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

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 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 an in vitro maturation culture method of denuded oocytes of mice. The method comprises the following steps: (1) performing in vitro maturation culture on the denuded oocytes; (2) performing parthenogenetic activation on matured denuded oocytes; (3) performing in vitro fertilization on the matured denuded oocytes. According to the method, an environment for artificially simulating natural maturation of oocytes can be created, so that the denuded oocytes can efficiently maturate and grow in vitro and can be subjected to in vitro fertilization and embryonic development as same as normally growing oocytes after in vitro maturation culture. The practice proves that the in vitro maturation culture efficiency of the denuded oocytes of the system is high, the system is mature and stable, and the embryonic development quality of the denuded oocytes is high after in vitro natural fertilization, so that the application and popularization of the denuded oocytes in reproductive health of human beings and genetic breeding of modern livestock can be greatly facilitated. In addition, the operation of obtaining blastulae from the denuded oocytes is simplified and the denuded oocytes serving as ovum sources can be conveniently put into actual production.

The invention relates to novel antibacterial restorative functional dressing and a preparation method thereof. The novel antibacterial restorative functional dressing is formed by crosslinking and compounding chitosan and collagen on a bacterial cellulose membrane through a cross-linking agent, wherein a mass ratio of the chitosan to the bacterial cellulose membrane is (0.001-5) to 100; a mass ratio of collagen to the bacterial cellulose membrane is (0.5-20) to 100; a mass ratio of the chitosan to the collagen is (0.001-5) to (20-0.5); and the collagen is a mixture of collagen with small molecular weight and collagen with large molecular weight according to a ratio of 1 to 1. The antibacterial restorative functional dressing has very good biocompatibility, cellular affinity and mechanical property, has excellent water-permeable, gas-permeable or drainage and moisture absorption effect, has the effects of realizing antisepsis and anti-inflammation, reducing wound infection and quickly relieving pain of the wound, and has the effects of relieving chromatosis and promoting the wound to heal during a wound healing period. Meanwhile, the dressing can naturally drop along with epithelial regeneration, so that the treatment time and cost is reduced, and the wound infection probability is reduced.

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 the field of high-temperature functional ceramic coating materials, and particularly discloses a thickness-adjustable thermal insulation / infrared stealth composite coating. The composite coating is of a multi-layer stacked structure and sequentially comprises a metal bonding layer, a ceramic layer and an infrared low-emissivity layer from inside to outside, the ceramic layer is a lanthanum phosphate-hexaaluminate composite ceramic layer, and the infrared low-emissivity layer is a low-emissivity coating which is formed by taking Bi2O3-Al2O3-TiO2-Li2O-SiO2 series low-melting-point glass as a binding phase and taking silver as a conductive phase. A titanium alloy material with the surface coated with the coating and a preparation method of the titanium alloy materialare further provided. The heat insulation / infrared stealth composite coating has the characteristics of excellent thermal shock resistance and high-temperature infrared low emissivity; and the thickness of the coating can be regulated and controlled according to different actual application requirements, and the density and the heat insulation performance of the coating surface can be regulated.

The invention relates to the technical field of high-temperature infrared stealth coatings, and particularly discloses a thermal barrier / infrared low-emissivity integrated coating based on a fluorescent sublayer, the thermal barrier / infrared low-emissivity integrated coating is of a multi-layer structure, and the thermal barrier / infrared low-emissivity integrated coating sequentially comprises a metal bonding layer, a thermal barrier ceramic inner layer, a rare earth fluorescent sublayer and an infrared low-emissivity layer from inside to outside. According to the thermal barrier / infrared low-emissivity integrated coating disclosed by the invention, aiming at the urgent application requirements of thermal shock resistance life prolonging and external field in-situ detection of a high-temperature infrared stealth coating, the rare earth fluorescent sublayer is added into the ceramic layer by combining a rare earth fluorescent sublayer technology, a thermal barrier ceramic layer technology and a high-temperature infrared low-emissivity coating technology; and damage indication of the infrared low-emissivity layer is achieved, and meanwhile by means of the low infrared emissivity characteristic of the high-temperature low-emissivity coating and the excellent heat insulation characteristic of the ceramic layer, the thermal barrier / infrared low-emissivity integrated coating has the heat insulation performance and the high-temperature infrared stealth performance.

