Abstract: Systems, devices, and techniques for performing wavelength division multiplexing or demultiplexing using one or more metamaterials in an optical communications systems are described. An optical device may be configured to shift one or more phase profiles of an optical signal using one or more stages of metamaterials to multiplex or demultiplex wavelengths of optical signals. The optical device may be an example of a stacked design with two or more stages of metamaterials stacked on top of one another. The optical device may be an example of a folded design that reflects optical signals between different stages of metamaterials.

Abstract: This application provides a module tray and a battery production device. The module tray includes: a tray body; a reference member mounted on the tray body and configured for supporting and positioning a battery module in a first direction; a sliding member slidably mounted on the tray body along the first direction and configured to clamp the battery module in cooperation with the reference member; and an adjustment mechanism connected to the sliding member, where the adjustment mechanism is configured to drive the sliding member to move along the first direction and lock a position of the sliding member, and the adjustment mechanism is mounted on the tray body.

Abstract: A method for manufacturing polyurethane using raw materials consisting of polyol, isocyanate, water, and other additives, characterized in that, replacing the amount of water partially among the above raw materials and adding aldehyde compounds as a new additive when manufacturing polyurethane foam. A sequential use of blowing agents is employed by reducing the amount of water used as a blowing agent in the manufacturing process of polyurethane foam, and instead, employing aldehyde compounds and/or Diels-Alder reaction products of aldehyde compounds as initial raw materials.

Abstract: The present disclosure discloses a data read and write method.

Abstract: A non-horizontal folding mask is provided. A breathable region of a mask body is provided with at least one non-horizontally extended folding portion; and the folding portion is a folding and breathing filtration layer. During use, unfolding the folding portion can increase an area of the breathable region of the mask body to improve the filtering effect, and can accommodate and buffer more exhaled gas to effectively prevent escape of the gas from an upper end of a nose and a chin to further improve the filtering effect. The non-horizontally extended folding portion can support a breathing chamber formed by unfolding the mask body overall, preventing collapse and expansion of the breathing chamber in the breathing process to avoid gas leakage.

Abstract: Disclosed herein are articles with scattering regions configured to provide relatively low sparkle with minimal color artifacts. The scattering regions can be a portion of a surface of the article comprising a plurality of first regions disposed at a first height and a plurality of second regions disposed at a second height. The scattering regions are designed in the Fourier domain and constructed such that the article exhibits a radial power spectral density comprising a first range of scattering angles in which the radial PSD increases with an increase in a scattering angle of light relative to a specular direction, a peak angle ?peak where the radial PSD comprises a peak value, and a second range of scattering angles at angles greater than ?peak in which the radial PSD rapidly decreases with increasing scattering angle.

Abstract: The embodiments of the present application relate to the technical field of wireless communications. Provided are a channel information feedback method, and an electronic device and a computer-readable medium. The channel information feedback method comprises: performing channel estimation according to a first pilot signal sent by a first communication node, so as to acquire first channel information; according to the first channel information, determining a codebook set for quantized channel feedback; selecting an optimal codeword from the codebook set, wherein the optimal codeword is used for quantitatively characterizing the first channel information; and feeding back target instruction information to the first communication node, wherein the target instruction information is used for instructing the first communication node to determine the optimal codeword, and codewords in the codebook set conform to a corresponding model.

Abstract: A high-conductivity sulfur-based positive electrode material for a secondary battery and a secondary battery are provided. The sulfur-based positive electrode material is formed by evenly mixing highly isotactic polyacrylonitrile as a precursor with elemental sulfur and then heating to undergo a chemical reaction. The highly isotactic polyacrylonitrile is synthesized from an acrylonitrile monomer by means of a free radical polymerization or inclusion polymerization reaction under the action of a template agent.

Abstract: Provided are a micro-display unit and a display panel. A first epitaxial structure and a second epitaxial structure of the micro-display unit are stacked; and a light-emitting element formed by the first epitaxial structure and a light-emitting element formed by the second epitaxial structure are connected in series. A first conductive contact portion is located on one side of the first epitaxial structure, and when the first epitaxial structure and the second epitaxial structure are aligned and bonded, the first epitaxial structure and the second epitaxial structure are directly bonded through a bonding layer, then a first via hole is formed at the position corresponding to a first conductive contact portion, and a second via hole corresponding to a connection electrode is formed in the second epitaxial structure.

