Abstract: This application discloses an earphone and an earphone assembly. The earphone includes a housing, a speaker, a main circuit board, and a battery. All of the speaker, the main circuit board, and the battery are mounted in the housing. The main circuit board is located between the speaker and the battery. The main circuit board is disposed in an inclined manner relative to the speaker. A risk that the speaker of the earphone generates current noise is low, and sound quality of the earphone is good.

Abstract: Stabilized porous silicon particles are disclosed. The particles include a porous silicon particle comprising a plurality of interconnected silicon nanoparticles and (i) a heterogeneous layer comprising a discontinuous SiC coating that is discontinuous across a portion of pore surfaces and across a portion of an outer surface of the porous silicon particle, and a continuous carbon coating that covers outer surfaces of the discontinuous SiC coating, and remaining portions of the pore surfaces and the outer surface of the porous silicon particle, or (ii) a continuous carbon coating on surfaces of the porous silicon particle, including the outer surface and pore surfaces. Methods of making the stabilized porous silicon particles also are disclosed.

Abstract: The heat pump system comprises an indoor unit and an outdoor unit communicated through a refrigerant pipeline. The outdoor unit comprises a compressor, a first heat exchanger, a first throttling device, and a change-over valve. The indoor unit comprises a second heat exchanger. A heat storage unit is arranged on the refrigerant gas-phase pipeline between the indoor unit and the outdoor unit, the heat storage unit comprising a first branch and a second branch arranged in parallel. The first branch is provided with a heat storage heat exchanger and a second throttling device, and the second branch is provided with a control valve device capable of cutting off refrigerant flowing through the second branch in a controlled manner. The heat pump system can operate in a cooling mode, a heating mode, a heat storage and heating mode, and a defrosting mode.

Abstract: Flexible scheduling, self-healing, high-utilization strong stability for cellular network communications are discussed. Cellular network communication settings and strategies are developed with communication interval, transmit power data rate, channel delay, spectrum occupancy, source coding, receiving sensitivity, channel coding, signal-to-noise ratio, packet loss rate, channel occupancy rate, reception frequencies frequency band size of data package transmission frequencies, data package structure, modulation scheme, information coding scheme, antenna configuration.

Abstract: Examples of the present disclosure provide a terminal box for motor and a motor. 1. A terminal box for a motor, the terminal box comprising: a body defining space for a terminal block for connecting inner cables to outer cables; a first mounting structure on the body matching a second mounting structure on a housing of a motor, wherein the body is turnable around an axis within a set angle when mounted on the second mounting structure; and a first positioning structure on the body matching a second positioning structure on the housing, wherein the first positioning structure cooperates with the second positioning structure to lock the body against turning.

Abstract: A method and system for extracting a target signal based on maximum correlated kurtosis deconvolution are provided, which relate to a field of signal processing. The method includes: obtaining a microwave signal of a brain of a subject to be tested; filtering the microwave signal by using maximum correlated kurtosis deconvolution to obtain a filtered signal; performing mode decomposition on the filtered signal by using a complete ensemble empirical mode decomposition with adaptive noise to obtain a target response signal; and performing image reconstruction on the target response signal by using a delay sum beamforming to obtain a target bleeding image.

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon-and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

Abstract: A lithium-ion battery includes an anode current collector, a cathode current collector, an anode disposed on and/or in the anode current collector, a cathode disposed on and/or in the cathode current collector, and an electrolyte ionically coupling the anode and the cathode. The electrolyte includes (1) a lithium salt composition, (2) a co-solvent composition, and (3) a diluent composition. In some embodiments, the lithium salt composition includes lithium bis(fluorosulfonyl) imide (LiFSI), the co-solvent composition includes dimethyl carbonate (DMC) and/or ethyl propionate (EP), and the diluent composition includes 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluropropyl ether (TTE). In some embodiments, the anode includes composite particles including carbon and silicon, wherein the composite particles include pores and at least some of the silicon is nanosized silicon in the pores.

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

Abstract: The present invention belongs to the technical field of water treatment, and in particular to a magnetic powder strengthened method for removing nitrate nitrogen and inorganic phosphorus, which includes the following steps: (1) mixing permanent magnetic material powder with paramagnetic Fe3O4 powder, and magnetizing the mixture in a magnetic field to prepare magnetic powder; (2) adding the magnetic powder directly or in a form of granular filler into a water treatment reaction vessel; and (3) allowing the to-be-treated water to enter the water treatment reaction vessel, performing a chemical reaction of removing nitrate nitrogen and inorganic phosphorus in the presence of a reducing agent, and discharging the water after the reaction is completed. By adopting the method of the present invention, a uniform and fine magnetic field can be provided, thus the reaction efficiency is improved, and the process is simplified and the cost is lowered.

