Abstract: The present invention discloses a battery pack and an electric tool that comprises such a battery pack. A battery pack comprises: one or a plurality of battery cells, a circuit board, which is located inside the housing of the battery pack, a lead board, which is connected to the electrode terminals of one or the plurality of battery cells, and a metal plate, which is arranged on said circuit board and electrically connects said lead board to the circuit in said circuit board, wherein said metal plate is fixed to said circuit board using the surface mounting technology.

Abstract: Gallia particles containing molybdenum. A method for producing the gallia particles, including calcining a gallium compound in the presence of a molybdenum compound.

Abstract: Techniques are disclosed for a programmable processor architecture that enables data interpolation using an architecture that iteratively processes portions of a look-up table (LUT) in accordance with a fused single instruction stream, multiple data streams (SIMD) instruction. The LUT may contain segment entries that correspond to a result of evaluating a function using a corresponding index values, which represent an independent variable of the function. The index values are used to map data sample values in a data array that is to be interpolated to the segment entries. By using an iterative process of mapping data samples to valid segment entries contained in each LUT portion, the architecture advantageously facilitates scaling to support larger LUTs and thus may be expanded to enable linear interpolation on multiple dimensions.

Abstract: Disclosed is a compact, multi-user magnetic tracking system. In an embodiment, a compactness is achieved by using a single coil and inertial sensors at the transmitter and magnetometers and inertial sensors at the receiver for sensing the magnetic field generated by the single coil and for determining a position and attitude of the receiver relative to the transmitter. The transmitter and receiver each include a wireless transceiver for exchanging clock synchronization data and sending transmitter attitude data to the receiver. In another embodiment, frequency or time division multiplexing is used to differentiate between multiple users of the multi-user magnetic tracking system.

Abstract: Composite particles of the present invention include alumina particles and an inorganic coating disposed on a surface of the alumina particles, the alumina particles containing molybdenum (Mo), the inorganic coating including a composite metal oxide.

Abstract: In general, techniques are described by which to enable a transparency mode in vehicles. A device comprising one or more microphones and one or more processors may be configured to perform the techniques. The microphones may capture audio data representative of a sound scene external to a vehicle. The processors may perform beamforming with respect to the audio data to obtain object audio data representative of an audio object in the sound scene external to the vehicle. The processors may next reproduce, by interfacing with one or more speakers included within the vehicle and based on the object audio data, the audio object in the sound scene external to the vehicle.

Abstract: It relates to zirconia particles containing molybdenum and each having a polyhedron shape. The molybdenum is preferably unevenly distributed in surface layers of the zirconia particles. It also relates to a method for producing the zirconia particles. The method includes mixing a zirconium compound and a molybdenum compound to form a mixture and firing the mixture.

Abstract: Niobium oxide particles which have a controlled crystal shape and exhibit excellent characteristics are provided. The niobium oxide particles include molybdenum. The niobium oxide particles preferably have a polyhedral, columnar or acicular shape. The MoO3 content (M1) measured by XRF analysis of the niobium oxide particles is preferably 0.1 to 40 mass % relative to the niobium oxide particles taken as 100 mass %. A method for producing the niobium oxide particles described above includes calcining a niobium compound in the presence of a molybdenum compound.

Abstract: A method for determining the pore size and pore size distribution of a filtration membrane comprises: selecting a group of fluorescent pellets having different diameters and emission wavelengths as a reference; plotting the standard curve between the concentration and fluorescence intensity for each fluorescent pellet at its emission wavelength; uniformly dispensing a group of fluorescent pellets as a reference substance in water to prepare a mixed suspension of which the mass concentration of each fluorescent pellet; using the filter membrane to be tested to perform one-time filtration on the mixed suspension prepared, then performing fluorescence detection on the obtained filtrate, calculating the concentration of each fluorescent pellet in the filtrate the retention rate of the filtration membrane to be tested for each fluorescent pellet; and calculating the pore size and pore size distribution of the filter membrane to be tested accordingly.

Abstract: A light emitting keyboard includes a frame having a translucent frame body, a plurality of key modules each having a keycap, and a backlight module including a light source circuit board, a first light guide plate disposed on top of the light source circuit board, a second light guide plate disposed under the light source circuit board, a plurality of first light-emitting members extending upwardly through the first light guide plate, a plurality of second light-emitting members extending downwardly through the second light guide plate, and a reflector plate disposed under the second light guide plate. Light emitted from the first light-emitting members is transmitted in the first light guide plate and projects upwardly onto the keycaps. Light emitted from the second light-emitting members is transmitted in the second light guide plate is reflected by the reflector plate, and projects onto the frame body.

