Abstract: A system and a method for monitoring pressure inside a railway vehicle comprise a carriage pressure detection device, a control device, and an alarm device. The control device is configured to receive and process a pressure signal collected by the carriage pressure detection device, perform calculation on and analyze the collected data, and transmit an alarm signal to the alarm device as an alarm when a preset alarm condition is met. When a pressure protection device fails, pressure changes inside the vehicle are monitored in real time by the carriage pressure detection device functioning independently of the pressure protection device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a neural network using consistency measures. One of the methods includes processing a particular training example from a mediator training data set using a first neural network to generate a first output for a first machine learning task; processing the particular training example in the mediator training data set using each of one or more second neural networks, wherein each second neural network is configured to generate a second output for a respective second machine learning task; determining, for each second machine learning task, a consistency target output for the first machine learning task; determining, for each second machine learning task, an error between the first output and the consistency target output corresponding to the second machine learning task; and generating a parameter update for the first neural network from the determined errors.

Abstract: A connector for electrically connecting to a conductor comprises a pair of conductive terminals, each including a U-shaped fixing portion and an elastic contact arm extending from the U-shaped fixing portion. The connector further includes a pair of pressing members, each having a U-shaped holding portion and an elastic support arm extending from the U-shaped holding portion. Each of the pressing members is fit within the U-shaped fixing portion of the respective conductive terminal by the U-shaped holding portion, and at least a portion of the elastic support arm is abutted against the elastic contact arm.

Abstract: A reflective-type display screen and a control method thereof, and a display device are provided. The reflective-type display screen comprises, a display panel, a compensation light source, a detector module and a processor module. The display panel comprises a reflection surface, the display panel is configured to reflect light by the reflection surface to realize display; the compensation light source is in the display panel; the detector module is on a light-outputting side of the display panel and is configured to acquire an intensity of ambient light outside the display screen; and the processor module is respectively connected with the detector module and the compensation light source and is configured to control operation of the compensation light source based on the intensity of the ambient light acquired by the detector module.

Abstract: Embodiments of the present disclosure provide a method and a device for cross-domain strong logically isolation and secure access control in the Internet of Things (IoT). The method includes the following. When one IoT gateway receives the identity authentication request, the IoT gateway sends the identity authentication request to all IoT gateways in the domain excluding that IoT gateway. When all IoT gateways in the domain receive the identity authentication request, all IoT gateways verify separately whether the identity authentication request is legal. After a certain IoT gateway obtains the identity authentication result, a distributed consensus procedure is initiated. The IoT gateways in the domain reach a consensus on the identity authentication result through a distributed consensus mechanism, and the identity authentication result is written and stored to a block of a blockchain.

Abstract: The present invention discloses a networked control system (NCS) time-delay compensation method based on predictive control. The method comprises the following steps: (1) acquiring random time-delay data in an NCS, and preprocessing the data; (2) predicting the current time-delay by using a fuzzy neural network (FNN) optimized by a particle swarm optimization (PSO) algorithm; (3) compensating the predicted time-delay by using an implicit proportional-integral-based generalized predictive control (PIGPC) algorithm; (4) determining whether a preset work end time is up according to a clock in the NCS; if yes, ending the process; if no, returning to step (2). The method disclosed by the present invention can accurately predict and effectively compensate the NCS time-delay and has excellent development prospect.

Abstract: The present invention discloses an optimized design method for a temporary blocking agent to promote uniform expansion of fractures produced by fracturing in horizontal wells, which comprises the following steps: calculating a particle size and a volume range of a candidate temporary blocking agent in an applicable target area; establishing a hydraulic fracture expansion calculation model with complete fluid-solid coupling; calculating an optimal average particle size required for effective temporary blocking; determining the particle size distribution of the temporarily blocked particles according to the optimal average particle size; calculating the particle volume of the temporary blocking agent required for effective temporary blocking; and predicting and evaluating a fracturing effect after the preferred temporary blocking design is adopted in the target area.

Abstract: This disclosure discloses an array substrate, and a production method, a display panel, and a display apparatus thereof. Particularly, this disclosure proposes a method of producing an array substrate, having the following steps: providing a substrate having a drive transistor region and a switch transistor region thereon; forming an preset layer for active layer on a side of the substrate; patterning the preset layer for active layer to form a drive active layer and a switch active layer, wherein an orthographic projection of the drive active layer on the substrate is located in the drive transistor region, an orthographic projection of the switch active layer on the substrate is located in the switch transistor region, and a carrier concentration in the drive active layer is less than a carrier concentration in the switch active layer.

Abstract: Aspects of the invention provided a video processing method, a video playing method, devices thereof, and a storage medium. The video processing method is applied to a terminal device and can include that a video-frame tagging operation is detected during recording of a video. The video-frame tagging operation can tag a video frame in a recorded video at different times during recording of the video. The video frame can be tagged at different times during recording of the video according to the video-frame tagging operation. A final recorded video is generated based on the tagged video frame and an untagged video frame. The video frame is tagged through the detected video-frame tagging operation and the final recorded video is generated, so that a wonderful moment in the video can be rapidly located based on the tag of the video frame during video playback, and user experience may be improved.

