Abstract: A leakage current sensor and a leakage current monitoring device; the leakage current center comprising an input end, an output end and an ASIC chip; the ASIC chip is electrically connected with the input end for reading analog quantity signals of the input end; the ASIC chip is further electrically connected to a digital signal processing module; the digital signal processing module can output digital quantity signals to the output end; the digital signal processing module can simultaneously feedback the output digital quantity signals to the ASIC chip, thereby forming a closed-loop feedback circuit; the input end of the leakage current sensor comprises a current sampling unit; a reference unit is arranged between the current sampling unit and the ASIC chip;

Abstract: A retrofit Light Emitting Diode, LED, tube for connecting to a High Frequency, HF, ballast, which LED tube comprises a switchable capacitor arrangement for ensuring that the ballast does not go into over current protection mode, wherein the switching is controlled based on a desired dimming level of the LED tube. The switchable capacitor arrangement is provided in parallel with said input of said rectifier, and comprises at least a first capacitor and a second capacitor in series, and said control circuit is adapted to configure said switchable capacitor arrangement to conduct the AC power and switch at least one of the first capacitor and the second capacitor between the rectifier and the LED array to block the DC power to said LED array.

Abstract: A primary drainage process, a core aging process, a water flooding process, an enhanced oil recovery (EOR) flooding process, and a core cleaning process is conducted on a rock sample. For each of the primary drainage process, core aging process, water flooding process, EOR flooding process, and core cleaning process, an equilibrium sample magnetization distribution and a spatially resolved spin-spin relaxation time spectrum are measured across multiple locations along a longitudinal length of the rock sample. One or more hydrocarbon saturation distributions of the rock sample are determined based on the equilibrium sample magnetization distributions. One or more wettability distributions of the rock sample are determined based on the spatially resolved spin-spin relaxation time spectrums and the one or more hydrocarbon saturation distributions.

Abstract: A primary drainage process, a core aging process, a spontaneous water imbibition process, a forced water imbibition process, a spontaneous hydrocarbon imbibition process, and a secondary drainage process is conducted on a rock sample. For each of the primary drainage process, the spontaneous water imbibition process, the forced water imbibition process, the spontaneous hydrocarbon imbibition process, and the secondary drainage process, a pressure distribution and a fluid saturation distribution are measured across multiple locations along the rock sample. For each of the locations, the pressure distribution and the fluid saturation distribution are combined to produce a capillary pressure bounding curve and scanning loop for the rock sample, and a relative permeability bounding curve and scanning loop are determined at least based on the measured fluid saturation and pressure distributions at the respective location.

Abstract: A primary drainage process, a core aging process, a water flooding process, an enhanced oil recovery (EOR) flooding process, and a core cleaning process is conducted on a rock sample. For each of the primary drainage process, core aging process, water flooding process, EOR flooding process, and core cleaning process, an equilibrium sample magnetization distribution and a spatially resolved spin-spin relaxation time spectrum are measured across multiple locations along a longitudinal length of the rock sample. One or more hydrocarbon saturation distributions of the rock sample are determined based on the equilibrium sample magnetization distributions. One or more wettability distributions of the rock sample are determined based on the spatially resolved spin-spin relaxation time spectrums and the one or more hydrocarbon saturation distributions.

Abstract: The present disclosure relates to systems and methods for exposure control. The systems and methods may obtain a target frame brightness value of the image. The systems and methods may also obtain an exposure mode of the electronic device. The systems and methods may also obtain an exposure table corresponding to the exposure mode. The systems and methods may also determine a target value, corresponding to the target frame brightness value, for each of the one or more exposure parameters based on the exposure table. The systems and methods may also adjust one or more of the at least one lens, the at least one exposure-time controller, and the at least one sensor according to the target values of the one or more exposure parameters.

