36results about How to "Mature and stable" patented technology

The invention relates to a thin film crystalline silicon perovskite heterojunction solar battery and a preparation method thereof, and relates to a semiconductor device for converting luminous energy into electric energy. The thin film crystalline silicon perovskite heterojunction solar battery includes a transparent conductive substrate, a P-type thin film crystalline silicon hole transport layer, a perovskite light absorption layer, an electron transport layer formed by compact titanium dioxide, and a back electrode, wherein the perovskite light absorption layer and the P-type thin film crystalline silicon hole transport layer have matched energy levels. The configuration pattern: the P-type thin film crystalline silicon hole transport layer is arranged on the transparent conductive substrate; the perovskite light absorption layer is arranged on the P-type thin film crystalline silicon hole transport layer; the perovskite light absorption layer and the P-type thin film crystalline silicon hole transport layer form a thin film crystalline silicon perovskite heterojunction; the electron transport layer formed by the compact titanium dioxide is arranged on the perovskite light absorption layer; the back electrode is arranged on the electron transport layer formed by the compact titanium dioxide. According to the invention, the defects that the existing perovskite solar battery is low in stability and high in preparation cost, and a mass of silicon materials are used can be overcame.

The invention discloses a method for preparing a lithium ion battery active cathode material doped with composite carbon, comprising the steps of: according to a patent number of 200710069679.X, preparing carbon powder M, doping spheroidized natural graphite, proportioning in a weight ratio of (65-75):(25-35), mixing and stirring, doping 15-30% of asphalt, carrying out high-pressure (an atmospheric pressure of 12-25kPa) soaking and baking for 7-9 hours, permeating, cladding and molding, carrying out high temperature graphitization at 2000-3200 DEG C for 7-15 days, and cooling and discharging to obtain composite graphite particles which are active cathode materials formed by combining synthetic graphite and natural graphite through an adhesive. The preparation method provided by the invention is simple in process, mature and stable, and resources are abundant; the lithium ion battery active cathode material prepared by utilizing the method has the characteristics of high specific capacity, high compacted density and low thickness rebound and is applicable to cylinders, soft packages, aluminum shells and high rate power batteries.

The invention relates to the technical field of marking machines, in particular to a name board marking machine. The name board marking machine comprises a control device, a working table (1), a support (2), a material storage and sending device (3), a containing table (4) used for receiving name boards conveyed from the material storage and sending device, a positioning device (5) used for positioning the containing table (4), a detection device (6) used for detecting whether name boards are placed on the containing table or not, whether the size of name boards is accurate or not and whether name board marking is accurate or not, a laser marking device (7) used for marking name boards, a dust removal device (8) used for absorbing sweeps generated in the marking process, and a material collection and storage device (9) used for collecting marked name boards. The name board marking machine is high in production efficiency and low in rejection rate.

The invention discloses a time-synchronization type two-dimensional code access control method and system. The time-synchronization type two-dimensional code access control method comprises the following steps that access control equipment generates a two-dimensional code of a dynamic password; a user uses mobile equipment to carry out code scanning, analysis and signing on the two-dimensional code, and sending to a server; the sever finishes authentication of access control and person identity by a time synchronization technology and a signing technology. The time-synchronization type two-dimensional code access control method and system disclosed by the invention have the advantages that the deployment is simple, the cost is low, the safety is high, the expansibility is good, the personapplication range is wide, the behavior of persons in swiping the access control can be ensured to be authentic and credible, and high-level safety management for persons can be achieved.

