Abstract: Embodiments of the present disclosure provide for passivated quantum dots, methods of making passivated quantum dots, methods of using passivated quantum dots, and the like.

Abstract: In accordance with the present disclosure, one embodiment includes a memristor that is caused to be in a particular resistance state by a voltage applied across terminals of the memristor. A first logical input and a second logical input that are below a threshold voltage of the memristor are applied to a first terminal of the memristor. A first control input and a second control input are applied to a second terminal of the memristor. A logical output is determined based on a resistance state of the memristor.

Abstract: A multistep finite control set model predictive control method for linear induction machines is provided, and the method belongs to a control technology field for linear induction machines. The method specifically includes the following steps: collecting a primary phase current of a linear induction machine in a three-phase coordinate system; solving a multistep reference voltage vector sequence by iteration according to a current value; keeping only two non-zero voltage vectors and one zero voltage vector that are closest to a reference voltage vector in each predictive step; and further eliminating a voltage vector sequence having a large cost function value through dynamic online comparison with a cost function value.

Abstract: A method for optical communication between first and second transceivers over a channel in a free-space medium involves receiving a binary string of uniformly distributed bits and converting them into probabilistically-shaped unipolar M-pulse amplitude modulated (M-PAM) symbols using distribution matching. The probabilistically-shaped unipolar M-PAM symbols are mapped into a binary bit stream, which are used to generate, at a forward error correction rate, parity bits. The parity bits are mapped to uniformly-distributed unipolar M-PAM parity symbols. The probabilistically-shaped unipolar M-PAM symbols and the uniformly-distributed unipolar M-PAM parity symbols are multiplexed to form a codeword that is used to modulate the intensity of a laser so as to transmit the codeword.

Abstract: Disclosed are a pulse magnet device based on magnetic flux compression, and a high-flux measurement method. The device includes a diamagnetic block, reinforcing plates, screw rods and a magnet coil. The diamagnetic block and the magnet coil are concentrically arranged in the axial direction; the reinforcing plates are arranged at ends of the magnet coil and the diamagnetic block and are connected by means of the screw rods. The diamagnetic block is used for inducing the induction current opposite the coil current during the discharge of the magnet coil, and for compressing the magnetic field to the area between the diamagnetic block and the magnet coil. The intensity and uniformity of the magnetic field around the magnet coil are improved by means of increasing the magnetic flux density.

Abstract: A method for controlling a direct contact membrane distillation (DCMD) system, the method including modeling the DCMD system with differential-algebraic equations (DAEs), wherein the DAEs include process states {tilde over (x)}(tk) and an input state u(tk); selecting a value for the input variable u(tk) for a time tk; estimating the process states {tilde over (x)}(tk) based on the DAEs and the input state u(tk); checking that a boundedness function G applied to the process states {tilde over (x)}(tk) is smaller than a desired steady-state point ?e; and minimizing an objective function, which depends on the process states {tilde over (x)}(tk) and the input state u(tk), to determine an updated input state u(tk+1) for a next time tk+1. The process states {tilde over (x)}(tk) include temperatures and heat flow rates.

Abstract: A two-photon-polymerization laser direct writing system based on an acousto-optic deflector is provided, which includes an ultrafast laser device, a beam expander, a scanning field center angular dispersion compensator, a two-dimensional acousto-optic deflector, a scanning field edge angular dispersion compensator, an astigmatism compensator and a focusing objective lens, the ultrafast laser device is configured to emit an ultrafast laser; the scanning field center angular dispersion compensator is configured to conduct precompensation on an angular dispersion at a center of a scanning field; the two-dimensional acousto-optic deflector is configured to deflect the ultrafast laser on the angular dispersion at the center of the scanning field; the scanning field edge angular dispersion compensator is configured to compensate for an angular dispersion at an edge of the scanning field; the astigmatism compensator is configured to compensate for astigmatism; the focusing objective lens is configured to conduct tig

Abstract: A calibration method for fringe projection systems based on plane mirrors. Firstly, two mirrors are placed behind the tested object. Through the reflection of mirrors, the camera can image the measured object from the front and other two perspectives, so as to obtain 360-degree two-dimensional information of the measured object. The projector projects three sets of phase-shifting fringe patterns with frequencies of 1, 8, and 64. The camera captures the fringe image to obtain an absolute phase map with a frequency of 64 by using the phase-shifting method and the temporal phase unwrapping algorithm. By using the calibration parameters between the projector and the camera, the absolute phase map can be converted into three-dimensional information of the measured object. Then, the mirror calibration is realized by capturing a set of 3D feature point pairs, so that the 3D information from different perspectives is transformed into a unified world coordinate system.

