The charging profile and the quality of the charging system play a key role in the lifetime and the reliability of the battery. In this research, high power 7 Ah LiFePO4-based cells (LFP) have been used to investigate the impact of the fast charging technique on the battery’s lifetime and the charging time. The charging time is an important factor to save time and cost during the battery operat...

The massive construction in poor lands has encouraged engineers to use deep foundations in order to transfer superstructure loads to the subsoil. Since soil excavation, sampling, and laboratory testing as a part of site investigation are relatively difficult, in-situ tests such as cone penetration test (CPT) as a very informative test may be recommended. The CPT has been widely used in engineer...

In recent years, determining bearing capacity of piles from in-situ testing data as a complement to static and dynamic analysis has been used by geotechnical engineers. In this paper, different approaches for estimating bearing capacity of piles from SPT data are studied and compared. A new method based on N value from SPT is presented. Data averaging, failure zone and plunging failure of pil...

In recent years, determining bearing capacity of piles from in-situ testing data as a complement to static and dynamic analysis has been used by geotechnical engineers. In this paper, different approaches for estimating bearing capacity of piles from SPT data are studied and compared. A new method based on N value from SPT is presented. Data averaging, &#10failure zone and plunging failure of p...

The current-voltage characteristic (IVC) of a system of two small series-connected tunnel junctions is calculated under conditions when the energy spectrum of the central electrode of the system is discrete. The form of the IVC depends substantially on the rate of energy relaxation on this electrode. I t is shown that at typical real values of the system parameters the global IVC singularities ...