Abstract: A method and a system for building a short-wave, medium-wave and long-wave infrared spectrum dictionary are provided.

Abstract: A visible-light communication and illumination array includes a substrate and plural surface-emitting superluminescent diodes, SLDs, distributed across the substrate. A first set of SLDs of the plural SLDs generates a first light beam having substantially a first wavelength, a second set of SLDs of the plural SLDs generates a second light beam having substantially a second wavelength, and a third set of SLDs of the plural SLDs generates a third light beam having substantially a third wavelength. The array further includes a controller configured to encode at least one of the first light beam, the second light beam and the third light beam to transmit information. A combination of the first light beam, the second light beam and the third light beam produces white light.

Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of zirconium hydride moieties each bonded to at least two bridging oxygen atoms, wherein a zirconium atom of the zirconium hydride is bonded to the bridging oxygen atom, and wherein the bridging oxygen atom bridges the zirconium atom of the zirconium hydride moiety and a silicon atom of the microporous framework.

Abstract: Disclosed are a method for processing and recycling an ultrathin lithium foil and a product, which belongs to the field of lithium-ion batteries. According to the disclosure, a liquid-phase thinning agent is adopted to perform a contact reaction with a lithium metal, the fabricated ultrathin lithium foil has a thickness of 20 ?m or less, the surface is flat, the thickness can be randomly regulated, and the uniformity is good. The method of the disclosure can also recycle a lithium-containing byproduct generated in the preparation process. When the ultrathin metal lithium foil prepared by the disclosure is used as a metal lithium negative electrode of a lithium battery, the energy density of the battery can be improved, and the battery manufacturing cost is reduced. The ultrathin metal lithium foil can also be used to supplement lithium for other types of electrode materials, thereby a broad application prospect is achieved.

Abstract: A treatment system for domestic wastewater, relating to the technical field of wastewater treatment. The treatment system comprises a primary treatment system, a secondary treatment system, and a sludge treatment system; the secondary treatment system comprises a biochemical tank (21) and a sedimentation tank (22) that are sequentially connected; the biochemical tank (21) is connected to the primary treatment system; the secondary treatment system further comprises a second cylcone separator (23) and a power pump (24); one end of the power pump (24) is connected to a sludge outlet of the sedimentation tank (22) by means of a pipeline, and the other end of the power pump (24) is connected to a second feed pipe (232) of the second cylcone separator (23); a second underflow port (233) is connected to the biochemical tank (21) by means of the pipeline; a second overflow port (234) is connected to the sludge treatment system by means of the pipeline.

Abstract: According to various aspects of the present invention, a positive electrode composition for a lithium-ion secondary battery includes an active material capable of inserting and extracting lithium ions, and a conductor, wherein the active material is a lithium-nickel-cobalt-manganese complex oxide; the conductor is a carbon black and carbon nanotubes; the carbon black has a BET specific surface area of 100 to 400 m2/g, and a DBP absorption of 210 to 380 ml/100 g; and the carbon nanotubes have an average diameter of 7 to 15 nm.

Abstract: The present disclosure provides an image decoding method based on a wavelet transform. The method includes: performing entropy decoding on the compressed bitstream to obtain a reconstructed wavelet coefficient; dequantizing the reconstructed wavelet coefficient to obtain a dequantized wavelet coefficient; and performing N inverse wavelet transforms on the dequantized wavelet coefficient based on the wavelet transform model to obtain a reconstructed image, where the wavelet transform model is implemented based on a convolutional neural network (CNN).

Abstract: Disclosed is a multi-angle image semantic segmentation method for cadmium zinc telluride chips, belonging to the field of image quality augmentation. Firstly, construction of an n+1 dataset is performed by using acquire CZT images, and then pixel-level and latent-level knowledge representation is performed through a Pixel Aggregation Network PAN and a Latent Aggregation Network LAN in a Progressive Complementary Knowledge Aggregation network PCKA, which ultimately improves the quality and speed of CZT image segmentation. The method is suitable for applications that require multi-angle image acquisition and semantic segmentation, such as semiconductor material segmentation.

