Abstract: An apparatus includes a transducer assembly including a transducer housing and an ultrasonic transducer disposed within the transducer housing. A transducer horn is disposed at least partially within the transducer housing and includes a probe coupling. A first probe includes a first coupler and a first elongate member coupled to the first coupler. The first coupler has a first coupling portion and a second coupling portion, and the first coupling portion is configured to be releasably coupled to the probe coupling of the transducer horn such that the first probe is coupled to the ultrasonic transducer. A second probe includes a second coupler and a second elongate member coupled to the second coupler. The second coupler has a third coupling portion releasably couplable to the second coupling portion of the first coupler such that the second probe is coupled to the ultrasonic transducer.

Abstract: A security inspection device, a security inspection system and a security inspection method are provided, the device includes: a support frame defining an inspection channel; a first X-ray accelerator provided at a position of a top portion of the support frame and the position is offset from a centerline of the inspection channel, where the first X-ray accelerator is configured to radiate a first X-ray towards the inspection channel to inspect an object; a second X-ray accelerator configured to radiate a second X-ray to the inspection channel to inspect the object; and a detector apparatus, including: detector modules provided on the support frame and facing the first X-ray accelerator and the second X-ray accelerator, the detector modules receive the first X-ray and/or the second X-ray to form a transmission image of the object; the first X-ray, the second X-ray, and the detector modules are located in the same plane.

Abstract: An electrical connector includes an insulating body and a first terminal module. The insulating body includes a main body and an extension plate. The main body defines a first installation groove. The first terminal module includes a first conductive mounting block, a first terminal assembly and a first cable. The first terminal assembly includes a first insulating block and a number of first conductive terminals provided on the first insulating block. The first terminal module at least partially passes through the first installation groove. The first conductive mounting block, the first insulating block and the extension plate together form at least part of a tongue plate of the electrical connector. The tongue plate is configured to be inserted into a mating slot of a mating connector. An electrical connector assembly having the electrical connector is also disclosed.

Abstract: A backplane connector includes a housing, an insulating body, a terminal module and a metal shield surrounding member. The housing includes a base, a first side wall, a second side wall and a receiving space. The metal shield surrounding member is sleeved on the insulating body. The metal shield surrounding member includes a surrounding portion protruding into the receiving space. The surrounding portion defines an inner cavity. The surrounding portion includes a port portion and a reflective piece bent from the port portion. The reflective piece extends at least partially into the inner cavity and is configured to adjust impedance of a signal terminal to a certain extent.

Abstract: An electrical connector includes an insulating body, a number of conductive terminals and a number of cables. The insulating body includes a tongue plate and an additional tongue plate. The plurality of conductive terminals include a first conductive terminal and a first additional conductive terminal. Each conductive terminal includes a mating portion. The mating portion of the first conductive terminal is exposed on a surface of the tongue plate. The mating portion of the first additional conductive terminal is exposed on a surface of the additional tongue plate. The cables include a first cable and a first additional cable. The first cable is electrically connected to the first conductive terminal. The first additional cable is electrically connected to the first additional conductive terminal. An electrical connector assembly having the electrical connector is also disclosed.

Abstract: A mating connector includes a mating insulating body and a number of mating terminals. The mating connector is configured to be installed on a first circuit board in a first position for mating with a first electrical connector. The first electrical connector includes a first cable. The mating connector is also configured to be installed on a second circuit board in a second position for mating with a second electrical connector. The second electrical connector includes a second cable. The mating connector in the second position is formed by rotating the mating connector in the first position by 180 degrees in a plane where the first circuit board is located. Neither the first cable nor the second cable is folded, and outlet directions of the first cable and the second cable are the same. An electrical connector assembly including the mating connector is also disclosed.

Abstract: An electrical connector includes an insulating body and a number of conductive terminals. The insulating body includes a first extension portion and a second extension portion. The first extension portion includes a first extension protrusion, a second extension protrusion and a first slot. The second extension portion includes a third extension protrusion, a fourth extension protrusion and a second slot. The first extension protrusion, the second extension protrusion, the third extension protrusion and the fourth extension protrusion are configured to be inserted into a mating connector. The first slot and the second slot are configured to snap with the mating connector. The mating connector includes a first accommodating sub-groove, a second accommodating sub-groove, a third accommodating sub-groove and a fourth accommodating sub-groove configured to lock with the electrical connector. An electrical connector assembly is also disclosed.

Abstract: An electric connector includes an insulating body, a first terminal module and a first shielding piece. The first terminal module is mounted to the insulating body. The first terminal module includes a number of pairs of first signal terminals and a number of first ground terminals. Each first ground terminal includes a first main body portion, a first mating portion and a first tail portion. The first tail portions of the number of first ground terminals are connected together through a first connection portion. The first shielding piece includes a first shielding portion and a first extension portion connected to the first shielding portion. The first main body portion is at least partially in contact with the first shielding portion. The first connection portion is at least partially in contact with the first extension portion.

Abstract: The present disclosure provides a motor and a transmission case for a high-speed wire rod integrated laying head. The motor includes a stator, a rotor, and front and rear bearing end covers used for supporting and fixing the rotor, and a shaft forming the rotor is axially provided with a through hole capable of allowing a workpiece to pass through. The shaft forming the rotor of the motor and provided with the through hole is directly connected to the hollow shaft component forming the transmission case, or a rotor coil component is arranged on the periphery of the middle section of the hollow shaft component forming the laying head, and a stator coil component is arranged on the inner wall of the housing corresponding to the rotor coil component.