The invention relates to a thin-film crystalline silicon perovskite heterojunction solar cell and a preparation method thereof, which relate to a semiconductor device specially suitable for converting light energy into electrical energy, which consists of a transparent conductive substrate, a P-type thin-film crystalline silicon hole transport layer, and a perovskite The light absorbing layer, the electron transport layer made of dense titanium dioxide and the back electrode are composed of the perovskite light absorbing layer and the P-type thin film crystalline silicon hole transport layer with matching energy levels; the composition method is: P-type thin film crystal The silicon hole transport layer is placed on the transparent conductive substrate, the perovskite light absorbing layer is placed on the top of the P-type thin film crystalline silicon hole transport layer, and the perovskite light absorbing layer and the P-type thin film crystalline silicon hole transport layer form a thin film In the crystalline silicon perovskite heterojunction, the electron transport layer composed of dense titanium dioxide is placed on the perovskite light absorbing layer, and the back electrode is placed on the electron transport layer composed of dense titanium dioxide. It overcomes the shortcomings of the existing perovskite solar cells, such as insufficient stability, high manufacturing cost or large amount of silicon materials used.

The invention discloses a variable flow hot gas defrosting mechanism of a small-sized refrigerating system. The variable flow hot gas defrosting mechanism of the small-sized refrigerating system comprises a compressor; three or more parallel one-way electromagnetic valves are connected to an outlet of the compressor through gas pipes; one ends of the three or more parallel one-way electromagneticvalves are respectively connected with an evaporator; without a throttling device, heat of a medium is directly transmitted to snow and frost on the surface of the evaporator so that the snow and frost are melted; the medium finishing heat exchanging returns to the compressor via a gas return pipeline; and this cycle is repeated (like solid lines in a drawing, not the dotted line part). Accordingto the variable flow hot gas defrosting mechanism of the small-sized refrigerating system, by using the one-way electromagnetic valve combination, the circulating hot gas defrosting efficiency is high; and moreover, the flow can be adjusted according to defrosting gas return pressure change; and meanwhile, electromagnetic valve control and structure are simple, mature and stable.

The invention relates to a Micro-LED display screen structure and a production method and relates to the technical field of displayers. The Micro-LED display screen structure comprises a display arraywhich is arranged on the front of a display screen and composed of Micro-LED chips, wherein the Micro-LED chips in each row and the Micro-LED chips in each column of the display array are connected through metal wires respectively, an insulation layer is arranged between the surface of the display array and the metal wire in each row, and an insulation layer is arranged between the surface of thedisplay array and the metal wire in each column; a driving chip, a metal bonding pad and a plurality of back metal wires are arranged on the back of the display screen, wherein one end of each back metal wire is connected with the driving chip, and all the back metal wires are functionally in one-to-one correspondence with the front metal wires; and the front metal wires of the display screen andthe back metal wires in one-to-one correspondence with the front metal wires are connected through holes and form channels. Through the Micro-LED display screen structure and the production method, problems concerning transfer and bonding in the design and production process of the Micro-LED display screen are effectively overcome.

The invention relates to an integrated treatment process for green hospital sewage, which belongs to the technical field of sewage treatment. In order to solve the problem of incomplete removal of pathogenic microorganisms and organic matter in existing hospital sewage treatment methods, the present invention provides a green integrated treatment process for hospital sewage. , ultra-magnetic separation system and mud-water separation system; both septic tanks and biological tanks are added with ABS microbial agents, and the pollutants such as COD, BOD, SS, E. coli and TN are degraded in turn; The treated sewage enters the ultra-magnetic separation system to remove insoluble pollutants. The invention effectively combines the ABS microbial agent treatment method with the supermagnetic separation water treatment method, which solves the environmental protection problem that hospital sewage treatment is not up to standard, does not need to use chemical agents for disinfection, saves sewage treatment costs, has no secondary pollution, and discharges up to the standard. Reclaimed water can be recycled.

The invention relates to the technical field of marking machines, in particular to a name board marking machine. The name board marking machine comprises a control device, a working table (1), a support (2), a material storage and sending device (3), a containing table (4) used for receiving name boards conveyed from the material storage and sending device, a positioning device (5) used for positioning the containing table (4), a detection device (6) used for detecting whether name boards are placed on the containing table or not, whether the size of name boards is accurate or not and whether name board marking is accurate or not, a laser marking device (7) used for marking name boards, a dust removal device (8) used for absorbing sweeps generated in the marking process, and a material collection and storage device (9) used for collecting marked name boards. The name board marking machine is high in production efficiency and low in rejection rate.

