A 70- year-old-Caucasian male was admitted to our Department of Dermatology because since about two years, erithematosus macules-papules and pustoles itching appared to neck, referable to id or dermatophytid reaction.A year before the patient performed a skin biopsy on a lesion of the neck Desk to hospital Department of Surgery with resulted inexac
Vibration energy harvesting for low frequency using auto-tuning parametric rolling pendulum under exogenous multi-frequency excitations
ABSTRACT: An electromagnetic parametrically excited rolling pendulum energy harvester with self-tuning mechanisms subject to multi-frequency excitation is proposed and investigated in this paper.The system consists DEODORANT STICK CITRUS VETIVER of two uncoupled rolling pendulum.The resonance frequency of each the rolling pendulum can be automatica