Abstract: A downhole electromagnetic logging tool comprises a transmitting system, a magnetic field sensor array and a control module. The transmitting system and the magnetic field sensor array are both connected to the control module. The transmitting system comprises an upper emission coil and a lower emission coil, which are respectively arranged above and below the magnetic field sensor array, for generating magnetic fields of opposite polarities, allowing the magnetic fields to be concentrated at the magnetic field sensor array. A casing generates a secondary magnetic field, which is received by the magnetic field sensor array to complete detection of the casing.

Abstract: Methods and systems for automatically converting devices as input sources for a session are provided. A system may establish, via a wireless network, a session between a primary client device and a server, the primary client device being associated with a plurality of secondary client devices. The system may select one or more devices, among the primary client device and the plurality of secondary client devices, based on a type of the session, as one or more input sources for the session. The system may cause the selected one or more devices to execute one or more virtual applications for using the selected one or more devices to receive an input.

Abstract: A lifting structure operating precisely and stably at all stages of a lifting and lowering action includes a lifting assembly and a driving assembly. The lifting assembly includes two first links, two second links, and two seats. A first connecting arm of each first link has first and second ends, the first end having a first gear structure. A second connecting arm of each second link has third and fourth ends, a second and complementary gear structure being provided on the third end. The first gear structures are engaged and the second gear structures are engaged. The second end is rotatably connected to the fourth end through one of the two seats. The driving assembly can drive the two seats towards each other to perform lifting or drive them away from each other to perform lowering.

Abstract: A device for double-sided processing through single shot peening includes: a shot peening system, a workpiece clamping mechanism for clamping a workpiece, and a rebound system. The workpiece is provided with a first through-hole, and the first through-hole directly faces a nozzle. The rebound system includes a reflecting surface, an open container, and a reflecting surface gripping unit. The reflecting surface includes an upper reflecting surface, a middle reflecting surface, and a lower reflecting surface. The middle reflecting surface is provided with a second through-hole. The upper reflecting surface and the lower reflecting surface are both made of flexible elastic materials and are both provided with waterproof layers. A partition plate is disposed in the open container and partitions the open container into a first cavity and a second cavity. The second cavity is provided with a filling liquid, and the partition plate is slidable in the open container.

Abstract: A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.

Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.

Abstract: Methods, systems, and devices for configurable memory die capacitance are described. A memory device may include a capacitive component, which may include one or more capacitors and associated switching components. The capacitive component may be coupled with an input/output (I/O) pad and an associated input buffer, and the one or more capacitors of the capacitive component may be selectively couplable with the I/O pad via the switching components. Switching components may be activated individually, in coordination, or not at all, such that one, multiple, or none of the capacitors may be coupled with the I/O pad. The capacitive component, I/O pad, and input buffer may be included in a same die of the memory device. In some cases, a configuration of the capacitive component may be based on signaling received from a host device.

Abstract: A kind of plastic is provided. With a total of 100 parts by weight, the plastic includes the following components in parts by weight: 25 to 90 parts of matrix resin; 1 to 60 parts of laser reflecting agent; and 0 to 70 parts of inorganic filler, where the inorganic filler is capable of being chemically corroded. When the matrix resin includes a resin component capable of being chemically corroded, parts by weight of the inorganic filler are greater than or equal to 0 parts; or when the matrix resin is fully a resin component incapable of being chemically corroded, parts by weight of the inorganic filler are greater than 0 parts. For the plastic, a low roughness surface can be obtained through chemical roughening, to form a desirable coating binding surface, and help implement metallization.

Abstract: An apparatus has a memory storing a reinforcement learning policy with an optimization component and a data collection component. The apparatus has a regularization component which applies regularization selectively between the optimization component of the reinforcement learning policy and the data collection component of the reinforcement learning policy. A processor carries out a reinforcement learning process by: triggering execution of an agent according to the policy and with respect to a first task; observing values of variables comprising: an observation space of the agent, an action of the agent; and updating the policy using reinforcement learning according to the observed values and taking into account the regularization.

Abstract: A structure for holding a battery on an automated guided vehicle (AGV) so as to allow easy and convenient battery replacement includes two fixed supports and a bracket. The bracket is connected between the two supports and each support defines a vertical groove and two horizontal grooves. Two sliders at the ends of the bracket are insertable into either horizontal groove. The two sliders can move down along the vertical groove together until the bracket makes contact with the battery and holds it in place. The two sliders can move up along the vertical groove and sideways into the horizontal grooves, thereby unlatching and releasing the battery for rapid replacement. An AGV using the structure is also disclosed.

