48results about How to "The principle is scientific and reasonable" patented technology

The present invention discloses a low-speed wind tunnel model flying experimental system and a method. The system comprises an aircraft dynamic similarity ratio model, a model aircraft attitude measurement system, a rudder surface movement driving system, an engine power simulation system, a flight control system, a flight operation system, a wind tunnel operation system, and a safety protection system. The experimental system of present invention is equipped with the safety protection system, thus the aerodynamic characteristics of the model are not affected and the six-degree-of-freedom flying state of a real aircraft can be simulated, the thrust simulation of an engine can be realized, the flight control system and the flight operation system are added, the six-degree-of-freedom flying of the aircraft model in a wind tunnel testing segment can be realized through pilot operation, the aircraft air flying movement environment is fully simulated in the wind tunnel, and the pneumatic, flight mechanics and flight control characteristics of the aircraft can be researched in the wind tunnel.

The invention belongs to the technical field of remote sensing image processing, and relates to a green tide information extraction method. The method comprises: obtaining a sea area satellite remote sensing image with a conventional method, screening images of green tide regions, and performing preprocessing operations of geometric correction and image mosaicking; calculating and determining a green tide range by adopting a normalized difference vegetation index; cutting a region of interest in any shape to generate an irregular image file containing the green tide regions; extracting green tide information by adopting a split Bregman fast projection algorithm of a variational level set two-phase image segmentation based Chen-Wees model; and finally, quantitatively calculating the green tide regions by adopting a quantitative formula. The image segmentation based variational model accurately extracts and quantifies the green tide information on the satellite remote sensing image, so that a conventional manual threshold method can be completely replaced and operational application can be realized; and method is scientific and reasonable in principle, low in human factor quantity, high in calculation speed, accurate and stable in result, high in operability, friendly in application environment, high in practicality and easy to popularize.

The invention discloses an enzyme-linked immunosorbent assay method for detecting cadmium-metallothionein in the flesh of a shell. The method comprises the following steps of: inducing the shell to synthesize the cadmium-metallothionein by using cadmium chloride, inducing a rabbit to synthesize an antibody by using purified metallothionein, separating and purifying the antibody, using an electrophoretically pure rabbit anti-shell metallothionein antibody as a primary antibody and a goat anti-rabbit enzyme labelled antibody as a secondary antibody, and assaying the cadmium-metallothionein content of the shell by using the indirect competitive enzyme-linked immunosorbent assay method. The method has the advantages of scientific and rational principle and relatively mature technical process and is used for assaying the cadmium-metallothionein content of the flesh of the shell so as to indirectly reflect the cadmium pollution of the flesh of the shell and provide a fast and sensitive detection method for assaying the heavy metal cadmium in the flesh of the shell.

The invention belongs to the technical field of solar cell manufacturing, and relates to a manufacturing method for a hybrid heterojunction solar cell. The manufacturing method comprises the five steps of manufacturing a conductive glass substrate, manufacturing an ordered TiO2 nanorod array film layer, manufacturing an Sb2S3 nano film layer, manufacturing a P3HT nano film layer and manufacturing an Ag film electrode. The ordered TiO2 nanorod array film layer is manufactured by adopting a one-step low-temperature hydrothermal method, the Sb2S3 nano film layer is formed by depositing Sb2S3 on the surface of the ordered TiO2 nanorod array film layer by adopting a chemical liquid phase deposition method, the P3HT nano film layer is formed by depositing P3HT on the surface of the Sb2S3 nano film layer by adopting a spin-coating method, and an Ag electrode is plated on the surface of the P3HT nano film layer by adopting a thermal evaporation method or a magnetron sputtering method at last, thereby manufacturing the TiO2/Sb2S3/P3HT hybrid heterojunction solar cell. The manufacturing method has the advantages of simple and controllable process, scientific and reasonable principle, low energy consumption and production cost, high operability, energy conservation, environment protection and friendly operating environment, can be recycled and reused, and is suitable for large-scale production, popularization and use.

