40results about How to "Low environmental impact" patented technology

The invention discloses a farmland precise irrigation decision-making method based on fusion of a physical process and machine learning, and the method comprises the following steps: S1, data collection: collecting meteorological data, soil data, fertilization and irrigation data and cotton growth data in a cotton growth period, S2, data preprocessing: carrying out the cleaning, standardization and normalization processing of an original data set, and carrying out the calculation of the data set; the method comprises the following steps: S1, preprocessing a crop mechanism model, S3, data enhancement: constructing and calibrating the crop mechanism model by using preprocessed data, S4, selecting key feature variables, and dividing the obtained data set into a training set and a test set by using an original data set and an enhanced data set, S5, model training and optimization, and S6, model verification and evaluation. According to the method, by coupling the crop growth mechanism model and the machine learning algorithm, not only can the growth conditions of crops under different moisture conditions be simulated and predicted, but also the influence of soil salinity and alkalinity on crop growth can be evaluated, so that comprehensive decision support is provided for irrigation management.

The invention belongs to the technical field of lasers, and discloses a 9-shaped hybrid mode-locked fiber laser, which comprises a pumping source, a 2 * 2 polarization-maintaining fiber coupler, a nonlinear amplification loop mirror loop connected with the first side of the polarization-maintaining fiber coupler, and a chirp fiber Bragg grating connected with the second side of the polarization-maintaining fiber coupler, the polarization maintaining optical fiber coupler is located at the connecting position of the nonlinear amplification annular mirror loop and a linear arm of the laser resonant cavity and used for coupling laser of the nonlinear amplification annular mirror loop to the linear arm, and after being reflected by the chirp fiber bragg grating, the laser is output to the nonlinear amplification annular mirror loop through the chirp fiber bragg grating. And then the laser on the linear arm is split into two beams of light which are transmitted clockwise and anticlockwise in a loop of the nonlinear amplification annular mirror. Two passive mode locking technologies are combined, rapid and stable mode locking can be achieved, the influence of the environment on the operation state is small, the signal-to-noise ratio of output laser pulses can be increased, and ultra-short pulses with narrower pulse width can be achieved.

The invention relates to the technical field of traffic engineering, and discloses an urban air traffic vertical take-off and landing field site selection optimization method based on demand maximization, and the method comprises the following steps: S1, obtaining and preprocessing online car-hailing original data; s2, dividing grids for the research area range, and taking the grid center as an alternative address of a vertical take-off and landing field; s3, screening out online car-hailing travels which are impossible to turn to urban air traffic; s4, constructing a vertical take-off and landing field site selection model based on potential demand coverage maximization; s5, outputting the selected vertical take-off and landing field address and the corresponding urban air traffic travel demand; and S6, outputting the current optimal site selection and demand as a final solution of the model. According to the method, under the condition of the specific number of vertical takeoff and landing fields, the vertical takeoff and landing field addresses which enable potential requirements of urban air traffic to achieve maximum coverage are selected, an effective solution is provided for development of the urban air traffic, and construction of a more efficient, convenient and environment-friendly urban traffic system is facilitated.

The invention relates to the technical field of environment monitoring, in particular to an electric power carbon emission real-time monitoring system, which comprises a data acquisition module, a data processing module, a data processing module, a data processing module, a data processing module, a data processing module, a data processing module and a data processing module, wherein the data processing module receives sensor data of a plurality of monitoring points of a power plant and comprises a carbon emission value, a timestamp and an environment parameter of each sensor; and sorting according to the time sequence characteristics of the data, and establishing a serialized data set. According to the method, data cleaning and time serialization processing are applied, data accuracy and availability are improved, data management is more adaptive and prospective by dynamically adjusting calculation of strategies such as kurtosis and skewness, geometric and topological analysis methods are introduced to improve understanding of data structure features, complex modes in data are effectively recognized, and the method is suitable for being popularized and applied. According to the method and the system, the dependency relationship of a hole, a cluster and an emission source and the application of an anomaly detection technology are applied, so that timely identification of abnormal behaviors is enhanced, potential equipment faults or operation errors are allowed to be found in an early stage, timely intervention is realized, and unnecessary environmental influence is reduced.

