Abstract: An inkjet printing system includes: (a) an inkjet printhead having a rigid elongate manifold with first and second parallel ink supply channels extending along a length of the manifold between respective ink ports positioned at opposite ends thereof; and a plurality of printhead chips mounted to a lower surface of the manifold, the ink supply channels supplying ink to the printhead chips via ink outlets defined in the lower surface. One end of the manifold has a first ink inlet port for the first ink supply channel and an ink outlet port for the second ink supply channel. The other end of the manifold has a first ink outlet port for the first ink supply channel and a second ink inlet port for the second ink supply channel. An ink delivery system is configured to flow ink along the first and second channels in opposite directions.

Abstract: A valve leaflet obstruction repair clip and a repair system thereof include a clamping component and a flow obstruction component. The clamping component and the flow obstruction component are assembled and clamped to fix the incomplete closure between the valve leaflets. The upper clamping arm and the lower clamping arm are engaged together in a natural state, and the upper clamping arm undergoes unilateral movement in an extended state. The present application enables edge-to-edge repair of the valve leaflets and adopts unilateral clamping, effectively preventing the problem of valve leaflet stenosis caused by the implantation of the repair device.

Abstract: Systems and methods enable machine learning (ML) feature prioritization to reduce image noise in a virtual environment. In embodiments, a method includes providing a device access to a virtual environment via a graphical user interface (GUI), the environment including images of objects and a navigation tool enabling a user to navigate the environment and interact with the images; monitoring interaction data of the user; calculating priority values for predefined areas of a first object in the environment, using an ML model trained with historic user interaction data and object data; processing image data of one or more of the predefined areas of the first object using image processing to generate new data based on display specifications of the client device and the priority values; and pre-loading the new data in a buffer, such that the new data is available prior to display of the new data to the user.

Abstract: A power system includes N power modules and at least two adjustment units that are one-to-one coupled to the N power modules. Each adjustment unit is connected to a controller, and each power module is configured to perform power conversion. The adjustment unit is configured to: obtain a current working status of the corresponding power module, generate a status signal and a phase frequency signal, and send the status signal and the phase frequency signal to the controller. The controller generates an output power signal based on the status signal and the phase frequency signal. The adjustment unit is further configured to: obtain the output power signal, and adjust an output power of the corresponding power module based on the output power signal, where N is a positive integer greater than or equal to 2.

Abstract: A method and system for picking first-break times for a seismic dataset are disclosed. The method includes generating a pre-processed seismic dataset and an initial refraction velocity model from the pre-stack seismic dataset and generating a first-break energy-enhanced seismic dataset using nonlinear beamforming applied to the pre-processed seismic dataset and the initial refraction velocity model. The methods further include estimating a refined refraction velocity model from the first-break energy-enhanced seismic dataset, and generating a post-processed seismic dataset from the refined refraction velocity model and first-break energy-enhanced seismic dataset. The methods still further include, for each pre-stack trace, determining a first-break time from the post-processed seismic dataset and the refined refraction velocity model.

Abstract: An identity certificate may be issued to a blockchain node. The issuance may include issuing a first identity certificate to a first terminal and receiving a second identity certificate issuance request that is from the first terminal. A second identity certificate may be issued to the first terminal, and a third identity certificate issuance request is received from the second terminal. A third identity certificate is issued to the second terminal, so that the second terminal forwards the third identity certificate to the third terminal.

Abstract: The present invention provides a high-strength and high-heat-resistant bio-based polyamide composition, which consists of the following parts of materials by mass: 43.50-89.95% of bio-based polyamide resin slices; 10-50% of reinforcements; 0.01-2% of rare earth compounds; 0.01-1% of copper salt antioxidant combinations; 0.01-1% of free-radical scavengers; 0.01-0.5% of heat-conducting masterbatches; 0.01-1% of stabilizers; and 0-1% of dispersants. The advantage of the present invention is presented in that: the bio-based polyamide resin slice is prepared through a stepwise polycondensation process of pentanediamine and adipic acid, or through a stepwise polycondensation process of pentanediamine, adipic acid and terephthalic acid and the pentanediamine is prepared through fermentation of starch, so the prepared polyamide resin pertains to an environmentally-friendly engineering plastic.

Abstract: A method for preparing a supported Ru and/or Ni catalyst includes mixing a magnesium precursor, a zinc precursor, or a nickel precursor with an aluminum precursor in solid phase to form a first mixture; adding an auxiliary agent to the first mixture to form a second mixture, wherein the auxiliary agent is to increase a specific surface area; calcining the second mixture at a first temperature to obtain a spinel carrier; placing the spinel carrier in a solution of a Ru and/or Ni metal salt to impregnate the spinel carrier with the Ru and/or Ni metal salt to obtain an impregnated carrier; and after drying, calcining the impregnated carrier at a second temperature to obtain the supported Ru and/or Ni catalyst.

