Abstract: A fracturing device, including a power unit, wherein the power unit comprises a muffling compartment, a turbine engine, an air intake unit, and a starter; the air intake unit is communicated with the turbine engine through an intake pipe, and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is located at the top of the muffling compartment, the muffling compartment comprises an accommodation space, the turbine engine and the starter are located in the accommodation space, and the starter is configured to start the turbine engine, the starter comprises a first electric motor.

Abstract: A control method and apparatus for displaying multimedia content, an electronic device, and a medium. The method includes: displaying a first-type multimedia content on a first content display layer of a first-type multimedia content display interface, the first-type multimedia content display interface including: a first user interaction layer and the first content display layer, the first user interaction layer being superimposed and displayed on the first content display layer; and receiving a first swiping operation inputted by a user on the user interaction layer, and exiting the first-type multimedia content display interface. That is, a swiping operation triggers to exit the first-type multimedia content display interface, as the swiping operation is significantly different from a click operation, the user is provided with a multimedia content display control method that is more consistent with the user's operation habit, improving the user experience.

Abstract: A three-stage tubular T-shaped degassing device with microbubble axial flow and spiral flow fields is provided, which is applied to quick degassing of a gas-liquid two-phase flow. The three-stage tubular T-shaped degassing device adopts a quick degassing technology combining a microbubble uniform mixed rotational axial flow field and a spiral runner conical spiral flow field with layered jet collision reversing depth degassing. A microbubble uniform mixer is configured to adjust gas-liquid two-phase flow containing big bubbles into microbubble uniform mixed axial flow. A microbubble cyclone is configured to adjust the microbubble uniform mixed axial flow into multiple strands of rotational axial flows containing microbubbles. A rotational axial flow degasser implements the horizontal type microbubble uniform mixed multiple strands rotational axial flow degassing operation to remove most microbubbles to form axial flow gas and axial flow liquid.

Abstract: The three-stage axial flow degassing device adopts an efficient degassing technology including a vertical high speed swirling field, a horizontal rapid axial flow field and a vertical reversing scrubbing field formed by a combination of vertical tubes; the first-stage degasser performs the first-stage segmental vertical high speed swirling degassing operation, removes the gas phase carried by the gas-containing fluid, and forms a primary gas and a primary fluid; the microporous uniform mixer breaks bubbles of the primary fluid and forms a gas-liquid uniform mixed flow; the second-stage degasser performs the second-stage horizontal vane wheel swirling generating rapid axial flow degassing operation, removes the gas phase carried by the gas-liquid uniform mixed flow, and forms a secondary gas and a secondary fluid; the third-stage degasser performs the third-stage vertical reversing deep degassing operation, removes liquid phase carried by the secondary gas, and forms a tertiary gas and a tertiary fluid.

Abstract: The present invention relates to a derivative of 13-oxidized ingenol, use thereof in the prevention and/or treatment of a disease associated with proliferation or tumor in a subject, or a cosmetic indication, and use thereof in the prevention and/or treatment of a disease responsive to neutrophil oxidative burst, a disease responsive to a release of IL-8 by keratinocyte, or a disease responsive to induction of necrosis.

Abstract: An energy storage system and a multi-stage short circuit protection system thereof are provided. The multi-stage short circuit protection system includes N stages of fuse units. Each battery pack is connected to a corresponding first-stage fuse unit, a direct-current side of a power conversion device is arranged with a third-stage fuse unit, and at least one second-stage fuse unit is arranged between multiple battery packs and the power conversion device. In a case that a short circuit fault occurs at a position on the direct-current side of the power conversion device, only a fuse unit at a stage preceding the position and a fuse unit at a stage following the position are broken, thereby avoiding a problem of a high maintenance cost in the conventional technology due to that all fuses are broken.

Abstract: Disclosed herein is a method of microbial enhanced oil recovery by changing microbial motility, including: subjecting a viable Glycocaulis strain and the alkane-degrading Dietzia strain to contact culture to enable the alkane-degrading Dietzia strain to have motility. This application also provides a method for microbial enhanced oil recovery, including: subjecting a viable Glycocaulis strain and the alkane-degrading Dietzia strain to contact culture to enable the alkane-degrading Dietzia strain to have motility; and injecting the contact culture mixture of the viable Glycocaulis strain and the alkane-degrading Dietzia strain to an oil well to perform microbial enhanced oil recovery.