The invention provides a waste mine pit resource utilization mining method based on sludge solidification, and relates to the technical field of mine exploitation and resource recovery, and the method comprises the steps of sludge and water body composition analysis, layered water body extraction, wastewater heavy metal treatment, multi-stage filtration and centrifugal separation, solidified body putting and gradual slow release, multi-stage stirring, and layered exploitation. And waste rock and tailings are backfilled. According to the method, environment-friendly treatment and resource mining of the waste mine pit sludge are effectively achieved, environmental pollution is reduced, the recovery rate of mineral resources is increased, and good economic and social benefits are achieved.

The invention discloses a natural gas transportation pipeline drag reduction structure, an optimization method and a system, and relates to the field of pipeline structures. The problems that groove drag reduction in the field of natural gas pipeline transportation aims at small-diameter pipelines, most grooves are in a traditional v shape, and the drag reduction effect is not remarkable enough are solved. The resistance reduction structure comprises a plurality of semicircular groove structures with alternate widths and widths; wherein the width of the wide groove is twice that of the narrow groove. The optimization method comprises the following steps: establishing a smooth pipeline and a model with a wide-narrow alternate semicircular groove on the wall surface; carrying out structured grid division on the smooth pipeline and the wall surface with the wide and narrow alternate semicircular grooves; numerical simulation is conducted through Fluent fluid simulation software, and a turbulent flow structure in the pipeline is obtained; and the drag reduction rate is calculated, and the final natural gas transportation pipeline drag reduction structure is determined according to the drag reduction rate. By reducing the resistance, the amount of conveyed gas can be increased under the same energy consumption, or the energy consumption is reduced under the condition of keeping the same flow, so that the overall conveying efficiency is improved.

The invention relates to the technical field of constructional engineering, and provides a wall defect detection device for high-rise building wall evaluation, which comprises an L-shaped support frame, a driving mechanism is arranged at the rear end in the L-shaped support frame, the driving mechanism comprises a servo motor I, the front end of the servo motor I is fixedly connected to the middle of the rear end of the L-shaped support frame, and the front end of the servo motor I is fixedly connected to the rear end of the L-shaped support frame. The outer side of the threaded rod is in threaded connection with a sliding block, the outer side of the first connecting rod is rotationally connected with a connecting plate, the upper portion in the connecting plate is rotationally connected with a first rotating rod, the front portion of the outer side of the first rotating rod is rotationally connected with a vertical plate, the bottom end of the vertical plate is fixedly connected with a transverse plate, and the middle of the top end of the transverse plate is fixedly connected with an infrared thermal imager. The wall body can be scanned in the vertical direction through the driving mechanism, meanwhile, the motion range in the vertical direction can be adjusted according to the height of the wall body so as to meet various detection requirements, the situation that the scanning range needs to be increased by increasing the distance from the wall body is avoided, and then the situation that imaging is not clear when the distance is long is avoided.

The present invention relates generally to elastomeric compositions comprising at least one sp2-hybridized carbon allotrope and a 2, 5-disubstituted pyrrole derivative, preferably provided in the form of a preformed adduct, processes for their preparation and tires comprising such elastomeric compositions. The invention also relates to adducts between said pyrrole derivatives and sp2 hybrid carbon allotropes and to processes for their preparation.

The invention discloses an integrated system of hydrogen injectors and a hydrogen gas rail of a hydrogen internal combustion engine. The integrated system comprises the hydrogen gas rail, the multiple hydrogen injectors and a control system. The hydrogen gas rail is communicated with a hydrogen gas supply system; the multiple hydrogen injectors are integrated with the hydrogen gas rail, obtain hydrogen from the hydrogen gas rail and are used for injecting hydrogen into multiple air cylinders of the internal combustion engine; and the control system is in electrical data connection with the hydrogen gas rail and the plurality of hydrogen ejectors. According to the integrated system of the hydrogen injectors and the hydrogen gas rail of the hydrogen internal combustion engine, the hydrogen gas rail and the multiple hydrogen injectors are integrated, in this way, the combustion efficiency can be improved, emission can be reduced, and technical support is provided for development of the hydrogen internal combustion engine.

