Abstract: A bulk acoustic wave resonator and a preparation method thereof, the bulk acoustic wave resonator includes a first electrode and a second electrode, and a piezoelectric film between the first and second electrodes, the piezoelectric film includes n layers of polarized piezoelectric films, and the polarities of any two adjacent layers of the polarized piezoelectric films are opposite. The acoustic mirror is disposed between the substrate and the first electrode, by preparing the polarized piezoelectric films with opposite polarities in layers, polarity inversion is achieved. The bulk acoustic wave resonator of the present disclosure can reduce the requirements for the piezoelectric film materials and increase the resonant frequency under the condition of not reducing the total thickness of the piezoelectric film or introducing a transition electrode. The process is simplified, the acoustic wave loss is reduced, and the quality factor is improved.

Abstract: A method of determining interaction information, an electronic device and a storage medium are provided, which relates to a field of artificial intelligence technology, in particular to a large model, a generative model, an NLP, an intelligent search and other fields. An implementation is to determine a plurality of questioning dimensions according to query information of a subject and historical query information, where each questioning dimension includes a dimension name and a plurality of options; determine a target questioning dimension from the plurality of questioning dimensions according to evaluation values of the plurality of questioning dimensions and whether semantic information of the plurality of questioning dimensions are consistent with semantic information of a query result associated with the query information; and determine the interaction information according to the dimension name and the plurality of options in the target questioning dimension.

Abstract: Methods, non-transitory computer readable media, and relocation analysis systems are disclosed that obtain employee data, a current office address, and relocation data. A first commute time is determined using a maps platform API to the current office address and a second commute time is determined to each of the relocation offices. A dashboard GUI is output for display that includes a commute time ranking of the relocation offices and a heat map reflecting a density of employee locations determined based on home addresses and including selectable locations of the relocation offices. A first commute time distribution is generated based on the first commute times and a second commute time distribution is generated based on the second commute times for one of the relocation offices corresponding to a selected one of the selectable locations. The dashboard GUI is then updated to include a visualization generated based on the commute time distributions.

Abstract: An automatic recognition method for a dry quasi-stationary front in Kunming, Yunnan, China is provided. The automatic recognition method includes: reading data; calculating, by a differential method, a temperature lapse rate between each layer of each point from a ground surface to 650 hPa, and acquiring a maximum inversion trend value; acquiring an initially selected inversion distribution based on the maximum inversion trend value; removing a nighttime clear sky radiation inversion, retaining only a frontal inversion, and binarizing (0, 1); finding a boundary between inversion and non-inversion; removing the abnormal candidate frontal points, and acquiring frontal nodes; removing meso- and micro-scale systems; and performing one-dimensional Gaussian filtering on longitude data of the frontal nodes, and connecting the filtered frontal nodes to acquire a quasi-stationary front in Kunming, Yunnan, China.

Abstract: Aspects of the subject technology relate to systems, methods, and computer-readable media for identifying a quality of labeled data. Labeled data of a data set that exists at a specific granularity level can be accessed. The labeled data can be sampled on a lower granularity level relative to the specific granularity level of the data set to generate sampled data of the data set. The sampled data can be labeled to generate ground truth labeled data of the data set. The labeled data can be compared to the ground truth labeled data to identify a labeling quality metric of the labeled data. Relabeling of the data set can be performed based on the labeling quality metric.

Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

Abstract: Embodiments of the present disclosure provide a data transmission method, apparatuses, and a smart watch device. A first BLE module of a first MCU of a smart watch receives an instruction of transmitting data which includes an instruction of transmitting the data to an AP of the smart watch or a mobile terminal. The first BLE module determines whether the AP is in a wake-up state if the instruction is to transmit the data to the AP, and transmits the data to a second BLE module of the AP through a RFCOMM interface if the AP is determined to be in the wake-up state, otherwise, buffers the to-be-transmitted data. The first BLE module synchronizes state information to the second BLE module if the instruction is to transmit the data to the mobile terminal, and transmits the data to the mobile terminal through the RFCOMM interface.

Abstract: A method of site-selective growth of a nanocrystal from an anisotropic seed can include immersing an anisotropic seed functionalized with a ligand in a growth solution having a nanocrystal precursor, a complexing agent, and a reducing agent to form a growth solution, wherein an amount of the reducing agent and/or any amount of the complexing agent is selected to define a supersaturation of the growth solution that is sufficient for overcoming an energy barrier of one or more selected regions of the functionalized seed to selectively growth the nanocrystal at the one or more selected regions.

