Abstract: Described embodiments relate to a hand-held portable sedimentation measurement device, comprising: a closeable fluid container having a container wall and defining a chamber to receive fluid for sedimentation measurement and defining a central longitudinal axis; multiple light sources disposed along the container and generally parallel to the longitudinal axis to direct light through the wall into the chamber; multiple light sensors disposed along the container arranged to detect light passing through the chamber from at least one of the light sources; a controller configured to control emission of light from the sources and to receive detection signals from the light sensors, wherein sedimentation measurements are derived from the light emitted from the light sources and the detection signals; a communication interface coupled to the controller and arranged to transmit sedimentation data to an external computing device; and a housing connected to the container and housing the controller and interface.

Abstract: Described embodiments relate to a hand-held portable sedimentation measurement device, comprising: a closeable fluid container having a container wall and defining a chamber to receive fluid for sedimentation measurement and defining a central longitudinal axis; multiple light sources disposed along the container and generally parallel to the longitudinal axis to direct light through the wall into the chamber; multiple light sensors disposed along the container arranged to detect light passing through the chamber from at least one of the light sources; a controller configured to control emission of light from the sources and to receive detection signals from the light sensors, wherein sedimentation measurements are derived from the light emitted from the light sources and the detection signals; a communication interface coupled to the controller and arranged to transmit sedimentation data to an external computing device; and a housing connected to the container and housing the controller and interface.

Abstract: A process for recovering metal from a process material comprising the metal and a component that is more volatile than the metal, which process comprises: transporting the process material in a retort provided in a furnace, the retort being operated under vacuum and at a temperature sufficient to cause sublimation of the component from the process material thereby producing purified metal; depositing the component that has been sublimed on a cool surface; removing purified metal from the retort; and removing deposited component from the cool surface.

Abstract: A process for recovering metal from a process material comprising the metal and a component that is more volatile than the metal, which process comprises: transporting the process material in a retort provided in a furnace, the retort being operated under vacuum and at a temperature sufficient to cause sublimation of the component from the process material thereby producing purified metal; depositing the component that has been sublimed on a cool surface; removing purified metal from the retort; and removing deposited component from the cool surface.

Abstract: A spread spectrum signal transmission method and spread spectrum signal transmission system in which a carrier frequency is frequency modulated with an analog or digital baseband signal in a transmitter, the frequency modulated carrier is converted into a pulse sequence, each pulse is converted into a band-spread signal linked with a code and transmitted via an antenna, and wherein the transmitted signal is subsequently received by an antenna and linked with a code which is the time inverse of the first named code, whereby a sequence of correlation peaks arises, which are converted into a pulse sequence and subsequently frequency demodulated to obtain an output signal corresponding to the analog or digital baseband signal. The method or the system make it possible to achieve an interference-free transmission of both analog and also digital signals with low transmitter power and/or large range, with a low number of system components, i.e. with simple and cost favorable system components.