12results about How to "Achieve long-term stability" patented technology

The invention provides a preparation method and application of a novel rare earth doped ferronickel-based alkaline electrolytic water anode catalyst, a substrate of the electrolytic water catalyst is foam iron, and the electrolytic water catalyst does not contain noble metal elements. The electrolyzed water catalyst not only avoids the use of noble metal, but also reduces the use of foamed nickel (the market price of nickel is much higher than that of iron), and has a great advantage in cost.

The application discloses an asymmetric double electric layer rubbing ion electron sensor and a preparation method thereof, and relates to the technical field of rubbing ion electron and self-powered sensing. The sensor comprises an ionic hydrogel layer, a first electrode and a second electrode; a spacing layer is arranged between the ionic hydrogel layer and the second electrode; wherein the first electrode and the second electrode are made of different materials, and the first electrode and the second electrode have different affinities to ions.

The invention discloses a microbial carrier implantable soil microstructure improvement device and method, the device takes microbial carrier precise implantation as a core, integrates multiple functions of targeted layered implantation, carrier-soil microstructure synchronous reconstruction, microcapsule in-situ activation and the like, and can improve the soil microstructure through an intelligent regulation and control system and modular design. And efficient improvement of the soil microstructure in different soil layers and different scenes is realized. The device comprises a power module, a control module and a switchable function module, innovatively adopts a targeted layered injection mechanism, a carrier-soil mixing and shaping assembly and an environmental response type microcapsule spray-seeding activation module, and is matched with a degradable carrier material modification assembly and a new energy driving system. The problems that a traditional device carrier is low in implanting precision, not tightly combined with soil, single in application scene and the like are solved.

The invention provides a zirconium-based solid electrolyte and a preparation method and application thereof, the chemical composition of the inorganic zirconium-based solid electrolyte material is Lix + yZrCl4 + x (OH) y, x is more than or equal to 0 and less than or equal to 2, and y is more than 0 and less than or equal to 2. The hydroxyl group is introduced to induce the material to generate lattice distortion and form a two-phase mixed region, and the rotation characteristic of the hydroxyl group is utilized to reduce the steric hindrance of lithium ion transmission, so that the ionic conductivity is remarkably improved. Besides, the introduction of the hydroxyl group induces in-situ generation of a self-limiting stable interface layer rich in Cl when the electrolyte is in contact with a lithium negative electrode, so that side reaction is effectively inhibited, and direct stable matching of the zirconium-based solid electrolyte and the lithium negative electrode is realized.

This invention discloses a self-weight backfilling submarine cable protection device, comprising: an upper cover shell, a lower trough, a fixing base, and guide wings; the upper cover shell and the lower trough are detachably connected; the fixing base is disposed at both ends of the lower trough for limiting the submarine cable; the guide wings are symmetrically disposed on both sides of the lower trough and integrally formed with the lower trough; a backfilling trough is provided inside the lower trough, and the backfilling trough is placed between the fixing bases; this invention reduces the construction difficulty of the protection device and improves the convenience of underwater installation while ensuring structural stability; it optimizes and weakens the scouring effect of ocean currents on the seabed and the sediment around the cable; it achieves long-term stability of the backfilled sediment, preventing secondary scouring that could lead to cable exposure; and it meets strength requirements while improving the device's corrosion resistance and service life in the marine environment.

This invention discloses a space-ground coordinated radiometric characteristic calibration method for spaceborne active microwave sensors in the field of radar Earth observation technology. It constructs a space-ground coordinated calibration system consisting of a radiation reference source satellite and a ground calibration processing station. The method includes: determining the orbital parameters of the radiation reference source satellite; the satellite transmitting signals to the ground station in Earth observation mode, using a known RCS target on the ground to calibrate its own antenna gain and link gain; receiving signals from the satellite to be calibrated in Earth observation mode, accurately calculating and transmitting echo signals based on the calibrated parameters; and the satellite to be calibrated calibrating its own transmit / receive link gain based on the received echo signals. This invention can be widely applied to the on-orbit radiometric calibration of active microwave sensors such as synthetic aperture radar, altimeters, and microwave scatterometers, significantly improving calibration frequency and accuracy, supporting multi-band, high-stability quantitative remote sensing tasks, and providing reliable technical support for precise observation in fields such as ocean monitoring, weather forecasting, and topographic mapping.

The application discloses an output self-correction circuit for a medical electron gun grid power supply, comprising a low-voltage side control unit, an isolation transmission unit, a high-voltage side control unit, a grid power supply and an independent sampling network; the low-voltage side control unit receives a dose rate, an ambient temperature, an external sampling signal and an output voltage feedback signal, generates a corrected reference signal and transmits the corrected reference signal to the high-voltage side control unit through the isolation transmission unit; the high-voltage side control unit outputs a control increment to the grid power supply after F / V conversion of the corrected reference signal, simultaneously receives voltage feedback signals of the grid power supply and the independent sampling network, and transmits the voltage feedback signals to the low-voltage side control unit through the isolation transmission unit; the application provides the grid power supply with output self-correction for a medical electron linear accelerator, realizes long-term stability and parameter consistency of an electron gun emission beam current, does not need manual correction, and greatly improves work efficiency.

