Abstract: The present disclosure discloses a method for detecting a natural frequency of a blade by a single blade tip timing sensor. In the method, two segments of displacement data vectors are subjected to dot product to obtain a product data vector after multiplication of corresponding serial numbers, the product data vector is subjected to low-frequency filtering, the filtered product vector is subjected to Hilbert transform to obtain an instantaneous phase, the instantaneous phase is subjected to discrete Fourier transform, an absolute value of a natural frequency difference between blades is extracted from amplitude frequency data, blades on a bladed disk are subjected to permutation and combination to obtain absolute values of the natural frequency differences between all the blades, a sum of the absolute values of the natural frequency differences between each blade and other blades is calculated.

Abstract: A fault detection method for a rotating machine based on sparse time synchronous averaging is disclosed, and the method includes: collecting a vibration signal and a rotating frequency or rotating frequency pulse signal of the rotating machine and performing analog-to-digital conversion to obtain the vibration signal and rotating speed information by a sensor; according to the type and number of detection components in the rotating machine, constructing a component-aware comb vector g based on the vibration signal and rotating speed information, wherein the type includes the gear, rotor and bearing; constructing a quasi-time synchronous average vector w based on the component-aware comb vector g; constructing a sparse time synchronous averaging model F by using the quasi-time synchronous average vector w; solving the sparse time synchronous averaging model F with an optimization solution algorithm to obtain a sparse spectrum and a reconstruction time signal.

Abstract: Device and methods for real-time polarization-dependent loss monitoring at coherent transceivers. In one embodiment, there is provided a method of monitoring a polarization dependent loss (PDL) of a signal during transmission through an optical communication link, the method comprising: receiving the signal by a coherent receiver, the received signal being subjected to one or more impairments in Amplifier Gain Control (AGC) mode, the one or more impairments including PDL; estimating an AGC gain effect of the AGC mode; compensating for the AGC gain effect in the received signal; determining the PDL from the compensated signal; and reporting the PDL.

Abstract: A sliced graphics processing unit (GPU) architecture in processor-based devices is disclosed. In some aspects, a GPU based on a sliced GPU architecture includes multiple hardware slices. The GPU further includes a command processor (CP) circuit and an unslice primitive controller (PC_US). Upon receiving a graphics instruction from a central processing unit (CPU), the CP circuit determines a graphics workload, and transmits the graphics workload to the PC_US. The PC_US then partitions the graphics workload into multiple subbatches and distributes each subbatch to a PC_S of a hardware slice for processing.

Abstract: A sliced graphics processing unit (GPU) architecture in processor-based devices is disclosed. In some aspects, a GPU based on a sliced GPU architecture includes multiple hardware slices. The GPU further includes a command processor (CP) circuit and an unslice primitive controller (PC_US). Upon receiving a graphics instruction from a central processing unit (CPU), the CP circuit determines a graphics workload, and transmits the graphics workload to the PC_US. The PC_US then partitions the graphics workload into multiple subbatches and distributes each subbatch to a PC_S of a hardware slice for processing.

Abstract: Methods of preparing and using a highly active blood coagulation factor XI mutant and a gene therapy/editing vector thereof and a recombinant/fusion protein thereof. The nucleotide sequence of the mutant is as shown in SEQ ID NOs: 1-6, and the amino acid sequence is as shown in SEQ ID NO: 7.

Abstract: The present disclosure provides a method and device for dynamic recognition of emotion based on facial muscle movement monitoring, including: obtaining muscle movement data on one side and continuous frame images on the other side; obtaining multiple emotional states related to emotions, associating each emotional state with its corresponding continuous frame images, associating each emotional state with the muscle movement data corresponding to the continuous frame images at the same location and at the same time, to form a training set, building an emotion recognition model; inputting the muscle movement data and continuous frame images obtained in real time into the emotion recognition model to obtain a corresponding emotional state. This method builds an emotion recognition model through muscle movement data and continuous frame image, and uses motion data to make up for the parts of small action images that cannot be collected, thereby obtaining accurate emotion detection results.

Abstract: A watch assembly method includes: processing a first bonding surface on a first connecting member, bonding a first laser adhesive layer on the first bonding surface and activating the first laser adhesive layer; processing a second bonding surface on a second connecting member, bonding a second laser adhesive layer on the second bonding surface and activating the second laser adhesive layer; fixing the second connecting member with the first connecting member preliminarily in such a manner that the first laser adhesive layer and the second laser adhesive layer face each other, and pressing the first connecting member and the second connecting member against each other until the first laser adhesive layer and the second laser adhesive layer are completely bonded and infiltrated.

Abstract: A method of dynamically displaying a three-dimensional image object in a volumetric display apparatus is provided. The method includes rotating a display plate about an axis to display a volumetric three-dimensional image; displaying a first three-dimensional image of a first three-dimensional image object according to first coordinates in a first image coordinate system in the volumetric display region; sensing a position or a movement of an external real-world object within a sensing zone; and displaying a second three-dimensional image of a second three-dimensional image object according to second coordinates in a second image coordinate system in the volumetric display region. The second three-dimensional image object is obtained by reorienting the first three-dimensional image object from an initial orientation to a target orientation; and the reorientation is correlated with a position or the movement of the external real-world object.

Abstract: The present disclosure generally relates to underwater user interfaces. In some embodiments, a method includes at an electronic device with a display and one or more input devices, receiving a first request to display a user interface for accessing a first function of the electronic device. In response to receiving the first request, and in accordance with a determination that the electronic device is under water, the method includes displaying a first user interface for accessing the first function. In response to receiving the first request, and in accordance with a determination that the electronic device is not under water, the method also includes displaying a second user interface for accessing the first function.

