Abstract: The present disclosure provides an optical module including a circuit board and an optical transceiver assembly. The circuit board is provided with a hollowed-out area. The optical transceiver assembly includes a transceiver base and an optical assembly. The transceiver base includes a base body and a first support protrusion, and the base body is also provided thereon with a second support protrusion and a storage groove. The first support protrusion, the second support protrusion and the storage groove are all engaged with the hollowed-out area. The optical assembly includes a laser chip and a lithium niobate chip. The laser chip is located at a first end of the first support protrusion, and the lithium niobate chip is located at a second end of the first support protrusion. The laser chip is located in the storage groove, and the lithium niobate chip is located on the first support protrusion.

Abstract: A calculation method for fractal dimensions of shale pores includes steps as follows. S1: multiple shale samples from a target stratum of a study area are obtained, parameter values of geological parameters of each of the multiple shale samples are obtained, followed by dividing the multiple shale samples into target shale samples and experimental shale samples. S2: PCA is performed on the parameter values to obtain principal components representing a variation of the geological parameters. fractal dimensions are calculated based on an existing fractal dimension calculation method. S3: the principal components are used as independent variables and the fractal dimensions are used as dependent variables, followed by performing regression analysis to obtain a quantitative calculation model. S4: the fractal dimensions of the target shale sample are calculated according to the parameter values and the quantitative calculation model for the fractal dimension based on the parameter values.

Abstract: There is provided a method and apparatus of training a model, a device, and a medium, which relate to artificial intelligence, and in particular to a deep learning and image processing technology. The method may include: determining a plurality of augmented sample sets associated with a plurality of original samples; determining a first constraint according to a first model based on the plurality of augmented sample sets; determining a second constraint according to the first model and a second model based on the plurality of augmented sample sets, wherein the second constraint is associated with a difference between outputs of the first model and the second model for one augmented sample, and the first model has a complexity lower than that of the second model; training the first model based on at least the first constraint and the second constraint, so as to obtain a trained first model.

Abstract: Active solder paste compositions for cladding ceramic with copper, methods for cladding ceramic with copper, and copper-clad ceramic materials. Active solder paste compositions comprise, on the basis of the total weight of the active solder paste composition, 1-20 wt % of a first metal powder and 75-94 wt % of a second metal powder, with the balance being a flux, wherein the first metal powder contains titanium hydride and the second metal powder contains a copper-phosphorus-silver alloy. The active solder paste compositions can not only decrease the silver content, but can also reduce the welding temperature. Moreover, the connection strength of Ti and Cu is further enhanced, and the welding strength is improved, such that the material is less prone to segregation.

Abstract: A method for controlling an application instance to be online or offline includes: acquiring target indication information, the target indication information including an identification of a target application instance; according to the target indication information and stored target instances, determining an online or offline control instruction of the target application instance, wherein the target instances including application instances that are started and are in an offline state; and according to the online or offline control instruction of the target application instance, controlling the target application instance to be online or offline.

Abstract: Assets in a virtual environment are assigned to locations based on attributes of the locations, such as light level, temperature, etc. Attributes are determined based on simulating the virtual environment. The virtual environment can be simulated over a period of time, during which multiple attribute values can be recorded, resulting in an aggregated attribute value to better enable more immersive asset placement.

Abstract: A motor malfunction monitoring device for monitoring a malfunction of a drive motor, includes: vibration sensors for detecting for one or more components of the drive motor transverse vibration in a direction parallel to a mounting plane of the drive motor and perpendicular to a longitudinal direction of the drive motor or longitudinal vibration in a direction perpendicular to both the mounting plane and the longitudinal direction of the drive motor; a voltage sensor for detecting a voltage of the drive motor or a current sensor for detecting a current of the drive motor; and a data storage storing a database of normal operation spectrums of one of the transverse vibration or the longitudinal vibration during a normal operation of the drive motor, and of one of the voltage or the current during a normal operation of the drive motor.

Abstract: A motor malfunction monitoring device for monitoring a malfunction of a drive motor, includes: vibration sensors for detecting for one or more components of the drive motor transverse vibration in a direction parallel to a mounting plane of the drive motor and perpendicular to a longitudinal direction of the drive motor or longitudinal vibration in a direction perpendicular to both the mounting plane and the longitudinal direction of the drive motor; a voltage sensor for detecting a voltage of the drive motor or a current sensor for detecting a current of the drive motor; and a data storage storing a database of normal operation spectrums of one of the transverse vibration or the longitudinal vibration during a normal operation of the drive motor, and of one of the voltage or the current during a normal operation of the drive motor.

Abstract: The present disclosure relates to the technical field of automation equipment and specifically discloses a sample preparation workstation and a sample preparation system. The sample preparation workstation includes a preparation platform, a robotic arm mounted to the preparation platform, a sample exchange chamber mounted to the preparation platform and used for exchanging a sample before or after experiment with the outside world, a transfer tool mounted to the robotic arm, and an experimental apparatus mounted to the preparation platform. The robotic arm drives the transfer tool to move so that the transfer tool transfers the sample before experiment in the sample exchange chamber to the experimental apparatus for experiment and transfers the sample after experiment to the sample exchange chamber. According to an embodiment of the present disclosure, the full-automatic sample preparation can be realized, the labor cost can be saved and the experiment efficiency can be improved.

