Abstract: In this paper, equivalent electric circuit models of a commercial 1.2-kW proton exchange membrane (PEM) fuel cell stack are proposed based on AC impedance studies. The PEM fuel cell stack ...
Researchers from the Molecular Physics and Physical Chemistry departments of the Fritz Haber Institute have shown how two ...
Europe's first TES spectrometer is transforming X-ray research with up to 1,000 times greater sensitivity, making once impossible experiments finally possible. Europe’s first and only TES spectrometer ...
Quantum properties of light are extremely delicate. When researchers attempt to measure them, even small losses on the way to ...
A quadrupole mass analyser designed for fusion research combines radiation hardness with the ability to distinguish between ...
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