Abstract: Disclosed is a measurement method for characterizing ferrite grain size and phase fraction of duplex stainless steel, including the steps of: conducting heat treatment on industrial pure iron and duplex stainless steel respectively; conducting wire cutting on the samples to obtain the samples to be tested; measuring ferrite grain diameters and phase fractions of the samples to be tested; testing the samples to be tested based on an improved U-shaped sensor probe to obtain test data; constructing a response relational database; obtaining the information of the sample of arbitrary ferrite grain size and phase fraction. The present invention adopts an innovative electromagnetic characterization method to measure single microcomponents in the steel and iron materials, which can be applied to the measurement of smaller samples and improve the measurement efficiency.

Abstract: The present disclosure discloses an autophagosome for promoting healing of a diabetic wound, and a preparation method and use thereof. In the preparation method of the autophagosome provided in the present disclosure, the autophagosome is extracted from a starved vascular endothelial cell, and the production of the autophagosome does not require induction by an additional reagent. The preparation method of the present disclosure involves simple extraction conditions, does not require an ultracentrifuge, and can be implemented in an ordinary laboratory. In addition, a yield of the autophagosome is higher than a yield of an exosome. The present disclosure provides an easy-to-implement and low-cost treatment method without toxic and side effects for a patient suffering from a chronic refractory wound. The autophagosome of the present disclosure can promote healing of a diabetic wound, and reduce physiological and psychological burdens caused by a diabetic wound to a patient.

Abstract: A method for predicting movement of a first plurality of keypoints of a first instrument comprises receiving, at a neural network model, a first location of the first plurality of keypoints and a first location of a second plurality of keypoints of a second instrument. The method further comprises determining a trajectory for the first and second pluralities of keypoints by: generating, using an attention model of the neural network model, a first and second tool-level graph indicating a spatial-temporal relationship between the first and second pluralities of keypoints, respectively; and generating a scene-level graph based on the tool-level graphs. The scene-level graph indicates a spatial-temporal relationship between the first and second pluralities of keypoints. The method further comprises generating an output image based on the determined trajectory. The output image includes an output location of the first and second pluralities of keypoints.

Abstract: A zero-watermarking method and device for BIM data, and a medium are provided, which relate to the field of watermarking information security technologies. Aiming at existing zero-watermarking method for the BIM data cannot resist primitive attacks, vertical stability of a model is used to construct a mapping relationship between primitive clusters and watermarking bits, calculate norms of primitives in each primitive cluster of the primitive clusters, take positivity and negativity of norm skewness measurement of the primitives as eigenvalues to construct a binary sequence, and performs an XOR process on the binary sequence and an original watermarking sequence to construct the zero-watermarking for the BIM data. Experimental results indicate that the zero-watermarking method has uniqueness, robustness and security.

Abstract: An antibody monomer, including an antibody, and a first DNA monomer or a second DNA monomer, where the antibody is an anti-vascular cell adhesion molecule 1 (antiVCAM1) antibody. Nucleotide sequences of the first and second DNA monomers respectively consist of SEQ ID NO:1 and SEQ ID NO:2. A kit including the antibody monomer and an initiator including a nucleotide sequence consisting of SEQ ID NO: 3 is provided. This application also provides a polyvalent antibody including a first antibody monomer and a second antibody monomer, where the first antibody monomer includes the first DNA monomer and the antiVCAM1 antibody, and the second antibody monomer includes the second DNA monomer and the antiVCAM1 antibody. This application further provides a mesenchymal stem cell modified with the antibody monomer or the polyvalent antibody, and an application thereof in the treatment of tissue damage.

Abstract: One embodiment of the present invention sets forth a technique for training a machine learning model to perform feature extraction. The technique includes executing a student version of the machine learning model to generate a first set of features from a first set of image crops and executing a teacher version of the machine learning model to generate a second set of features from a second set of image crops. The technique also includes training the student version of the machine learning model based on one or more losses computed between the first and second sets of features. The technique further includes transmitting the trained student version of the machine learning model to a server, wherein the trained student version can be aggregated by the server with additional trained student versions of the machine learning model to generate a global version of the machine learning model.

Abstract: A method for detecting a location of a plurality of keypoints of a surgical instrument comprises receiving, at a first neural network model, a video input of a surgical procedure. The method further comprises generating, using the first neural network model, a first output image including a first output location of the plurality of keypoints annotated on a first output image of the surgical instrument. The method further comprises receiving, at a second neural network model, the first output image and historic keypoint trajectory data including a historic trajectory for the plurality of keypoints. The method further comprises determining, using the second neural network model, a trajectory for the plurality of keypoints. The method further comprises generating, using the second neural network model, a second output image including a second output location of the plurality of keypoints annotated on a second output image of the surgical instrument.

Abstract: Disclosed is a prefabricated laminated slab made in accordance with a pretensioning fibermesh anti-cracking process and a manufacturing method thereof, and belongs to the technical field of fabricated structure engineering. The prefabricated laminated slab comprises a concrete layer, fiber grids, distribution bars and truss bars. The fiber grids are subjected to prestress tensioning and pouring to form a novel laminated slab with the pretensioning process, an overall pouring process of layered formworks is adopted, the construction problem during prestress tensioning of the fiber grids of the component can be effectively solved, the crack resistance of the laminated slab can be improved by adopting the prestress grids, the rigidity is increased, and the crack width under normal use conditions is reduced.