A wind turbine blade made of basalt carbon fiber composite variable density material combination, including at least one blade unit assembled along the length direction of the blade, the density gradient increases from the blade tip to the blade root through the gradient distribution of material density and / or the gradient distribution of hollow structure, and adjacent blade units are detachably connected through non-threaded connection structure. The modular design of the blade solves the problem of land transportation of oversized blades, and the non-threaded connection (hand disassembly) improves the efficiency of on-site installation and eliminates the risk of thread loosening. Lightweight blade tip reduces starting torque, facilitates handling and assembly, and improves wind speed and power generation efficiency.

A motor assembly includes an electric motor and an overrunning clutch wherein a shaft of the overrunning clutch is adapted to engage with an external engine, the shaft is connected to an inner member of the overrunning clutch, and the outer member of the overrunning clutch is adapted to engage with a rotor shaft of the electric motor.

The invention discloses a natural gas pipeline flow measurement method and system based on ultrasonic measurement, and relates to the technical field of natural gas pipeline flow measurement. Processing the acquired data based on the first compensation; and monitoring and managing data transmission. According to the natural gas pipeline flow measurement method based on ultrasonic measurement, the upstream straight pipe section and the downstream straight pipe section are installed, and the flow adjuster is properly adjusted, so that the measurement stability is ensured. By combining the instantaneous flow velocity, pressure and temperature data, the beneficial effect of monitoring the dynamic flow in real time is achieved, and the measurement result has higher adaptability and real-time performance. Multi-parameter compensation and data processing enable data processing to be intelligent, and it is ensured that an output result has high precision. According to the method, better effects are achieved in the aspects of improving application adaptability and safety and reducing the influence of the environment on equipment.

The invention relates to the technical field of pecan prevention and treatment, in particular to a bactericide composition for preventing and treating pecan root rot and application of the bactericide composition. According to the technical scheme, the bactericide composition comprises a component A, a component B and a component C in percentage by weight, the bactericide composition of the component A is suitable for treating slight or preventive root rot, the bactericide composition of the component B is suitable for treating medium-degree root rot, and the bactericide composition of the component C is suitable for treating severe or refractory root rot. According to the severity of the illness state, corresponding bactericide components are selected for root irrigation treatment. According to the bactericide composition disclosed by the invention, through specific proportioning and component selection, the survival and reproduction of pathogenic bacteria can be reduced aiming at the pathogenic bacteria of the pecan root rot, so that the occurrence and spreading of diseases are controlled.

This invention relates to the field of sensing materials technology, specifically disclosing a cellulose-based conductive hydrogel material for ascorbic acid detection, its preparation method, and its applications. This hydrogel uses TEMPO oxidized cellulose nanofibers (TOCNF) as a biocompatible matrix. By introducing Cu-BTC / CNT composite nanoparticles, a three-dimensional conductive network with both high electrochemical activity and structural stability is constructed. While retaining the biocompatibility and flexibility of cellulose, it exhibits particularly high sensitivity and selectivity in detecting small biomolecules such as ascorbic acid, with short response time and good stability. This method achieves synergistic optimization of the composite material's structural uniformity and functionality without relying on complex molding processes. Experimental results show that the conductive hydrogel prepared by this invention possesses good mechanical properties and biocompatibility, exhibiting high sensitivity and stability in biosensing fields such as ascorbic acid detection, providing a novel high-performance material basis for flexible biosensors.

The utility model relates to the technical field of anchor rod steel bar construction, and particularly discloses a shaped anchor rod steel bar connecting structure which comprises a connecting main body, a plurality of fixing holes used for fixedly connecting anchor rod main bars are formed in the two ends of the connecting main body respectively, and the connecting main body comprises two connecting split bodies. The two connecting split bodies are fixedly connected through a connecting structure. The two ends of the connecting body are provided with the fixing holes used for being connected with the main reinforcements, connection is conducted in a threaded mode, tight combination of the reinforcements and the connecting body is facilitated, one section of anchor rod and the other section of anchor rod are connected in a straight thread mode through the connectors and the connecting holes arranged on the connecting body, meanwhile, the shaped connecting body can be subjected to factory-like batch production, and production cost is reduced. The problems of large anchor rod welding amount, complex construction procedures and the like are effectively solved, and the advantages of green construction, low environmental influence, reduction of construction procedures, improvement of labor production efficiency and the like are achieved.