Abstract: A method for electrochemical extraction of uranium from seawater using an oxygen vacancy (OV)-containing metal oxide includes the following steps: adding glycerin to a solution of indium nitrate in isopropanol, transferring a resulting mixture to a reactor, and conducting reaction to obtain a spherical indium hydroxide solid; dissolving the solid in deionized water, transferring a resulting solution to the reactor, and conducting reaction to obtain a flaky indium hydroxide solid; calcining the solid to obtain calcined OV-containing In2O3-x; adding the In2O3-x to ethanol, and adding a membrane solution; coating a resulting solution uniformly on carbon paper, and naturally drying the carbon paper; clamping dried carbon paper with a gold electrode for being used as a working electrode for a three-electrode system; and adding simulated seawater to an electrolytic cell, placing the three-electrode system in the simulated seawater, and stirring the simulated seawater for electrolysis to extract uranium from the sea

Abstract: The present invention relates to the technical field of new materials, and provides a dianhydride compound having a rigid alicyclic fluorine-containing structure, and a preparation method and use thereof. The preparation method includes a first step of subjecting 2,3,6,7-tetramethylanthracene-9,10-dione to a nucleophilic addition reaction, to obtain ((2,3,6,7-tetramethyl-9,10-bis(trifluoromethyl)-9,10-dihydroanthracene-9,10-diyl)bis(oxy))bis(trimethylsilicane); a second step of converting the trimethylsiloxane on the product obtained in the first step into a hydroxyl group; and a third step of replacing the hydroxyl group on the product obtained in the second step by F, Cl, CF3 or a phenyl ring, and then oxidizing and dehydrating into an anhydride to obtain a dianhydride compound.

Abstract: Disclosed is a method for preparing aromatic hydrocarbons by hydrocracking a polymer containing aromatic rings, which includes reacting the polymer fragment with hydrogen under the action of a catalyst at a temperature of no more than 350° C.; separating a reaction product to obtain the aromatic hydrocarbons. The catalyst comprises a carrier and an active ingredient supported on the carrier, the active ingredient is at least one selected from Ru, Rh, Pt, Pd, Fe, Ni, Cu and Co, the carrier is at least one selected from metal oxide, phosphate, molecular sieve, SiO2 and sulfonated carbon, the metal oxide is at least one selected from Al2O3, Nb2O5, Nb2O5—Al2O3, Nb2O5—SiO2, TiO2, ZrO2, CeO2 and MoO3; the phosphate is at least one selected from NbOPO4 and ZrOPO4; and the molecule sieve is at least one selected from Nb-SBA-15, Nafion, H-ZSM-5, H-Beta and H-Y.

Abstract: The present invention discloses a method for decomposing medium-/low-grade scheelite, specifically comprising steps of: grinding medium-/low-grade scheelite, decomposing in an autoclave by using sodium phosphate and activated magnesium fluoride as leaching agents, and treating by solid-liquid separation to obtain crude sodium tungstate solution and residue. In this way, the medium-/low-grade scheelite is decomposed. Magnesium chloride is added in a sodium fluoride solution to prepare activated magnesium fluoride as a leaching agent. The present invention has the advantage that the high-efficiency decomposition of medium-/low-grade scheelite can be realized with low consumption of leaching agents, and the leaching cost can be greatly reduced in comparison to the existing decomposition processes using sodium hydroxide and sodium carbonate. This process is short in route, simple in operation, readily available and reliable in production equipment, and easy for industrialization.

