33results about How to "High technical feasibility" patented technology

Disclosed is a progressive ophthalmic lens including a front surface and a rear surface, each surface having in each point an altitude, a mean sphere value and a cylinder value, the front surface of the lens including: —a far vision zone having a far vision reference point; —a near vision zone having a near vision reference point; —a main meridian, wherein the front surface is regressive and has: —a sphere gradient normalized value of less than 7.50·10⁻¹ mm⁻¹ at any point in a central portion of the lens including a portion of the main meridian (32), the far vision reference point (FV) and the near vision reference point (NV); —a cylinder gradient normalized value of less than 1.45 mm⁻¹ at any point in the central portion of the lens.

The invention relates to a method and a device for treating and recycling copper-containing acid wastewater of mines. The method comprises the following steps: mixing two wastewaters, namely copper pit water and raffinate, in a certain volume proportion, so as to form mixed acid wastewater; carrying out fractional precipitation on valuable heavy metals in the mixed acid wastewater by virtue of a combined medicament, so as to reduce neutralizing residue and recycle copper; recycling copper in the acid wastewater through the synergic effect generated in a metabolic process of chemical precipitates and sulfate reducing bacteria; and preparing a compound fertilizer from organic sludge generated by virtue of a biochemical method, and reusing the compound fertilizer in the rehabilitation and afforesting of the mines. According to the device for implementing the method, hydrogen sulfide circulating and absorbing equipment is additionally arranged, a reaction device is optimized, and combinedfillers of a bioreactor are optimized, so that the conversion efficiency of sulfate reducing bacteria to SO4<2-> is increased, and the repeated cyclic utilization of hydrogen sulfide is realized. A process adopted in the method is environment-friendly and has good universality to working conditions of the mines, so that the method has the advantages that the recycling rate of copper in the acid wastewater is more than or equal to 92%, the reduction amount of the neutralizing residue is more than or equal to 70%, the storage capacity pressure of tailings can be effectively reduced, and the like.

The invention relates to the field of metallurgical pressure machining and coating, and provides a steel coating device and a production method of the steel coating device. Production of hot-rolled acid-pickling-free steel and coating steel of other varieties such as galvanized steel is achieved. The steel coating device comprises a reduction cooling device, a coating device and an after-coating cooling device. The hot-rolled acid-pickling-free steel with glass films can be produced through the coating device arranged on an outlet of a hot rolling finishing mill. The steel coating device has the advantages that technical feasibility is high, investment is low, and the effect is remarkable; the requirements of various industries are met; coating materials are cheap, easy to obtain and high in renewable utilization value; energy conservation and emission reduction of multiple industries can be promoted, and meanwhile sound development of downstream industries is driven; online and simultaneous production of the acid-pickling-free steel and the coating steel can be achieved on one hot rolling production line.

The invention provides a heat storage type air source heat pump water cooling and heating system and an operation method thereof, and belongs to the field of heat pump technologies and refrigerating air conditioners. The system comprises an outdoor source side, a heat pump host, a user side and a heat storage module. The outdoor source side comprises a refrigerating medium pump, an air cooling heat exchanger and source side valves. An outlet of the refrigerating medium pump is sequentially connected with the air cooling heat exchanger and the source side valves through pipelines and then returns to an inlet of the refrigerating medium pump through a first liquid cooling type heat exchanger of the heat pump host. A heat storage side mainly comprises a first valve, a second valve, a heat storage box, a third valve and a fourth valve. One side of the heat storage box is sequentially connected with the first valve and the source side valves on the source side through pipelines and then returns to the heat storage box through the second valve. The other side of the heat storage box is sequentially connected with the third valve and the user side valve on the user side through pipelines and then returns to the heat storage box through the fourth valve. By adopting the heat storage type air source heat pump water cooling and heating system, the capacity of a heat pump system supplying heat in winter can be greatly reduced, the primary investment is lowered, and the operation efficiency of the heat pump is improved.

The invention relates to a mountain talus landslide prediction method and device. The prediction method starts with the dynamic analysis of the formation condition, the deformation state and the influence degree of an inducing factor of landslide, integrally determines the development degree and the dangerousness of the landslide from a macroscopic view, analyzes the development tendency of the landslide, establishes a landslide prediction model according to the displacement data of the landslide on the basis of the development tendency, carries out landslide displacement diachronic analysis and judges landslide occurrence time. The prediction device comprises a data acquisition network unit, a GPS (Global Positioning System) network transmission unit and a wireless serial port data sharing network unit, wherein the data acquisition network unit 1 consists of a terminal acquisition node, a routing node and a coordination node. The prediction method of the invention can better determine the development state of the landslide, analyze the qualitative and quantitative possibility that the landslide generates severe sliding, and make accurate discrimination on the landslides under different development stages. The prediction device has the advantages of being simple in structure, convenient in layout and use, high in technical feasibility, long in endurance time and low in energy consumption.

