Abstract: Techniques are disclosed for improved video coding with virtual reference frames. A motion vector for prediction of a pixel block from a reference may be constrained based on the reference. In as aspect, if the reference is a temporally interpolated virtual reference frame with corresponding time close to the time of the current pixel block, the motion vector for prediction may be constrained magnitude and/or precision. In another aspect, a bitstream syntax for encoding the constrained motion vector may also be constrained. In this manner, the techniques proposed herein contribute to improved coding efficiencies.

Abstract: The present disclosure relates to the technical field of composite coating preparation, in particular to a method for plasma-assisted and multi-step continuous preparation of a diffusion layer/amorphous carbon film composite coating and use thereof. In the present disclosure, a high-temperature plasma carburizing/nitriding technology and a low-temperature plasma carbon coating technology are combined by a plasma activation technology with argon ion under gradient cooling, and the surface of a material is activated by multiple bombardment on the surface of the material with high-energy argon ions. In this way, a cluster-like porous and loose structure on a surface of the diffusion layer is removed.

Abstract: Provided are an electromagnetic heating device, a noise suppression method, a heating control system, and a storage medium, which relate to the field of electromagnetic heating technologies. The noise suppression method includes: in response to determining that any two adjacent heating modules of the electromagnetic heating device operate successively, obtaining a start operating frequency of the last-started heating module of the two adjacent heating modules; and adjusting an operating frequency of the first-started heating module of the two adjacent heating modules based on the start operating frequency of the last-started heating module, to allow the two adjacent heating modules to operate synchronously at a same operating frequency when the last-started heating module starts operating.

Abstract: A vehicle running system based on rail transport, including a track, a framework, two levitation devices and a running device. The track is provided with a slot, in which the framework is provided. The levitation devices are provided between the track and the framework, and a top surface of the levitation device is fixedly connected to a bottom surface of the framework through a suspension structure. The running device includes two conductor plates and two running structures. The conductor plates are fixedly arranged on the inner wall of the slot, and are corresponding to the running structures. The reluctance force of magnetic wheels is converted into a driving force to drive maglev vehicles, and the levitation force is converted into a guiding force to realize the self-stabilization of vehicle guidance. A vehicle running method based on this system is also provided.

Abstract: A microelectromechanical system (MEMS) strain gauge pressure sensor includes a top wafer stack having a top surface and a first cavity that is configured to receive a first fluid at a first pressure, a backing wafer having a bottom surface opposite the top surface of the top wafer stack; a diaphragm wafer positioned between the top wafer stack and the backing wafer and having a second cavity that is configured to receive a second fluid at a second pressure, and a pedestal connected laterally to the top wafer stack, the backing wafer, and the diaphragm wafer. The diaphragm wafer includes a diaphragm extending between the first cavity and the second cavity, and a resistor positioned on the diaphragm. The MEMS strain gauge pressure sensor has a central axis such that the MEMS strain gauge pressure sensor has mechanical symmetries about the central axis.

Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronization information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a null data packet to a station device. In one aspect, during the second time period, the slave access point transmits the portion of the null data packet to the station device, based on the synchronization information for the joint transmission. In one aspect, the station device determines steering information for the MIMO communication, according to the null data packet.

Abstract: A levitation, propulsion and guidance integrated magnetic levitation system and an improvement method of levitation and guidance. The system includes a maglev train and a maglev track. The maglev train is provided with a permanent magnet array. The maglev track is provided with a driving device and a levitation driving device in sequence along a running direction of the maglev train. An iron plate is arranged in the middle of the maglev track. The driving device accelerates the maglev train from 0 to take-off velocity. The levitation driving device provides a driving force and a levitation force for the maglev train. The iron plate enables the centered running of the maglev train.

Abstract: An oil-gas-water three-phase automatic metering device and method includes a liquid inlet pipe, a pump body, a degassing assembly, a water inlet assembly, first and second liquid storage pipes, a weighing assembly, and a control unit. The liquid inlet pipe, degassing assembly, one end of the first liquid storage pipe and one end of the second liquid storage pipe are connected to four valve ports of a first changeover valve, respectively. The water inlet assembly, one end of the pump body, the other end of the first liquid storage pipe, and the other end of the second liquid storage pipe are connected to four valve ports of a second changeover valve, respectively. The degassing assembly, the water inlet assembly and the other end of the pump body are in communication with the weighing assembly, and the pump body, degassing assembly and weighing assembly are communicatively connected to the control unit.