Abstract: The present invention relates to a derivative of 13-oxidized ingenol, use thereof in the prevention and/or treatment of a disease associated with proliferation or tumor in a subject, or a cosmetic indication, and use thereof in the prevention and/or treatment of a disease responsive to neutrophil oxidative burst, a disease responsive to a release of IL-8 by keratinocyte, or a disease responsive to induction of necrosis.

Abstract: An energy storage system and a multi-stage short circuit protection system thereof are provided. The multi-stage short circuit protection system includes N stages of fuse units. Each battery pack is connected to a corresponding first-stage fuse unit, a direct-current side of a power conversion device is arranged with a third-stage fuse unit, and at least one second-stage fuse unit is arranged between multiple battery packs and the power conversion device. In a case that a short circuit fault occurs at a position on the direct-current side of the power conversion device, only a fuse unit at a stage preceding the position and a fuse unit at a stage following the position are broken, thereby avoiding a problem of a high maintenance cost in the conventional technology due to that all fuses are broken.

Abstract: Disclosed herein is a method of microbial enhanced oil recovery by changing microbial motility, including: subjecting a viable Glycocaulis strain and the alkane-degrading Dietzia strain to contact culture to enable the alkane-degrading Dietzia strain to have motility. This application also provides a method for microbial enhanced oil recovery, including: subjecting a viable Glycocaulis strain and the alkane-degrading Dietzia strain to contact culture to enable the alkane-degrading Dietzia strain to have motility; and injecting the contact culture mixture of the viable Glycocaulis strain and the alkane-degrading Dietzia strain to an oil well to perform microbial enhanced oil recovery.

Abstract: A calibration circuit for body biasing includes a phase detector, first and second voltage generators, and first and second voltage regulators. The phase detector has an input terminal configured to receive an oscillation signal from a ring oscillator. The phase detector provides output signals indicative of phase differences between the oscillation signal and a reference signal. The first voltage generator provides a first reference voltage using the output signals from the phase detector, and the first voltage regulator provides a first biasing voltage using the first reference voltage. The second voltage generator provides a second reference voltage using the first reference voltage, and the second voltage regulator provides a second biasing voltage using the second reference voltage. The first biasing voltage is used to bias P-wells of transistors in the ring oscillator, and the second biasing voltage is used to bias N-wells of transistors in the ring oscillator.

Abstract: A capacitive sensing circuit includes circuitry to compensate for moisture or liquid spanning sensor units. The capacitive sensing circuit includes input terminals that couple with respective sensor units to receive sensing signals. A sensing block determines capacitance changes in the sensor units using the sensing signals and generates output signals indicative of the sensed capacitance changes. First switches are coupled with respective ones of the input terminals and are closed during a first scanning stage to couple the sensing signals from the input terminals collectively to the sensing block. Second switches are coupled with respective ones of the input terminals and are closed during a second scanning stage, to generate compensation signals to compensate for capacitance interference between the sensor units.

Abstract: A calibration circuit for body biasing includes a phase detector, first and second voltage generators, and first and second voltage regulators. The phase detector has an input terminal configured to receive an oscillation signal from a ring oscillator. The phase detector provides output signals indicative of phase differences between the oscillation signal and a reference signal. The first voltage generator provides a first reference voltage using the output signals from the phase detector, and the first voltage regulator provides a first biasing voltage using the first reference voltage. The second voltage generator provides a second reference voltage using the first reference voltage, and the second voltage regulator provides a second biasing voltage using the second reference voltage. The first biasing voltage is used to bias P-wells of transistors in the ring oscillator, and the second biasing voltage is used to bias N-wells of transistors in the ring oscillator.