Abstract: A sensor apparatus is provided for transmitting data of a polished rod in a rod pumping system, the rod pumping system including a rod rotator that rotates the polished rod. The sensor apparatus includes an outer shell configured to receive the polished rod, a signal processor within the outer shell, a position sensor within the outer shell and configured to sense and output to the signal processor a position signal, and a magnetic pickup sensor configured to sense and output to the signal processor a signal indicating a sensed magnetic field. The signal processor is configured to count a number of strokes of the polished rod based on the position signal, and to determine whether a fault exists based on the number of strokes and the signal indicating the sensed magnetic field.

Abstract: The present invention discloses rice serine hydroxymethyltransferase coded gene OsSHM4 mutants and application thereof. The rice serine hydroxymethyltransferase coded gene mutants are obtained in a manner that T at a 461st position of a CDS sequence region of a wild type rice OsSHM4 gene is mutated to C, so that coded amino acids thereof are mutated from leucine to proline. A CDS sequence of the wild type rice OsSHM4 gene is shown in SEQ ID NO. 1. After mutation of serine hydroxymethyltransferase coded genes OsSHM4, under a field experiment condition, S and Se content of rice shoots is remarkably improved without influencing biomass of rice. After wild type serine hydroxymethyltransferase coded genes OsSHM4 are genetically modified to complement the mutants, S and Se content of shoots of complemented strains is restored to that of wild type rice water planting.

Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens having a negative refractive power with a concave object-side surface and a concave image-side surface; a stop; a second lens having a refractive power; a third lens having a negative refractive power; a fourth lens having a refractive power with a convex object-side surface, and a convex image-side surface; and a fifth lens having a refractive power. Half of a maximal field-of-view Semi-FOV of the optical imaging system satisfies 45.0°?Semi-FOV<65.0°, and an effective focal length f2 of the second lens and a center thickness CT2 of the second lens along the optical axis satisfy 2.5?f2/CT2?3.0.

Abstract: Disclosed is a digital radio-frequency transmitter, which includes a digital logic mixer, a digital power amplifier and an antenna, wherein an output terminal of the digital logic mixer is connected with an input terminal of the digital power amplifier; an output terminal of the digital power amplifier is connected to the antenna; the digital logic mixer is configured to perform logic mixing on baseband data and a radio-frequency local oscillator clock signal which are input into the digital radio-frequency transmitter to generate radio-frequency data; the digital power amplifier is configured to convert the radio-frequency data into an analog power signal; and the antenna is configured to transmit the analog power signal out. According to the digital radio-frequency transmitter of the present application, the circuit layout area and the circuit operation consumption can be effectively reduced.

Abstract: The present disclosure provides a computer-implemented method for encoding video. The method includes: generating training data based on one or more video sequences, the training data including a structure similarity index comprising at least one of structure similarity index (SSIM) or multi-scale-structural similarity index (MS-SSIM); training a rate-distortion optimization (RDO) model using the training data; processing the one or more video sequences using the rate-distortion optimization model.

Abstract: Provided is a method for detecting stored data and device, a storage medium and an electronic device. The method includes: the first check information of first data stored in a memory in the current period is determined; the first check information is compared with second check information to obtain a check result, wherein the second check information is check information of second data stored in the memory in a period prior to the current period; and the correctness of storage of the second data is detected according to the check result.

Abstract: A device configured to administer a medication can comprise a lower housing that includes a housing latch. The device can further comprise a needle guard that is movable relative to the lower housing along a first direction from a first position to a second position so as to expose a needle, and an upper housing supported relative to the lower housing. The upper housing can be configured to move with respect to the lower housing along a second direction from a pre-use position to a dispensed position. The housing latch can releasably interfere with the upper housing when the upper housing is in the pre-use position so as to prevent the upper housing from moving toward the dispensed position, and the movement of the needle guard toward the second position, causes the interference to be removed, thereby allowing the upper housing to move toward the second position.

Abstract: A bandwidth control method, apparatus, and a device, in the field of computer technologies includes determining an upper bandwidth limit of the device when providing a service for registered clients, resetting an upper bandwidth limit of each client based on a working status of each client and the upper bandwidth limit of the device, and reallocating a bandwidth to each client based on the upper bandwidth limit of each client.

Abstract: Described herein are systems, methods, and software to enhance firewall implementation for virtual machines. In one implementation, a method of managing firewall rules for a virtual machine includes identifying, in the virtual machine, an attach process for one or more applications to the virtual machine. The method further includes, identifying one or more firewall rules that correspond to the one or more applications and providing the one or more firewall rules to networking manager for the virtual machine.

Abstract: A domain alignment technique for cross-domain object detection tasks is introduced. During a preliminary pretraining phase, an object detection model is pretrained to detect objects in images associated with a source domain using a source dataset of images associated with the source domain. After completing the pretraining phase, a domain adaptation phase is performed using the source dataset and a target dataset to adapt the pretrained object detection model to detect objects in images associated with the target domain. The domain adaptation phase may involve the use of various domain alignment modules that, for example, perform multi-scale pixel/path alignment based on input feature maps or perform instance-level alignment based on input region proposals.