Abstract: A core sample holder assembly for performing core flood experiments includes a first end cap having a first cylindrical body with a first central chamber and a first inner end that is ring shaped, and a second end cap having a second cylindrical body with a second central chamber and a second inner end that is ring shaped. Three flow lines are spaced elevationally apart, the three flow lines extending from a first outward end to a first inward facing surface of each end cap. A flexible sleeve circumscribes the first end cap and the second end cap. A test sample bore is defined by the first inner end, the second inner end, and an inner diameter surface of the flexible sleeve. A central axis extends through the first end cap, the second end cap, and the flexible sleeve, the first end cap, the second end cap, and the flexible sleeve being axially aligned.

Abstract: A load driver for driving a load and an LED module are disclosed. In one embodiment, the load driver comprises a converter circuit comprising a controllable switching element configured to be turned on and off and to perform power factor correction for power from a power supply to the load, wherein a control terminal of the controllable switching element is configured for receiving a startup current via the two output terminals, the controllable switching element configured to be turned on by the startup current. The converter circuit further comprises a first inductor, coupled to the power supply at a first end, and to ground at a second end via the controllable switching element, wherein a first one of the output terminals connects to a second end of the first inductor via a diode forwarded from the first inductor, a second one of the output terminals is coupled to the first end of the first inductor.

Abstract: Embodiments of packaged semiconductor devices and lead frames for such devices are provided, such as a lead frame including: a row of lead fingers, wherein an outer end of each lead finger is connected to a leaded side of the lead frame; a package body perimeter that indicates placement of a package body of the packaged semiconductor device, wherein an inner end of each lead finger falls within the package body perimeter; a retention tab that protrudes from an interior edge of a non-leaded side of the lead frame, wherein the retention tab falls outside of the package body perimeter; and a non-conductive tie bar structure attached to the retention tab, wherein the non-conductive tie bar structure falls within the package body perimeter.

Abstract: Embodiments of packaged semiconductor devices and lead frames for such devices are provided, such as a lead frame including: a row of lead fingers, wherein an outer end of each lead finger is connected to a leaded side of the lead frame; a package body perimeter that indicates placement of a package body of the packaged semiconductor device, wherein an inner end of each lead finger falls within the package body perimeter; a retention tab that protrudes from an interior edge of a non-leaded side of the lead frame, wherein the retention tab falls outside of the package body perimeter; and a non-conductive tie bar structure attached to the retention tab, wherein the non-conductive tie bar structure falls within the package body perimeter.

Abstract: One or more techniques and/or systems are disclosed for interrupting fluid flow when experiencing fuel leaking conditions, such as an out of specification connection between the fuel source and a device utilizing the fluid. A distal end of a valve body has interfaces with at least a portion of a connection to a fluid supply; and a proximal end interfaces with at least a portion of a fuel intake. An internal passage runs between the proximal end and distal ends of. A displacement member in the internal passage comprises a distal portion that extends out of the valve to engage a valve to the fuel supply. A retention cap selectably engaged with the valve body can comprise a material that deforms under force at a predetermined temperature, resulting in a release of the displacement member under a biasing force form a biasing component between the cap and displacement member.

Abstract: A retrofit Light Emitting Diode, LED, tube for connecting to a High Frequency, HF, ballast, which LED tube comprises a switchable capacitor arrangement for ensuring that the ballast does not go into over current protection mode, wherein the switching is controlled based on a desired dimming level of the LED tube. The switchable capacitor arrangement is provided in parallel with said input of said rectifier, and comprises at least a first capacitor and a second capacitor in series, and said control circuit is adapted to configure said switchable capacitor arrangement to conduct the AC power and switch at least one of the first capacitor and the second capacitor between the rectifier and the LED array to block the DC power to said LED array.

Abstract: Provided is a production process for powdered sugar and liquid syrup, comprising the steps of primary pressing sugar cane juice extraction, three-stage physical filtration, and sugar boiling, wherein the step of the three-stage physical filtration respectively uses a sieve plate, a bagasse separator and a micro-filtration membrane for filtration. The bagasse separator comprises a screen cylinder transversely arranged inside a separation bin. The inlet and outlet of the screen cylinder are respectively connected to a feeding bin and a discharging bin. A juice outlet and a bagasse outlet are respectively provided under the separation bin and the discharging bin. A propeller blade component is provided inside the screen cylinder. The propeller blade component is formed by combining vertical mixing blades with helical blades.

