Abstract: A configurable impedance circuit includes a controller that senses a rectified voltage and generates a first and second control signals based on a comparison of the rectified voltage to at least one threshold voltage. The configurable impedance circuit also includes a filter for filtering the rectified voltage that couples a plurality of capacitors in series to the rectified voltage in a first configuration based on the first control signal and couples the plurality of capacitors in parallel to the rectified voltage in a second configuration based on the second control signal.

Abstract: The present invention provides a nickel and/or chromium plated member comprising a substrate, a pretreatment plating layer deposited over the whole substrate on which a copper plating layer is formed, a functional layer formed on the copper plating layer in which the functional layer has a low potential nickel layer and a microporous nickel layer formed on the low potential nickel layer, and a decorative layer formed on the microporous nickel layer. In this invention, the microporous nickel layer and the low potential nickel layer provided on the surface of the member significantly improve the corrosion resistance and stability of the whole member and provide good brightness uniformity and binding effect of the plating layers.

Abstract: A light-emitting diode includes a first-type nitride region, a light-emitting region and a second-type nitride region, wherein the first-type nitride region includes a plurality of alternating first nitride layers and second nitride layers. The second nitride layers have high-doped emitting points pointing to the corresponding first nitride layer. The second-type nitride region includes a plurality of alternating third nitride layers and fourth nitride layers, wherein doping concentration of the fourth nitride layer is higher than that of the third nitride layer, and the fourth nitride layer has high-doped emitting points pointing to the third nitride layer.

Abstract: A converter is provided. The converter includes a first DC/DC converter, a non-isolated DC/DC converter and a control circuit. The first DC/DC converter includes a transformer, a primary side inverter and a secondary side rectifier. The primary side inverter and a secondary side rectifier are operable at multiple operating modes. The control circuit determines an operating mode for the primary side inverter or the secondary side rectifier, and controls the primary side inverter or the secondary side rectifier to change its respective operating mode.

Abstract: This disclosure discloses a method and apparatus for transmitting data in a robot operating system. The robot operating system includes a transmitting node, a receiving node, and a shared memory as a transmission medium between the transmitting and receiving nodes. The method in a particular embodiment includes: traversing, by the transmitting node, a sequence of data templates stored in advance in the shared memory, and determining whether the respective data templates in the sequence of data templates are currently being written into or read from; identifying a data template in the sequence of data templates currently being neither written into nor read from as a target data template, and obtaining information of the target data template; and writing data into the target data template according to the information of the target data template. This embodiment can improve the performance of transmitting the data while occupying less memory resources.

Abstract: Disclosed in the present application are a method and device for managing a shared memory in a robot operating system.

Abstract: A device includes a storage unit and a processing unit. The processing unit includes a processor and is coupled to the storage unit. The processing unit operates a big operating system (BOS) and a little operating system (LOS) and can dynamically switch between the BOS and the LOS according to the system loading status of the device, wherein power consumption and resource requirements of the BOS are different than those of the LOS.

Abstract: Provided herein are thiophene compounds, methods of their synthesis, pharmaceutical compositions comprising the compounds, and methods of their use. The compounds provided herein are useful for the treatment, prevention, and/or management of various neurological disorders, including but not limited to, psychosis and schizophrenia.

Abstract: Provided is a membrane electrode assembly and a fuel cell comprising such assemblies. The membrane electrode assembly comprises a polymer electrolyte membrane disposed between an anode and a cathode, the cathode comprising a metal-free, heteroatom doped carbon based material. The metal-free, heteroatom doped carbon based material may include heteroatom doped carbon nanotubes, e.g., heteroatom doped vertically aligned carbon nanotubes. The metal-free, heteroatom doped carbon based material can be any graphitic or partially graphitized carbons, which may also be chosen from heteroatom doped graphene material. The heteroatom doped graphene material may be a composite of heteroatom doped graphene and carbon nanotubes, and optionally comprises conductive carbon particles.

Abstract: The present invention provides a mechanical extending linkage configured to be mounted in a seating unit capable of being movable between a retracted position and an extended position and comprising a seat, a backrest and extendable primary and secondary footrests. The mechanical extending linkage comprises a footrest assembly for extending and retracting the primary footrest and the secondary footrest, the footrest assembly comprising a primary footrest link, a secondary footrest link, and an intermediate link set having a first intermediate link, a second intermediate link, a third intermediate link and a fourth intermediate link; the footrest assembly is configured in such a manner that the secondary footrest link, the first intermediate link and the second intermediate link are arranged substantially parallel with the seat when the seating unit is in the retracted position. The present invention further provides a seating unit comprising the mechanical extending linkages.

