In this study, the ac susceptibility (χ' and χ'') variation with temperature (10–100 K) for oleic acid (OA) capped Ni/Ni(OH)2 core–shell nanoparticle assemblies are reported at frequencies varying from 0.1 to 1000 Hz. ...

.In the present work, a new approach is proposed for finding the analytical solution of population balances for aggregation and fragmentation process. This approach is relying on the idea of the homotopy perturbation method ...