Abstract: A liquid crystal phase shifter includes: a first substrate; a second substrate, provided opposite to the first substrate; a liquid crystal layer, provided between the first substrate and the second substrate; and a phase shift region, including a first electrode, a second electrode and a control circuit, where the first electrode is provided on a side of the first substrate close to the second substrate, the second electrode is provided on a side of the second substrate close to the first substrate, an orthographic projection of the second electrode on the first substrate partially overlaps with an orthographic projection of the first electrode on the first substrate, and the second electrode is grounded.

Abstract: This technology provides designs and methods for the vehicle on-board unit (OBU), which facilitates vehicle operations and control for connected automated vehicle highway (CAVH) systems. OBU systems provide vehicles with individually customized information and real-time control instructions for vehicle to fulfill the driving tasks such as car following, lane changing, route guidance. OBU systems also realize transportation operations and management services for both freeways and urban arterials. The OBU composed of the following devices: 1) a vehicle motion state parameter and environment parameter collection unit; 2) a multi-mode communication unit; 3) a location unit; 4) an intelligent gateway unit, and 5) a vehicle motion control unit. The OBU systems realize one or more of the following function categories: sensing, transportation behavior prediction and management, planning and decision making, and vehicle control.

Abstract: A nuclide identification method, a system and an electronic device are provided, which relates to the field of nuclide identification. According to statistical characteristics, a background probability density function and a Compton probability density function in a ROI are determined. An energy Bayesian factor and a time Bayesian factor are determined based on energy and time interval information in a sequence of the nuclear detection events obtained by measurement. By combining the two factors, Compton plateau can be effectively identified and distinguished.

Abstract: A method and apparatus for the execution of a bus controller, and a bus controller, a computer device and a storage medium. The bus controller is connected to a target device by means of a target bus, the bus controller comprises an instruction memory, which is used to store one or more instructions, and the instructions correspond to one or more bus sub-operations. The method includes: when an instruction execution command is received, acquiring an instruction from an instruction memory; parsing the instruction, and then executing one or more corresponding bus sub-operations; and executing a corresponding control or data operation on a target device by means of the one or more bus sub-operations. By means of writing different instructions into the instruction memory, various types of bus timing, including uncommon and distinct bus timing, may be generated.

Abstract: A tunable phase shifter and a method for manufacturing the same, and a tunable phase shifting device. The phase shifter includes a first substrate, a second substrate, and a tunable dielectric layer between the first substrate and the second substrate; the first substrate includes a first base substrate and a first electrode on the first base substrate; the second substrate includes a second base substrate and a second electrode on the second base substrate; an orthographic projection of the first electrode on the first base substrate is at least partially overlapped with an orthographic projection of the second electrode on the first base substrate, and sheet resistances of materials of the first electrode and the second electrode are both less than or equal to 0.024?/?.

Abstract: This application relates to the field of communication device technologies, and provides a wireless router and a control method thereof, to resolve a problem of how to improve application universality of the wireless router. The wireless router includes an omnidirectional antenna, a directional antenna, and a driving apparatus. The driving apparatus is connected to the directional antenna, the driving apparatus is configured to drive the directional antenna to rotate, so that a beam direction of the directional antenna coincides with a direction of a target beam in a beam lookup table, and the target beam is capable of covering a target device. The beam lookup table includes a set formed by beams when the directional antenna rotates to a plurality of different orientations under driving of the driving apparatus. The wireless router provided in this application is used for wireless coverage of a house building.

Abstract: Provided is a sheet forming thickness control method of an overflow brick, including: S1: obtaining a free flow thickness distribution and a free flow speed distribution of an overflow of a glass on an overflow surface of the overflow brick through simulation; S2: calculating an equivalent drawing speed distribution of an overflow guide plate and a critical equivalent drawing speed of the overflow guide plate; S3: calculating an equivalent drawing thickness distribution and a forming thickness distribution of the overflow of the glass; S4: calculating an extreme thickness difference of a formed glass substrate; and S5: when the extreme thickness difference is greater than a preset threshold, changing current parameters and repeating steps S1 to S4; and when the extreme thickness difference is smaller than or equal to the preset threshold, processing the overflow brick and producing the glass substrate in accordance with the current parameters.

Abstract: This application provides an antenna, an ultra wide band antenna array, and an electronic device, where the antenna operates in a target frequency band and is arranged on a metal substrate, and the antenna includes a first radiation patch, a second radiation patch, a first short-circuit wall, and a second short-circuit wall, a projection of the first radiation patch on the metal substrate overlaps with a projection of the second radiation patch on the metal substrate, a projection of the first short-circuit wall on the metal substrate does not overlap with a projection of the second short-circuit wall on the metal substrate, the first short-circuit wall is respectively connected to the first radiation patch and the metal substrate, the second short-circuit wall is respectively connected to the first radiation patch and the second radiation patch.

