Abstract: A phase shifting device, an antenna unit and abase station are disclosed. According to an embodiment, the phase shifting device comprises a power divider and a phase shifter. The power divider comprises an input inlet for an input signal, a first output outlet connected with an impedance member having a system impedance, and a second output outlet connected with the phase shifter. The phase shifter comprises a first plate and a second plate slidable relative to the first plate. Two parallel microstrip lines are provided on a first surface of the first plate. An adjusting member is provided on a second surface of the second plate that faces to the first surface of the first plate.

Abstract: Disclosed is a vision training device. The vision training device includes: a treatment unit configured to generate treatment light for irradiating eyes of a user, an adjustment unit configured to adjust a position of the treatment unit, an imaging unit configured to image the eyes of the user, and a control module configured to receive data information generated by an analysis module. According to the vision training device, the imaging unit is arranged to shoot a position image of the eyes of the user, then a position of the eyes is converted into digital coordinate information, and a motor drives a gear and a toothed plate to mesh with each other, thereby achieving an effect of automatically adjusting a lens barrel, improving adjustment precision, improving adjustment efficiency, and achieving higher convenience.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: A current sensor includes: four first uniaxial TMR chips and at least two second uniaxial TMR chips, each first uniaxial TMR chip and each second uniaxial TMR chip being located on the same virtual ring, wherein magnetic sensitive directions of the four first uniaxial TMR chips are perpendicular to a radius of the virtual ring, magnetic sensitive directions of two adjacent first uniaxial TMR chips are perpendicular to each other, magnetic sensitive directions of the two second uniaxial TMR chips are parallel to the radius of the virtual ring and opposite to each other, and the two second uniaxial TMR chips respectively have the same positions as two first uniaxial TMR chips; each first uniaxial TMR chip and each second uniaxial TMR chip are configured to collect a magnetic induction intensity, the magnetic induction intensity is configured to calculate a target current value of a to-be-measured wire.

Abstract: A device and a method for experimental exploitation of natural gas hydrates in full-sized production wells are provided. The device includes a full-diameter well, and the full-diameter well includes a heating circulation tube, a temperature sensor tube, an upper sealing unit and a lower sealing unit. Perforations are provided along a body of the full-diameter well. A reactor includes an upper cover, a lower cover, and a reactor body. The method is conducted by using the device and the reactor. The device and method allow simulation of sand-control wellbores in actual exploitation of natural gas hydrates, and realize horizontal and vertical sand-control experiments.

Abstract: Disclosed are a device of complex gas mixture detection based on optical-path-adjustable spectrum detection and a method therefor, and the device includes: a light source configured for generating an incident beam and emitting the incident beam into an optical gas cell; the optical gas cell, including a cavity configured for accommodating a gas sample, and a reflection module group configured for reflecting the incident beam and a track arranged in the cavity, where the track is consistent with a light path of the light beam in the cavity; a detector module that is connected with the track in a relatively movable manner and is configured for receiving light beams and obtaining spectral data, where an optical path is changed by moving the detector module relative to the track; and a data acquisition unit that is configured for acquiring the spectral data obtained by the detector module.

Abstract: A lamp includes a cover plate, a housing, and a light source assembly. At least one side wall of the housing is a light-emitting surface; the cover plate and the housing are enclosed to form an accommodating space; the light source assembly is arranged in the accommodating space; and the light source assembly emits light toward the cover plate.

Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.

Abstract: A battery cell includes: a shell, including a first wall; an electrode assembly, disposed inside the shell; and a terminal assembly, including an electrode terminal and an elastic member. The electrode terminal includes a fixed portion for electrical connection with the electrode assembly and a movable portion for electrical connection with a current collecting component. The fixed portion is fixedly disposed on the first wall. The movable portion is movably disposed on the first wall, and has a first position in contact with the fixed portion and a second position separated from the fixed portion. The elastic member is used for applying elastic force to the movable portion to maintain the movable portion in the first position. The movable portion is configured to move from the first position to the second position against the elastic force when internal pressure of the battery cell reaches a threshold.

Abstract: The present invention belongs to the field of printing, and specifically relates to a method for acquiring a color density characteristic curve in printing, including: designing a standard N-color level image of a single color channel; performing printout and scan correction on the standard N-color level image; performing edge finding operation on a corrected image; dividing the image into regions; and calculating a deviation. According to the method for acquiring a color density characteristic curve in printing by channels provided by the present invention, the color density characteristic curve of all the color channels may be obtained by sequentially using the method in the present invention on the color channels. The method in the present invention provides a basis for studying the performance of a printing system and further solving the problem of color density characteristic deviations at different positions.

