Abstract: Guaianolide oligomers 1-4 are represented by structural formula (I), a preparation method thereof, and a pharmaceutical composition thereof and the use thereof. The preparation method includes: the preparation of guaianolide diene via epoxy isomerization from arglabin-DMA, and a Diels-Alder reaction between the diene and sesquiterpenoid or oligomeric sesquiterpenoid containing ?, ?-unsaturated ?-lactone fragments and subsequent deprotection of NMe2 to obtain the guaianolide oligomers. The guaianolide oligomers inhibited the growth of human hepatoma cell lines HepG2, Huh7 and SK-Hep-1, and can form a pharmaceutical composition with a pharmaceutically acceptable carrier or excipient to be used for preparing an antihepatoma drug.

Abstract: The present disclosure relates to an application of Antarctic red pigment in a preparation of drugs for treatment and prevention of hyperuricemia, which belongs to the field of biomedicine. The present disclosure studies a fermentation product of existing fungi Geomycos sp. wnf-18C or Geomycos sp. wnf-15A, and finds that the Antarctic red pigment produced by the fermentation product has good therapeutic effects on hyperuricemia induced by high purines. Thus, this pigment has application value in the preparation of drugs for hyperuricemia induced by high purine.

Abstract: A disassembling and discharging device for battery recycling includes a crushing assembly, a high pressure tank, at least one pressure relief tank, and a filtering tank. The crushing assembly is provided with a first feed port and a first discharge port communicated with the first feed port; the high pressure tank is provided with a first inner cavity for containing discharging liquid, and the first inner cavity is communicated with the first discharge port; the pressure relief tank is provided with a second inner cavity, and the second inner cavity is communicated with the first inner cavity; and the filtering tank is provided with a third inner cavity, and the third inner cavity is communicated with the second inner cavity.

Abstract: A method for preparing a zinc manganate anode material is disclosed. The method includes the following steps: (1) preparing a solution A containing a manganese ion and a solution B containing zinc alkali; (2) dispersing an adsorption carrier into the solution B; (3) using an alkali solution as a base solution and adding the solution A, the solution B and an oxidant solution to the base solution while stirring; (4) conducting a solid-liquid separation of the materials after reaction to obtain a solid; and (5) washing, drying and calcining the solid to obtain a zinc manganate anode material.

Abstract: Disclosed in the present invention are an NCA positive electrode material precursor having a core-shell structure, a method for preparing same, and use thereof. The precursor is a spherical or spheroid particle and consists of an outer shell and an inner core. The outer shell has a chemical general formula of NiaCobAlc(OH)2+c, wherein a+b+c=1, 0.45?a?0.55, 0.15?b?0.25, and 0.25?c?0.35; the inner core has a chemical general formula of NixCoyAlz(CO3)1?z(OH)3z, wherein x+y+z=1, 0.85?x<0.98, 0<y?0.15, and 0<z?0.15. The inner core has a porous structure. The inner core in the precursor of the present invention has a high nickel content and a porous structure, which can effectively buffer the volume change caused by subsequent charging and discharging of the NCA positive electrode material. The outer shell is a low-nickel material, which alleviates the volume change caused by the high nickel content.

Abstract: Provided are a template growth method for preparing a lithium cobaltate precursor and use. The method comprises: S1: mixing an aqueous ammonium metavanadate solution with a polyvinylpyrrolidone solution for hydrothermal reaction, and calcining the obtained precipitate under an aerobic atmosphere to obtain a vanadium pentoxide structure-directing agent, wherein the polyvinylpyrrolidone solution is prepared by dissolving polyvinylpyrrolidone in an alcohol; S2: adding the vanadium pentoxide structure-directing agent to a cobalt salt solution to obtain a turbid liquid, adding the turbid liquid, a carbonate solution, and a complexing agent in a parallel flow mode for reaction, and performing aging when the reaction material reaches a target particle size; and S3: performing solid-liquid separation on the aged material, and anaerobically calcining the obtained precipitate before aerobic calcination to obtain a lithium cobaltate precursor.

Abstract: Disclosed are an integrated method and an integrated system for resource recovery of source-separated urine. The integrated method for resource recovery of the source-separated urine includes: mixing the source-separated urine with an alkali metal peroxysulphate to obtain a mixture, and subjecting the mixture to evaporation-concentration by heating to obtain condensed water and a liquid compound fertilizer, where the liquid compound fertilizer includes urea, a phosphorus salt, and a potassium salt.

