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50 results about "Cloud seeding" patented technology

Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from clouds by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical processes within the cloud. The usual intent is to increase precipitation (rain or snow), but hail and fog suppression are also widely practised in airports where harsh weather conditions are experienced.

Method for estimating non-point source pollution load of northern plain farmland area based on rainmaking experiments

The invention provides a method for estimating the non-point source pollution load of a northern plain farmland area based on rainmaking experiments, and belongs to the field of agricultural non-point source pollution loading capacity estimation. The method mainly comprises the following steps: 1), field scale: carrying out rainmaking simulated experiments, monitoring rainfall capacity, rainfall duration and runoff coefficient, monitoring pollutants of collected runoff water, mastering surface runoff and pollutant output characteristics of a farmland in a research plot, confirming a localized output coefficient, and establishing localized non-point source output characteristic database; and 2), catchment scale: establishing a perfect output model database according to related data, and carrying out non-point source pollution load model estimation. The non-point source pollution loading capacity (including surface generation loading capacity, flowing into river loading capacity and entering into receiving water loading capacity) of the farmland area is calculated according to a formula; and the spatial distribution is analyzed. According to the method, accuracy for non-point source pollution load estimation of the farmland area can be improved, and decision support is provided for non-point source pollution identification and pollution control.
Owner:BEIJING NORMAL UNIVERSITY

Method and equipment for carrying out air conditioning on natural environment by applying chimney type air guide tower

The invention relates to a method for continuously drawing humid and hot air on the ground according to the chimney effect by utilizing a chimney type air guide tower so that the humid and hot air rapidly floats to break the up-and-down convection of the humid and hot air and dry and cold air by the greenhouse effect and achieve the aims of controlling ground air temperature and humidity, reducing carbon dioxide and dust concentration in ground air and artificially raining and environmental air conditioning equipment. The application of the technology realizes the aim that people reform nature by utilizing nature. The method and the equipment can be used for controlling the temperature and the humidity of urban ground air and carrying out artificial rainfall and also used for preventing great loss on agriculture, forestry, electric industry, communication industry, and the like by natural disasters, such as strong wind, rainstorm, thunder, lightning, hail, and the like due to strongly convective weather; meanwhile, cool weather is more beneficial to the growth of crops and prevents damage by diseases and insects. In the aspect of fishery, the invention can improve the oxygen dissolving amount of a pond and prevent the generation of the phenomenon of fish dead by pond turn-over; meanwhile, cool water temperature is more beneficial to the growth of aquatic animals and plants.
Owner:胡永生

Method and device for inverting phase change process of water vapors in cloud based on ground-based microwave radiometer

A method and device for inverting a phase change process of water vapors in cloud based on a ground-based microwave radiometer are provided. The method includes obtaining the actually measured data ofa vertical detection target area of the ground-based microwave radiometer and checking data consistency; using the actually measured data and a cloud threshold to identify a mixed phase state cloud region and to calculate an air pressure profile; using the actually measured data in combination with the calculated air pressure profile, calculating each water vapor pressure profile in the cloud; and inverting the phase change process of water vapors in cloud by using a water vapor phase change model. The method solves a problem that it is difficult for a conventional dual-polarization radar toaccurately recognize a particle phase state due to a low signal-to-noise ratio and a satellite can only recognize the phase states of the water cloud and the ice cloud on to top of the cloud, and canobtain the phase change process with time and space of water vapors in the mixed phase cloud of the target region, reflects the dynamic trends of the balance between the solid, liquid, and gaseous states of water vapors in the cloud, is particularly applicable to predicting and forecasting rainfall phase states, analyzing the evolution characteristics of cloud microphysics, and determining artificial precipitation (hail prevention) cloud seeding positions and selecting right time for the job.
Owner:湖北省气象服务中心

Cloud monitoring system based on intelligent balloon group, artificial rainfall system based on intelligent balloon group and control method of artificial rainfall system

