Based on the nonlocal Timoshenko beam theory, the dynamic stability of functionally gradded (FG) nanoeams under axial load is studied in thermal environment, with considering surface effect. It is used power law distribution for FGM and the surface stress effects are considered based on Gurtin-Murdoch continuum theory. Using Von Karman geometric nonlinearity, governing equations are derived bas...

since the collapse of the soviet :union:, russia has been affected by intensifying regional and international developments than ever before. because of new opportunities and threats caused by these developments, russia faced with the problem of structural adoption whit systemic new realities, accompanying whit redefinition of its position and review of foreign policy approaches. conceptual and ...

The accelerating fields (e. g. centrifugal acceleration and constant acceleration) can change the physical performance of nano-sensors significantly. Herein, a new size-dependent model is developed to investigate the scale-dependent dynamic behavior of nanowire-fabricated sensor operated in an accelerating field. The scale-dependent equation of motion is developed by employing a consolidation o...

In this work, nonlocal vibration of double of carbon nanotubes (CNTs) system conveying fluid coupled by visco-Pasternak medium is carried out based on nonlocal elasticity theory where CNTs are placed in uniform temperature change and magnetic field. Considering Euler-Bernoulli beam (EBB) model and Knudsen number, the governing equations of motion are discretized and Ritz method is applied to ob...

ipad gene is amongst key genes in shigella invasion, known as an antigen. pa20 protein of bacillus anthracic can be separated from native pa protein during the infection and can be found in the serum of the infected patients and make it possible to diagnose the disease. ctxb, a known immune adjuvant, enhances the immunogenicity and is mainly used for the production of recombinant vaccines as a ...