The invention relates to the technical field of high polymer materials, and discloses a polyester release master batch as well as a preparation method and application thereof. According to the release master batch, polyester resin is used as a matrix, specific modified organic silicon resin is introduced, and the organic silicon resin is prepared from polydimethylsiloxane containing silicon-hydrogen bonds, multiple hydrogen bond unit monomers containing unsaturated double bonds and fluorine-containing chain segment monomers through a hydrogen-silicon addition reaction. Multiple hydrogen bond groups and fluorine-containing alkyl chain segments are introduced to the same molecular chain at the same time, so that the resin is endowed with temperature responsiveness, excellent dispersity in a polyester matrix and ultralow surface energy after film formation. The polyester release master batch is prepared by adopting a melt blending extrusion process, and then the polyester release master batch and the polyester resin are blended and stretched to prepare the release film, so that the release film has stable and adjustable release force and excellent fingerprint resistance and pollution resistance, keeps good transparency and dimensional stability, and is suitable for the fields of electronic packaging, optical protection films, die cutting materials and the like.

The application discloses long-acting stable silica for a two-component epoxy system and a preparation method thereof. Firstly, a silicon hydrogen group is introduced to the surface of fumed silica by treating the surface of the fumed silica with triethoxysilane; then, the silicon hydrogen group is subjected to a hydrosilylation addition reaction with vinyl-terminated polydimethylsiloxane (PDMS) to form a PDMS flexible steric hindrance layer; finally, the PDMS flexible steric hindrance layer is subjected to a hydrosilylation addition reaction with hexadecyldimethylhydrosilane to introduce a hexadecyl long chain as an anchoring arm. The long-acting stable silica obtained by the application exhibits excellent hydrophobicity and long-term compatibility in the two-component epoxy system, effectively solves the technical problems of viscosity reduction and sedimentation of the existing epoxy system, and has a wide application prospect in the fields of adhesives, coatings, electronic packaging and the like.

The utility model discloses a multifunctional plant bag for slope ecological restoration, which relates to the technical field of slope ecological restoration and comprises a planting bag, a pressing frame and a plurality of fixing anchor rods. Fixing holes I are formed in the four corners of the planting bag respectively, the pressing frame is used for fixing and pressing the planting belt, fixing holes II matched with the fixing holes I are formed in the four corners of the pressing frame respectively, and the fixing anchor rods sequentially penetrate through the fixing holes I and the fixing holes II and are inserted into slope soil. Friction force between the planting bag and soil is increased through the pressing frame, sliding and displacement are effectively prevented, stable support is provided for plant growth, meanwhile, anchor plates are stably inserted into the soil in the multiple groups of spirally-distributed anchor insertion assemblies in the fixing anchor rod, the fixing effect is enhanced, excellent pulling resistance and road holding force are provided, and the planting bag can be used for planting plants. The planting bag can be firmly and stably kept at the required position, and the long-term effect of slope ecological restoration is achieved.

The invention discloses dried orange peel juice wine and a preparation method thereof, and belongs to the technical field of wine brewing. The dried orange peel juice wine is prepared from a rice fermentation distilled wine base, a dried orange peel directional leaching solution, a mint extracting solution and a food-grade flavoring agent according to a specific mass percent. The preparation method comprises the following steps: in a rice wine base fermentation stage, adding crushed dried orange peel for co-fermentation, distilling to obtain base wine, and storing and aging in a jar; extracting the dried orange peel at low temperature by using base liquor with specific alcoholic strength to prepare flavor extract liquid; and finally, homogenizing and blending the aged base liquor, the leaching liquor and other components. According to the invention, through an integrated process combining fermentation synergy and directional extraction, deep fusion of flavor and nutritional active ingredients of the dried orange peel and the wine body is realized, the problems of floating flavor and inharmonious taste in a traditional process are effectively solved, and the finished wine is mellow in flavor, rich in level, stable in quality and suitable for large-scale production.

The embodiment of the invention provides an NV color center partial discharge quantum measurement device packaging method, and the method comprises the steps: designing a multi-core optical fiber, enabling the end face of the multi-core optical fiber to be disposed in a housing structure, and enabling the multi-core optical fiber to comprise a central core and a plurality of peripheral cores; manufacturing a support frame for supporting and fixing the diamond sample and the multi-core optical fiber; the supporting frame is arranged on one side of the end face of the multi-core optical fiber and is in tight butt joint with the end face of the multi-core optical fiber, and the multi-core optical fiber is fixed; the diamond sample containing the NV color center is fixed in the supporting frame; butting the diamond sample with the end surface of the multi-core optical fiber, and optically aligning the multi-core optical fiber with the diamond sample; filling the butt joint area of the end face of the multi-core optical fiber and the diamond sample with epoxy resin to form a packaging layer; and curing the epoxy resin to obtain the packaged optical fiber probe. According to the technical scheme provided by the invention, high sensitivity, high stability and miniaturized packaging of the NV color center sensor are realized.