The invention discloses a cloud monitoring system based on an intelligent balloon group, an artificial rainfall system based on the intelligent balloon group and a control method of the artificial rainfall system. The control method comprises steps that intelligent balloons in the first total preset quantity are placed at different place points, and first environment parameters on intelligent balloon motion locus are respectively detected; first environment parameters of a pre-determined atmosphere area are acquired according to the first environment parameters on the intelligent balloons motion locus of the intelligent balloons in the total first preset quantity; intelligent balloons in the second total preset quantity are placed at place points which are adjusted according to the first environment parameters of the pre-determined atmosphere area, and artificial rainfall is carried out. The method is advantaged in that the environment parameters of the pre-determined atmosphere area can be acquired through the multiple intelligent balloons, the place points of the intelligent balloons and catalyst spreading positions are adjusted according to the environment parameters of the pre-determined atmosphere area, and the artificial rainfall is realized.
Owner:TSINGHUA UNIV

Electromechanical time fuse of antiaircraft gun hail-mitigating cloud-seeding round

The invention discloses an electromechanical time fuse of an antiaircraft gun hail-mitigating cloud-seeding round. The fuse comprises an upper body 1, a wind cap 2, an electromechanical timing ignition mechanism 3, a fuse body 4, a ball rotor safety and arming mechanism 5 and a booster 7, wherein the wind cap 2 covers the front end of the upper body 1, the bottom of the wind cap 2 is closed and fixed in an annular groove in the outer side of the upper body 1, the electromechanical timing ignition mechanism 3 comprises a magnetic recoil power supply and an electronic timing and ignition module,and is positioned inside a cavity of the upper body 1, the rear end of the electromechanical timing ignition mechanism 3 is adjacent to a primary-explosive-free detonator 17, the ball rotor safety and arming mechanism 5 is located inside a cavity of the fuse body 4, the top end of the ball rotor safety and arming mechanism 5 is adjacent to the primary-explosive-free detonator 17, a bulge part ofthe front end of the booster 7 is adjacent to the ball rotor safety and arming mechanism 5, the rear end of the booster 7 serves as a fuse output end, and the the booster 7 is used for initiating projectile charges. According to the electromechanical time fuse of the antiaircraft gun hail-mitigating cloud-seeding round, the timing is accurate, the manufacturability is good, and the reliability ishigh.
Owner:NANJING UNIV OF SCI & TECH

Adjustable debris flow starting simulation experiment system under combined action of rainfall and confluence

PendingCN108335612AUniform surface flowUniform foggy rainfallEducational modelsWater flowEngineering
The invention relates to an adjustable debris flow starting simulation experiment system under combined action of rainfall and confluence. The bottom of a material tank of the experiment system can bereplaced, so that not only can the matching degree of the roughness of the bottom of the tank with an original experiment soil body be ensured, but also the water permeability of the bottom of the tank can be fully considered; the width of the material tank of the experiment system can be adjusted according to the characteristics of debris flow in an area, so that the universal applicability is realized; an artificial rainfall system of the experiment system expands the continuously-varying rainfall intensity range, can fully consider the similarity between an artificial rainfall type and a rainfall process and can achieve the purpose of characterizing the corresponding encounter process by adopting rainfall, rain intensity and rainfall type; water for simulating rear confluence scour inthe debris flow starting test can be proportioned into a certain concentration, so that the similarity of experimental flow concentration is ensured; the experiment simulation device can achieve integrated control, avoid tedious steps during the experiment operation and classify experiment wastes at the end of an experiment.
Owner:JILIN UNIV

Debris flow starting test artificial rainfall simulating method

The invention discloses a debris flow starting test artificial rainfall simulating method. The adopted debris flow starting test artificial rainfall simulating system comprises an artificial rainfalldevice, a rainfall monitoring device and a control device, wherein the artificial rainfall device comprises a water tank, a water pump, a rainfall bracket and a rainfall spray head; the rainfall sprayhead is arranged on the rainfall bracket and is connected with a water tank through a water pipeline; the water tank is connected with a water pump; the rainfall monitoring device records actual rainfall capacity, soil moisture content, soil displacement of soil and the tension amount of a tension sensor, and sends the detected data to the control device; the control device judges whether a debris flow happens according to the collected data, and records the slope runoff, slope internal runoff, soil body creep deformation and the debris flow forming time when the debris flow happens. The method disclosed by the invention is simple in structure and convenient to operate, and can be used for detecting the debris flow happening process by simulating different rainfall types; the detection result is quick and accurate, and a basis is provided for predicting and forecasting debris flow.
Owner:HENAN POLYTECHNIC UNIV