Abstract: In the invention a drain plug linkage device (100) is provided, comprising: a drain plug (4) at least partially disposed in a pipe body (5); a pull rod assembly including a pull rod, a link rod (2) and a pull rod connector (9), wherein the link rod (2) at its upper end comprises a receiving portion, the pull rod connector (9) comprises a central hole and adapted to be snapped into the containing portion, and the pull rod at its bottom comprises a snap portion adapted to be snapped into the central hole; and a lever member (3) comprising a first end operatively connected to the link rod (2), and a second end extending into the pipe body (5) and configured to operate the drain plug (4); wherein the receiving portion comprises an expansion portion (22) for expanding the central hole, and the pull rod connector (9) is configured, when snapped into the receiving part, to be movable between a position where the central hole is unexpanded and a position where the central hole is expanded by the expansion portion (22

Abstract: Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion time for suction cups, if used, are reduced significantly. A process without using suction cups is enabled with enhanced yield. The increased process stability and enlarged process window are particularly advantageous for processing glass sheets having high flexibility.

Abstract: A device comprises a gate drive bridge coupled between a bias voltage of a power converter and ground and a transformer connected to the gate drive bridge, wherein the transformer comprises a primary winding connected to two legs of the gate drive bridge respectively and a plurality of secondary windings configured to generate gate drive signals for low side switches, high side switches and secondary switches of the power converter.

Abstract: A fiber optic connection assembly for fiber to the home, comprising: a fan-out member; a multi-fiber optical cable having a first end introduced into the fan-out member and a second end extending out of the fan-out member; a multi-fiber optic connector connected to the second end of the multi-fiber optical cable; a plurality of single-fiber optical cables each having a first end introduced into the fan-out member and spliced with a respective one of fibers of the multi-fiber optical cable and a second end extending out of the fan-out member; and a plurality of single-fiber optic connectors connected to the second ends of the single-fiber optical cables, respectively; a plurality of first fiber optic adapters mated with the plurality of single-fiber optic connectors, respectively; and a plurality of outer shields each constructed to receive the connector and the adapter of a respective single-fiber optical cable therein, wherein the outer shield is hermetically fitted on the connector and the adapter of the re

Abstract: A co-doped carbon material, methods of making such materials, and electrochemical cells and devices comprising such materials are provided. The co-doped carbon material comprises a mesoporous carbon material doped with nitrogen and phoshporous (NPMC). The present NPMC exhibit catalytic activity for both oxygen reduction reaction and oxygen evolution reaction and may be useful as an electrode in an electrochemical cell and particularly as part of a battery. The present NPMC materials may be used as electrodes in primary zinc-air batteries and in rechargeable zinc-air batteries and many other energy systems.

Abstract: Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is an electrical power conversion system comprising a first converter stage, a second converter stage, a third converter stage, and a control system. The first converter stage is operable to boost DC power received from a DC power source. The second converter stage is operable to boost DC power received from the first converter stage. The third converter stage includes an inverter. The control system is structured to receive as input voltage (Vpv) and current (Ipv) output by the DC power source, voltage (Vdc) output by the second controller stage, and voltage (Vac) and a current (Iac) which are output by the third stage to an AC electrical power system, provide a control command for the first converter stage, and process the information of Vdc, Vac and Iac to provide control commands for the inverter switches.

Abstract: The invention disclosed an additive for preparing suede on a polycrystalline silicon chip. The invention also provides a suede preparation liquid for preparing suede on a polycrystalline silicon chip, comprising: an acid solution and the aforementioned additive for preparing suede on a polycrystalline silicon chip. The invention also provides a method for preparing suede on a polycrystalline silicon chip, by using which suede can be prepared on the surface of a polycrystalline silicon chip with the foregoing suede preparation liquid.

Abstract: The present application discloses a data transmission method and apparatus. A specific implementation of the method includes: receiving to-be-transmitted data sent from an information sending end, and determining a sending coding type of the to-be-transmitted data; determining a receiving coding type of an information receiving end receiving the to-be-transmitted data; converting the to-be-transmitted data from the sending coding type to the receiving coding type using a preset transcoding model, to obtain transcoded transmission data, the transcoding model representing a corresponding relationship between the sending coding type and the receiving coding type; and sending the transcoded transmission data to the information receiving end. This implementation improves the data transmission efficiency.

Abstract: A configurable impedance circuit is provided, including a filter for filtering a received DC voltage and a controller. The filter includes a first capacitor, a second capacitor, and a selectable switch coupled in series with the second capacitor and coupled to receive a control signal. The selectable switch and the second capacitor are selectively coupled in parallel with the first capacitor. The controller is connected to sense a differential voltage across the second capacitor and configured to generate the control signal to open or close the selectable switch based on the differential voltage across the second capacitor, so as to maintain a voltage range across the second capacitor. According to disclosure of the present invention, the total physical size of the capacitors is reduced and the size of the power supply is reduced accordingly.

Abstract: Methods, systems and device are provided for improving the range and accuracy of proximity measurement such as in ultrasonic sensing systems. In particular, the blind zone caused by reverberation signals can be reduced or eliminated by attenuating signals received during the time period corresponding to the blind zone without. In an implementation, an attenuator circuit is selected by a switch to process received signals during the blind zone time period and deselected by the switch after the time zone time period. Additionally, the accuracy and range of the measurement can be improved by varying the gain provided to the received signals based on the varying measuring distance. In an implementation, a gain-adjustable amplifier is controlled by a gain control signal to provide incremental gain as time increases.