Abstract: Provided is an electrical signal sampling device. The electrical signal sampling device includes a pulse signal source, a first sampling module, and a signal delay module. The pulse signal source is configured to generate a pulse signal. The first sampling module is connected to the pulse signal source through a coupler. The coupler is configured to fan-out the pulse signal to generate a test input signal and a sampling incidence signal. The test input signal is input into a tested device from the coupler and then is coupled to form a test output signal. The first sampling module is configured to collect the sampling incidence signal and the test output signal through the coupler. The signal delay module generates N excitation signals through a preset delay.

Abstract: The capability to print to a portable document format (PDF) file is provided in a virtualized computing environment that supports a virtual desktop infrastructure (VDI). Printing-related properties, of local printers coupled to a client device, are provided to a host, so that virtual printers at the host can be configured with the printing-related properties. A simulator may be provided at the host to receive the printing-related properties from the client device and to receive a query from a virtualized computing instance for the printing-related properties, instead of the query being directly sent to the client device.

Abstract: The present disclosure discloses a method for dual-motor control on an electric vehicle based on adaptive dynamic programming. First, total torque required is calculated based on obtained data information of the electric vehicle under various driving conditions, and offline training is conducted on an execution network and an evaluation network. Then total torque is dynamically distributed for two motors of the electric vehicle under various driving conditions to obtain an efficiency MAP database. Afterwards, iteration and online learning are conducted on the execution network and the evaluation network based on data information of the electric vehicle under different driving conditions that is obtained in real time, so as to find an optimal control law for the electric vehicle under a real-time driving condition. In this way, the dual-motor control on the electric vehicle is optimized.

Abstract: The disclosure is an engine simulation test device capable of realizing an ultrahigh compression temperature and pressure, belonging to the field of a diesel engine high-temperature and high-pressure system, solving the problems that the existing engine simulation test cannot achieve ultra-high compression temperature and pressure, and the temperature and pressure are not adjustable. It includes a compressed air inlet mechanism, a nitrogen gas inlet mechanism, a pressure stabilizing mechanism, a cyclic heating mechanism, an air inlet mechanism and a fast compressor mechanism.

Abstract: A method and apparatus for processing a table, a device, a storage medium and a product. An implementation of the method comprise: receiving a content query request for a target table; acquiring a target tree structure of the target table according to the content query request; where, the target tree structure is obtained by performing absorbing processing and merging processing on at least one target cell in the target table; acquiring to-be-queried content in the content query request; and querying target content matching the to-be-queried content from the target tree structure.

Abstract: A display device, comprising: a flexible display module (4), a fixing frame (11) and a bending frame (12). The flexible display module comprises a first planar region (41), a second planar region (43), and a first bending region (42) between the first planar region and the second planar region. The fixing frame comprises a first frame (111) for fixing the first planar region and a second frame (112) for fixing the second planar region. The bending frame comprises a first deformation frame (31), a first bending frame (121), a second deformation frame (32), a second bending frame (122), and a bending mechanism (123) between the first bending frame and the second bending frame, the first bending frame being fixed to the first frame by means of first deformation frame, second bending frame being fixed to the second frame by means of second deformation frame.

Abstract: The present invention discloses a fabrication method and use of a ?40 mm large-size and high-contrast fiber optic image inverter, belonging to the field of manufacturing of fiber optic imaging elements. The light-absorbing glass for preparing the ?40 mm large-size and high-contrast fiber optic image inverter consists of the following components in molar percentage: SiO2 60-69.9, Al2O3 1.0-10.0, B2O3 10.1-15.0, Na2O 1.0-8.0, K2O 3.0-10.0, MgO 0.1-1.0, CaO 0.5-5.0, ZnO 0-0.1, TiO2 0-0.1, ZrO2 0.1-1.0, Fe2O3 3.0-6.5, Co2O3 0.1-0.5, V2O5 0.51-1.5 and MoO3 0.1-1.0. The fiber optic image inverter has the advantages of low crosstalk of stray light, high resolution and high contrast.

Abstract: The present disclosure relates a display device including a first support member, a second member and a flexible display module. The second support member has a gap with the first support member. The flexible display module is arranged on a first surface of the first support member and a third surface of the second support member. The first surface includes a first mating surface close, the third surface includes a third mating surface, and the first and third mating surfaces are arranged symmetrically. A distance from the first mating surface to the flexible display module increases as a distance from the first mating surface to the second support member decreases, and a distance from the third mating surface to the flexible display module increases as a distance from the third mating surface to the first support member decreases.

Abstract: Methods for creating a knowledge graph for a video are disclosed. Aspects include obtaining the video, processing the video to extract audio information and video information, and storing the extracted audio information and video information with a timestamp corresponding its occurrence in the video. Aspects also include creating a plurality of groups of the extracted audio information and video information based at least in part on the timestamps and extracting two or more keywords from each of the plurality of groups. Aspects further include identifying a relationship between the two or more keywords based on the extracted audio information and video information and creating a graph having a plurality of nodes and a plurality of links that connect a pair of nodes of the plurality of nodes. Each node corresponds to an extracted keyword and each link corresponds to the identified relationship between the pair of nodes.

