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245 results about "Aerosol" patented technology

An aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas. Aerosols can be natural or anthropogenic. Examples of natural aerosols are fog, dust, forest exudates and geyser steam. Examples of anthropogenic aerosols are haze, particulate air pollutants and smoke. The liquid or solid particles have diameters typically <1 μm; larger particles with a significant settling speed make the mixture a suspension, but the distinction is not clear-cut. In general conversation, aerosol usually refers to an aerosol spray that delivers a consumer product from a can or similar container. Other technological applications of aerosols include dispersal of pesticides, medical treatment of respiratory illnesses, and combustion technology. Diseases can also spread by means of small droplets in the breath, also called aerosols (or sometimes bioaerosols).

PM2.5 concentration prediction method, equipment, medium and product

The invention discloses a PM2.5 concentration prediction method and device, a medium and a product, and relates to the technical field of atmospheric environment monitoring and deep learning prediction.The method comprises the steps that laser radar vertical profile data containing extinction coefficients and depolarization ratio vertical profiles and a scalar time series data sequence are obtained; converting the laser radar vertical profile data sequence into a vertical sequence containing position information at any moment; adopting a multi-channel spatial feature extraction model, and obtaining a multi-channel spatial feature vector based on the vertical sequence; and after the scalar time sequence data sequence and the multi-channel spatial feature vector are spliced to obtain a fused feature vector, a PM2.5 concentration prediction value is obtained by adopting a time sequence prediction model. According to the method, the technical pain point caused by the fact that aerosol types cannot be distinguished and'high altitude-ground 'cross-layer physical association cannot be captured in the prior art is solved, so that accurate and robust prediction of the PM2.5 concentration on the ground is realized under complex weather conditions such as sand and dust transportation and boundary layer evolution.
Owner:BEIJING INST OF TECH

Method and system for dynamically monitoring and checking cultivated land resources based on remote sensing data

The invention discloses a remote sensing data-based cultivated land resource dynamic monitoring and checking method and system, and the method comprises the steps: introducing atmospheric scattering parameter estimation in an atmospheric correction process, carrying out the refined estimation of the atmospheric path radiation through combining with the water vapor content and aerosol concentration, and optimizing the atmospheric correction parameters, thereby achieving the dynamic monitoring and checking of cultivated land resources. And the interference of the atmospheric effect on the surface reflectance is effectively weakened. Spectral response function matching and spectral feature standardization processing are implemented, and a spectral difference correction model is constructed, so that the spectral features of the multi-temporal images tend to be consistent. The spectral deviation caused by atmospheric condition fluctuation is remarkably reduced, and the comparability of spectral response between images is improved, so that the accuracy and the stability of cultivated land change detection are improved. And finally, change feature extraction and region identification are performed on the basis of spectrum consistency enhancement, so that the actual change condition of cultivated land resources can be reflected more truly, misjudgment caused by atmospheric noise is reduced, and the reliability of a dynamic monitoring result is enhanced.
Owner:浙江兴农土地勘测规划设计有限公司

Method for adaptively reconstructing NDVI missing value

The invention discloses a method for adaptively reconstructing an NDVI (normalized difference vegetation index) missing value, which belongs to the technical field of data missing value reconstruction, and is characterized in that an NDVI time sequence is decomposed into trend, season and abnormal components through dynamic Kalman filtering to identify abnormal observation caused by factors such as cloud and aerosol, and reconstruction is completed by using a space-time low-rank structure. Compared with a traditional method, the method can generate a high-quality NDVI time sequence without external quality information, is suitable for observation products from different satellite sources, and further provides support for continuous monitoring and accurate description of long-term vegetation dynamics.
Owner:YANTAI RES INST OF CHINA AGRI UNIV

