Abstract: This invention relates to a method of using a two-step serial centrifugation process in extracting nutritive oil from a fermentation broth, this novel method prevents oil yield losses while preserving product quality.

Abstract: Various improvements are provided to breathing training, monitoring and/or assistance devices. A portable device is provided which optionally includes a gas canister, a feedback system for implementing pressure control, and a visual output for indicating adherence to a breathing exercise to the user. The pressure control may provide regulation of different pressures for inhalation and exhalation.

Abstract: The present disclosure is directed to methods and apparatus for leveraging the triboelectric effect to improve fall detection. In various embodiments, fall detection system (100) may include: a triboelectric sensor (102) that is securable to a portion of a person's body or is affixed to clothing worn by the person, wherein the triboelectric sensor includes at least one electrode (103) that defines a surface; readout circuitry (104) that detects charge at the at least one electrode caused by physical contact between the surface of the at least one electrode and at least one other surface; and logic (106) that receives, from the readout circuitry, a first signal indicative of the detected charge at the at least one electrode and, based at least in part on the first signal, provides output indicative of a detected fall.

Abstract: A wireless power transfer system includes a power transmitter (201) arranged to provide a power transfer to a power receiver (205) via a power transfer signal. The power receiver (205) comprises a first mode controller (709) for transmitting a standby mode exit request to the power transmitter (201) by changing a loading of a communication inductor (209) of the power transmitter (201). The power transmitter (201) comprises a mode controller (405) which controls the power transmitter (201) to operate in a standby mode wherein a presence of the power receiver (205) is detected but no power transfer signal is generated. It furthermore comprises a detector (403) for detecting an impedance change of the communication inductor (209). The mode controller (405) is arranged to initiate a transition from the standby mode to a power transfer mode in response to the detector (403) detecting the impedance change.

Abstract: Disclosed is a vital sign monitoring system. The system comprises a segmented electrode forming an in-plane electrode array, wherein the electrode comprise a skin contacting skin adhering contact layer mounted on an electrode backing material, a deformation sensor arranged for identifying deformation information of the electrode, a signal processor arranged to receive a vital sign signal from the electrode and process the deformation information to remove artefacts from the vital sign signal, wherein the electrode comprises multiple electrode segments and wherein the signal processor is arranged to select that electrode segment that has a lowest deformation of all electrode segments of the electrode.

Abstract: A wireless power transfer system includes a power transmitter configured to provide a power transfer to a power receiver via a power transfer signal. The power receiver includes a first mode controller configured to transmit a standby mode exit request to the power transmitter by changing a loading of a communication inductor of the power transmitter. The power transmitter includes a mode controller configured to control the power transmitter to operate in a standby mode where a presence of the power receiver is detected but no power transfer signal is generated. A detector is configured to detect an impedance change of the communication inductor. The mode controller is configured to initiate a transition from the standby mode to a power transfer mode in response to the detector detecting the impedance change.

Abstract: A system comprises a power generator for generating electrical power and a switched capacitor converter for down-converting the output voltage of the power generator. The switched capacitor converter comprises a bank of capacitors and a switch arrangement. A controller is used for controlling the switches, based on a feedback signal from the power generator. This provides automatic control of the switched capacitor converter, thereby simplifying the overall control circuitry and improving efficiency.

Abstract: The invention provides a device for generating electrical currents of a particular desired waveform through the combining of a plurality of different frequency output currents generated by plurality of power generating arrangements. The power generating arrangements each comprise at least first and second sets of generating elements, configured to hold a relative charge and to be moveable with respect to one another in order to generate an electrical output current of a particular frequency.

Abstract: The current invention relates to a method of separating polyunsaturated fatty acids containing lipids from a lipids containing biomass.

Abstract: A power transmitter (101) for inductively transferring power to a power receiver (105) comprises a resonance circuit (201) comprising a transmitter coil (103) for generating a power transfer signal. A sampler (511) samples a current through, or voltage over, the transmitter coil (103). A message receiver (509) receives messages load modulated onto the power transfer signal based on the samples. A driver (203) generates a drive signal for the resonance circuit (201) and a resonance modification circuit (505) reduces the resonance frequency of the resonance circuit (201) by slowing a state change for a resonating component of the resonance circuit (201) for a fractional time interval of the cycles of the drive signal. A sample time controller (513) controls the sample times in response to at least one of start-times and end-times of the fractional time intervals, and specifically may set the sample times to be within the fractional time intervals.

