We compare oscillator- and level-based analog computing devices in a noisy environment. The computational model of a Hopfield network is implemented using both level- and phase-based signal representations. and these models are simulated assuming both 1/f and thermal noise. The oscillator-based computing architecture turns out to be more immune against 1/f noise and operates reliably ... https://www.infonoticiasgandia.com/product-category/oil-test-strips/