Abstract: A system and method for rock mass structure detection and dangerous rock detection including a rock mass structure automated detection device and a server. The rock mass structure automated detection device includes a three-dimensional laser scanning device and a two-dimensional image acquisition device for respectively acquiring three-dimensional laser point cloud data and a two-dimensional image of a tunnel construction region. The server communicates with the rock mass structure automated detection device and includes a block structure three-dimensional modeling module and a block structure geometric stability analysis module.

Abstract: Disclosed is a prefabricated laminated slab made in accordance with a pretensioning fibermesh anti-cracking process and a manufacturing method thereof, and belongs to the technical field of fabricated structure engineering. The prefabricated laminated slab comprises a concrete layer, fiber grids, distribution bars and truss bars. The fiber grids are subjected to prestress tensioning and pouring to form a novel laminated slab with the pretensioning process, an overall pouring process of layered formworks is adopted, the construction problem during prestress tensioning of the fiber grids of the component can be effectively solved, the crack resistance of the laminated slab can be improved by adopting the prestress grids, the rigidity is increased, and the crack width under normal use conditions is reduced.

Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.

Abstract: Methods, systems, and computer programs are presented for predicting a response probability to a sent notification. One method includes an operation for training respective neural networks to obtain a first, second, and third models. The first model generates an embedding based on member information. The second and third model generate parameters for a distribution function. The first model is used to calculate a member embedding when accessing a notification for a member. Further, the method second model calculates a first parameter value, and the third model calculates a second parameter value based on the member embedding. Further, the method determines, a first probability that the member will visit the online service in response to the notification and a second probability that the member will visit without sending the notification. The method further includes determining to send the notification based on the first probability and the second probability.

Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.

Abstract: Disclosed in the present invention are a method for eliminating a one-bit signal harmonic false target and a related component. In the method, dechirping, a frequency shift, one-bit quantization, AD sampling, and a Fourier transform are performed on an echo signal to obtain a frequency spectrum, and then constant false alarm rate detection is performed on the frequency spectrum, to obtain a distance of a real target and a distance of a false target. For the distance of the false target, a difference comparison is performed on multiple snapshot-based angle of arrival information and single snapshot-based angle of arrival information, a distance corresponding to an angle with the smallest angle difference is obtained from the single snapshot-based angle of arrival information, and the distance is used as the distance of the real target, thereby eliminating the false target and then reducing costs of data acquisition, transmission, storage, and processing.

Abstract: A system and method for rock mass structure detection and dangerous rock detection including a rock mass structure automated detection device and a server. The rock mass structure automated detection device includes a three-dimensional laser scanning device and a two-dimensional image acquisition device for respectively acquiring three-dimensional laser point cloud data and a two-dimensional image of a tunnel construction region. The server communicates with the rock mass structure automated detection device and includes a block structure three-dimensional modeling module and a block structure geometric stability analysis module.

Abstract: This application discloses an information search method and apparatus. The method includes the steps of receiving a voice message from a first terminal, the voice message including a first request, and the first request requesting a search operation; parsing out a search keyword of the first request from the voice message; and performing the search operation by using the search keyword to obtain a search result. The method further includes sending the search result to a second terminal, the first terminal being associated with the second terminal, and the second terminal being configured to present the search result.

Abstract: The present application discloses a portable thermoelectric potential detector, which is small in size and easy to carry. A portable thermoelectric potential detector includes a test fixture for fixing a sample to be tested, a probe assembly unit for detecting the sample to be tested, and a collection and control unit for controlling detecting of the probe assembly and collecting a voltage signal of the probe assembly; the probe assembly unit includes two probe assemblies, each probe assembly includes a probe for loading on the surface of the sample to be tested and a linear motor for driving the probe to move and load on the surface of the sample to be tested; the collection and control unit is electrically connected to the linear motor, and is further configured to transmit a first control signal for controlling a moving distance and a loading force of the linear motor.

Abstract: The present application discloses a portable thermoelectric potential detector, which is small in size and easy to carry. A portable thermoelectric potential detector includes a test fixture for fixing a sample to be tested, a probe assembly unit for detecting the sample to be tested, and a collection and control unit for controlling detecting of the probe assembly and collecting a voltage signal of the probe assembly; the probe assembly unit includes two probe assemblies, each probe assembly includes a probe for loading on the surface of the sample to be tested and a linear motor for driving the probe to move and load on the surface of the sample to be tested; the collection and control unit is electrically connected to the linear motor, and is further configured to transmit a first control signal for controlling a moving distance and a loading force of the linear motor.

Abstract: This application discloses an information search method and apparatus. The method includes the steps of receiving a voice message from a first terminal, the voice message including a first request, and the first request requesting a search operation; parsing out a search keyword of the first request from the voice message; and performing the search operation by using the search keyword to obtain a search result. The method further includes sending the search result to a second terminal, the first terminal being associated with the second terminal, and the second terminal being configured to present the search result.

Abstract: The present disclosure provides methods, a system, and a server for constructing a microblog management circle. One method includes: setting, by a server, a microblog account 1 as a main official account; and receiving, by the server, a message indicating that a microblog account 2 is used as a sub official account subordinate to the main official account, setting, according to the message, the microblog account 2 as the sub official account subordinate to the main official account, and displaying operational data of the sub official account subordinate to the main official account to the main official account. In the present disclosure, an architecture of a hierarchical microblog management circle can be constructed, making it easier for a manager of a microblog account to view operational data of the subordinate microblog account.

Abstract: The present disclosure provides methods, a system, and a server for constructing a microblog management circle. One method includes: setting, by a server, a microblog account 1 as a main official account; and receiving, by the server, a message indicating that a microblog account 2 is used as a sub official account subordinate to the main official account, setting, according to the message, the microblog account 2 as the sub official account subordinate to the main official account, and displaying operational data of the sub official account subordinate to the main official account to the main official account. In the present disclosure, an architecture of a hierarchical microblog management circle can be constructed, making it easier for a manager of a microblog account to view operational data of the subordinate microblog account.

Abstract: The present invention, pertaining to the field of communications technologies, discloses a method, device, server, and mobile terminal for browsing web pages. The method includes: acquiring a web page requested by a user terminal; dividing the web page into at least two subpages when the number of bytes on the web page requested by the user terminal is larger than the number of bytes per subpage as predetermined by the user terminal; and sending a first subpage of the at least two subpages to the user terminal, and sending the link(s) of the subpage(s) other than the first subpage to the user terminal, so that the user terminal browses the web page according to the first subpage and the link(s). The device includes: a first acquiring module, a page dividing module, and a sending module. The mobile terminal includes: a sending module, a receiving module, and a browsing module. The present invention improves the browsing speed and operation speed, but also saves network traffic of the mobile terminal.