13results about How to "Reduce holes" patented technology

The application discloses a polytetrafluoroethylene glass fiber building film material, which comprises a glass fiber cloth, pretreatment protective layers arranged on two sides of the glass fiber cloth, a dense layer and a polyperfluoroethylene propylene resin outer layer arranged in sequence, and a non-porous film is formed through the polyperfluoroethylene propylene resin outer layer, and the holes formed by the dense layer are filled, so that the dense layer is complete. The problems of low tensile strength, poor folding resistance and surface cracking of the existing glass fiber building film material are solved.

The application relates to a building three-dimensional reconstruction method based on multi-coplanar geometry and a graph neural network, which comprises the following steps: pre-processing aerial images and ground images and obtaining an initial point matching set; iteratively extracting multiple groups of local homography matrices between the image pairs; scaling the aerial images and the ground images and constructing a multi-scale pyramid representation; performing matching by using a deep matching network; after the matching results are converged, the inverse transformation of the homography matrix is used to project back to the original image coordinate system to form a candidate cross-platform corresponding point line set; and verified cross-platform control point set is used to replace the matching input of the reconstruction process to output a final building three-dimensional model. The application can obtain sufficient, uniform and geometrically consistent cross-platform control points in cross-platform image pairs with large angle differences, scale changes and local occlusions, thereby replacing or reinforcing the matching input of traditional three-dimensional reconstruction, and realizing high-precision, high-completeness three-dimensional reconstruction and detail recovery of a city building scene.

The present disclosure provides a light-emitting diode with improved peeling and tearing and a preparation method thereof, and belongs to the technical field of optoelectronic manufacturing. The light-emitting diode comprises an epitaxial layer, a functional stack layer, an electrode and a filling layer. The functional stack layer is located on the epitaxial layer, and the electrode is located on the functional stack layer and electrically connected with the epitaxial layer. The surface of the functional stack layer away from the epitaxial layer comprises a stepped surface, and the filling layer is located on the stepped surface. The embodiment of the present disclosure can improve the problem that the bonding metal is easily torn and damaged during laser peeling, and improve the reliability of the light-emitting diode.

This disclosure relates to the photovoltaic field, providing a photovoltaic cell and its manufacturing method, a tandem cell, and a photovoltaic module. The manufacturing method of the photovoltaic cell includes: providing a cell substrate having two surface sides opposite each other along a first direction; printing a first paste on at least one surface side, the first paste including at least first conductive particles and second conductive particles, both the first and second conductive particles containing silver, and the silver content of the first conductive particles being lower than that of the second conductive particles; modifying the first paste to transform it into a transport layer, the modification treatment including a first stage and a second stage, wherein the energy density provided to the first paste in the first stage is lower than the energy density provided to the first paste in the second stage. This disclosure at least helps to improve the conductivity of the formed transport layer while simplifying the preparation process of the transport layer.

This invention discloses a shower head, comprising: a body having a water inlet channel; a first water distribution chamber, the first water distribution chamber having a first movable shaft, a first water outlet, a second water outlet, and a first water inlet connected to the water inlet channel, the first movable shaft being used to open and close the first water outlet and the second water outlet; a second water distribution chamber, the second water distribution chamber having a second movable shaft, a third water outlet, a fourth water outlet, and a second water inlet connected to the second water outlet, the second movable shaft being used to open and close the third water outlet and the fourth water outlet; a first water outlet channel that can be connected to the first water outlet, a second water outlet channel that can be connected to the third water outlet, and a third water outlet channel that can be connected to the fourth water outlet; a first water outlet hole that can be connected to the first water outlet channel and the second water outlet channel, the second water outlet channel being coaxially arranged with the first water outlet hole; capable of realizing a powerful single-pour water injection plus sheet water output at the same hole position, convenient for user use.

A partitioned turbine blade with an oscillating jet cooling structure and its operating method are disclosed, belonging to the fields of energy and power engineering and turbine blade cooling. The blade includes a blade shell, a jet oscillator, a cooling airflow delivery chamber, internal impact holes, external film cooling holes, and turbulence columns. In this invention, the cooling airflow impacts and cools the inner wall of the blade through the impact holes. Utilizing the characteristic of the jet oscillator to generate a large-area high-frequency sweep without moving parts, a single row of jet oscillators is used on the suction side and leading edge of the blade. Considering that the cooling demand on the pressure side is greater than that on the suction side, the pressure side fluid oscillators are arranged in two staggered rows to generate a large-area, full cooling film on the blade surface for blade cooling.

The invention discloses a garnet type composite oxide solid-state electrolyte, a solid-state battery and a preparation method of the garnet type composite oxide solid-state electrolyte, the chemical general formula of the electrolyte is Li < 7 > La < 3-x > Zr < 2-y > M < z > O < 12 > awt% Al < 2 > O < 3 >, 0 < = x < = 3, 0 < = y < = 0.5, z = x + y, and 1.5 < = a < = 22. Through specific multi-element doping and component regulation, the ionic conductivity of the prepared solid electrolyte is improved to 1.95 * 10 <-2.74 > * 10 < S > / cm and is far higher than that of a traditional LLZO-based electrolyte on the premise that the pure LLZO crystal phase structure is kept stable and the ceramic density is kept at the excellent level of 85.4%-98.6%; and meanwhile, the ion transmission impedance of the electrolyte is reduced to 48.5-97.3 omega.cm, and the ionic conduction dynamic characteristic is remarkably improved. The technical problems that a traditional LLZO-based electrolyte is low in ionic conductivity and an impure phase is easy to generate are solved, and the prepared solid electrolyte has structural stability and excellent ionic conduction performance and has important application value in the field of solid lithium ion batteries.

