81results about How to "Has market application value" patented technology

The invention discloses a biological phosphatic fertilizer. The preparation method of the phosphatic fertilizer comprises the following steps: culturing AM mycorrhiza, phosphate solubilizing bacteria and rhizobium respectively, mixing with a phosphatic fertilizer to react, then adding various nutritional elements required for plants, and mixing and granulating to obtain porous fertilizer particles, so that the contact area between the fertilizer and water is increased, and the dissolving velocity of the fertilizer in water is accelerated. The biological phosphatic fertilizer can activate the phosphatic fertilizer, and can improve the absorption of the phosphatic fertilizer by plants, increase the utilization ratio of the phosphatic fertilizer, reduce the using quantity of the fertilizer and reduce the pollution to the environment; the fertilizer can be rapidly dissolved in water for irrigation and fertilization together with water, and is suitable for modern agricultural water and fertilization integration.

The invention discloses a mesoporous perovskite photovoltaic material and a preparation method thereof. The preparation method of the mesoporous perovskite photovoltaic material specifically comprises the following steps: (1) preparing metal halide nanometer microspheres; and (2) preparing a mesoporous perovskite photovoltaic material. The particle size of the metal halide nanometer microspheres can be adjusted through parameters such as reaction temperature. Therefore, by implementing the technical scheme in the embodiment of the invention, the aperture of the mesoporous perovskite material can be adjusted accurately. For a solar cell prepared by using the mesoporous perovskite material as the absorption layer of the perovskite solar cell, mesopores increase the contact area between the absorption layer and the hole transport layer of the solar cell, and therefore, the number of holes transported by the hole transport layer is increased when the solar cell is working, the electron-hole separation rate is increased, the electron-hole recombination rate is effectively reduced, and the photoelectric conversion efficiency is increased.

The invention discloses a perovskite-type solar cell and a preparation method. The perovskite-type solar cell sequentially consists of a transparent conductive substrate, a dense electron transmission layer, a composite light absorption layer and a metal electrode layer, wherein the composite light absorption layer is formed by a core shell structure where perovskite wraps P-type semiconductor quantum dots. Because the composite light absorption layer of the solar cell employs the core shell structure where perovskite wraps P-type semiconductor quantum dots and the perovskite fully contacts with the quantum dots, the contact area of the quantum dots with a perovskite structural layer is increased. Moreover, the advantage that the perovskite can be used as a hole transmission layer is employed, thereby improving the efficiency of light hole separation, and improving the photoelectric conversion efficiency of the cell.

The invention discloses a perovskite type solar energy battery with a quantum dot size performing gradient change and a preparation method. The perovskite type solar energy battery consists of a transparent conductive substrate, a compact electronic transmission layer, a composite light-absorption layer and a metal electrode layer; the composite light-absorption layer consists of n layers of perovskite-wrapping P type semiconductor quantum dot core shell structures, the sizes of which can perform V type gradient changing. Because the light-absorption layer of the perovskite type solar energy battery adopts multiple layers of perovskite-wrapping P type semiconductor quantum point core shell structures with the quantum sizes performing V type gradient change, the invention can realize the fact that the composite material presents gradient distribution of the forbidden bandwidth on the vertical gradient through designing the quantum dot size V type form distribution, and expands the spectrum scope of the absorption layer. Besides, the invention can improve the interface electric field on the photocathode interface, promotes the separation of the photo-induced carrier under the electric field and improves the conversion efficiency of the photoelectron.

The invention belongs to the field of fertilizers for crops and particularly relates to a special ecological fertilizer for maca as well as a preparation method thereof. The special ecological fertilizer is prepared by mixing decomposed manure, agricultural and forestry wastes, urea, a phosphate fertilizer, potassium humate, medium trace elements, an activating agent and a water retaining slow-release agent at a certain weight ratio. A compound fertilizer with charcoal serving as the substrate is prepared by carbonizing the agricultural and forestry wastes into charcoal and fully mixing the charcoal with the decomposed manure and the chemical fertilizers. The content of total nitrogen and available phosphate in soil can be increased due to the application of the compound fertilizer. The loss of nutrients in the compound fertilizer due to elution can be reduced, and the utilization rate of the compound fertilizer can be increased. The water retaining slow-release agent is added into the compound fertilizer to form the ecological fertilizer with water retaining and slow releasing capacities. The special ecological fertilizer for maca is reasonable in formula, contains multiple balanced nutrients, is improved in utilization rate significantly and can be used for greatly improving the yield and quality of maca. In addition, the special ecological fertilizer for maca can be used for improving the environment of soil, enhancing the fertilizer retaining and supplying capacity and buffering capacity of soil, reducing pests and diseases and increasing the economic benefit of maca due to long-term application.