The invention discloses a target regulation system for dedifferentiation of somatic cells, a kit and an application of the kit. The target regulation system regulates the somatic cells: inhibition ofPKC activity, inhibition of DNMT activity and / or inhibition of HMT activity and / or inhibition of the activity of histone demethylase; corresponding regulation key targets include PKC, DNMT and / or HMTand / or histone demethylase; the somatic cells are differentiated cells. The target regulation system provided by the invention can promote the efficiency of adopting small molecules to induce the somatic cells to transdifferentiate into different types of functional target cells, and has the advantages of clear targets, clear ingredients, maturity and stability, and easy quality control and large-scale production.

The invention belongs to the technical field of wastewater treatment, relates to a process for green integrated treatment of hospital wastewater and aims to solve the problem of incompleteness in pathogenic microorganism and organic matter clearing in application of an existing hospital wastewater treatment method. The process includes that the hospital wastewater sequentially flows through a septic tank, a grating net, a regulating tank, a biological tank, a super-magnetic separation system and a mud-water separation system; ABS microbial agents are added into both the septic tank and the biological tank, and primary degradation and complete degradation of pollutants such as COD, BOD, SS, escherichia coli and TN are sequentially performed; wastewater treated by the biological tank entersthe super-magnetic separation system to remove insoluble pollutants. By effective combination of an ABS microbial agent treatment method and a super-magnetic separation water treatment method, the environmental problem that hospital wastewater treatment does not reach standards is solved, adoption of chemical agents for disinfection is avoided, and accordingly wastewater treatment cost is saved, secondary pollution is avoided, up-to-standard discharge is realized, and reclaimed water recycling can be realized.

The invention discloses a radio frequency (RF) probe for testing PCB board impedance. The RF probe comprises ground pins, a ground shell, a ground spring, a signal pin, and a flange; two ground pins and one signal pin are arranged; since the flange covers a main outer conductor shell in the testing process, three contact pins without eccentricity is guaranteed when the flange is pressed; three contact pins perfectly contact a testing point of a PCB board, the contact is good and non-eccentric; the RF probe joint type is a SMA female structure and adopts a standard structure; the RF probe is mature and stable, high in frequency and simple in processing; the probe use frequency is greater than the actual use frequency of the PCB board, the working frequency can completely adapt to the testing width required by the PCB board.

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 application of PEDF (pigment epithelium derived factor) and derivatives thereof in preparing a drug for reconstructing coronary artery reserved collateral microcirculation anda drug screening method. The application comprises application of the PEDF in preparing the drug for reconstructing the coronary artery reserved collateral microcirculation, and application of PEDF derivative polypeptide in preparing the drug for reconstructing the coronary artery reserved collateral microcirculation, wherein the PEDF derivative polypeptide comprises 44 to 77aa polypeptide segments of the PEDF. The invention further comprises the screening method of the drug for reconstructing the coronary artery reserved collateral microcirculation. The drug for reconstructing the coronary artery reserved collateral microcirculation, disclosed by the invention, has the advantages that perfusion function can be improved, effective perfusion time is prolonged, stable connection of coronaryartery reserved collateral microcirculation vascular endothelial cells is promoted, leakage of coronary artery reserved collateral microcirculation blood vessels is stopped, side interstitial edema ofthe coronary artery reserved collateral microcirculation blood vessels is relieved and heart functions are improved.

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 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 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 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 relates to application of an organosilicon material in 3D printing, and belongs to the technical field of 3D printing photocuring. The organic silicon material is cured by infrared light in the 3D printing process. According to the single-component organic silicon material, infrared light is adopted to initiate local short-time curing of the addition type organic silicon material, rapid curing forming of the organic silicon material in the printing process of a 3D printer is achieved, and good mechanical performance is achieved.