Abstract: A type of high-strength and ductile multicomponent precision resistance alloys and fabrication methods thereof are provided. The alloys are composed of the following components by atomic percentage: Ni 45-60%, Cr 15-30%, Fe 5-20%, Al 5-15%, Mn 3-5%, Cu 0.2-3%, Si 1-5%. Particularly, the sum of the atomic percentages of Mn, Cu and Si is ?13% and ?4.2%, the sum of the atomic percentages of Ni, Cr, Fe and Al is ?70% and ?95.8%, and the sum of the atomic percentages of all the components is 100%. The multicomponent alloys prepared by the methods exhibit face-cantered cubic matrix and possess high strength and good ductility; further, they have high resistivity and excellent resistivity stability in wide temperature ranges below 773 K.

Abstract: A display panel, a display module and a display device, and relates to the field of display technology and includes: a first base substrate and a second base substrate arranged oppositely; a liquid crystal layer and a plurality of conductive layers, wherein the liquid crystal layer and the plurality of conductive layers are located between the first base substrate and the second base substrate; and a plurality of heating elements, wherein the plurality of heating elements are distributed in at least one of the conductive layers.

Abstract: An air-cooling water chiller includes a heat exchanger, a water-cooling system, and a refrigeration system. Heat is exchanged between the water-cooling system and the refrigeration system through the heat exchanger, and the refrigeration system and the water-cooling system are arranged in an up and down direction. The heat exchanger is embedded in the water-cooling system and leans towards the refrigeration system. The refrigeration system and the water-cooling system are arranged separately, so that heat dissipations of the refrigeration system and the water-cooling system do not interfere with each other, and pipelines do not intertwine with each other, making the later maintenance very convenient and simple. In addition, the refrigeration system and the water-cooling system are arranged in an up and down direction, so that an occupation area is small, making multiple systems convenient to be arranged in parallel for later.

Abstract: Provided are a method for calibrating sensors in a vending machine and a vending machine. input values of first input terminals and input values of second input terminals of sensors are determined through level 1 calibration and level 2 calibration, respectively, which may greatly increase the number of adjustable grades of the luminous intensity of an optical generator of each sensor, and may further greatly improve the success rate of calibration on the sensors.

Abstract: A method and device for processing information, and a storage medium is provided. The method is applied to an authorization proxy server, and includes receiving a first account information of a first vehicle-mounted terminal, determining, based on an associating record of a user account service, that a first account corresponding to the first account information is an authorized account that has been associated with the user account service, and authorizing the first account with a control right for controlling a device to be controlled.

Abstract: A type of high-strength and ductile multicomponent precision resistance alloys and fabrication methods thereof are provided. The alloys are composed of the following components by atomic percentage: Ni 45-60%, Cr 15-30%, Fe 5-20%, Al 5-15%, Mn 3-5%, Cu 0.2-3%, Si 1-5%. Particularly, the sum of the atomic percentages of Mn, Cu and Si is ?13% and ?4.2%, the sum of the atomic percentages of Ni, Cr, Fe and Al is ?70% and ?95.8%, and the sum of the atomic percentages of all the components is 100%. The multicomponent alloys prepared by the methods exhibit face-cantered cubic matrix and possess high strength and good ductility; further, they have high resistivity and excellent resistivity stability in wide temperature ranges below 773 K.

Abstract: According to a first aspect of the present invention there is provided a quad-flat-no-leads (QFN) packaged semiconductor device having a QFN bottom surface and QFN side faces, wherein the QFN side faces each comprise an upper portion and a recessed lower portion, the QFN packaged semiconductor device comprising: a die pad within or on the QFN bottom surface; a plurality of I/O terminals spaced apart from the die pad and around a periphery of the bottom surface, each having a bottom face extending from an inner end to a peripheral end, an exposed side face on a QFN side face and extending above the recessed lower portion of the QFN side face; wherein the QFN bottom surface includes at least one trench therein, parallel to a one of the QFN side faces and exposing at least a part of a side face of the inner end of the I/O terminals. The trench may provide for additional surface area, and provide a stronger solder joint when the QFN packaged semiconductor device is soldered to a substrate or circuit board.

Abstract: One or more processors of a computing system, such as a server architecture, such as a disaggregated server architecture. The one or more processors are to access cable information pertaining to a cable coupled to an I/O port of the computing system. The one or more processors are to configure a first memory circuitry of the computing system based on the cable information. A cable structure includes the cable, and further includes a second memory circuitry storing the cable information, and accessible by the one or more processors.

Abstract: Provided are a method for calibrating sensors in a vending machine and a vending machine. input values of first input terminals and input values of second input terminals of sensors are determined through level 1 calibration and level 2 calibration, respectively, which may greatly increase the number of adjustable grades of the luminous intensity of an optical generator of each sensor, and may further greatly improve the success rate of calibration on the sensors.