Top potential energy catapult rainmaking method and system based on smart grid and hill lie

The invention relates to a top potential energy catapult rainmaking method and system based on a smart grid and the hill lie. According to the method and system, upward tracks and downward tracks of water bin type upward and downward track cars are arranged based on the hill lie, a catapult flying track and a track end fixed pulley set are arranged up the hill, track upper and lower end fixed pulleys are arranged down the hill, a cable connected with the upward track car is wound around the upper end fixed pulleys, the end fixed pulley set and the upper end fixed pulleys in sequence and then is connected with the downward track car, and the upward track car is connected with the downward track car through a cable wound around the two lower end fixed pulleys; an upward reciprocating car and a downward reciprocating car for catapulting a rainmaking fixed wing electric unmanned aerial vehicle are fixedly connected to two cable sections on the flying track respectively; the upward and downward track cars are provided with water bins and downward impact kinetic energy buffering and recovering devices; a high-level reservoir and a low-level reservoir are arranged up the hill and down the hill, wherein the low-level reservoir drives a water pump to raise water to the high-level reservoir through off-peak electricity of the smart grid, the high-level reservoir and the low-level reservoir make water flow into the water bins and receive the water from the water bins separately, the electric unmanned aerial vehicle blows off the water to the low-level reservoir from the high-level reservoir to generate electricity and charge in the period of the peak demand for electricity, and direct charging is performed through the smart grid in the period of off-peak for electricity. The Top potential energy catapult rainmaking method and system have the advantages that cost is low, applicability is high, the rainmaking effect is good, and the general problem of water lack can be solved within short term.
Owner:STATE GRID CORP OF CHINA +1

Apparatus and system for smart seeding within cloud formations

This invention consists of a unique apparatus and system consisting of devices, materials and methods specially engineered to perform high precision and smart cloud seeding by the dispersion of micro and nanoparticles of sodium chloride and similar chemistry compounds at specific locations with the purpose of rain induction and related applications. A safe and precise unmanned aerial vehicle UAV device instrumented with portable thermometer, hygrometer, barometer, anemometer and 3D visual register will scrutinize these internal cloud climate parameters. By means of these real time measurements and communications, a meteorological ground operating team is enabled to perform the data acquisition and processing from the clouds. This device and system be enabled to select the locations suitable for rain induction and perform on site accurate particulate seeding dispersion from a device mounted on the same UAV within the eligible clouds. Typical applications of this apparatus and system besides rain induction are fog condensation for airports, highways and other environments where visibility impairment may have critical consequences. This invention may also provide a valuable tool to provide solutions to control and mitigate snow, sleet and hail effects.
Owner:MARTINEZ DE LA ESCALERA LORENZO MARTINEZ +4

Amplified Relief From Drought and Famine- A Spin-Off Technology From Fossil-Fueled Climate Restoration

