Abstract: A method may include receiving current environment condition information associated with an extended reality device; receiving historical environment condition information associated with the extended reality device; based on current environment condition information and the historical environment condition information, determining one or more adjustments to meet a performance threshold for rendering objects on the an extended reality device or using the an extended reality device; and sending instructions to implement the one or more adjustments to meet the performance threshold for rendering objects on the extended reality device or using the extended reality device.

Abstract: This disclosure relates to the field of optical communication technology and provides a high-isolation light source filling device in a wavelength division multiplexing system and method thereof. The light source filling device comprises a multiplexing WSS and demultiplexing WSS, wherein a filling light source is arranged on an output port carrying no service, of the demultiplexing WSS, and the filling light source guides filling light into the output port carrying no service; the filling light is transmitted through a second common port of the demultiplexing WSS or a light splitting device arranged on a first common port of the demultiplexing WSS, and the filling light transmitted through the demultiplexing WSS is guided into an input port carrying no service, of the multiplexing WSS. In this disclosure, it achieves the filling of high-isolation wide-spectrum noise light, and on the other hand, it does not add additional filtering devices.

Abstract: A memory system, an operation method thereof and a readable storage medium are provided according to examples of this disclosure. The memory system including: a memory device including a plurality of memory blocks, each of which including a plurality of word lines and a plurality of memory cells coupled to the plurality of word lines; a memory controller coupled to the memory device and configured to: acquire a read retry voltage with both a first-type read retry table and a second-type read retry table; control the memory device to perform a read retry operation with the read retry voltage.

Abstract: Provided is a recombinant protein, which contains a nerve growth factor (NGF) protein variant and a heterologous signal peptide linked to the NGF protein variant. Further provided are a combination containing an mRNA encoding the recombinant protein and a delivery vector, and the use thereof in the treatment of toxic/hereditary/metabolic peripheral neuropathy, nerve regeneration repair, and/or central nervous system degenerative diseases.

Abstract: Disclosed herein are hydrogel compositions comprising a triblock copolymer having a formula A-B-A, wherein A is a polycaprolactone (PCL) block or a polyvalerolactone (PVL) block and B is a polyethylene glycol (PEG) block. Also disclosed are methods of making a hydrogel comprising providing a photoinitiator and a triblock copolymer having a formula A-B-A, wherein the triblock copolymer comprises one or more ethylenically unsaturated moieties; and photocrosslinking the triblock copolymer, thereby forming a hydrogel.

Abstract: Systems, methods and media of optimization of temporary read errors (TRE) in three-dimensional (3D) NAND memory devices are disclosed. A disclosed memory device can comprises a plurality of memory cells arranged as an array of NAND memory strings, a plurality of word lines couple to the memory cells, and a controller. The controller is configured to determine whether a next read operation is a first read operation of the memory device after recovering from an idle state, and In response to a positive result of the determination, control the memory device to perform an extended pre-phase of the first read operation before a read-phase of the first read operation.

Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: Disclosed are a lithium aluminum hydrotalcite-based solid electrolyte film, a preparation method and use thereof, and a lithium battery including the same. The lithium aluminum hydrotalcite-based solid electrolyte film includes: a solid electrolyte film substrate formed by an organic polymer, and a lithium salt and a lithium aluminum hydrotalcite uniformly dispersed in the solid electrolyte film substrate, wherein the lithium aluminum hydrotalcite has a content of 50 wt % to 80 wt %, based on a total mass of the solid electrolyte film substrate after removal of the lithium salt; and the organic polymer includes one or more selected from the group consisting of polyethylene glycol diacrylate, polyethylene oxide, polypropylene carbonate, and polyvinylidene fluoride-hexafluoropropylene copolymer.

Abstract: A computer-implemented method for treating post-modeling data includes computing, sequentially for each category of a feature, a category importance (CI) value. The CI value is based on a model accuracy change when records of a category being examined are reassigned to a remaining set of categories of the feature according to a cumulative distribution of records among the remaining set of categories of the feature, wherein the remaining set of categories include all categories of the feature, except for the category being examined. A post-modeling category is performed to merge of each category having the CI value less than a CI value threshold.

Abstract: The present disclosure provides a colloidal gold immunochromatographic joint inspection card for diquat and paraquat in the field of on-site rapid detection, as well as a preparation method and application. The joint inspection card includes a PVC base plate, where the PVC base plate is sequentially provided with a sample pad, a gold-labelled pad, a nitrocellulose membrane and a water-absorbing pad along the chromatographic direction; the gold-labelled pad is adsorbed with an antibody solution labeled with paraquat colloidal gold and an antibody solution labeled with diquat colloidal gold; the nitrocellulose membrane is provided with a T1 detection line, a T2 detection line and a quality control line along the chromatographic direction; and an area of the T1 detection line is coated with paraquat complete antigen, an area of the T2 detection line is coated with diquat complete antigen, and the quality control line is coated with goat anti-mouse IgG.

Abstract: A method and apparatus comprising computer code configured to cause a processor or processors to obtain, from a bitstream, a mesh representing an encoded volumetric data of at least one three-dimensional (3D) visual content, and decode the encoded volumetric data based on displacement vectors of vertices of the mesh, and the displacement vectors are based on a square root of three subdivision in which faces of the mesh are iteratively subdivided in a manner in which a number of subdivided faces resulting from subdividing the mesh in an iteration is less than four times a number of faces from before subdividing the mesh in the iteration.

