Abstract: The present disclosure provides a method for generate array element excitation of a conformal array based on an iterative algorithm, the method comprises obtaining a first index of a pattern of an array antenna by a processor; obtaining multiple optimization objectives according to design indexes of the array antenna by the processor; based on the first index, iteratively determining, by the processor, a first array element excitation satisfying a dynamic range ratio (DRR) of an array element excitation amplitude under the first index through a preset conversion relationship and a preset approach; based on the first array element excitation, obtaining, by the processor, a second array element excitation satisfying the multiple optimization objectives under a constraint of the DRR of the array element excitation amplitude through a solution algorithm; based on the second array element excitation, the design indexes, and basic parameters, generating, by the processor, the array antenna, the basic parameters inc

Abstract: The subject technology requests a group identifier (ID) based on an item identification indicator to an extension application programming interface (API). The subject technology requests, using the extension API, a set of augmented reality (AR) content generator IDs, based on the item identification indicator, to a shopping AR content generator service. The subject technology receives the set of AR content generator IDs based on a mapping of the item identification indicator to a collection of AR content generator IDs. The subject technology requests, using the extension API, first metadata associated with the set of AR content generators and the item identification indicator to the shopping AR content generator service. The subject technology requests, using the extension API, a set of products based on the first metadata. The subject technology generates, using the extension API, a group ID based on the set of products. The subject technology receives the group ID.

Abstract: The disclosure provides a power control device, which comprises a bleeder circuit forming a first discharging path and an aux low-voltage (LV) power supply unit forming a second discharging path. The bleeder circuit is connected with a voltage-regulating capacitor stably maintaining the high-voltage (HV) level from a HV battery. The aux LV power supply unit is connected with the bleeder circuit and the voltage-regulating capacitor in parallel. The aux LV power supply unit provides an aux LV level to the driver, when the power system operates abnormally, the HV level is discharged through the first and second discharging path and/or a third discharging path formed by a driver and a motor.

Abstract: A memory device and a method of operating a memory device are disclosed. In one aspect, the memory device includes a plurality of non-volatile memory cells, each of the plurality of non-volatile memory cells is operatively coupled to a word line, a gate control line, and a bit line. Each of the plurality of non-volatile memory cells comprises a first transistor, a second transistor, a first diode-connected transistor, and a capacitor. The first transistor, second transistor, first diode-connected transistor are coupled in series, with the capacitor having a first terminal connected to a common node between the first diode-connected transistor and the second transistor.

Abstract: The present invention discloses Lactobacillus sakei for alleviating allergy and a preparation method thereof, and particularly Lactobacillus sakei for alleviating wheat-dependent, exercise-induced anaphylaxis (WDEIA). The Lactobacillus sakei is classified and named as Lactobacillus sakei. The Lactobacillus sakei has been preserved in China Center for Type Culture Collection since Apr. 12, 2003, with a preservation number of CCTCC DB 20082413. The Lactobacillus sakei can regulate the immune function of a human body to prevent/treat WDEIA by reducing the contents of specific IgE and histamine in serum of WDEIA patients.

Abstract: A scanning antenna is provided in the present disclosure. The scanning antenna includes a first substrate and a second substrate which are arranged oppositely; a liquid crystal layer between the first substrate and the second substrate; and a feed signal access terminal and a plurality of phase shift units, where the plurality of phase shift units is connected with each other, each phase shift unit is connected to the feed signal access terminal, and electrical lengths between at least two phase shift units and the feed signal access terminal are different. The present disclosure not only realizes one-dimensional wave beam scanning, but also has desirable scanning effect. The bias voltage is not needed to be independently applied to each phase shift unit, which can greatly simplify the bias voltage line configuration and be beneficial for reducing production cost and wiring difficulty.

Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Abstract: A memory circuit includes a sense amplifier coupled to a non-volatile memory cell, and a detection circuit coupled to the sense amplifier and the non-volatile memory cell. The sense amplifier includes a comparator. The comparator includes a first input terminal coupled to the non-volatile memory cell by a first node, and configured to receive a first voltage, a second input terminal configured to receive a second voltage, and a first output terminal configured to output a first output signal. The detection circuit is configured to latch the first output signal and disrupt a current path between the non-volatile memory cell and the sense amplifier. The detection circuit includes a first inverter. A first input terminal of the first inverter is configured to receive the first output signal. A first output terminal of the first inverter is configured to generate an inverted first output signal.

Abstract: Computer security improvements relating to defenses for real-time account takeover detection using behavior sequence clustering are disclosed. A service provider may utilize a framework having computing operations for detecting and protecting from account takeovers by malicious entities that may utilize compromised accounts. In this regard, the service provider may utilize an account takeover framework and processing pipeline that may identify account behaviors executed by computing devices when using accounts with the service provider. These behaviors may be clustered into behavior sequences that may be verified as sufficiently occurring with other accounts of the service provider. If so, the behavior sequences may be identified as risky and may be used with a real-time detection system to monitor for those behavior sequences. If detected, security operations may be automatically executed to prevent further account takeover risk by malicious entities.

Abstract: Embodiments of this application provide a gateway handover method, a gateway reselection method, and a communications apparatus. The method includes: A source gateway determines to perform gateway handover on a terminal device; determines a target gateway that is to be used to serve the terminal device; and hands over the terminal device from the source gateway to the target gateway. According to the gateway handover method, the gateway reselection method, and the communications apparatus provided in the embodiments of this application, in a non-3GPP network architecture, when gateway handover needs to be performed on the terminal device, the source gateway of the terminal device or the terminal device may hand over the terminal device from the source gateway of the terminal device to the target gateway, to implement gateway handover in the non-3GPP network architecture.

