the reduction of fe2o3 powder at the top layer by the volatiles from high volatile (hv) bituminous coalat the bottom layer of a multilayer powder geometry including a separating alumina layer was studied.the simultaneous effects of the alumina layer thickness, time, temperature and the weight of coal onthe amount of reduction and coal devolatilization were studied by implementing a rotatable ce...

a frequency domain dynamic analysis is needed to obtain the response of structures constructed on a system of base isolators on flexible soil when subjected to earthquake ground motion. in such systems, the lateral stiffness of the base isolators is so small, compared to the structural stiffness, that in an earthquake attack the fundamental vibration mode dominates the response. with this in mi...

The effect of frequency content on the dynamic response of concrete gravity dams is investigated in this paper. Dams are one of the most complex structures to handle when there is dynamic analysis involved. One of the influential parameters on these structureschr('39') seismic response is the frequency content of the earthquakes. An index to represent frequency content, which represents frequen...

Symmetry reduction is a technique to combat the state explosion problem in temporal logic model checking. Its use with symbolic representation has suffered from the prohibitively large BDD for the orbit relation. One suggested solution is to pre-compute a mapping from states to possibly multiple representatives of symmetry equivalence classes. In this paper, we propose a more efficient method t...

In this paper, free and forced vibration of simply-supported Single-walled carbon nanotube is investigated under the moving nanoparticle by considering nonlocal cylindrical shell model. To validate the theoretical results, modal analysis of nanotube is conducted using ANSYS commercial software. Excellent agreement is exhibited between the results of two different methods. Furthermore, the dynam...

Cracks cause to change dynamic response of beams and make discontinuity in slope of the deflection of the beams. The dynamic analysis of the Euler-Bernoulli cracked beam on the elastic foundation subjected to the concentrated load is presented in this paper. The stiffness of the elastic foundation and elastic supports influence on vibrational characteristics of the cracked beam. The Dynamic Gre...