The invention discloses a nickel removal method for anodic aluminum oxide production, which comprises the following steps: S1, an aluminum alloy material containing nickel impurities is soaked in a pretreatment solution, and the pretreatment solution comprises an acid solution, a surfactant, a chelating agent and water; s2, the soaked aluminum alloy material is put into a solution containing an oxidizing agent to be subjected to oxidation treatment; s3, after oxidation treatment, the aluminum alloy material is transferred into a cleaning tank containing an efficient adsorbent so as to remove free nickel ions; and S4, the cleaned aluminum alloy material is subjected to water washing and drying treatment, and the nickel removal process is completed. According to the nickel removal method for anodic aluminum oxide production, the used chemical reagents are common industrial chemicals with reasonable prices, the treatment process is simple and easy to implement, the cost is low, meanwhile, the removal rate of nickel impurities is effectively increased, and the influence on the environment is reduced.

The utility model belongs to the technical field of plastic processing, and particularly discloses a waste plastic crushing mechanism which comprises a supporting assembly, a driving assembly is arranged on the side wall of the supporting assembly, a crushing assembly is arranged at the top of the driving assembly, and a sound absorption assembly is arranged in the crushing assembly. According to the waste plastic crushing mechanism, through combined application of accessories, a plurality of shaft rods arranged in the groove body are arranged on the side wall of the crushing assembly, in the waste plastic discharging process, rotating force can be generated during collision, the rotating force is matched with the waste plastic to roll and fall, the waste plastic is crushed, and the crushing efficiency is improved. And secondly, a sound absorption assembly is further arranged in the crushing bin, and noise reduction and environmental influence in the waste plastic crushing process can be reduced by means of a built-in sound absorption plate while crushing of the waste plastic by the crushing rollers is not affected.

The utility model relates to the production and processing technology field of silk fabric, disclose a kind of mildew-proof equipment for silk fabric production, including treatment jar, and the connecting box is fixedly connected on the surface of treatment jar, and the connecting box is connected with the inside of treatment jar, and the opening is vertically provided on the surface of treatment jar, and the base is fixedly connected at the bottom of treatment jar, and the rotary frame is rotatably connected in the inside of treatment jar, and the rotary frame surface is provided with multiple grooves, and multiple grooves are evenly distributed in rotary frame surface camber place in annular shape, and the rotating mechanism that rotates rotary frame is arranged in the inside of treatment jar, and drying mechanism is arranged in the inside of treatment jar.The utility model is provided with multiple rotary table, and it is convenient to place silk fabric, and it is also convenient to place silk and convey to the inside of treatment jar and connecting box, and then cooperate with the setting of drying mechanism and multiple ultraviolet lamps, it is convenient to carry out mildew-proof treatment to silk, to improve the use effect of the device.

The present invention relates to a food packaging material, to a method for producing a food packaging material and to the use thereof. The food packaging material of the present invention comprises (i) a paper substrate having a first side and a second side, the second side being opposite the first side wherein the paper substrate is impregnated with a composition comprising a grease barrier precursor, and (ii) a barrier layer coated onto at least the first side of the impregnated paper substrate, the barrier layer comprises a polymer wherein the total amount of perfluoroalkyl species and polyfluoroalkyl species in the packaging material does not exceed 20 ppm based on the total weight of the packaging material.

