Abstract: The invention belongs to the field of chemical separation, hydrometallurgy and resource recovery and provides a method for preparing and applying of ion-keeper adsorbent. By adjusting the pH to selective oxidation to achieve the oxidation of ferrous iron into ferric iron. Separates the iron after the hydrothermal reaction; By using of ion imprint “ion keeper” effect and biomass as raw materials, to prepare the adsorbent with internal rules, hierarchical pores and high selectivity. It can be used for deep purification of chromium solution, such as iron, aluminum, vanadium and other impurities in the solution; After the deep purification of chromium solution, then adjusting the pH, adding appropriate hydrating agent, by hydrothermal precipitation treatment of chrome, filtration, acid washing and calcination to obtain chromium oxide crystal. It achieves the purification of chromium, iron, aluminum and chromium. The recycling and comprehensive utilization of waste resources are also realized.

Abstract: The present disclosure provides a linear calibration system for a time-to-digital converter and a method thereof, and a digital phase-locked loop. The linear calibration system includes a digitally controlled reference delay circuit for receiving a first clock signal and delaying the first clock signal to generate a reference clock signal, a time-to-digital conversion circuit including at least two time-to-digital converters, and a state machine. The time-to-digital conversion circuit receives the first clock signal and the reference clock signal, delays the first clock signal to generate a first delay signal, compares a phase of the first delay signal with a phase of the reference clock signal, and outputs a phase detection result signal. The state machine generates a delay control signal for controlling the digitally controlled reference delay circuit, adjusts a calibration control signal to align the phases of the first delay signal and the reference clock signal.

Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a retroreflective layer disposed on a light-emitting side, wherein the retroreflective layer includes a retroreflective region and a transmissive region, the retroreflective region is configured to reflect light irradiated on the retroreflective region along an opposite direction of an incident direction or close to the opposite direction of the incident direction; the display panel comprises a pixel region and a pixel define region for defining the pixel region, and the pixel region is at least partially overlapped with the transmissive region along a thickness direction of the display panel.

Abstract: An optical module having an externally-mounted magnetic ring and a chip positioning angle and a pressing block structure thereof are disclosed. The pressing block structure includes a pressing block. The pressing block includes a pressing block body. The pressing block body is provided with an insertion core positioning hole, a chip accommodating hole, and a magnetic ring accommodating chamber. The chip accommodating hole is provided with at least one positioning angle. The overall assembly accuracy of the optical module is improved, the material cost of the isolator chip is reduced, the positioning of the chip is more accurate, and the occurrence of glue overflow can be avoided.

Abstract: Various aspects relate to adjusting communication timing in response to a switch from one feeder link to another feeder link in a non-terrestrial network. For example, when a satellite moves out of the coverage area of a first ground network entity (or if the first ground network entity is turned off), the satellite switches to a second ground network entity. The resulting switch from a first feeder link for the first ground network entity to a second feeder link for the second ground network entity may cause a timing glitch that adversely affects the UEs under the coverage of the satellite. The disclosure relates in some aspects to sending an indication of the switch and/or a common timing adjust command to all of the UEs affected by the feeder link switch.

Abstract: A method for determination and isolation for abnormal sub-sensors in a multi-core sensor. It can be intelligently determined whether the reason for an abrupt dramatic change in sensor data is a sensor fault or sudden pollution, so as to increase data reliability. A data online rate is increased if a repair can be performed via automatic determination when a device fault occurs, which has significant value for continuous monitoring required for a haze treatment operation. In addition, human and material resources for device maintenance may be saved, thereby reducing waste.

Abstract: A multi-core sensor system is provided. The multi-core sensor system can intelligently determine whether the reason for an abrupt dramatic change in sensor data is a sub-sensor fault or sudden pollution, so as to increase reliability of detected data of the sub-sensor. The multi-core sensor system can automatically determine whether the repair is needed when a device fault occurs, so as to ensure the continuity of sub-sensor detected data, which has significant value for continuous monitoring required for a haze treatment operation. In addition, human and material resources for device maintenance may be saved, thereby reducing waste.

Abstract: A touch substrate and a method for manufacturing the same, a display panel and a display device. The touch substrate includes a first substrate, and a black matrix and a touch electrode layer on the first substrate. The black matrix defines an effective display area. An orthographic projection of the effective display area on the first substrate coincides with an orthographic projection of the touch electrode layer on the first substrate.

Abstract: A network slice management method, and a management unit and a system that are based on the method are provided. The method includes: determining, by a first management unit, subnet requirement information based on network slice requirement information, where a network slice includes at least one subnet; sending, by the first management unit, a first negotiation request to a second management unit, where the first negotiation request carries the subnet requirement information, and the first negotiation request is used to query for a support status of the second management unit for the subnet requirement information; and determining, by the second management unit, that the second management unit can support the subnet requirement information, or determining, by the second management unit, that the second management unit cannot support the subnet requirement information.

