Abstract: Disclosed is a method for measuring surface energy of aggregates based on static drop method, comprising (1) aggregates grinding and pretreatment; (2) obtaining the surface texture index; (3) calculating the surface energy based on static drop method experiment; (4) fitting to obtain a functional relationship between the surface texture index and surface energy; (5) calculating the surface energy of the original aggregate. The method considers the influence of the grinding process on the surface texture of the aggregates when measuring the surface energy of the aggregates, which significantly improves the accuracy of the static drop method test. The static drop method can be used to replace the vapor adsorption method to test the surface energy of aggregate, and the low-cost optical contact angle instrument can replace the expensive magnetic suspension weight balance system to test the surface energy of aggregate, which greatly reduces the test cost.

Abstract: A wireless sensor network (WSN) clustering routing method based on optimization with salp swarm algorithm includes: S1: constructing an objective function by comprehensively considering factors as follows: node residual energy, a distance between cluster head nodes, a distance between a cluster member node and a cluster head node, a distance from a node to a base station, and a number of cluster head nodes; S2: solving the objective function by using a salp swarm algorithm, to find an optimal clustering scheme, and thus dividing the WSN into non-uniform clusters, wherein in each cluster, the cluster member node sends data to the cluster head node in a single-hop manner; S3: constructing a minimum spanning tree with the base station as a root node by using a routing utility function ƒ(CHi); S4: sending, by the cluster head node, data to the base station through routing organized by the minimum spanning tree.

Abstract: A path planning method, system, and device for autonomous driving are provided, where the method includes: acquiring environment perception information and vehicle positioning and navigation information, where the environment perception information includes obstacle information, roadside information, and lane line information, and the vehicle positioning and navigation information includes a vehicle pose and a target route; generating sub-paths according to the environment perception information and the vehicle positioning and navigation information, to obtain candidate sub-paths meeting vehicle constraints; performing a collision detection on the candidate sub-paths meeting the vehicle constraints, to obtain collision-free candidate sub-paths; performing a sub-path search on the collision-free candidate sub-paths by using an A* search algorithm; and obtaining, according to a result of the sub-path search, a local path of a vehicle.

Abstract: Provided are a method, apparatus and system for detecting obstacle collision in an automatic parking path. The method includes: geometrically performing an obstacle collision detection in a circular arc path and/or an obstacle collision detection in a straight line path by using a path contour, a vehicle contour and an obstacle contour. The system includes a collision detection module for geometrically performing detection of obstacle collision in a circular arc path and/or detection of obstacle collision in a straight line path by using a path contour, a vehicle contour and an obstacle contour. The apparatus includes: a memory and a processor configured for geometrically performing detection of obstacle collision in a circular arc path and/or detection of obstacle collision in a straight line path by using a path contour, a vehicle contour and an obstacle contour.

Abstract: A wireless sensor network (WSN) clustering routing method based on optimization with salp swarm algorithm includes: S1: constructing an objective function by comprehensively considering factors as follows: node residual energy, a distance between cluster head nodes, a distance between a cluster member node and a cluster head node, a distance from a node to a base station, and a number of cluster head nodes; S2: solving the objective function by using a salp swarm algorithm, to find an optimal clustering scheme, and thus dividing the WSN into non-uniform clusters, wherein in each cluster, the cluster member node sends data to the cluster head node in a single-hop manner; S3: constructing a minimum spanning tree with the base station as a root node by using a routing utility function ƒ(CHi); S4: sending, by the cluster head node, data to the base station through routing organized by the minimum spanning tree.

Abstract: Provided is a strain of bactericidal nitrogen-fixing Pseudomonas protegens CHA0-?retS-NiF, a fermentation method and an application thereof. The strain is deposited under the accession number CGMCC No. 14476. The optimum culture condition thereof is at pH 7, the temperature of 28° C., and rotation speed of 600 rpm. Further provided is a microbial agent containing the Pseudomonas protegens CHA0-?retS-NiF as an active ingredient. The Pseudomonas protegens CHA0-?retS-NiF has strong nitrogen-fixing and bactericidal capabilities and may be used to prevent and cure plant diseases and to boost plant growth.