Abstract: Disclosed in the present invention are a wastewater adsorbent, and a preparation method therefor and the use thereof. The method comprises: mixing a carbon black powder and an ammonium salt solution, heating same for a hydrothermal reaction, followed by filtering, and washing the obtained filter residues with acid to obtain an ammonium-salt-modified carbon black; mixing and grinding a nickel-cobalt-manganese mixed salt and a sodium salt to obtain a mixture, mixing the mixture with an organic acid solution, evaporating same to remove water, subjecting same to a heating reaction in an inert atmosphere, and subjecting the reacted material to acid pickling to obtain a nickel-cobalt-manganese-sodium mixed salt; and mixing the nickel-cobalt-manganese-sodium mixed salt, the ammonium-salt-modified carbon black and a binding agent, and compacting, drying and heating same to obtain a multimetal-carbon-based adsorbent.

Abstract: Dry suspension granules for dry suspension, including the dry suspension made of the said dry suspension granules, and preparation method thereof are provided. Such-The dry suspension granules contain anionic gel and cationic polymer. The weight ratio of the anionic gel and the cationic polymer is (0.5-50):1.

Abstract: A touch control module of a touch control panel includes a circuit module and elastic conductors on a first surface of the circuit module. A support is arranged on the first surface of the circuit module. Positioning portions corresponding to the elastic conductors are provided on the support. Isolation members are arranged on the positioning portions. The elastic conductors at least partially extend into the positioning portions and abut against inner surfaces of the isolation members. Limiting portions of the isolation members abut against edges of the positioning portions to limit the isolation members to the positioning portions. The isolation members are thus limited to the positioning portions, and a stroke and a position of the isolation members are limited by using the support. The fitted structure is more stable. There is also described a home appliance with the touch control panel.

Abstract: The present disclosure discloses a porous and spherical cobalt oxide particle and a preparation method therefor. The preparation method includes the following steps: (1) mixing a cobalt salt solution, thiourea, and urea to obtain a mixed solution; (2) heating the mixed solution obtained in step (1) to allow a reaction in an aerobic atmosphere; (3) conducting solid-liquid separation (SLS) to obtain a solid product, and subjecting the solid product to calcination in an aerobic atmosphere to obtain a calcined material; and (4) washing and drying the calcined material obtained in step (3) to obtain the porous and spherical cobalt oxide particle. The cobalt oxide particle prepared by the preparation method has a larger specific surface area (SSA), which can significantly improve a specific capacity of a battery.

Abstract: A battery conveyor belt includes a base, a plurality of parallel connecting shafts arranged on the base at intervals, and a plurality of conveying wheels arranged on the connecting shafts and each include a stator sleeved on the connecting shaft and fixed thereto, a rotor, a coil sleeved outside the stator, a pusher, a receiver located on the rotor, a control circuit, and a hub; the rotor is sleeved outside the coil, and there is a gap between the rotor and the coil; the hub is sleeved outside the rotor, and a first bearing is connected between the hub and the rotor; the pusher is connected to the hub and the rotor; the rotor drives the hub to rotate through the pusher; the control circuit is electrically connected to the coil and the receiver; and when a battery is placed on the hub, the pusher is pressed against the receiver.

Abstract: A layered sodium ion battery positive electrode material and a preparation method therefor. The chemical formula of the layered sodium ion battery positive electrode material is NaxMnO2-a(MO4)a, wherein 0<x?1, 0.01?a?0.2, and M is one or two of W and Mo. The preparation method comprises: preparing a manganese salt solution and a basic potassium permanganate solution mixed with an M element material, wherein the M element material is one or two of molybdate or tungstate; adding the basic potassium permanganate solution to the manganese salt solution, and potassium permanganate solution to the manganese salt solution, and after a reaction is finished, carrying out solid-liquid separation to obtain a solid material; and washing and drying the solid material, mixing the solid material with a sodium source, and then sintering same to obtain a layered sodium ion battery positive electrode material.