Salt mist atmosphere concentration control method, device and system

The invention discloses a salt mist atmosphere concentration control method, device and system. The method comprises the following steps: setting a reference parameter corresponding to a target salt mist concentration; generating a salt mist atmosphere and collecting a real-time physical quantity of the salt mist atmosphere; calculating a real-time moisture absorption growth factor of the salt mist atmosphere particles according to the real-time moisture absorption factor, the real-time relative humidity and the real-time particle size distribution; calculating the real-time concentration of the salt mist atmosphere based on a mixed aerosol light scattering model in combination with a real-time extinction coefficient, a real-time scattering phase function and a real-time moisture absorption growth factor; and in response to deviation of the real-time concentration from the target salt mist concentration, generating and executing a regulation and control instruction based on a multi-physical-quantity coupling regulation and control model to regulate the generation rate and the humidity compensation amount of the salt mist atmosphere until the real-time concentration is stabilized in a preset range of the target salt mist concentration. Through a multi-physical-quantity coupling regulation and control mechanism, the problems of low precision and slow dynamic response in traditional salt mist concentration control are solved, and an accurate salt mist atmosphere control scheme is provided.
Owner:SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP

Lightweight cloud-aerosol vertical structure comprehensive sounding device

The present application belongs to the technical field of atmospheric environment monitoring and cloud and fog microphysical observation, and particularly relates to a lightweight cloud and fog vertical structure comprehensive sounding device, comprising: a device main body; a temperature and humidity measuring module arranged on the outside of the device main body; a water vapor measuring module arranged on the outside of the device main body; a holographic particle measuring module arranged on the outside of the device main body; a navigation positioning module; a data processing system arranged in the inside of the device main body, the data processing system being used for receiving and storing temperature, humidity and air pressure, water vapor content and cloud and fog particle holographic image data. The present application realizes synchronous measurement of cloud and fog temperature, humidity, air pressure, water vapor and cloud and fog particle microphysical parameters, has simple device structure, can be carried on sounding balloons and unmanned aerial vehicles and other platforms to realize flexible and refined measurement of cloud and fog vertical structure, and has wide application prospects in the fields of cloud and precipitation physical scientific observation, artificial cloud and fog reduction effect evaluation and cloud parameter remote sensing product quantitative test.
Owner:NAT UNIV OF DEFENSE TECH

A method and system for intelligent weather image acquisition and weather image recognition

This invention discloses a method and system for intelligent weather image acquisition and recognition, specifically relating to the field of weather image recognition technology. It involves continuous polarization imaging of the sky region while simultaneously acquiring spatial attitude and temporal information; preprocessing the polarization image data and extracting Stokes parameters to obtain standardized sky polarization light field data; then using a theoretical Rayleigh scattering model to analyze the polarization degree distribution pattern at different wavelengths to obtain theoretical sky polarization pattern characteristics; based on the polarization light field data, identifying the spatial distribution of actual clouds, aerosols, and haze in the sky to form actual atmospheric composition distribution characteristics; extracting anomalous polarization regions through difference analysis between theoretical and actual characteristics, and accurately classifying halo polarization anomalies and scattering polarization anomalies based on geometric and spectral characteristics; generating ultralocal weather change early warning signals based on the classification results; thus improving the accuracy and real-time performance of early warnings for ultralocal anomalous weather phenomena.
Owner:BEIHAI FORECASTING CENT OF STATE OCEANIC ADMINISTRATION ((QINGDAO MARINE FORECASTING STATION OF STATE OCEANIC ADMINISTRATION) (QINGDAO MARINE ENVIRONMENT MONITORING CENT OF STATE OCEANIC ADMINISTRATION))

An on-line enrichment detection system and method for particulate and dissolved contaminants in water