The invention relates to the technical field of degradable materials, in particular to degradable double-sided leather and a preparation method thereof, and the degradable double-sided leather comprises the following components: (1) a substrate; (2) a silica gel coating, wherein the silica gel coating comprises 40-60 parts by weight of polydimethylmethylvinylsiloxane; 20 to 40 parts by weight of polycaprolactone modified polydimethylsiloxane; 10 to 30 parts by weight of polylactic acid grafted polysiloxane; 2 to 5 parts by weight of vinyl trimethoxy silane; 0.5-2 parts by weight of a platinum catalyst; 3-8 parts by weight of nano silicon dioxide; 1-5 parts by weight of a degradable starch-based toughening agent; 0.1 to 0.5 part by weight of trimethyl octadecyl ammonium chloride; 0.5 to 2 parts by weight of cellulose nanocrystals; 0.5-2 parts by weight of a natural plant oil-based matting agent; 0.1 to 0.5 part by weight of a bio-based dispersant; and (3) the weight loss rate of the surface treatment layer in 180 days exceeds 95%, which is far better than that of the traditional degradable material.

To provide a metal recovery method that has a low environmental impact and that can achieve metal recovery at low cost and with high efficiency. A metal recovery method including: mixing a liquid containing a metal ion with a yeast to adsorb the metal ion by the yeast in the resulting mixed liquid; separating the yeast from the mixed liquid obtained in the adsorption process; and recovering the metal ion from the yeast separated in the separation process, wherein the metal ion to be adsorbed by the yeast in the adsorption process is a rare earth ion and / or a precious metal ion.

The invention discloses an energy-saving methanol-to-hydrogen methanol evaporation system and process, and relates to the technical field of new energy, the energy-saving methanol-to-hydrogen methanol evaporation system comprises a water tank and a circulating pump, the circulating pump is connected with a methanol evaporation device through a connecting pipe, the methanol evaporation device comprises an outer cylinder and a fin heat exchange pipe assembly, and an outlet of the fin heat exchange pipe assembly is connected with a steam generator and a solar device. The solar device water outlet is connected with the water tank. The energy-saving methanol-to-hydrogen methanol evaporation system and the energy-saving methanol-to-hydrogen methanol evaporation process are simple and easy to implement, low in investment cost, safe and convenient to operate, extremely small in environmental influence, very high in practicability and good in application prospect, are provided with double heating systems, and adopt negative-pressure low-temperature evaporation, so that the energy-saving methanol-to-hydrogen methanol evaporation system and the energy-saving methanol-to-hydrogen methanol evaporation process are environment-friendly. An energy-saving solar heat supply methanol heating system device and process are used as a main part, and when solar energy is insufficient, a steam generator heat supply methanol evaporation device and process are used as an auxiliary part.

The present invention provides a beam pumping unit rapid random balancing device, which comprises a balancing block, a hydraulic bolt assembly, a lower slide rail, a screw and a screw seat, wherein the balancing block is connected to the upper slide rail through the hydraulic bolt assembly, the balancing block and the upper slide rail form a moving part, the upper slide rail is provided with the screw seat, the upper slide rail is sleeved on the lower slide rail, the lower slide rail fixes the upper slide rail, the screw is threaded into the screw seat, and the screw seat drives the upper slide rail to move. The beam pumping unit rapid random balancing device has no safety hazards such as high altitude, unstable operation, crank rotation, etc., and is fast and convenient, accurate in adjustment, does not stop the well, and has zero cost.

This invention relates to a food packaging material and a method for manufacturing the food packaging material. The food packaging material of this invention comprises a paper substrate having a first side and a second side, the second side being opposite to the first side, wherein the paper substrate is coated with a coating on at least the first side or the second side, the coating comprising wax and a copolymer selected from styrene-butadiene copolymers and / or styrene-acrylic copolymers.

The invention discloses a network device, a computer networking method and a computer readable storage medium. Techniques are described for classifying packet flows into different paths of a computer network based at least in part on an energy cost of each of the different paths. In one example, a network device determines a weighted equal cost multipath (wECMP) cost for each of different paths on which packets are forwarded. The different paths may include, for example, different links of different interfaces of the network device, different links connected with the network device, or an aggregated bundle of Ethernet links. The network device determines an energy cost for each of the paths. The network device modifies the wECMP cost for each path based at least in part on the energy cost of the path to obtain a modified wECMP cost. And the network equipment carries out load balancing on the packet on the path according to the modified wECMP cost.

