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 have developed a compact, low-cost convolutional spectrometer that delivers lab-grade precision for applications ...
Two light therapy devices tested on a calibrated spectrometer at the same twelve-inch distance their manufacturers advertise ...
Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers
Data of methylene blue number and iodine number of activated carbons samples were calibrated against the respective surface area, micropore volume and total pore volume using multiple regression. The ...
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Using the measured value λ 0 ≈ 30 mm, we find T b 0> 4 T θ 0 and T b ℓ> 5 T θ ℓ, indicating that twist dissipates before bending waves can trigger another fracture. In addition, we find that T θ diss ...
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