The invention encompasses multi-stage naturally amplified global-scale carbon dioxide capture systems combining basic capture from (CCS—carbon capture and sequestration) clean-coal-fired and CCS gas-fired power plants, CCS natural-gas reformation systems, CCS cement plants, outdoor air, CCS home and building flues, CCS incinerators, CCS crematoriums, CCS blast-furnaces, CCS kilns, CCS refineries, CCS factories, CCS oil gasification systems and CCS coal gasification systems which yield concentrated carbon dioxide, with a collective, globally distributed capture capacity of up to 3 GtC/yr, feeding the captured carbon dioxide into land-based invention stage-1 bioreactors for rapid, selective, high capacity conversion to a high-density, fast-sinking marine algae by means of accelerated photosynthesis and/or coccolithogenesis (calcification) consuming carbon dioxide as the algae bloom, and transporting a primary fraction of the stage-1 bioreactor-produced algae to seaports for seeding the oceans at regular intervals in stage-2 operations-at-sea to produce naturally amplified 14 GtC/yr algal blooms at sea, the stage-2 operations circumventing classic prior-art (and natural) ocean fertilization limits of low bloom rate, grazers eating algae seed before it blooms, interfering buoyant algal species which don't clear the photic zone to allow light penetration for multiple blooms per year, and proximal post-bloom anoxia, and reserving a secondary fraction of the stage-1 bioreactor produced algae for feeding cultures of ocean grazers contained in a second bioreactor, in which the second bioreactor produces dimethylsulfide (DMS), a natural cloud seeding agent as the bioreactor-contained ocean grazer cultures eat the secondary fraction of stage-1 original bioreactor-produced algae. A total invention CO2 capture and safe storage capacity of 17 GtC/yr (land and sea) is projected during fair-weather, and a 40% foul weather down-time allowance ensures that an average 10 GtC/yr of impact capture would result. If emissions are concurrently capped by at 12 GtC/yr by 2023, with invention-assisted reduction to 6 GtC/yr by 2050, 3 GtC/yr by 2062, and 1 GtC/yr by 2078, atmospheric CO2 will be reduced to 280 ppm by 2075. The CIP invention production of DMS (both inland invention DMS production and invention ocean-amplified DMS production following ocean-amplified algal blooming and ocean-amplified capture of atmospheric CO2) may be used to seed rain-clouds over or adjacent to semi-arid lands, enabling drought and famine relief. If the rain clouds are seeded adjacent to semi-arid lands, winds may drive the rain clouds over the drought stressed lands.
A spin-off technology includes use of excess dead bioreactor algae for agricultural soil spreads to enhance soil moisture retention—which is important in maximizing drought relief.
Owner:CLIMATE RESTORATION TECH

Evaluation method for effective catalytic range of airplane cloud seeding operation catalyst

The invention is suitable for the field of weather modification, and provides an evaluation method for the effective catalytic range of an airplane cloud seeding operation catalyst. The method comprises the following steps: installing and compiling a mesoscale numerical model WRF (weather research and forecasting); acquiring FNL data of the mode background field; setting WRF multiple nested simulation areas; acquiring a WRF high-resolution analog output field; installing a FLEXPART-WRF numerical model; preparing a list file SPECIES of physical and chemical characteristic parameters of an AgI (silver iodide) catalyst; designing a typical catalyst seeding source term input scheme; acquiring an AgI catalyst concentration simulation result; calculating the effective catalytic range. Accordingto the method, the problem about evaluation of the effective catalytic range of the catalyst based on the airplane cloud seeding operation mode is solved; the method can not only be used for guiding the operation practice and verifying effectiveness of a cloud seeding scheme, has great significance for standardizing the cloud seeding method, improving operation design, reducing operation blindnessand improving the operation effect, and can be popularized to evaluation of the effective catalytic range of other catalyst seeding modes of antiaircraft guns, rockets, ground combustion furnaces andthe like.
Owner:北京应用气象研究所

Projectile internal charging structure for preventing flame-over ignition of fuse in explosive-proof state

ActiveCN108548456AReduce structural complexitySatisfy detonation reliabilityCartridge ammunitionDetonatorCombustion
The invention discloses a projectile internal charging structure for preventing flame-over ignition of a fuse in an explosive-proof state. The projectile internal charging structure comprises an explosive-proof type fuse 5, a flame isolation part 2, propellants and explosives 3 and a charging projectile 4, wherein the explosive-proof type fuse 5 is located on the top of a projectile, the bottom end of the explosive-proof type fuse 5 is provided with a detonating tube 1, and the flame isolation part 2 is arranged between the detonating tube 1 of the explosive-proof type fuse 5 and the chargingprojectile 4 and is in close contact with the detonating tube 1 of the explosive-proof type fuse 5 and the charging projectile 4. The flame isolation part is used for isolating the fuse from leaked high-temperature and high-pressure gas caused by cracking or breaking of structures like a fuse body due to accident ignition of sensitive explosion elements like a detonator inside the fuse in the explosive-proof state, and the situation that the gas flows to the explosive loading surface of the projectile or a battle part to cause combustion and explosion by accident is prevented. The flame isolation part is in close contact with the detonating tube and the explosives in the projectile, and the occupied axial space is very small. By means of the projectile internal charging structure, safety of the projectile or the battle part is improved, and the structure is suitable for small-bore shells, especially small-bore anti-hail cloud-seeding shells with small-size and low-mass fuses.
Owner:NANJING UNIV OF SCI & TECH