The invention relates to the field of high-temperature functional ceramic coating materials, in particular to a thick thermal barrier coating with a long thermal cycle life. The thick thermal barrier coating sequentially comprises a metal bonding layer and a ceramic layer from bottom to top on the surface of a substrate, the ceramic layer is a nano lanthanum phosphate-8YSZ composite coating, and the mass fraction of lanthanum phosphate in the ceramic layer is 1-10%. According to the thick thermal barrier coating with the high thermal cycle life, the 8YSZ thermal barrier coating is modified by adding nano lanthanum phosphate, and the content of lanthanum phosphate is regulated and controlled, so that the fracture toughness and strain tolerance of the coating are effectively improved, the thermal shock resistance of the coating is effectively improved, the thermal cycle life of the coating is effectively prolonged, and controllable preparation of the thick thermal barrier coating is achieved.

The invention discloses a marketing control method for table purpose lambs. The method comprises the steps that daily feed consumption RHL of a table purpose lamb for sale is firstly determined, the price LJ of currently-fed feed, the price of the table purpose live lamb in current the market and the raising number of days D of the current table purpose lamb are surveyed, the current number N of table purpose lamb for marketing is calculated, the value of y is calculated according to a calculation formula, and the table purpose lamb is judged to be sold or not. According to the marketing control method for table purpose lambs, a lamb farmer can determine and calculate whether the limbs are suitable for marketing or not easily according to the growth and development curve, feed conversion rate and economical benefit and by taking the market price of live limbs, the feed cost, the number of limbs raised and raising number of days as parameters, and the operation is convenient.

The invention discloses the application of PEDF and its derivatives in the preparation of drugs for reconstructing coronary artery reserve collateral microcirculation and the drug screening method, including the application of PEDF in the preparation of drugs for reconstructing coronary artery reserve collateral microcirculation ; The application of PEDF-derived polypeptides in the preparation of drugs for reconstructing coronary reserve collateral microcirculation; the PEDF-derived polypeptides include 44-77aa polypeptide fragments of PEDF; the present invention also includes drugs for reconstructing coronary artery reserve collateral microcirculation screening method. The medicine for reconstructing the reserve coronary artery collateral microcirculation can improve the perfusion function, prolong the effective perfusion time, promote the stable connection of vascular endothelial cells in the reserve coronary artery collateral microcirculation, and prevent the reserve coronary artery collateral microcirculation. Circulatory vascular leakage, reducing paravascular interstitial edema of the coronary artery reserve collateral microcirculation, and improving heart function.

The invention discloses a target regulation system, kit and application for somatic cell dedifferentiation. The target regulation system regulates somatic cells as follows: inhibiting PKC activity, and inhibiting DNMT activity and / or inhibiting HMT activity and / or inhibiting histone demethylase activity; the key targets for corresponding regulation include PKC, and DNMT and / or HMT and / or histone demethylase; the somatic cells are differentiated cells. The target regulation system provided by the present invention can promote the efficiency of small molecules inducing the transdifferentiation of somatic cells into different types of functional target cells, and has clear targets, clear components, mature and stable, easy quality control and large-scale production.

The invention relates to the field of high-temperature functional ceramic coating materials, and specifically discloses a heat-insulating / infrared stealth composite coating with adjustable thickness. The composite coating is a multi-layer superimposed structure, which sequentially includes a metal bonding layer, A ceramic layer and an infrared low emissivity layer, the ceramic layer is a lanthanum phosphate-hexaaluminate composite ceramic layer, and the infrared low emissivity layer is made of Bi 2 o 3 ‑Al 2 o 3 ‑TiO 2 -Li 2 O-SiO 2 It is a low emissivity coating composed of low melting point glass as the binder phase and silver as the conductive phase. The invention also provides a titanium alloy material coated with a coating on the surface and a preparation method thereof. The heat insulation / infrared stealth composite coating in the present invention has excellent thermal shock resistance and high temperature infrared low emissivity characteristics; its thickness can be adjusted according to different practical application requirements, and the surface density and heat insulation performance of the coating can be adjusted adjust.

