the synthesis of nano- structured cobalt through a controlled chemical process followed by heat treating at various temperatures is studied. the product is characterized by icp, xrd, fesem , and tem, indicating that the as- synthesized particles have an amorphous structure with 1.76 for co/b ratio, an average size of 50 nm. the transformation of intermediate phases into single phase nano- cryst...

Neutron star-black hole binaries are among the strongest sources of gravitational waves detectable by current observatories. They can also power bright electromagnetic signals (gamma-ray bursts, kilonovae), and may be a significant source of production of r-process nuclei. A misalignment of the black hole spin with respect to the orbital angular momentum leads to precession of that spin and of ...

Personalized e-learning material recommenders are known for discovering associations between learner's requirements and learning materials. They usually use association rule mining in which the most time-consuming part is frequent pattern mining from log files. Since the content of log files and learner profiles are frequently changed, frequent patterns must be updated to discover valid associa...

Missing Supplementary Material In the published article, Acknowledgments was mistakenly not included in publication. The missing material appears below:AcknowledgmentsThe authors would like to thank Research Directorate of Universidad Peruana de Ciencias Aplicadas for support provided carry out this research work through UPC-EXPOST-2023-1 incentive.The apologize error and state that does change...