Abstract: A method and a system for providing calibration for a polychromatic photon counting detector forward counting model. Measurements with multiple materials and known path lengths are used to calibrate the photon counting detector counting response of the forward model. The flux independent weighted bin response function is estimated using the expectation maximization method, and then used to estimate the pileup correction terms at plural tube voltage settings for each detector pixel. The beam hardening corrections are then applied to the measured projection data sinogram, and the corrected sinogram is reconstructed to the counting image at the selected single energy.

Abstract: The present disclosure belongs to the technical field of space satellite propulsion, and particularly relates to a digital filter based method for measuring thrust response time of a satellite-borne micro-thruster.

Abstract: Embodiments of this application relate to the technical field of optical design, and disclose a method for adjusting field of view angle applied to a waveguide plate in a near-eye display equipment, the waveguide plate forms a tilt angle relative to horizontal direction of human face, the method firstly acquires refractive index, bottom angle of the waveguide plate and a required field of view angle, then calculates the tilt angle of the waveguide plate according to the refractive index and bottom angle of the waveguide plate and the field of view angle, and finally, adjusts the tilt angle to make sure the near-eye display equipment with the field of view angle; the method disclosed by this application enables the waveguide plate to realize low refractive index and large field of view angle at the same time, and features better imaging, lower cost and better stability.

Abstract: A video generation method includes: acquiring an original image corresponding to a target frame, and identifying a target object in the original image; according to a sliding zooming strategy, performing sliding zooming processing on an initial background image in the original image excluding the target object, so as to obtain a target background image, wherein the sliding zooming strategy is at least used for indicating a sliding direction and a zooming direction of the initial background image, and the sliding direction is opposite to the zooming direction; according to the position of the target object in the original image, superimposing an image of the target object onto the target background image to obtain a target image corresponding to the target frame; and generating a target video on the basis of the target image corresponding to the target frame.

Abstract: The invention provides an over-current protection system. The over-current protection system includes a sensing device, a comparator, a first transistor, and a second transistor. The sensing device is adapted to sense a current flowing to an electrical device. The comparator is adapted to compare a signal received from the sensing device and a reference signal to generate any one of a high signal and a low signal, wherein the output of the comparator is connected to a control device. The first transistor is connected to the output signal of the comparator to control the first transistor, wherein the first transistor is in a conductive state when the output signal of the comparator is a high signal. The second transistor is connected to and controlled by the first transistor, wherein the second transistor is in a conductive state when the first transistor is in the conductive state.

Abstract: A non-destructive testing method for crack defects, and a testing standard part and a manufacturing method thereof, used for the non-destructive testing of crack defects of an additive manufacturing workpiece. The manufacturing method of the crack defect standard part comprises: step A, setting a crack defect area of the standard part, in the crack defect area, the proportion of the crack defects in the crack defect area is set as a first proportion value; step B, selecting an additive manufacturing forming process for manufacturing the crack defect area to obtain a first process parameter of the additive manufacturing forming process corresponding to the first proportion value; and step C, performing the additive manufacturing forming process based on the first process parameter to form the crack defect area. The non-destructive testing method for crack defects of the present invention has the advantages of accurate and reliable testing results.

Abstract: A method for prefabricating pore defects by controlling a SLM process, including performing laser scanning on a specified metal melt layer (LY) according to a first scan path (P1) and a second scan path. The first scan path (P1) and the second scan path (P2) have a path overlap zone (A0), the path overlap zone (A0) has a predetermined width, and laser energy input superimposed in the path overlap zone (A0) is controlled to reach a predetermined energy value, whereby keyholes are formed at a plurality of positions in a lengthwise direction of the path overlap zone (A0), the specified metal melt layer (LY) is taken as a defect layer, and the keyholes in the path overlap zone (A0) is taken as pore defects.

Abstract: A pixel unit and an LCD device are disclosed. The pixel unit comprises four sub-pixel units. Each of the sub-pixel units comprises a pixel electrode, comprising a plurality of strip portions positioned at intervals. Two adjacent strip portions define a slit. One strip portion and one slit adjacent to the strip potion are defined as an electrode portion and a width of the electrode portion is a sum of a width of the slit and a width of the strip portion. The width of each of the electrode portions and/or the width of each of the strip portions and/or the width of each of the slits is different. Since the pixel electrodes in different positions have a different aperture ratio-voltage curve. This improves the viewing angle deviation of the four domain pixel electrode.

Abstract: A terminal functional side chain-substituted diketopyrrolopyrrole (DPP)-based terpolymer and a preparation method and use thereof is described herein. The terpolymer has the following structural formula: where R1 is a terminal siloxy-substituted swallow-tailed chain with 22 to 52 carbon atoms in total, and t1 and t2 each are an integer of 1 to 18; R2 is a semifluoroalkyl-substituted swallow-tailed chain with 12 to 60 carbon atoms in total and 10 to 46 fluorine atoms in total, t3 and t4 each are an integer of 1 to 16, and t5 and t6 each are an integer of 1 to 10; and Ar is any one selected from the group consisting of aryl, heteroaryl, substituent-containing aryl, and substituent-containing heteroaryl, and m and n each are an integer of 5 to 100.

