Abstract: A preparation method and an application method of a Ni—Co bimetallic catalyst for dry reforming of methane are provided, which relate to the field of catalytic material preparation technologies. The preparation method uses Ni and Co as active components of a catalyst for dry reforming of methane, alkaline earth metal salt as CO2 adsorbent, and uses an immersion method to prepare a Ni—Co bimetallic catalyst with high performance. The prepared catalyst not only effectively overcomes a problem of poor stability of Ni-based catalysts, but also promotes the adsorption of CO2 and improves the efficiency of dry reforming of methane. The preparation method of the Ni—Co bimetallic catalyst is simple and cost-effective, and exhibits excellent catalytic performance and stability in dry reforming reaction of methane.

Abstract: Provided are a display panel and a display device. The display panel includes a photosensitive module and a touch electrode line, where the photosensitive module includes a photosensitive transistor, a detection signal is applied to a first electrode of the photosensitive transistor, the photosensitive transistor is configured to generate a photocurrent signal according to the detection signal and illumination, and the touch electrode line is configured to transmit a touch signal. A driving stage of the display panel includes display stages and vertical intermittent stages, the display stages and the vertical intermittent stages are arranged alternately, and the vertical intermittent stages include touch stages. In multiple touch stages, the detection signal has a first voltage, and in at least one of the display stages, the detection signal has a second voltage, the second voltage is not equal to the first voltage.

Abstract: Embodiments of the application provide a battery cell, a battery and an electric apparatus. The battery cell comprises a first case, a first electrode assembly, a second case, a second electrode assembly, and an end cover assembly. The first case is provided with a first opening. The first electrode assembly is accommodated within the first case. The second case is provided with a second opening opposite the first opening. The second electrode assembly is accommodated within the second case. The end cover assembly covers the first opening and the second opening, the end cover assembly includes a connecting assembly, and the connecting assembly is configured to electrically connect the first electrode assembly and the second electrode assembly. The first case and the second case, which are sequentially arranged, can increase the overall size of the battery cell, thereby increasing the space utilization of the battery cell in the battery.

Abstract: The present disclosure relates to the technical field of solid engine burning rate test, and provides a method and system for measuring the burning rate of a propellant based on multi-channel ultrasonic waves. The method includes the following steps: collecting echo signals and corresponding noise signals of each ultrasonic channel, and pre-processing same; and finding a period of two adjacent echoes with the maximum amplitude difference, and the maximum peak of an echo period of current frame. In the present disclosure, the accuracy of echo moment is improved, and the burning rate is accurately measured under high noise environment.

Abstract: A brassiere includes a front piece and a back piece bonded to the front piece, with two cup pads fixed at positions of cups between the front piece and the back piece, wherein an adjustment member and an adjustment device connected to the adjustment member are further provided within the cups, the adjustment member being provided so as to be able to change its own volume and/or position under the control of the adjustment device. The brassiere improves the practicality of the brassiere by changing sizes and positions of the cups.

Abstract: Systems, devices, and methods are disclosed for fabricating a hybrid contact lens product having a lens insert embedded at a precisely controlled location within a lens body. A mold engagement and support base engages and retains a lens forming mold in a substantially fixed position. An insert placement and positioning device includes an insert pickup head with a contact face configured for releasable engagement of the lens insert and at least one suction opening in the contact face for applying suction to engage the insert on the contact face. A positioning housing interacts with the mold and/or the support base to provide precise locational positioning of the lens insert within the mold. A lens body forming material is delivered to the mold to encapsulate the lens insert.

Abstract: The present disclosure belongs to the field of photoacoustic signal detection, and specifically relates to a quantum-enhanced all-optical photoacoustic signal detection device and method. The problem of low sensitivity of photoacoustic signals based on interference measurement is solved, and high-sensitivity detection of photoacoustic signals generated by living organisms including human bodies can be achieved. A degenerate optical parametric oscillator based on a first-type phase matching crystals is used for preparing a vacuum squeezed state light field, a coherent control technology is used for locking the squeezed angle to obtain the quadrature phase vacuum squeezed state, the prepared quadrature phase vacuum squeezed state light field is injected into the vacuum channel of a Michelson interferometer, and a balanced homodyne detection mode is used for achieving detection of the quantum-enhanced photoacoustic signals.

Abstract: This application discloses a method for positioning a target audio signal by a computer device. The method includes: performing echo cancellation on the audio signals collected in a plurality of directions in a space, the audio signals comprising a target-audio direct signal; obtaining weights of a plurality of time-frequency points in the echo-canceled audio signals, a weight of each time-frequency point indicating a relative proportion of the target-audio direct signal in the echo-canceled audio signals at the time-frequency point; obtaining a weighted audio signal energy distribution of the audio signals in the plurality of directions by using the weights of the plurality of time-frequency points in the echo-canceled audio signals; and obtaining a sound source azimuth corresponding to the target-audio direct signal in the audio signals by using the weighted audio signal energy distribution of the audio signals in the plurality of directions.