Abstract: The present disclosure discloses an integrated rapid treatment system for nuclear medical radioactive wastewater and an application method thereof. This system includes a wastewater collection unit; a pretreatment unit; a deep purification unit; a solid decay unit; a buffer unit; an online monitoring unit; and a control unit, wherein the online monitoring unit includes a radioactivity level detection module for detecting total ? and total ? radioactivity concentrations of inlet and outlet water of a medium in each unit, and a real-time monitoring module for treatment process parameters. The present disclosure discloses an integrated rapid treatment system for nuclear medical radioactive wastewater and an application method thereof, which can efficiently and quickly purify multi-nuclide organic low-level wastewater produced by a nuclear medical process, and realize rapid online monitoring and automatic control at the same time.

Abstract: It discloses a sustained release grouting material, a preparation method and an application thereof; the sustained release grouting material comprises a water swelling core and a water-soluble sustained release coating, the water swelling core is composed of bentonite, SAP and xanthan gum, which is granulated by disc granulator relying on the cohesiveness of xanthan gum; the water-soluble sustained-release coating is prepared by mixing water-soluble starch, polyvinyl alcohol, poloxamer, lubricant and plasticizer with deionized water to obtain a film-forming solution, and the film-forming solution is coated on a coating machine; the invention uses a coating machine to coat a layer of slow-release coating on the surface of the water-absorbing expansion core, and adjusts the coating thickness by controlling the mass ratio of the coating film-forming liquid to the water-absorbing expansion core particles, so as to realize the controllable water absorption onset time of the expansion core.

Abstract: A hardware acceleration method and system based on a scale-invariant feature transform algorithm in the field of hardware acceleration design of algorithms is disclosed. The architecture mainly includes two parts: keypoint detection and descriptor generation. Four buffers between these two parts are ping-ponged to increase the system processing speed. In the keypoint detection part, firstly, multi-layer Gaussian pyramid and Gaussian difference pyramid are calculated in parallel; through parallel calculation, the keypoints and gradient magnitudes and orientations are obtained. In the descriptor generation part, a keypoint region division strategy based on the circular keypoint region is provided, and the parallel calculation of a main orientation calculation module and a descriptor generation module are implemented. Finally, the output is obtained through descriptor rearrangement and dimensionality reduction module.

Abstract: The present disclosure discloses a method for estimating a contribution rate of elastic energy of a top plate during instability catastrophe of a deep gas-containing coal body, which specifically includes the following steps: acquiring gas pressure of a coal seam; acquiring a thickness of the coal seam and the top plate according to a borehole histogram; coring in the field, processing and pre-processing coal samples, and acquiring an elastic modulus of the top plate, gas-containing coal and standard specimens of a gas-containing coal-rock combination through indoor mechanical tests, respectively; deducing contribution of the elastic energy of the top plate with the help of a graphic area for a stress-strain curve, and obtaining a quantitative expression of the contribution rate of the elastic energy of the top plate based on the elastic modulus and the thickness of the top plate and the gas-containing coal.

Abstract: The present disclosure relates to the technical field of heat dissipation for electronic devices, and discloses a manifold microchannel heat sink based on directional optimization of hotspot areas, including a power module, a heat dissipation substrate, a cold source device, and a diverter manifold; the heat dissipation substrate is arranged on the power module, a microchannel is provided on a side of the heat dissipation substrate away from the power module and on a back of a heat generating area of the power module for carrying the power module and dissipating heat from the power module. According to the manifold microchannel heat sink based on the directional optimization of hotspot areas, the local heat dissipation performance of the power module may be preliminarily changed by optimizing the microchannel on the heat dissipation substrate, which avoids poor heat dissipation temperature uniformity in a multi-heat source system.

Abstract: Embodiments of this application disclose an interpolation filter training method and apparatus, a video picture encoding and decoding method, an encoder, and a decoder. According to the training method, a first sub-pixel picture obtained through interpolation by using a conventional interpolation filter is used as label data, to train a second interpolation filter, so that the second interpolation filter obtained through training can be directly used for a pixel value, obtained through interpolation, of a first fractional pixel position. Therefore, the label data is more accurate, and coding performance of a video picture is improved. According to the encoding method, during inter prediction, a target interpolation filter used for a current encoding picture block is determined from a set of candidate interpolation filters, and the encoder selects, according to content of the current encoding picture block, an appropriate interpolation filter to perform an interpolation operation.