Abstract: A method for etching materials in which organic solvents are added to the etching mixture and combined in a mixing arrangement. When agitated organic materials mix with the etching agent and interact with the underlying material to form a shield around the etched areas that prevents the additional interaction of water with the newly etched areas and enables the etching of silicon oxides (SiOx) but does not oxidize Si. This method leads to milder reactions with less heat generation and avoids the safety hazards associated with conventional etching methods.

Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.

Abstract: The present disclosure belongs to the technical field of image processing, and provides a multi-modal image classification system and method using an attention-based multi-interaction network. The present disclosure utilizes a U-net network structure to fuse low-level visual features and high-level semantic features. An attention network is introduced to solve the problem of weak feature discrimination, and high attention is given to discriminative features, so that the attention network plays an important role in the final classification process. A sufficient multi-modal interaction mechanism is introduced, so that more effective correlation information and discriminative information are obtained among a plurality of modalities, and sufficient interaction among the plurality of modalities is completed, thereby solving the problems of weak feature discrimination and insufficient interaction among modalities in a multi-modal image classification task.

Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.

Abstract: An image recognition method and system of convolutional neural network based on global detail supplement, as follows: acquire the image to be recognized and then input it to trained feature extraction network for feature extraction, and obtain features of each stage; learn detail feature according to the image to be tested, and extract the detail feature map; use the self-attention mechanism to fuse the feature map and detail feature map output at the last stage to obtain global detail features; fuse the global detail feature and the features in each stage to obtain the features after global detail supplement; and classify according to the features after global detail supplement, and the category of the maximum value after calculation is the image classification result. The invention constructs a convolution neural network based on global detail supplement, and uses progressive training for image fine granularity classification, further improving fine granularity classification accuracy.

Abstract: The application belongs to the technical field of image segmentation, in particular to an adaptive semi-supervised image segmentation method based on uncertainty knowledge domain and a system thereof, including the following steps: the image to be segmented is acquired; and the image to be segmented is segmented based on the acquired image to be segmented and the preset image segmentation model; wherein, the semi-supervised segmentation model is adopted for the image segmentation model, and the image sample features of the acquired image to be segmented are extracted based on the constructed uncertainty knowledge base. Based on the domain adaptation of feature migration, the extracted image sample features are migrated to the semi-supervised segmentation model, so that the image to be segmented is segmented.

Abstract: A heat pump system and a control method thereof. The heat pump system includes: a compressor; an indoor heat exchanger; an outdoor heat exchanger configured as an interlaced heat exchanger having at least two refrigerant flow paths; a plurality of throttling elements; and a first type four-way valve and a second type four-way valve; in a local defrosting mode, refrigerant flows sequentially from the exhaust port of the compressor through at least one of the at least two refrigerant flow paths of the outdoor heat exchanger, the throttling element, at least another of the at least two refrigerant flow paths of the outdoor heat exchanger and the suction port of the compressor.

Abstract: A heat pump system includes a compressor; an indoor heat exchanger; an outdoor heat exchanger configured as an interlaced heat exchanger having at least two refrigerant flow paths; a plurality of throttling elements; and a first type four-way valve and a second type four-way valve, with ports thereof respectively connected to the inlet and the outlet of the compressor, the indoor heat exchanger, and one of the at least two refrigerant flow paths of the outdoor heat exchanger; in a local defrosting mode, refrigerant from the outlet of the compressor flows respectively through the indoor heat exchanger and at least one of the at least two refrigerant flow paths of the outdoor heat exchanger, and then sequentially through the throttling elements, at least the other of the at least two refrigerant flow paths of the outdoor heat exchanger, and the inlet of the compressor.

Abstract: A heat pump system and a control method thereof. The heat pump system includes a compressor; a heat storage heat exchanger, the pipeline connection of which is configured to be disconnectable from the heat pump system; an indoor heat exchanger and an outdoor heat exchanger; a plurality of throttling elements; and a first type four-way valve and a second type four-way valve, the ports of which are respectively connected to the air inlet and the air outlet of the compressor; the unconnected ports of the first type four-way valve are respectively connected to the outdoor heat exchanger and the heat storage heat exchanger; and the unconnected ports of the second type four-way valve are respectively connected to the indoor heat exchanger and connected to the port connected to the air inlet through a capillary or on-off valve; in a combined defrosting mode, the refrigerant dissipates heat from the indoor heat exchanger and the outdoor heat exchanger respectively.