52results about How to "Good technical foundation" patented technology

The invention discloses a comprehensive control method for the town water pollution in the three gorges reservoir area, comprising a method for controlling a series of pollutants such as the town industrial and domestic pollution sources discharged out of the small-town area and the city area, the urban non-point source pollution caused by the rainfall runoff generation and the like, so that the comprehensive control method has the characteristics of being feasible in technology, reasonable in economical efficiency, remarkable in combined effect and the like, and the defect that the existing pollutant control method is single in implementation mode, free from technology support, and free from pertinence can be overcome. By respectively setting a water pollution control method for the small-town area of the three gorges reservoir area and the residential district, the dense population business district and the industrial park of the city region, the comprehensive control method for the town water pollution in the three gorges reservoir area is integrated, so that the powerful technology support can be provided for realizing the total water quality target requirement and the pollution abatement work in the three gorges reservoir area of China, and the example can be provided for the town water pollution control of various hydraulic and hydro-power engineering reservoir areas in the western China.

The invention provides a spacecraft propellant on-track supplementation system. The system comprises a propellant receiving device; the propellant receiving device comprises a pressurized gas reuse unit, a propellant liquid supplemental path unit and a propellant removal blowing unit. The invention also provides an implementation method for propellant on-track supplementation by using the above-mentioned spacecraft propellant on-track supplementation system, and the method comprises the following steps of a gas injection step, a docking step, a leak detection step, a supplement step, a removalblowing step and a separation step. The invention also provides an aircraft, and the aircraft comprises a plurality of propellant receiving devices in the above-mentioned spacecraft propellant on-track supplement system. The propellant receiving devices are provided with storage box pressurized gas multiple reuse functions, and compared with the method of directly discharging the storage box pressurized gas and then conducting propellant supplement, pressurized gas does not need to be supplemented, and propellant supplement cost is reduced.

The present invention discloses a calorstat for a Christian Vieri experiment, and comprises a metal bath cavity body, an electrical heater, a sample cup bracket, a bracket driving mechanism, a temperature controller which contains a platinum resistance thermometer and a thermoregulator, and a temperature measured signal deduced mechanism which contains a conductive ring and a dynamic electrode group. The present invention is characterized in that the platinum resistance thermometer is directly positioned in a sample testing area. The conductive ring is connected with the output terminal of the platinum resistance thermometer. The dynamic electrode group is connected with the temperature signal input terminal of the thermoregulator. The lower end of the dynamic electrode group keeps a good contact with the conductive ring. When the bracket driving mechanism drives the sample cup bracket to rotate, the dynamic electrode group slides on the surface of the conductive ring, and the resistance value of the platinum resistance thermometer is transmitted to the thermoregulator, so the heating current of the electrical heater is controlled, Thereby the temperature of the sample placed area can be directly controlled and displayed in real time, and the standard requirement of the Christian Vieri experiment can be satisfied. The invention has the advantages of high temperature control precision, convenient use and low cost.

The invention relates to the field of food deep processing, in particular to a potato nutrition recombinant rice recipe and a preparation method thereof. Through the addition of sucrose ester, sodiumalginate and yeast beta-glucan, a recombinant structure is regulated and controlled; mixed materials subjected to tempering are added into a double-screw extruding machine through a feeder; the double-screw extruding machine comprises five heating regions; the length-to-diameter ratio of a screw rod is 16:1-28:1; the work temperatures of each section of cavity of the double-screw extruding machineare shown as follows: the region I temperature is 50 to 70 DEG C; the region II temperature is 80 to 100 DEG C; the region III temperature is 120 to 140 DEG C; the region IV temperature is 110 to 120DEG C; the region V temperature is 25 to 40 DEG C; the screw rod rotating speed is 200 to 300 rpm. The materials form gel particles in the processes of conveying, extrusion and aging action processesof the double-screw extruding machine; the extrusion shaping is performed through a mold which has the round mold hole and has the diameter being 1 to 6mm; the recombinant rice is primarily obtained;through steaming and boiling pretreatment, the viscosity of the potato whole flour is reduced; the potato whole flour is in a low- gelatinization state; the recombinant rice with good resuscitation resistant performance, comprehensive nutrition and good structure can be obtained.

