Abstract: Systems, methods, apparatuses, and computer program for reconstructing electrocardiogram (ECG) waveforms from photoplethysmogram (PPG). A method for cardiovascular monitoring and analytics may include obtaining an electrical signal of a heart. The method may also include obtaining a circulatory signal related to a pulsatile volume of blood in tissue. The method may also include preprocessing the electrical signal and the circulatory signal. The method may further include training a mapping using the preprocessed electrical signal and circulatory signal. In addition, the method may include deriving cardiovascular data based on the trained mapping of the preprocessed electrical signal or circulatory signal.

Abstract: The present disclosure is directed to the generation of NK cells (or other lymphocytes) from induced pluripotent cells that have been derived from cells, e.g., developmentally mature T cells, and uses thereof for immunotherapy.

Abstract: Nicking molecules nick or cleave a polynucleotide molecule translocating through a real-time single-base-read nanopore sequencing device that achieves real-time single-base-read sequencing by probing individual bases of the polynucleotide molecule. The polynucleotide molecule is guided to enter and translocate through a nanopore of the nanopore sequencing device. A target sequence is determined for a nick or cleave, and the polynucleotide molecule is sequenced by the nanopore sequencing device. After reading the target sequence, an external excitation is applied to trigger one or more nicking molecules and thereby nick or cleave the polynucleotide at a location adjacent to the one or more nicking molecules. In the case of a requirement to further nick or cleave the same target sequence, the process is continued, and in the case of a requirement to nick or cleave another target sequence, another target sequence is determined.

Abstract: A steam milk frother includes: a steam preparation assembly, configured to produce a stream; an injection pipe, configured to form a plurality of foams in a liquid; a steam control valve, connected between the injection pipe and the steam preparation assembly, configured to control a flow of the steam flowing through the injection pipe; and an air control valve, connected to the injection pipe, configured to control a flow of the air flowing through the injection pipe. The injection pipe includes: an inner tube connected to the steam control valve; an air channel, formed between the inner tube and an outer tube, connected to the air control valve; a shunt ring that surrounds an end portion of the inner tube and is surrounded by an end portion of the outer tube, having a plurality of shunt holes; and a lower tube disposed below the shunt ring.

Abstract: A system for feeding a diaphragm includes a diaphragm separating device adapted to separate a diaphragm from a stack of diaphragms, a first visual device adapted to identify the diaphragm separated from the stack of diaphragms and a position of the diaphragm, a robot adapted to pick up the diaphragm separated from the stack of diaphragms under guidance of the first visual device, and a second visual device adapted to check whether the diaphragm picked up by the robot is a single diaphragm.

Abstract: Systems, methods, apparatuses, and computer program products for tracking weak signal traces under severe noise and/or distortions. A method may include tracking at least one candidate frequency trace from a time-frequency representation of a signal. The method may also include identifying a frequency trace of the signal based on tracking results. In addition, the method may include outputting an estimated frequency vector related to the frequency trace. Further, the tracking may be performed under a noisy condition environment.

Abstract: Systems, methods, apparatuses, and computer program products for contact-free heart rate monitoring and/or measurement are provided. One method may include receiving video(s) that include visual frame(s) of individual(s) performing exercises, detecting some exposed skin from the video(s), and performing motion compensation to generate color signals for the exposed skin to precisely align frames of the exposed skin. The method may also include generating the color signals by estimating a skin color for each frame by taking a spatial average over pixels of a cheek of the face(s) for R, G, and B channels, respectively, applying an operation to remove remaining motion traces from the frames such that the heart rate traces dominate, and extracting and/or outputting the heart rate of the individuals using a frequency estimator of the skin color signals.

Abstract: An oscillator circuit includes a first oscillator, a second oscillator, and a calibration circuit to calibrate the first and second oscillators. The first oscillator is supplied with a first supply voltage, and the second oscillator is supplied with a second supply voltage. The calibration includes setting a frequency control of the second oscillator at a target frequency. Then, a voltage control of the second supply voltage is adjusted incrementally until a first control value is identified at which a second oscillator output frequency matches the target frequency. Then, a voltage control of the first supply voltage is set to the first control value. Then, the voltage control for the first supply voltage is adjusted incrementally until a second control value is identified at which a first oscillator output frequency is as close to the second oscillator output frequency as is achievable, but does not exceed it.

Abstract: A digging apparatus (10, 300) is disclosed. The digging apparatus (10,300) includes a handle assembly (14, 14a, 314), a motor (32), a main switch (22, 322) electrically connected with the motor (32). The main switch (22,322) is movable between a first position in which operation of the motor (32) is allowed and a second position in which operation of the motor (32) is prevented, and a drilling bit (88, 88a, 388) is driven by the motor (32).

Abstract: An ultrasonic cleaning system comprises a cleaning tank containing a cleaning liquid, a moving and holding device configured to move a carrier into the cleaning tank and hold the carrier in the cleaning tank, and an ultrasonic wave generator mounted in the cleaning tank. A plurality of fiber optic ferrules are mounted on the carrier and are immersed in the cleaning liquid when the moving and holding device holds the carrier in the cleaning tank. The ultrasonic wave generator is adapted to emit an ultrasonic wave into the cleaning liquid to clean the fiber optical ferrules immersed in the cleaning liquid.