Abstract: A battery cell includes a shell, an electrode assembly, and an insulator; the shell includes a bottom wall and a side wall disposed at a periphery of the bottom wall; the electrode assembly is accommodated in the shell; the insulator includes a first insulating portion and a second insulating portion that are connected, the first insulating portion is used for separating the electrode assembly from the bottom wall, the first insulating portion is provided with a through hole, and the second insulating portion is used for separating the electrode assembly from the side wall; and the insulator further includes a folding portion, which is disposed on the first insulating portion in a foldable manner, and is configured to be stacked with the first insulating portion to cover the through hole.

Abstract: Provided are a channel state information feedback method and apparatus, and a storage medium. The channel state information feedback method comprises: calculating, by a first communication node, actual channel state information, and transmitting, by the first communication node, first-type signaling to a second communication node, wherein the first-type signaling comprises a channel state information report, the channel state information report comprises precoding information; in a case where a resource for transmitting the first-type signaling is less than a resource required for transmitting the actual channel state information, discarding, by the first communication node, part of the precoding information in the actual channel state information according to a priority order.

Abstract: An antenna, an antenna array and an electronic device are provided and belong to the field of communication technology. The antenna includes a first substrate, a second substrate, and a tunable dielectric layer. The first substrate includes a first dielectric substrate and a first electrode layer on a side of the first dielectric substrate close to the tunable dielectric layer; the second substrate includes a second dielectric substrate and a second electrode layer on a side of the second dielectric substrate close to the tunable dielectric layer. The second electrode layer includes a signal electrode, and at least one first branch and at least one second branch electrically connected to the signal electrode; the at least one first branch and the at least one second branch are respectively on two sides of an extending direction of the signal electrode.

Abstract: A phosphorus-containing compound is represented by the formula (I): The phosphorus-containing compound has excellent biodegradability and oxidation resistance, and is suitable for promoting biodegradation of lubricating oil product.

Abstract: A color filter substrate, a manufacturing method thereof, and a display panel are disclosed. The color filter substrate includes a substrate, a black matrix layer, a first filler, and a positioning mark. The black matrix layer is arranged on the substrate, and a groove is defined in the black matrix layer and arranged around a display area of the substrate. The filler is arranged inside the groove. The positioning mark is arranged inside the groove, and has a different color from that of the first filler.

Abstract: In one set of embodiments, a hypervisor of a host system can receive a packet processing program from a virtual network interface controller (NIC) driver of a virtual machine (VM) running on the hypervisor. The hypervisor can then attach the packet processing program to a first execution point in a physical NIC driver of the hypervisor and to a second execution point in a virtual NIC backend of the hypervisor, where the virtual NIC backend corresponds to a virtual NIC of the VM that originated the packet processing program.

Abstract: A solar cell includes a substrate having a front surface and a back surface opposite to the front surface; a first passivation layer, a second passivation layer and a third passivation layer sequentially formed on the front surface of the substrate and in a direction away from the substrate; where the first passivation layer includes a dielectric material; the second passivation layer includes a first SiuNv material, and a value of v/u is 1.3?v/u?1.7; and the third passivation layer includes a SirOs material, and a value of s/r is 1.9?s/r?3.2; and a tunneling oxide layer and a doped conductive layer sequentially formed on the back surface of the substrate and in a direction away from the back surface; the doped conductive layer and the substrate are doped to have a same conductivity type.

Abstract: This patent discloses a full-rotation dash cam camera assembly relevant to the field of dash cam technology. It features a dual rotation mechanism allowing two subsidiary camera units, located on either side of a main body, to freely rotate from 0° to 360° vertically and 0° to 180° horizontally. This hemispherical range of motion, in conjunction with the main body, enables comprehensive capture of images from specific locations inside or outside the vehicle, providing all-around monitoring to meet the comprehensive visual requirements of the driver.

Abstract: Disclosed herein are methods and kits for identifying a subject as having liver cancer. Also provided herein are methods and kits for determining the prognosis of a subject having liver cancer and for determining the progression of liver cancer in a subject.

Abstract: An encoding method includes binarizing a chrominance prediction mode of an image block of an image that is permitted to use a CCLM and/or regular intra-frame chrominance prediction mode to obtain a bit string including adjacent bits. The CCLM includes first, second, and third modes, a second mode, and a third mode, the regular intra-frame chrominance prediction mode being other intra-frame chrominance prediction modes except CCLM. A first bit of the adjacent bits indicates whether CCLM is used according to whether a value there of is 1. A second bit indicates whether to use the first mode when the first bit indicates to use CCLM. A third bit indicates whether the second or third mode is used when the second bit indicates the first mode is not used. The method further includes using mutually independent probability models to respectively encode the first bit and the second bit.

Abstract: An electrophoretic medium comprises a fluid and first, second, third and fourth types of particles (W, Y, R, B) having four different colors. The first and third particles have charges of one polarity and the second and fourth particles charges of the opposite polarity; the first particles have a greater zeta potential or electrophoretic mobility than the third particles, and the second particles a greater zeta potential or electrophoretic mobility than the fourth particles. One particle is white (W), one non-white particle (R) is partially light-transmissive, and the remaining two non-white particles (B, Y) are light-reflective. A third light-reflective particle (G) may be added to create a five particle medium.