The invention discloses a liquid lithium injection device which is applied to a fusion device and is provided with a sealing structure. The device comprises a heating structure of a heat source builtin a lithium injection pipe, a vacuum sealing structure of the heat source, and the wedge sealing structure design of liquid lithium. Through the heat source built in the lithium injection pipe, the temperature and fluidity of the liquid lithium can be effectively controlled. The vacuum sealing structure of the heat source can maintain the vacuum environment of a liquid lithium injection system. The liquid lithium does not react with O2, N2, H2O and CO2 in the air. A top bellows is moved to control the wedge sealing structure of the liquid lithium, and on and off of liquid lithium injection inthe fusion device are controlled. According to the invention, the device can easily, economically and effectively realize supplement and renewal of a liquid lithium first wall material in the fusiondevice, and provides a good technical basis for the successful application of the liquid lithium first wall in a fusion reactor in the future.

The invention discloses a rapid preparation method of multi-scale lithium spheres. Under protection of inert gas atmosphere, lithium raw materials are fed into a lithium melting tank through a feed inlet and heated to a certain temperature through a heater, inert gas with gas pressure adjusted to be appropriate through an inflation valve, a straight-way valve and a deflation valve is used for squeezing liquid lithium in a lithium pipe, the liquid lithium is sprayed to a cooling agent through small holes in a plug and rapidly cooled and cured to obtain lithium spheres, the gas pressure of introduced gas is adjusted so as to produce submillimeter-scale lithium spheres with different diameters, subsequent treatment is carried out, and the clean multi-scale lithium spheres are obtained. The operation is easy, the production period is short, the lithium spheres are formed regularly, the size is controllable in submillimeter scale, the requirements of EAST device lithium sphere injection forELMs modulation and plasma fracture protection experiments can be met, and a good technical basis is provided for successful application of impurity injection in a fusion reactor in the future.

The invention discloses high-performance wear-resistant anticorrosive paint, a coating and a preparation method, and belongs to the technical field of chemical materials. The paint is formed by mixinga component A and a component B, the component A comprises wear-resistant anticorrosive resin, pigment filler, a solvent and an assistant, and the component B mainly comprises a curing agent; the paint comprises the following components in parts by mass: 21.6-51.25 parts of the wear-resistant and corrosion-resistant resin; 25-40 parts of the pigment filler; 20 to 30 parts of the solvent and 3-8 parts of the assistant; wherein the wear-resistant anticorrosive resin is epoxy resin, and the curing agent is a modified alicyclic amine curing agent. On the basis of epoxy resin and other pigments and fillers, a modified alicyclic amine curing agent with high wear resistance and high hardness and high-wear-resistance heavy-duty anticorrosive filler aluminum oxide are compounded and subjected to formula optimization to form the high-hardness high-wear-resistance heavy-duty anticorrosive paint. The paint has the characteristics of high adhesion, high wear resistance, heavy corrosion resistanceand the like, and has the characteristics of wide substrate matching range, strong adhesion, high insulativity and the like.

The invention discloses an American-type PRRSV N protein antigenic epitope and applications thereof, and aims to solve the technical problem of insufficient research on PRRSV N protein cell epitopes.The invention designs a short peptide, and the amino acid sequence of the short peptide is as shown in SEQ NO.1 or is an amino acid sequence which is derived from the amino acid sequence as shown in the SEQ ID NO.1 and has the same function. The American-type PRRSV N protein antigenic epitope is screened, and comprises the amino acid sequence of the short peptide. The short peptide or the American-type PRRSV N protein antigenic epitope are applied in preparing an antibody for preventing and/or treating American-type PRRSV. The invention provides a novel N-protein antigenic epitope, completes the identification of the epitope, improves the epitope map of the N protein, lays a foundation for the research of American-type PRRSV cross-protective epitope vaccines, and has great significance fordifferentiated detection on American-type PRRSV and European-type PRRSV.

