Abstract: A linkage system with LED projection and sound is provided, includes a sound apparatus, a linkage control apparatus and an LED direct-view projection apparatus. The LED direct-view projection apparatus includes an LED array, a beam-homogenizing and color-mixing component, and a projection module. The LED array is connected to the linkage control apparatus and configured to control a light-emitting state of each LED lamp bead in the LED array based on the to-be-displayed screen data. The LED lamp bead serves as a pixel unit. The beam-homogenizing and color-mixing component is arranged on an optical path where light emitted from the LED array travels. The projection module is arranged on an optical path where light emitted from the beam-homogenizing and color-mixing component travels.

Abstract: The present disclosure provides a pin bushing and a method of manufacturing the same. The pin bushing comprises a first axial section, a second axial section and an intermediate section, the first axial section and the second axial section are located at both ends of the pin bushing in the axial direction, the intermediate section is disposed between the first axial section and the second axial section, the intermediate section has an intermediate radially outer portion and an intermediate radially inner portion, and hardness values of the first axial section, the second axial section and the intermediate radially outer portion are greater than that of the intermediate radially inner portion.

Abstract: A composite quaternary ammonium salt cationic collector and its preparation method and uses involve: adding a halogenated alkyl group into an alkyl tertiary amine containing amido group to carry out a quaternization reaction to obtain an intermediate; and adding a catalyst into the intermediate to carry out a catalytic reaction to obtain a first mixture; adding an alkyl benzylamine into the first mixture to carry out an amidation reaction to obtain a second mixture; and desalting the second mixture to obtain a composite quaternary ammonium salt cationic collector; a molar ratio of the alkyl tertiary amine, the halogenated alkyl group, and the alkyl benzylamine is (1-1.4):(0.8-1.2):(1-1.4).

Abstract: The present application provides a method for fluorine separation and recovery from phosphate rock enhanced with a microbubble coupled silicon additive, which includes: mixing the phosphate rock, phosphoric acid, and an active silicon additive, and subjecting the mixture to reaction to obtain a slurry; subjecting the slurry to microbubble generation treatment to obtain a microbubble slurry, and subjecting the microbubble slurry to recycling and returning to the reaction, where a released volatile fluoride is recovered; and after completing the reaction, a defluorinated slurry is obtained; and subjecting the obtained defluorinated slurry to acid-decomposition reaction and then solid-liquid separation to obtain phosphoric acid and phosphogypsum.

Abstract: The present disclosure relates to a substituted aromatic compound represented by general formula (I), a preparation method therefor, a pharmaceutical composition comprising the compound, and use thereof for treating and/or preventing a disease or symptom in which a Kv1.3 potassium channel plays a role.

Abstract: The invention discloses an in situ polymerized flame retardant, derived from the following monomers: a diacid monomer A: where A1 is terephthalic acid, A2 is a phosphorus aromatic ring-containing reactive flame-retardant diacid monomer, A1+A2=100 mol %, A1=50 to 90 mol %, A2=10 to 50 mol %; and a diamine monomer B: one or more of diamine monomers containing 4 to 36 carbon atoms. In the present invention, a novel flame retardant is obtained by in situ polymerization of the phosphorus aromatic ring-containing reactive flame-retardant diacid monomers in semi-aromatic polyamide oligomers, which has advantages of no precipitation in the semi-aromatic polyamide and no influence on other properties of the semi-aromatic polyamide and has an excellent flame-retardant property.

Abstract: Disclosed herein are a battery cell housing, a battery cell, a battery, and an electric device. The battery cell housing defines a cavity configured to accommodate an electrode assembly, and the battery cell housing includes a first housing and a second housing. The first housing is electrically connected to a first tab of the electrode assembly. The second housing is fixed to the first housing in an insulated manner. The second housing is electrically connected to a second tab of the electrode assembly and the second tab is different from the first tab in polarity. The first housing includes a bulge electrically connected to the first tab, and the bulge extends in a direction approaching the second housing. Therefore, there is no need to provide a hole in the battery cell housing, thereby rendering the battery cell housing more integral.

Abstract: The present application provides a method for separating and purifying phosphoric acid and phosphogypsum from a wet-process phosphoric acid slurry, and phosphoric acid and phosphogypsum prepared thereby. The method is beneficial for the dissociation, precipitation and separation of colloidal silicon and carbon impurities, such that the aim of in-situ removal and rapid separation of colloidal impurities to obtain the ore slurry, from which impurities have been removed, during a reaction process for outputting phosphogypsum is realized, and a low-impurity phosphoric acid product and phosphogypsum product can be obtained after the ore slurry, from which impurities have been removed, has been further treated.

Abstract: An electrochemical device including a bipolar current collector. The bipolar current collector is hermetically connected to an outer package. Cavities independent of each other are formed on two opposite sides of the bipolar current collector. Each cavity contains an electrode assembly and an electrolytic solution. An electrode active material is disposed on at least one surface of the bipolar current collector. Adjacent electrode assemblies are connected in series. The electrochemical device according to this application not only improves the safety of the electrochemical device, but the electrode active material on the surface of the bipolar current collector also participates in a reaction process in the electrochemical device, so that the electrochemical device achieves both a high-voltage output and a relatively high energy density.

Abstract: Provided is a method for verifying fault-sand body matching by selective crude oil charging based on parallel displacement simulation.

Abstract: The present disclosure provides a tooling mold for brake disc manufacturing and a method for brake disc manufacturing. The tooling mold includes plugging segments, wherein a shape of each of the plugging segments is consistent with a shape of each of heat dissipation holes, and interference fit is achieved after plugging, an end portion of each of the plugging segments being fixedly connected with a chute through a connecting rod; and slider plates each of which adopts a curved structure with a uniform thickness, wherein each of the slider plates matches with each chute to realize position adjustment of the plugging segments.

