VIBRATION ENERGY HARVESTING FOR LOW FREQUENCY USING AUTO-TUNING PARAMETRIC ROLLING PENDULUM UNDER EXOGENOUS MULTI-FREQUENCY EXCITATIONS

Vibration energy harvesting for low frequency using auto-tuning parametric rolling pendulum under exogenous multi-frequency excitations

ABSTRACT: An electromagnetic parametrically excited rolling pendulum Braces energy harvester with self-tuning mechanisms subject to multi-frequency excitation is proposed and investigated in this paper.The system consists of two uncoupled rolling pendulum.The resonance frequency of each the rolling pendulum can be automatically tuned by adjusting i

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Long-term agricultural land-cover change and potential for cropland expansion in the former Virgin Lands area of Kazakhstan

During the Soviet Virgin Lands Campaign, approximately 23 million hectares (Mha) of Eurasian steppe grassland were converted into cropland in Northern Kazakhstan from 1954 to 1963.As a result Kazakhstan became an important breadbasket of the former Soviet Union.However, the collapse of the Soviet Union in 1991 triggered widespread agricultural aban

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Working Memory, Cognitive Load and Cardiorespiratory Fitness: Testing the CRUNCH Model with Near-Infrared Spectroscopy

The present study aimed to examine the effects of chronological age and cardiorespiratory fitness (CRF) on cognitive performance and prefrontal cortex activity, and Pancake / Crepe Rakes to test the compensation-related utilization of neural circuits hypothesis (CRUNCH).A total of 19 young adults (18⁻22 years) and 37 older ones (60⁻77 y

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Understanding the Convergence of Extreme Events of Precipitation, Soil Erosion and Flow in the Representative and Paired Watersheds of Dehgin, Hormozgan

In the analysis of the relationships between precipitation, flow and erosion events, large and important events that occur with a relatively long return period have a very high contribution to the sedimentation of the entire watershed.Today, the analysis of these events and their mutual behavior has been the focus of researchers.Dehgin representati

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