The invention discloses a urine multi-index detection microfluidic device. The device includes the following parts: an inlet channel, which is located in the upstream of the device; two or more flow channels, which are communicated with the inlet channel and located in the downstream of the inlet channel; a reaction zone, which is located in the flow channel, and includes analysis test paper; a liquid collection chamber, which is in the downstream of the reaction zone and communicated with the downstream end of the flow channel. An upper passageway formed by the inlet channel, the flow channel, the reaction zone and the liquid collection chamber comprises a first passageway layer and a middle layer. A plurality of layers can operate to detect multiple indexes; and the processes of urine taking, reaction, detection and analysis can be completed in a short time, so as to greatly simplify the operation steps, save time and increase the efficiency. In addition, the invention also discloses a preparation method of the device. The method adopts a piece of three-dimensional drawing software to design a passageway model and combines with the three-dimensional printing passageway model, so as to prepare the device in a rapid and cost-saving way.

The invention discloses a hollow and echinoid nanometer material of copper oxide compounded with gold and a preparing method of the nanometer material. In a preparation process, copper chloride, sodium hydroxide, ascorbic acid and chloroauric acid which are friendly in environment and can be obtained conveniently and easily are utilized to be raw materials, and an aqueous-phase synthesis preparing method of the nanometer material with a multilevel structure of copper oxide compounded with gold is provided, wherein the preparing method is simple to operate, high in productivity, low in cost, green and environment-friendly. An obtained material is the nanometer material with the multilevel structure of the copper oxide compounded with gold, appearance is hollow and echinoid, and the size is uniform. The material prepared through the preparing method is applied to a gas sensor.

The invention discloses thermoplastic calcium carbonate toughening particles. The particles are characterized in that nano porous calcium carbonate is used as a main raw material; thermoplastic resin is networked in pores of the nano porous calcium carbonate and is tightly connected with outer resin of calcium carbonate particles to form a wrapping layer. In particular, the nano pores are through holes; the thermoplastic resin is uniformly and firmly fixed in the pores of the calcium carbonate particles and on the surfaces of the calcium carbonate particles; and the surface resin does not fall. Therefore, the dispersity and toughness of nano calcium carbonate in plastic are favorably improved, and the agglomeration of nano particles is hindered, so that the toughening effect of the nano calcium carbonate is exerted to the maximum extent.

The invention provides modified epsilon-polylysine and a preparation method thereof, and application of the modified epsilon-polylysine in turbot preservation, belonging to the field of food preservation. The invention particularly provides the preparation method and a structural formula of the modified epsilon-polylysine, and the application of the modified epsilon-polylysine in turbot preservation. The preparation method has the beneficial effects of simple process and easy experimental operation. The antibacterial activity and fresh-keeping performance of the modified epsilon-polylysine areobviously superior to the antibacterial activity and fresh-keeping performance of epsilon-polylysine; the antibacterial aging of the modified epsilon-polylysine is obviously superior to the antibacterial aging of epsilon-polylysine; and the modified epsilon-polylysine can effectively prolong the shelf life of turbots.

The invention discloses an intelligent control method for hot water of hotel. The method comprises the steps of storing water consumption information of a customer by means of cloud, and using the identity card number of a checking-in customer as a unique account number; in first checking-in the hotel by the customer, establishing the account number by means of a hotel foreground control system, and transmitting an account number initial setting standard recommending temperature to an intelligent constant-temperature device of a customer checking-in room; after water consumption, determining whether a water consumption temperature at this time is updated, if yes, transmitting data to the cloud for updating; and when the customer enters the hotel and uses an identity card for registering again, logging on the account number by means of the hotel foreground control system, simultaneously calling the water consumption information of the consumer from the cloud and transmitting the water consumption information to the intelligent constant-temperature device, and automatically setting a water outlet temperature by the intelligent constant-temperature device according to an embodiment temperature and the water consumption information of the customer, wherein the water consumption information is called from the cloud. When the customer checks in the hotel, temperature adjustment is not required in bathing, and most appropriate hot temperature can be used through opening a sprinkler. The invention further discloses an intelligent control system for hot water of the hotel.

The invention discloses a urine multi-index detection microfluidic device. The device includes the following parts: an inlet channel, which is located in the upstream of the device; two or more flow channels, which are communicated with the inlet channel and located in the downstream of the inlet channel; a reaction zone, which is located in the flow channel, and includes analysis test paper; a liquid collection chamber, which is in the downstream of the reaction zone and communicated with the downstream end of the flow channel. An upper passageway formed by the inlet channel, the flow channel, the reaction zone and the liquid collection chamber comprises a first passageway layer and a middle layer. A plurality of layers can operate to detect multiple indexes; and the processes of urine taking, reaction, detection and analysis can be completed in a short time, so as to greatly simplify the operation steps, save time and increase the efficiency. In addition, the invention also discloses a preparation method of the device. The method adopts a piece of three-dimensional drawing software to design a passageway model and combines with the three-dimensional printing passageway model, so as to prepare the device in a rapid and cost-saving way.