В данной статье предложена к рассмотрению схема процесса подсчета стандартной цены. Эта схема включает четыре этапа. Первый этап – задача агрегации цен. С...

The article offers a scheme of the process of calculation of a standard price for consideration. This scheme includes three stages. The first stage - the task of price aggregation. The article describes a model for aggregation of calculation of standard prices with the help of analysis of...

Due to advantages such as high energy density, high power density, rapid charge and discharge, high cyclic-life, and environmentally friendly, flywheel energy storage systems (FESs) are widely used in various fields. However, the performance of FES systems depends on the performance of a high...

This paper presents the work carried out on the chemical reaction, mechanism, role of materials, applications and microstructure of fly ash geopolymer cement. Geopolymeris a type of amorphous alumino-silicate cementitious material. Geopolymer can besynthesized by polycondensation reaction of...

An experimental study has been carried out to investigate the effective efficiency of a solar air heater duct provided with transverse and inclined ribs as artificial roughness elements on the absorber plate. The range of parameters considered for the present investigation; Reynolds number (Re)...

In this study, a Taguchi method is used to determine the optimal combinations of concentrations for a diesel engine with diesel/biodiesel blend using H2 and cooled exhaust gas recirculation (EGR) at the inlet port. The authors determined the optimal operating factors for achieving good...