Abstract: A high temperature resistant mannanase mutant, comprising at least one mutation site among D49C/I/N, G58D/E/S, H90L, T99Y, K120Y, N124P, T130D/N/P/Q/R/S, Y132F, S136M, S140L/K, T148K, F206Y, A212N/S/P, L257F, S263R, D268A/E/G/P, G273P, S302M/E, S306M/Q, T315P, T353L/F, D360E/N/K, and A362R. The high temperature resistant mannanase mutant has heat resistance significantly higher than the wild type mannanase, and can be widely used in the field of feeds.

Abstract: Aspects of the subject disclosure may include, for example, capturing a first depiction of an exhibit environment, wherein the first depiction of the exhibit environment comprises an image of at least one artifact and an image of at least one interface element, and wherein the at least one interface element is located in the exhibit environment at a first location relative to the at least one artifact; obtaining a first user profile of a first user, wherein the first user profile comprises at least one first preference of the first user, and wherein the first user is located in a first remote environment; and facilitating a presenting of a first modified version of the first depiction of the exhibit environment in the first remote environment, wherein the first modified version moves the image of the at least one interface element to a second location relative to the at least one artifact, wherein the second location is different than the first location, and wherein the second location is selected based upon

Abstract: The present disclosure provides a method for topography simulation of a physical structure under a topography-changing process. The method includes initializing a voxel mesh as a three-dimensional (3D) representation of a physical structure by a central processing unit (CPU), generating a batch of particles, simulating a flight path of one of the particles with a ray-tracing method by a parallel processing thread in a graphics processing unit (GPU), identifying a surface normal of a voxel unit in the voxel mesh that intersects the flight path by the parallel processing thread in the GPU, passing parameters describing the one of the particles hitting the voxel mesh from the GPU to the CPU, determining a surface reaction between the one of the particles and the voxel unit by the CPU, and updating the voxel mesh based on the determining of the surface reaction.

Abstract: Some embodiments of the disclosure provide a cooperative positioning system and method for an unmanned underwater vehicle (UUV) cluster based on ranging and information interaction. In some examples, the cooperative positioning system includes one master UUV, multiple slave UUVs, and a cooperative positioning apparatus. In some examples, the cooperative positioning method includes following steps. A master UUV and a slave UUV perform internal clock disciplining. The master UUV periodically packages a location of the master UUV and a covariance matrix of location estimation into a cooperative positioning data packet and broadcasts the cooperative positioning data packet to slave UUVs of a cluster. The slave UUV receives the cooperative positioning data packet. A cooperative positioning apparatus of the salve UUV constructs a state and a measurement equation according to data. The cooperative positioning apparatus calculates and obtains a cooperative positioning result by using an extended Kalman filter (EKF).

Abstract: Embodiments of the present disclosure provide systems and methods for implementing an intelligent vehicle-collision simulation sandbox and intelligently analyzing behaviors of surrounding objects with a current vehicle to simulate possible collisions of the current vehicle and surrounding objects and display intelligently calculated collision probabilities of the surrounding objects.

Abstract: A generator fault detection method based on the characteristics of air gap magnetic flux density includes the following steps: S1: installing detection devices on a generator and building a test platform; S2: obtaining an air gap magnetic flux density signal through the detection devices; S3: transforming a time domain signal of the magnetic flux density into a frequency domain signal by using a fast Fourier transform; S4: judging if the generator has an air gap eccentricity or a stator inter-turn short circuit fault through the comparison of time domain and frequency domain; S5: obtaining a value of air gap magnetic flux density by calculation, selecting and then comparing a root mean square value of magnetic flux density under different working conditions with the root mean square value of magnetic flux density under normal condition to determine a fault degree.

Abstract: The present invention discloses a method for detecting surface flatness of a precast beam based on a three-dimensional point cloud model, including the following steps: (1) performing, according to a specific geometry of a three-dimensional point cloud model of a target component in a three-dimensional coordinate system, coarse calibration and fine calibration on the model sequentially to determine a spatial rotation matrix and perform point cloud coordinate calibration; (2) determining normal vectors at positions of points of the three-dimensional point cloud model of the component according to a principal component analysis method and a K-nearest-neighbor principle, so that a to-be-detected surface is segmented and extracted by defining a normal vector direction and a coordinate interval; and (3) iteratively searching for an optimal reference plane according to a form relationship between the to-be-detected surface and the three-dimensional coordinate system and calculating flatness of the surface.

Abstract: A technique for encoding video for machine vision and human/machine hybrid vision, including receiving at a hybrid codec, input including at least one of video or image data, the hybrid codec including a first and second codec wherein the first codec is a traditional codec designed for human consumption and the second codec is a learning-based codec designed for machine vision; compressing the input using the first codec, wherein the compressing includes down-sampling the input using a down-sampling module and up-sampling the compressed input using an up-sampling module producing a residual signal; quantizing the residual signal to obtain a quantized representation of the input; entropy encoding the quantized representation of the input using one or more convolutional filter modules; and training one or more networks using the entropy encoded quantized representation.

Abstract: The present disclosure provides systems, methods and media of optimization of temporary read errors (TRE) in three-dimensional (3D) NAND memory devices. The (3D) NAND memory devices comprises a plurality of memory cells arranged as an array of NAND memory strings, a plurality of word lines couple to the memory cells, and a controller. The controller is configured to determine whether a next read operation is a first read operation of the memory device after recovering from an idle state, and in response to a positive result of the determination, control the memory device to perform an extended pre-phase of the first read operation before a read-phase of the first read operation.