Abstract: Disclosed are a bus parking allocation method and apparatus considering operational preferences. The method includes: obtaining a bus station dataset, a parking lot dataset, a bus information dataset, and a bus departure/return dataset; obtaining a distance dataset containing distances between bus stations and parking lots; building a parking allocation model considering operational preferences; building an objective function of the parking allocation model, where one group of buses are allocated to one group of parking lots, with each bus being allocated to at most one parking lot, and the number of buses parked in each parking lot is less than or equal to a capacity of the parking lot; building bus preference lists and parking lot preference lists, and calculating the objective function while satisfying the preference lists, to minimize total parking costs of all buses, thereby obtaining parking allocation results considering operational preferences; and designing multiple visualization views for display.

Abstract: A method for processing images, including: acquiring an original image and auxiliary information of the original image; acquiring an object feature map by inputting the original image into a main path of a first visual task processing model, and acquiring an auxiliary feature map by inputting the auxiliary information into a branch path of the first visual task processing model; and acquiring a response map of the original image by fusing the object feature map and the auxiliary feature map and inputting fused object feature map and auxiliary feature map into the main path of the first visual task processing model.

Abstract: A method for recognizing actions in a video is provided. The method comprises, determining, based on key points of skeleton of at least one video frame in a video to be recognized, shallow features of the at least one video frame; acquiring image features of the at least one video frame; acquiring action features of the at least one video frame based on the shallow features and the image features; acquiring an action recognition result of the at least one video frame by inputting the action features of the at least one video frame into an action recognition model, wherein the action recognition result includes states and state probabilities of actions in the at least one video frame; and determining an execution state of a target action in the at least one video frame based on the action recognition result of the at least one video frame.

Abstract: An electric valve, includes a transmission mechanism, a valve core, and a valve body assembly. The valve body assembly is provided with a valve body cavity, the valve core is located in the valve body cavity, and the transmission mechanism is transmissionally connected to the valve core. The electric valve further comprises a connecting seat, which is fixedly connected to the valve body assembly, and the transmission mechanism comprises an output shaft; the electric valve further comprises a limiting frame, which is located on the radial outer circumference of the output shaft and is fixedly connected to the output shaft, the limiting frame being located on a side of the connecting seat relatively close to the valve core, and the limiting frame and the connecting seat being arranged opposite to each other and having a preset gap.

Abstract: A method for detecting and tracking a target is provided. The method includes: acquiring a target tracking result of each video frame of a plurality of video frames received from a video stream by inputting the each video frame of the plurality of video frames into a tracking network; in response to a video frame of the plurality of video frames being a key frame, acquiring a target detection result output by a detection network upon receiving a last delay frame in a specified number of delay frames by inputting the key frame into the detection network and controlling the detection network to operate during a period of receiving the specified number of delay frames; and generating a final target tracking result based on the target detection result and a target tracking result of the last delay frame.

Abstract: An electrospun nanofiber membrane and a method for preparing the electrospun nanofiber membrane are provided to solve problems of poor mechanical properties, short service life, poor uniformity and consistency of orientation of fibers and poor stability of fiber networks in current electrospun composite nanofiber materials. The electrospun nanofiber membrane is prepared by spinning solution through a high-voltage electrospinning device. The spinning solution is blending solution of regenerated silk fibroin:polyvinyl alcohol:polylactic acid with a mass ratio being 75-85:10-20:5 dissolved in a mixed solvent of trifluoroacetic acid and dichloromethane with a volume ratio being 7:3. The method establishes a reasonable mass ratio parameter of the regenerated silk fibroin, the polyvinyl alcohol and the polylactic acid to blending spinning to improve spinnability of silk fibroin, as well as prepare the electrospun composite nanofiber membrane with good mechanical properties.

Abstract: An electrospun nanofiber membrane and a method for preparing the electrospun nanofiber membrane are provided to solve problems of poor mechanical properties, short service life, poor uniformity and consistency of orientation of fibers and poor stability of fiber networks in current electrospun composite nanofiber materials. The electrospun nanofiber membrane is prepared by spinning solution through a high-voltage electrospinning device. The spinning solution is blending solution of regenerated silk fibroin: polyvinyl alcohol: polylactic acid with a mass ratio being 75-85:10-20:5 dissolved in a mixed solvent of trifluoroacetic acid and dichloromethane with a volume ratio being 7:3. The method establishes a reasonable mass ratio parameter of the regenerated silk fibroin, the polyvinyl alcohol and the polylactic acid to blending spinning to improve spinnability of silk fibroin, as well as prepare the electrospun composite nanofiber membrane with good mechanical properties.

Abstract: A method for recognizing actions in a video is provided. The method comprises, determining, based on key points of skeleton of at least one video frame in a video to be recognized, shallow features of the at least one video frame; acquiring image features of the at least one video frame; acquiring action features of the at least one video frame based on the shallow features and the image features; acquiring an action recognition result of the at least one video frame by inputting the action features of the at least one video frame into an action recognition model, wherein the action recognition result includes states and state probabilities of actions in the at least one video frame; and determining an execution state of a target action in the at least one video frame based on the action recognition result of the at least one video frame.

Abstract: A method for processing images, including: acquiring an original image and auxiliary information of the original image; acquiring an object feature map by inputting the original image into a main path of a first visual task processing model, and acquiring an auxiliary feature map by inputting the auxiliary information into a branch path of the first visual task processing model; and acquiring a response map of the original image by fusing the object feature map and the auxiliary feature map and inputting fused object feature map and auxiliary feature map into the main path of the first visual task processing model.

Abstract: The invention discloses a pharmaceutical formula used in photodynamic therapy (PDT) for cancer or precancerous lesions. The formula includes four components of disulfonic acid diphthaloyl iminomethyl dualistic substituted phthalocyanine zinc alkali salt. Furthermore, this invention also provides an industrial chromatography separation process. These components is obtained by separating ten cis isomers of ZnPcS2P2 from synthetic products and then separating among them 4 isomers with significant amphiphilic property. It is evident that 4 isomers of the invention shows improved drug affect compared to formulas containing those 10 cis-isomers.

Abstract: The invention discloses a pharmaceutical composition used in photodynamic therapy for cancer or precancerous lesions. The composition includes four isomers of zinc phthalocyanine. Furthermore, this invention also provides an industrial chromatography preparation process. The composition is synthesized by separating 10 cis-isomers from disulfonic acid diphthaloyl iminomethyl zinc phthalocyanine, and then separating among them 4 isomers with significant amphiphilic property. It is evident that the composition of the invention shows improved performance compared to compositions containing those 10 cis-isomers.