Abstract: The present disclosure provides a fire retardant wood, a preparation method thereof, and a use of metal halide. The preparation method of fire retardant wood includes: impregnating a wood with a salt solution. By injecting low-cost metal halide into the interior of wood, the present disclosure obtains wood with natural color and texture and high flame retardant ability, which is very suitable for use in decorative environment and is expected to be applied in many fields such as furniture, architecture, shipbuilding and ancient wood preservation.

Abstract: The present invention relates to the field of pharmaceutical and chemical engineering, and specifically relates to a weakly acidic microenvironment-sensitive aptamer for tumors, a triptolide conjugate. The conjugate is formed by conjugation between the 14-position hydroxyl group of triptolide and the aptamer via an acetal ester linking bond, which is an acid-sensitive linking bond with a cleavage condition of (pH=3.5-6.5), which is much less pH-sensitive and is more likely to cleave under the tumor microenvironment. Based on the characteristics of the aptamer targeting the highly expressed proteins on the membrane surface of tumor cells, the conjugate delivered triptolide targeted to tumor cells and mediated endocytosis to reach the lysosome; based on the characteristics of the acidic environment of lysosomes, the acetal ester linking bond released intact triptolide in the lysosomal acidic environment, targeting and killing of tumor cells.

Abstract: Methods, systems, and apparatuses are described herein for beamforming based initial access, beam management, and beam based mobility designs for NR systems. Issues are identified and addressed related to, for example, initial access, control channel design, eMBB and URLLC mixing, and beam training.

Abstract: A method for scheduling and displaying three-dimensional annotations is provided, relating to the field of realistic three-dimensional visualization technology. The present disclosure covers data services, data scheduling schemes, data storage schemes, annotation avoidance schemes, and annotation efficient display schemes. Users can use this disclosure to schedule and display massive three-dimensional annotations in WebGL at high frame rates while consuming extremely low performance. It solves the problem of text inversion and non-hierarchical zooming of three-dimensional maps in traditional annotation and slicing services which can cause text to appear larger or smaller, breaking through the technical bottleneck that traditional annotation and slicing services that cannot be superposition displayed on 3D models.

Abstract: The present disclosure relates to a leather coating composition comprising or consisting of a hydrosilylation curable silicone elastomer composition designed to be used as a topcoat for a synthetic leather material, particularly a silicone-based synthetic leather composite material. A silicone coating as a topcoat for a synthetic leather material which is the cured product of the composition, methods of making the topcoat, synthetic leather material utilizing same and uses of the synthetic leather material products are also disclosed. The topcoat is designed to provide a highly crosslinked silicone matrix containing silicon-free organic micro-particles to minimize or at least decrease change in gloss after abrasion.

Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: An enclosure, a battery and a power consuming device are provided. The enclosure is configured to accommodate battery cells and includes: a positioning member, including a bottom wall and a side wall connected to a circumference of the bottom wall, the side wall and the bottom wall enclosing and defining a positioning cavity, and the bottom wall being provided with a hollow portion; a fixing frame, located in the positioning cavity and configured to enclose the battery cells; and a backplate, disposed on one side of the bottom wall facing away from the positioning cavity. According to embodiments of the present application, the fixing frame can be rapidly assembled in the positioning cavity so that the assembly efficiency of the enclosure can be effectively improved.

Abstract: A first device is logged in with a first user account. The first device displays an avatar of a second user account in a first user interface of the first device. In response to an interaction instruction triggered on the avatar of the second user account, the first device generates an interaction message according to a first field corresponding to the first user account, an action description field corresponding to the interaction instruction, and a second field corresponding to the second user account. The first device transmits the interaction message to a second device that is logged in with the second user account.

Abstract: A display substrate and a display device. The display substrate includes a base, an insulating layer, a crack barrier structure, and a signal line. The crack barrier structure is located in a peripheral area, and at least a part of an orthographic projection of the crack barrier structure onto the base extends in an extension direction of a boundary of a display area. The crack barrier structure includes: a groove structure and a blocking portion, the groove structure is in the insulating layer, and a part of the blocking portion is located in the groove structure. The signal line is located at the peripheral area, and includes a top surface facing away from the base, and a side surface located between the top surface and the base, and at least a part of the side surface away from the display area is between the blocking portion and the groove structure.

Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.

Abstract: This application provides a method for issuing a digital certificate performed by a digital certificate issuing center that includes a public-private key generation module and an authentication module. The method includes: receiving a public-private key request from a node in a blockchain network; generating a public key and a private key of the node by using the public-private key generation module, and transmitting the public and private keys to the node; receiving the public key of the node and registration information of the node, and authenticating the registration information by using the authentication module; and generating, in accordance with a determination that the authentication succeeds, a digital certificate of the node by using the authentication module, and transmitting the digital certificate to the node. The embodiments of this application can improve the probative value of an issued digital certificate, thereby improving the security of data exchange in a blockchain network.