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2025
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Invention
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Early warning method for fatigue damage state of tie rod in diameter expanding machine based on o... |
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Invention
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Method for preparing general-purpose cement by chlorination roasting of aluminosilicates.
A meth... |
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2024
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Invention
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Signal transmission device capable of shortening turn-off time of controlled source in electromag... |
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Invention
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Transmission device and method for multi-frequency equal-amplitude non-harmonic electrical prospe... |
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Invention
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Method for measuring spectrum parameters of formation outcrop and rock mass.
A device and method... |
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Invention
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Precise fault location apparatus and method for collector line in onshore wind farm.
Provided is... |
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Invention
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Method for preparing general-purpose cement.
A method for preparing a general-purpose cement is ... |
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Invention
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Method of preparing alkali-activated cement by stepwise calcination with sodium chloride.
A meth... |
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Invention
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Communication delay compensation method and system based on autonomous robot.
The disclosure pro... |
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2023
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Invention
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Landslide hazard monitoring and early warning method and system based on real 3d. A landslide ris... |
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Invention
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Detection device for high-frequency pseudo-random (pn) spread spectrum (ss) coded sequence signal... |
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Invention
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Multi-point drilling and sampling device applied to seafloor tracked vehicle. A drilling and samp... |
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Invention
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Elastic torsional damper. An elastic torsional damper, comprising: an input part (4), an output p... |
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Invention
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Pretension and tensile impact test apparatus capable of simulating full-sea-depth environment.
A... |
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Invention
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Testing device for simulating frictional wear behaviors of threaded joint of drill pipe under tur... |
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Invention
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Full-sea depth multi-point in-situ sampler, and sampling and transfer method using the same.
A f... |
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Invention
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Method for identifying fragile lines in power grids based on electrical betweenness. Disclosed is... |
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2022
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Invention
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Micro core-drilling testing system for high-pressure environment. A micro core-drilling testing s... |
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Invention
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Method and system for controlling vibration of rotor in turboshaft engine. A method and system fo... |
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Invention
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Friction and wear testing platform capable of simulating high-pressure, silt-containing and turbi... |
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Invention
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High-density integrated magnetic receiving antenna for electromagnetic exploration.
A high-densi... |
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Invention
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Device and method for reducing turn-off time of transient electromagnetic transmitting signal. A ... |
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Invention
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Electrical prospecting signal transmission device capable of suppressing electromagnetic coupling... |
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Invention
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System and method for integratedly testing damping performance of hydro-pneumatic suspension vehi... |
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2021
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Invention
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Optimization design method for noise reduction of ac traction motor. To solve the problem of larg... |
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Invention
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Horizontal drilling machine with impact device. A horizontal drilling machine with an impact devi... |
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Invention
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Horizontal drilling machine with an in-situ detection device. A horizontal drilling machine with ... |
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Invention
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Long-distance core drilling method suitable for a horizontal geological core drilling rig. A long... |
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Invention
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Method for intelligent fault detection and location of power distribution network. A method for i... |
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Invention
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Pmsm demagnetization fault diagnosis method based on fuzzy intelligent learning of torque signals... |
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Invention
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Active heave compensation control method for marine winch driven by switched reluctance electric ... |
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Invention
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Method for optimizing structured mesh generation for a thermal analysis model of a rotor bar of a... |
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Invention
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Signal transmitting device and method for reducing transient electromagnetic turn-off time. Discl... |
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Invention
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High-density integrated antenna for magnetic field receiving in electromagnetic exploration. A hi... |
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Invention
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Electrical prospecting signal sending device and method for suppressing electromagnetic coupling ... |
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Invention
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Denoising optimization method for ac traction motor by chamfering stator tooth shoulder with insc... |
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Invention
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Noise reduction method by cutting a corner of a tooth shoulder of a stator of an ac traction moto... |
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Invention
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Sensorless control method and apparatus for a three-phase switched reluctance motor. A sensorless... |
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Invention
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Portable seafloor drill rig for submersible for multi-point core drilling. The present disclosure... |
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Invention
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Suction sampler system for in situ collection of deep-sea floor organisms and method of using sam... |
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2020
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Invention
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Method for determining stability range of control parameters of buck-boost converter based on seg... |
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Invention
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Modeling method of stator winding air gap for temperature field analysis of ac traction motor. A ... |
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Invention
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Method for controlling speed regulation system of asynchronous motor based on buck-boost matrix c... |
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Invention
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Method for self-adaptively optimizing parameters of a main circuit in a bbmc based on a current r... |
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Invention
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Method for adaptively adjusting control parameters of bbmc-based speed regulation system of async... |
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Invention
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Support device for rotation of high-capacity and compact drill pipe storage unit of seabed drilli... |
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2019
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Invention
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Sensorless control method and device for three-phase switched reluctance motor. Disclosed is a se... |
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Invention
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Stator winding air gap modeling method for temperature field analysis of alternating current trac... |
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Invention
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Buck-boost converter control parameter stability domain determination method based on segmented d... |
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Invention
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Adaptive control parameter adjustment method for bbmc asynchronous electric motor speed regulatio... |
