Abstract: In one aspect, the present disclosure provides compounds such as those with one or more quaternary ammonium ions joined by one or more aromatic rings. These compounds may have a formula: These compounds may be used in the treatment of a microbial infection such as a bacterial infection including infections of drug resistant strains of bacteria.

Abstract: A server system receives a group operation request transmitted by a client. The group operation request is generated by the client in response to a trigger operation of a target group chat function, and includes a target identity and a target group chat function identifier. The server system determines a target group chat function use permission corresponding to the target identity. In accordance with a determination, based on the target group chat function use permission and the target group chat function identifier, that a user corresponding to the target identity has a permission to use the target group chat function, the server system transmits group operation result information to the client.

Abstract: The described aspects and implementations enable efficient detection and classification of objects with machine learning models that deploy a bird's-eye view representation and are trained using depth ground truth data. In one implementation, disclosed are system and techniques that include obtaining images, generating, using a first neural network (NN), feature vectors (FVs) and depth distributions pixels of images, wherein the first NN is trained using training images and a depth ground truth data for the training images. The techniques further include obtaining a feature tensor (FT) in view of the FVs and the depth distributions, and processing the obtained FTs, using a second NN, to identify one or more objects depicted in the images.

Abstract: The present invention provides a long-acting glucagon derivative whose amino acid sequence includes a sequence as shown in SEQ ID NO. 9. The long-acting glucagon derivative of the present invention shows in animal experiments that, compared with a similar fatty acid-modified GLP-1R single agonist Semaglutide (see J Med Chem. 2015, 58 (18): 7370-80), its glucose tolerance and activity of reducing weight in mice are both stronger and can maintain for a longer time.

Abstract: Example embodiments relate to techniques for three dimensional (3D) object detection and localization. A computing system may cause a radar unit to transmit radar signals and receive radar reflections relative to an environment of a vehicle. Based on the radar reflections, the computing system may determine a heading and a range for a nearby object. The computing system may also receive an image depicting a portion of the environment that includes the object from a vehicle camera and remove peripheral areas of the image to generate an image patch that focuses upon the object based on the heading and the range for the object. The image patch and the heading and the range for the object can be provided as inputs into a neural network that provides output parameters corresponding to the object, which can be used to control the vehicle.

Abstract: Example embodiments relate to techniques for three dimensional (3D) object detection and localization. A computing system may cause a radar unit to transmit radar signals and receive radar reflections relative to an environment of a vehicle. Based on the radar reflections, the computing system may determine a heading and a range for a nearby object. The computing system may also receive an image depicting a portion of the environment that includes the object from a vehicle camera and remove peripheral areas of the image to generate an image patch that focuses upon the object based on the heading and the range for the object. The image patch and the heading and the range for the object can be provided as inputs into a neural network that provides output parameters corresponding to the object, which can be used to control the vehicle.

Abstract: An apparatus and method for data processing includes determining a search keyword according to a search statement input by a user; determining a first graph entity library corresponding to a category to which the search keyword belongs; determining, according to an association relationship between graph entity libraries of a plurality of categories, a category of a graph entity library associated with the first graph entity library, and constructing a first set, the first set including at least one graph entity library which has an association relationship with the first graph entity library, and the association relationship between the graph entity libraries is established according to a search demand of a user; and displaying, after the first set is constructed, each graph entity library included in the first set by using the search keyword as a center.

Abstract: Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

Abstract: Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

Abstract: Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

Abstract: Example embodiments relate to techniques for three dimensional (3D) object detection and localization. A computing system may cause a radar unit to transmit radar signals and receive radar reflections relative to an environment of a vehicle. Based on the radar reflections, the computing system may determine a heading and a range for a nearby object. The computing system may also receive an image depicting a portion of the environment that includes the object from a vehicle camera and remove peripheral areas of the image to generate an image patch that focuses upon the object based on the heading and the range for the object. The image patch and the heading and the range for the object can be provided as inputs into a neural network that provides output parameters corresponding to the object, which can be used to control the vehicle.

