Abstract: The present disclosure a camera optical lens comprising, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, and a fifth lens having a negative refractive power, the camera optical lens satisfying conditions of 0.50?R5/R6?0.75, 0.80?f1/f?1.00, 0.80?d3/d4?1.15, 1.65?d7/d8?2.50 and 0.00?R4. The camera optical lens can achieve excellent optical characteristics while meeting the designing requirement for having a large aperture and being wide-angle and ultra-thin.

Abstract: The present invention discloses a flexible display screen and a display device. The flexible display screen includes: a flexible display panel, a first flexible electromagnetic shielding layer and a bottom film disposed in that order on a side, opposite to a light-emitting side, of the flexible display panel; the organic electroluminescent flexible display panel has a bending area, and the bending area is provided with signal lines; the flexible display screen further includes: a second flexible electromagnetic shielding layer disposed on a light-emitting side of the flexible display panel and covering the signal lines, and a colloidal insulating layer covering the second flexible electromagnetic shielding layer; and the materials of the first flexible electromagnetic shielding layer and the second flexible electromagnetic shielding layer are both conductive materials with fluidity.

Abstract: Embodiments of the disclosure provide methods, apparatuses, and electronic devices for processing product traceability chain information. The method comprises: determining one or more processing stages associated with a traceability chain of a product; acquiring video information associated with each of the one or more processing stages of the traceability chain; and splicing the video information associated with each of the one or more processing stages to generate a traceability video for the product.

Abstract: A method includes receiving tester configuration data, test pattern data, and tester operation data; configuring a circuit for performing a designated test evaluation; generating a stimulus waveform; converting the stimulus waveform to an analog stimulus signal; transferring the analog stimulus signal to a first terminal of a MTJ DUT at reception of a trigger timing signal; generating time traces based on the trigger timing signal; generating a response signal at a second terminal of the MTJ DUT and across a termination resistor as the analog stimulus signal is transferred through the MTJ DUT; converting the response signal to a digitized response signal indicating its voltage amplitude; and performing the designated test evaluation and analysis function in the configurable circuit based on voltage amplitudes and time values of the stimulus waveform, the digitized response signal, and the timing traces.

Abstract: The invention discloses a robotic dexterous hand including a plurality of finger mechanisms, the finger mechanisms comprises: an actuator; a connecting element with one end fixed to the actuator; a plurality of fingers including a plurality of knuckles, the knuckle includes a fixed knuckle positioned at the other end of the connecting element, the fixed knuckles are arranged in parallel and jointly form a palm of the robotic dexterous hand; wherein the actuator drives the flexion of the fingers to perform the gripping of a target object. The fingers and the palm are built from the multiple knuckles having a same structure. Design is required merely for the structure of a single knuckle, the need for discretely designing the structure of the fingers and that of the palm is obviated, thus greatly reducing the types of components, at the same time, simplifying the structure, and favoring the production and management.

Abstract: A signal demodulation device includes an IQ mixer, a differential element and a signal processor. The IQ mixer is configured to output a first mixed signal and a second mixed signal. The differential element is electrically connected to the IQ mixer for receiving the first and second mixed signals and configured to differentiate the first and second mixed signals and output a first derivative signal and a second derivative signal. The signal processor is electrically connected to the differential element for receiving the first and second derivative signals and configured to demodulate the first and second derivative signals and output a first demodulated signal.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; a seventh lens; and an eighth lens. The camera optical lens satisfies following conditions: 5.00?f1/f?6.50; f2?0; and 1.55?n6?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n6 denotes a refractive index of the sixth lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens; a third lens; a fourth lens; a fifth lens; a sixth lens; a seventh lens; and an eighth lens. The camera optical lens satisfies following conditions: 1.95?f1/f?3.20; f2?0; and 1.55?n7?1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n7 denotes a refractive index of the seventh lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens sequentially including, from an object side to an image side, first to seventh lenses. The camera optical lens satisfies following conditions: 1.80?f4/f?5.00; ?1.50?f6/f7??1.00; and 1.20?d8/d9?1.60, where f denotes a focal length of the camera optical lens; f4, f6 and f7 denote focal lengths of the fourth, sixth and seventh lenses, respectively; d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of the fifth lens; and d9 denotes an on-axis thickness of the fifth lens. The camera optical lens according to the present disclosure can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

Abstract: The present specification discloses a data processing method, apparatus, and equipment. The method includes: obtaining an image sent by a user, wherein the image to is collected by the user for a merchant; identifying carbon-saving behavior of the merchant, comprising processing the image using a trained image recognition model; and determining, based on the carbon-saving behavior, a value representing an amount of carbon saved by the merchant.

Abstract: A multiple-target vital sign detector includes a self-injection-locked oscillator (SILO), a chirp up/down converter, a frequency demodulator and a multiple-target vital sign processor. The chirp up/down converter performs conversion from an oscillation signal generated by the SILO to a frequency-modulated continuous wave (FMCW) signal to detect an area and from a received FMCW signal reflected from the area to an injection signal, while the SILO is injected with the injection signal to enter a self-injection-locked state. The locations and vital signs of multiple subjects are extracted from the oscillation signal using the frequency demodulator and the multiple-target vital sign processor. The objective of using the SILO is to improve the sensitivity of the FMCW detection process so as to more effectively distinguish the vital signs of multiple subjects at different locations.