Abstract: A method for domain name resolution is provided, applied to a system for domain name resolution deployed in a scheduling cluster. The system includes a scheduling system, a probe system, and an analysis system. The scheduling system receives each query request from each DNS server, records each egress IP address of each local DNS server to generate a list of IP addresses to be probed, and reports the list of IP addresses to the probe system. The probe system distributes the list of IP addresses to each probe to probe each of IP addresses in the list through each probe. And the analysis system receives each probing result fed back by each probe, sets each authoritative DNS server for each local DNS server, and processes each domain name resolution request sent by each local DNS server through each authoritative DNS server.

Abstract: A data processing method, apparatus and system, and a computer-readable storage medium are disclosed, wherein the method is applied to a first electronic device, the first electronic device includes a first processing unit that runs a first operating system and a second processing unit that runs a second operating system, and the working energy consumption of the first processing unit is less than the working energy consumption of the second processing unit. The method includes: the first processing unit executing the selection of a positioning system, and storing selected positioning system information; when it is determined that a first trigger condition for executing the synchronization of the positioning system information is met, synchronizing the stored positioning system information to the second processing unit; and the second processing unit executing positioning-related processing according to the obtained positioning system information.

Abstract: A device-cloud collaboration method, platform, and apparatus, where the device-cloud collaboration method includes: obtaining current spatial information of each target terminal; tracking a spatial information change of each target terminal, to obtain a spatial information change status of each target terminal; and determining, based on spatial information-based arbitration conditions preset for different target mobile applications and the spatial information change status of the target terminal corresponding to the different target mobile applications, whether to trigger subsequent operations related to the different target mobile applications. The device-cloud platform blocks a change in which the user is not interested through arbitration of a spatial information change of the user, and provides an appropriate spatial information change to a mobile application, or triggers a subsequent operation of the mobile application.

Abstract: A method for domain name resolution is provided, applied to a system for domain name resolution deployed in a scheduling cluster. The system includes a scheduling system, a probe system, and an analysis system. The scheduling system receives each query request from each DNS server, records each egress IP address of each local DNS server to generate a list of IP addresses to be probed, and reports the list of IP addresses to the probe system. The probe system distributes the list of IP addresses to each probe to probe each of IP addresses in the list through each probe. And the analysis system receives each probing result fed back by each probe, sets each authoritative DNS server for each local DNS server, and processes each domain name resolution request sent by each local DNS server through each authoritative DNS server.

Abstract: Provided is an automatic secondary degassing fixed-length mechanism for an ultrathin heat pipe. The automatic secondary degassing fixed-length mechanism comprises an automatic lifting device A installed on a length adjustment sliding table, an automatic clamping device B, a length positioning and extension device C and a PLC. The present invention, having the advantages of simple structure, high efficiency and stability, is suitable for the secondary degassing fixed-length processing of heat pipes of different lengths, and particularly suitable for processing ultrathin heat pipes made of a thin-walled heat pipe by a flattening process, having advanced structural design and stable and high-efficiency production. In this mechanism, size positioning and automatic clamping in the secondary degassing fixed-length process for the heat pipes are correspondingly achieved through the automatic lifting device A and the automatic clamping device B.

Abstract: A switching device for a multi-split air conditioner and a multi-split air conditioner having same. The switching device has a base, a drain tank, multiple damping pads, and multiple fixing members. The base has a bottom wall and side walls, the side walls surrounding the bottom wall and extending upward from the edge of the bottom wall. The drain tank is disposed in the base, and the bottom surface of the drain tank is vertically spaced apart from the bottom wall of the base. The multiple damping pads are disposed on the drain tank and arranged at intervals in the circumferential direction of the drain tank. The multiple fixing members are respectively disposed on the damping pads and are connected to the side walls of the base. The multiple fixing members are all spaced apart from the drain tank.

Abstract: An embeddable seepage module capable of being embedded into an interface ring shear apparatus is disclosed, wherein: the seepage module includes an annular cylinder, a seepage pressure regulation system, a top plate and a bottom plate; the interface ring shear apparatus includes an upper shear box and a lower shear box; the annular cylinder, the top plate, the bottom plate, the upper shear box and the lower shear box form an internal pressure cavity and an external pressure cavity; the internal pressure cavity is able to realize the precise double control of the soil seepage pressure and water flow through the seepage pressure regulation system; the external pressure cavity is able to collect fine soil particles under pressure seepage. In the case of soil seepage-shear coupling, the seepage module is assembled firstly for seepage, and after completing the seepage, the external pressure cavity is removed for ring shear tests.