Abstract: A boot verification method is applied to an electronic device having a secure boot function. An algorithm selection identifier is set in the electronic device to indicate an algorithm used by the electronic device in a boot process, so that on the basis of supporting a plurality of algorithms, the electronic device can select, based on the algorithm selection identifier, a corresponding algorithm to perform boot.

Abstract: The present disclosure provides a humidity-stiffening polymer material, and a preparation method therefor and a use thereof. The humidity-stiffening polymer material includes the following raw materials: a monomer, an ionic liquid, a salt, a cross-linking agent and an initiator, wherein the monomer includes benzyl methacrylate, the ionic liquid includes an imidazole-based ionic liquid, and the salt includes a hygroscopic salt. The method for preparing the humidity-stiffening polymer material includes: mixing the raw materials to obtain a precursor liquid, performing reaction on the mixture after degassing, and drying the mixture to obtain the humidity-stiffening polymer material. The humidity-stiffening polymer material is applied to actuators, soft robots and wearable biomedical devices based on bionic design.

Abstract: The present disclosure provides a humidity-stiffening polymer material, and a preparation method therefor and a use thereof. The humidity-stiffening polymer material includes the following raw materials: a monomer, an ionic liquid, a salt, a cross-linking agent and an initiator, wherein the monomer includes benzyl methacrylate, the ionic liquid includes an imidazole-based ionic liquid, and the salt includes a hygroscopic salt. The method for preparing the humidity-stiffening polymer material includes: mixing the raw materials to obtain a precursor liquid, performing reaction on the mixture after degassing, and drying the mixture to obtain the humidity-stiffening polymer material. The humidity-stiffening polymer material is applied to actuators, soft robots and wearable biomedical devices based on bionic design. The present disclosure provides a humidity-stiffening polymer material, and a preparation method therefor and a use thereof.

Abstract: The present disclosure relates to the field of dielectric elastomers. In particular, provided are a dielectric elastomer precursor fluid, a preparation method therefor and the use thereof, a dielectric elastomer composite material, a flexible device, and a light-emitting device. The dielectric elastomer precursor fluid comprises an elastomer matrix, an ionic liquid and a solvent, wherein the volume fraction of the ionic liquid and the solvent is 5-45%. The dielectric elastomer precursor fluid has the advantages of a high conductivity, a high transparency and a good fluidity, and is beneficial for preparing a dielectric elastomer composite material having a high dielectric constant, a low elastic modulus and a high optical transparency, thus fully solving the problem that a high dielectric constant cannot be balanced with a low elastic modulus and a high optical transparency in a dielectric elastomer.

Abstract: The present disclosure relates to the field of dielectric elastomers. In particular, provided are a dielectric elastomer precursor fluid, a preparation method therefor and the use thereof, a dielectric elastomer composite material, a flexible device, and a light-emitting device. The dielectric elastomer precursor fluid comprises an elastomer matrix, an ionic liquid and a solvent, wherein the volume fraction of the ionic liquid and the solvent is 5-45%. The dielectric elastomer precursor fluid has the advantages of a high conductivity, a high transparency and a good fluidity, and is beneficial for preparing a dielectric elastomer composite material having a high dielectric constant, a low elastic modulus and a high optical transparency, thus fully solving the problem that a high dielectric constant cannot be balanced with a low elastic modulus and a high optical transparency in a dielectric elastomer.

Abstract: The present invention, belonging to the technical field of chemical sun-screening agent preparation, discloses a high-ultraviolet absorption lignin/chemical sun-screening agent microcapsule using lignin as a wall material and a preparation method therefor. The method of the present invention comprises the following steps: (1) dissolving 1-20 parts by weight of lignin in 100-200 parts by weight of an aqueous solution with a pH of 12, adjusting the pH of the solution to 7-10, and then removing insoluble substances by filtration to obtain a lignin solution; and (2) mixing 10-50 parts by weight of the lignin solution in step (1) with 1-10 parts by weight of a chemical sun-screening agent, and performing ultrasonic radiation under a power of 200-1500 W for 10 s to 25 min to obtain a lignin/chemical sun-screening agent microcapsule emulsion.

Abstract: The present invention relates to a process for preparing a black tea extract, which comprises extracting black leaf tea particles having a particle size of less than 250 ?m with an acidic solution at a temperature of less than 35° C.

Abstract: The present invention relates to a method for the production of aerated water-in-oil emulsions containing sucrose fatty acid esters. The invention further relates to aerated water-in-oil emulsions containing sucrose fatty acid esters, and to use of the composition for shallow flying and baking of food products. The method comprises a step wherein an oil is mixed with sucrose fatty acid ester, followed by aeration of this mixture. The obtained foamed oil is mixed with a water-in-oil emulsion.

Abstract: The present invention, belonging to the technical field of chemical sun-screening agent preparation, discloses a high-ultraviolet absorption lignin/chemical sun-screening agent microcapsule using lignin as a wall material and a preparation method therefor. The method of the present invention comprises the following steps: (1) dissolving 1-20 parts by weight of lignin in 100-200 parts by weight of an aqueous solution with a pH of 12, adjusting the pH of the solution to 7-10, and then removing insoluble substances by filtration to obtain a lignin solution; and (2) mixing 10-50 parts by weight of the lignin solution in step (1) with 1-10 parts by weight of a chemical sun-screening agent, and performing ultrasonic radiation under a power of 200-1500 W for 10 s to 25 min to obtain a lignin/chemical sun-screening agent microcapsule emulsion.

