Abstract: Provided is a method and device for viscosity-reducing and upgrading of low-grade heavy oil. The method comprises: (a) performing visbreaking reaction on low-grade heavy oil raw material and controlling the content of toluene insolubles in the produced oil; (b) mixing the produced oil in step (a) with hydrogen in a gas-liquid mixer to obtain a hydrogen-oil mixture in liquid state, or mixing the produced oil in step (a) with hydrogen to obtain hydrogen-oil mixture in gas-liquid state; in the presence of a hydrogenation catalyst, performing hydrogenation reaction on the hydrogen-oil mixture in liquid state or the hydrogen-oil mixture in gas-liquid state in the reactor, and obtaining a viscosity-reduced and upgraded oil after the reaction. It is viscosity-reducing and upgrading method by combining thermal visbreaking and fixed-bed hydrogenation, which can solve the problems of high viscosity, high density and poor stability of low-grade heavy oil products in the prior art.

Abstract: A resin composition includes a vinyl-containing polyphenylene ether resin and a prepolymer, wherein the prepolymer is prepared by prepolymerization of a mixture which at least includes a divinylbenzene, a triallyl compound and a diallyl isophthalate. An article made from the resin composition is also provided, which includes a prepreg, a resin film, a laminate or a printed circuit board. The article achieves improvements in at least one properties of glass transition temperature, copper foil peeling strength, dissipation factor, inner resin flow, melt viscosity, minimum dynamic viscosity, resin filling property in open area, and water resistance.

Abstract: Techniques for signaling uplink transmission configuration indicator (TCI) states are disclosed. In an example, a base station may determine one or more capabilities of a user equipment (UE). The base station may also determine one or more uplink TCI states for the UE to use based on the one or more capabilities. The base station may also transmit, to the UE, signaling of the one or more uplink TCI states.

Abstract: A method for preloading an application, a terminal device, and a medium are provided. The method for preloading an application includes the following. An application predictive model is obtained by training a simple recurrent unit (SRU) neural network model according to multiple groups of usage timing association records. Usage status information of applications of a terminal of at least two past time points of a next time point is acquired. Probability values of launching the applications are acquired from the application predictive model by processing the usage status information of the applications with the application predictive model. An application to-be-launched at the next time point is determined according to the probability values and the application to-be-launched is preloaded.

Abstract: Provided is an accurate load shedding system and method based on a power-dedicated wireless network. The system includes: a control master station layer, a control substation layer and a terminal user access layer. The control master station layer includes a control master station apparatus and an optical/E1 conversion device. The control substation layer includes an optical/E1 conversion device, a control substation apparatus and a wireless access device. The terminal user access layer includes a wireless core network, a base station and a control terminal. The wireless access device is connected to the wireless core network through Ethernet. The wireless core network is connected with the base station through an optical fiber. The control terminal is connected to a wireless network of the base station through customer premise equipment (CPE).

Abstract: A computer-implemented method for processing blockchain-based transactions, the computer-implemented method including: receiving a target transaction initiated by a member node device in a blockchain, wherein the target transaction comprises a unique identifier of the target transaction; querying a transaction idempotent table on the block chain to determine whether the transaction idempotent table has stored a transaction idempotent record corresponding to the unique identifier of the target transaction; and in response to determining that the transaction idempotent table has not stored the transaction idempotent record corresponding to the unique identifier of the target transaction, recording the target transaction in a candidate block on the blockchain.

Abstract: A method for filling holes in a naked-eye 3D multi-viewpoint image is provided, comprising: sequentially performing a step of mapping, determining and marking row by row, comprising mapping two first pixels adjacent to each other in a row direction among a plurality of first pixels in a reference camera image to two second pixels in a virtual camera image, determining whether there is a hole between the two second pixels, and if so, marking the hole; and sequentially performing a step of scanning, assessing and filling row by row, comprising scanning two second pixels adjacent to each other in a row direction, assessing whether there is a marked hole between the two adjacent second pixels, and filling the marked hole according to at least one non-zero second pixel which is adjacent to the marked hole.

Abstract: Apparatus, systems, and methods for processing a workpiece are provided. In one example implementation, the workpiece can include a silicon nitride layer and a silicon layer. The method can include admitting an ozone gas into a processing chamber. The method can include exposing the workpiece to the ozone gas. The method can include generating one or more species from a process gas using a plasma induced in a plasma chamber. The method can include filtering the one or more species to create a filtered mixture. The method can further include exposing the workpiece to the filtered mixture in the processing chamber such that the filtered mixture at least partially etches the silicon nitride layer more than the silicon layer. Due to ozone gas reacting with surface of silicon layer prior to etching process with fluorine-containing gas, selective silicon nitride etch over silicon can be largely promoted.

Abstract: The present disclosure provides a method, an electronic device, and a storage medium for obtaining a depth image. The method includes: mapping a depth image having a first resolution into a color image having a second resolution to obtain a processed image, the first resolution being smaller than the second resolution; establishing an objective function with respect to the processed image and a depth image having the second resolution, pixels in the processed image having one-to-one correspondence with pixels in the depth image having the second resolution, the objective function aiming to minimize an error with respect to the processed image and the depth image having the second resolution; and solving the objective function to obtain the depth image having the second resolution.

