Analysis of friction and wear of aluminium AA 5083/ WC composites for building applications using advanced machine learning models

The aluminium composites have gained greater attention, especially in wear resistant applications. However, reinforcing the ceramic particulates in the aluminium matrix is a major factor influencing the tribological characteristics. In this regard, the influence of Fly Ash inoculants on the uniform distribution of reinforcements and the subsequent tribological characteristics are studied. The composite specimens are produced by reinforcing different wt.% (in the range of 3 to 9 wt%) of Tungsten Carbide (WC) and the Fly Ash (FA) in Aluminium AA 5083 matrix by ultrasonic assisted stir casting in a controlled environment. The wt.% of the reinforcements are chosen based on initial trials and related literature reviews. The stir cast aluminium composites are machined in accordance with the specimen standards to accomplish the pin on disc - adhesive wear following the ASTM G99 standards. The results of the wear test clearly depicts that the increase in the wt.% of fly ash upto a threshold limit (6 wt%) improves the wear behaviour of the composites. This is majorly due to the homogeneity brought about by the fly ash inoculants in dispersing the ceramic reinforcements of WC uniformly in the matrix phase. The experimental findings are also ascertained by the statistical validations and correlated. The results of the experiments and the statistical validations and the outcomes of the optimization will be a base for the use of the composites for wear resistant applications, since the wear of the aluminium composite castings are of prime concern for advanced industrial uses. Further, Artificial Neural Network (ANN) and Machine Learning (ML) models are evolved to predict the tribological characteristics of the composite specimens. The predictions of these models are found to be in clore correlation to the experimental outcomes

Banana (Musa spp.) as a source of bioactive compounds for health promotion

Banana and plantain are monocotyledonous plants belonging to the genus Musa, family Musaceae, and order Zingiberales. All around the world, the importance of banana plant increases with its different applications in pharmaceutical and food industries and in other biotechnologically related processes. This chapter provides an overview of bioactive compounds in banana and biological activities of banana's secondary metabolites. Raw and mature bananas have a characteristic matrix of bioactive compounds such as phenolics, carotenoids, biogenic amines, and phytosterols, which are highly desirable in the diet as they have many positive effects on human health and well-being. Antioxidants serve to keep down the levels of free radicals, permitting them to perform useful biological functions without damaging cells and preventing diseases. Banana peel extract is a potential source of bioactive compounds such as flavonoids and polyphenols, with a wide range of medicinal properties, in particular the high free radical scavenging activity.info:eu-repo/semantics/publishedVersio