Abstract: Disclosed is a system for optimizing a particle size distribution of a lost circulation material. The system comprises a data acquisition module, a communication module, an experimental module, a particle size distribution optimization module, and a plugging and filling module. The data acquisition module is configured to obtain a target feature particle size. The experimental module is configured to obtain the target feature particle size, and set a plurality of experimental schemes for fracture plugging; conduct fracture plugging experiments to obtain experimental results; evaluate a plurality of fracture plugging effects of each of the plurality of experimental schemes. The particle size distribution optimization module is configured to obtain the plurality of fracture plugging effects, determine a particle size distribution rule, and obtain optimized particle size distribution data by optimizing the particle size distribution of the lost circulation material.

Abstract: Here we present a novel renewable industrial method to manufacture metal oxide compounds, such as ZnO. The process relies on active functional biological material including functional microorganisms and the relevant battery technology. Unlike traditional combustion manufacture process, which is heavily rely on intensive energy consumption and generates tremendous CO2 during manufacture, this novel manufacture method generates renewable electricity instead. It reduces the energy consumption tremendously and reduces the operational cost. In the novel method, during manufacture, the biological catalysts promote electrochemical reactions in the biobattery reactor system. And with higher renewable power generation, more metal oxide is produced. And under the proper conditions with CO2, light and certain conditions, the microorganisms can fix CO2 and convert CO2 to biofuel or multi-carbon compounds at the same time.

Abstract: The present disclosure provides an application software (APP) testing method, an electronic device, and a computer-readable storage medium. The APP testing method includes: acquiring a key log; determining information related to a tested fault cause according to the key log; acquiring a User Interface (UI) screenshot; and comparing the UI screenshot with a pre-stored UI design drawing, and determining whether there is a difference between the UI screenshot and the UI design drawing. The APP testing method provided by the present disclosure can realize quick check of network access logs and crash logs even without a platform of a development tool, assist testers and developers in problem reproduction and fault location, and improve development efficiency of the developers.

Abstract: A multi-task learning method comprises: determining participating nodes; performing clustering to the participating nodes and determining several clusters; determining a global model for the clusters according to the several clusters and by means of the federated learning within the cluster; determining a cluster key feature set of any one of the clusters according to the cluster model and by means of calculation with the SHAP framework; determining a global model according to the cluster key feature set; and training the global model according to the any one of the clusters, and determining the cluster model of the any one of the clusters, wherein a plurality of the clusters are used for achieving multi-task learning. In the present application, by clustering, the participating nodes having similar device performance and data distribution are collected into the same group, and the participating nodes within the same cluster are trained together.

Abstract: The present disclosure relates to a three-degree-of-freedom convenient mobile powder recovery device and a recovery method. The three-degree-of-freedom convenient mobile powder recovery device includes: a powder recovery module, a three-degree-of-freedom adjusting module and a drying and sieving module, wherein the powder recovery module is arranged on the three-degree-of-freedom adjusting module and used to recover powder; and the drying and sieving module is arranged on the three-degree-of-freedom adjusting module, connected to the powder recovery module and used to dry and sieve powder recovered by the powder recovery module. The three-degree-of-freedom convenient mobile powder recovery device has a simple structure, which is convenient to be operated. The height and position of the three-degree-of-freedom convenient mobile powder recovery device can be adjusted automatically, so that the recovery device is suitable for the setting of laser processing systems with various heights in the telescopic range.

Abstract: Embodiments of this application provide a watermark embedding method applicable to a three-dimensional (3D) field. By combining vertex data of an original 3D model and vertex data of a 3D watermark, and combining material data of the original 3D model and material data of the 3D watermark, the original 3D model and the 3D watermark can be synthesized into a 3D model. In addition, before and after watermark embedding, an appearance of the original 3D model can remain unchanged. This avoids impact of watermark embedding on the appearance and use value of the 3D model, and ensures a display effect of the 3D model. Further, a function of encrypting the embedded 3D watermark may be implemented, and the 3D watermark cannot be easily removed or modified. This can effectively ensure the copyright of the original 3D model, and better promote a digital asset such as the 3D model.

Abstract: The embodiments of this application disclose a method for generating sign language video performed by a computer device. The method includes the following steps: acquiring acquiring listener text, the listener text conforming to grammatical structures of a hearing-friendly person; performing summarization extraction on the listener text to obtain summary text, a text length of the summary text being shorter than a text length of the listener text; converting the summary text into sign language text, the sign language text conforming to grammatical structures of a hearing-impaired person; and generating the sign language video based on the sign language text.

Abstract: An ultra-high phosphorus molten iron low-cost smelting method for polar steel includes successively deoxidizing and tapping alloying raw materials including molten iron; performing slag adjusting and refining on the molten steel obtained in the converter smelting step to obtain a refined molten steel; vacuum degassing the refined molten steel; and performing continuous casting on the molten steel obtained after the RH degassing step to obtain a cast billet.

