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A parametric study of the energy and moisture performance in Passive House exterior walls

Adding insulation to improve the energy performance of a building with a traditional Swedish wooden construction may increase the risk of mould growth in the wooden construction. There is a need to address this potential problem since the amount of passive houses and low energy buildings are increasing as a means to reduce energy use, energy dependency and greenhouse gas emissions. This paper eva

Characterization of progressive damage in concrete using impact non-linear reverberation spectroscopy

Nonlinear acoustic methods have shown potential for the identification of early damage in brittle materials such as concrete. Commonly, these methods evaluate relative nonlinearity parameters from multiple resonance tests at different amplitudes. We demonstrate a recently developed alternative method, Impact Nonlinear Reverberation Spectroscopy (INRS), where quantitative nonlinearity parameters ar

Design, optimization and construction of an electric motor for an Electric Rear Wheel Drive Unit application for a Hybrid Passenger Car

An Electric Rear Wheel Drive -ERWD- unit is a cost effective solution for the electrification of passenger cars. While the conventional front-wheel transmission is kept, the ERWD unit provides electrical torque to the rear wheels and regenerative braking capabilities. In this article the design, optimization, construction and testing of an electric motor for such unit is presented. The experimenta

System and Method for Controlling Motion of Spacecrafts

A motion of an object is controlled from a geostationary transit orbit (GTO) of an earth to an orbit of a moon. A first trajectory of the motion of the object is determined from an intermediate orbit of an earth to a neighborhood of a stable manifold of a first Lagrange point (L1). A second trajectory of the motion of the object is determined from the GTO to the intermediate orbit. A third traject