Abstract: The present disclosure discloses a silicon-aluminum-iron composite material and a preparation method therefor and use thereof, and belongs to the technical field of wastewater treatment. The silicon-aluminum-iron composite material comprises an inner core and an outer shell wrapping the inner core; the inner core is a silicon-aluminum-based hollow sphere; the outer shell contains iron element; and there are holes on the silicon-aluminum-iron composite material. The silicon-aluminum-iron composite material of the present disclosure improves the specific surface area of the silicon-aluminum-iron composite material through structural adjustment. When it is used to adsorb heavy metal ions, the adsorption sites are correspondingly increased, which finally improves the adsorption capacity for heavy metal ions.

Abstract: The present application discloses a nickel-cobalt-manganese ternary positive electrode material nanorod and the use thereof. The chemical general formula of the nickel-cobalt-manganese ternary positive electrode material nanorod is LiNi1-x-y-zCoxMnyAlzO2, where 0<x<1, 0<y<1, and 0?z?0.05; the nickel-cobalt-manganese ternary positive electrode material nanorod has a section diameter of 50-200 nm and a length of 0.1-5 ?m. In the present application, a mixed metal salt solution of nickel, cobalt, manganese, aluminum and lithium and 8-hydroxyquinoline are subjected to complex-precipitation to generate a precipitate containing nickel, cobalt, manganese, aluminum and lithium, and then the precipitate is calcined to prepare a ternary positive electrode material nanorod.

Abstract: The present disclosure discloses a method for recovering active material from waste battery by desorption, comprising steps of: reacting wound cores of cathode and anode current collectors of waste battery with carbon tetrachloride and chlorine to obtain remaining wound cores, a solution of aluminum chloride in carbon tetrachloride and a first desorption powder of cathode; soaking the remaining wound cores and the first desorption powder of cathode in water to obtain soaked wound cores, a lithium salt solution and a second desorption powder of cathode; and reacting the soaked wound cores with nitric acid to obtain a copper nitrate solution and a desorption powder of anode. The waste lithium-ion battery only needs to be discharged and disassembled, and no shredding process is required, which avoids steps of shredding and sorting, reduces equipment investment. In addition, cathode and anode materials can be effectively recovered, and the product has high economic value.

Abstract: Disclosed is a preparation method for a Prussian blue sodium-ion battery positive electrode material, comprising: adding a first nonionic surfactant and an antioxidant into a sodium ferrocyanide solution to obtain a first solution; adding a second nonionic surfactant into a transition metal salt solution to obtain a second solution; in a protective atmosphere, adding the second solution into the first solution for a precipitation reaction; aging after the reaction has finished; collecting a precipitate, washing same, and carrying out vacuum drying on the washed precipitate; then soaking same in an alcohol solution containing sodium alkoxide; and then filtering same and steam drying to obtain a Prussian blue sodium ion battery positive electrode material. The method may relieve vacuum drying pressure and shorten drying time.

Abstract: Disclosed is a method for preparing a graphene-based sodium ion battery negative electrode material, including adding graphene oxide into ethanol absolute, carrying out ultrasonic treatment at a certain temperature to obtain a graphene oxide alcohol dispersion, then preparing a sodium hexanitritocobaltate solution, adding the graphene oxide alcohol dispersion into the sodium hexanitritocobaltate solution, carrying out solid-liquid separation to obtain a solid, isolating the solid from oxygen for calcination, and washing and drying to obtain a graphene-based sodium ion battery negative electrode material.

Abstract: This application discloses a method, apparatus, device, and storage medium for webpage rendering. A layout program code corresponding to the webpage is obtained; wherein the layout program code is written with at least one of imperative syntax and declarative syntax; the layout program code is parsed to obtain a tree component structure; wherein the tree component structure is composed of at least two components; layout information of the webpage is calculated based on the tree component structure and is added to the tree component structure; in response to determining that a rendering operation on the webpage is triggered, hybrid rendering of at least two components in the tree component structure with added layout information is performed from top to bottom.

Abstract: Methods and apparatuses for handover between different radio access technologies (RATs) are disclosed. According to an embodiment, an access network node receives, from a mobility management entity (MME), information indicating that one or more bearers for a terminal device cannot be handed over to one or more RATs different than long term evolution (LTE). The access network node determines whether to perform a packet switched (PS) handover for the terminal device based on the information.