Abstract: A preparation method of thermadapt shape memory polymers includes: (1) synthesis of pendant hydroxyl groups functionalized epoxy oligomer using epoxy resin and alcohol amine; (2) synthesis of alkoxyl groups terminated silane crosslinking agent by isocyanate silane coupling agent and diamine; (3) crosslinked shape memory polymers were prepared by condensation reaction of pendant hydroxyl groups functionalized epoxy oligomer and alkoxyl groups terminated silane crosslinking agent. The thermadapt shape memory polymers show high glass transition temperatures and high tensile strength. The original shape of thermadapt shape memory polymers can be reconfigured to a new permanent shape as needed, and thus effectively solving the bottleneck problems of reprocessing or reshape in the traditional crosslinked polymers once after molding.

Abstract: A method is provided to purify [F-18]FEONM under a high pressure. The synthesis processes of [F-18]FEONM are integrated. An isolation process of non-toxic radio-high performance liquid chromatography (radio-HPLC) is used to purify the crude product. The method integrates a convention [F-18]FDG synthesizer and a novel radio-HPLC system together in a heat chamber. After radiofluorinating the precursor, the reaction product is purified with an alumina solid-phase column in advance to obtain the crude product while fluorine-18 is removed. Then, diphenyl semipreparative HPLC column is used for a final purification. A non-toxic solvent is used for mobile-phase eluting to remove the unreacted precursor and the phase-transfer solvent. The radiofluorination has a reaction yield about 50 percent (%). The method has an uncorrected radiochemical yield of 10˜20%. Both of the radio-HPLC and the radio-thin layer chromatography (radio-TLC) have radiochemical purity higher than 95%.

Abstract: The present invention discloses a modified bismaleimide resin and preparation method thereof; under conditions of N,N-dimethylformamide serving as a catalyst, biomass-based 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride, which is then dissolved in dichloromethane with a biomass-based eugenol; under tertiary amine conditions an esterification reaction takes place, and a fully biomass-based bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; same is used for preparing a modified bismaleimide resin.

Abstract: The patent discloses halophilic bacteria and a method for fermenting fish paste, belonging to the technical field of solid-state fermentation of aquatic products using microorganisms. Four kinds of screened halophilic bacteria were used as mixed starter culture to produce fish paste. The effects of the ratio of mixed starter culture, inoculation amount, fermentation temperature, fermentation time and salinity on fish paste were studied by determining physical and chemical indexes and performing sensory evaluation. The fish paste has the characteristics of high safety, low salinity, high flavor and nutrition value. This method of fish paste processing needs short fermentation time. The fermented products of fish paste with better flavor can be obtained by using the mixed starter culture.

Abstract: The present invention provides a surgical implant material for assisted repair of muscle mechanics and a method of preparing the same. The surgical implant material for assisted repair of muscle mechanics comprises a collagen compound within a net-like bacterial cellulose base material. A bacterial cellulose base material is placed into solution of collagen, treated via vortex shaking, dried at room temperature; and then immersed in an aqueous solution of an aldehyde compound under vacuum to react for 10 to 30 minutes, thereby producing the surgical implant material for assisted repair of muscle mechanics. The surgical implant material of the present invention can effectively improve the biocompability, and maintain the flexibility, smoothness and fitness of the base material to reduce the damage to surrounding tissues, thereby reducing the bleeding and inflammatory response.

Abstract: A light-emitting device includes a light-emitting layer, an elastic layer and a first carrier layer configured to carry the light-emitting layer. The first carrier layer has a through groove in which a light-emitting region of the light-emitting layer is located. The light-emitting device further includes a first carrier support layer stacked with the light-emitting layer, and the through groove of the first carrier layer is sealed by the first carrier support layer.

Abstract: Embodiments of the present disclosure provide a method, device, and computer program product for error evaluation. A method for error evaluation comprises in accordance with a determination that an error occurs in a data protection system, obtaining context information related to an operation of the data protection system; determining, based on the context information and using a trained deep learning model, a type of the error in the data protection system from a plurality of predetermined types, the deep learning model being trained based on training context information and a label on a ground-truth type of an error associated with the training context information; and providing the determined type of the error in the data protection system. In this way, it is possible to achieve automatic classification of errors in the data protection system, thereby improving the efficiency in error classification and saving the operation costs.