The invention belongs to the technical field of machinery equipment, and relates to a preparation device of graphene composite dispersion liquid. A main body structure of the preparation device comprises a reaction kettle, a No.1 electrohydraulic servo mechanism, a No.1 sampling valve, a No.1 sampling opening, a No.1 pressurizing cylinder, a No.2 electrohydraulic servo mechanism, a No.2 pressurizing cylinder, a No.3 electrohydraulic servo mechanism, a No.1 pressure reduction cylinder, a No.4 electrohydraulic servo mechanism, a No.2 pressure reduction cylinder, a No.5 electrohydraulic servo mechanism, a storage container, a No.1 pressure meter, a No.1 branch pipeline, a No.1 one-way jet flow valve, a No.2 pressure meter, a safety valve, a liquid inflating valve, a liquid filling opening, a No.2 branch pipeline, a two-way jet flow valve, a No.3 pressure meter, a No.2 sampling valve, a No.2 sampling opening, a No.2 one-way jet flow valve, a No.4 pressure meter, a No.3 one-way jet flow valve, a No.5 pressure meter, a No.4 one-way jet flow valve, a No.3 sampling valve, a discharging valve, a No.3 sampling opening and a valve. The preparation device has the advantages that the structure is simple; safety and environment protection are realized; the preparation device can be widely used in the fields of chemical engineering, medicine, food processing and the like; the popularization and the use are easy.

The invention discloses a GO/NR composite preparation method which comprises the following steps of S100, putting silicon dioxide, deionized water and a GO aqueous solution into a stirrer for stirring, and dispersing a mixture into a GO-SiO2 mixed liquid with a high-speed shearing machine; S200, adding 100 parts of centrifugal concentrated natural latex by mass in the GO-SiO2 mixed liquid, and performing ultrasonic vibration to obtain a GO-SiO2/NRL mixed liquid; S300, pouring the GO-SiO2/NRL mixed liquid into an open mill, obtaining a rubber master batch on a roller of the open mill, and scraping and collecting the rubber master batch with a scraper on the roller after the rubber master batch is dried for later use; and S400, mixing the prepared rubber master batch, zinc oxide (ZnO), stearic acid (SAD), an accelerant DPG and an anti-aging agent 4020 to finish preparation of a GO-SiO2/NRL composite. By adopting the GO/NR composite preparation method, the phenomenon of uneven combinationof molecules in the rubber master batch caused by the accumulation of groups in the process of standing and jetting is avoided, and then liquid drops are instantaneously dehydrated and dried to obtain GO-SiO2/NRL rubber master batch; and GO/NR composite preparation method is simple and controllable in process, scientific and reasonable in principle, low in energy consumption and production cost,strong in operability, more uniform in dispersion and friendly in use environment.

The invention discloses a lichee pericarp girdling machine. The traditional lichee pericarp peeling method is operated manually, and the hazards brought by manual operation are the pollution on lichee flesh and the color and taste change of lichee flesh, thus reducing the quality of lichee products. In the invention, a rotatable feeding roller wheel and a rotatable rebarring wheel are respectively arranged on a rack through bearings, a feeding active bar is arranged below the feeing roller wheel. Lichees enter the rotary feeding roller wheel and the rotary rebarring wheel orderly, a blade girdles a circle of lichee peel, and the lichee peel is divided into two pieces to provide conditions for the following peeling off and denucleating work procedures. The invention completely realizes mechanical and automatic production, and lichee can be peeled off in a short time, thereby ensuring the quality of lichee flesh, reducing the probability of artificial pollution, and realizing industrialized production of lichee fruit juice, lichee pulp, lichee preserved fruit and other lichee products.