The invention provides a 10kW-level space nuclear energy closed type Brayton cycle thermoelectric conversion system, which is applied to spacecraft power and and is used for converting heat energy generated by an isotope heat source into electric energy and providing electric power for loads such as an electric thruster. The power generation power of the 10kW-level space nuclear energy closed typeBrayton cycle thermoelectric conversion system provided by the invention is 10 kW; a working medium loop is designed according to a closed Brayton cycle; and a working medium is sequentially subjected to a thermodynamic process including adiabatic compression in an air compressor, constant-pressure heating with an isotope source as a heat source, adiabatic expansion in a turbine and constant-pressure cooling. According to the system, the physical properties of the used inert gas working medium are fully considered; the advantages of each component gas in the working medium gas in the aspectsof thermal conductivity, thermal capacity and the like are comprehensively utilized; and by a repeated iteration design, the system has the characteristics of compact layout, high conversion efficiency, high power density, high environmental adaptability and the like and is also suitable for a power system of an underwater vehicle.

A method for determining a progressive ophthalmic lens, comprising determining first, second and third intermediate values of regression as the strongest regression that can be applied on the front surface of the lens while keeping a mean sphere value in at least a portion of the lower part of the rear surface of the lens less or equal to, respectively, first, second and third predetermined values; and determining a value of regression (d) for the front surface as the maximum value among the first, second and third intermediate values of regression.

The invention discloses a residual vibration suppression system and method for an industrial robot, and the system comprises an embedded industrial control computer with a real-time control function, an acceleration sensor, an acceleration signal transmission device, the industrial robot, and a servo controller of the industrial robot. The acceleration sensor is installed at the tail end of the industrial robot through an acceleration sensor fixing element, collected acceleration signals are connected into a servo driver of the industrial robot through an acceleration signal transmission device, and the servo driver is connected with the embedded industrial personal computer through a gigabit industrial Ethernet interface. The residual vibration suppression system provided by the invention is relatively simple and relatively low in cost, the industrial robot control platform has a real-time function, and the residual vibration suppression method provided by the invention can further improve the smoothness of track operation and reduce the impact on the motor in the operation process while realizing the maximum suppression of the residual vibration, so that the reliability of the system is improved. And the contour precision of the interpolation track is ensured.

The invention aims to provide a cable damage detection method and device based on laser slab and vision. The method is characterized by comprising the steps of navigating and mapping the interior of acable pipeline through a Cartogrammer package, recording the temperature, magnetic field information and image information of a cable, and detecting a damaged point of the cable; accurately positioning the damaged point through a YoloV3 LA algorithm, and recording information in the form of a coordinate vector and a picture; and recording data in the maintenance process in a local hard disk, andfurther conducting information extraction after maintenance is completed. Due to the introduction of the Yolo v3 LA algorithm, compared with an existing rescue robot, the method and device are low inmanufacturing cost and high in technical implementation feasibility, and in the use process, an operator can remotely control the device to conduct overhaul patrol and obtain real-time data, and doesnot need to enter a pipeline by himself/herself.

The invention provides a photothermal enhanced photosensitizer based on black phosphorus. The simple structure formula of the photothermal enhanced photosensitizer based on black phosphorus is POM@PEG@BP; POM is polyoxometallate; PEG is a polyethylene glycol chain; BP is a black phosphorus nanosheet; one end of the polyethylene glycol chain is connected with the black phosphorus nanosheet; and theother end of the polyethylene glycol chain is connected with the polyoxometallate. The invention provides a preparation method and application of the photothermal enhanced photosensitizer based on black phosphorus. The photothermal enhanced photosensitizer based on black phosphorus in the invention is a powerful and intelligent photosensitizer; and the photosensitizer has the effects of automatically identifying tumour and non-tumour cells, automatically assembling, enhancing the light absorption capability and enhancing the photothermal performance and specific accumulation of tumour parts,and also has relatively high biological imaging capability and intelligent tumour cell tracking capability.

The invention provides a comprehensive energy system and method for combined development and utilization of various resources in deep and far sea. The comprehensive energy system comprises an offshore energy processing platform, an offshore wind power plant, an offshore photoelectric field, an offshore photo-thermal field, a natural gas platform and a transport ship. The offshore energy treatment platform comprises a storage battery module, a water electrolysis hydrogen production module, an electrical module, a control module, a fresh water supply module, a heat supply module, a low-carbon power generation module and an organic liquid fuel synthesis module. According to the invention, an offshore energy treatment platform is arranged, and resources developed by an offshore wind power plant, an offshore photoelectric field, an offshore photo-thermal field and a natural gas platform can be organically combined. Through a collaborative development mode, various energy sources in ocean resource development are fully utilized, so that energy sources such as electric energy and natural gas developed from deep and far sea can be transported back to a land load center to be used, or fuel is provided for sailing ships, the resource development cost of the deep and far sea is reduced, and the technical feasibility is improved.