Abstract: Disclosed are a stress-resistant, creep-resistant, high-temperature resistant and high-insulation sheath material for a maglev train cable, and a manufacturing method and use thereof. A multiple chemical crosslinking structure is constructed by blending a functional polyvinylsilicone grease with ultra-high molecular weight polyethylene (UHMWPE) and a ceramicized silicone rubber as a cable material matrix and using electron beam irradiation. In addition, organic/inorganic fillers in the matrix can form physical crosslinking points in the material. A physical-chemical dual crosslinking structure is constructed in the matrix, which can limit the motion and relaxation of molecular chains and improve the interaction between the insulation layer and sheath layer and refractory layers such as fillers and mica tapes to avoid the relative displacement during the laying and operation and improve the high-temperature resistance, creep resistance and stress relaxation resistance of a UHMWPE cable sheath material.

Abstract: A method for detecting an overlay precision and a method for compensating an overlay deviation are provided.

Abstract: An electrical connector includes an outer insulating body, a first sub-connector, an identification connector and a terminal module. The outer insulating body includes an accommodating space and a second slot located beside of the accommodating space. The first sub-connector includes a first insulating body and a number of first terminals. The first insulating body includes a first slot. The outer insulating body is sleeved on the first sub-connector with the first insulating body accommodated in the accommodating space. Such arrangement simplifies the mounting of the electrical connector. A method for mounting the electrical connector is also disclosed.

Abstract: The present invention generally relates to the field of conformance control in oil fields, particularly to a re-crosslinkable preformed particle gel system, and composition thereof. The composition of the re-crosslinkable preformed particle gel system contains monomers, crosslinkers, a polymer matrix, and additives. Components in the composition for re-crosslinkable preformed particle gel in the present invention have excellent compatibility with each other, and the obtained gel has excellent long term high-temperature resistance property. Different from prior products, in the re-crosslinkable preformed particle gel compositions according to embodiments of the present invention, the components that are used to re-crosslink the particle gels may be grafted on the polymer chain and will act as initiator or secondary crosslinker in different conditions. During particle injection process, all compositions would move together, thereby avoiding chromatographic problems typical of prior products.

Abstract: The present disclosure provides a seat support applied to a vehicle, the vehicle has a front seat assembly and a back seat assembly. The seat support includes a support member, a connecting member and a fixing assembly. The support member includes a support portion arranged on the back seat assembly. The connecting member is arranged on the support portion and configured to connect the support portion with the front seat assembly. The fixing assembly is arranged on the support portion and configured to fix the support portion with the back seat assembly.

Abstract: A mobile robot map construction method and apparatus, and a computer device and a storage medium. The mobile robot map construction method comprises: acquiring the number of floors and current floor information (S202); acquiring point cloud data of an environment around the current location by means of a laser radar, acquiring image data of the environment around the current location by means of a camera, and constructing an environment map according to the point cloud data and the image data and labeling a glass location (S204); determining whether there is an area to be detected in the environment map, and if there is an area to be detected, detecting said area according to a pre-set rule (S206); and if there is no area to be detected, moving to the nearest elevator in an obstacle avoidance mode according to an elevator location marked on the environment map, and taking the elevator to an undetected floor until environment map construction of all undetected floors is completed (S208).

Abstract: Disclosed are a stress-resistant, creep-resistant, high-temperature resistant and high-insulation sheath material for a maglev train cable, and a manufacturing method and use thereof. A multiple chemical crosslinking structure is constructed by blending a functional polyvinylsilicone grease with ultra-high molecular weight polyethylene (UHMWPE) and a ceramicized silicone rubber as a cable material matrix and using electron beam irradiation. In addition, organic/inorganic fillers in the matrix can form physical crosslinking points in the material. A physical-chemical dual crosslinking structure is constructed in the matrix, which can limit the motion and relaxation of molecular chains and improve the interaction between the insulation layer and sheath layer and refractory layers such as fillers and mica tapes to avoid the relative displacement during the laying and operation and improve the high-temperature resistance, creep resistance and stress relaxation resistance of a UHMWPE cable sheath material.

Abstract: The present disclosure provides a seat support applied to a vehicle, the vehicle has a front seat assembly and a back seat assembly. The seat support includes a support member and a first connecting member. The support member includes a support portion arranged on the back seat assembly, and an anti-skid portion arranged on the support portion. The first connecting member is arranged on the support portion and configured to connect the support portion with the front seat assembly.

Abstract: A shielding shell used to at least partially surround signal terminals includes a first side wall, a second side wall and a third side wall. The second side wall connects the first side wall and the third side wall. The first side wall and the third side wall are disposed face to face. An end of at least one of the first side wall, the second side wall and the third side wall includes a deflection portion bent inwardly. The deflection portion is used to guide insertion of the shielding shell into a mating connector. As a result, a better shielding effect on the signal terminals can be provided. Besides, it is easy to guide insertion of the shielding shell into the mating connector.

Abstract: A method for evaluating performance of a natural gas analysis system includes obtaining components of a natural gas analysis system as well as the maximum allowable error and the maximum allowable deviation of a calorific value of each of the components. The method includes determining components and uncertainties of a standard gas mixture; obtaining a final peak area of each of the components in each group of standard gas mixture. The method includes obtaining calibration functions of the natural gas analysis system and analytical functions of respective components. The method includes obtaining an uncertainty and a calorific value uncertainty of each of the components. The method includes judging whether the evaluation result from the natural gas analysis system to be evaluated is qualified, and providing a performance evaluation conclusion for the natural gas analysis system.