Abstract: The present disclosure provides an uplink scheduling method in an unlicensed frequency band based on a dynamic frame structure, an uplink scheduling device and a base station. Each frame structure includes uplink and downlink subframes, and same type of a subframe continuity settings, the method includes: determining whether a currently used frame structure in an unlicensed frequency band needs to be reconfigured; when reconfiguration is not required, determining an uplink subframe to be scheduled on each downlink subframe according to the currently used frame structure; when reconfiguration is required, determining an uplink subframe to be scheduled on each downlink subframe in a last radio frame before a reconfiguration time point according to a first frame structure used before the reconfiguration time point and a second frame structure to be used; transmitting a scheduling instruction for the uplink subframe to be scheduled on each downlink subframe.

Abstract: An insulin conjugate comprising or consisting of a tri-valent sugar cluster is described. In particular aspects, the insulin conjugate displays a pharmacokinetic (PK) and/or pharmacodynamic (PD) profile that is responsive to the systemic concentrations of a saccharide such as glucose or alpha-methylmannose even when administered to a subject in need thereof in the absence of an exogenous multivalent saccharide-binding molecule such as Con A.

Abstract: A laser beam is directed through a transmissive axicon telescope or a reflective axicon telescope such as in a magneto-optic Kerr effect metrology system. With the transmissive axicon telescope, a Gaussian beam profile is directed through a first axicon lens and a second axicon lens. The first axicon lens and second axicon lens transfer the Gaussian beam profile of the laser beam to a hollowed laser ring. The laser beam with a hollowed laser ring can be directed through a Schwarzschild reflective objective. With the reflective axicon telescope, the laser beam is directed through two conical mirrors that are fully reflective. One of the conical mirrors defines a central hole that the laser beam passes through.

Abstract: A multi-stage, multi-level DC-DC step-down converter includes a first stage and a second stage having two identical cells connected in parallel. The first stage includes an input capacitor, four switches, and one flying capacitor. The two cells of the second stage each include four switches and one flying capacitor, and an output filter. The cells of the second stage are driven at half the switching frequency of the input stage, and provides a step-down ratio of 4:1. A third stage having four cells may be added to achieve a step-down ratio of 8:1, a fourth stage having eight cells may be added to achieve a step-down ration of 16:1, etc., each additional stage including a doubling of the number of cells connected in parallel, with all cells being substantially identical, and each stage operating at a further reduced fraction of the switching frequency. Embodiments are particularly suitable for applications such as a 48V intermediate bus architecture for servers and datacenters.

Abstract: A finishing method for reactive dye inkjet printing based on a cationic modifier includes: using the inkjet printing method to spray print the cationic modifier ink and the reactive dye ink on the cellulose fiber fabrics' pattern area after being subjected to sizing treatment, then subjecting the fabrics to steaming or baking treatment, and subjecting the fabrics to soaping to get the reactive dye inkjet printing fabrics. The timespan of spray printing the cationic modifier ink and reactive dye ink is 0-2 min. Cationic modifier ink includes 1.0-60.0 wt % cationic modifier. The cationic modifier refers to the molecular whose structure contains reactive group and positive charge group and the number average molecular weight of 100-30000. The reactive group is one or more in the group containing epoxy group, triazine, pyridine, and olefin. The positive charge group is one or more in the group containing quaternary ammonium salt, and ammonium chloride.

Abstract: Provided herein are hydrocarbon mixtures with controlled structure characteristics that address the performance requirements for finished lubricants driven by the stricter environmental and fuel economy regulations. The branching characteristics of the hydrocarbon molecules are controlled to provide a composition that has a unique and superior viscosity-temperature relationship and Noack volatility. An important aspect of the present invention relates to a saturated hydrocarbon mixture with at least 80% of the molecules having an even carbon number, with the branching characteristic of BP/BI in the range??0.6037 (Internal alkyl branching)+2.0, where on average at least 0.3 to 1.5 of the internal methyl branches are located more than 4 carbons away from the terminal carbon when analyzed by carbon NMR.

Abstract: A bearing assembly monitoring system includes a bearing assembly supporting rotation of a rotating member. The bearing assembly includes a fixed portion and rotatable portion. A piezoelectric element is mounted to the fixed portion and generates an electric signal in response to a vibration of the fixed portion. A first transceiver is electrically coupled to the piezoelectric element to receive the electrical signal generated by the piezoelectric element and generate a signal indicative of the vibration of the fixed portion. A gas turbine engine bearing monitoring system and a method are also disclosed.

Abstract: Described herein are systems and methods of storing and delivering electrical using hydrogen at low-cost and for long-durations. The systems and methods use energy-bearing redox pairs that electrochemically bear energy through decoupled hydrogen and oxygen consumption and/or evolution reactions, which are typically associated with fuel cells. Each species of the energy-bearing redox pair is associated with a standard electrode potential within a water electrolysis voltage window for the electrolyte solution. Electrical energy delivery, hydrogen generation, electrolyte regeneration, or combinations thereof can be performed by logically or physically separated unit operations in a continuous manner, batch manner, or semi-batch manner facilitated by the energy-bearing redox pair.

Abstract: Embodiments of this application provide an information transmission method and a device, so as to improve communication reliability and reduce complexity of processing by a receive end. The method includes: determining, by a terminal device, a data processing mode, where the data processing mode includes a modulation and coding mode; processing data based on the data processing mode; determining a pilot signal based on the data processing mode; and sending the pilot signal and processed data.