Abstract: A memory management method, a memory storage device and a memory control circuit unit are disclosed. The method includes: detecting a status of a rewritable non-volatile memory module; and determining whether to perform a data refresh operation on the rewritable non-volatile memory module according to a first condition and a second condition. The first condition is related to a first physical unit in the rewritable non-volatile memory module. The second condition is related to a plurality of second physical units in the rewritable non-volatile memory module. The data refresh operation is configured to update data in the rewritable non-volatile memory module to reduce a bit error rate of the data.

Abstract: This application provides an encoding method and an encoding apparatus based on a polar code, to improve compression performance of a source sequence of a limited length. The method includes: obtaining a source bit sequence; encoding the source bit sequence by using a polar code generation matrix that is based on sub-block column transformation, to obtain a first bit sequence, where the polar code generation matrix is determined based on a first polar code generation matrix and a transformation matrix, and the transformation matrix may achieve effect of performing sub-block column transformation on the first polar code generation matrix; and compressing the first bit sequence, to obtain a compressed bit sequence.

Abstract: A floating tunnel shore connecting system, a floating tunnel and a floating tunnel construction method are disclosed, where the design method of the floating tunnel is to apply axial tension along one end or two ends of a tube body respectively; The floating tunnel shore connecting system comprises a joint section located at the end of the tube body, which can move along the axial direction and is connected with a tension device for applying axial tension; The floating tunnel comprises a tube body and a hollow cavity, wherein the tube body comprises a floating section and a shore connecting system at two ends, and both joint sections are provided with tension devices.

Abstract: A wearable physiological measurement apparatus comprises a base, a bridge member, and a first and second support members movably coupled to the base and the bridge member to surround size-variable an opening for accommodating a care giver's finger therein. A measurement device is coupled to the base and with a probe projecting toward the opening for contacting the finger for vital sign measurement and monitoring. Resilient members are coupled between the base, the bridge member and the first and second support members to bias the base, the bridge member and the first and second support members moving toward each other to grip the finger to maintain proper contact of the probe to the finger.

Abstract: Provided are a trust management system and method, including a settlor module, a trustee module, a beneficiary module and a trust digital management module and effective in introducing automated and intelligent processing processes. The trust digital management module includes a trust-related question bank. The settlor control interface presents a plurality of questions of the trust-related question bank. The settlor module provides the trust digital management module with answers given by the client to the questions to allow the trust digital management module to create a digital trust agreement according to the answers. The settlor tracking module sends a message notification to the client according to application progress to reduce the need for human interventions, enhance trust application efficiency, and enable information to be real-time.

Abstract: The method includes: obtaining an input information bit sequence; determining a target matrix based on a first polar code generation matrix and a transformation matrix; encoding the input information bit sequence based on an inverse matrix of a first matrix, to obtain a first bit sequence, where the input information bit sequence is a bit sequence corresponding to an information bit, and the first matrix is a submatrix formed by a row, in the target matrix, corresponding to the information bit and a column, in the target matrix, corresponding to the information bit; and encoding the first bit sequence based on a second matrix, to obtain a second bit sequence, where the second matrix is a submatrix formed by the row, in the target matrix, corresponding to the information bit and a column, in the target matrix, corresponding to a frozen bit.

Abstract: Example implementations described herein are directed to systems and methods for generation and deployment of automated and autonomous self-learning machine learning models, which can include generating a predictive model and a prescriptive model through an offline learning process at a first system; controlling operations of a second system through deploying the predictive model and the prescriptive model to the second system; and autonomously updating the predictive model and the prescriptive model from feedback from the second system through an online learning process while the prescriptive model and the predictive model are deployed on the second system.

Abstract: Embodiments of the disclosure provide modeling methods and systems for carbon emissions in leather manufacturing processes. In some examples, firstly, various carbon emission sources are determined in the leather manufacturing process, including four types: an energy type emission source (E), a production process type emission source (P), a transportation process type emission source (T), and a waste type emission source (W). Masses and carbon emission factors of the four types of emission sources in the sections are obtained. Carbon emission accounting models for different sections are constructed based on the masses and the carbon emission factors of the carbon emission sources in the sections. On this basis, the modeling system for carbon emission in a leather manufacturing process is constructed with a parameter acquisition module, a model construction module, and a model assessment module.

Abstract: A catalytic cracking additive, its preparation and application thereof are provided. The catalytic cracking additive contains 10-50 wt % of a modified ? zeolite, 20-85 wt % of a clay and 5-35 wt % of a boron-containing binder, based on the total weight of the catalytic cracking additive. The modified ? zeolite comprises 0.1-1 wt % of CuO and 1-15 wt % of P2O5, and has a micro-activity index of at least 58; the boron-containing binder comprises 70-97 wt % of Al2O3 and 3-30 wt % of B2O3, and has a pH value of 1.0-3.5. The catalytic cracking additive can significantly improve the yield of C4 olefins and the concentration of C4 olefins in liquefied gas.