Abstract: The embodiments of the present application provide a method and an apparatus for releasing a video file, which are applied to a server. The method comprises obtaining a video file to be released; selecting a first preset number of video frames in the video file to be released; generating a target video file from the selected video frames, determining a target display position in a video preview interface for the target video file; and saving a correspondence between the target display position and the target video file such that a first terminal logging in the server can play the target video file at the target display position in the video preview interface based on the correspondence. As can be seen, since the first terminal plays the target video file at the target display position in the video preview interface, the user can get more information about contents of the video file to be released from the target video file, which improves user experience.

Abstract: The disclosure provides an airway anomaly detection method and a ventilation device thereof. The method may include acquiring a ventilation parameter, where the ventilation parameter includes at least one of an airway pressure and airway flow; detecting, according to a change of the ventilation parameter, whether an airway anomaly event occurs; and when it is determined that the airway anomaly event occurs, outputting an airway anomaly event prompt.

Abstract: Provided in the present application are a one-time dynamic positioning authentication method, system and password changing method. The method comprises: an authentication server receives an authentication request from a client, generates a positioning factor string, and transmits generated information containing the positioning factor string and a structure of an all-element dynamic factor table to the client; the client receives the generated information, generates the all-element dynamic factor table, and maps the positioning factor string into the all-element dynamic factor table to acquire a dynamic graphical password inputted in accordance with a first positioning rule by a user and transmit to the authentication server; the authentication server receives the dynamic graphical password from the client, and if the first positioning rule corresponding to the parsed dynamic graphical password is consistent with a preset positioning rule, then the authentication is successful.

Abstract: Provided are modulation and coding method and apparatus, channel quality indicator (CQI) reporting method and apparatus, a device and a storage medium. In an MCS table set, an MCS table supporting a minimum spectral efficiency less than 120/1024*2 is added, and a selecting rule of an MCS table is provided. Therefore, compared with an MCS table set in the related protocols, communications requirements of higher reliability, higher coverage and lower transmission rate can be satisfied. Moreover, further provided are CQI reporting method and apparatus, a device and a storage medium to accurately satisfy current communications requirements, especially the communications requirements of higher reliability, higher coverage and lower transmission rate.

Abstract: A method of wireless communication includes receiving, at a first communication node, information that includes one or more parameters indicating a time-domain characteristic of one or more interfered symbols due to a remote interference between the first communication node and a second communication node. The method also includes performing, by the first communication node, subsequent communications based on the information.

Abstract: Systems and methods for customer journey optimization in email marketing are described. The systems and methods may identify a plurality of messages for a first time period, wherein the plurality of messages are categorized according to a plurality of messages types, identify user information for a customer, wherein the user information includes user interaction data, determine a message type from the plurality of message types for the first time period based on the user information, wherein the message type is determined using a decision making model comprising a deep Q-learning neural network, select a message from the plurality of messages based on the determined message type, and transmit the message to the customer during the first time period based on the selection.

Abstract: Disclosed are an overload protection apparatus and method, and a storage medium, a compressor and an electric appliance. The apparatus includes: a first overload protection mechanism and a second overload protection mechanism, wherein the first overload protection mechanism is arranged to perform overload protection on the pressure of a compressor to be protected, and/or the second overload protection mechanism is arranged to perform overload protection on at least one of the temperature and the current of the compressor to be protected.

Abstract: Methods and apparatus to determine a position of a rotatable shaft of a motor are disclosed. An example apparatus to determine a position of a rotatable shaft of a motor includes a sensor printed circuit board (PCB) structured to be mounted to a motor, the sensor PCB including a plurality of capacitive sensors, the plurality of capacitive sensors having respective ones of a plurality of capacitances that independently change as a conductor moves relative to the sensor PCB in conjunction with a rotatable shaft of the motor during an operation of the motor, and a controller electrically coupled to the sensor PCB, the controller configured to determine a position of the rotatable shaft based on the plurality of capacitances.

Abstract: Methods, systems, and devices related to wireless communication are described. A method of wireless communication includes determining respective starting points of data, in accordance with Polar encoding, that are associated with each Redundancy Version (RV) of a plurality of RVs and selecting data for transmission in accordance with at least one of the plurality of RVs.

Abstract: Systems and methods for providing customized skin care product recommendations. The system utilizes an image capture device and a computing device coupled to the image capture device. The computing device causes the system to analyze a captured image of a user via the by processing the image through a convolutional neural network to determine a skin age of the user. Determining the skin age may include identifying at least one pixel that is indicative of the skin age and utilizing the at least one pixel to create a heat map that identifies a region of the image that contributes to the skin age. The system may be used to determine a target skin age of the user, determine a skin care product for achieving the target skin age, and provide an option for the user to purchase the product.

Abstract: Provided herein are crystalline forms of (R)-5-carbamoylpyridin-3-yl-2-methyl-4-(3-(trifluoromethoxy)benzyl)piperazine-1-carboxylate. Pharmaceutical compositions comprising crystalline forms of (R)-5-carbamoylpyridin-3-yl-2-methyl-4-(3-(trifluoromethoxy)benzyl)piperazine-1-carboxylate are also disclosed.