Heat transfer mechanisms and the solidification process are simulated for a continuous casting machine and the geometric shape of the liquid pool is predicted considering different conditions. A heat transfer and solidification model is described for the continuous casting of steel slabs. The model has been established on the basis of the technical conditions of the slab caster in the con...

Electric arc furnace (EAF) is one of the most disturbing loads in power system as it highly time-varying and nonlinear. In this paper, new models based on instantaneous EAF voltage current, recorded from EAFs Mobarakeh steel company Isfahan/Iran are proposed. The focus paper developing efficient Schwarz model where three modified types original has four constant parameters. Unlike which uses in...

in the present work the recrystallization behavior of deep drawing grade al-killed low carbon steel sheets produced by mobarakeh steel plant (msp) has been studied. salt bath isothermal annealing has been applied to cold rolled samples and the resulted microstrucrures have been compared with the microstructure obtained from the box annealing process in msp. it is found that at 635 and 700ºc the...

It is commonly recognized that knowledge is the only source of core competence in the knowledge based companies, but the productivity rate of knowledge workers is always Low. Based on knowledge workers’ characteristics, in this paper, we seek to identify educational factors influencing on the Productivity of Knowledge Workers, then educational strategies present for improvement of Knowledge Wor...

This study deals with a new approach to tackle the challenges encountered in filters-based reactive power calculation techniques utilized control system of static VAr compensators. In this approach, step and time-varying responses are improved by combination differential filter-based methods. Then, optimum values main parameters low-pass band-stop filters determined considering three criteria: ...

grate bar is an industrial part which is used in the indurating furnace of an iron ore pelletizing plant. steel part ofthe grate bars are expected to have high resistance to atmospheric oxidation because of its contact with hot gases(up to 920 °c) during the normal operation of the process. in this study, different samples from several sections ofused grate bars with apparent defects were selec...

biomonitoring is the one of the cost-effective and simple ways for investigation of environmental quality and refers to process which in that using living organisms or part of them can obtain quantitative information on environmental quality. industrial activities causes to entrance considerable amount of heavy metals to the atmosphere and use of boimonitoring potential of plants growing in the...

Grate bar is an industrial part which is used in the indurating furnace of an iron ore pelletizing plant. Steel part ofthe grate bars are expected to have high resistance to atmospheric oxidation because of its contact with hot gases(up to 920 °C) during the normal operation of the process. In this study, different samples from several sections ofused grate bars with apparent ...