Bu-Ali Sina University

About: Bu-Ali Sina University is a education organization based out in Hamadan, Hamadān, Iran. It is known for research contribution in the topics: Catalysis & Adsorption. The organization has 4078 authors who have published 7969 publications receiving 122828 citations.

State of art of multiagent systems in power engineering: A review

Abstract: Applications of multiagent systems (MAS) in power engineering are of particular importance. However, little effort exists to provide an insight in MAS applications from the lens of power engineering practitioners. This paper is first in examining state of the art of MAS in power engineering. A comprehensive literature review is conducted and a novel taxonomy associated with research concerning MAS applications in power engineering is proposed. The paper shows that MAS is adaptable and applicable with different power engineering categories. The paper also concludes that the applications of MAS in different aspects of modern power systems, like planning, market, management, operation, control, monitoring and protection are anticipated to be of significance in the development smart grids.

One-pot synthesis of 4H-Chromene and Dihydropyrano[3,2-c]chromene derivatives in hydroalcoholic media

Abstract: 4H-Chromenes and dihydropyrano[3,2-c]chromenes are obtained in good to excellent yields by a simple, mild and efficient procedure using poly(N,N'-dibromo-N-ethyl-benzene-1,3-disulfonamide) [PBBS] and N,N,N',N'-tetrabromobenzene-1,3-disulfonamide [TBBDA ] as catalysts

Synthesis and catalytic activity of carbon supported copper nanoparticles for the synthesis of aryl nitriles and 1,2,3-triazoles

Abstract: Various substituted aryl nitrile and 1,2,3-triazole derivatives were prepared by using carbon supported copper nanoparticles (C/Cu NPs) as a heterogeneous catalyst under ligand-free conditions, which provided good to excellent yields. The nanocatalyst can be recycled and reused several times without significant loss of catalytic activity.

Mechanical properties improvement of cast AZ80 Mg alloy/nano-particles composite via thermomechanical processing

Abstract: Three different nano-composites with cast AZ80 magnesium alloy matrix and nano-particles reinforcement, including Al 2 O 3 , TiO 2 and SiC, have been prepared via stir casting method. In order to refine the microstructure and improve the mechanical properties, the monolithic AZ80 as well as AZ80/nano-particles composites were thermomechanically processed employing forward extrusion at 200 °C. The obtained microstructures of extruded nano-composites materials indicated significant grain refinement due to the progression of dynamic recrystallization (DRX); however, the extruded monolithic material depicts a typical necklace structure with limited DRX grain. To evaluate the mechanical properties, micro-hardness and tensile tests were conducted. The results showed a remarkable increase in hardness of extruded nano-composites because of adding harder particles along with outstanding grain refinement. Furthermore, tensile tests results indicated a remarkable improvement in yield and ultimate strength as well as room temperature ductility for extruded composites compared with cast AZ80 Mg alloy. Finally, it is concluded that adding SiC nano-particles to the cast AZ80 Mg alloy resulted in the best combination of strength and ductility in comparison with Al 2 O 3 and TiO 2 particles. This may be attributed to the homogenous distribution of SiC particles and the lowest level of agglomeration during the extrusion process.