The application discloses an online enrichment detection system for particles and dissolved pollutants in water, which comprises a fly ash enrichment cavity, an interior of which is used for containing water, and a fly ash enrichment area between a liquid surface of the water and a top surface of the fly ash enrichment cavity; a bubble generating device arranged in the water in the fly ash enrichment cavity and used for generating bubbles for enriching particles and dissolved pollutants in the water; a gas sweeping device used for sweeping pure gas into the fly ash enrichment area and carrying away fly ash generated by the breaking of the bubbles; and a fly ash aerosol detection device used for detecting the concentration or particle size distribution of the particles in the fly ash and qualitatively and quantitatively analyzing the dissolved pollutants. The system can reliably detect low-concentration particles with a particle size of 6 nm or below in the water online, and qualitatively and quantitatively analyze the dissolved pollutants, so as to provide more accurate real-time water data for advanced chip manufacturing processes, environmental water detection, drinking water detection and industrial wastewater detection. The application further discloses an online detection method for particles and dissolved pollutants in water.
Owner:FUDAN UNIVERSITY

A deep learning-based organic aerosol concentration calibration method

PendingCN122306664AHigh quantitative accuracyImprove robustnessParticulatesTerm memory
This invention relates to the field of atmospheric particulate matter analysis and discloses a deep learning-based method for calibrating organic aerosol concentrations. This invention addresses the technical problems in existing organic aerosol concentration calibration techniques, such as insufficient utilization of multi-source information, inadequate use of temporal evolution information, and fixed feature fusion methods lacking dynamic weight adjustment. By leveraging multi-source observation vectors, it fully utilizes observation information from different physical properties to establish a stable nonlinear mapping relationship under complex atmospheric conditions and mixed aerosol backgrounds. Through multi-source observation features and historical state features, the model can characterize the dynamic evolution of organic aerosol concentrations. Employing a bidirectional long short-term memory network and SE attention mechanism to process multi-source observation features and historical state features, it can automatically learn and dynamically adjust the importance weights of feature channels, effectively suppressing noise and redundant feature interference. Furthermore, it utilizes forward and backward time-series modeling to fully capture the contextual relationships between consecutive time points.
Owner:BEIFANG UNIV OF NATITIES

Efficient mixing tank for processing spray

The utility model belongs to the technical field of spray processing, and particularly relates to an efficient mixing tank for spray processing, which comprises a tank body, a transparent window is arranged on the side wall of the top end of the tank body; a driving assembly is arranged at the top of the tank body; the driving assembly comprises a rotating cylinder; the outer wall of the bottom end of the rotating cylinder is rotationally connected to the inner wall of the top of the tank body; a stirring rod is slidably connected to the inner wall of the rotating cylinder; the side wall of the bottom of the stirring rod is fixedly connected with a round rod; a support frame is fixedly connected to the bottom of the inner wall of the tank body; the top of the supporting frame is fixedly connected with a fixing block. Guide plates are hinged to the middles of the fixing blocks. The round rod slides at the top of the guide plate; the middle of the supporting frame is slidably connected with the rectangular plate, the stirring rod is driven by the driving assembly to stir the spray in the tank, when the stirring rod rotates, the round rod is driven to slide along the guide plate, and due to the inclination of the guide plate, the stirring rod can reciprocate up and down, so that the stirring rod can stir the spray horizontally and vertically at the same time, the layering probability is reduced, and the mixing efficiency is improved.
Owner:东莞市赛亚气雾剂有限公司

Ozone precursor monitoring method and system based on two-channel differential absorption spectrum and nonlinear inversion, terminal and storage medium

The invention relates to the technical field of differential absorption spectrum inversion, and discloses an ozone precursor monitoring method and system based on a two-channel differential absorption spectrum and nonlinear inversion, a terminal and a storage medium, the method comprises the following steps: synchronously obtaining a target spectrum and a reference spectrum of a target area to calculate a multiband atmospheric differential optical thickness; building a combination model based on the difference optical thickness of each wave band, dividing a fitting window, and obtaining the difference inclined column concentration through multi-angle fitting; and inverting a vertical concentration distribution profile of the ozone precursor by using different sensitivities in combination with a radiation transmission model and a logarithmic space iterative inversion algorithm. According to the invention, through a high-performance dual-channel spectrometer observation system and a high-precision nonlinear inversion algorithm, high-spectral-resolution measurement of ultraviolet-visible light full wavebands is realized, logarithmic space processing is introduced in inversion, the inherent problems of strong nonlinearity and large dynamic range of a vertical profile of aerosol and trace gas are effectively solved, and the measurement accuracy is improved. And the measurement precision and stability are improved.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