Abstract: Methods and systems for managing persistent volumes include mounting a distributed filesystem, located outside the processing node, to a local mount point on the processing node. Access to the local mount point is given to a container on the processing node.

Abstract: The invention provides a heat-not-burn cigarette product. The heat-not-burn cigarette product of the invention includes a cigarette product and a heater in matched use with the cigarette product. A sucking resistance when the cigarette product and the heater in matched use with the cigarette product are used together is P1, and a sucking resistance of the cigarette product is P2, wherein a ratio of P2/P1 is greater than or equal to 50%.

Abstract: The invention provides a slow-release fragrance and an application thereof in a tobacco product with Chinese-style flavor. The slow-release fragrance of the invention includes the following constituents in percentage by mass: 5% to 50% of a tobacco extract and 50% to 95% of a tangerine peel extract.

Abstract: The present disclosure discloses an impeller of a cardiac assist device, and the cardiac assist device. The impeller of the cardiac assist device includes an impeller shaft and a plurality of blades; a shape of the plurality of blades is set such that: blade cascades of the plurality of blades are of arc lines that recess towards a same side, and the blade cascade is a planar unfolding shape of an intersection line where a cylindrical surface intersects with the blade. In the present disclosure, a traditional wing-shaped blade cascade is changed, the blade cascades are of arc lines that recess towards the same side, this design enables blood to pass through the impeller at a smaller inflow angle and a greater outflow angle, the smaller inflow angle may generate a greater lift, so that the impeller obtains a greater output power, and meanwhile, a rotational flow can be prevented from being generated at an inflow port, such that the blood stably flows into the impeller.

Abstract: A method for forming a power module package includes providing a power module including an electrical element and an electrical connection portion; providing an electrical connection terminal including a connection end, an extension portion and an end cap, wherein the extension portion is extended between the connection end and the end cap and has a hollow cavity therein; disposing the electrical connection terminal on the electrical connection portion for electrically connecting the connection end to a corresponding electrical connection portion; packaging the power module and the electrical connection terminal through an encapsulant to form a packaged body; removing a portion of a surface of the packaged body for exposing the end cap of the electrical connection terminal; and removing the end cap to expose the hollow cavity of the electrical connection terminal, so as to form the power module package.

Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.

Abstract: A bubble detection device and a sample processing instrument are provided. The bubble detection device includes a body, a cover and a detection circuit board. The body includes a bottom wall and first and second side walls respectively extending from two sides of the bottom wall. The bottom, first and second side walls define a groove for accommodating a sample pipe of a sample processing instrument, and first and second holes are respectively provided in the first and second side walls to allow light from a light source to pass through the sample pipe. The cover includes a top portion for covering the groove and first and second side portions attached to the body. The detection circuit board includes the light source and a photoelectric sensor and is attached to the body such that they are aligned with the first and second holes respectively to sense intensity of the light passing through the sample pipe. The sample processing instrument includes the bubble detection device.

Abstract: Various of the disclosed embodiments provide Graphical User Interfaces (GUIs) for reviewing prior surgical procedures. Specifically, the GUI may allow a user, such as surgeon, to review sensor data, including video data, acquired during various of the surgeon's past surgical procedures. Some sensor data may be organized into metrics referred to herein as objective performance indicators (OPIs). Similarly, procedures may be discretized into specific tasks. By organizing and presenting data in OPI form at the task level, the GUI may facilitate efficient and coordinated review of the surgeon's progress over time across multiple procedures. In some embodiments, corresponding data from expert surgeons may also presented in the interface so that the user may gauge the surgeon's relative performance.

Abstract: The present disclosure discloses a treatment process and treatment system of enhanced up-flow multiphase wastewater oxidation. The treatment process includes the following steps: 1) the wastewater is fed into the up-flow multiphase wastewater oxidation system for oxidation treatment; 2) the wastewater is fed to the solid-liquid separation system for solid-liquid separation, the separated heterogeneous catalytic carrier (5) is fed back to the up-flow multiphase wastewater oxidation system, and the wastewater is fed to the neutralization and degassing system; 3) the wastewater is fed to the neutralization and degassing system to adjust a pH of the wastewater to 5.5-7.5, and then is degassed by stirring; 4) the wastewater is fed to the flocculation and sedimentation system for sludge-water separation, a supernatant is discharged, and an outward harmless treatment is performed after a pressure filtration of a sedimentary iron sludge.

Abstract: An electric frothing device includes a driving unit, a connecting rod, and a frothing unit. The driving unit has a housing, and a drive motor disposed in the housing. The drive motor has a power outputting shaft. The connecting rod is fixed to the power outputting shaft of the drive motor. The frothing unit has a fan fixed to the connecting rod and having blades, and a coil spring disposed with an interval from the blades of the fan.

Abstract: The invention discloses a starch-based multi-channel airflow unit and a preparation method and an application thereof. The preparation method of the present invention comprises the following steps: melting a polylactic acid, wherein a temperature of a first temperature control zone is 135° C. to 145° C., a temperature of a second temperature control zone is 175° C. to 185° C., a temperature of a third temperature control zone is 190° C. to 200° C., and a temperature of a fourth temperature control zone is 175° C. to 185° C.; gelatinizing a starch-based material, adding the starch-based material in the third temperature control zone and fully mixing the mixture; adding a polyol in the third temperature control zone, and fully mixing the mixture; and extruding out the mixed material through twin screws, sizing in vacuum, cooling and sizing, and winding and cutting to obtain the starch-based multi-channel airflow unit.