The invention discloses a novel split sliding valve sleeve structure comprising a reducing sleeve, a valve sleeve and a valve seat, wherein the reducing sleeve is arranged in an inner hole of a main valve body; a sliding chute matched with the valve seat is arranged in an inner hole of the reducing sleeve; the reducing sleeve and the valve seat are respectively provided with correspondingly-communicated through holes; and the valve sleeve is arranged in the reducing sleeve and is provided with a notch matched with a grinding surface of the valve seat. According to the invention, by changing the traditional sliding valve sleeve with an integrated structure into a detachable split structure and changing an inner grinding surface of the traditional sliding sleeve into an outer grinding surface, the planeness of a sealing surface of the sliding valve sleeve can be improved by conveniently adopting a novel high-precision processing and grinding process, so that the grinding of the sliding valve sleeve is changed into the modern objective scientific mechanical automatic grinding from the experiential workshop manual operation, the grinding quality can be fundamentally improved and the qualitative leap of the grinding work can be realized.

The invention relates to a hot riveting method for a TC4 titanium alloy pin. The hot riveting method is characterized by comprising the following steps: 1, a to-be-riveted plate-shaped part and a to-be-riveted pin are cleaned; 2, the plate-shaped part is installed on a riveting tool and leveled, and the riveting tool is composed of an upper electrode assembly and a lower electrode assembly; 3, the pin is clamped, the heating current, the heating time and the riveting pressure of a projection welding machine are controlled to rivet the plate-shaped part so as to guarantee the size and the appearance of the plate-shaped part and the torque requirement of 4-9 Nm between the pin and the plate-shaped part, then the plate-shaped part is taken down, wherein the riveting pressure ranges from 0.06 Mpa to 0.14 Mpa, the heating time is 0.14 s, and the heating current ranges from 4.0 KA to 4.6 KA; and optionally 4, visual inspection is conducted on the riveted plate-shaped part, and torque test is conducted on the riveted first and last test pieces.

The invention discloses an ultrahigh-speed revolving cup assembly directly driven by an iron-loss-free permanent magnet brushless motor, which comprises a fixed sleeve, a rotating part, a permanent magnet suspension bearing part and a motor, and is characterized in that the rotating part comprises a shaft rod and a revolving cup head; the permanent magnet suspension bearing part comprises a radialbearing, the radial bearing comprises an inner permanent magnet ring and an outer permanent magnet ring which are coaxially arranged, the outer permanent magnet ring is fixedly installed on the innerwall of the fixing sleeve, radial magnetization is adopted for the inner permanent magnet ring and the outer permanent magnet ring, and the polarity of the outer wall of the inner permanent magnet ring is the same as that of the inner wall of the outer permanent magnet ring; the motor comprises an armature assembly and a rotor assembly, the armature assembly is fixedly installed on the fixing sleeve, and the rotor assembly is fixedly connected with the shaft rod. A compact permanent magnet suspension bearing structure is adopted, so that a rotating component has smaller rotational inertia under the condition of the same mass, the radial centrifugal force of a rotor component is smaller, and the use amount of permanent magnets in the permanent magnet suspension bearing is reduced.

The invention relates to a method for representing, storing and querying resource big data. The method comprises the following steps: constructing a ground target model, a resource capability model and a joint search model, and dividing a space region where a ground target is located to obtain a series of subspaces; representing ground targets in the spatial region by adopting a ground target model to obtain a ground target set, extracting target description information of each ground target in the ground target set to obtain keyword information, and obtaining an entry set; and constructing a target resource combination according to the corresponding relationship between the ground target and the series of subspaces and the corresponding relationship between the ground target and the resources. By adopting the method, the resource big data can be accurately represented.