Abstract: A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.

Abstract: A service request allocation method is provided, performed by a computer device, the method including receiving a service request that needs to be processed; dividing a service device set into a plurality of service device subsets, the plurality of service device subsets being grouped based on an idle resource of each service device in the service device set; determining a target service device subset that matches the service request according to an allocation weight corresponding to each service device subset; selecting a target service device from the target service device subset; and allocating the service request to the target service device, the target service device being configured to perform a service corresponding to the allocated service request.

Abstract: An information processing apparatus includes: an information management unit that registers boarding information on users regarding boarding and biometrics information on the users acquired by a check-in procedure of the users in association with each other; and a comparison unit that compares target biometrics information, which is biometrics information acquired in a procedure up to the boarding for one of the users, with registered biometrics information, which is the biometrics information registered by the information management unit, and the comparison unit selects the registered biometrics information to be compared with the target biometrics information based on status regarding the procedure up to the boarding of the user corresponding to the registered biometrics information.

Abstract: Disclosed is a dual-drive wheel track changing system suitable for a research on track changing performance, including a four-hole connected track changing force measurement rocker arm (3) mounted on a central shaft seat (6). The four-hole connected track changing force measurement rocker arm (3) is connected a track changing driving actuator (5) and No. 1 and No. 2 dual-ring connected force measurement sensors (4-1, 4-2). Left and right lifting support track changing moving bodies (1, 2) are connected to the dual-ring connected force measurement sensors (4-1, 4-2). The system is simple in structure, and can verify track changing feasibility and stability of the wheel pairs by simulating track changing movement.

Abstract: Embodiments of this application provide a mobile terminal, relate to the field of sound on screen technologies. At least a part of a vibrator in the mobile terminal is disposed in an accommodation cavity. The vibrator includes a first magnet, a second magnet, a coil, and at least one third magnet. The first magnet, the coil, and the third magnet are all connected to a rear face of a display module. The first magnet is located in a closed region enclosed by a conducting wire of the coil. The third magnet is located on one side that is of the coil and that is away from the first magnet. The second magnet is connected to a middle frame, and a location of the second magnet and a location of the first magnet are disposed opposite each other.

Abstract: The present disclosure provides example electronic devices, auxiliary materials, and rear housing assemblies of an electronic device. One example electronic device includes a rear housing, a middle frame, a functional component, a speaker box, and an auxiliary material, where the rear housing covers the middle frame and forms a mounting cavity together with the middle frame. The functional component, the speaker box, and the auxiliary material are disposed in the mounting cavity. The functional component is adjacent to the speaker box. A rear acoustic cavity of the speaker box is connected to the mounting cavity. The auxiliary material is bonded between the rear housing and the functional component. The auxiliary material has a weak-adhesion surface and a strong-adhesion surface that are opposite to each other. The weak-adhesion surface is bonded to the functional component, and the strong-adhesion surface is bonded to the rear housing.

Abstract: A device for double-sided processing through single shot peening includes: a shot peening system, a workpiece clamping mechanism for clamping a workpiece, and a rebound system. The workpiece is provided with a first through-hole, and the first through-hole directly faces a nozzle. The rebound system includes a reflecting surface, an open container, and a reflecting surface gripping unit. The reflecting surface includes an upper reflecting surface, a middle reflecting surface, and a lower reflecting surface. The middle reflecting surface is provided with a second through-hole. The upper reflecting surface and the lower reflecting surface are both made of flexible elastic materials and are both provided with waterproof layers. A partition plate is disposed in the open container and partitions the open container into a first cavity and a second cavity. The second cavity is provided with a filling liquid, and the partition plate is slidable in the open container.

Abstract: This technology provides systems and methods for tracking facial movements and reconstructing facial expressions by learning skin deformation patterns and facial features. Frontal view images of a user making a variety of facial expressions are acquired to create a data training set for use in a machine-learning process. Head-mounted or neck-mounted wearable devices are equipped with one or more camera(s) or acoustic device(s) in communication with a data processing system. The cameras capture images of contours of the users face from either the cheekbone or the chin profile of the user. The acoustic devices transmit and receive signals to calculate a representation of the skin deformation. A data processing system uses the images, the profile of the contours, or skin deformation to track facial movement or to reconstruct facial expressions of the user based on the data training set.