7results about How to "Achieve engineering" patented technology

The invention discloses a membrane-aerogel composite tubular tissue engineering scaffold mold and a preparation method thereof, the membrane-aerogel composite tubular tissue engineering scaffold mold comprises a plurality of shelves, a plurality of struts, a plurality of gaskets, a middle core column and a hollow transparent tube, the struts are used for supporting the shelves; at least one annular gasket groove is coaxially formed in each layer of shelf and is used for fixing the gasket; the middle core column is fixed through the middle core column positioning holes of the upper gasket and the lower gasket; and the hollow transparent tube is fixed through the transparent tube positioning hole of the middle gasket and the transparent tube positioning groove of the lower gasket. The invention further discloses a preparation method of the membrane-aerogel composite tubular tissue engineering scaffold, the mold is adopted, accurate axis matching of the inner-layer tubular fiber membrane and the outer-layer tubular aerogel is achieved, and therefore the stability and integrity of the overall structure are guaranteed, and long-term storage is facilitated.

The present invention discloses an intelligent landscaping and desert ecological restoration device, including a database, a switchboard server, a mobile switch, a protective tube seedling center, a data collection device, and a planting management device. The input and output ends of the database are connected to the input and output ends of the switchboard server in a coordinated communication manner, the input and output ends of the switchboard server are connected to the input and output ends of the mobile switch in a coordinated communication manner, the input and output ends of the mobile switch are connected to the input and output ends of the protective tube seedling center in a coordinated communication manner, the input and output ends of the mobile switch are connected to the input and output ends of the data collection device in a coordinated communication manner, and the input and output ends of the mobile switch are connected to the input and output ends of the planting management device in a coordinated communication manner. The present invention constructs a modern and intelligent landscaping and desert ecological restoration device by developing an overall topological architecture based on the intelligent landscaping and desert ecological restoration device.

The invention discloses a nanobubble and micron bubble gradient generator, comprising a nozzle, a first mixing section, a first self-driven rotating impeller, a first gradually expanding section, an air suction chamber, a second mixing section, a second self-driven rotating impeller, a second gradually expanding section and a gas phase inlet pipe, wherein the nozzle, the first mixing section, the first gradually expanding section, the air suction chamber, the second mixing section and the second gradually expanding section are connected in sequence by means of threads, flanges or welding. The invention precipitates nanobubbles by means of enhanced hydraulic cavitation effect in the front half of the device, forms micron bubbles by means of jet entrainment in the back half of the device, adjusts the size and concentration of the precipitated nanobubbles by changing the rotation speed of the first self-driven rotating impeller, and the second self-driven rotating impeller can change the turbulence intensity of the gas-liquid two-phase flow field, thereby affecting the size and dispersion of the bubbles, and the device has a simple structure and low energy consumption, which is conducive to the engineering of the device.

The utility model provides magnetic resonance equipment and a radio frequency coil assembly and a radio frequency coil thereof. The radio frequency coil assembly comprises a coil main body part and a preset jumper part, the preset jumper wire part is used for placing a plurality of preset jumper wires; the coil main body part comprises a PCB, the PCB is provided with a first coil unit and a second coil unit which are overlapped, and the first coil unit and the second coil unit form a first overlapping part at the overlapping part; at least one of the first coil unit and the second coil unit is provided with a first jumper welding part; the first jumper wire welding part is provided with a first adjusting part extending in the first direction, and the first jumper wire can adjust the position where the first jumper wire and the first jumper wire welding part are welded on the first adjusting part in the first direction so as to adjust the overlapping area of the first overlapping part. According to the radio frequency coil assembly, engineering and standardization in the coil decoupling process can be achieved, the manufacturing difficulty is lowered, and the reliability and consistency of the coil are improved.

The invention provides a test case engineering management system and method based on a layered structure, and belongs to the technical field of computers. The system comprises a hierarchical structure management module which is used for constructing an industry-field-project-module four-level hierarchical system and realizing structured organization and inheritance multiplexing of test cases; the basic library construction module is used for automatically extracting generality test cases through matching degree analysis and a clustering algorithm and incorporating the generality test cases into versioning management; the closed-loop iteration module is used for continuously optimizing the test case by adopting a reinforcement learning algorithm according to the test execution feedback data; the use case expansion module is used for integrating specific demand use cases in a plug-in mode and executing compatibility check; and the unified management platform is used for integrating the modules and providing full-life-cycle management service. According to the method, the reuse rate and the maintenance efficiency of the test cases are remarkably improved, engineering, automatic and intelligent management of test assets is achieved, and the method adapts to software development requirements of rapid iteration.

The invention discloses an engineering rock mass dynamics simulation test system and a test method thereof, comprising a main bearing module, a dynamic sealing module, a dynamic and static loading module, a gas-liquid filling module, a temperature control and insulation module, a drilling and excavation and support module, and a multi-physical field information perception module, which can truly simulate various rock mass dynamic disasters in deep engineering, and can become a simulation test instrument and platform for studying the influencing factors, evolution mechanism, precursor response, prediction and early warning, and prevention and control technologies of various engineering rock mass dynamic disasters such as rock mass dynamics, rock burst, coal and gas outburst, and water inrush. The test system is adaptable to a variety of engineering rock mass models, multi-scale evolution process experiments, multi-information precise testing, coupling analysis, etc., and can become a basic test equipment for studying engineering rock mass dynamics, engineering rock mass dynamics behavior and mechanism, and can become a basic test equipment for breaking through the difficulties of experimental research and theoretical analysis of rock mass dynamics.

An integrated cold atom two-dimensional magneto-optical trap optical system includes a heavy pump cooling module, a push module and a reflection module. The heavy pump cooling module generates collimated and expanded heavy pump cooling light; the push module generates convergent push light; and the reflection module changes the polarization state of the heavy pump cooling light output from the two-dimensional magneto-optical trap cavity and returns it along the original path. At the same time, the V‑GROOVE fiber head is designed to realize the simultaneous input of 4-way light into one optical machine port. The entire system has good optical performance, and the structural design meets the characteristics of high stability, simplification and miniaturization. The present invention is applied to a space ultracold atomic physics experimental device, which can provide the required light field configuration for the two-dimensional magneto-optical trap of cold atoms and generate a high-throughput cold atom beam.