37results about How to "Uncontrollable solution" patented technology

The invention discloses a method for preparing a polycrystalline perovskite film and a solar cell device. In the method, a mixed aqueous solution of a polymer and a salt is wet-formed on a substrate, and then heat-treated after interacting with metal halide vapor to obtain Flat and dense polycrystalline perovskite films. The invention can prepare a dense and smooth polycrystalline perovskite film, has simple process, rapid crystallization, high stability and repetition rate, is harmless to the environment, has low dependence, and is low in cost.

The invention proposes a building facade assembly structure and a building facade forming process, including two elastic lining boards, one side of the elastic lining board is bonded with a bio-imitative material decorative surface layer, the elastic The inner lining boards are bonded to each other, and the decorative surface layer of the bionic material is set on the rope. The structure is equipped with PVC boards, which can be applied to the curved surface design of the building to ensure a smooth streamline; after the biological woven material layer is bonded to the PVC board through the PVC adhesive, the strength of the entire structure is enhanced, and it is not easy to use in high altitudes. Fracture, even if there is a partial break, it will be bonded to the PVC board through adhesives, and there will be no fluttering with the wind, which will increase the aesthetics of the building; before erecting the facade, the assembly structure of the preset surface can be adjusted Assembled in the workshop, you only need to install the assembled structure on the rope when you arrive at the site, which is highly efficient and reduces the time for manual work at heights.

The invention discloses a power supply method, a power supply device, an outer machine and an inner machine of a multi-split air conditioning system. The method comprises the following steps that thepower failure of the inner machine is detected; and a first control instruction is sent to an inner machine adjacent to the inner machine subjected to the power failure, so that the adjacent inner machine supplies power to the inner machine subjected to the power failure. According to the method, the device, the outer machine and the inner machine, the problem that the loss of a long-distance communication power supply line is too large due to the fact that the outer machine supplies the power to the inner machine during the power failure of the inner machine can be effectively solved; the problem that an electronic expansion valve cannot be controlled due to the power failure of the inner machine can be effectively solved; and meanwhile, the control cost for supplying the power to the inner machine can be effectively reduced.

The invention discloses a microfluidic sample concentration device based on photo-thermal evaporation as well as an application method. The microfluidic sample concentration device based on the photo-thermal evaporation comprises a sample solution channel and is characterized in that a porous photo-thermal evaporation layer is arranged above the sample solution channel, a carrier gas channel is arranged above the porous photo-thermal evaporation layer, and a light source is arranged outside the porous photo-thermal evaporation layer; the porous photo-thermal evaporation layer is composed of ahydrophilic porous photo-thermal medium layer and a hydrophobic gas diffusion layer; the hydrophilic porous photo-thermal medium layer produces a capillary suction force on liquid, so that sample solution enters the hydrophilic porous photo-thermal medium layer, meanwhile, the hydrophilic porous photo-thermal medium layer absorbs incident light of the light source and produces photothermal effect,so that the sample solution absorbs heat and is evaporated to produce gas, and then evaporation and concentration on the sample solution are realized; and the hydrophobic gas diffusion layer is of ahydrophobic structure and is located at the upper part of the hydrophilic porous photo-thermal medium layer. The microfluidic sample concentration device disclosed by the invention can be widely applied to the fields of crystal purification, drug synthesis and food engineering.

The invention discloses a management system for regional autonomy of a content distribution network server. The management efficiency of a large server cluster is improved, and the maintenance difficulty of a large server cluster is reduced. The technical scheme is that the management system comprises a central dispatch server and a plurality of regional autonomy clusters, wherein each regional autonomy cluster consists of a plurality of edge servers. The central dispatch server receives external input data to divide, dispatch and manage the regional autonomy clusters for the edge servers. The central dispatch server on the one hand receives network heartbeat return and deploying result feedback of all edge servers, and on the other hand distributes representative servers which are assigned to configure for each regional autonomy cluster.

A process based on the constant-force mode of atomic force microscope for preparing nano-class microstructure with controllable depth and large range of precise sizes features that 2D micro-motion bench and its control circuit is additionally used. The extension of scanning ceramic tube is driven by AFM driver circuit to make the probe tip to prick into the surface of a workpiece to be processed.The variation amount of scanning ceramic tube is detected by the real-time detection circuit and transmitted to single-chip computer. Said scanning ceramic tube is extended continuously in the relative direction until the processed depth setting is equal to the difference between the motion amount of said scanning ceramic tube in height direction and said deformation amount of cantilever.

The invention relates to a three-dimensional nanometer pitch sample plate and a preparation method thereof, and belongs to the technical field of nanometer metering. The three-dimensional nanometer pitch sample plate is characterized in that Si (100) single-crystal structure substrate materials and high-purity film forming Cr materials (with the purity larger than 99%) are selected, a molecular beam epitaxy technology is adopted for achieving stratified structure growth of Cr atoms on a Si (100) substrate, a corresponding nanometer pitch structure is obtained through an etching technology, then, epitaxial growth is carried out again, and research of the pitch sample plate is achieved. The problems that an existing nanometer pitch sample plate preparation method is not easy to control, and the preparation method is poor in reproducibility are solved at the atomic level. In addition, due to the fact that the film forming atoms grow in a stratified structure mode, the etched surface interface structure can be preserved, the etched structure depth can also be kept, the influences of etching on the lateral pitch structure are eliminated, the problem that the Z-direction etching is uncontrollable is solved, nanoscale control of the research process over the sample plate three-dimensional pitch is achieved, and a feasible research method is provided for nanometer pitch standard sample plates in China.

The invention belongs to the technical field of titanium nitride preparation, and particularly relates to a method for preparing a titanium nitride block with controllable composition. The method comprises the following steps of (1) preparing pure titanium powder and titanium nitride powder according to titanium nitride compositions; (2) uniformly mixing the two powders according to a certain proportion, and pressing the powders into blocks through a cold pressing process; and (3) placing the block obtained in the previous step in a vacuum non-consumable smelting furnace, controlling smeltingcurrent to melt the block, cooling and solidifying to obtain a titanium nitride block. The titanium nitride produced by the method is uniform in component, and the nitrogen content in the titanium nitride can be accurately controlled.

The invention discloses a method for automatically adjusting an aircraft under the condition of losing contact, comprising the following steps: when determining that interaction information fed back by a ground end is not received within a preset time, calculating out a controllable point nearest to the current location of an aircraft and a route to the controllable point; and making the aircraft fly to the nearest controllable point according to the route, wherein the controllable point is a place of which the TD-LTE signal strength is greater than a preset threshold. The invention further discloses a device for implementing the method and an aircraft.