The application of the full potential stellar seismology is made difficult by improper modelling upper-most layers solar-like stars and their influence on modelled frequencies. Our knowledge these so-called ‘surface effects’ has improved thanks to use 3D hydrodynamical simulations, however, calculation eigenfrequencies relies empirical models for description Lagrangian perturbation turbulent pr...

High-pressure containers are widely used in modern industries, including chemical industry, oil, nuclear power, aviation and many other fields. As pressure vessels various fields, it will face a more complex changeable working environment. the effects of media environment fatigue stress cause defects, which greatly affect normal work container. Therefore, this article conducts static analysis s...

We present a theoretical description of the thermal fluctuations in a solid-supported stack of lipid bilayers, for the case of vanishing surface tension gamma = 0 and in the framework of continuous smectic elasticity. The model is successfully used to model the reflectivity profile of a thin (16 bilayers) DMPC sample under applied osmotic pressure and the diffuse scattering from a thick (800 bi...

investigating pressure applied in surface vertically that is done by use of mechanical procedures isn’t efficient to measure pressure applied in inner surface of reservoir or pipes having gas due to entering pressure into whole walls and different surfaces. So, in order to measure this kind of pressure, several studies were conducted in past decades and also various procedures were proposed tha...

due to urbanization and population increase, need for metro tunnels, has been considerably increased in urban areas. estimating the surface settlement caused by tunnel excavation is an important task especially where the tunnels are excavated in urban areas or beneath important structures. many models have been established for this purpose by extracting the relationship between the settlement a...

tan films with different n2 partial pressure were deposited on 304 stainless steel using the magnetron sputtering method. the effect of gas pressure on the mechanical property, morphology and phase structure of the films is investigated by x-ray diffraction (xrd), atomic force microscopy (afm), microhardness testing, friction coefficient measurements, and wear mechanism study. the xrd results c...