Abstract: The present disclosure relates to the field of sodium-ion battery technology, and specifically, to a method for preparing carbon-coated sodium iron fluorophosphate from waste lithium iron phosphate and the application thereof.

Abstract: Epileptic seizures cannot be effectively controlled in many patients, thereby necessitating the development of novel therapeutic agents. Activation of the A1 receptor (A1R) by endogenous adenosine is an intrinsic mechanism to self-terminate seizures and protect neurons from excitotoxicity. However, targeting A1R for neurological disorders has been hindered by side effects associated with its broad expression outside the nervous system. Herein, the neural-specific A1R/neurabin/RGS4 complex that dictates A1R signaling strength and response outcome in the brain is targeted. A peptide was developed to block the A1R-neurabin interaction and enhance A1R activity. Anticonvulsant and neuroprotective effects are achieved through enhanced A1R function in response to endogenous adenosine in the brain, thus avoiding side effects associated with A1R activation in peripheral tissues and organs.

Abstract: Image sensors, isolation structures, and techniques of fabrication are provided. An image sensor includes a source of electromagnetic radiation disposed on a substrate, a pixel array disposed on the substrate and thermally coupled with source of electromagnetic radiation, and an isolation structure disposed on the substrate between the source of electromagnetic radiation and the pixel array. The isolation structure can define a first reflective surface oriented on a first bias relative to a lateral axis of the pixel array and a second reflective surface oriented on a second bias relative to the lateral axis. The isolation structure can be configured to attenuate residual electromagnetic radiation reaching a proximal region of the pixel array by pairing a first reflection and a second reflection of the electromagnetic radiation by the first reflective surface and the second reflective surface.

Abstract: Disclosed is a fiber composition comprising from about 60 wt. % to about 99 wt. % of a polymer base resin, wherein the polymer base resin comprises a chemically upcycled polybutylene terephthalate (PBT) component, which was derived from a post-consumer recycled (PCR) polyester, and from about 0.1 wt. % to about 40 wt. % of a reinforcing filler, wherein the combined weight percent value of all components does not exceed 100 wt. % and all weight percent values are based on the total weight of the fiber composition, wherein the fiber composition is in the form of a fiber, and wherein the fiber exhibits a tensile modulus of greater than 1950 MPa when tested in accordance with ISO 527.

Abstract: A recombinant type I allergen of Artemisia annua pollen (Art a 1), a coding gene, an expression method, and a purification method thereof are provided. By different combinations of codon optimization, different signal peptides, expression vectors and strains, the Art a 1 obtained reaches the expression level of more than 200 mg/L, with a purity of more than 99%, and the activity of the Art a 1 is equivalent to that of a native protein, and the Art a 1 can be used for the desensitization immunotherapy and diagnosis of Artemisia pollen allergy.

Abstract: Techniques for accessing shared content based on a recipient's subscriptions are described. A recipient user may receive a notification that a sender user shared content. The recipient user may request to output the shared content. The system may determine which content providers the recipient user is subscribed to, and may perform entity resolution processing to identify potential content, from the subscribed content providers, corresponding to the shared content. The system may output the identified potential content in response to the request to output the shared content.

Abstract: The present disclosure relates to a method for preparing ferroboron alloy-coated lithium iron phosphate, comprising: preparing ferrous phosphate and lithium phosphate, then mixing ferrous phosphate and lithium phosphate and adding a hydrazine hydrate solution to obtain a mixture which is then subjected to grinding, drying and then calcining to obtain a calcined material, adding pure water to the calcined material and grinding the calcined material in water to obtain a slurry, to which PEG, ferrous sulfate crystals and disodium EDTA are added and stirred to dissolve, then adding a sodium borohydride solution and a sodium hydroxide solution while stirring and maintaining a pH in the process at 8.5-10.5, reacting for 15-30 min to obtain a product, and filtering, washing and vacuum drying the product to obtain the ferroboron alloy-coated lithium iron phosphate. The method may reduce interface resistance while improving conductivity, corrosion resistance, oxidation resistance and density of the product.

Abstract: Disclosed are a core-shell structure membrane scale inhibitor and a preparation method therefor, wherein the core-shell structure membrane scale inhibitor has a core emulsion obtained via emulsion polymerization, and a shell structure obtained via ultraviolet-light grafting functional monomers. The preparation method has first preparing a core by using an emulsion polymerization process, adding a reactive photo-initiator in the later stage of polymerization, so that the reactive photo-initiator is grafted on the surface of the core, and finally initiating the polymerization of functional monomers by means of ultraviolet light to obtain a core-shell structure membrane scale inhibitor. The surface structure of the core is modified, such that a large number of ionizable groups are grafted on the surface thereof, and thus, a large number of scaling ions such as Ca2+, Mg2+ and Al3+ can be adsorbed.

Abstract: A recombinant type I allergen of Artemisia vulgaris pollen (Art v 1), a coding gene, an expression method, and a purification method thereof are provided. By different combinations of codon optimization, different signal peptides, expression vectors and strains, the Art v 1 obtained reaches the expression level of more than 200 mg/L, with a purity of more than 99%, and the activity of the Art v 1 is equivalent to that of a native protein, and the Art v 1 can be used for the desensitization immunotherapy and diagnosis of Artemisia pollen allergy.

