Abstract: Provided are catechol nanoparticles, catechol protein nanoparticles, and a preparation method and use thereof. The method includes: adding a tannin compound-containing natural herb medicine into water to obtain a mixture, and subjecting the mixture to heating reflux extraction to obtain a herb medicine extract and subjecting the herb medicine extract to fractionation to obtain the catechol nanoparticles.

Abstract: A smart acoustic information recognition-based welded weld impact quality determination method and system, comprising: controlling a tip of an ultrasonic impact gun (1) to perform impact treatment on a welded weld with different treatment pressures, treatment speeds, treatment angles and impact frequencies, obtaining acoustic signals during the impact treatment, calculating feature values of the acoustic signals, and constructing an acoustic signal sample set including various stress conditions; marking the acoustic signal sample set according to impact treatment quality assessment results for the welded weld; establishing a multi-weight neural network model, and using the marked acoustic signal sample set to train the multi-weight neural network model; obtaining feature values of welded weld impact treatment acoustic signals to be determined, inputting the feature values into the trained multi-weight neural network model, and outputting determination results for welded weld impact treatment quality to be det

Abstract: Implementations described herein relate to causing emoji(s) that are associated with a given emotion class expressed by a spoken utterance to be visually rendered for presentation to a user at a display of a client device of the user. Processor(s) of the client device may receive audio data that captures the spoken utterance, process the audio data to generate textual data that is predicted to correspond to the spoken utterance, and cause a transcription of the textual data to be visually rendered for presentation to the user via the display. Further, the processor(s) may determine, based on processing the textual data, whether the spoken utterance expresses a given emotion class. In response to determining that the spoken utterance expresses the given emotion class, the processor(s) may cause emoji(s) that are stored in association with the given emotion class to be visually rendered for presentation to the user via the display.

Abstract: Systems and methods for image data management are provided. The methods may include by running a first process, storing raw data collected in a scan of a subject into first storage space of the at least one storage device, and generating first information relating to the raw data. The methods may include by running a second process, obtaining the first information from the first process and storing the first information into second storage space of the at least one storage device. The methods may further include reconstructing the raw data into a reconstruction image of the subject based on the first information.

Abstract: Disclosed is an Aspergillus niger seed continuous culture method, comprising the steps of: (1) at a startup stage, Aspergillus niger spores are inoculated into a seed culture medium to obtain a seed liquid; (2) at a seed continuous culture stage, continuous dispersion treatment is performed on the seed liquid obtained in step (1), continuous culture is performed on the seed liquid obtained by dispersion, and meanwhile, a fresh seed feed medium is replenished; and (3) at a stop stage, the replenishment of the fresh seed feed medium and the dispersion treatment are stopped, continuous culture is performed to obtain a seed liquid, and then the seed liquid is transferred into the fermentation medium for fermentation culture. The method according to the present invention makes breakthrough to solve problems that multi-cellular filamentous bacteria grow slowly and mycelium pellets are easy to lose in continuous culture, thus fully achieving seed continuous culture.

Abstract: The present invention relates to aromatic ring or heteroaromatic ring compounds, a preparation method therefor and a medical use thereof. Particularly, the present invention relates to a compound as shown in general formula (I) and a preparation method therefor, a pharmaceutical composition comprising the compound and a use thereof as an agonist for a farnesoid X receptor (FXR). The compound and the pharmaceutical composition comprising the compound can be used for treating and/or preventing FXR activity-related diseases, for example, cholestatic symptoms, diabetes and complications thereof, nonalcoholic fatty liver disease (NAFLD), nonalcoholic steatosis heptitis (NASH), obesity or metabolic syndrome (diseases associated with dyslipidemia, diabetes, abnormally high body weight index), cardiovascular diseases and so on. The definition of each substituent in the general formula (I) is the same as that in the description.

Abstract: Chiral polymer microspheres have a porous structure of a concentric multi-shell structure. Each layer of the multi-shell structure is optically and structurally anisotropic. The optical axes of adjacent layers have a sequential slight twist. All layers of the multi-shell structure generate a helix configuration and the chiral polymer microspheres are optically active. A method for preparing the chiral polymer microspheres, includes: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form liquid crystal droplets through an emulsification process; polymerizing the reactive liquid crystal to form intermediate microspheres; and removing the one non-reactive liquid crystal and the chiral additive to form the chiral polymer microspheres. The chiral polymer microspheres have a porous structure and a swelling ability, and can be used as the stationary phase in chiral chromatograph, improving separation efficiency.

Abstract: Chiral polymer microspheres have a porous structure of a concentric multi-shell structure. Each layer of the multi-shell structure is optically and structurally anisotropic. The optical axes of adjacent layers have a sequential slight twist. All layers of the multi-shell structure generate a helix configuration and the chiral polymer microspheres are optically active. A method for preparing the chiral polymer microspheres, includes: forming a homogeneous liquid crystal mixture; dispersing the liquid crystal mixture into a continuous phase to form liquid crystal droplets through an emulsification process; polymerizing the reactive liquid crystal to form intermediate microspheres; and removing the one non-reactive liquid crystal and the chiral additive to form the chiral polymer microspheres. The chiral polymer microspheres have a porous structure and a swelling ability, and can be used as the stationary phase in chiral chromatograph, improving separation efficiency.

Abstract: Disclosed is an Aspergillus niger seed continuous culture method, comprising the steps of: (1) at a startup stage, Aspergillus niger spores are inoculated into a seed culture medium to obtain a seed liquid; (2) at a seed continuous culture stage, continuous dispersion treatment is performed on the seed liquid obtained in step (1), continuous culture is performed on the seed liquid obtained by dispersion, and meanwhile, a fresh seed feed medium is replenished; and (3) at a stop stage, the replenishment of the fresh seed feed medium and the dispersion treatment are stopped, continuous culture is performed to obtain a seed liquid, and then the seed liquid is transferred into the fermentation medium for fermentation culture. The method according to the present invention makes breakthrough to solve problems that multi-cellular filamentous bacteria grow slowly and mycelium pellets are easy to lose in continuous culture, thus fully achieving seed continuous culture.

Abstract: The present disclosure relates to an expression vector for restoring male sterility in a plant. The expression vector comprises a regulatory region sequence operably linked to a heterologous nucleotide sequence.

Abstract: The present disclosure relates to a fertility gene and the use thereof, and relates to the biotechnology field, particularly to a method of plant hybrid breeding including creation of a sterile line and preparation of hybrid seeds, more particularly to a fertility gene FL2, a mutant thereof and use thereof in hybrid breeding.

Abstract: The present disclosure relates to a fertility gene and the use thereof, and relates to the biotechnology field, particularly to a method of plant hybrid breeding including creation of a sterile line and preparation of hybrid seeds, more particularly to a fertility gene FL2, a mutant thereof and use thereof in hybrid breeding.

Abstract: The profile of the valve stop of a discharge valve conforms to the maximum bending stress or the maximum allowable fatigue stress whereby impact of the valve element with the valve stop occurs when the valve element has the least kinetic energy and highest potential energy such that the least possible kinetic energy is transferred to the valve stop.