The invention belongs to the technical field of flight equipment and relates to a disc type aircraft. The aircraft can vertically take off and land. A main body structure comprises a high-pressure air chamber, a disc body, a load bearing bin, exhaust pipes, landing supports, exhaust holes, a high-pressure air flow supply device and an air valve. The high-pressure air flow supply device controls high-pressure air flow to be sprayed along the upper surface of the disc body through the exhaust holes, so the disc body generates raising force larger than the gravity of the disc type aircraft, and the disc type aircraft starts to ascend and take off; The exhaust pipes at corresponding positions are controlled to be opened and closed through the air valve so that the disc type aircraft can fly in different directions, and the disc type aircraft can move forward and backward, hover, horizontally move and steer; the aircraft can be manufactured into a remote control toy, an air photography device, a low-altitude ground reconnaissance device, an agricultural condition inspection device, a disaster scene rescue device and an offshore area detection and rescue device. The aircraft is simple in structure, scientific and reasonable in principle, safe and reliable in performance, low in manufacturing and maintenance cost, and convenient to operate and maintain, and the flight environment is friendly.

The invention belongs to the technical field of fluid overflow leakage detection and relates to an automatic detection control method for overflow leakage of a liquid pipeline. The automatic detection control method comprises the steps that firstly, an automatic liquid pipeline overflow leakage detection control device is installed between a heating radiator and a heating pipeline; heater flow parameters are monitored by a flow sensor in real time and uploaded to a control chip; the control chip is used for operation and processing according to a set command; and when leakage of the heating pipeline is judged, the chip is controlled to control a valve to be closed automatically, and thus the loss of a heater user is reduced. The heater user regulates the heater supply quantity according to heating requirements, the control chip is used for monitoring the temperature, flow and pressure of heating media and parameter information of the flow speed in real time according to the flow sensor and controlling the valve to operate, and the valve can be closed in time when unusual conditions happen; a heating control center can check heating fee according to temperature data recorded and stored by the control chip, and the heating fee can be refunded for overpayment or supplementary payment is demanded for shortage; and the technological process is simple, the theory is scientific and reasonable, the performance is safe and reliable, energy is saved, environmental friendliness is achieved, and the use environment is friendly.

The invention belongs to the technical field of construction and building material equipment, and relates to a light resisting type sliding window sash. A major structure comprises a sash, an upper window edge, a lower window edge, a left window edge, a right window edge, elastic stop pieces, a window body, a groove and a spring. The window sash of the rectangular frame-shaped structure is formed by defining the upper window edge, the lower window edge, the left window edge and the right window edge. A window body is arranged in the center of the window sash. Grooves of a rectangular inward concave type structure are formed in the left window edge and the right window edge in the perpendicular direction. The elastic stop pieces of an inverted T-shaped structure are arranged in the grooves in a clamped mode. 2-4 springs are arranged at the bottoms of the elastic stop pieces at equal intervals. The length of the elastic stop pieces is equal to the length of the grooves. The popup height of the elastic stop pieces is the perpendicular distance between the horizontal plane where the window body is located and the horizontal plane where the left window edge or the right window edge is located. The light resisting type sliding window sash is simple in structure, scientific and reasonable in principle, good in sealing performance and light resisting performance, environmentally friendly to use, easy to manufacture, low in manufacturing cost and applicable to building installation engineering such as residential buildings and office buildings.

The invention discloses a system for prolonging the service life of a light quantum lamp, and the system comprises a lamp current sensor module which is used for detecting the current value of the light quantum lamp; a potentiometer module used for adjusting the voltage and current of the light quantum lamp; a comparison module used for comparing one path of input voltage with one path of fixed reference voltage; a protection electrode used for maintaining the discharge electrode in the discharge tube and eliminating residual nitrogen, oxygen and water vapor; a timing module used for system timing; and a control module used for controlling the system module. The lamp current sensor module, the potentiometer module, the comparison module, the protection electrode and the timing module are electrically connected to the control module, the maximum safety rated current of the lamp current sensor module is 200-400 mA, and the voltage of the lamp current sensor module is 6-3 v. Through the implementation of the light quantum lamp, the service life of the light quantum lamp is prolonged, residual nitrogen, oxygen and water vapor can be eliminated, the principle is scientific and reasonable, the effect is high, and prominent progress is achieved.