Abstract: A pose estimation apparatus and method for a robotic arm to grasp a target based on monocular infrared thermal imaging vision are provided. The pose estimation apparatus includes a monocular infrared thermal imaging camera, a laser ranging module, an edge computing platform, and an embedded processor. The monocular infrared thermal imaging camera can perform imaging based on a temperature difference between a target and an environment in smoke, combustion, and explosion environments in which a specialized robot works. The laser ranging module can assist in measuring a distance of a to-be-grasped target. An algorithm process is deployed on the edge computing platform. The embedded processor completes motion control of a robotic arm.

Abstract: System for designing a perforating gun capable of reducing energy consumption includes a survey module, an operation module, a monitoring module, a storage module, and a computing module. The operation module is configured to match a target perforating gun to perform a perforating operation to perform an HF operation, obtain a status parameter when the target perforating gun performs the perforating operation and send the status parameter to the monitoring module. The survey module is configured to obtain basic data of a target operation region.

Abstract: The present disclosure belongs to the technical field of artificial intelligence, and provides a pose estimation apparatus and method for a robotic arm to grasp a target based on monocular infrared thermal imaging vision. The present disclosure provides a pose estimation apparatus for automatically grasping a target using a robotic arm of a specialized robot, which includes a monocular infrared thermal imaging camera, a laser ranging module, an edge computing platform, and an embedded processor. The monocular infrared thermal imaging camera can perform imaging based on a temperature difference between a target and an environment in smoke, combustion, and explosion environments in which a specialized robot works. The laser ranging module can assist in measuring a distance of a to-be-grasped target. An algorithm process in the present disclosure is deployed on the edge computing platform. The embedded processor completes motion control of a robotic arm.

Abstract: A method for calculating a sensitivity of a displacement of Synthetic Aperture Radar (SAR) along line-of-sight direction to a slope gradient and a slope aspect is provided, comprising: obtaining SAR data and Digital Elevation Model (DEM) data covering slope bodies, and extracting a local incident angle of an image by utilizing a satellite side-looking imaging principle; carrying out geometric distortion on the slope bodies under ascending and descending orbits by utilizing the local incident angle, to obtain specific locations of geometric distortion areas under ascending and descending orbit; calculating sensitivities of detections to changes of the slope gradient and the slope aspect under ascending and descending orbits according to the extracted parameter information of the SAR satellite in ascending and descending orbits and satellite heights, and dividing a sensitivity distribution by combining the sensitivity and the specific locations of the geometric distortion.

Abstract: A method for promoting the rapid precipitation of travertine crystals by algae is disclosed. Microalgae is added to a body of water having a calcium ion concentration of 100-500 mg/L and stirred. The amount of microalgae is 0.1-8×108 cells/L. The invention adopts a method for promoting the rapid precipitation of travertine crystals by algae, which significantly improves the sedimentation rate of travertine crystals. At the same time, there are pseudomonas in the calcified water body of algae, which can be used for algae-lysing bacteria isolation and purification.

Abstract: An automatically-cleanable thickening performance evaluation instrument for drilling LCMs includes a cleaning device, a kettle body, a thickening motor, a heating component, a test ending component, a top cover, and a bottom cover, where upper and lower ends of the kettle body are both opened; the kettle body is arranged in a third bearing inner race, a third bearing outer race is connected to a first limb, and the first limb is configured to limit a position of the kettle body; and the kettle body is detachably connected to the thickening motor and driven by the thickening motor to rotate. The instrument can realize electric heating and air pressurization to simulate the underground environment, and the kettle body can be completely sealed, such that a measured thickening time is close to an actual thickening time. Moreover, the instrument can be automatically cleaned at the end of a test.

Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

Abstract: The invention relates to a method for microbial remediation of underground water petroleum hydrocarbon contamination by regulating soil buffer capability, which comprises detecting the soil particle size of contaminated site soil, dividing the contaminated site soil into coarse-grained soil and fine-grained soil; dividing the contaminated site soil into high buffer capacity soil and low buffer capacity soil; and adjusting the composition and ratio of a biostimulant solution added to the contaminated site soil based on the classification of the contaminated site soil. The detecting step includes classifying soil with a particle size between 0.075 mm and 60 mm and a mass greater than or equal to 50% of the total mass as coarse-grained soil; and classifying soil with a particle size not greater than 0.075 mm and a mass greater than or equal to 50% as fine-grained soil.

Abstract: The invention provides a suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof, relating to the field of oil and gas production technologies. The suspension modifier is a controlled release nanoemulsion and comprises surface hydrophobic modifier, surfactant, cosurfactant and water. The suspension modifier is directly added into clear-water or active-water fracturing fluid while the proppant is added into water. After stirring, the suspension modifier is capable of self-assembling and being adsorbed on the proppant surface, so that the proppant surface becomes hydrophobic and aerophilic. The invention no longer requires the proppant to be pretreated, and the bubble-suspended proppant can be obtained directly by adding the suspension modifier to the clear-water or active-water fracturing fluid, and meanwhile adding the proppant to the fracturing fluid.

Abstract: The present invention relates to a groundwater circulation well system with pressure-adjustable hydrodynamic cavitation, including a circulation well body, a sucked and injected water circulation assembly and a hydrodynamic cavitator. The sucked and injected water circulation assembly is based on a water suction and injection pump. The hydrodynamic cavitator is provided, inside a vortex chamber, with a vortex water inlet column capable of changing a water passing aperture. The hydrodynamic cavitator is capable of changing a bubbling pressure and a breaking pressure of hydrodynamic cavitation bubbles in the vortex water inlet column. The hydrodynamic cavitator generates vortices in the circulation well body to accelerate uniform mixing of a remediation agent and the groundwater. Energy from collapsing and bursting of the hydrodynamic cavitation bubbles activates the remediation agent such that contaminants in the groundwater are efficiently degraded.

Abstract: The invention provides a sampling device for geological fluid detection, relates to the technical field of fluid detection. The sampling device comprises a support frame, the support frame is of an L-shaped structure, and a second support plate is arranged at an upper portion of the support frame; the protection cover is mounted at the corner of a bottom portion of the support frame. The water fixing member is clamped above the bottom portion of the support frame; the locking inclined block is mounted at the bottom portion of the; and the detector is provided with a water inlet pipe. Fluid at different depths is detected through cooperation of the mounting sleeve and the lifting frame, a fluid drainage tube is wound around the winding wheel, the mounting sleeve is driven by the lifting frame to adjust the position through the arrangement of the gear and the rack, the fluid is sampled through the sampling test tube.

Abstract: The present disclosure discloses a classification method and system for fine-grained mixed sedimentary rocks, a medium and a terminal. Core description and thin section observation are used to accurately identify the sedimentary structure types and their vertical distribution characteristics from the macroscopic and microscopic perspectives, and indicates the mixed sedimentation characteristics of combination of different lamina or laminar couplets. The micro-drilling sampling technique is used to sample the samples with different types of sedimentary structures while avoiding diagenetic minerals. X-ray diffraction mineral content analysis and a high-precision carbon-sulfur analyzer are used to obtain the contents of different types of minerals and the total organic carbon contents in each sample, respectively, the basic rock type of each sample was determined using a triangular classification diagram.

Abstract: The present disclosure belongs to the field of environmental protection and relates to a method for remediating groundwater chlorophenols organic contamination. The method includes determining a location of a contamination source; setting up an injection well based on the location of the contamination source; and injecting a remediation reagent into groundwater in a to-be-remediated region through the injection well so as to degrade chlorophenols organic contamination in the groundwater in the to-be-remediated region.

