Abstract: Provided are an interaction method and apparatus in a live streaming room, a device, and a storage medium. The method comprises: in response to a trigger operation for a preset drawing entry on a live streaming room page, jumping to a graphic drawing page from the live streaming room page, a drawing trajectory set for a preset object being displayed on the graphical drawing page; when a drawing stroke on the graphic drawing page is received, matching the drawing stroke with the drawing trajectory; and if it is determined that the drawing stroke is successfully matched with the drawing trajectory, displaying prompt information about successful participation in a preset activity, the preset activity and the preset drawing entry having a correspondence.

Abstract: This specification provides a training method of a hybrid graph neural network model. The hybrid graph neural network model includes an encoding function and a decoding function. The method includes the following: using instances corresponding to all targets in training samples and several nearest neighbors of the instances as nodes in a graph, a graph representation vector of each instance is generated by using the encoding function based on graph data of all the instances. t rounds of training are performed on a decoding parameter; and in each round, bs targets are extracted from training samples, a predicted quantity of each target is generated by using the decoding function based on the graph representation vector of the instance corresponding to each target and non-graph data corresponding to each target, and the decoding parameter is optimized based on a loss quantity of the current round that is determined by the predicted quantities and label quantities of the bs targets in the current round.

Abstract: A fingerprint spectrum construction method for a new compound aloe capsule and a fingerprint spectrum includes: (1) taking powder of a new compound aloe capsule, carrying out reflux extraction, adding methanol, carrying out ultrasonic treatment, filtering, and taking a subsequent filtrate as a test solution; dissolving barbaloin, aloe-emodin, indirubin, tryptanthrin, aloesin, and ?-sitosterol in methanol to obtain reference solutions; (2) injecting the test solution and the reference solutions into a high performance liquid chromatograph for gradient elution to obtain a chromatogram of the new compound aloe capsule and chromatograms of the reference solutions, respectively; and (3) labeling chemical components of peaks on the chromatogram of the new compound aloe capsule according to the chromatogram of the new compound aloe capsule and the chromatograms of the reference solutions to obtain a fingerprint spectrum of the new compound aloe capsule.

Abstract: The present invention provides a Ganoderma lucidum ?-glucan extract, a preparation method and detection method therefor. The preparation method includes: S1: crushing fruiting bodies of Ganoderma lucidum, mixing the crushed fruiting bodies with a solvent, adding trypsin for enzymatic hydrolysis for 0.5-2 h, and separating to obtain a Ganoderma lucidum fruiting body filter residue; S2: mixing the Ganoderma lucidum fruiting body filter residue with an alkali solution, carrying out ultrasonic extraction with heating, adjusting the pH value of the obtained filtrate to be neutral, and concentrating to obtain a crude Ganoderma lucidum polysaccharide; S3: carrying out alcohol precipitation on the crude Ganoderma lucidum polysaccharide, separating the obtained precipitate, and freeze-drying to obtain a crude Ganoderma lucidum ?-glucan extract; and S4: purifying the crude Ganoderma lucidum ?-glucan extract by glucose gel column chromatography to obtain a Ganoderma lucidum ?-glucan extract.

Abstract: A device comprises a substrate and an IC die, which may be a photonic IC. The substrate comprises a first surface, a second surface opposite the first surface, an optical waveguide integral with the substrate, and a hole extending from the first surface to the second surface. The hole comprises a first sidewall. The optical waveguide is between the first surface and the second surface, parallel to the first surface, and comprises a first end which extends to the first sidewall. The IC die is within the hole and comprises a second sidewall and an optical port at the second sidewall. The second sidewall is proximate to the first sidewall and the first end of the optical waveguide is proximate to and aligned with the optical port. The substrate may include a recess to receive another device comprising a socket.

Abstract: A method for separating and extracting subpopulations of gastric cancer tissue-derived extracellular vesicles includes the following steps: to first immerse gastric cancer tumor tissues into a digestive solution for enzymatic digestion to obtain a tissue digestion supernatant, simultaneously, to formulate different digestive solutions to optimize the enzymatic digestion process, followed by performing multiple differential centrifugations on the tissue digestion supernatant to obtain centrifuged supernatants respectively, thereby obtaining the tissue-derived extracellular vesicles and their subpopulations.

Abstract: A method for efficiently injecting sources and retrieving receiver wavefields using finite difference models for wavefield simulations on a GPU, when the source and receiver are not on numerical grid points, and therefore arbitrarily located. To accomplish that, the method employs GPU texture memory to increase the memory read bandwidth, and then positions at arbitrary or simulated locations the sources in a finite difference grid, as well as extends them over a newly generated number of grid points.

Abstract: A method for efficiently injecting sources and retrieving receiver wavefields using finite difference models for wavefield simulations on a GPU, when the source and receiver are not on numerical grid points, and therefore arbitrarily located. To accomplish that, the method employs GPU texture memory to increase the memory read bandwidth, and then positions at arbitrary or simulated locations the sources in a finite difference grid, as well as extends them over a newly generated number of grid points.