Abstract: The invention relates to an ultra-thin carbon-layer composite material modified by nickel nanoclusters and vanadium carbide particles, and its preparation method and application. The composite material comprises a two-dimensional ultra-thin carbon-layer as a matrix, in which nickel clusters and vanadium carbide nanoparticles are embedded to form coupling interfaces between Ni and C, VC and C, and Ni and VC. The thickness of the two-dimensional ultra-thin carbon-layer is less than 10 nm.

Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.

Abstract: The invention relates to a V-Ni2P/g-C3N4 photocatalyst, a preparation method, and application thereof. The V-Ni2P/g-C3N4 photocatalyst is a composite material of V-Ni2P and g-C3N4, wherein V-Ni2P has the spherical structure formed by nanosheets; the mass ratio of the V-Ni2P and g-C3N4 is (0.01 to 0.2):1.

Abstract: A preparation method of a tetragonal NaV2O5.H2O nanosheet-like powder includes steps of: (Step 1) simultaneously adding NaVO3 and Na2S.9H2O into deionized water, and then magnetically stirring, and obtaining a black turbid solution; (Step 2) sealing after putting the black turbid solution into an inner lining of a reaction kettle, fixing the sealed inner lining in an outer lining of the reaction kettle, placing the reaction kettle into a homogeneous reactor, and then performing a hydrothermal reaction; and (Step 3) after completing the hydrothermal reaction, naturally cooling the reaction kettle to the room temperature, and then alternately cleaning through water and alcohol, and then collecting a product, drying the product, and finally obtaining the tetragonal NaV2O5.H2O nanosheet-like powder with a thickness in a range of 30-60 nm and a single crystal structure grown along a (002) crystal orientation.

Abstract: A method of preparing an enhanced yellow-emitting carbon dots includes dissolving citric acid and urea in N,N-dimethylformamide, reacting at a temperature of 150-180° C. for 4-8 h to obtain a carbonized mixture, separating and purifying the carbonized mixture through column chromatography using an eluent prepared according to a volume ratio of dichloromethane to methanol from high to low, collecting a solution obtained by elution when the volume ratio of dichloromethane to methanol is 1:1-2, performing rotary evaporation to remove the solvent, and drying to obtain the yellow-emitting carbon dot. The yellow-emitting carbon dot with fluorescence intensity enhanced with the increase of temperature is synthesized. The yellow-emitting carbon dots has application value in the fields of temperature detection, biological imaging, photoelectric equipment and the like.

Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.

Abstract: A composition comprising the following components: A) an ethylene/?-olefin/non-conjugated diene interpolymer; B) a peroxide; C) at least one multi-vinyl cyclic siloxane selected from Structure 1 below: Structure 1, wherein n is an integer greater than, or equal to, 1; and each R1 is independently selected from the following: a (C2-C4) alkenyl, or a H2C?C(R1a)—C(?O)—O—(CH2)m—, and wherein R1a is H or methyl, and m is an integer from 1 to 4; and each R2 is independently selected from the following: H, a (C1-C4) alkyl, a (C2-C4) alkenyl, a phenyl, or a H2C?C(R1b)—C(?O)—O—(CH2)m—, wherein R1b is H or methyl, and m is an integer from 1 to 4.

Abstract: The present invention relates to a container liner for holding liquid goods, wherein the liner comprises a film comprising one or more layers, wherein at least one of said layers is a layer L1 comprising (a) ?20.0 wt %, preferably ?20.0 and ?80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene P1 having: •a density of >900 and <915 kg/m3, preferably of >905 and <913 kg/m3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ?0.1 and ?5.0 g/10 min, preferably of ?0.5 and ?2.0 g/10 min, as determined in accordance with ISO 1133-1 (2011) at 190° C. using a load of 2.16 kg; and (b) ?20.0 wt %, preferably ?20.0 and ?80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene plastomer P2 having: •a density of >880 and <905 kg/m3, preferably of >890 and <904 kg/m3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ?0.1 and ?5.0 g/10 min, preferably of ?0.5 and ?2.

Abstract: A delay estimation system estimates a delay of a DUT for an emulation system. The delay estimation system receives logic blocks of the DUT and a combinatorial path connecting one or more of the logic blocks. The system applies a delay model to a feature vector representing the combinatorial path, where the delay model can determine a delay of the combinatorial path. The delay model may be a machine learning model. The system generates a timing graph using the determined delay and provides the timing graph to a compiler to perform placement and routing of the DUT.