A photovoltaic power station photovoltaic power prediction method and system

The application provides a photovoltaic power station photovoltaic power prediction method and system. Among them, a cloud layer movement time sequence library is constructed based on historical cloud charts, and a nonlinear model of cloud speed and output attenuation is established. The light sensor array monitors the cloud layer thickness and aerosol density in real time, combines the model to calculate the shadow area light intensity attenuation gradient, and predicts the remaining time of the cloud group reaching the core area. According to the remaining time, the power prediction confidence interval is divided, the satellite data is input into the multi-scale meteorological fusion architecture, and the meteorological feature extraction path of the attention mechanism is adjusted based on the cloud density. The ground reflectivity correction value calculated by fusing the light sensor scattering data is used to generate a short-term power prediction sequence of the sudden cloud layer scene. The sequence is input into the energy management system, combined with the reactive power compensation parameters of the grid-connected point voltage deviation and the grid rules, and the dual-objective scheduling instructions of active and reactive power are output. The technical scheme provided by the application improves the cooperative scheduling accuracy of the photovoltaic power station under the sudden change of the cloud layer.
Owner:WUHAN FENGLING TECHNOLOGY CO LTD

Decorative holder for air freshening products for use in cars

The present design consists of a decorative holder for air freshening products for use in cars; it is designed to be mounted on a vehicle and is overall spherical, featuring three holes arranged in an inverted triangle formation, along with a square-shaped hole at the top to provide amusement for the driver; the parts shown by means of broken lines in the reproductions are not part of the claimed design; 1.1 perspective; 1.2 front; 1.3 back; 1.4 top; 1.5 bottom; 1.6 left; 1.7 right.
Owner:POYUM INC

Sampling device for spray production detection

The utility model belongs to the technical field of spray production, and particularly relates to a sampling device for spray production detection, which comprises a sampling barrel, the inner wall of the end part of the sampling barrel is fixedly connected with a sampling pipeline; the side wall of the sampling pipeline is fixedly connected with a discharging pipe; an air hole II is formed in the end part of the sampling barrel; the other end part of the sampling barrel is slidably connected with a pull rod in a penetrating manner; the end part of the pull rod is fixedly connected with a piston block; the piston block is in piston connection with the inner wall of the sampling barrel; a plurality of groups of air holes I are formed in the outer edge part of the piston block; the outer wall of the discharging pipe is fixedly connected with a fixing plate. The bottom of the fixing plate is fixedly connected with an elastic telescopic rod; the bottom of the elastic telescopic rod is fixedly connected with a supporting plate, the piston is moved by pulling the pull rod, the medicament can be sucked out, the medicament flows into the sampling tank through the discharging pipe, the fixed plate, the elastic telescopic rod, the supporting plate and the friction pad are mutually matched, the sampling tank can be quickly replaced, the sampling device does not need to be repeatedly moved for material taking and discharging during multiple times of sampling, and the convenience is improved.
Owner:东莞市赛亚气雾剂有限公司

Smoke device for supplying oil through pipeline

The utility model discloses a smoke device using a pipeline to supply oil, which comprises an oil supply pipeline, the oil supply pipeline is provided with a liquid inlet and a liquid outlet, the liquid inlet is used for leading smoke liquid into the oil supply pipeline, the liquid outlet is provided with a hydraulic switch, and the hydraulic switch is used for controlling the opening and closing of the liquid outlet; the smoke generator is provided with a smoke generating cavity, the smoke generating cavity is provided with a lead-in port and a smoke exhaust port, and the lead-in port is used for being communicated with the liquid outlet when the hydraulic switch is turned on and used for guiding the smoke liquid to enter the smoke generating cavity; the heating piece is used for heating the smoke liquid in the smoke generation cavity to generate smoke, and the smoke exhaust port is used for guiding the smoke out. Oil is supplied to the smoke generating cavity in a concentrated mode through an external oil source, the number of smoke storage pieces and the number of oil well pumps are reduced, the size of the whole device is indirectly reduced, and meanwhile due to the fact that the number of the oil well pumps is reduced, generated noise is reduced.
Owner:灵感界限科技(广州)有限公司