Abstract: A burner comprising a base cup, an annular flame splitter, and a flame cover. The base cup comprises an air inlet channel and two nozzles in communication with the air inlet channel and arranged upwards. The annular flame splitter arranged on the base cup comprises two Venturi tubes respectively arranged opposite the two nozzles. The annular flame splitter is separated from the base cup to form a gap, thus allowing primary air to enter the two Venturi tubes from the gap to be mixed with a fuel gas sprayed into the two Venturi tubes by the two nozzles to form a gaseous mixture. Groove openings are formed on the top of the annular flame splitter in communication with the mixing cavity. The flame cover covers the mixing cavity and limits the groove openings to define the outlet for the gaseous mixture, thus forming a flame ring.

Abstract: An electronic device includes a substrate, a gate electrode, a dielectric layer, a source electrode, a drain electrode, and a semiconducting layer formed from an organic semiconductor compound and a photo-responsive polymer. The resistance can be switched to a “low” state by irradiation, and can be switched to a “high” state by applying a gate bias voltage. This can be useful for a memory device.

Abstract: A process for preparing frozen particles having an average diameter of from 1 to 10 mm and comprising from 1 to 50 wt % of a frozen aqueous core and from 50 to 99 wt % of a fat-based shell is provided, the process comprising: providing a dispensing device having an inner nozzle and an outer nozzle which surrounds the inner nozzle; supplying an aqueous mix to the inner nozzle and a fat-based mix to the outer nozzle, thereby forming particles with a water-continuous core and a fat-continuous shell, and then dropping the particles into a refrigerant.

Abstract: A burner comprising a base cup, an annular flame splitter, and a flame cover. The base cup comprises an air inlet channel) and two nozzles in communication with the air inlet channel and arranged upwards. The annular flame splitter arranged on the base cup comprises two Venturi tubes respectively arranged opposite the two nozzles. The annular flame splitter is separated from the base cup to form a gap, thus allowing primary air to enter the two Venturi tubes from the gap to be mixed with a fuel gas sprayed into the two Venturi tubes by the two nozzles to form a gaseous mixture. Groove openings are formed on the top of the annular flame splitter in communication with the mixing cavity. The flame cover covers the mixing cavity and limits the groove openings to define the outlet for the gaseous mixture, thus forming a flame ring.

Abstract: A macromolecular emulsifier with switchable surface activity, and use thereof for preparation of polymer latex is disclosed. By using the macromolecular emulsifier with switchable surface activity as an emulsifier, a reversibly coagulable and re-dispersible polymer latex can be prepared by emulsion polymerization. The polymer latex can achieve the coagulation of latex particles by heating and aerating with nitrogen, air, inert gas and/or adding a small amount of alkali solution; the coagulated latex particles can be restored and re-dispersed into stable latex by aerating with carbon dioxide and/or adding a small amount of acid solution. The coagulation and re-dispersion process is reversible and is easy to control.

Abstract: A method for producing an edible composite of gas hydrate and ice is provided, the method comprising the steps of contacting an aqueous solution with carbon dioxide or nitrous oxide at a sufficiently high pressure to form a gas hydrate, but at a temperature preventing this; and then reducing the temperature of the solution to form the gas hydrate and ice; characterized in that the aqueous solution contains from 0.0001 to 2 wt % of an ice structuring protein. Frozen confections containing gas hydrates and methods for producing them are also provided.

Abstract: The present invention relates to a method for the production of aerated water-in-oil emulsions containing sucrose fatty acid esters. The invention further relates to aerated water-in-oil emulsions containing sucrose fatty acid esters, and to use of the composition for shallow flying and baking of food products. The method comprises a step wherein an oil is mixed with sucrose fatty acid ester, followed by aeration of this mixture. The obtained foamed oil is mixed with a water-in-oil emulsion.

Abstract: The invention is directed to an edible fat continuous product comprising: an overrun from 0 to 500%; and from 7 to 30 wt. % of sucrose fatty acid ester having a HLB value from 2 to 7; and from 0.01 to 5 wt. % of particulate anti-spattering agent.

Abstract: The present invention relates to a method for the production of aerated water-in-oil emulsions containing sucrose fatty acid esters. The invention further relates to aerated water-in-oil emulsions containing sucrose fatty acid esters, and to use of the composition for shallow flying and baking of food products. The method comprises a step wherein an oil is mixed with sucrose fatty acid ester, followed by aeration of this mixture. The obtained foamed oil is mixed with a water-in-oil emulsion.

Abstract: This invention relates to a coated frozen confection product comprising an aerated fat-continuous coating with an overrun of 20 to 200%, characterised in that the coating comprises from 0.05 to 5%, preferably from 1 to 5% by weight of at least one sucrose ester with an HLB value of between 1 and 9, wherein the coating has an average thickness of from 0.5 to 2.8 mm.

Abstract: An electronic device includes a substrate, a gate electrode, a dielectric layer, a source electrode, a drain electrode, and a semiconducting layer formed from an organic semiconductor compound and a photo-responsive polymer. The resistance can be switched to a “low” state by irradiation, and can be switched to a “high” state by applying a gate bias voltage. This can be useful for a memory device.