Abstract: A method for controlling a beam in a cell, includes obtaining traffic distribution data of a plurality of beam areas included in the cell, obtaining a total number of a plurality of beams for a beam area among the plurality of the beam areas, based on the obtained traffic distribution data, and obtaining a beam width of one among the plurality of beams for the beam area, based on the obtained total number of the plurality of beams. The method further includes obtaining, from a candidate beam set, candidate beams for the beam area, based on the obtained total number of the plurality of beams and the obtained beam width of the one among the plurality of beams, and obtaining, from the obtained candidate beams, multiple beams for the beam area, based on a distance between the obtained candidate beams and the beam area.

Abstract: A method and a system for a two-step calibration method for the polychromatic semiconductor-based PCD forward counting model, to account for various pixel summing readout modes for imaging at different resolutions. The flux independent weighted bin response function is estimated using the expectation maximization method, and then used to estimate the pileup correction terms at plural tube voltage settings for each detector pixel. To correct the variation of the detector response due to different PCD sub-pixel summing schemes, the embodiments calibrate forward model parameters based on the various pixel readout modes.

Abstract: A contact resistance monitoring device, a manufacturing method thereof, and a display panel are provided. The contact resistance monitoring device includes a substrate, a gate metal layer disposed on the substrate, an interlayer dielectric layer disposed on the substrate, a source and drain metal layers disposed in the recessed hole of the interlayer dielectric layer, and a pixel electrode layer disposed on the interlayer dielectric layer and the source and drain metal layer.

Abstract: Disclosed is a packing system for staggered placement of cylindrical cargoes with variable specifications, which belongs to the field of logistics and transportation. The system comprises a role layer, a presentation layer, an application layer and a data layer; the presentation layer comprises a browser; the application layer is used to generate a container model and a cargo model, and the cargo models are grouped and put into a packing model; the application layer comprises cargo ordering, cargo grouping, container entry detection, cargo insertion, in-container coordinate calculation, out-of-container coordinate calculation, graphic display, information display, cancellation, local storage and database storage; and the data layer comprises container data and cargo data.

Abstract: The present disclosure provides a compound represented by formula (I), or a salt or a stereoisomer thereof. The compound is capable of effectively inhibiting germination of Clostridium difficile spores with a significant bacteriostatic activity. The compound has an excellent prospect for use in preparation of a drug for preventing and/or treating a C. difficile-caused infectious disease, recurrence of the C. difficile-caused infectious disease, or a complication of the C. difficile-caused infectious disease.

Abstract: Provided are a transition type determination method, an electronic device and a storage medium. The method includes: acquiring a picture matching degree of a candidate transition type with a transition position between two adjacent video clips, and acquiring a music matching degree of the candidate transition type; determining, based on the acquired image matching degree and the acquired music matching degree, a matching degree of the candidate transition type at the transition position; and determining, according to the matching degree, whether to determine the candidate transition type as a target transition type, where the target transition type is used for a transition effect between the two adjacent video clip.

Abstract: Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.

Abstract: Some embodiments of the disclosure describe an evaluation system based on analyte data including a memory storing a program, a display, and a processor. In some examples, the processor is configured to: receive analyte data during a predetermined time period from an object to be tested, acquire a plurality of analyte indicators different from each other based on the analyte data, normalize the plurality of analyte indicators to a predetermined range to acquire a plurality of normalized analyte indicators, plot a polygon pattern corresponding to the analyte data during the first time period as a target polygon pattern, plot a polygon pattern corresponding to the analyte data during the second time period as a reference polygon pattern, and take a line segment between a vertex and a center point as an axis, and display the target polygon pattern and the reference polygon pattern.

Abstract: The present application provides a GOA device and a gate driving circuit. The GOA device includes a pull-up control circuit, a bootstrap capacitor, a pull-up circuit, a pull-down circuit, and a pull-down holding circuit. The present application decreases a number of TFTs of the gate driving circuit and simplifies a structure of the gate driving circuit by multiplexing the bootstrap capacitor, the pull-down circuit, and the pull-down holding circuit.

Abstract: A marine climate environment-bending load collaborative acceleration test method is provided, including conducting a static bending load loading test in an outdoor marine climate environment, conducting an alternate cycle of a dynamic bending load loading test in the outdoor marine climate environment and a test in the outdoor marine climate environment, and conducting an alternate cycle of the dynamic bending load loading test and the static bending load loading test in the outdoor marine climate environment. In the present disclosure, an acceleration rate of the marine climate environment-bending load collaborative acceleration test reaches over 8 times that of the test in the outdoor marine climate environment by taking the maximum bending force as an evaluation index, which may achieve a change from a static test to a static and dynamic combined test for examining and evaluating the environmental adaptability of the metal material.