Nitriding can significantly increase the load carrying properties of gears.While the diffusion layer is primarily responsible for improving the tooth root and flank load carrying capacity, the compound layer mainly determines the tribological properties of the gear surface.In the present work, the influence of the compound layer on the tribological
I pretend to analyze the relationships between capitalism, coloniality and social sciences from the Latinamerican decolonial perspective.From the Slippery Elm outset I defend the thesis that the brutal use of blacks and blacks, Indians and Indians, in the extraction of an invaluable amount of gold and silver in America, served as a historical condi
Abstract Background The COVID-19 pandemic is adversely impacting modern human civilization.A global view using a systems science approach is necessary to recognize the close interactions between health of animals, humans and the environment.Discussion A model is developed initially by describing five sequential or parallel steps on how a RNA virus
The necessity for undertaking this research is driven by the prevailing challenges encountered in logistic centers.This study addresses a logistic order-picking issue involving unidirectional conveyors and buffers, which are assigned to racks and pickers with the objective of minimizing the makespan.Subsequently, two variations of a two-step matheu