Abstract: A display module provided by this application includes a backlight module, a display panel, and a sealing structure. The backlight module includes a backplane and a backlight assembly. The backplate includes a bottom wall and side walls provided on side edges of the bottom wall. The bottom wall and the side walls enclose an accommodation space, the bottom wall has a hollow area, and the backlight assembly is disposed in the accommodation space. A sealing structure is connected with the bottom wall and seals the accommodation space, which can prevent water vapor, dust, and other impurities from entering the display module from an edge of the hollow area to cause wrinkle and deformation or damage to a light guide plate or film layers in the display panel.

Abstract: A data transmission method for to a data center including a first site and a second site is disclosed. According to the data transmission method, after obtaining a first data packet sent by a virtual machine at the first site, a switch at the first site identifies a service type of the first data packet, and determines routing information of the first data packet based on the service type of the first data packet; and after determining the routing information, the switch sends the first data packet based on the routing information, where the routing information is used to indicate a bearer link for transmitting the first data packet, and a link through which the first data packet is transmitted to the second site is the bearer link. In this way, the first data packet may be transmitted through a link that corresponds to the service type of the first data packet.

Abstract: A tidal current energy converter including an infinitely variable transmission (IVT) control system and a hybrid vertical axis wind (or water) turbine (VAWTs) apparatus. The hybrid VAWT apparatus includes a modified-Savonius (MS) rotor in the central region and a straight bladed H-type Darrieus rotor in the surrounding annular region. The IVT control system includes a nonlinear closed-loop control combined with an integral time-delay feedback control to adjust a speed ratio of the IVT. A speed ratio control for an IVT system involves a forward speed controller and/or a crank length controller for different speed ranges. The time-delay control is designed to reduce speed fluctuations of the output speed of an IVT with an accurate speed ratio. The speed ratio of an IVT with the disclosed control strategy can achieve an excellent tracking response for the desired constant output speed and reduce speed fluctuations of the output speed of an IVT by the time-delay feedback control.

Abstract: A salty taste enhancing peptide derived from dry-cured ham is provided, and the amino acid sequences thereof are Asp-Leu; Phe-Met-Ser-Ala-Leu-Phe, as shown in SEQ ID NO: 1; and His-Val-Arg-Arg-Lys, as shown in SEQ ID NO: 2. The salty taste enhancing peptide in the present disclosure is of small molecular weight, features easy separation and purification, has strong salty taste enhancing effect and simple sequences, and is easy to synthesize, therefore, the salty taste enhancing peptide can be applied to the fields of food, health products, medicine and biology, and is expected to replace salt substitute products currently available on the market.

Abstract: The application provides an AR-based information displaying method and an AR apparatus, an electronic device and a storage medium, applicable to the technical field of computers. The method comprises: acquiring voice information and a user image of a user; identifying the voice information and extracting user characteristics; and when the user image matches the user characteristics, displaying, by an AR displaying device, target information associated with the user at a display position corresponding to the user image, wherein the target information comprises at least one of user information and voice associated information.

Abstract: A coherent optical receiver, and an optical communication device and system, and relates to the field of optical communication. A polarization control component in the coherent optical receiver can deflect, driven by a feedback control circuit, a state of polarization of local oscillator light, and decompose the local oscillator light into two channels of light having equal or similar optical power. Therefore, the state of polarization of the local oscillator light is not deflected randomly and thereby coherent detection is not affected. Moreover, an azimuth of a half-wave plate device in the polarization control component can be deflected continuously, allowing continuous tracking and adjustment for the state of polarization of the local oscillator light.

Abstract: A high-activity blood coagulation factor XI mutant Ala570Thr (A570T), having nucleotide sequences as shown in SEQ ID NOs: 1-4 and an amino acid sequence as shown in SEQ ID NO: 5, is provided. The mutant is resistant to a physiological inhibitor thereof after being activated from a zymogen state to an active enzyme. Therefore, the mutant has a very high blood coagulation activity and a stronger catalytic ability for a non-physiological substrate; and the mutant is applied to the treatment of hemorrhagic diseases, and has good prospects in terms of gene therapy, gene editing and recombinant protein replacement treatments.

Abstract: An image processing method includes determining a display mode; processing, according to an image processing manner corresponding to the display mode, original image data to obtain target image data; and transmitting the target image data to an image display terminal, so that the image display terminal performs image display according to a scanning display manner corresponding to the display mode, a resolution of the target image data is less than or equal to that of the original image data, and the target image data carries indication information of the display mode.

Abstract: An image processing method is provided, the method includes: performing area division on an input image to obtain a plurality of sub-images; determining a part of the plurality of sub-images as an image to be output; stitching respective sub-images of the image to be output to obtain a stitched image; and transmitting the stitched image, wherein the stitched image is smaller than the input image. An image jointing method is provided, the method includes: receiving a stitched image obtained by the image processing method according to the present disclosure; extracting respective sub-images of an image to be output from the stitched image; and jointing the respective sub-images to obtain a display image, wherein the jointing the respective sub-images refers to obtaining the display image by an operation inverse to a stitching process of stitching the respective sub-images to obtain the stitched image.

Abstract: An image processing method includes determining a display mode; processing, according to an image processing manner corresponding to the display mode, original image data to obtain target image data; and transmitting the target image data to an image display terminal, so that the image display terminal performs image display according to a scanning display manner corresponding to the display mode, a resolution of the target image data is less than or equal to that of the original image data, and the target image data carries indication information of the display mode.