Glen Borgerding met Randy Constant in the late nineteen-nineties, when landowners in northern Missouri hired them to help set up an organic soybean farm. Borgerding, an agronomist from Minnesota, took ...

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In 1949, Dattatreya Ramachandra Kaprekar found a number that, after a simple game of sorting and subtracting, always ends up appearing. The story of a discovery that fascinates mathematicians and ...

Abstract: Elastic constants of metal can be extracted by measuring the ultrasound longitudinal and shear wave velocities. The Electromagnetic Acoustic Transducer (EMAT) technique provides a ...

Abstract: Constant current (CC) and constant voltage (CV) charging are two charging stages for li-ion batteries in an electric vehicle wireless charging system. Based on the three-coil structure, this ...