Abstract: A substrate and a method of manufacturing thereof. A scratch-resistant layer is formed before filling the solder paste in the area corresponding to the binding terminal of the light-emitting device on the substrate, so that each circuit in the drive circuit area of the substrate will not be damaged during screen printing. After filling solder paste, the scratch-resistant layer is stripped off to prevent the circuit on the substrate from being damaged, without affecting the performance of the substrate.

Abstract: Techniques are described with respect to a system, method, and computer program product for prioritizing users in a virtual environment. An associated method includes analyzing a virtual environment; determining a context of a plurality of users associated with the virtual environment; ranking each user of the plurality of users based on the analysis and the context; and visualizing the plurality of users in a prioritized depiction within the virtual environment based on the ranking.

Abstract: An optical module including an optical transceiver component having a transceiver case and a first circuit board. The transceiver case is formed, at a first end, with a through-channel and, at a second end, with an insertion port for inserting the first circuit board, optical components including a laser chip, an optical modulation chip, an optical reception chip and the like are arranged in the transceiver case. The first circuit board has a notch. The optical modulation chip is located corresponding to the notch and includes an optical modulation film layer laid on a substrate. A first bonding pad is provided on the optical modulation film layer, which is electrically connected to the first circuit board; an arc-shaped optical waveguide is provided inside the optical modulation film layer, light inlet and outlet of which are located at the same end of the optical modulation film layer.

Abstract: A method for restoring waterbird habitats based on the “ecological leverage” theory is provided. The method includes: Step 1: Determining a target waterbird habitat to be restored based on the ecological environment of a target wetland area; Step 2: Selecting several suitable basic ecological units that are distributed in a scattered, circular, or S-shaped pattern from the target wetland area; Step 3: Optimizing the environment of the selected basic ecological units according to the target waterbird habitat; Step 4: Conducting long-term monitoring of the ecological environment and waterbird population of the optimized ecological units, assessing the restoration of the waterbird habitat, and further optimizing the ecological units based on the assessment results. The method of the present invention achieves an enhancement in waterbird diversity within a region with the minimum ecological space and waterbird habitat restoration efforts.

Abstract: An automatic grease injection system comprises a host module, a shunting module and a control module; the host module comprises a power device and a grease injection device, in which the power device drives the grease injection device to output sealing grease; the shunting module comprises a control valve and a connecting pipeline, the connecting pipeline comprises a plurality of shunting branch pipes and a grease injection main pipe which are connected to each other, in which the grease injection main pipe is connected to the grease injection device, and each of the shunting branch pipes is connected to a device to be injected with grease, and sealing grease output by the host module is selectively connected to the device to be injected with grease through the shunting module; the control module is to output control signals to the host module and the shunting module.

Abstract: In a fracturing control apparatus, a first chemical agent storage tank is connected with a first delivery pump, and a material outlet of the first delivery pump communicates with a first position of a first fracturing fluid conveying pipeline. An outlet of the first fracturing fluid conveying pipeline communicates with an inlet of a fracturing pump, an outlet of the fracturing pump communicates with an inlet of a second fracturing fluid conveying pipeline, and a first flow detector is arranged at a second position of the second fracturing fluid conveying pipeline. The first delivery pump is connected with a first output interface of a controller, and the first flow detector is connected with a first input interface of the controller. The fracturing control apparatus and the control method of the fracturing control apparatus are used for adding chemical agents into fracturing fluids.

Abstract: A tunnel constraint anchor cable and a method for improving stability of an initial support structure. The tunnel constraint anchor cable comprises steel strands (1) anchored in surrounding rock, first anchor plates (2) and first anchorage devices (3) which are installed on the surface of the surrounding rock, longitudinal connection members (5) installed between two adjacent steel ribs (4), and second anchor plates (6) and second anchorage devices (7) which are installed on the longitudinal connection members (5). With the support of the tunnel constraint anchor cable, the ability of the initial support structure to resist self instability and destruction is improved, overall settlement and convergence deformation of the initial support structure can also be suppressed. The method for improving stability of an initial support structure has the characteristics of simplicity, speed, reliability, and avoiding interference with subsequent construction processes of tunnels.

Abstract: A control system includes: a fracturing control device configured to acquire a target fracturing pressure of a fracturing unit, perform loop control on the fracturing unit by taking the target fracturing pressure as a control target, and set a target sand blending pressure for the sand blending unit; a sand blending control device configured to perform loop control on the sand blending unit by taking the target sand blending pressure as a control target.

Abstract: Disclosed in the present invention are a cleaning solution for a high-yield-stress ceramic material 3D printing blank, a preparation method therefor and the use thereof. The cleaning solution is composed of a main cleaning agent and an auxiliary cleaning agent, wherein the main cleaning agent is isobornyl acrylate (IBOA), N-acryloylmorpholine (ACMO), hydroxyethyl methacrylate (HEMA), 3-ethyl-3-oxetanemethanol (EHO), or a combination thereof. According to the cleaning solution of the present invention, ultrasonic cleaning or pressure spraying is used, such that the problem of cleaning the high-yield-stress ceramic material 3D printing blank is effectively solved. The present invention is not only simple to clean, but also has a good effect and excellent efficiency.