Abstract: A power transmitter (101) inductively transferring power to a power receiver (105) comprises a resonance circuit (201) comprising a transmitter coil (103). A driver (203) generates a drive signal for the resonance circuit (201) and a data receiver (513) receives messages load modulated onto a power transfer signal by the power receiver (105) during communication time intervals. An error unit (507) determines a coil current error and a control loop (511) controls the current through the transmitter coil (103) in response to the coil current error with the control loop (511) being active during the communication time intervals. A loop response of the control loop is attenuated for coil current errors in a reduced control range relative to coil current error indications outside the reduced control range, where the reduced control range includes a zero coil current error.

Abstract: A wireless power transmitter (101)) comprises a resonance circuit (201) comprises a transmitter inductor (103) for generating a power transfer signal for wirelessly transferring power to the power receiver (105). A driver (203) generates a drive signal for the resonance circuit (201) and a resonance modification circuit (505) aligns the resonance frequency of the resonance circuit (201) with the drive frequency of the drive signal by slowing a state change for resonance circuit (201) for a fractional time interval of cycles of the drive signal. A load estimator (509) generates a load estimate reflecting an equivalent load resistor for the transmitter inductor (103) reflecting the loading of the power transfer signal. A drive frequency adapter (511) then adapts the drive frequency in response to the load estimate. The invention may in particular improve load modulation communication quality.

Abstract: Disclosed herein are processes for obtaining a microbial oil comprising one or more polyunsaturated fatty acids (PUFAs) from one or more microbial cells by lysing the cells to form a lysed cell composition, treating the lysed cell composition to form an oil-containing emulsion and then recovering the oil from the oil-containing emulsion. Further disclosed herein is microbial oil comprising one or more PUFAs that is recovered from microbial cells by at least one process described herein.

Abstract: The present invention relates to processes for obtaining a lipid from a cell by lysing the cell, contacting the cell with a base and/or salt, and separating the lipid. The present invention is also directed to a lipid prepared by the processes of the present invention. The present invention is also directed to microbial lipids having a particular anisidine value, peroxide value, and/or phosphorus content.

Abstract: The current invention relates to a method of isolated polyunsaturated fatty acids containing lipids from a lipids containing biomass.

Abstract: The present invention relates to processes for obtaining a lipid from a cell by lysing the cell, contacting the cell with a base and/or salt, and separating the lipid. The present invention is also directed to a lipid prepared by the processes of the present invention. The present invention is also directed to microbial lipids having a particular anisidine value, peroxide value, and/or phosphorus content.

Abstract: The present invention relates to processes for obtaining a lipid from a cell by lysing the cell, contacting the cell with a base and/or salt, and separating the lipid. The present invention is also directed to a lipid prepared by the processes of the present invention. The present invention is also directed to microbial lipids having a particular anisidine value, peroxide value, and/or phosphorus content.

Abstract: The processes for obtaining a microbial oil comprising one or more polyunsaturated fatty acids (PUFAs) from one or more microbial cells comprise removing water from the cell fermentation broth or lysed cell composition before demulsification is conducted. Such a process has the benefits of reduced demulsification time and reduced salt use. Microbial oil comprising one or more PUFAs can be recovered from microbial cells by the process.

Abstract: Disclosed herein are processes for obtaining a microbial oil comprising one or more polyunsaturated fatty acids (PU-FAs) from one or more microbial cells by lysing the cells to form a lysed cell composition and then recovering the oil from the lysed cell composition. Further disclosed herein is microbial oil comprising one or more PUFAs that is recovered from microbial cells by at least one process described herein.

Abstract: A power transmitter (2) for transferring power to a power receiver comprises a first inductor (307) for providing power and a second inductor (407) for receiving data signals from a power receiver. The first (307) and second (407) inductors are separate inductors in a power transfer circuit (701) and a data signal receiving circuit (702). The data signal receiving circuit (702) comprises a data extracting circuit (1007) for extracting the data signals received by the second inductor (407). The power transmitter comprises a control circuit (401) for controlling the power in dependence on the data signals. The power transmitter transfers power during power transfer periods and receives data during communication periods, communication periods corresponding to periods wherein power is low.