Abstract: A system for feeding a diaphragm comprises a diaphragm separating device adapted to separate a single diaphragm from a stack of diaphragms and a visual device adapted to identify the single diaphragm and a position of the single diaphragm separated from the stack.

Abstract: Systems, methods, apparatuses, and computer program products for contact-free heart rate monitoring and/or measurement are provided. One method may include receiving video(s) that include visual frame(s) of individual s) performing exercises, detecting some exposed skin from the video(s), and performing motion compensation to generate color signals for the exposed skin to precisely align frames of the exposed skin. The method may also include generating the color signals by estimating a skin color for each frame by taking a spatial average over pixels of a cheek of the face(s) for R, G, and B channels, respectively, applying an operation to remove remaining motion traces from the frames such that the heart rate traces dominate, and extracting and/or outputting the heart rate of the individuals using a frequency estimator of the skin color signals.

Abstract: The present utility model discloses an oil-smoke removal device, including an oil-smoke removal device body, which is provided with an air inlet at one end, and an air outlet at the other end, and an absorption and decomposition device for decomposing and absorbing the oil-smoke is provided in the middle of the oil-smoke removal device body. The oil-smoke removal device provided by the present utility model is a structure mainly applied for absorbing oil-smoke during barbecue, and it uses the absorption and decomposition device in the structure to achieve the objective of effective adsorption and decomposition of the oil-smoke contained in the oil-smoke gas, which greatly reduces the environmental pollution caused by oil-smoke emissions, resulting in a very good effect in the practical application.

Abstract: A silicon carbide diode that contains a silicon carbide substrate, a silicon carbide layer on top of the silicon carbide substrate, two first lower barrier metal portions disposed on the silicon carbide layer and separated from each other along a top surface of the silicon carbide layer, and a first higher barrier metal portion connected to the two lower barrier metal portions. The silicon carbide layer is thinner and having lower doping than the silicon carbide substrate. The first higher barrier metal portion is located between the two first lower barrier metal portions on the silicon carbide layer along a direction of the top surface of the silicon carbide layer. By reducing the leakage current at the junction barrier, the reverse breakdown voltage of the silicon carbide diode is significantly improved.

Abstract: An integrated equipment for processing a plurality of fiber optic ferrules comprises a polishing system, a ferrule cleaning system, a drying system, a wiping system, and a robot system. The polishing system polishes a plurality of front end faces of the plurality of fiber optic ferrules mounted on a carrier. The ferrule cleaning system cleans the carrier and the fiber optic ferrules on the carrier after the fiber optic ferrules have been polished. The drying system dries the carrier and the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been cleaned. The wiping system wipes the front end faces of the fiber optic ferrules on the carrier after the carrier and the fiber optic ferrules have been dried. The robot system transfers the carrier to the polishing system, the ferrule cleaning system, the drying system, and the wiping system.

Abstract: A C-element circuit for use in an oscillator or the like includes a first input terminal for receiving a first input signal, a second input terminal for receiving a second input signal, and an output latch for providing an output signal based on a relationship between the two input signals. A stack of input transistors is included with an outer pair of input transistors with gates connected to the first input terminal and an inner pair of input transistors with gates connected to a second input terminal. A balancing circuit operates to equalize a first delay of a change in the first input signal affecting the output signal with a second delay of a change in the second input signal affecting the output signal. Bypass control techniques are provided for using the C-element circuit with a single input.

Abstract: The present invention discloses an apparatus and a method for extracting a component in a solid by using nano-bubbles, the apparatus including a reaction container configured to hold a solid to be extracted, a nano-bubble generating device configured to generate a liquid containing nano-bubbles, and an energy generator, wherein the liquid containing nano-bubbles is used to be mixed with the solid to be extracted, and the energy generator is used to emit energy to the reaction container to burst the nano-bubbles and enhance the extraction effect of the solid in the liquid.

Abstract: A C-element circuit for use in an oscillator or the like includes a first input terminal for receiving a first input signal, a second input terminal for receiving a second input signal, and an output latch for providing an output signal based on a relationship between the two input signals. A stack of input transistors is included with an outer pair of input transistors with gates connected to the first input terminal and an inner pair of input transistors with gates connected to a second input terminal. A balancing circuit operates to equalize a first delay of a change in the first input signal affecting the output signal with a second delay of a change in the second input signal affecting the output signal. Bypass control techniques are provided for using the C-element circuit with a single input.

Abstract: Various example embodiments concern an integrated circuit (IC) package having a clip with a protruding tough-shaped finger portion. The clip can be used in various IC packages including, for example, soft-soldered compact power packages such as rectifiers with specified surge current capability. Such embodiments can be implemented to allow for a visual inspection capability of the soldering area for connecting a lead frame, via the clip, to a surface of the IC package die, while still providing sufficient thermal mass to limit the temperature increase during forward surge current loads. This results in a simple to manufacture design without compromising too much on performance.

Abstract: A cleaning system comprises a first cleaning tank, a carrying and moving unit, a first cleaning spray head, and a rolling brush unit. The carrying and moving unit is configured to move a polishing film to be cleaned into the first cleaning tank and hold the polishing film in the first cleaning tank. The first cleaning spray head is configured to spray a cleaning liquid on the polishing film held in the first cleaning tank. The rolling brush unit is configured to brush the polishing film while the first cleaning spray head sprays the cleaning liquid on the polishing film.