Abstract: In the field of communication technologies, a communication method for a wireless fidelity (Wi-Fi) system and an apparatus provide improved performance of demodulating a Wi-Fi frame by the apparatus. The communication method for the wireless fidelity (Wi-Fi) system includes: generating a Wi-Fi frame including a first preamble field, where the first preamble field indicates a modulation and coding scheme MCS of at least one symbol in a data field in the Wi-Fi frame, an MCS order of first m symbols in the at least one symbol is less than an MCS order of another symbol, and m is a positive integer greater than or equal to 1; and transmitting the Wi-Fi frame.

Abstract: A method of wireless communication is described. The method includes obtaining, by a user device, a parameter set used to determine a feedback timing, the parameter set including N elements; and modifying the parameter set to include M elements, M being greater than N, based on a time domain resource assignment table that includes information on multiple physical downlink shared channel receptions, whereby N and M are positive integers.

Abstract: Disclosed is a preparation method of a plant biomass-based active tanning agent. Under a low-temperature reaction condition, cyanuric chloride and a plant biomass compound are used to synthesize an environment-friendly plant biomass-based active tanning agent through a nucleophilic substitution reaction. The active tanning agent obtained in the present disclosure appears as a white or light brown emulsion at room temperature, and has substantial active groups such as hydroxyl groups, carboxyl groups and ester groups introduced into its structure, thus endowing leathers with desirable hydrothermal stability and physical properties and having a desirable synergistic effect with metal tanning agents. Meanwhile, health and environment risks caused by hexavalent chromium and free formaldehyde in leathers are avoided.

Abstract: A light detecting device includes a substrate that has a lattice constant. A buffer layer is disposed on the substrate. A gradient layer is formed on the buffer layer opposite to the substrate, and includes a plurality of sublayers that have respectively lattice constants each of which is greater than the lattice constant of the substrate. The sublayers are arranged in a manner that the lattice constants of the sublayers undergo a gradual increase in lattice constant in a direction away from the substrate. A barrier layer is formed on the gradient layer opposite to the buffer layer, and has a lattice constant which is greater than that of the substrate and no smaller than the lattice constants of the sublayers. An absorption layer is formed on the barrier layer opposite to the gradient layer.

Abstract: The disclosure discloses a method for preparing cuprous chloride by high-value utilization of chloride ion-containing wastewater, belonging to the field of wastewater treatment. According to the disclosure, wastewater containing chloride ions is taken, and the pH is maintained at 2 to 3.5. Cuprous oxide is added by 50 to 80% of a theoretical amount of the cuprous oxide according to a Cl? concentration for reaction 8 to 15 min. Centrifugation is performed to obtain crude cuprous chloride and supernatant. Cuprous oxide is added to the resulting supernatant for reaction 8 to 15 min, and a total of cuprous oxide added in two reactions accounts for 90 to 100% of the theoretical amount. Centrifugation is performed after the reaction to obtain crude cuprous chloride. According to the method of the disclosure, the amount of cuprous oxide used is greatly reduced, and the purity of the cuprous chloride is improved.

Abstract: DCS analyzer including a memory to store autocorrelation values, model parameters, fitting parameters, and simulated correlation values from a DCS model; a mean square error (MSE) module to compute MSE between theoretical autocorrelation values computed from the model parameters and measured autocorrelation values; a sorting module to sort three latest MSE values obtained from the MSE module and generate indexes of largest, medium, and smallest MSE values; a convergence checking module to determine whether convergence is reached in solving an autocorrelation equation; a search module to calculate ?DB and ? values at reflection, extension, contraction, and shrink locations; a comparison module to compare two latest MSE values and find new ?DB and ? values to replace values associated with a largest MSE; a state controller coupled with the memory and the modules to control an operation thereof; and an output buffer to present a fitted solution of the autocorrelation equation.

Abstract: This patent document describes, among other things techniques for determining when to switch between a channel access procedure that includes a listen before talk (LBT) process and a channel access procedure that does not include a LBT process. In one aspect, a method of wireless communication is disclosed. The method includes receiving, by a first network node from a second network node, a message specifying a first channel access procedure to be used by the first network node after being powered up. The method further includes selecting, by the first network node, a second channel access procedure to be used after the first channel access procedure after satisfying a condition, wherein if the condition is not satisfied the first network node continues to use the first channel access procedure.

Abstract: A power supply system includes a convertor and a power supply control device. The power supply control device includes a first power supply interface configured to connect to a mains power interface to obtain electric power, and a second power supply interface configured to supply power to a power tool battery pack. The convertor includes a first conversion interface and a second conversion interface. The first conversion interface is connected to an electric vehicle, the second conversion interface is connected to the first power supply interface, so that the power supply control device connects to the convertor to connect to the electric vehicle to obtain electric power. The convertor can also communicate with the power supply control device and the electric vehicle to achieve power matching of the power supply system based on the communication.

Abstract: A wireless device may use two or more communication interfaces, in which operation of a first interface interferes with communication using a second interface. For example, a circuit board within a device housing may include an antenna used for communication with a first communication interface that is spaced apart from circuitry that includes a second communication interface. A conductor connected to the circuitry extends toward the antenna to transfer energy using induction. The conductor may engage a central portion of the circuitry associated with lower current than the edges of the circuitry to further reduce interference. The antenna is operated at a frequency that differs from the resonance frequency of the antenna, which may reduce the effect of interference to a larger extent than the associated loss in efficiency of the antenna. A matching network or other type of transformer is used to tune the output of the antenna.