Abstract: Provided herein are methods of preventing, reducing, ameliorating, mitigating, inhibiting, treating and/or reversing a neurodevelopmental disorder related to prenatal maternal immune activation in an individual in need thereof comprising administering to said individual an agent that increases the level of epoxy-fatty acids wherein said individual experienced maternal immune activation one or more times during gestation. Also provided herein are methods of preventing, reducing, ameliorating, mitigating, inhibiting treating and/or reversing schizophrenia or autism spectrum disorder an individual comprising administering to said individual an agent that increases the level of epoxy-fatty acids.

Abstract: The invention belongs to the technical field of wind tunnel simulation, and particularly relates to a multi-physics field coupling environment simulation device, which comprises a base, an upper surface of the base is fixedly connected with a simulation cabin, one side wall of the simulation cabin is provided with a plurality of horizontal flow fans, a plurality of rotating flow fans arranged around the simulation cabin by a circle are mounted on the upper surface of the base, and a top portion of the simulation cabin is provided with a plurality of vertical flow fans. The multi-physics field coupling environment simulation device of the invention is used for simulating complex environments of three-dimensional multi-physics field coupling under different weathers, which improves the diversity of wind tunnel tests.

Abstract: The present application discloses a functionalized separator, a method for preparing the same, a lithium metal battery, and a device comprising the lithium metal battery. The functionalized separator comprises a porous substrate and a functional film layer provided on at least one side of the porous substrate, wherein the functional film layer comprises inorganic particles which are able to reversibly react with metal lithium to form a lithium alloy.

Abstract: The present invention provides compounds which are selective kappa-opioid receptor agonist, method of preparation of these compounds, compositions that comprise these compounds, and methods for treating kappa-opiod receptor agonist related medical disorders.

Abstract: Provided are a Hot Backup system and method, and an electronic device and a storage medium. The system includes: an accelerator card, correspondingly connected to a primary server on a one-to-one basis, connected to a standby server in a sharing manner, and configured to acquire operating state information, operation log information, memory information, and configuration information of the primary server, in a case where determining, according to the operating state information, that the primary server has crashed, acquire data to be processed that is to be transmitted to the primary server, and transmit the operation log information, the memory information, the configuration information, and the data to be processed to the standby server; and the standby server, configured to generate, through simulation, a virtual application environment of the primary server and execute an application service of the primary server.

Abstract: The provided is an on-chip voltage prediction circuit based on parameters of the chip's power delivery network. The circuit includes: an on-chip PDN impedance scanning module, an on-chip voltage monitoring module, an on-chip PDN parameter lookup table storage module, an on-chip predictive digital power meter, and an on-chip voltage prediction-calculation module. The circuit establishes a physical model that maps historical voltages and predicted current information to predicted voltage information. By quantizing the model and using the voltage monitoring circuit and the predictive digital power meter together, the provided implements on-chip deployment of the voltage prediction circuit, and effectively predicts future on-chip voltages.

Abstract: The present disclosure discloses a data read and write method.

Abstract: A flexible multifunctional cross-linking adhesive, a preparation method therefor and an application thereof. The adhesive uses guar gum and carboxyl styrene butadiene rubber as raw materials, and is formed by intermolecular cross-linking between hydroxyl groups rich in the guar gum and carboxyl groups contained in the carboxyl styrene butadiene rubber to form a flexible multifunctional cross-linked network. Compared to the prior art, the water-based adhesive is a flexible cross-linking adhesive that has a strong bonding force, high mechanical strength, and no cracking due to tensile deformation, and is insoluble in a battery electrolyte. The adhesive may effectively accommodate the volume effect of a sulfur positive electrode and keep the positive electrode structure intact during a cycling operation. At the same time, the adhesive has significant advantages such as environmental friendliness and being low cost.