Abstract: The present disclosure provides a tooling mold for brake disc manufacturing and a method for brake disc manufacturing. The tooling mold includes plugging segments, wherein a shape of each of the plugging segments is consistent with a shape of each of heat dissipation holes, and interference fit is achieved after plugging, an end portion of each of the plugging segments being fixedly connected with a chute through a connecting rod; and slider plates each of which adopts a curved structure with a uniform thickness, wherein each of the slider plates matches with each chute to realize position adjustment of the plugging segments.

Abstract: A polyamide molding composition is provided, including the following components in parts by weight: a PAXC/YC resin in 40 parts to 75 parts, a white pigment in 30 parts to 60 parts, and a dispersing agent in parts by weight that are 1.5% to 5% of the parts by weight of the white pigment; based on a molar percentage of the PAXC/YC, the PAXC/YC resin includes 60 mol % to 100 mol % of an XC unit and 0 mol % to 40 mol % of a YC unit; the XC unit consists of a 1,4-cyclohexanedicarboxylic acid unit and a diamine unit; the YC unit consists of a 1,4-cyclohexanedicarboxylic acid unit and a diamine unit.

Abstract: The present application provides a method for separating and purifying phosphoric acid and phosphogypsum from a wet-process phosphoric acid slurry, and phosphoric acid and phosphogypsum prepared thereby. The method comprises: adding an impurity-removing agent to a wet-process phosphoric acid slurry, and mixing same under the action of a microbubble external field, so as to obtain an organic phase containing colloidal impurities, and an ore slurry, from which impurities have been removed; and then sequentially subjecting the ore slurry, from which impurities have been removed, to crystallization and solid-liquid separation, so as to obtain phosphoric acid and phosphogypsum, from which impurities have been removed.

Abstract: The present invention relates to a polyester resin composition, a preparation method thereof and use thereof. The polyester resin composition includes a PCT resin, a white pigment, a reinforcing material, a polyester elastomer, and other additives. The polyester resin composition provided by the present invention has a strong binding force with a silica gel; when the polyester resin composition is made into an LED reflecting support, the LED reflecting support is not easy to separate from the silica gel in high temperature and high humidity environments, such that the service life of an LED lamp bead can be effectively prolonged; and meanwhile, the polyester resin composition has good toughness, and would not cause the problem of powder falling under repeated stress.

Abstract: The invention discloses a flame-retardant semi-aromatic polyamide derived from the following monomers: a diacid monomer A: where A1 is terephthalic acid or terephthalic acid and other diacid, terephthalic acid accounts for 50 to 100 mol % of A1, and A2 is [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid, A1+A2=100 mol %, A1=90 to 99 mol %, A2=1 to 10 mol %; and diamine monomer B: one or more of diamine monomers containing 4 to 36 carbon atoms. In the present invention, by an in situ polymerization, a specific flame-retardant monomer [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid is copolymerized in a semi-aromatic polyamide chain segment, excellent mechanical properties and low water absorption can be obtained.

Abstract: An electrochemical device includes a first electrode assembly, a second electrode assembly, and a packaging shell. The first electrode assembly and the second electrode assembly B are each located in a separate cavity in the packaging shell. Two opposite-polarity tabs of the first electrode assembly and the second electrode assembly are connected in the packaging shell. The connected two opposite-polarity tabs comprise a first tab extending out of the packaging shell. Such design of extending the tabs and the design of ion insulation between the hermetic cavities improve the charge and discharge performance and the product quality of the electrochemical device.

Abstract: The present disclosure relates to a method and apparatus for association detection for a human face and a human hand, an electronic apparatus and a storage medium. The method comprises: acquiring a first image, the first image being an image of a human object; performing feature extraction on the first image to obtain a first feature map of multiple dimensions; performing a feature fusion processing on the first feature map of multiple dimensions to obtain a second feature map of multiple dimensions, the dimensions of the second feature map corresponding to the dimensions of the first feature map in a one-to-one manner; detecting, on the basis of the obtained second feature map of multiple dimensions, a human face position and a human hand position associated with the same human object in the first image. The embodiment of the present disclosure enables easy and convenient association detection for human face and human hand.

Abstract: A method for cell winding and a system for cell winding are provided. The method includes feeding materials, preparing winding, embossing, and winding. The feeding materials is carried out to obtain a separator, a cathode electrode, and an anode electrode, where the cathode electrode satisfies that: after pre-winding, a first cathode tab of the cathode electrode and a second cathode tab of the cathode electrode are arranged with a surplus misalignment. A starting end of the separator, a starting end of the cathode electrode, and a starting end of the anode electrode are fixed to a winding device. The cathode electrode is embossed by a rolling device, such that the first cathode tab is aligned with the second cathode tab after winding. The embossing is configured to enable the surplus misalignment between the first cathode tab and the second cathode tab after the winding to be zero.

Abstract: The present invention provides a PA10T molding composite material that can be used to produce LED display light source reflection supports. The width of the crystallization peak at half maximum ?T1/2 is adjusted to be 3-10° C., the whiteness is adjusted to be less than 26, and the 460 nm light source reflectivity is adjusted to be less than 6.5%, such that the PA 10T molding composite material has the advantages of low blue light, high contrast, and high gray scale, and can satisfy requirements for a packaging process and long-term reliability, and can be used as a packaging product to manufacture high-contrast LED display light source refection supports applicable in multiple scenarios.