https://doi.org/10.21860/j.10.1.8 The very definition, scope, and practical implications of the concept of vulnerability are among the most debated questions in the field of vulnerability research.However, a consensus seems to exist regarding children and adolescents: they are generally considered vulnerable and in need of special protection due to

This article presents a proposal to describe the pressure changes in the combustion chamber of an engine as a function of the angle of rotation of the crankshaft, taking into account changes in rotational speed resulting from acceleration.The aim of the proposed model is to determine variable piston forces in simulation studies of torsional vibrati

Frequency regulation services can be provided by emerging flexible resources such as electric vehicles and energy storage which can rapidly adjust the output in response to regulation signals, as long as there is an effective market to provide proper incentives.However, current regulation markets were designed for conventional thermal generating un