Abstract: A screwdriver includes a shank, a ratchet assembly, and a handle. The shank includes a shank extender that in an extended position lengthens the shank and in a retracted position is stored within the handle of the screwdriver. The ratchet assembly includes a knob and is configured to drive in the same direction the knob is turned. The screwdriver includes a locking mechanism to prevent unwanted movement of the shank between the extended and retracted positions. The handle of the screwdriver includes a storage space to hold alternative screwdriver bits and a stabilizing component to decrease movement of the handle when the storage portion is in an extended or open position. In a closed position the handle surrounds the alternate bits and in an open position the alternate bits are exposed.

Abstract: An information processing apparatus includes: an information management unit that registers boarding information on a user regarding boarding acquired by a check-in procedure of the user; and a deadline setting unit that, based on the boarding information, sets a deadline for a procedure of the user up to the boarding.

Abstract: The invention discloses a data processing system, which includes a master device, a slave device and a meta-precision translation unit. The slave device is connected to the master device through a bus and performs two-way transmission of data with the master device. The meta-precision translation unit is disposed on the bus and located between the master device and the slave device and used to selectively perform format conversion on the data according to a bus command.

Abstract: The present invention relates to a self-adhesive waterproof coiled material of a super-strong cross laminated film, comprising sequentially from top to bottom: an isolation protection layer, a non-asphalt-based self-adhesive layer, a strong cross laminated film, an asphalt self-adhesive layer and a PE isolation film. One side of the upper surface of the coiled material is provided with an overlap edge, and the other side of the lower surface of the coiled material is also provided with an overlap edge. The waterproof coiled material provided in the present invention has better adhesive property with post-cast concrete than an asphalt-based coiled material, and can be better bonded to a main body structure (i.e.

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: The application discloses a device and method for preparing aromatic hydrocarbons from naphtha, and the device comprises a fluidized bed reactor and a riser reactor; the fluidized bed reactor is used for introducing a naphtha raw material to make contact with a catalyst from the riser reactor and react to generate a BTX-containing product gas stream and a spent catalyst, the product gas stream is subjected to gas-solid separation, the product gas stream after separation is sent to a downstream working section, and unconverted naphtha after separation returns to the fluidized bed reactor as a raw material; and a part of low-carbon alkanes after separation return to the riser reactor as raw materials and are further converted into aromatic hydrocarbons and other components.

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: A signal processing device includes a circuit system, in which the circuit system includes an amplifier, a temperature compensating circuit and a computing circuit. The amplifier is configured to amplify an input signal according to a temperature compensating current, in order to generate an output signal. A direct current offset of the output signal is related to the temperature compensating current. The temperature compensating circuit includes a detecting resistor and a comparator. The detecting resistor is configured to generate a detecting voltage according to the temperature compensating current. The comparator is configured to compare the detecting voltage with a reference voltage to generate a comparison signal. The computing circuit is configured to adjust the temperature compensating current according to the comparison signal so as to make the detecting voltage approximate to the reference voltage.

Abstract: A combined hyperparameter and proxy model tuning method is described. The method involves multiple search iterations. In each search iteration, candidate hyperparameters are considered. An initial (‘seed’) hyperparameter is determined, and used to train one or more first proxy models on a target dataset. From the first proxy model(s), one or more first synthetic datasets are sampled. A first evaluation model is fitted to each first synthetic dataset, for each candidate hyperparameter, enabling each candidate hyperparameter to be scored.

Abstract: This application relates to the field of artificial intelligence technologies, and provide a knuckle operation identification method and an electronic device. According to this application, when a knuckle performs an operation on different touch regions of a touch panel, an acceleration signal may have different change trends. A touch feature is extracted from a touch signal for determining a contact area and a contact location, and an acceleration feature is extracted from the acceleration signal for determining a magnitude of a touch on a screen. A capacitor binary classification model is used at the front, to extract a confidence score indicating a correlation to a knuckle from a capacitor signal. Then, feature fusion is performed on the acceleration feature, the confidence score, and the touch feature, and a fused feature is input into a knuckle classification model, to obtain a better classification effect.

Abstract: The present disclosure provides pixel units and manufacturing methods thereof. An example pixel unit includes a substrate, a nano antenna and a first electrode connected to the nano antenna that are formed on the substrate, a light-emitting layer formed on the nano antenna and the first electrode, and a second electrode formed on the light-emitting layer.

Abstract: The multi-turn dialogue system based on retrieval includes the following modules: a representation module, a matching module, an aggregation module and a prediction module; the multi-turn dialogue method based on retrieval includes the following steps: (1) by a representation module, converting each turn of dialogue into a cascade vector of the dialogue, and converting a candidate answer into a cascade vector of the candidate answer; (2) by a matching module, dynamically absorbing context information based on a global attention mechanism, and calculating a matching vector; (3) by aggregation module, obtaining a short-term dependence information sequence and a long-term dependence information sequence; (4) by a prediction module, calculating the matching score of the context and candidate answer involved in the matching; (5) selecting a candidate answer with the highest matching score as a correct answer.

Abstract: A giant cavity surface-emitting laser includes a giant cavity, a lower Bragg reflector, and an upper Bragg reflector. The giant cavity includes a multi-junction active region containing at least two active layers, and the giant cavity includes at least one of: an anti-reflection light reservoir located between the multi-junction active region and the lower Bragg reflector or an anti-reflection light reservoir located between the multi-junction active region and the upper Bragg reflector, where the anti-reflection light reservoir is configured to increase an optical field intensity peak of the anti-reflection light reservoir to a value higher than an optical field intensity peak of the multi-junction active region and store optical field energy, and a current confinement layer defining a light-emitting region is disposed within the multi-junction active region or near the outer side of the multi-junction active region.

Abstract: An electric adjustable bed is provided. The electric adjustable bed includes a bed frame body, a cantilever assembly, and a linear actuator, where the bed frame body includes a bed framework and a movable bed frame that is rotatable relative to the bed framework; the cantilever assembly is located below the bed frame body and connected to the bed frame body; the cantilever assembly is provided with a mounting point, and includes a first pull rod and a second pull rod; the first pull rod, the second pull rod, and the bed framework form a triangular support structure; the linear actuator includes an actuator body and a driving end; and the driving end and the actuator body are rotatably connected to the movable bed frame and the mounting point.

Abstract: A fluidized bed reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.

Abstract: A low-dropout regulator for low voltage applications includes a buffer circuit being arranged between an output terminal of an error amplifier and a control node of a pass device. The buffer circuit includes a driver having a first transistor being embodied as an NMOS transistor. The output terminal of the error amplifier is coupled to the control node of the first transistor. The control node of the pass device is coupled to an internal node of a first current path including the first transistor. The low-dropout regulator has high load capability, even if an input supply voltage is very low.

Abstract: A distal end assembly of a medical device comprising a clevis; a bushing at a proximal end of the clevis; an end effector pivotally connected to a distal end of the clevis; a distal actuator connected to the end effector; and a shaft connector. Translation of the distal actuator actuates the end effector. The bushing is within the shaft connector and rotatable relative to the shaft connector.

Abstract: A tungsten-base alloy material and a preparation method therefor. The preparation method comprises: 1) evenly grinding composite powder containing tungsten and zirconium oxide, and then performing annealing treatment at 700-1000° C. to obtain powder A; and 2) grinding and then compression moulding the powder A, and then performing liquid-phase sintering to obtain a tungsten-base alloy blank so as to obtain the tungsten-base alloy material.