Tom Sillanpää
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View article: Gold removal from e-waste using high-intensity focused ultrasound
Gold removal from e-waste using high-intensity focused ultrasound Open
The demand for rare and precious metals (RPMs), e.g. gold, is increasing, as these are used in the ever-increasing amount of electronics needed for technological development and digitalization. Due to their rarity, virgin mining of RPMs is…
View article: Localizing a target inside an enclosed cylinder with a single chaotic cavity transducer augmented with supervised machine learning
Localizing a target inside an enclosed cylinder with a single chaotic cavity transducer augmented with supervised machine learning Open
Ultrasound is employed in, e.g., non-destructive testing and environmental sensing. Unfortunately, conventional single-element ultrasound probes have a limited acoustic aperture. To overcome this limitation, we employ a modern method to in…
View article: Sensor Placement for Spatial Gaussian Processes with Integral Observations.
Sensor Placement for Spatial Gaussian Processes with Integral Observations. Open
Gaussian processes (GP) are a natural tool for estimating unknown functions, typically based on a collection of point-wise observations. Interestingly, the GP formalism can be used also with observations that are integrals of the unknown f…
View article: Ultrasonic Fouling Detector Powered by Machine Learning
Ultrasonic Fouling Detector Powered by Machine Learning Open
Guided waves can be used to monitor structural health in industrial pipelines, and e.g. allow detection of accumulated precipitation on the surface of pipe. Propagation of guided waves in a tubular structure carrying possible fouling can b…