Abstract: Provided is a high-efficiency vanadium nitride/molybdenum carbide heterojunction hydrogen production electrocatalyst, and a preparation method and application thereof. The electrocatalyst has a heterojunction structure formed by coupling VN and Mo2C, wherein the mass ratio of VN and Mo2C is 20:1 to 50:1. The electrocatalyst couples nano-VN and Mo2C to form a VN/Mo2C heterojunction, so that the active center is increased, and the balance of the reaction kinetics of H+ adsorption and H2 desorption is facilitated, thereby greatly improving the activity of the electrocatalyst.

Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.

Abstract: Provided is a three-phase system V2O3/VN/Mo2C nanoelectrode material, and a preparation method and application thereof. The nanoelectrode material comprises V2O3 particles, VN particles, and Mo2C particles. The V2O3 particles, VN particles, and Mo2C particles are interlaced in lattice stripes and are uniformly distributed. The mass ratio of the V2O3, VN and Mo2C is (1 to 4):(10 to 40):(4 to 16). The above-mentioned three kinds of nanoparticles are intertwined to form more incoherent interface area. The increase in the area of the incoherent interface area will cause more defects, so that more active sites are provided, and the hydrogen production performance is improved.

Abstract: The present disclosure relates to a W18O49/COO/CoWO4/NF self-supporting electrocatalytic material and a preparation method thereof, the W18O49/CoO/CoWO4/NF self-supporting electrocatalytic material comprising: a foamed nickel substrate and a W18O49/CoO/CoWO4 composite material formed in-situ on a foamed nickel substrate. Preferably, the W18O49/CoO/CoWO4 composite material is CoO/CoWO4 composite nanosheets and W18O49 nanowires distributed among the CoO/CoWO4 composite nanosheets.

Abstract: The present disclosure relates to a self-supporting electrocatalytic material and a preparation method thereof, the self-supporting electrocatalytic material is a Cu2O/WO3/CF self-supporting electrocatalytic material. The Cu2O/WO3/CF self-supporting electrocatalytic material comprises: a foamed copper substrate, and Cu2O and WO3 grown in situ on the foamed copper substrate.

Abstract: The present disclosure relates to a W18O49/CoO/NF self-supporting electrocatalytic material and a preparation method thereof, the W18O49/CoO/NF self-supporting electrocatalytic material comprises: a foamed nickel substrate, and a W18O49/CoO composite nano material generated on the foamed nickel substrate in situ; preferably, wherein the W18O49/CoO composite nano material comprises CoO nanosheets attached directly to the foamed nickel substrate, and W18O49 nanowires attached to the nanosheets.

Abstract: Disclosed are an antigravity shear-resisting and deformation-eliminating centerless grinding apparatus and a machining method. The grinding apparatus comprises a grinding tool configured to grind a thin-walled bearing ring and a clamping mechanism configured to clamp the thin-walled bearing ring stably. The clamping mechanism comprises a main clamping mechanism and an auxiliary clamping mechanism. The main clamping mechanism comprises an electromagnetic centerless clamp. The electromagnetic coil is arranged above the thin-walled bearing ring being ground. According to the present invention, not only can gravity of the thin-walled bearing ring and a tangential force generated by grinding be counteracted to effectively prevent extrusion deformation of the thin-walled bearing ring when being ground, but also the lubricating performance the capacity to resist load itself can be further improved and the service life of is prolonged.

Abstract: A method includes generating a channel configuration between a first signal pin of a first integrated circuit (IC) die and a second signal pin of a second IC die based on a multiplex data rate (XDR) of the first signal pin and the second signal pin. The channel configuration includes an association of the XDR to a channel. The method also includes determining a signal pin channel assignment based on the channel configuration, updating the channel configuration based on the signal pin channel assignment and a wirelength representative of a total distance between the first signal pin, the second signal pin, and physical ports of the channel, and performing socket instantiation based on the updated channel configuration and the signal pin channel assignment.

Abstract: Disclosed is a crank shaft, including a central rotation shaft, a first eccentric component, a second eccentric component, a disc partition plate and an annular partition plate, wherein the disc partition plate is disposed between the first eccentric component and the second eccentric component, and is integrally formed with the central rotation shaft, and the annular partition plate is sleeved outside the disc partition plate. The crank shaft can prevent the occurrence of leakage between the partition plate and a roller while increasing an eccentricity of the crank shaft and improving operating performances of a compressor. Further disclosed are a pump body assembly having the crank shaft and a compressor.

Abstract: The invention relates to a V—Ni2P/g-C3N4 photocatalyst, a preparation method, and application thereof. The V—Ni2P/g-C3N4 photocatalyst is a composite material of V—Ni2P and g-C3N4, wherein V—Ni2P has the spherical structure formed by nanosheets; the mass ratio of the V—Ni2P and g-C3N4 is (0.01 to 0.2):1.

Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.