Abstract: The composite particles contain alumina particles with a card-house structure formed of three or more plate-like alumina particles that adhere to each other and an inorganic covering portion located on a surface of the plate-like alumina particles and containing a composite metal oxide.

Abstract: A device operates in pairing mode, indoor navigation mode or search mode. For each mode, a magnetic sensor in the device senses one or more alternating current (AC) magnetic fields emitted by one or more transmitters in a three-dimensional (3D) space, and uses the one or more AC magnetic fields to determine a position of the device relative to the one or more transmitters or another device. In pairing mode, relative position vectors computed from two or more AC magnetic fields allows the device to choose the closest transmitter for pairing. In indoor navigation mode, multiple detections of AC magnetic fields emitted by multiple transmitters assist a user in navigating an indoor space. In search mode, a companion device and a lost device each sense an AC magnetic field from a transmitter, and he AC magnetic fields are used to determine a relative position vector from the companion device to the lost device.

Abstract: The present invention discloses an island microgrid system and an interactive oscillation suppression method and system therefor. A source-side virtual synchronous machine and a load-side virtual synchronous machine are combined to provide virtual inertia and damping. The present invention provides a d-axis inductive current feedforward control method and a d-axis voltage feedback control method to remodel impedances of VSGs, so as to reduce impedance amplitudes of the VSGs. Therefore, low-frequency interaction between the VSG and LVSM may be suppressed. The present invention may be used to solve interactive oscillation problems of an alternating-current island microgrid composed of a plurality of source-load virtual synchronous machines.

Abstract: A battery device for powering a working device. The battery device including a locking component configured to be capable of extending out of a housing of the battery device or retracting into the housing to engage with or disengage from the working device. The battery device further including an operation component configured to be capable of being actuated by an operator. The battery device further including a transmission mechanism configured to transmit a motion of the operation component to the locking component when the operation component is actuated so as to make the locking component disengage from the working device. Wherein the transmission mechanism includes at least two connecting rods which are sequentially overlapped in a force transmission direction.

Abstract: Iron oxide particles which have a polyhedral shape and which contain molybdenum. The crystallite size of the plane of the iron oxide particles is preferably 280 nm or more. Furthermore, a method for producing the iron oxide particles. The method includes calcining an iron compound in the presence of a molybdenum compound.

Abstract: It relates to tantalum oxide particles containing molybdenum. The tantalum oxide particles preferably have a polyhedral shape, and the crystallite size of the tantalum oxide particles at 2?=22.8° is preferably 160 nm or more. It also relates to a method for producing the tantalum oxide particles, the method including firing a tantalum compound in the presence of a molybdenum compound.

Abstract: The present invention discloses a system for bridge scour multi-source monitoring, including an intelligent monitoring system, a data industrial personal computer, a 5G remote communication transmission system and a remote scour depth evaluation center. The intelligent monitoring system consists of three subsystems including a high-frequency real-time bridge dynamic characteristic monitoring system, an adjustable sound velocity underwater depth monitoring system and a scoured seabed soil pressure change testing system, which are coupled with one another to carry out triggering control to acquire lateral pile data, thereby forming a multi-source bridge local scour real-time sensing monitoring system, and realizing integration of clock synchronization, dynamic control of scour environment conditions, contact sensors and non-contact sensors.

Abstract: Systems, methods, apparatuses and non-transitory, computer-readable mediums are disclosed for short-range position tracking using a stationary magnetic field gradient. In an embodiment, a method comprises: obtaining, by a sensing array of a device worn or held by a user in an environment, a measurement of a stationary magnetic field generated by a magnetic source in the environment, the stationary magnetic field being independent of an ambient magnetic field in the environment; determining based on the measurement, a change in the magnetic field over time; determining based on the measurement, a change in the magnetic field over distance; obtaining, by the processor, a rotation angle of the device; determining a velocity of the device based on the change in the magnetic field over time, the change in the magnetic field over distance and the rotation angle of the device; and integrating the velocity to obtain a position of the device.

Abstract: This application provides a data processing method, a device, and a data transmission system. The method includes: A first device determines a first mode from a plurality of error detection and correction modes based on an obtained first status parameter of a data link. Then, the first device may indicate a second device to use the first mode for encoding, the first device may use the first mode for decoding, thereby implementing error detection and correction of transmitted data. In the method provided in this embodiment of this application, the first device and the second device may support a plurality of error detection and correction modes, and the first device may determine a used error detection and correction mode based on a status parameter of the data link.