Abstract: A system for ultra-high temperature in-situ fretting fatigue experiment, includes a heat preservation cover defining a, a heating device arranged in the mounting space, a first test sample, a second test sample, and a clamping device arranged in the mounting space. The first test sample and the second test sample are arranged at an upper end of the heating device along a horizontal direction. A mortise is formed at an end of the first test sample facing towards the second test sample. A tenon mating with the mortise is formed at an end of the second test sample facing towards the first test sample. The clamping device is configured to be clamped at two ends of the mated first test sample and second test sample and to apply a periodically reciprocating loading along a length direction of the first test sample and the second test sample.

Abstract: An aluminum borate whisker reinforced and toughened non-metallic matrix composite is provided, which specifically includes a non-metallic material reinforced and toughened with aluminum borate whiskers. The composite exhibits a higher bending strength and fracture toughness and a higher wear resistance. A method for preparing the composite is also provided. The method includes mixing the aluminum borate whiskers and the non-metallic material to form a mixture; and sintering the mixture by a vacuum hot press method, or molding the mixture.

Abstract: A multi-level gate driver applied to the SiC metal-oxide-semiconductor field-effect transistor (MOSFET) includes three parts: the SiC MOSFET information detection circuit, the signal level shifting circuit, and the segmented driving circuit. The SiC MOSFET information detection circuit includes the SiC MOSFET drain-source voltage detection circuit and the SiC MOSFET drain-source current detection circuit. The segmented driving circuit includes a turn-on segmented driving circuit and a turn-off segmented driving circuit.

Abstract: An aluminum borate whisker reinforced and toughened non-metallic matrix composite is provided, which specifically includes a non-metallic material reinforced and toughened with aluminum borate whiskers. The composite exhibits a higher bending strength and fracture toughness and a higher wear resistance. A method for preparing the composite is also provided. The method includes mixing the aluminum borate whiskers and the non-metallic material to form a mixture; and sintering the mixture by a vacuum hot press method, or molding the mixture.

Abstract: A switchable glass panel, a method of forming switchable glass panel and a method of forming switchable glass are provided. The method includes: forming a first electrode layer and a first alignment layer sequentially on a first substrate, and forming a second electrode layer and a second alignment layer sequentially on a second substrate; forming first sealants distributed along a first direction, second sealants distributed along a second direction and an edge sealant at the edge of the first alignment layer on the first alignment layer, where the first sealants and the second sealants form a grid with a plurality of openings; forming a plurality of liquid crystal layers corresponding to the plurality of openings on the second alignment layer; and oppositely arranging the first substrate and the second substrate to form a cell, and curing the first sealants and the second sealants.

Abstract: The disclosure provides an outdoor device for simulating a pond ecosystem comprising a plurality of simulated ponds connected together by pipelines and including an adjusting pool, a plurality of control groups and a plurality of treatment groups with different concentrations; the plurality of control groups and the treatment groups are randomly distributed in the ponds according to a random draw method or a random allocation method, and the adjusting pool is a transfer station for water inlets and outlets of the ponds. According to the device, the plurality of control groups and treatment groups are arranged in a system, achieving a scale of a middle-scale pond ecological simulation system, which can stimulate an actual complex hydrostatic ecological system including a plurality of aquatic macrophytes, algae, zooplankton, benthos and microorganisms, and evaluate the effects of the complex ecological efficiency caused by chemical pollutants entering an actual water body.

Abstract: A method and apparatus for evaluating aortic dissection surgery, an electronic device, and a storage medium are provided. The method comprises: obtaining a preoperative aortic model of a patient; simulating aortic dissection surgery on the basis of a virtual stent technology and the preoperative aortic model to obtain a postoperative aortic model; obtaining displacement amount of the same blood vessel node between the preoperative aortic model and the preoperative aortic model; and evaluating a surgical risk degree of the patient on the basis of the displacement amount. The occurrence probability of postoperative complications is related to the displacement amount.

Abstract: A switchable glass panel, a method of forming switchable glass panel and a method of forming switchable glass are provided. The method includes: forming a first electrode layer and a first alignment layer sequentially on a first substrate, and forming a second electrode layer and a second alignment layer sequentially on a second substrate; forming first sealants distributed along a first direction, second sealants distributed along a second direction and an edge sealant at the edge of the first alignment layer on the first alignment layer, where the first sealants and the second sealants form a grid with a plurality of openings; forming a plurality of liquid crystal layers corresponding to the plurality of openings on the second alignment layer; and oppositely arranging the first substrate and the second substrate to form a cell, and curing the first sealants and the second sealants.

Abstract: The present disclosure provides a shift register including: a pre-charge reset circuit and an output circuit, the pre-charge reset circuit is configured to write, in a pre-charge stage, an input signal in an active level state into the pull-up node in response to the control of a first control signal, and write, in a reset stage, an input signal in an inactive level state into the pull-up node in response to the control of a second control signal; the output circuit is configured to write, in an output stage, a clock signal in an active level state into a signal output terminal in response to the control of an electric signal in an active level state at the pull-up node, and write, in the reset stage, a clock signal in an inactive level state into the signal output terminal in response to the control of the second control signal.

Abstract: The present application discloses a display panel having an array of a plurality of subpixels. The display panel includes a plurality of light modulators configured to modulate display contrast of the display panel. Each of the plurality of light modulators is in a light modulation region configured to allow light transmitting through the display panel. Light transmittance in the light modulation region is controlled by a first gate line and a first data line for driving image display in a first subpixel of the plurality of subpixels.