Abstract: The present disclosure provides a heat transfer limit experimental device of a high-temperature heat pipe equipped with a convenient temperature measurement box and a method based on the heat transfer limit experimental device. The heat transfer limit experimental device includes a high-temperature heat pipe, an electric heating system, a convenient temperature measurement box, a control system, a gas-cooled heat exchange system, and a data acquisition system. The electric heating system is connected to the high-temperature heat pipe. The convenient temperature measurement box is connected to the gas-cooled heat exchange system. The data acquisition system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system. The control system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system.

Abstract: The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.

Abstract: The present disclosure discloses a classification method and system for fine-grained mixed sedimentary rocks, a medium and a terminal. Core description and thin section observation are used to accurately identify the sedimentary structure types and their vertical distribution characteristics from the macroscopic and microscopic perspectives, and indicates the mixed sedimentation characteristics of combination of different lamina or laminar couplets. The micro-drilling sampling technique is used to sample the samples with different types of sedimentary structures while avoiding diagenetic minerals. X-ray diffraction mineral content analysis and a high-precision carbon-sulfur analyzer are used to obtain the contents of different types of minerals and the total organic carbon contents in each sample, respectively, the basic rock type of each sample was determined using a triangular classification diagram.

Abstract: Disclosed is a multi-shaft pressurized rock mechanics tester, pertaining to the technical field of rock mechanics testing devices, comprising a base; the base is of an integral rectangular structure, and welded six vertical support plates symmetrically at the front and back ends, a -shaped bracket plate is horizontally welded at the top of the six vertical support plates (“” is a Chinese character, read as “Ri”), and a bracket plate is rotatably installed on the top section of the three rear vertical support plates, pressed against the -shaped bracket plate; the left and right sides of the base are symmetrically welded with four vertical bracing plates, an I-shaped installation plate is welded on the top of the four vertical bracing plates, four hydraulic cylinders are locked, fixed and hoisted on the bottom of the I-shaped installation plate with screws.

Abstract: An apparatus for dismounting and mounting a high-voltage line T-connector in a hot-line operation includes a lifting platform, a four-axis platform and an end-effector mechanism; the four-axis platform and the end-effector mechanism are both electrically conductive structures; the four-axis platform is fixedly mounted on the top of the lifting platform, and an insulating layer is provided between the four-axis platform and the lifting platform; the four-axis platform is movable in the X direction, the Y direction, and the Z direction, and is rotatable around the Z direction; the four-axis platform is provided with an equipotential mechanism; the end-effector mechanism is detachably fastened to the four-axis platform; and a bolt loosening/tightening mechanism or a nut cutting device capable of moving in the X direction, the Y direction, and the Z direction is provided on the end-effector mechanism.

Abstract: Disclosed is a multi-shaft pressurized rock mechanics tester, pertaining to the technical field of rock mechanics testing devices, comprising a base; the base is of an integral rectangular structure, and welded six vertical support plates symmetrically at the front and back ends, a -shaped bracket plate is horizontally welded at the top of the six vertical support plates (“” is a Chinese character, read as “Ri”), and a bracket plate is rotatably installed on the top section of the three rear vertical support plates, pressed against the -shaped bracket plate; the left and right sides of the base are symmetrically welded with four vertical bracing plates, an I-shaped installation plate is welded on the top of the four vertical bracing plates, four hydraulic cylinders are locked, fixed and hoisted on the bottom of the I-shaped installation plate with screws.

Abstract: The present invention provides a multifunctional rock mechanics tester, pertaining to the technical field of mechanics tester, consisting of a base; wherein a power mechanism is mounted on the top of the base, two tension testing mechanisms are arranged on the power mechanism in an up-and-down symmetrical way, a clamping mechanism is mounted on each tension testing mechanism, a rock testing block is clamped between the two clamping mechanisms. The present invention realizes the tension and pressure testing of the rock test block through the arrangement of tension testing mechanism and pressure testing mechanism, thus improving the functionality of the present mechanics tester, which not only reduces the testing cost, but also effectively decreases the occupied space; the present invention solves the problem that the traditional mechanics tester can only complete one kind of test when it is used.