Abstract: A multi-waveband-tunable multi-scale meta-material and a preparation method and a spectral detection method thereof are provided. The meta-material includes a stretchable layer, a non-stretchable support layer, a metal layer, and a nanoparticle layer sequentially stacked from bottom to top. The stretchable layer is a polydimethylsiloxane (PDMS) layer. The non-stretchable support layer is a polyimide (PI) layer. The metal layer is a gold layer. The nanoparticle layer is modified with a hydrophobic group. The preparation method includes vacuum-evaporating fluorosilane on a silicon wafer, spin-coating PDMS, heat-curing PDMS, conducting plasma cleaning, spin-coating and curing PI, sputtering gold, self-assembling the nanoparticles on a water surface to form the nanoparticle layer, transferring the nanoparticle layer to the metal layer, and etching according to a pattern.

Abstract: A method is applied to a compute node including a first storage medium and a second storage medium, a data access rate of the first storage medium is greater than a data access rate of the second storage medium which stores metadata of a first dataset, the first dataset is stored in a storage system connected to the compute node via a network. The method includes: obtaining a first input/output request; searching the first storage medium for metadata of first data based on the first input/output request; obtaining the metadata of the first data from the second storage medium when the metadata of the first data is not found in the first storage medium; and obtaining the first data from the storage system based on the metadata of the first data.

Abstract: Provided are a corrosion-resistant oxide dispersion strengthened steel and a method for preparing the corrosion-resistant oxide dispersion strengthened steel. The corrosion-resistant oxide dispersion strengthened steel includes in percentage by mass: Cr at 8.0 wt %-10.0 wt %, Al at 4.0 wt %-6.0 wt %, Ce at 0.2 wt %-0.8 wt %, Y at 0.2 wt %-0.4 wt %, O at 0.05 wt %-0.3 wt %, C less than or equal to 0.0016 wt %, and the balance of Fe.

Abstract: A packaging material for the non-destructive detection of food quality, a preparation method of the packaging material, and a detection method using the packaging material are provided. The packaging material includes a film material covering the outside of the food, where the film material includes a flexible base layer, an adhesive layer, a transparent conductive layer, and a nanostructured layer which are sequentially stacked from the outer side to the inner side. The flexible base layer is a polydimethylsiloxane (PDMS) layer. The adhesive layer is a polyimide (PI) layer. The transparent conductive layer is an indium tin oxide (ITO) layer. The nanostructured layer is a silver nanoparticles layer. The preparation method includes spin-coating and curing PI on PDMS, sputtering ITO, self-assembling silver nanoparticles on the transparent conductive layer, and etching according to a pattern.

Abstract: Provided are a corrosion-resistant oxide dispersion strengthened steel and a method for preparing the corrosion-resistant oxide dispersion strengthened steel. The corrosion-resistant oxide dispersion strengthened steel includes in percentage by mass: Cr at 8.0 wt %-10.0 wt %, Al at 4.0 wt %-6.0 wt %, Ce at 0.2 wt %-0.8 wt %, Y at 0.2 wt %-0.4 wt %, O at 0.05 wt %-0.3 wt %, C less than or equal to 0.0016 wt %, and the balance of Fe.

Abstract: A first terminal obtains a first transmission resource that is sent by an access network device and that is used by the first terminal to send data on a sidelink, where the sidelink is a wireless communication link between the first terminal and a second terminal, and the first transmission resource is a resource of an unlicensed spectrum. The first terminal performs a channel access procedure on the unlicensed spectrum. The first terminal sends first information to the access network device when the first terminal determines that a failure occurs in the channel access procedure performed on the unlicensed spectrum, where the first information is used to request to allocate a second transmission resource to the sidelink of the unlicensed spectrum.

Abstract: A fluidized catalytic conversion method for maximizing the production of propylene includes the steps of: 1) contacting a heavy feedstock oil with a catalytic conversion catalyst having a temperature of 650° C. or higher for reaction; 2) contacting a hydrocarbon oil feedstock having an olefin content of 50 wt % or more with the catalytic conversion catalyst after the reaction of step 1); 3) separating a first catalytic cracking distillate oil and a second catalytic cracking distillate oil from the resulting reaction products; 4) separating an olefin-rich stream from the first catalytic cracking distillate oil; and 5) recycling the olefin-rich stream. The method can effectively improve the yield of propylene and realize an effective utilization of petroleum resources.

Abstract: Provided are a recombinase polymerase amplification (RPA)-PAND based enterovirus virus typing detection kit and a rapid sensitive detection method, where the detection kit includes a PfAgo protein three gDNAs (g1/g2/g3), MB and its corresponding gDNA (gMB) combination for specifically detection of enteroviruses EV71, CVA6, CVA10, CVA16 and the universal enterovirus (EVU). RPA-HFMD-PAND rapid nucleic acid detection methods for typing detection of common enterovirus type A pathogens EV71, CVA6, CVA10, CVA16 and enterovirus universal EVU are successfully established based on PfAgo protein mediated target detection in combination with an RPA technology. The method has the advantages of high sensitivity, high specificity, low cost, relatively low position targeting restriction, simple reaction system and no aerosol pollution, and can conduct multi-channel nucleic acid detection.

Abstract: A process for producing high-purity ?-caprolactam includes the following steps: (1) cyclohexanone oxime is subjected to a gas phase Beckmann rearrangement reaction; (2) the reaction product obtained from step (1) is successively subjected to gas-liquid separation, solvent removal, and light impurity removal to produce a crude caprolactam; (3) the crude caprolactam is subjected to crystallization to produce a crystallization product and a crystallization mother liquor; (4) the crystallization mother liquor is subjected to crystallization to produce a crystal slurry. At least a part of the crystal slurry is returned to step (2) and/or step (3). The purification process can obtain high-purity caprolactam through only one crystallization and one mother liquor crystallization without reducing the overall yield of caprolactam.

