Abstract: A method for data transmission, a receiving end, a data source and a computer-readable storage medium are provided. The method may include acquiring a first transmission moment for key data of a newly accessed data source, and a second transmission moment for the key data of a previously accessed data source; generating a new first transmission moment according to the second transmission moment and a preset interval, in response to an interval between the first transmission moment and the second transmission moment being less than the preset interval; where the interval between the new first transmission moment and the second transmission moment is greater than or equal to the preset interval; and sending the new first transmission moment to the newly accessed data source, such that the newly accessed data source transmits the key data to the receiving end according to the new first transmission moment.

Abstract: Methods and systems are disclosed for applying augmented reality animations to an image. The methods and systems access an image and select an augmented reality (AR) experience to apply to the image, the AR experience comprising one or more AR element animations. The methods and systems repeatedly apply the AR experience to the image over a specified time interval to overlay the one or more AR element animations on the image. The methods and systems generate a video having a duration corresponding to the specified time interval in response to repeatedly applying the AR experience to the image, the video depicting the one or more AR element animations on the image.

Abstract: A video laryngoscope with blade identification is disclosed. The video laryngoscope may be capable of identifying a blade that has been coupled to the video laryngoscope. Identification of the blade may be based on an image from a camera of the video laryngoscope. The blade identification may be automatic. Blade identification may be performed via image recognition rules and/or machine learning (ML) models. Additionally, an image may be the only information used to determine blade identification. Based on the blade identification, various settings of the video laryngoscope may be adjusted (e.g., lighting or camera settings). Determined blade identification may be sent to a facility computer for maintaining patient records, procedure records, and/or inventory. Additionally, blade identification may be used in determining a video classification of intubation (VCI) score.

Abstract: A method for preparing a cationic lipid-based nanocarrier includes providing an organic solvent and an aqueous solution, adding compositions for forming a lipid-based nanocarrier and at least one kind of cationic polysaccharides respectively into the organic solvent and the aqueous solution according to respective solubility thereof, and flowing the organic solvent and the aqueous solution through a microfluidic device under the control of a micromixer, so as to mix the organic solvent and the aqueous solution in the microfluidic device, thereby obtaining the cationic lipid-based nanocarrier in a single-step process.

Abstract: A method for data transmission, a receiving end, a data source and a computer-readable storage medium are provided. The method may include acquiring a first transmission moment for key data of a newly accessed data source, and a second transmission moment for the key data of a previously accessed data source; generating a new first transmission moment according to the second transmission moment and a preset interval, in response to an interval between the first transmission moment and the second transmission moment being less than the preset interval; where the interval between the new first transmission moment and the second transmission moment is greater than or equal to the preset interval; and sending the new first transmission moment to the newly accessed data source, such that the newly accessed data source transmits the key data to the receiving end according to the new first transmission moment.

Abstract: A catalyst for gas-phase oxidation of 1,2,4,5-tetraalkylbenzene to prepare benzene-1,2,4,5-tetracarboxylic dianhydride, a preparation method for and an application of the catalyst, and a preparation method for benzene-1,2,4,5-tetracarboxylic dianhydride are disclosed. The catalyst according to the present invention comprises a carrier and a catalytically active component coating attached to the carrier; the catalytically active component coating comprises a first coating and a second coating; the first coating is close to the surface of the carrier, and the second coating is distant from the surface of the carrier; in the first coating, the mass ratio of a titanium element denoted by Ti to a vanadium element denoted by V is Ti/V1; in the second coating, the mass ratio of the titanium element denoted by Ti to the vanadium element denoted by V is Ti/V2, wherein Ti/V2=Ti/V1+?Ti/V, and ?Ti/V is within a range of 3 to 9.

Abstract: An integrated antenna device comprises a curved-surface transmitting array and an array antenna. The curved-surface transmitting army has a plurality of focuses to homogenize its radiation gains. The array antenna is arranged between the curved-surface transmitting array and the plurality of focuses. According to the control of an active RF module of the array antenna, the array antenna emits the first-order beam and performs beam scanning. The curved-surface transmitting array is used to focus the first-order beam to produce a second-order beam with high gain. The generation of the beamforming feed excitation weight of the active RF module makes the integrated antenna device have a beam scanning mechanism. The array antenna can be formed by feeder antennas A DSP dynamic groups the feeder antennas to form subarrays, the subarrays can generate different first-order beams for multi-point communications. The first-order beams can be scanned in an interleaved fashion.

Abstract: An arrayed RF system includes an expandable mother circuit carrier and sub-modules implemented with RF packaged radiation structures. The sub-modules are embedded onto the mother circuit carrier through plug-in interfaces to form a replaceable and expandable co-structural structure. The mother circuit carrier receives and up-converts an input intermediate-frequency signal, thereby generating first high-frequency signals. The sub-modules are horizontally embedded on the mother circuit carrier, arranged into a one-dimensional or two-dimensional array, and electrically connected to the mother circuit carrier. The RF packaged radiation structures respectively receive first high-frequency signals, thereby emitting first RF signals. The RF packaged radiation structures receive second RF signals, thereby generating second high-frequency signals. The mother circuit carrier down-converts the second high-frequency signals, thereby generating an output intermediate-frequency signal.