Abstract: Provided are a power flow calculation method and device for an alternating current (AC)-direct current (DC) interconnected power system, a storage medium and terminal. A state of a DC network is calculated according to a control mode of a converter station, and a connection point between the DC network and an AC network is equivalent to a power node; and power flow calculation is performed through a Newton-Raphson method.

Abstract: There is proposed an interface circuit for connecting an electronic ballast to a lighting arrangement, in which control of a coupling configuration of the interface circuit is dependent upon a frequency of the electronic ballast. In particular, a coupling configuration of the interface circuit is controlled by a control arrangement based on the ballast frequency.

Abstract: One or more techniques and/or systems are disclosed for interrupting fluid flow when experiencing fuel leaking conditions, such as an out of specification connection between the fuel source and a device utilizing the fluid. A distal end of a valve body has interfaces with at least a portion of a connection to a fluid supply; and a proximal end interfaces with at least a portion of a fuel intake. An internal passage runs between the proximal end and distal ends of. A displacement member in the internal passage comprises a distal portion that extends out of the valve to engage a valve to the fuel supply. A retention cap selectably engaged with the valve body can comprise a material that deforms under force at a predetermined temperature, resulting in a release of the displacement member under a biasing force form a biasing component between the cap and displacement member.

Abstract: The invention describes a coded light modulation arrangement (1), adapted to be connected between a driver (31) and a LED (3), which coded light modulation arrangement (1) comprises input terminals (10) adapted to connect to the driver (31) and to receive a drive current (IDRIVE), an energy storage arrangement comprising a number of energy storage devices (E1, E2); a data input interface (12) realized to receive a data stream (D), said data stream (D) comprises a sequence of binary symbols comprising a logic high and a logic low; a switch arrangement comprising a number of switches (S1, S2) arranged to connect the energy storage devices (E1, E2) of the energy storage arrangement and to modulate the drive current such that, in a charging switch configuration corresponding to the logic low, a negative modulation current (INEG) is diverted from a drive current (IDRIVE) of the LED (3) to the energy storage arrangement; and, in a discharging switch configuration corresponding to the logic high, a positive modulati

Abstract: An aerothermal-radiation correction method, including: using a Gaussian surface to approximate a thermal radiation noise, performing a Fourier transform on the Gaussian surface so as to obtain a centralized spectrum of the thermal radiation noise, constructing a filter function H based on the centralized spectrum of the thermal radiation noise; performing a Fourier transform on the aerothermal-radiation degraded image f so as to obtain a centralized spectrum F, taking dot product of F and H to obtain a filtered spectrum G; and performing an inverse Fourier transform on filtered spectrum G to obtain a modulus, and acquire a corrected image. The method effectively removes background noise generated by aerothermal radiation, greatly improves image quality and image signal-to-noise ratio. The method features reduced computational complexity and a shorter operation time, and is suited for real-time processing.

Abstract: The invention describes a coded light modulation arrangement (1), adapted to be connected between a driver (31) and a LED (3), which coded light modulation arrangement (1) comprises input terminals (10) adapted to connect to the driver (31) and to receive a drive current (IDRIVE), an energy storage arrangement comprising a number of energy storage devices (E1, E2); a data input interface (12) realized to receive a data stream (D), said data stream (D) comprises a sequence of binary symbols comprising a logic high and a logic low; a switch arrangement comprising a number of switches (S1, S2) arranged to connect the energy storage devices (E1, E2) of the energy storage arrangement and to modulate the drive current such that, in a charging switch configuration corresponding to the logic low, a negative modulation current (INEG) is diverted from a drive current (IDRIVE) of the LED (3) to the energy storage arrangement; and, in a discharging switch configuration corresponding to the logic high, a positive modulati