Abstract: Provided is a portable automated chest-abdominal compression (CC-AC) device used in confined spaces and a manipulation method thereof, comprising: a compression mechanism having a strap fixing module, a compression plate connected to the strap fixing module and a compression piston arranged on one side of the compression plate; a detection module having a displacement sensor and a pressure sensor; a control module receiving compression depth and pressure, and obtaining a compensation value of time of a single compression according to the compression depth and a target depth, thereby controlling an action of a driving mechanism during the CC process; constructing an abdominal mechanics model according to the compression depth and pressure, and compensating the compression depth according to the target pressure by using the abdominal mechanics model, thereby controlling the action of the driving mechanism during the AC process.

Abstract: A preparation method a tunable transparent terahertz absorption film for enhancing thermal radiation includes: evaporating/sputtering an indium tin oxide (ITO) on one surface of a polyimide film, transferring graphene to the other surface of the polyimide film, preparing one electrode on the graphene, spin-coating an ionic gel, and preparing the other electrode on the ionic gel to form the tunable transparent terahertz absorption film; and changing bias voltages at two ends of the electrode, acquiring a terahertz time-domain signal of the tunable transparent terahertz absorption film to derive an absorption rate of the tunable transparent terahertz absorption film corresponding to the bias voltages, and placing the tunable transparent terahertz absorption film under sunlight/infrared light to acquire a heating effect. The preparation method utilizes the transparent absorption film of a graphene-polyimide-ITO structure to absorb terahertz waves of multiple bands, improving the heating effect.

Abstract: Embodiments of the present application relate to a method and apparatus of reporting buffer status. An exemplary UE includes: at least one receiving circuitry; at least one transmitting circuitry; and at least one processor coupled to the at least one receiving circuitry and the at least one transmitting circuitry, wherein the at least one processor is configured to: trigger a buffer status report (BSR) in response to a trigger condition associated with an application data unit (ADU) being satisfied; and generate buffer status information for the BSR.

Abstract: A method includes performing a triangular surface segmentation on a to-be-processed model to obtain a triangular surface model, the triangular surface model includes a plurality of triangles and a plurality of vertices, each triangle is associated with three vertices that are connected by connecting edges. The method also includes calculating ambient occlusion values respectively of the plurality of vertices, a first ambient occlusion value of a first vertex is calculated based on first one or more triangles associated with the first vertex. The method also includes calculating errors respectively associated with a plurality of connecting edges based on ambient occlusion values of the plurality of vertices, and collapsing a first connecting edge between two vertices based on the errors to obtain a simplified triangular surface model. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also contemplated.

Abstract: A data management method includes obtaining information about an application, where the information about the application includes but is not limited to one or more of I/O operation information of the application, running information of the application, and process information of the application; and formulating and executing a specific storage policy for specific information of the application.

Abstract: A computing cluster includes a plurality of computing nodes. A method includes: obtaining an execution characteristic parameter of an application; obtaining, based on the execution characteristic parameter of the application and a load model, running time periods of the application when the application runs on different computing nodes, where the different computing nodes have different configurations; and determining, according to a preset policy, a configuration of a computing node that executes the application.

Abstract: A file management method includes obtaining a storage path of a file; obtaining an attribute of the file through calculation based on the storage path and an attribute prediction model; and determining a storage policy for the file based on the attribute.

Abstract: Disclosed are a supported composite oxide catalyst and preparation and use thereof. The catalyst has the general formula: FeMoaSibXcOd, wherein X is a modified metal and is selected from alkali metals or alkaline earth metals; a=0.5-5, b=10-50, c=0.001-0.1, and d is the amount of oxygen element satisfying the chemical valence. The catalyst is prepared with the following method: (i) providing an acidic aqueous solution of a surfactant; (ii) dissolving an iron-containing compound and a complexing agent in the acidic aqueous solution, adding tetra C1-4 alkyl orthosilicate, and performing hydrolysis, crystallization and calcination to obtain a precursor; and (iii) forming a mixed liquid of the precursor, a molybdenum-containing compound and a modifying metal compound, drying same and calcinating the resultant, so as to obtain the supported composite oxide catalyst.

Abstract: A data processing apparatus and method are provided. The method includes: performing multi-level IR decomposition on original application code, extracting more abundant computation and data flow features to obtain an initial computational graph, and performing graph transformation processing on the initial computational graph to obtain a target computational graph, allowing an application corresponding to original application code to run in different systems and implement performance portability.

Abstract: A data management method includes obtaining information about an application, where the information about the application includes but is not limited to one or more of I/O operation information of the application, running information of the application, and process information of the application; and formulating and executing a specific storage policy for specific information of the application.

Abstract: A transcription service may receive a request from a developer to build a custom speech-to-text model for a specific domain of speech. The custom speech-to-text model for the specific domain may replace a general speech-to-text model or add to a set of one or more speech-to-text models available for transcribing speech. The transcription service may receive a training data and instructions representing tasks. The transcription service may determine respective schedules for executing the instructions based at least in part on dependencies between the tasks. The transcription service may execute the instructions according to the respective schedules to train a speech-to-text model for a specific domain using the training data set. The transcription service may deploy the trained speech-to-text model as part of a network-accessible service for an end user to convert audio in the specific domain into texts.