Abstract: The present invention relates to a paper material for producing a paper straw mainly, the paper material includes: a paper and a hot-melt adhesive material; wherein, the hot-melt adhesive material is provided on at least one surface of the paper, including an acrylic acid copolymer 40%˜45% w/w, an ammonia water less than 0.1% w/w or equal to 0.1% w/w and a water 55%˜60%. w/w The hot-melt adhesive material is presented as a dry hot-melt adhesive without viscosity and being transformed to a flow hot-melt adhesive with viscosity while being heated from 80° C.˜200° C.

Abstract: The present invention relates to a method for manufacturing a paper straw, the method comprising: a paper roll transmission step, a paper strip heating step, a bonding and shaping step and a cutting step. Wherein, a plurality of raw paper rolls face a connection position jointly to transmit a raw paper strip, the raw paper strip includes a paper material and a dry hot-melt adhesive. The dry hot-melt adhesive of the raw paper rolls is heated for changing into flow hot-melt adhesive. Then the raw paper rolls is transmitted to the connection position for rolling jointly, and the flow hot-melt adhesives are bounded on another raw paper strip to form a pipe. Finally, the pipe is cut to form at least one paper straw after the pipe exceeds a setting length.

Abstract: Nitrogen-doped carbon-based catalyst sheets, methods for producing such carbon-based catalyst sheets, and their use as electrocatalysts in oxygen reduction reaction (ORR). A carbon-based catalyst comprising:carbon-based sheets, wherein the carbon-based sheets comprise nitrogen and a transition metal, and wherein the carbon-based sheets further comprise a plurality of micropores, mesopores, macropores, or combinations thereof.

Abstract: Described herein are polymer blends comprising (a) a propylene impact copolymer comprising a polypropylene component present in a continuous phase and a first elastomeric component present in a disperse phase; and (b) a second elastomeric component, and the interfacial tension between the second elastomeric component and the impact copolymer is at least 1.2 mN/m. The polymer blends of present invention provides improved gloss and impact properties.

Abstract: A mobile device includes a system circuit board, a metal frame, a first feeding element, an RF (Radio Frequency) module, and one or more other antenna elements. The system circuit board includes a system ground plane. The metal frame includes a first portion and a second portion. The metal frame has a first cut point positioned between the first portion and the second portion. The first feeding element is directly or indirectly electrically connected to the first portion. A first antenna structure is formed by the first feeding element and the first portion. The second portion is excited by the first antenna structure using a coupling mechanism. The RF module is electrically coupled to the first feeding element. The metal frame further has a second cut point for separating the other antenna elements from the first antenna structure.

Abstract: Disclosed are a micrometer/nanometer silver-loaded barium titanate foam ceramic and a preparation method therefor. An organic additive is used as an auxiliary; deionized water is used as a solvent; nanometer barium titanate is used as a ceramic raw material; and same are mixed and ground so as to form a slurry. A pre-treated polymer sponge is impregnated in the slurry for slurry coating treatment and a barium titanate foam ceramic blank is obtained after drying; and then a barium titanate foam ceramic is obtained through sintering. Through dopamine modification, micrometer/nanometer silver is in-situ deposited on a skeleton surface so as to obtain a modified micrometer/nanometer silver-loaded barium titanate foam ceramic. The modified micrometer/nanometer silver-loaded barium titanate foam ceramic is then put into a newly prepared Tollens' reagent for further reduction so as to obtain a micrometer/nanometer silver-loaded barium titanate foam ceramic with a three-dimensional network skeleton structure.

Abstract: A mobile device includes a system circuit board, a metal frame, a first feeding element, a second feeding element, and an RF (Radio Frequency) module. The system circuit board includes a system ground plane. The metal frame includes a first portion and a second portion. The metal frame has a first cut point positioned between the first portion and the second portion. The first feeding element is directly or indirectly electrically connected to the first portion. A first antenna structure is formed by the first feeding element and the first portion. The second feeding element is directly or indirectly electrically connected to the second portion. A second antenna structure is formed by the second feeding element and the second portion. The RF module is electrically coupled to the first feeding element and the second feeding element, so as to excite the first antenna structure and second antenna structure.

