encased in and bonded to an elastic cylindrical shell. The analysis includes the effects of arbitrarily varying angular velocity and internal pressure, and ...

An explicit formula is presented for the effectiveness factor of a catalyst particle in the form of a hollow cylinder taking into account the reactant diffusion in the fluid phase of the cylindrical core and diffusion and reaction in the outer reactive annulus. The proper normalization to be used in the definition of the generalized Thiele modulus as well as the aspect ratios that lead to the h...

We utilized oil/water interfaces as a new field to produce lipid nanotubes (LNTs), which are formed by the self-assembly of lipid molecules, and possess hollow nanometer-wide cylindrical structures. Compared to the self-assembling field in bulk water, oil/water interfaces produced shorter lipids nanotubes less than 10 microm long more efficiently. In addition, we found that the oil/water interf...

The main objective of this paper is the numerical investigation of the process of thermomagnetic convection of a special temperature sensitive ferrofluid. The fluid is studied in a cylindrical domain, with constant temperatures on the top and bottom ends and adiabatic boundary conditions on the sidewalls. The thermomagnetic convection is generated by a non-uniform constant magnetic field of a s...

The radiation characteristics of hemispherical DRA elements mounted on or embedded in a hollow circular cylindrical ground structure are investigated. The performance of the DRA array which operates at about 1.8 Ghz, is studied. Factors influencing the array performance, such as the number of elements and element spacing are explained. The perforated dielectric technique is used to design the a...

A multiplexed hollow fiber flow field-flow fractionation (MxHF5) is introduced to increase throughput of an HF5 channel system for semi-preparative purposes. HF5, a cylindrical version of the flow field-flow fractionation (FlFFF) operated with a porous, hollow fiber membrane by controlling the ratio of radial and axial flow rates, is capable of fractionating proteins, cells, and macromolecules ...