Abstract: An interference removal technique, called Wavelet-Adaptive Interference Cancellation for Underdetermined Platforms (WAIC-UP), is provided to effectively eliminate stray magnetic field signals using multiple magnetometers, without requiring prior knowledge of the spectral content, location, or magnitude of the interference signals. WAIC-UP capitalizes on the distinct spectral properties of various interference signals and employs an analytical method to separate them from ambient magnetic field in the wavelet domain.

Abstract: A system and method for separating spacecraft generated magnetic noise from geomagnetic field data includes detecting magnetic information using a plurality of magnetometers and outputting a representative detection signal, the magnetic information comprising magnetic noise and geomagnetic field data; receiving the representative detection signal including the magnetic information from the plurality of magnetometers and resolving the magnetic noise data and the geomagnetic field data by analyzing a relative gain and phase of the representative detection signal in a time-frequency (TF) domain, if a noise signal of the representative detection signal is sparse in the TF domain then the relative gain and phase is found using cluster analysis, and separating a geomagnetic field data signal from a magnetic noise data signal using cluster centroids in compressive sensing based on the cluster analysis.

Abstract: Swirl tube separator for separating solids from a gas-solid containing feed comprising a tubular housing, an inlet for introducing a gas-solids mixture at one end of said housing, a solids outlet opening at the opposite end of said housing, and a co-axial positioned tubular gas outlet conduit placed at an end of said housing, wherein along the axis of the tubular housing a vortex extender pin is present.

Abstract: In a device for storage and dispensing of equally shaped discs or disc-shaped elements mounted in one or more piles having a center bore and contained in a housing or frame in which threaded spindles are positioned (parallel to each other and the axis of the pile) around the piled discs with the outer rim of the disk lying inside the grooves of the threaded spindles so that the discs move along the pile axis by synchronously turning the spindles and having a manipulator to feed in or release a disc into a desired position, the improvement characterized in that the threaded spindles have a region or two regions in which the threads of the spindle vary in pitch and preferably also in diameter. This is achieved in case of a single-pile by increasing the pitch and the outer diameter of the thread of the spindles in the center region compared to the rest of the spindle, whereas for the two-pile version the end portions of the spindles vary in pitch and outer diameter. The core diameter is always constant.