Abstract: An integrated circuit including a multiplier-accumulator execution pipeline including a plurality of multiplier-accumulator circuits to, in operation, perform multiply and accumulate operations, wherein each multiplier-accumulator circuit includes: (i) a multiplier to multiply first input data, having a first floating point data format, by a filter weight data, having the first floating point data format, and generate and output a product data having a second floating point data format, and (ii) an accumulator, coupled to the multiplier of the associated MAC circuit, to add second input data and the product data output by the associated multiplier to generate sum data. The plurality of multiplier-accumulator circuits of the multiplier-accumulator execution pipeline may be connected in series and, in operation, perform a plurality of concatenated multiply and accumulate operations.

Abstract: Superhydrophobic electrothermal epoxy composites, their preparation and a self-healing method are disclosed. 1,4,5-oxadithiepane-2,7-dione and methylhexahydrophthalic anhydride were mixed and cured with epoxides to get self-healable epoxy resins; carbon nanotube/self-healable epoxy resin prepolymers were coated on self-healable epoxy resins and cured to get electrothermal epoxy composites; modified superhydrophobic copper powders were adhered on electrothermal epoxy composites and cured to get a kind of superhydrophobic electrothermal epoxy composites. The thermal resistance of superhydrophobic electrothermal epoxy composites is superior to existed technical solutions and they can simultaneously repair cracking and delamination and the healed samples still exhibit excellent superhydrophobicity.

Abstract: Disclosed are a barium titanate foam ceramic/thermosetting resin composite material and a preparation method therefor. An organic additive is used as an auxiliary; deionized water is used as a solvent; nanometer barium titanate is used as a ceramic raw material; and all of same are mixed and ground so as to form a slurry with a certain solid content. A pre-treated polymer sponge is impregnated into the slurry for slurry coating treatment, and then redundant slurry is removed and the polymer sponge is dried so as to obtain a barium titanate foam ceramic blank, and same is then sintered so as to obtain a barium titanate foam ceramic. A resin, being in a molten state and thermosettable, submerges the pores of the barium titanate foam ceramic, and a barium titanate foam ceramic/thermosetting resin composite material is obtained after a thermosetting treatment.

Abstract: In a method of preparing a modified barium titanate foam ceramic/thermosetting resin composite material, an organic additive is used as an auxiliary; deionized water is used as a solvent; nanometer barium titanate is used as a ceramic raw material; and these components are mixed and grounded to form a slurry. A pre-treated polymer sponge is impregnated in the slurry for slurry coating treatment and a barium titanate foam ceramic is obtained after drying and sintering. Then, through dopamine modification, micrometer/nanometer silver is deposited in situ on a skeleton surface. A resin, which is in the molten state and is thermosettable, is immersed into pores of the modified barium titanate foam ceramic, and the modified barium titanate foam ceramic/thermosetting resin composite material is obtained after a thermosetting treatment.

Abstract: A wearable electronic device includes a body having a first battery and a port electrically connected to the first battery, a band having a connector and a set of first conductors electrically connected to the connector, and a belt having at least one second battery, a set of second conductors and an input port electrically connected to the second battery. The band is connected to the port via the connector so as to be electrically connected to the body. The belt may removably attach to an outer surface of the band, and the second battery may transmit power to the first battery by combining the two sets of conductors. When the belt is removed, the power consumed by the second battery is replenished by an external power source connected to the input port, mastering the information at any time.

Abstract: A wearable electronic device includes a body having a first battery and a port electrically connected to the first battery, a band having a connector and a set of first conductors electrically connected to the connector, and a belt having at least one second battery, a set of second conductors and an input port electrically connected to the second battery. The band is connected to the port via the connector so as to be electrically connected to the body. The belt may removably attach to an outer surface of the band, and the second battery may transmit power to the first battery by combining the two sets of conductors. When the belt is removed, the power consumed by the second battery is replenished by an external power source connected to the input port, mastering the information at any time.