This invention discloses a thin-film solar cell with synergistic passivation and field-effect modulation functions, and its fabrication method, belonging to the field of solar cell technology. The core of this invention lies in introducing an ultrathin barium titanate (BaTiO3) interlayer between the back electrode and the CZTSSe absorber layer. This interlayer not only passively blocks electron backflow and suppresses interfacial recombination by utilizing its large conduction band offset with CZTSSe, but more importantly, it can induce BaTiO3 absorption during high-temperature selenization. 2+ Cu in CZTSSe + Non-equivalent cation migration and exchange occur, thereby actively constructing a directionally favorable cation migration and exchange-induced built-in electric field (CME-field) within the quasi-neutral region of the absorber layer, synergistically promoting the collection of photogenerated holes. This invention achieves a synergistic effect of "passive blocking" and "active driving," significantly improving battery performance and increasing the photoelectric conversion efficiency of battery devices to 14.00%.

This utility model provides a rubber cap, bottle, and product, including a cap body and a cut on the cap body. The cut is a dotted line cut, with one cut length A, and the uncut gap length B between two cuts. The ratio of adjacent cuts to gaps, A:B, ranges from 1:1 to 1:4. This utility model's cap cut ensures that the cap will not easily burst open when shrinking, greatly improving production efficiency and preventing large-scale waste caused by the cap bursting during shrinkage. It also makes the holes created by the shrinkage of the cut more uniform and smaller, making the difference in hole diameter difficult to discern with the human eye, thus enhancing the aesthetics of the cap.

The utility model relates to textile machinery technical field discloses a kind of knitted fabric density's knitted fabric machine head structure, including needle body and positioning box, the top of needle body is fixedly connected with the locking assembly for being locked with external structure, the top of locking assembly is fixedly connected with sharp needle, the inside of positioning box is slidably connected with sliding box, the inside of sliding box is equipped with two card mouth, the inner wall of sharp needle is slidably connected in the positioning box, the inner wall of card mouth is movably connected with movable ball, the inner wall of sliding box is fixedly connected with magnetic disc, in the utility model, external connecting rod drives sharp needle to change position, so that two movable balls are clamped into the inner wall of two buckles, when needle head knits, its top is using magnetic attraction locking detachable connection structure, the quick installation and replacement of needle head are facilitated, production efficiency is improved, and connection is stable.

This invention relates to a method for fabricating a light-emitting element based on an ultra-smooth interface composite functional transparent conductive layer, comprising the following steps: (1) providing a substrate and performing epitaxial growth; (2) growing a composite functional layer with a thickness of 5-10 nm on the surface of the epitaxial structure; (3) polishing the composite functional layer to ensure that the surface roughness Ra < 0.2 nm; (4) defining the photonic crystal pattern and etching photonic crystal pre-holes in the composite functional layer; (5) depositing the composite transparent conductive layer: firstly, using an atomic layer deposition system (ALD), filling the photonic crystal pre-holes with an ITO material of an indium-tin weight ratio of 90:10, and then growing a second ITO layer with a thickness of 30 nm and an indium-tin weight ratio of 95:5 as a current diffusion layer by sputtering or ion beam deposition, and finally performing high-temperature thermal annealing; this invention optimizes the light extraction efficiency and current diffusion performance of the device by combining fundamental planarization of the substrate interface with the precise fabrication of nanophotonic structures.

The application relates to the technical field of ceramic preparation, and provides a preparation method of high-thermal-conductivity aluminum nitride ceramic, which solves the problems of relatively poor thermal conductive performance and bending strength of the aluminum nitride ceramic prepared by the prior art; the method comprises the following preparation steps: 1) raw material preparation; 2) ball milling mixing; 3) preheating reduction; and 4) hot-pressing sintering.

The application discloses a kind of super-hydrophobic unit cell powder, which is composed of particles in unit cell structure; each unit cell particle has a shell of super-hydrophobic round diatomite, and the round diatomite has a hollow porous structure; the hollow cavity of the diatomite is filled with super-hydrophobic inorganic nanoparticles and corrosion inhibitor filled in the gap between the inorganic nanoparticles, and a membrane for sealing the pores of the diatomite shell is also provided. The application also discloses a preparation method of the super-hydrophobic unit cell powder and its application in preparing a composite anticorrosive coating. During the formation of the coating, the unit cell particles are connected to the resin through chemical cross-linking by the hydroxyl groups on the surface of the unit cell particles, and the unit cell particles are connected to the resin through chemical bonding, which can significantly improve the compatibility and bonding force of the unit cell particles and the resin. By increasing the spraying pressure during spraying, the vertical density of the coating is improved, and the coating has good mechanical strength and long-term corrosion resistance due to the synergistic effect of multiple factors.