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.

Abstract: A disk lock management method, apparatus, and system are disclosed. The method is performed by a first node, including: sending an obtaining request to a data storage system, where the obtaining request is used to request to obtain a disk lock; receiving a release request, where the release request is used to request the first node to release the disk lock; and sending, a release message to the data storage system, where the release message is used to release the disk lock. This method avoids frequent application and releasing operations performed on the disk lock, reduces disk IO resource occupancy caused by application and releasing of the disk lock, and improves overall system performance.

Abstract: The present application provides a method of assessing metabolic competence and treating metabolic disorders, including cardiovascular disease, obesity, and diabetes.

Abstract: A disk lock management method, apparatus, and system are disclosed. The method is performed by a first node, including: sending an obtaining request to a data storage system, where the obtaining request is used to request to obtain a disk lock; receiving a release request, where the release request is used to request the first node to release the disk lock; and sending, a release message to the data storage system, where the release message is used to release the disk lock. This method avoids frequent application and releasing operations performed on the disk lock, reduces disk TO resource occupancy caused by application and releasing of the disk lock, and improves overall system performance.

Abstract: Disclosed are a ferrite catalyst, its preparation method and use. The catalyst has a formula of FeAaDbOc, wherein A is Mg atom, Zn atom or a mixture of these two atoms in any ratio; D is one or more atoms elected from the group consisting of Ni, Co, Mn, Ca, Mo or V; a=0.01˜0.6; b=0˜0.30; c is a number satisfying the valence. The catalyst is prepared by a method comprising mixing the metal oxide precursors according to the chemical ratios and grinding by ball milling to obtain the ferrite catalyst. The catalyst exhibits excellent activity and selectivity when used in a reaction for preparing butadiene by oxidative dehydrogenation of butene. The preparation of the catalyst is simple, controllable and well repeatable, with reduced waste water and waste gas during preparation.

Abstract: A method of connecting three-dimensional structured meshes to form a conformal mesh, for solutions of flow problems, including: forming an interface by overlaying surfaces of two structured meshes; defining an interface set of mesh points in the interface; merging mesh points in the interface set that are within a predetermined distance of each other and projecting mesh points of one mesh in the interface that are within a predetermined distance of a line of the other mesh; generating an interface layer in the form of an unstructured mesh; and inserting a node at the center of each hexahedra, and producing an unstructured layer of cells between the two structured meshes by joining the nodes to the mesh points of the interface layer.

Abstract: A casing treatment for a fan or compressor stage 10 of a gas turbine engine comprises circumferential grooves 16A, 16B, 16C, 16D and 16E which extend in a series disposed between the leading edges 20 and trailing edges 22 of blades 6 of a fan or compressor stage 10. The grooves 16 vary in depth d in order to optimise the stall margin of the fan or compressor stage 10 while preserving peak efficiency.