Electro-climatology ion trapping artificial rainfall fresh water producing universal machine group and control system

The invention relates to an electro-climatology ion trapping artificial rainfall fresh water producing universal machine group and control system. An ozone-free high-performance negative oxygen ion generator forms a universal machine unit of the universal machine group system, a plurality of units form an artificial rainfall base, a plurality of bases form the system, and artificial and intelligent automatic control is executed. The invention belongs to an application of air ionization in the electro-climatology field and is an improvement on the traditional snowslide type ionization or plasma ionization technology 'adopted' in the United Arab Emirates 'revolutionary' artificial rainfall by adopting a new ion technology; as torrential rain falls for fifty two times in one year during the experiment in the United Arab Emirates, further improvement and innovative design are carried out in the system in the invention, the cost performance of the whole system can be greatly improved, and multiple innovative inventive concepts are adopted, for example mobile equipment substitutes or supplements fixed equipment, thus the most economical optimal control scheme is hopeful to be realized under the support of artificial intelligence, the problem that fresh water is short in the world can be effectively solved, thus the system makes major contribution to survival and development of earthman.
Owner:仇锦明

A Method for Estimating Non-point Source Pollution Load in Farmland Areas of Northern Plains Based on Artificial Rainfall Experiment

The invention provides a method for estimating the non-point source pollution load of a northern plain farmland area based on rainmaking experiments, and belongs to the field of agricultural non-point source pollution loading capacity estimation. The method mainly comprises the following steps: 1), field scale: carrying out rainmaking simulated experiments, monitoring rainfall capacity, rainfall duration and runoff coefficient, monitoring pollutants of collected runoff water, mastering surface runoff and pollutant output characteristics of a farmland in a research plot, confirming a localized output coefficient, and establishing localized non-point source output characteristic database; and 2), catchment scale: establishing a perfect output model database according to related data, and carrying out non-point source pollution load model estimation. The non-point source pollution loading capacity (including surface generation loading capacity, flowing into river loading capacity and entering into receiving water loading capacity) of the farmland area is calculated according to a formula; and the spatial distribution is analyzed. According to the method, accuracy for non-point source pollution load estimation of the farmland area can be improved, and decision support is provided for non-point source pollution identification and pollution control.
Owner:BEIJING NORMAL UNIVERSITY

Simulation method for researching biological crusts in water and soil loss situation of karst rocky desertification area

The invention discloses a simulation method for researching biological crusts in the water and soil loss situation of a karst rocky desertification area, and belongs to the technical field of environmental research. The simulation method comprises the following steps: S1, artificially cultivating moss crusts to prepare soil samples in a target area; S2, stacking the soil samples at least twice tobe put into simulation boxes; S3, taking one simulation box as a blank control group, and transplanting moss crusts on the upper top surfaces of the soil samples in the remaining simulation boxes; S4,simulating natural rainfall conditions, and carrying out alternate artificial rainfalls on the simulation boxes; and respectively collecting a runoff mud-water mixture on the surface layers of the soil samples and a bottom runoff mud-water mixture in the simulation boxes in a single rainfall process; S5, separating the mud-water mixtures, and weighing and recording the mud-water mixtures; and S6,calculating a runoff coefficient, a sediment yield specific gravity and a sediment transport modulus. The simulation method solves the problem of lack of research means for influence of biological crusts on water and soil loss in the karst rocky desertification areas at present.
Owner:GUIZHOU NORMAL UNIVERSITY
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