Abstract: A method of preparing a vinyl collagen microsphere polyamide fiber composite material includes the following steps: step 1: modifying a collagen with methacrylic anhydride to obtain a vinyl collagen, then emulsifying and cross-linking the vinyl collagen to obtain vinyl collagen microspheres; step 2: treating a polyamide fiber substrate with formaldehyde to obtain a hydroxylated polyamide fiber substrate, treating the hydroxylated polyamide fiber with (3-mercaptopropyl)trimethoxysilane (MPS) to obtain a sulfhydrylated polyamide fiber substrate; and step 3: modifying the sulfhydrylated polyamide fiber substrate with the vinyl collagen microspheres to obtain the vinyl collagen microsphere polyamide fiber composite material.

Abstract: The present invention relates to the technical field of lithium metal batteries, and relates to a lithium metal battery electrolyte containing an aromatic compound as a diluent. The electrolyte contains a lithium salt, a solvent for dissolving the lithium salt, and a diluent; the diluent is an aromatic compound, and the diluent is used for inhibiting lithium dendrites generated due to uneven deposition of a lithium metal anode in the lithium metal battery during a cycle process, and is used for inhibiting the lithium metal anode in the lithium metal battery from reacting with the electrolyte.

Abstract: A superhydrophobic polypropylene porous film, including a polypropylene porous film substrate, titanium dioxide layers and a surface modifier layer, is disclosed. The titanium dioxide layers are deposited on the surface of the polypropylene porous film substrate by atomic deposition technology; a surface modifier is coated on the titanium dioxide layers; hydrophobic bonds are formed between the titanium dioxide layers and the surface modifier layer; the superhydrophobic polypropylene porous film has a water contact angle greater than 150 degrees, a rolling angle less than 10 degrees, an aperture of 0.1-0.4 ?m, a porosity of 50%-80%, a tensile strength of 30-50 MPa, and an elongation at break of 10%-30%.

Abstract: Microfluidic devices to efficiently remove particulate matter (PM) in air are provided, as are methods of fabricating and using the same. A device can include a channel having a structure configured to generate chaotic advective flow in air within the channel. The channel structure can include a plurality of SHMs disposed within the channel, where each SHM comprises a plurality of grooves each having a width of 200 ?m or less and a spacing between each groove of 200 ?m or less. The plurality of SHMs can be configured to introduce microvortices in air flow within the channel.

Abstract: A compound including a structure of Formula (I) and a preparation method thereof, wherein R1 is —OH, —CH2OH, or —OCOCH3; R2, R3, and R4 are independently —H, —CH3 or —F, and at least one of R2, R3, and R4 is —F. A method for treating a subject suffering from a viral disease includes administering an effective amount of said compound or a solvate thereof to the subject.

Abstract: A method for correcting infant crying identification includes the following steps: a detecting step provides an audio unit to detect a sound around an infant to generate a plurality of audio samples. A converting step provides a processing unit to convert the audio samples to generate a plurality of audio spectrograms. An extracting step provides a common model to extract the audio spectrograms to generate a plurality of infant crying features. An incremental training step provides an incremental model to train the infant crying features to generate an identification result. A judging step provides the processing unit to judge whether the identification result is correct according to a real result of the infant. When the identification result is different from the real result, an incorrect result is generated. A correcting step provides the processing unit to correct the incremental model according to the incorrect result.

Abstract: An image stitching method and apparatus are disclosed. The image stitching apparatus includes at least one processor and a memory. The processor may obtain a plurality of images at different viewpoints, estimate homographies of each of the plurality of images, generate an aligned image by aligning the plurality of images based on the homographies of each of the plurality of images, obtain a collective energy map by inputting the aligned image to a neural network, estimate a stitching line of the aligned image based on the collective energy map, and generate a stitched image by blending the aligned image based on the stitching line.

Abstract: The disclosure discloses a system for quality inspection in the entire process of inkjet printing manufacturing of display devices, which includes a substrate inspection module, a nozzle inspection module, an ink droplet inspection module, a coating thickness inspection module and a control module. Through design and matching of these modules, it is possible to realize a series of operations such as substrate inspection, nozzle inspection, flying ink droplet inspection, liquid coating inspection and cured coating inspection. The invention also discloses a corresponding quality inspection method for the entire inkjet printing manufacturing process for display devices.