The invention discloses individual soldier portable test equipment, which comprises a box body, a front panel, a rear panel and a box cover, wherein a function test module is fixed in the box body, amounting port is formed in the side wall of one end of the box body and used for mounting a universal test interface, a mounting hole is formed in the side wall of the other end of the box body and used for mounting an input connector and a grounding connector, a cover plate I and a cover plate II are correspondingly mounted at the mounting opening and the mounting hole respectively; and the frontpanel and the rear panel are respectively fixed on the box body through screws, a main control computer is fixedly connected with the front panel through a pressing plate, a box cover used for protecting the main control computer is arranged on one side, close to the front panel, of the box body, a lithium battery box used for installing a lithium battery is arranged on the rear panel, and a battery cover plate is arranged outside the lithium battery box. The portable test equipment further comprises a USB bus system which is of a cage frame structure and comprises a cage frame, a function board card and a back board, wherein the function board card is inserted into the cage frame through a guide groove in the cage frame and connected with the inner wall of the back board through a plug-in connector.

The invention discloses a method for calculating marketing time of commodity broiler chicken. The method comprises the following steps of: measuring the current daily feed consumption RXL of chicken to be sold; investigating the price of live chicken HJSJ on the current market and the current price of the feed of the broiler chicken LJ; counting the number of the currently fed broiler chicken DCJ; investigating the number of days of currently feeding the broiler chicken; and calculating a value y according to a calculation formula to judge whether the broiler chicken should be sold or not. Inthe calculation method provided by the invention, the growth curve, feed conversion rate and economic benefit of the broiler chicken are taken as basis, and the price of the live chicken, the price of the feed, the number of the fed chicken and the number of days are taken as parameters; by the method, a feeder can easily perform measurement; and the method is easy to operate.

The invention discloses a rapid and effective soil improvement method. The method includes the following steps that after infrastructure construction of a field is finished, soil of the field is leveled and ploughed deeply by 200 mm-400 mm; animal waste is evenly added in the soil of the field by the ratio of 2 tons-5 tons per mu, and organic matter residue is evenly added in the soil of the field by the ratio of 4 m<3>-8 m<3> per mu; after ploughing and soil preparation, 5000 ml-10000 ml biological bacterial fertilizer is diluted by 80-120 times with water and then evenly sprayed in the soil, and the soil humidity is kept at 60-80% for one month. The method can rapidly improve hardening and the acid-base property of the soil, improve circulating planting of the field, promote root growth of plants, reduce organic planting cost and improve the organic planting yield.

The invention discloses a preparation method of carbon powder which is characterized by mixing petroleum coke, pitch coke, coal tar pitch coke according to the ratio 50+ / -5: 30+ / -5: 20+ / -5 after carefully chosen, calcining the mixture at 1200-1400 DEG C, finally processing the mixture into materials with different morphology such as flake, ellipse-like, circular-like after breaking up, screening,pressing, roasting, graphitizing, mechanical processing and treating, doping and spheriodizing and carbonization treating at high temperature, finally obtaining good quality of carbon powder M which has advantages of ordered morphology, high specific capacity, long circulation life with safety and reliability. The art for producing carbon powder M cathode material is simple, maturely and stable, which is suitable for popularization and application in the lithium battery industry.

The invention discloses a detection method for carbon dioxide emission based on oxygen content determination. The detection method is used for calculating the carbon dioxide emission through a difference value between the content of oxygen in air entering combustion equipment and the content of oxygen in flue gas discharged out of the entering combustion equipment. The detection method is simple in process, smaller in data fluctuation, accurate in analysis and low in detection cost. The invention further discloses a detection device applied to the detection method, which comprises an air flow determining device, a flue gas flow determining device, a flue gas oxygen content determining device and a data analysis device. The detection device can realize on-line detection and is high in detection speed.