Abstract: Disclosed are an optimization method for distributed execution of a deep learning task and a distributed system. The method includes that: a computation graph is generated based on a deep learning task and hardware resources are allocated for the distributed execution of the deep learning task; the allocated hardware resources are grouped to obtain at least one grouping scheme; for each grouping scheme, tensor information related to multiple operators contained in the computation graph is split based on the value of at least one factor under this grouping scheme to obtain multiple candidate splitting solutions; and an optimal efficiency solution for executing the deep learning task of the hardware resources is selected by using a cost model. Through operator splitting based on device grouping combined with optimization solving based on the cost model, automatic optimization of distributed execution for various deep learning tasks is realized.

Abstract: A method for calibrating the reception of a phased array antenna with a built-in local oscillator and an electronic device, are provided. The method includes: constructing and configuring a test system, where a transmitting antenna is located on the central axis of a phased array antenna, and the transmitting antenna is connected to a signal source; dividing the phased array antenna into a plurality of centrally symmetric ring areas according to the central axis of the phased array antenna, and each ring area has one or more centrally symmetric sub-units, and each sub-unit includes a plurality of antenna channels of the same number; and receiving signals using the phased array antenna and transmitting signals with the transmitting antenna, and performing amplitude and phase calibrations between antenna channels within sub-units of the ring areas, between sub-units of the ring areas, and between different ring areas.

Abstract: A method for calibrating the transmission of a phased array antenna with a built-in local oscillator and an electronic device are provided. The method includes: constructing and configuring a test system, where a receiving antenna is located on a central axis of the phased array antenna; dividing the phased array antenna according to a layout of the phased array antenna, where the layout of the phased array antenna is divided into centrally symmetric ring areas, and each of the ring areas includes one or more centrally symmetric sub-units, and each of the sub-units includes a same number of antenna channels; and transmitting signals using the phased array antenna and receiving signals by the receiving antenna, and performing amplitude and phase calibration between the antenna channels within the sub-units of the ring areas, between the sub-units of the ring areas, and between the ring areas.

Abstract: A catalytic cracking catalyst contains 10-70 wt % of a cracking active component, 10-60 wt % of a binder and 10-70 wt % of a clay. The cracking active component has 5-100 wt % of a first Y-type molecular sieve and 0-95 wt % of a second molecular sieve. The first Y-type molecular sieve is a modified molecular sieve based on the crystal modification of kaolin and has the sodium oxide content of less than 2 wt %. The process for preparing the catalyst includes the steps of vigorously mixing and stirring a cracking active component comprising a modified molecular sieve based on the crystal modification of kaolin, a binder and a clay with water; spray drying; washing; filtering; and drying. The catalyst is used in the catalytic cracking reaction of heavy oils, and has a good coke selectivity, as well as a higher heavy oil conversion rate.

Abstract: A method for detecting visual anomalies.

Abstract: A ZSM-5/? core-shell molecular sieve has a core composed of at least two crystal grains of ZSM-5 molecular sieve and a shell composed of a plurality of crystal grains of ? molecular sieve. The ZSM-5 molecular sieve grains has an average grain size of 0.05-15 ?m. The core-shell molecular sieve has a shell coverage of 50-100%, a shell thickness of 10-2000 nm, and an average grain size of the ? molecular sieve grains in the shell of 10-500 nm. A ratio of a height of a diffraction peak at 2?=22.4° to a height of a diffraction peak at 2?=23.1° in an X-ray diffraction pattern of the ZSM-5/? core-shell molecular sieve is 0.1-10:1.

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.