Abstract: A capacitive sensing circuit includes circuitry to compensate for moisture or liquid spanning sensor units. The capacitive sensing circuit includes input terminals that couple with respective sensor units to receive sensing signals. A sensing block determines capacitance changes in the sensor units using the sensing signals and generates output signals indicative of the sensed capacitance changes. First switches are coupled with respective ones of the input terminals and are closed during a first scanning stage to couple the sensing signals from the input terminals collectively to the sensing block. Second switches are coupled with respective ones of the input terminals and are closed during a second scanning stage, to generate compensation signals to compensate for capacitance interference between the sensor units.

Abstract: An electronic device includes mutual capacitance sensing circuitry for a capacitive touch pad. The touch pad has pairs of transmit and receive electrodes. The sensing circuitry intermittently charges and discharges the transmit electrode, and then measures corresponding voltage level changes at the receive electrode. A non-linear voltage-to-current converter is used to detect the voltage level changes, which allows for great sensitivity to mutual capacitance changes.

Abstract: A sensor for providing an output signal that is a function of a sensed capacitance, in a touch interface for example. The sensor includes a charger for repetitively applying first and second voltages to charge the sensed capacitance to first and second charge values in first and second phases respectively. A sampler provides first and second sample signals that are a function of the first and second charge values respectively. An accumulator uses an accumulator signal to provide the output signal. The accumulator repetitively uses the first sample signal incrementally and the second sample signal decrementally in providing the accumulator signal. The accumulator signal is a progressive function of the sensed capacitance but tends to cancel a noise in the first and second sample signals at frequencies less than a repetition rate of operation of the accumulator.

Abstract: An electronic device includes a transmit module and a receive module connected, respectively, to touch pad transmit and receive electrodes. The receive module includes a non-linear voltage-to-current converter, a pre-charge voltage generator, and an integrator. Mutual capacitance between the transmit and receive electrodes is Cm. The transmit module alternates between first and second states of, respectively, charging and discharging the transmit electrode. The receive electrode and the pre-charge voltage generator provide a control voltage to the voltage-to-current converter. The control voltage depends on the mutual capacitance, the state of the transmit module, and a pre-charge voltage provided by the pre-charge voltage generator. The voltage-to-current converter provides a charge current dependent on the first voltage to the integrator. The integrator determines a value for the mutual capacitance based on the charge current.

Abstract: In a touch interface, a sensor provides an output signal that is a function of a sensed capacitance. The sensor includes a charger for repetitively applying first and second voltages to charge the sensed capacitance to first and second charge values in first and second phases respectively. A sampler includes a first current mirror for providing first and second sample current signals that are a function of the first and second charge values respectively. An accumulator uses an accumulator signal to provide the output signal. The accumulator repetitively uses the first and second sample current signals differentially to modify a charge on an accumulator capacitor and provide the accumulator signal. The accumulator signal is a progressive function of the sensed capacitance but cancels noise in the first and second sample signals at frequencies less than a repetition rate of operation of the accumulator.

Abstract: In a touch interface, a sensor provides an output signal that is a function of a sensed capacitance. The sensor includes a charger for repetitively applying first and second voltages to charge the sensed capacitance to first and second charge values in first and second phases respectively. A sampler includes a first current mirror for providing first and second sample current signals that are a function of the first and second charge values respectively. An accumulator uses an accumulator signal to provide the output signal. The accumulator repetitively uses the first and second sample current signals differentially to modify a charge on an accumulator capacitor and provide the accumulator signal. The accumulator signal is a progressive function of the sensed capacitance but cancels noise in the first and second sample signals at frequencies less than a repetition rate of operation of the accumulator.

Abstract: A sensor for providing an output signal that is a function of a sensed capacitance, in a touch interface for example. The sensor includes a charger for repetitively applying first and second voltages to charge the sensed capacitance to first and second charge values in first and second phases respectively. A sampler provides first and second sample signals that are a function of the first and second charge values respectively. An accumulator uses an accumulator signal to provide the output signal. The accumulator repetitively uses the first sample signal incrementally and the second sample signal decrementally in providing the accumulator signal. The accumulator signal is a progressive function of the sensed capacitance but tends to cancel a noise in the first and second sample signals at frequencies less than a repetition rate of operation of the accumulator.