Abstract: An organic electroluminescent device, including at least one functional light-emitting layer. In a first target current density interval not greater than 0.01 mA/cm2, an electron mobility VE and a hole mobility VH of the functional light-emitting layer satisfy the requirements of |VE?VH|>1×10?8 cm2/Vs. The organic electroluminescent device has a relatively low luminous efficiency under a low gray scale, thereby exhibiting relatively excellent display quality. Also disclosed is a display apparatus.

Abstract: The present disclosure provides a method and system for performing privacy-preserving human motion data management. In one aspect, a human-motion-data-managing system first receives, at a local vision sensor, a sequence of raw video images. Next, for each video image in the raw video images, the local vision sensor detects a first person in the video image and subsequently extracts a privacy-preserving human representation of the detected first person from the video image, wherein the privacy-preserving human representation does not include personal identifiable information (PII). Next, the local vision sensor combines a sequence of the extracted privacy-preserving human representations of the detected first person from the raw video images to form a motion sequence of the detected first person. The local vision sensor subsequently transmits the motion sequence to a cloud server in place of raw images of the detected first person, whereby preserving the privacy of the detected first person.

Abstract: A method for dynamic pairing between asset tracking devices, such as a chassis module and a chassis sensor module mounted on a chassis and a container module mounted on a container. The method includes detecting presence of the container using the chassis sensor module and in response, broadcasting a short-range polling signal; establishing a wireless connection with the container module in response to the short-range polling signal; obtaining GNSS data; determining an estimated distance between the chassis module and the container module; and transmitting the GNSS data and the estimated distance to a remote server.

Abstract: A system and method for switching the operating mode of a controller based on the detection of a magnetic field, and in response to having detected a change in the presence of the magnetic field, sending a message to the remote server.

Abstract: A communication method and apparatus improve accuracy of correcting a frequency offset. Configuration information received from a network device provides for configuring one or more uplink reference signal resources each including a first time unit and a second time unit. The first time unit includes a first antenna port. The second time unit includes a second antenna port. An uplink reference signal is sent to the network device based on the configuration information.

Abstract: Encapsulating components and millimeter-wave waveguides coupled to a circuit board to satisfy intrinsically safe requirements and methods therefor. The top side of the circuit board is divided into a plurality of zones using a plurality of fences formed by the housing of the apparatus. The plurality of zones, and the components and millimeter-wave waveguide therein, are filled with potting material.

Abstract: A system for managing vehicle charging adapted for a charging gun includes a communication bus, a battery, a sensor, an OBC, and a domain controller. The domain controller receives a first voltage and a second voltage that correspond to a current of charge to the battery from the sensor, and when determining that both the battery and the OBC are operating normally based on information received through the communication bus, notifies the OBC through the communication bus to start charging the battery with electricity received from the charging gun. When determining that an amount of charged power calculated using a calibrated voltage, which is obtained based on the first voltage or the second voltage, has reached a predetermined amount, the domain controller sends a stop message to the communication bus so as to notify the OBC to stop charging the battery.

Abstract: The present disclosure provides a method and system for efficiently and securely managing human motion data. In one aspect, a human-motion-data-managing system first receives a sequence of video images including a first person. Next, for each image in the sequence of video images, the human-motion-data-managing system detects the first person in the video image; and subsequently extracts a skeleton figure of the detected first person from the image, wherein the skeleton figure is composed of a set of human keypoints. Next, human-motion-data-managing system combines a sequence of extracted skeleton figures of the detected first person from the sequence of video images to form a skeleton sequence of the detected first person which depicts a continuous motion of the first person. The human-motion-data-managing system subsequently transmits the skeleton sequence to a server in place of the actual images of the first person to preserve the privacy of the first person.

Abstract: Disclosed are a display panel and a display device. The display panel includes a substrate, and an isolation structure, a display function layer, a first encapsulation layer, and at least one optical function layer located on the substrate. The isolation structure is located on the substrate and has a first end portion and a second end portion, the second end portion is located on a side, away from the substrate, of the first end portion, and the isolation structure defines a plurality of first openings. The display function layer is located on the substrate and includes a plurality of light-emitting devices correspondingly located in the plurality of first openings, and the light-emitting device includes a first electrode, a light-emitting function layer, and a second electrode stacked on the substrate, and each of the plurality of first openings limits one of the plurality of light-emitting devices.

Abstract: The present disclosure relates to Lactiplantibacillus plantarum EL6 for increasing the flavonoids content, and a use thereof, and belongs to the technical field of microbial feeds. The present disclosure is intended to solve the problem that there is no special lactobacillus agent for increasing the flavonoids content during silage fermentation in the prior art. The Lactiplantibacillus plantarum EL6 in the present disclosure is a Gram-positive bacterium, which allows glucose facultative fermentation and has advantages such as acid resistance and high growth rate. In addition, the Lactiplantibacillus plantarum EL6 has an ability to allow the biotransformation of flavonoids, and can significantly increase a content of flavonoids in Medicago silage and promote the release and transformation of bound flavonoids. The Lactiplantibacillus plantarum EL6 can improve a fermentation quality of silage, and has advantages such as low cost, safety, reliability, and easy utilization.