Abstract: A resource sharing method is performed at a mobile terminal, the method including the following steps: obtaining configured user identifier; obtaining multimedia data; obtaining a resource sharing request, and associating the user identifier with the multimedia data according to the resource sharing request; generating a resource sharing instruction according to an association relationship between the user identifier and the multimedia data; and executing the resource sharing instruction.

Abstract: A resource sharing method is performed at a mobile terminal, the method including: configuring a to-be-shared resource by using a processor, to obtain data needed for obtaining a resource; obtaining a user identifier of a currently logged-in social networking application; obtaining a resource sharing message image template, a user-defined visible element, and configuration information of the visible element that are associated with the user identifier; drawing a resource sharing message image according to the resource sharing message image template, the visible element, and the configuration information, and displaying the resource sharing message image on a social network propagation page of the social networking application; and transferring, by using a social network, a resource sharing message corresponding to the resource sharing message image, the resource sharing message including the data needed for obtaining a resource.

Abstract: A resource sharing method is performed at a mobile terminal, the method including: receiving a resource sharing message configuration file that is delivered in a pre-configured delivery time period; obtaining a theme activity time period according to the resource sharing message configuration file; displaying a resource sharing message configuration portal in the theme activity time period; detecting an operation on the resource sharing message configuration portal, and entering a resource sharing message configuration page; obtaining, according to a configuration performed on the resource sharing message configuration page, a resource sharing message template matching the theme activity time period and resource information matching the resource sharing message template; generating a resource sharing message according to the obtained resource sharing message template and resource information, the resource sharing message including data for obtaining a resource; and sharing the resource sharing message.

Abstract: A path planning method, system, and device for autonomous driving are provided, where the method includes: acquiring environment perception information and vehicle positioning and navigation information, where the environment perception information includes obstacle information, roadside information, and lane line information, and the vehicle positioning and navigation information includes a vehicle pose and a target route; generating sub-paths according to the environment perception information and the vehicle positioning and navigation information, to obtain candidate sub-paths meeting vehicle constraints; performing a collision detection on the candidate sub-paths meeting the vehicle constraints, to obtain collision-free candidate sub-paths; performing a sub-path search on the collision-free candidate sub-paths by using an A* search algorithm; and obtaining, according to a result of the sub-path search, a local path of a vehicle.

Abstract: Provided are a method, apparatus and system for detecting obstacle collision in an automatic parking path. The method includes: geometrically performing an obstacle collision detection in a circular arc path and/or an obstacle collision detection in a straight line path by using a path contour, a vehicle contour and an obstacle contour. The system includes a collision detection module for geometrically performing detection of obstacle collision in a circular arc path and/or detection of obstacle collision in a straight line path by using a path contour, a vehicle contour and an obstacle contour. The apparatus includes: a memory and a processor configured for geometrically performing detection of obstacle collision in a circular arc path and/or detection of obstacle collision in a straight line path by using a path contour, a vehicle contour and an obstacle contour.

Abstract: Provided are Pseudomonas protegens mutant strain Pf5-NiF, Pf5-?retS, or Pf5-?retS-NiF, and a screening method therefor and an application thereof. By means of Red/ET recombination and direct cloning technologies, the NiF nitrogen fixation gene island in the genome of Pseudomonas stutzeri DSM4166, taken as a whole, is cloned into the genome of Pseudomonas protegens Pf5, so as to heterologously express the same successfully to obtain a genetically engineered strain Pf5-NiF, thereby bringing a biological nitrogen fixation function to Pseudomonas protegens Pf5 which does not own a biological nitrogen fixation function. In addition, gene-directed markerless knockout of retS gene in the genome of Pseudomonas protegens Pf5 is performed to obtain a genetically engineered strain Pf5-?retS. Thus, the expression levels of an antibiotic 2,4-diacetylphloroglucinol and red pigment are increased, and a mutant strain of Pseudomonas protegens Pf5 having a stronger bactericidal activity is obtained.

