Using the thermalgravimetric technique, we investigated the non-isothermal combustion kinetics of abundant and low-cost date palm wastes (leaflet, rachis, fibers, and their composite) as potential biomass energy sources.The kinetic and thermodynamic parameters were determined by Flynn–Wall–Ozawa (FWO), Kissinger–Akahila–Sunose (KAS), and St
The effect of polyethylene glycol 1500 on physicomechanical properties of rigid polyurethane-polyisocyanurate (PUR-PIR) foams has been studied.It was found that application of polyethylene glycol 1500 for synthesis of foams in amount from 0% to 20% w/w had an effect on reduction of brittleness and softening point, while the greater the increase in
Railway systems should be resilient to play a key role in creating sustainable development.Single-track railway lines are seen as potential bottlenecks due to limited capacity.More advanced railway interlocking DGL systems (such as ETCS or satellite-based control systems) are being developed.On the other hand, the installation of these interlocking
Abstract In terms of advances in technology, especially electronic devices for human use, there are needs for Beanies miniaturization, low power, and flexibility.However, there are problems that can be caused by these changes in terms of battery life and size.In order to compensate for these problems, research on energy harvesting using environment
In downhole drilling systems, self-excited torsional vibrations Beanies caused by the bit-rock interactions can affect the drilling process and lead to the premature failure of components.Especially self-excited oscillations of higher-order modes lead to critical dynamic loads.The slim drill string design and the naturally limited drilled borehole