Abstract: The present invention provides a biopsy needle and a puncture biopsy apparatus. The biopsy needle includes: an inner needle assembly, including a first plug-in portion plugged in with a fastener; an outer needle assembly, including a second plug-in portion plugged in with the fastener; and the fastener, including a third plug-in portion plugged in with the first plug-in portion, and a fourth plug-in portion plugged in with the second plug-in portion. According to the biopsy needle and the puncture biopsy apparatus provided in the present invention, the biopsy needle can be assembled and disassembled in a simple and fast way, helping reduce preparation time and preparation work for a surgery, thereby improving surgery efficiency.

Abstract: In one aspect, a preparation method for ferric phosphate includes the following steps: (a) feeding a ferrous sulfate solution and a phosphate solution including hydrogen peroxide simultaneously into a first reactor for mixing and reacting to obtain nucleated ferric phosphate; wherein a molar ratio of iron element to phosphorus element in the feeding process is 1:1, and a stirring speed is 500-600 r/min; (b) discharging the nucleated ferric phosphate to a second reactor for growth to obtain amorphous ferric phosphate slurry, and post-processing the amorphous ferric phosphate slurry to obtain the high tap density ferric phosphate; wherein a stirring speed is 120-150 r/min. The first reactor is a small-volume reactor, and the second reactor is a large-volume reactor.

Abstract: The invention relates to a method for preparing nicotinamide mononucleotide by using nicotinamide as a raw material, which comprises: in acetonitrile, dichloromethane, 1,2-dichloroethane or liquid sulfur dioxide as a solvent, allowing nicotinamide and tetraacetyl ribose to react as catalyzed by trimethylsilyl trifluoromethanesulfonate or tin tetrachloride, adjusting a pH value thereof to 3-5, adding a sodium methoxide solution thereto to react at ?15° C. to 5° C., adjusting a pH value thereof to 3-5, and subjecting the reaction mixture to microfiltration and nanofiltration using a membrane concentrator, thereby obtain a nicotinamide ribose solution; allowing the nicotinamide ribose solution to react as catalyzed by nicotinamide ribokinase in the presence of Mg ions, ATP and a buffer, thereby obtaining nicotinamide mononucleotide.

Abstract: In one aspect, a preparation method of iron phosphate includes: mixing pyrite cinder and an sulfite evenly in water to obtain a first mixed system; adding phosphoric acid and a buffer to the first mixed system to perform a leaching reaction; performing a first solid-liquid separation on a slurry obtained from the leaching reaction to obtain a first filtrate and a first residue; introducing air into the first filtrate and then performing a first stirring reaction on the first filtrate; performing a second solid-liquid separation on a slurry obtained from the first stirring reaction to obtain a second filtrate and a second residue; and calcining the second residue to obtain iron phosphate.

Abstract: A speaker includes a frame, a vibration assembly and a magnetic circuit assembly. The vibration assembly is assembled on the frame. The magnetic circuit assembly is assembled on the frame. The vibration assembly includes a voice coil and a piezoelectric element, the voice coil and the piezoelectric element are arranged coaxially, and the voice coil is between the piezoelectric element and the magnetic circuit assembly.

Abstract: In one or more embodiments, a chip may be formed with a first set of contacts on a first surface layer and a second set of contacts on a second surface layer opposite the first surface layer. The first set of contacts may be communication (IO) contacts and the second set of contacts may be power contacts, including ball grid array (BGA) balls and capacitors. A PCB may be configured with a chip receiving area capable of receiving the second set of contacts for various chips.

Abstract: The present disclosure provides a high-rate lithium iron phosphate positive electrode material comprising lithium iron phosphate and carbon coated on a surface of the lithium iron phosphate, wherein a primary particle of the material has a particle size of 30-70 nm. The material of the present disclosure has a small and uniform primary particle size, no large single crystal particles, and a high specific surface area, and the battery prepared with the material has a high capacity, good cycle performance, excellent rate performance and low temperature performance. The present disclosure also provides a method for preparing the high-rate lithium iron phosphate positive electrode material, which has a simple process, is environmentally friendly, does not need precursors or expensive equipment, and has low cost.

Abstract: The present invention provides benzocyclobutene resins containing olefinic bonds and preparing methods thereof, which relate to a technical field of high-performance resins. The resin structural formula of the present invention is: wherein R1, R2 and R3 are benzocyclobutenyls or hydrogen atoms, at least one of R1, R2 and R3 is a benzocyclobutenyl; R4, R5 and R6 are alkyls, vinyls or hydrogen atoms and are identical with each other; the preparing method thereof is to prepare the benzocyclobutene resin by reacting unsaturated resins of different molecular weights with halogenated benzocyclobutene through Heck reaction. The conditions for preparing the benzocyclobutene resin are mild and easy to produce, and the resin formed by ring-opening polymerizing and curing through further heating which has high crosslinking density, good heat resistance, good resin smoothness, and extremely low dielectric constant and dielectric loss performance, so it is a good photoelectric material.

Abstract: A message transmission method for a roadside equipment includes the following steps. A plurality of external sensor information is received. A road intersection sign phase information and a road map information are inputted. An object position analysis, a speed analysis, and an sign analysis in object moving direction are performed based on the external sensor information, the road intersection sign phase information, and the road map information, and a classification of dangerous objects in different groups is outputted. According to a current transmission bandwidth limitation and the classification of the dangerous objects, a dangerous object message with a higher classification of the dangerous objects is preferentially selected and transmitted within available transmission bandwidth.