The utility model discloses a parking space detector, relates to the parking space video pile technology field, and comprises a base plate, the upper end of the base plate is movably connected with a mounting plate, two sides of the upper end of the base plate are fixedly connected with first fixing assemblies, and the upper end of the mounting plate is rotatably connected with a rotary table. By adopting the structure, compared with a monocular video pile, the binocular video pile has the advantages that the binocular vision can provide richer and more accurate information, the parking space state can be more effectively detected, the identification accuracy is greatly improved, the higher identification accuracy can be kept even in the environment with uneven or variable light irradiation, and the parking space identification efficiency is improved. The circuit with ultra-low power consumption and the optimization algorithm enable a battery in a power supply module of the device to continuously run for 3 years, the maintenance cost of the device and the environmental influence caused by frequent battery replacement are reduced, the battery is difficult enough and does not need to be connected with the mains supply, and the device can recognize the state of the parking space and meanwhile can effectively improve the working efficiency of the device due to binocular vision and the optimization algorithm. And collecting license plate information of the vehicle.

The present invention relates to a lubricant composition comprising water and, relative to the total weight of the lubricant composition, from 1% to 60% by weight of a polyalkylene glycol, from 0.1% to 30% by weight of an alkoxylated fatty alcohol, from 0.1% to 30% by weight of a preservative system comprising at least one acid and at least one base. The invention also relates to the use of the lubricant composition according to the invention for metal working.

The invention relates to a technology and system equipment for preparing a carbon source from food waste. The technology comprises the following steps: processing the food waste through a protein refining machine to obtain protein food waste and vegetable and fruit staple food food waste; performing liquid emulsification and solid liquefaction on vegetable and fruit staple food type food residues through a food residue liquefaction device to prepare carbon source primary pulp; the carbon source primary pulp is subjected to demulsification and small molecularization and then is separated into grease, organic pulp residues and crude carbon source liquid through a three-phase centrifugal machine, the organic pulp residues are used for manufacturing insect feed or conducting solid hydrolysis again to manufacture the carbon source primary pulp, and the crude carbon source liquid is sequentially subjected to denitrification catalysis, suspended matter purification extraction and blending stabilization to obtain the zero-emission carbon source. According to the scheme, through the integrated design, on-site treatment and 4S full-amount recycling of the food waste are achieved, the treatment efficiency is improved, environmental pollution is reduced, self-balancing treatment of the food waste is achieved, and good social and economic benefits are achieved.

The invention relates to the field of steel structure surface coatings, and discloses cold spraying powder for steel structure surface repair and application of the cold spraying powder, the cold spraying powder comprises 50-65 wt% of Al-Zn alloy, 20-35 wt% of Cu and 15-30 wt% of Al2O3, and the cold spraying powder is applied to field repair of power transmission and transformation equipment. A coating prepared from the cold spraying powder is good in protection effect, small in environmental influence in the spraying process and good in directionality.

The invention relates to a metal surface microstructure processing method based on biological liquid microjet. The metal surface microstructure processing method comprises the following steps: (1) carrying out enlarged culture on microorganisms; (2) clamping the metal element; and (3) processing a surface microstructure: pressurizing the supernatant of the culture solution, spraying the pressurized supernatant to the surface of the material by a fine nozzle at a certain speed, reacting metal in a jet flow field with the high-oxidability supernatant, converting the metal into ions, and dissolving the ions into the supernatant to remove the material, and the preparation of the textured surface is completed through the relative movement of the biological liquid micro jet flow and the surface to be machined and selective etching. And (4) re-oxidizing the culture solution. According to the method, a culture solution rich in high-oxidability ions is continuously converted by utilizing the metabolic characteristic of microorganisms, the high-oxidability culture solution is sprayed out through a micro-jet after being accelerated and pressurized and etches a metal surface material, and a flow field of high-energy micro-jet and the culture solution with the etching characteristic cooperate to directly machine a microstructure on the surface. The relative movement of the nozzle and the surface of the workpiece can realize the processing of large-area plane and curved surface microstructures.