Abstract: The present application disclosed a cutting device and a cutting balloon, the cutting device includes a connection tube, at least one cutting component and a collapsible tube; the collapsible tube is made of elastic material and configured to be sleeved on the connection tube; the at least one cutting component includes a cutter body and cutting connection segments connected to the cutter body, the cutting connection segments are connected to a peripheral side of the connection tube (100) and are located in the collapsible tube; and the collapsible tube is in elastic contact against the cutting connection segments.

Abstract: A manufacturing method for a metal frame chip embedded packaging substrate includes preparing a metal plate, forming a metal frame surrounding a cavity by penetrating the metal plate, and selectively partially etching a first surface of the metal frame to form a first groove on the metal frame, embedding a chip in the cavity so that a patterned side of the chip faces the first surface, and laminating a dielectric layer on a second surface of the metal frame opposite the first surface, the dielectric layer covering a back side of the chip and filling the first groove, forming a blind hole and a window on the dielectric layer, and forming a first wiring layer on the first surface and a second wiring layer on the second surface, the first wiring layer being connected to a terminal of the chip.

Abstract: A method for preparing the ferrous sulfide-containing passivator includes: dissolving a sulfide in an alkaline solution to form a mixed solution with a pH of 12-13; adding sodium silicate to the mixed solution and stirring for 0.5-1 hour at 20-40° C.; adding an aqueous solution of ferrous salt to the mixed solution containing sodium silicate, and allowing to react at 40-60° C. for 2-3 hours; where, with decrease of the pH of the mixed solution, sodium silicate is converted into silica nanoparticles, and the ferrous salt reacts with the sulfide to form ferrous sulfide; and further adding an aqueous solution of an organic modifier, and allowing to react at 40-60° C. for 1-2 hours to form a passivator slurry including surface-modified ferrous sulfide doped with silicon dioxide; filtering the passivator slurry to form a passivator.

Abstract: A source-grid-load-storage networked collaborative frequency control method is disclosed, which comprises acquiring total active power ?P to be regulated during a secondary frequency regulation process of a power grid; performing frequency regulation by source-grid-load-storage of the power distribution system, allocating power regulation capacities, and determining whether the desired total active power is met after the frequency regulation; if the desired total active power is met, determining whether power of power generation units is out of limit; if the power of the power generation units is not out of limit, keeping active power of the power distribution system in balance to complete frequency regulation of the power grid; if the power of the power generation units is out of limit, correcting the power regulation capacities of the power generation units of the source-grid-load-storage and compensating a power difference to keep the active power of the power distribution system in balance.

Abstract: A package carrier plate with an embedded efficient heat dissipation module and a manufacturing method therefor are disclosed. The package carrier plate with an embedded efficient heat dissipation module includes: a metal carrier plate, in which a first opening frame is provided; and a metal heat dissipation module, where the metal heat dissipation module includes a first metal layer and a second metal layer, a plurality of copper walls arranged in parallel are connected between the first metal layer and the second metal layer, a phase change material is filled in a cavity formed between every two adjacent copper walls, the metal heat dissipation module is embedded in the first opening frame, and a first dielectric layer is filled in a gap between the metal heat dissipation module and an inner side wall of the first opening frame.

Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.

Abstract: A method for manufacturing embedded device packaging substrate, a packaging substrate, and a semiconductor are disclosed. The method includes: forming a first circuit layer; laminating a first photosensitive layer onto the first circuit layer; providing an embedded device on the first photosensitive layer, with a pin face of the embedded device facing away from the first photosensitive layer; providing a second photosensitive layer covering the embedded device; partially removing the first dielectric layer such that a minimum thickness of the first dielectric layer covering a side surface of the embedded device is greater than or equal to a preset threshold; providing a second dielectric layer covering the first dielectric layer; and forming, on the second dielectric layer, a second circuit layer that is electrically connected to the first circuit layer and the embedded device.

Abstract: A multi-timescale voltage regulation method based on source-grid-load-storage multi -terminal collaboration of a power distribution network is disclosed, which comprises: establishing, based on a Petri network, a multi-mode switching control model based on voltage security event trigger to realize effective control of a global voltage; establishing multi-objective optimization taking into account a source-storage-load regulation cost and a network transmission loss to realize collaborative and dynamic control of controllable resources of a source terminal, a load terminal and a storage terminal in each operating mode; and establishing a source-storage-load multi-terminal collaboration-based distributed voltage control model based on voltage security event trigger over a short timescale by taking into account the problems of voltage magnitude being out of limit and voltage leap, and solving online an optimal control sequence of the source terminal, the load terminal and the storage terminal in a receding horiz

Abstract: A multipath aggregation scheduling method and an electronic device provide for configuring transmission sequences of network packets on different paths when there are a plurality of paths between a client and a service end. This enables a network packet sent later on any of the plurality of paths to be sent first on at least one other path, thereby increasing transmission rate of the network.