Abstract: The present disclosure provides a method and apparatus for assigning a task. The method may include: generating a testing task list based on a received testing task request, the testing task list including at least one testing task; acquiring a currently assigned task of at least one terminal; and adopting, in response to calculating load information of the currently assigned task executed by all terminals, a different task assignment rule based on the load information to assign a testing task in the testing task list to each terminal, the load information including an estimated time consumption and an amount of generated data of the currently assigned task executed by the respective terminals.

Abstract: A biological cathode and biological battery system for converting carbon feedstock into organic chemicals and producing electrical current is described. The method involves a biological battery system comprising of a reaction vessel and biological cathode electrode. The organic chemicals are processed in a space having at least one anode and at least one cathode with cathode electrode having biologically active material adjacent to at least one layer of the cathode electrode. The material can be a gel, liquid, or solid. This system can be carried out to process organic waste in an environmentally friendly manner.

Abstract: Examples of the present disclosure provide a method for setting up a route path, a device and a computer-readable storage medium. The method may include: establishing a neighbor list; wherein, the neighbor list comprises neighbor nodes of the node and position information of the neighbor nodes; in response to receiving a routing request (RREQ) message from a previous hop node, recording a source Internet Protocol (IP) address of a source node contained in the RREQ message as a destination IP address in a routing table established in the node; recording the previous hop node as a next hop node corresponding to the destination IP address in the routing table; selecting a pre-determined number of nodes from the neighbor list as next hop nodes of the RREQ message according to the position information of the neighbor nodes; and sending the RREQ message to the next hop nodes.

Abstract: A computer includes a chassis, a circuit board installed in the chassis, and a support member. The support member includes a support portion, a first clamping portion, and a second clamping portion. The first clamping portion and the second clamping portion are respectively located at two ends of the support portion. The first clamping portion is configured to clamp the circuit board. The second clamping portion is configured to clamp the chassis.

Abstract: Examples of the present disclosure provide a method for setting up a route path, a device and a computer-readable storage medium. The method may include: establishing a neighbor list; wherein, the neighbor list comprises neighbor nodes of the node and position information of the neighbor nodes; in response to receiving a routing request (RREQ) message from a previous hop node, recording a source Internet Protocol (IP) address of a source node contained in the RREQ message as a destination IP address in a routing table established in the node; recording the previous hop node as a next hop node corresponding to the destination IP address in the routing table; selecting a pre-determined number of nodes from the neighbor list as next hop nodes of the RREQ message according to the position information of the neighbor nodes; and sending the RREQ message to the next hop nodes.

Abstract: A computer includes a chassis, a circuit board installed in the chassis, and a support member. The support member includes a support portion, a first clamping portion, and a second clamping portion. The first clamping portion and the second clamping portion are respectively located at two ends of the support portion. The first clamping portion is configured to clamp the circuit board. The second clamping portion is configured to clamp the chassis.

Abstract: Data is replicated between primary and secondary storage systems using a data pulling process or a log shipping process. If data is to be replicated through the log shipping process, a transaction and its associated data get stored in a transaction log in the secondary storage system. Subsequently, when the transaction gets executed, actual data gets persisted from the transaction log to a data log in the secondary storage system. If the data is to be replicated through the data pulling process, the transaction is stored in the transaction log. However, the associated data for the transaction is retrieved from the first primary storage system and stored directly in the data log in the secondary system.

Abstract: A system and method of detecting a sobriety of a subject utilizing a mobile device. The mobile device includes a processor and a memory storing historical data including movements indicating a drunk state, movements indicating a sober state, or a combination of both. The mobile device further includes a user interface, a recorder operable to capture a recording, and an accelerometer operable to generate acceleration values of movements of the recording. When the mobile device captures the recording of a subject performing movements, the processor compares the data on the memory with the acceleration values of the movements of the subject and produces an indication of either a drunk state of the subject or a sober state of the subject on the user interface.

Abstract: A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating.

Abstract: The embodiments of the present application disclose a method and apparatus for acquiring wireless access points information. One specific embodiment of the method comprises: in response to detecting a user operation of initiating a target application, acquiring a Wifi privilege; in response to detecting that the user opening a system interface for displaying a wireless access points information list, acquiring the wireless access points information list; in response to detecting a switch from the system interface for displaying the wireless access points information list to an interface of the target application, presenting the wireless access points information list in the interface of the target application. The embodiment implements displaying the wireless access points information list in the interface of the target application of a terminal device.

Abstract: Embodiments of this application provide a watermark embedding method applicable to a three-dimensional (3D) field. By combining vertex data of an original 3D model and vertex data of a 3D watermark, and combining material data of the original 3D model and material data of the 3D watermark, the original 3D model and the 3D watermark can be synthesized into a 3D model. In addition, before and after watermark embedding, an appearance of the original 3D model can remain unchanged. This avoids impact of watermark embedding on the appearance and use value of the 3D model, and ensures a display effect of the 3D model. Further, a function of encrypting the embedded 3D watermark may be implemented, and the 3D watermark cannot be easily removed or modified. This can effectively ensure the copyright of the original 3D model, and better promote a digital asset such as the 3D model.