Abstract: A long-endurance self-powered ocean buoy includes a buoy body, a power generation device and a gas bag base; the power generation device is mounted at a lower end of the gas bag base and includes a housing, a first power generation assembly, a second power generation assembly and a storage battery; the first power generation assembly includes a plurality of mutually-communicated gas chambers, hydraulic bags and control integration units. The lowest gas chamber is filled with a volatile working medium which can generate gas pressure by volatilization to drive power generation fans in turbines on a vent pipe communicating adjacent gas chambers for power generation. The second power generation assembly includes a plurality of temperature difference energy modules with one end surrounded by a phase change material and the other end in contact with the housing, so as to increase the power generation efficiency.

Abstract: A method for water drainage of a substrate includes creating, on a surface of the substrate, a designated hydrophobic region having hydrophobic surfaces of a hydrophobic film. Electronic circuitries are fabricated in the designated hydrophobic region of the substrate. The method further includes creating, on the surface of the substrate, a designated hydrophilic region having hydrophilic surfaces of the substrate. A drainage channel is formed in the designated hydrophilic region. The method further includes facilitating, based on capillary imbibition of the drainage channel, fluid flow from the designated hydrophobic region to a drainage/evaporation port to prevent damage of the electronic circuitries by moisture accumulation in the designated hydrophobic region.

Abstract: The present disclosure belongs to the field of water treatment, and specifically relates to a positively charged quaternary ammonium salt polymer catalyst and its preparation method and an application thereof. The catalyst provided by the present disclosure is prepared from a positively charged quaternary ammonium salt precursor through polymerization and anion exchange, wherein the positively charged quaternary ammonium salt precursor is the reaction product of an acrylate and a haloalkane; the acrylate is selected from the group consisting of dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, ethyl 3-(dimethylamino)acrylate and a mixture thereof; the haloalkane is selected from the group consisting of bromoundecane, bromododecane, bromotetradecane, bromohexadecane, bromoeicosane, chlorododecane, chlorotetradecane, chlorohexadecane, and a mixture thereof.

Abstract: The present disclosure provides a colorimetric nanosensor for detecting trace-levels of Hg2+ in environmental water, which is composed of Fe7S8 nanosheets, glutathione or its aqueous solution, 3,3?,5,5?-tetramethylbenzidine colorimetric solution, H2O2 aqueous solution, and NaAc-Hac buffer. The preparation method of Fe7S8 nanosheets is as follows: FeCl2·4H2O and CH4N2S are dissolved in ethylene glycol in a mass ratio of (2˜3):1, heated at 200° C. for 10˜15 hours, cooled, centrifuged, washed, and dried to obtain. The colorimetric nanosensor of the present disclosure can quickly and sensitively determine the trace-levels Hg2+ in environmental water. The colorimetric nanosensor of the present disclosure does not rely on large detection instruments, and the nanozymes used is low-cost, stable, and recyclable. It has important practical significance for accurate, fast, and low-cost detection of trace-levels of Hg2+ in environmental water.

Abstract: Described herein are zeolite Beta particles with radially arranged mesopores and methods of making the same. In one or more embodiments, a zeolite Beta particle may include a Beta zeolitic framework including a plurality of micropores having diameters of less than or equal to 2 nm. In embodiments, the Beta zeolitic framework may include alumina and silica. In embodiments, the zeolite Beta particles disclosed herein may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm. In embodiments, the plurality of mesopores may be arranged in a center-radial configuration, such that mesopores run from a central region of the zeolite Beta particle towards the edge of the zeolite Beta particle.

Abstract: Modified zeolites may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm, wherein the plurality of mesopores are ordered with cubic symmetry. The modified zeolite may include a plurality of hafnium hydride moieties each bonded to at least two bridging oxygen atoms, wherein a hafnium atom of the hafnium hydride is bonded to the bridging oxygen atom, and wherein the bridging oxygen atom bridges the hafnium atom of the hafnium hydride moiety and a silicon atom of the microporous framework.