Abstract: Disclosed techniques and solutions can provide improved snapshot replication. Typically, an initial replica obtained using snapshot replication is periodically updated. However, the update process can unnecessarily consume computing resources if data in a source data object has not changed with respect to data in a replica data object. Disclosed techniques check to determine whether a snapshot replica is out of date before obtaining a new snapshot. The checks can be performed on manual request or on the occurrence of triggers, such as receiving a query that accesses the replica data object or according to a schedule. Information for current and prior versions of the remote data object can be compared to determine whether a replica is out of date, such as digest values of contents of the remote data object or timestamps associated with the remote data object.

Abstract: A display panel, a display module and a display device. The display panel includes: a substrate in a stacked arrangement, a light-emitting device layer, a light extraction layer assembly, and a barrier layer; wherein the light extraction layer assembly includes at least two light extraction layers in a stacked arrangement, the at least two light extraction layers including a primary extraction layer and at least one secondary extraction layer disposed on one side of the primary extraction layer or on two opposite sides of the primary extraction layer, and the primary extraction layer has a refractive index greater than that of the secondary extraction layer; and the secondary extraction layer has a refractive index greater than that of the barrier layer.

Abstract: The present disclosure provides a greenhouse gas emission reduction method for a heavy metal contaminated soil, falling within the technical field of emission reduction of greenhouse gas nitrous oxide. Specifically, hydroxyapatite (HAP) is added to a soil to effectively reduce the emission of nitrous oxide in the soil, and at the same time, the treatment of heavy metal contamination is realized, which is very suitable for the promotion and use of nitrous oxide emission reduction in the contaminated soil.

Abstract: A display panel, a display module and a display device. The display panel comprises a substrate, a light emitting device layer disposed on one side of the substrate, a light extraction layer assembly disposed on the side of the light emitting device layer facing away from the substrate and an encapsulation structure wherein the light extraction layer assembly comprises at least two light extraction layers arranged in a stacked configuration, and the at least two light extraction layers comprise a primary extraction layer and at least one secondary extraction layer disposed on one side or two opposite sides of the primary extraction layer, and a refractive index n5 of the primary extraction layer is greater than a refractive index of the secondary extraction layer.

Abstract: The disclosure discloses a method, an apparatus, a device, and a storage medium for interaction. The method of interaction includes: in response to detecting that a first user enters a virtual room, displaying a shooting task list in the virtual room; the shooting task list containing a plurality of shooting tasks, and each shooting task carries task information; obtaining, for the shooting task, an image taken by the first user based on the task information carried by the shooting task; performing a feature extraction on the image to obtain feature information; and comparing the feature information with the task information, and determining that the shooting task is completed if the feature information matches the task information.

Abstract: A flexible circuit board component includes a board body and a sampling terminal, wherein the sampling terminal is configured to collect the electrical data of the target component. The board body is provided thereon with a groove portion, wherein the groove portion penetrates the board body along a thickness direction of the board body so as to partition the board body into a main body part, a connecting part, and a deformable part. The connecting part is configured to connect the sampling terminal. The deformable part is connected to the main body part and the connecting part, and the deformable part is configured to undergo deformation so as to allow the connecting part to displace relative to the main body part.

Abstract: Mechanisms are provided for processing a sequential database natural language query. A process model is preprocessed to generate mapping data structure(s). The mapping data structure(s) map elements of the sequential process to other elements of the sequential process to thereby identify sequential and dependent characteristics of the sequential process. A sequential database natural language (SDNL) query interpretation engine is configured with the mapping data structure(s) and natural language processing is performed on a query to generate extracted features. The configured SDNL query interpretation engine operates on the extracted features and the mapping data structure(s) to generate intent information for the query. Executable database queries are generated based on the intent and executed on a database to return a response to the query.

Abstract: Devices and methods for detecting and reporting a battery tamper event with regard to an intrinsically-safe or explosion-proof device while the device is located in a hazardous environment. The device may include a location sensor for determining that the device is in a hazardous location. While in the hazardous location, the device may detect an open enclosure event using a sensor and, if so, it may monitor for detection of a battery tampering event. The battery tampering event may include battery replacement or battery charging. The battery tamper event may be reported to a remote server over a wireless channel when it occurs.

Abstract: Methods and systems are described for providing hierarchical demand forecasting for state space reduction. Using a hierarchical architecture, a base model may be trained to capture a range of shared structure in a first data set that can be used to draw inferences on using smaller sets of data representative of the “whole picture.” For example, training data may be sampled and prepared and used to train a base model in a first stage. In a next stage, one or more downstream models may be trained on the structure and samples of uncensored demand generated by the base model to produce forecasts for items and locations, including items and locations for which there may be little or no historical data. The downstream models that would otherwise require a large amount of data for training can be generated on demand using less training data, training time, computing processing, and memory.