Abstract: Some embodiments of the present disclosure provide manufacturing methods for a wheel rim, a spoke and a steel wheel and a steel wheel formed by the methods. The methods includes that: a wheel rim/a spoke blank is heated in a heating furnace, and the heated wheel rim/the heated spoke blank is transferred onto a hot press. A temperature of the wheel rim/the spoke blank being required to be kept above a required temperature in a process of transferring the heated wheel rim/the heated spoke blank to the hot press. Then the wheel rim/the spoke blank is formed in the hot press. A formed wheel rim and a formed spoke are connected to product a steel wheel.

Abstract: Circuits and methods for programming a MTJ stack of an MRAM cell minimizes a ferromagnetic free layer or pinned layer polarization reversal due to back-hopping. The programming begins by applying a first segment of the segment of the write pulse at a first write voltage level for a first time period to program the MTJ stack. A second segment of the segment of the write pulse at a second write voltage level that is less than the first write voltage level is applied to the magnetic tunnel junction stack for a second time period to correct the polarization of the MTJ when the MTJ stack has reversed polarization during the first time period. The second segment of the segment of the write pulse may be a ramp, or multiple ramps, or have a quiescent period between it and the first segment of the write pulse.

Abstract: The invention relates to a display panel, a preparation method thereof and a display device. The display panel comprises: a substrate comprising a display area and a non-display area at least positioned on one side of the display area, one or more via holes are formed in the non-display area; a circuit layer positioned on one side of the substrate and comprising a plurality of traces which extend from the display area of the substrate to the non-display area; and bonding pads positioned on one side of the substrate away from the circuit layer, an orthographic projection of the bonding pads on the substrate covers an orthographic projection of the one or more via holes on the substrate, and the circuit layer is connected with the bonding pads through the one or more via holes.

Abstract: An image processing method includes: performing feature-extracting processing on a plurality of images in an image data set to obtain image features respectively corresponding to the plurality of images; performing clustering processing on the plurality of images based on the obtained image features to obtain at least one cluster, herein images in a same cluster include a same object. A distributed and parallel manner is adopted to perform the feature-extracting processing and at least one processing procedure of the clustering processing.

Abstract: The present invention relates to the technical field of optical lens and discloses a camera optical lens satisfying following conditions: ?0.50?f1/f2??0.35; 5.00?f3/f?14.00; ?3.10?(f2+f5)/f??2.40; 3.00?(R3+R4)/(R3?R4)?4.00; 1.20?(R7+R8)/(R7?R8)?1.30; 0.25?(R9+R10)/(R9?R10)?0.65; where f denotes a focal length of the camera optical lens; f1, f2, f3 and f5 respectively denote a focal length of the first, second, third and fifth lenses; R3, R7 and R9 respectively denote a curvature radius of an object-side surface of the second, fourth and fifth lenses; R4, R8 and R10 respectively denote a curvature radius of an image-side surface of the second, fourth and fifth lenses.

Abstract: Provided is a multiplex PCR amplification method for identifying an unknown biological sample suspected to be from a human. The method comprises the following steps: 1) acquiring an unknown biological sample suspected to be from a human and which is to be detected; 2) directly adding said unknown sample or nucleic acid extracted from said unknown sample to a premixed PCR reagent; 3) running a PCR amplification program to conduct a multiplex PCR amplification reaction; and 4) detecting and analyzing PCR amplification products, wherein the premixed PCR reagent contains primers specific to human genetic markers and primers specific to nuclear chromosomal genes of non-human species. Also provided is a multiplex PCR amplification kit for species and human individual recognition and identification of an unknown biological sample.

Abstract: A magnetic tunnel junction (MTJ) is disclosed wherein a free layer (FL) interfaces with a first metal oxide (Mox) layer and second metal oxide (tunnel barrier) to produce perpendicular magnetic anisotropy (PMA) in the FL. In some embodiments, conductive metal channels made of a noble metal are formed in the Mox that is MgO to reduce parasitic resistance. In a second embodiment, a discontinuous MgO layer with a plurality of islands is formed as the Mox layer and a non-magnetic hard mask layer is deposited to fill spaces between adjacent islands and form shorting pathways through the Mox. In another embodiment, end portions between the sides of a center Mox portion and the MTJ sidewall are reduced to form shorting pathways by depositing a reducing metal layer on Mox sidewalls, or performing a reduction process with forming gas, H2, or a reducing species.

Abstract: A wireless audio output device including a first audio output unit and a second audio output unit is provided. The wireless audio output device establishes a wireless link with an audio source, which outputs a first original audio data and a second original audio data. The first and the second audio output units simultaneously output and play the first and the second original audio data. When the first audio output unit successfully receives the first original audio data but the second audio output unit fails to receive the second original audio data, the first audio output unit drops the received first original audio data, and the first and the second audio output units generate a first concealment audio data and a second concealment audio data, respectively, by using a PLC algorithm and play the first concealment audio data and the second concealment audio data, respectively.

Abstract: The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: ?5.00?f1/f2??1.70; and 2.00?R3/R4?20.00. The camera optical lens can achieve a high optical imaging performance while obtaining a low TTL.