Abstract: Provided is a two-component polyurethane composition, comprising, (a) an isocyanate component that comprises: at least one aromatic isocyanate compound, and (b) a polyol component that comprises: at least one polyether polyol compound, a sulfide-free urea or a derivative thereof, an alcohol chain extender, wherein the isocyanate component and polyol component have an NCO/OH ratio of from 0.9:1 to 1.2:1. Also provided are a product prepared using the polyurethane composition, and the preparation method thereof.

Abstract: Disclosed are a semantic based Huffman encoding method, a semantic based Huffman decoding method and related devices. In the semantic based Huffman encoding method, an information sequence containing source symbols is received at first. Then, synonymous mappings are performed on the source symbols respectively based on a synonymous mapping codebook. Later, synonymous sets corresponding to the source symbols are determined respectively. Further, encoded codewords corresponding to the synonymous sets are determined respectively based on a semantic Huffman codebook. After sorting the encoded codewords according to an order of the source symbols in the information sequence to obtain an encoded sequence corresponding to the information sequence, the encoded sequence is transmitted to a receiving end for decoding.

Abstract: Disclosed is an encoding method for semantic channels. According to the encoding method, a semantic codebook and synonymous mapping relationships may be obtained at first. Then, a syntactic information sequence to be transmitted may be determined. Further, a syntactic codeword from the semantic codebook corresponding to the syntactic information sequence may be determined based on the synonymous mapping relationships. Finally, the syntactic codeword may be modulated to obtain a signal vector.

Abstract: The present invention proposes an O-band silicon-based high-speed semiconductor laser diode for optical communication and its manufacturing method, by using different buffer layers to form the growth surface of InP material with low dislocation density; N—InAlGaAs is used instead of conventional N—InAlAs electron-blocking layer in the epi-structure to reduce the barrier for electrons to enter the quantum wells from N-type and lower the threshold; a superlattice structure quantum barrier is used instead of a single layer barrier structure to improve the transport of heavy holes in the quantum wells; and the material structure is adjusted to achieve a reliable O-band high direct modulation speed semiconductor laser diode for optical communication on silicon substrate.

Abstract: Uninterruptible power modules for use with uninterruptible power supplies are provides. The uninterruptible power modules include a rectification module, an inverter module and a fan module which are detachably assembled together. The rectification module includes a first housing; a first electrical network, mounted to the first housing, the first electrical network is configured to be selectively connected to a main power supply or current supplied by a standby power supply and convert the current provided by a main power supply or a standby power supply into DC current. The inverter module includes a second housing, detachably connected to the first housing; a second electrical network, which is mounted to the second housing and connected to the first electrical network. The second electrical network is converts DC into AC power.

Abstract: Method and systems are provided that characterize a geological formation, which involve collecting or obtaining electrical signal data that results from interaction of electrical signals with the formation. The electrical signal data is processed to determine data characterizing relative permittivity and conductivity of the formation. The data characterizing relative permittivity and conductivity of the formation are used as inputs to models to determine data characterizing water saturation of the formation, particularly useful in formation evaluation and reservoir saturation dynamic monitoring in fresh water and mixed salinity environments.

Abstract: This disclosure relates to a seal for a power module and an electric energy conversion and transmission device. The seal for the power module comprising a housing having a first side surface and a second side surface opposite to each other and pins sticking out of the first side surface, the seal comprises a peripheral wall extending continuously in the circumferential direction to define a accommodating space, which is adaptable for accommodating the power module, the peripheral wall is elastic and has a first end and a second end opposite to each other, and the peripheral wall is configured such that when the power module is completely accommodated in the accommodating space, the first end of the peripheral wall is at least higher than the first side surface of the housing.

Abstract: Disclosed herein are methods of preparing composites from solid elastomer(s) and wet filler(s), as well as products, including composites, vulcanizates, and articles therefrom. The wet filler can have a liquid content of at least 15%. A resulting composite comprises the filler dispersed in the elastomer at a loading of at least 20 phr with a filler yield loss of no more than 10%, wherein the composite has a liquid content of no more than 10% by weight based on total weight of said composite.

Abstract: Provided is a wearable display device. The wearable display device includes: a display panel, comprising a display region and a peripheral region surrounding the display region; a first light-emitting element, configured to emit light to be irradiated to eyes of a user; a plurality of photoelectric sensor assemblies in the peripheral region; a first polarizer layer, disposed on a light-emitting side of the first light-emitting element; and a second polarizer layer, disposed on a side, distal from the display panel, of the photoelectric sensor assembly, a polarization direction of the second polarizer layer being intersected with a polarization direction of the first polarizer layer.

Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, and a certain 3-oxopropanamide compound. Foams so produced emit low levels of aldehydes.

Abstract: A system and method for biologically monitoring the fitness of an athlete, and providing a warning when an overtraining condition is determined in order to reduce injury. Through implementation of an efficient system architecture, micro-artificial intelligence use is practical for mobile situations where internet coverage is deficient or non-existent.

Abstract: This application provides a camera module and an electronic device. The camera module includes a lens assembly, a sleeve assembly, a substrate, and a conductive assembly. The lens assembly is connected to the substrate via the sleeve assembly. The sleeve assembly includes at least two sleeves nested in sequence. For two adjacent sleeves, a first sleeve is nested in a second sleeve, and the first sleeve is capable of moving away from or toward the substrate relative to an axis of the second sleeve. The lens assembly is mounted in at least one target sleeve and is disposed opposite to a photosensitive chip on the substrate. A first end of the conductive assembly is connected to the substrate, a second end of the conductive assembly is connected to the target sleeve, and the target sleeve is conductively connected to a grounding line of the substrate via the conductive assembly.

Abstract: A signal processing system and method for integrated communication and sensing includes a terminal and an access device. The terminal performs uplink transmission beamforming and management by using fused sensing information, and sends an uplink signal in an uplink time slot. The access device receives the uplink signal in the uplink time slot and receives an echo signal of a downlink signal in a downlink time slot; and performs incident angle estimation, performs reception beamforming and management, performs range and Doppler frequency shift estimation by using fused sensing information to obtain first sensing information of the uplink signal and second sensing information of the echo signal; updates the fused sensing information based on the first sensing information and the second sensing information; performs downlink transmission beamforming and management by using the fused sensing information, and sends a downlink signal in a downlink time slot.

Abstract: The present invention relates to compounds of formula (I): or pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising these compounds, as well as methods and uses of these compounds in the treatment of diseases.

Abstract: The present disclosure provides a preparation method of a non-natural anti-human CD45RA murine chimeric antigen receptor (CAR). In the present disclosure, eukaryotic expression vectors pcDNA3.1/Mu3A4-4-1BB-3? and pcDNA3.1/Mu3A4-4-1BB-3?-EGFP and a lentiviral expression vector pLenti/Mu3A4-4-1BB-3? are constructed based on molecular biology using a mouse-derived 3A4 antibody. The lentiviral expression vector pLenti/Mu3A4-4-1BB-3? can successfully infect human T cells and effectively kill 3A4-positive target cells such as KG1a cells and Raji cells. The recognition of antigens by Mu3A4CAR does not depend on antigen presentation process and is not restricted by a major histocompatibility complex (MHC), thus overcoming tumor immune evasion to kill 3A4-positive tumor cells more effectively.

Abstract: A multi-functional reconfigurable intelligence surface (MF-RIS) integrating signal reflection, refraction and amplification and energy harvesting and an application thereof are provided. The MF-RIS can support wireless signal reflection, refraction and amplification and energy harvesting on one surface, to amplify, reflect, or refract a signal through harvested energy, and further enhance effective coverage of wireless signals. When a signal model of the MF-RIS constructed in the present disclosure is applied to a multi-user wireless network, a non-convex optimization problem of jointly designing operation modes and parameters that include BS transmit beamforming, and different components and a deployment position of the MF-RIS is constructed with an objective of maximizing a sum rate (SR) of a plurality of users in an MF-RIS-assisted non-orthogonal multiple access network.

Abstract: Disclosed are a combined blade device and a combined air outlet device. The combined blade device includes a hub, diagonal flow blades, and centrifugal blades, where a first air inlet is formed outside an edge of a first end of the hub, and a first air outlet is formed outside an edge of a second end of the hub, the hub is internally provided with a centrifugal cavity, the first end of the hub is provided with a second air inlet, the first air inlet surrounds the second air inlet, the second end of the hub is provided with a second air outlet, both the second air inlet and the second air outlet are communicated with the centrifugal cavity, and the hub expands gradually in a direction from the second air inlet to the second air outlet.

Abstract: A preparation method for a tungsten sulfide (WS2) solid lubricating film based on high power impulse magnetron sputtering (HiPIMS) is provided. The preparation method includes the following steps: step 1: depositing a metal conductive film on a surface of a WS2 target; step 2: using magnetic field sputtering to remove the metal conductive film in a target sputtering area on the surface of the WS2 target, thereby obtaining a first WS2 target; and step 3: performing the HiPIMS on the first WS2 target to obtain the WS2 solid lubricating film. The preparation method can achieve stable glow discharge of a WS2 target and use the high deposition energy of HiPIMS to prepare the WS2 solid lubricating film with high compactness and excellent wear resistance.