in the present research work, the kinetics of sunflower oil transesterification reaction in the presence of ba-sr/zsm-5 nanocatalyst which prepared using incipient wetness impregnation method was investigated. the 10wt.%ba-sr/zsm-5 (sr/ba=3/2) nanocatalyst was calcined at 600 °c for 6 h with a heating rate of 3 ºc/min. the experimental conditions were the methanol/oil 9/1molar ratio, reaction t...

This article presents the modern state of energy-efficient residential building exterior wall constructions from aerated concrete, and main properties concrete are analyzed. Properties composite materials, strength, heat-technical depending on their structure considered. Also, analysis existing problems in obtaining Republic Uzbekistan is presented. The results research use industrial waste hav...

Both non-neural and neural biological systems can learn. So rather than focusing on purely brain-like learning, efforts are underway to study learning in physical systems. Such include equilibrium propagation (EP) coupled (CL), which require storage of two different states---the free state the perturbed state---during process retain information about gradients. Here, we propose a algorithm root...

This research investigates how activated carbon (AC) was synthesized from potato peel waste (PPW). Different ACs were under the atmosphere's conditions during carbonation via two activation methods: first, chemical activation, and second, dioxide-physical activation. The influence of drying period on preparation precursor methods investigated. specific surface area pore volume estimated using B...

This research demonstrates that the physical properties of shopping carts influence purchasing and spending. Prior on ergonomics indicates standard carts, which are pushed via a horizontal handlebar, likely to activate arm extensor muscles. muscle activation, in turn, suggests activation may elicit less than flexor activation. The authors thus deduce be suboptimal for stimulating purchases. pre...