Abstract: A fabrication method of a SERS substrate includes (a) preparing a hydrophilic membrane; (b) dipping the hydrophilic membrane in an alcohol; (c) immersing the hydrophilic membrane in a chloride ion aqueous solution; and (d) depositing Ag or Au nanoparticles on the hydrophilic membrane by suction filtration to form the SERS substrate. The hydrophilic membrane includes 10˜20 wt % PVDF, PTFE, PC, PES, nylon, or mixtures thereof, 10˜20 wt % PVP, and 0.2˜1.6 wt % PMMA, PHEMA, or mixtures thereof.

Abstract: A fabrication method of a SERS substrate includes (a) preparing a hydrophilic membrane; (b) dipping the hydrophilic membrane in an alcohol; (c) immersing the hydrophilic membrane in a chloride ion aqueous solution; and (d) depositing Ag or Au nanoparticles on the hydrophilic membrane by suction filtration to form the SERS substrate. The hydrophilic membrane includes 10˜20 wt % PVDF, PTFE, PC, PES, nylon, or mixtures thereof, 10˜20 wt % PVP, and 0.2˜1.6 wt % PMMA, PHEMA, or mixtures thereof.

Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 2-furoic acid is disclosed. The method includes the steps of: (a) mixing the crude 2,5-furandicarboxylic acid composition with a solvent solution that includes alcohol so as to obtain a mixture; (b) heating the mixture to permit full dissolution of the crude 2,5-furandicarboxylic acid composition in the solvent solution; and (c) cooling the mixture to permit recrystallization of the 2,5-furandicarboxylic acid from the mixture so as to obtain purified 2,5-furandicarboxylic acid.

Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 2-furoic acid is disclosed. The method includes the steps of: (a) mixing the crude 2,5-furandicarboxylic acid composition with a solvent solution that includes alcohol so as to obtain a mixture; (b) heating the mixture to permit full dissolution of the crude 2,5-furandicarboxylic acid composition in the solvent solution; and (c) cooling the mixture to permit recrystallization of the 2,5-furandicarboxylic acid from the mixture so as to obtain purified 2,5-furandicarboxylic acid.

Abstract: A method for purifying a crude 2,5-furandicarboxylic acid composition including 2,5-furandicarboxylic acid and 5-formylfuran-2-carboxylic acid is disclosed. The method includes the steps of: (a) subjecting the crude 2,5-furandicarboxylic acid composition to complete dissolution in a solvent solution to obtain a mixture, the solvent solution including an organic solvent and water; (b) subjecting 5-formylfuran-2-carboxylic acid in the mixture to an addition reaction with sodium hydrogen sulfite to obtain an addition product; and (c) subjecting 2,5-furandicarboxylic acid to precipitation after step (b) to obtain purified 2,5-furandicarboxylic acid.

Abstract: A process for preparing 2,5-furandicarboxylic acid includes the steps of: subjecting an 5-acyloxymethyl-furfural compound to an oxidation reaction with an oxygen-containing gas in the presence of a basic aqueous solution and an oxidation catalyst containing a metal selected from the group consisting of ruthenium, rhodium, palladium, and combinations thereof to form an aqueous solution containing 2,5-furandicarboxylate, and converting the 2,5-furandicarboxylate to 2,5-furandicarboxylic acid.

Abstract: A handheld vacuum cleaner(10) includes a main body(22) with a handle(98) and a receptacle(150), a motor assembly(114) positioned within the main body(22), and a battery(138) configured to be selectively received within the receptacle(150) to power the motor assembly(114). The handheld vacuum cleaner(10) also includes a latch(490) movable between a blocking position that prevents removal of the battery(138) from the receptacle(150) and a released position that allows removal of the battery(138) from the receptacle(150). The latch(490) elastically deforms to move between the blocking position and the released position.

Abstract: A method for producing alkyl substituted benzene includes (a) providing a starting material selecting from the group consisting of furan, an alkyl substituted furan, 2-methylfuran, 2,3-dimethylfuran, 2,4-dimethylfuran, 2,5-dimethylfuran, 2,5-hexanedione, and combinations thereof, and (b) subjecting the starting material to a cycloaddition reaction with a monoene in the absence of solvent and in the presence of the metal triflate catalyst to produce an alkyl substituted benzene.

Abstract: Disclosed herein is a process for preparing 5-(chloromethyl)furfural which includes the steps of: subjecting a cellulosic biomass to a pretreatment so as to obtain a pretreated cellulosic biomass, the pretreatment including a dilute acid treatment and a steam explosion treatment conducted after the dilute acid treatment; mixing the pretreated cellulosic biomass with hydrochloric acid so as to obtain a mixture; reacting the pretreated cellulosic biomass with the hydrochloric acid in the mixture so as to produce a reaction product containing 5-(chloromethyl) furfural; and extracting 5-(chloromethyl)furfural from the reaction product with an organic solvent.

Abstract: A method for producing terephthalic acid comprises the steps of: subjecting methyl acrylate to contact with aluminum chloride so as to form a complex; adding isoprene to the complex to result in a Diels-Alder reaction which is kept at a temperature no higher than 50° C. by cooling so as to obtain a cyclic adduct product; subjecting the cyclic adduct product to separation so as to obtain a cyclic para-precursor; and subjecting the cyclic para-precursor to a chemical reaction so as to obtain terephthalic acid.