Abstract: A permanent magnet electrodynamic suspension system includes a conductor track and a suspension and guidance device. The conductor track is disposed on a roadbed, and the suspension and guidance device is disposed above the conductor track. The suspension and guidance device includes a first permanent magnet array and a second permanent magnet array. The first permanent magnet array and the second permanent magnet array are the same in the magnetization direction arrangement. The first permanent magnet array and the second permanent magnet array are arranged perpendicular to each other. A guidance method for the permanent magnet electrodynamic suspension system is further provided.

Abstract: The disclosure discloses an outdoor viscous trap mosquito killing lamp including a lamp body, wherein the outdoor viscous trap mosquito killing lamp further includes a frame and a base, the lamp body is positioned above the base, the frame is connected between the lamp body and the base; a light emitting assembly of the lamp body extends into the frame; a trapping plate is arranged on the base and is positioned within the frame, the trapping plate is positioned below the light emitting assembly; an area between the light emitting assembly and the trapping plate serves as a trapping area. The outdoor mosquito eradication lamp is both safe and environmentally friendly and is convenient to be cleaned up.

Abstract: The disclosure discloses a viscous outdoor mosquito killing lamp including a lamp body which includes a housing within which a lighting lamp is disposed; wherein the housing is provided with a trapping chamber, a sidewall of the trapping chamber is provided with a first through hole for flying insects to pass through; a trapping plate is detachably connected to the sidewall of the trapping chamber, and a viscous sticker is attached onto the trapping plate. The outdoor mosquito killing lamp is safe and environmentally friendly, and is more convenient to be cleaned up.

Abstract: The disclosure discloses an outdoor viscous mosquito killing lamp, including a lamp body including a housing within which is disposed a lighting lamp, wherein a viscous trap chamber and a viscous trap plate are provided on the housing, and a side wall of the viscous trap chamber is provided with a first through hole configured for passage of flying insects; the side wall of the viscous trap chamber is further provided with a draw opening through which the viscous trap plate is pushed into or pulled out of the viscous trap chamber; a first viscous sticker is provided on the viscous trap plate. The outdoor mosquito eradication lamp is both safe and environmentally friendly and is convenient to be cleaned up.

Abstract: The disclosure discloses a portable mosquito killing lamp including a housing and a lamp cover connected to the housing; a mosquito killing assembly and a light emitting assembly are arranged on the housing; the light emitting assembly includes an illuminant and a dazzling cover, and the illuminant and the dazzling cover are connected to the housing and are disposed between the housing and the lamp cover; the dazzling cover covers the illuminant and is disposed inside the lamp cover. The portable mosquito killing lamp has not only functions of lighting and mosquito killing, but also has function of entertainment, which can meet the needs of modern people.

Abstract: The disclosure discloses an outdoor mosquito killing lamp including a housing and a lamp cover connected to the housing; a mosquito killing assembly and a light emitting assembly are provided on the housing; the light emitting assembly includes an illuminant and a dazzling cover, the illuminant is connected to the housing and disposed between the housing and the lamp cover; the dazzling cover covers the illuminant and is disposed inside the lamp cover, and the lamp cover or the housing is provided with a connecting member. The outdoor mosquito killing lamp has not only the functions of lighting and mosquito killing, but also has the function of entertainment, which can meet the needs of modern people.

Abstract: The present disclosure discloses a mosquito killing lamp including a housing, a mosquito killing assembly and a light emitting assembly; the mosquito killing assembly and the light emitting assembly are mounted on the housing; the light emitting assembly includes an illuminant, a dazzling cover, and an actuator; both of the actuator and the illuminant are mounted on the housing, and the dazzling cover is mounted on a torque output shaft of the actuator and covers the illuminant. The mosquito killing lamp not only has the functions of lighting and mosquito killing, but also has the function of entertainment, which can meet the needs of modern people.

Abstract: A magnetic wheel driving device and a driving method using the same. The magnetic wheel driving device includes a vehicle body, a guide rail system, at least two magnetic wheel systems and a power system. The guide rail system includes two conductor plates, respectively arranged at two sides of the vehicle body. The at least two magnetic wheel systems are symmetrically arranged at two side walls of the vehicle body. A gap is provided between each magnetic wheel system and the corresponding conductor plate. The power system is configured to drive the at least two magnetic wheel systems to rotate.

Abstract: A method for forming a component includes estimating a dosing plan for powder of a powder bed fusion (PBF) system needed to form the component. The dosing plan includes powder dosing requirements needed per layer to form the component. The method includes providing the dosing plan to a controller of the PBF system. Further, the method includes regulating the powder being supplied to a build chamber of the PBF system from a supply chamber of the PBF system based on the dosing plan. In addition, the method includes additively manufacturing the component via the PBF system using the powder.