Abstract: An attitude adjustment apparatus for a self-propelled bio-inspired robotic fish includes a fish body, where the fish body includes: a housing; a center-of-gravity adjustment assembly, located in the housing to adjust a center of gravity of the fish body, and including at least one counterweight and a screw-slider mechanism that drives the counterweight to move in a head-to-tail direction; and a suction and drainage system, located in the housing to adjust a weight of the fish body, and including a ballast tank and a water control assembly for controlling a water level in the ballast tank. The center-of-gravity adjustment assembly is combined with the suction and drainage system to rapidly change the weight and center of gravity of the fish body, so as to quickly adjust the pitching attitude and heaving state of the robotic fish.

Abstract: A micro-fluxgate sensor has a double-iron core assembly, a self-oscillating module, a current superimposing and amplifying module and a voltage acquisition module. The double-iron core assembly comprises a first iron core and a second iron core. The first iron core is provided with a first winding coil. The second iron core is provided with a second winding coil. The first winding coil and the second winding coil are respectively connected with an input end of the self-oscillating module, and an output end of the self-oscillating module is respectively connected with the current superimposing and amplifying module and the voltage acquisition module. The fluxgate sensor is simple in processing circuit without manual debugging and is easily integrated.

Abstract: A bifunctional nucleoside hydrogel is formed by dissolving isoguanosine, guanosine and a borate in water or an aqueous solution and then crosslinking same. The bifunctional nucleoside hydrogel integrates a carrier and a drug effect and has a significant inhibitory effect on the activity of tumor cells, and in particular has a significant inhibitory effect on the activity of cells related to lung cancer, glioma, osteoma, colon cancer, breast cancer, oral squamous cell carcinoma and tongue squamous cell carcinoma, of which the inhibitory effect on the activity of cells related to oral squamous cell carcinoma is the best. Therefore, the bifunctional nucleoside hydrogel has potential application prospects in preparing anti-tumor drugs, and particularly, same can provide a new approach for treating oral squamous cell carcinoma.

Abstract: The present application discloses a diffuser system and a centrifugal compressor comprising the same. The diffuser system comprises: a passage through which a compressed gas is flowable; and a wall defining the passage, the wall comprising a movable part which is driven to enter the passage so as to change a flow area of the passage, wherein the movable part comprises an elastomer configured to expand to guide the flow of the compressed gas when at least a portion of the movable part enters the passage, and to retract when the movable part withdraws from the passage. The diffuser system involved in the present application re-orients a flow route of the compressed gas in the passage.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for predicting three-dimensional object locations from images. One of the methods includes obtaining a sequence of images that comprises, at each of a plurality of time steps, a respective image that was captured by a camera at the time step; generating, for each image in the sequence, respective pseudo-lidar features of a respective pseudo-lidar representation of a region in the image that has been determined to depict a first object; generating, for a particular image at a particular time step in the sequence, image patch features of the region in the particular image that has been determined to depict the first object; and generating, from the respective pseudo-lidar features and the image patch features, a prediction that characterizes a location of the first object in a three-dimensional coordinate system at the particular time step in the sequence.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for agent trajectory prediction using temporal-spatial interaction predictions.

Abstract: An injectable bifunctional hydrogel has antibacterial activity. The bifunctional hydrogel is a hydrogel prepared by dissolving nucleoside analogues in a solvent. The nucleoside analog has a structure of formula I. It can be a candidate drug for the local injection treatment of periodontal disease, and it also has potential application prospects in the minimally invasive treatment of craniofacial bone tissue defects.

Abstract: Methods, computer systems, and apparatus, including computer programs encoded on computer storage media, for generating a distance estimate for a target object that is depicted in an image of a scene in an environment. The system obtains data specifying (i) a target portion of the image that depicts the target object detected in the image, and (ii) one or more reference portions of the image that each depict a respective reference object detected in the image. The system further obtains, for each of the one or more reference objects, a respective distance measurement for the reference object that is a measurement of a distance from the reference object to a specified location in the environment. The system processes the obtained data to generate a distance estimate for the target object that is an estimate of a distance from the target object to the specified location in the environment.

Abstract: A query is received from a user. A query event type and a query time range associated with the query are determined. An estimated amount of data to be queried associated with the determined query time range is determined based on at least a historical number of the query event type of the user. An allowable amount of data to be queried supported by a database for a single query is determined. One or more sub-queries for the received query are generated. Each sub-query is associated with a different time period within the determined query time range. A corresponding amount of data to be queried associated with each time period is less than, or equal to, the determined allowable amount of data to be queried. The database is queried with the generated one or more sub-queries.