Abstract: A scanning antenna is provided in the present disclosure. The scanning antenna includes a first substrate and a second substrate which are arranged oppositely; a liquid crystal layer between the first substrate and the second substrate; and a feed signal access terminal and a plurality of phase shift units, where the plurality of phase shift units is connected with each other, each phase shift unit is connected to the feed signal access terminal, and electrical lengths between at least two phase shift units and the feed signal access terminal are different. The present disclosure not only realizes one-dimensional wave beam scanning, but also has desirable scanning effect. The bias voltage is not needed to be independently applied to each phase shift unit, which can greatly simplify the bias voltage line configuration and be beneficial for reducing production cost and wiring difficulty.

Abstract: Communication methods and related devices are described to manage an air interface resource through a common radio resource control (RRC) connection of different cards in a multi-SIM multi-standby terminal and implement service concurrency of the multi-SIM multi-standby terminal. In an example method, after setting up an RRC connection for communication between a first network and a terminal device, an access network device receives, from the terminal device through the RRC connection, a registration request message that requests to register with a second network, and sends the registration request message to a core network device in the corresponding second network. Then, after the access network device receives a registration response message from the core network device, the access network device sends the registration response message to the terminal device, to complete a process in which the terminal device registers with the second network.

Abstract: The present disclosure provides a method for conformal array pattern synthesis based on a solution space pruning particle swarm optimization algorithm (PSO), the method comprises taking a suppression index of a peak side lobe level (SLL) as a first index, obtaining the first array element excitation satisfying the first index under the constraint of the dynamic range ratio (DRR) of the array element excitation amplitude through iterations; obtaining a second array element excitation satisfying the multiple optimization objectives under the constraint of the DRR of the array element excitation amplitude by a solution algorithm according to the first array element excitation.

Abstract: An electrostatic comb drive-based silicon-based MEMS optical switch and an N×N array. The optical switch is primarily constituted by two parts, namely two separated crossing waveguide mirrors and an electrostatic comb driver. The crossing waveguide mirrors are constituted by two crossing waveguides and four adiabatic tapered waveguides. The electrostatic comb driver comprises an electrostatic comb, an island spring structure, and a transmission rod. The electrostatic comb is a pair of comb teeth structures, a voltage is applied to fixed comb teeth therein, and the other parts remain grounded. Under the effect of an electrostatic force, movable comb teeth move towards the fixed comb teeth, a spring distends and pushes via the transmission rod the movable crossing waveguide mirror to move towards the fixed crossing waveguide mirror, and the separated crossing waveguide mirrors are recombined into a complete crossing waveguide.

Abstract: A secure communication method and a secure communications apparatus related to the field of communications technologies and applied to a terminal. The terminal has a first security context and a second security context, the first security context is used by the terminal to communicate with a first network, the second security context is used by the terminal to communicate with a second network, and the first security context and the second security context include different first information.

Abstract: A method for operating a memory device is provided. A first address is decoded to select a bit line of a memory device. A second address is decoded to select a word line of the memory device. A word line voltage is applied to the selected word line. A bit line voltage is applied to the selected bit line. A first bias voltage is applied to each of a plurality of unselected word lines connected to a plurality of memory cells connected to the selected bit line san a memory cell connected to both the selected bit line and the selected word line.

Abstract: A memory device is disclosed, including a bit cell storing a bit data. The bit cell includes multiple first transistors coupled to a node, multiple second transistors each coupled in series to a corresponding one of the first transistors, and at least one third transistor. The first transistors are turned on in response to a control signal. The second transistors are turned on in response to a first word line signal. The at least one third transistor has a control terminal to receive a second word line signal. In a programming mode of the memory device, the at least one third transistor provides, in response to the second word line signal, an adjust voltage to the node. The adjust voltage is associated with a voltage level of a first terminal of the at least one third transistor.

Abstract: In various aspects of the present disclosure, systems and methods are described to identify and resolve structured queries so they execute consistently and accurately against any data architecture, and for example, dynamic or unstructured database stores. According to one embodiment, a dynamic schema data system implements a query dialect that is configured to expose underlying flexible schemas of the dynamic schema data system, any structured data, unstructured or partially structured data, and expressive querying native to the dynamic schema system in a language that is compatible with structured queries, and for example, compatible with SQL-92. In further embodiments, the query dialect is configured to enable consistency with existing dynamic schema database query semantics (e.g., the known MongoDB database and associated query semantics).

Abstract: A vehicle parking management method, comprising: on at least one of a vehicle and a mobile device, acquiring current parking place information and a plurality of additional information of a parking lot, the current parking place information at least comprising a location of an unoccupied parking place, each additional information in the plurality of additional information being configured for identifying associated data; on the basis of the current parking place information and the additional information, generating a parking place distribution image, the parking place distribution image at least indicating the unoccupied parking place and the additional information; presenting the parking place distribution image; and in response to that an operation targeting the unoccupied parking place or the additional information is detected, generating a navigation indication related to a target unoccupied parking place.

Abstract: A memory circuit includes a non-volatile memory cell, a sense amplifier coupled to the non-volatile memory cell, and configured to generate a first output signal, and a detection circuit coupled to the sense amplifier and the non-volatile memory cell. The detection circuit is configured to latch the first output signal and disrupt a current path between the non-volatile memory cell and the sense amplifier.