Abstract: A water heater includes a tank and a heating pipe. The tank has a water storage space therein. A bottom of the tank is provided with a cold water inlet and a circulation outlet. The tank is provided with a hot water outlet located at a position not less than one half height of the tank. The heating pipe is connected with a circulation pipe outside the tank to communicate with the circulation outlet. The heating pipe extends upward from the bottom of the tank into the water storage space. The heating pipe is provided with an opening facing sideways. The opening is located at a certain height of the water storage space. An outside of the heating pipe is provided with a heating device for heating the heating pipe.

Abstract: A method for dynamically presenting webpage information and the related systems are disclosed. The method includes: receiving an instruction to invoke a dynamic webpage including first account information; sending an information acquisition instruction to each designated online social platform according to second account information, which corresponds to the first account information, of each designated online social platform; receiving data returned by each designated online social platform and performing format conversion on the data, so as to convert the data into data in a designated data format; and integrating the data in a converted format and of each designated online social platform into a complete data list and displaying the integrated data list. According to the solutions of the present disclosure, when webpage information of multiple online social platforms needs to be viewed, it is unnecessary to separately log in to multiple account numbers for viewing.

Abstract: A resource sharing method is performed at a mobile terminal, the method including the following steps: obtaining configured user identifier; obtaining multimedia data; obtaining a resource sharing request, and associating the user identifier with the multimedia data according to the resource sharing request; generating a resource sharing instruction according to an association relationship between the user identifier and the multimedia data; and executing the resource sharing instruction.

Abstract: A resource sharing method is performed at a mobile terminal, the method including: receiving a resource sharing message configuration file that is delivered in a pre-configured delivery time period; obtaining a theme activity time period according to the resource sharing message configuration file; displaying a resource sharing message configuration portal in the theme activity time period; detecting an operation on the resource sharing message configuration portal, and entering a resource sharing message configuration page; obtaining, according to a configuration performed on the resource sharing message configuration page, a resource sharing message template matching the theme activity time period and resource information matching the resource sharing message template; generating a resource sharing message according to the obtained resource sharing message template and resource information, the resource sharing message including data for obtaining a resource; and sharing the resource sharing message.

Abstract: A resource sharing method is performed at a mobile terminal, the method including: configuring a to-be-shared resource by using a processor, to obtain data needed for obtaining a resource; obtaining a user identifier of a currently logged-in social networking application; obtaining a resource sharing message image template, a user-defined visible element, and configuration information of the visible element that are associated with the user identifier; drawing a resource sharing message image according to the resource sharing message image template, the visible element, and the configuration information, and displaying the resource sharing message image on a social network propagation page of the social networking application; and transferring, by using a social network, a resource sharing message corresponding to the resource sharing message image, the resource sharing message including the data needed for obtaining a resource.

Abstract: The disclosure discloses a method and device for call playback in a ringing state. The method includes that: after forwarding a call request initiated by a user terminal, and when receiving a first temporary response message returned by a called party, an Access Transfer Control Functionality (ATCF) applies for a media resource for a first playback media and performs playback on the first playback media, wherein the first temporary response message carries description information about the first playback media; when receiving an nth temporary response message of the call request, the ATCF reapplies for a pair of media resources to anchor an nth playback media, wherein the nth temporary response message carries description information about the nth playback media, and n is a natural number which is greater than or equal to 2; and the ATCF performs playback on the nth playback media through the pair of media resource.

Abstract: Provided are a method and a device for anchoring media in a voice call continuity service. The method includes: dividing media carried in a multimedia type session into a first type of media and a second type of media, wherein the first type of media is media which is supported by an ATGW, and the second type of media is media which is not supported by the ATGW; and anchoring the first type of media to the ATGW and transparently transmitting the second type of media. By means of the technical solution, the technical problems in the related art that it is unable to directly anchor call media due to the fact that an ATCF is probably unable to support all types of media, etc. are solved, so that channels for anchored media can be quickly connected, the voice continuity can be guaranteed, and the user experience can be improved.

Abstract: A method, device and computer-readable storage medium for setting up runtime environment for an application are provided in the present disclosure. The method includes the following steps: determining whether the application is installed; when the application is determined being installed, creating a process of the application according to user's instruction; and providing an application platform interface for developing the application.