Multi-sensor pyrolysis particle fire detection control system and device

The invention relates to the technical field of fire detection, and discloses a multi-sensor pyrolysis particle fire detection control system and device, and the system comprises a power supply and signal coupling module, a dielectrophoresis modulation detection cavity module, a multi-dimensional environment sensing module, a central processing unit and an execution module. The power supply and signal coupling module extracts a high-frequency conducted interference signal of a power supply circuit and generates a high-voltage driving signal and a reference signal respectively; the dielectrophoresis modulation detection cavity module is used for establishing a non-uniform electric field by utilizing a high-voltage driving signal and carrying out dielectrophoresis modulation on aerosol particles passing through a detection area; the central processing unit synchronously collects the photoelectric detection signal and the reference signal, and determines the fire state by calculating a cross correlation coefficient. The device integrates the modules in a shell. According to the invention, physical and signal correlation between power supply noise and particle concentration change is established, electrical fire pyrolysis particles and environmental dust are effectively distinguished, and high-sensitivity early detection of electrical fire is realized.
Owner:SHENZHEN SHIYOU TECHNOLOGY CO LTD

Temperature sensor and monitoring method for ultrasonic spray pyrolysis for molybdenum powder production

PendingCN122329515AThermal effectPhysics
This application belongs to the field of temperature measurement and sensing technology, specifically disclosing a temperature sensor and monitoring method for preparing molybdenum powder by ultrasonic spray thermal decomposition. The sensor includes a main body, a thermal compensation channel, a porous permeation element, and first and second temperature measuring units. The thermal compensation channel is located inside the main body and is used to preheat the purging gas by conducting heat through the main body. The porous permeation element is located at the end of the main body, the first temperature measuring unit is located on its inner wall, and the second temperature measuring unit is located in the hollow cavity inside the main body. This application eliminates the supercooling error introduced by low-temperature gas through the thermal compensation channel, prevents particle scaling by utilizing the dynamic gas film formed by the porous permeation element, and constructs a differential measurement system based on dual temperature measuring units to effectively eliminate background high-temperature radiation interference, achieving highly sensitive in-situ monitoring of the thermal effect of gas-solid interface reaction in a high-temperature aerosol environment.
Owner:RISING RARE METCHEM CO LTD

Sealing negative pressure protection device for abdominal cavity hyperthermic perfusion chemotherapy in laparotomy

PendingCN121845652ASurgeryHyperthermic perfusionOccupational exposure
The invention discloses a sealing negative pressure protection device for abdominal cavity hyperthermic perfusion chemotherapy in laparotomy, and belongs to the technical field of medical instruments, the sealing negative pressure protection device comprises a protection cover body, the protection cover body is of a three-layer structure and sequentially comprises a porous breathable layer, a middle adsorption layer and a sealing supporting layer from inside to outside, and a circle of medical pressure-sensitive adhesive is arranged on the edge of the inner layer of the protection cover body; a negative pressure connector is arranged at the top of the protective cover body and used for being connected with external negative pressure equipment, two hanging rods are perpendicularly fixed to the inner layer of the protective cover body, telescopic supporting structures are fixed to the bottom ends of the two hanging rods, and a plurality of liquid inlet holes and liquid outlet holes are further formed in the protective cover body. The supporting assembly is integrated on the inner side of the protective cover body, and the problems that the compatibility of the surgical retractor and a sealing rubber strip on the edge of the protective cover body is poor, and gaps are likely to be generated are solved; by arranging the negative pressure connector and the middle adsorption layer, dual treatment of aerosol is achieved, and the occupational exposure risk of medical staff is reduced.
Owner:BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY

Electrical equipment passive wireless temperature measurement system with surface acoustic wave dual-frequency compensation and radio frequency activation

The invention belongs to the technical field of temperature detection, and particularly relates to a surface acoustic wave double-frequency compensation and radio frequency activation electrical equipment passive wireless temperature measurement system, which comprises a main controller module, and is characterized in that the main controller module is internally provided with an edge calculation module used for operating an LSTM model, predicting a temperature trend and correcting interference; the multi-mode fusion module is used for fusing multi-sensor data and dynamically correcting temperature readings through environmental parameters; the remote reporting module is used for accelerating edge calculation and ensuring that a high-temperature event signal is preferentially uploaded in combination with an LPWAN protocol; and the decision linkage module is used for optimizing linkage of the condensed aerosol fire extinguishing device and preferentially processing a high-risk area based on real-time data. According to the invention, a temperature rise trend prediction system with response time less than 5 seconds can be constructed, high precision and low delay of temperature reading in a complex environment can be realized, the uploading efficiency of high-temperature alarm information is optimized, and the response speed of a high-risk area is improved.
Owner:ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP

Perfluorohexanone and hot aerosol composite synergistic fire extinguishing method and system

PendingCN121846585AAvoid suppression peaksEnsure coordinated fire fightingFire rescueOptical radiationMultidimensional data
The invention relates to the technical field of fire extinguishing control, in particular to a perfluorohexanone and hot aerosol composite synergistic fire extinguishing method and system.The method comprises the steps that in the initial response stage of a fire, fire scene multi-dimensional data in a protection area are collected in real time; wherein the fire scene multi-dimensional data comprises flame optical radiation multi-dimensional spectrum data, heat flow field vector distribution data, oxygen concentration attenuation gradient data and environment pressure pulsation data; based on the transition intensity of a free radical characteristic peak in a flame optical radiation multi-dimensional spectrum, the turbulence characteristic of vector distribution of a heat flow field is combined. According to the method, the boundary of the Stefan flow rejection effect and the Arrhenius thermal quenching effect is quantified by calculating the confrontation loss value and the synergistic interaction compensation window, and the specific interval of which the transmission gain is greater than the confrontation loss is searched on the time axis, so that the cooling capacity of the perfluorohexanone is utilized, and the transmission gain of the perfluorohexanone is improved. The inhibition peak value on the chemical activity of the aerosol is avoided, and the synergistic fire extinguishing of the two medicaments is ensured.
Owner:ZHEJIANG FLAME SHIELD TECHNOLOGY CO LTD

An aerosol generation device with variable flue gas concentration

This application discloses an aerosol generating device with variable smoke concentration, comprising an apparatus unit for heating non-combustible cigarettes and a suction unit mounted on the apparatus unit. The apparatus unit contains a tobacco unit connected to the suction unit. The apparatus unit also includes a buffer chamber positioned between the tobacco unit and the suction unit. The buffer chamber further includes an adjustment unit for regulating smoke concentration and a pressure sensor for monitoring the pressure within the buffer chamber. The adjustment unit and the pressure sensor are electrically connected. This invention, by incorporating the adjustment unit and pressure sensor within the buffer chamber, coordinates and controls the smoke concentration within the buffer chamber, ensuring that the smoke concentration remains at a set value and guaranteeing high uniformity and consistency in the amount of smoke released during inhalation.
Owner:HUBEI CHINA TOBACCO INDUSTRY CO LTD

A method for multi-scale classification of clouds and aerosols and computer readable medium

The application provides a multi-scale classification method for clouds and aerosols and a computer readable medium. The application is applied to a spaceborne lidar, first calculates an attenuation scattering ratio profile, second calculates bidirectional transmittance of each feature level, corrects signals subjected to attenuation, further divides scales according to a multi-scale classification model, and finally calculates parameters required by classification based on various scale window sizes, so as to realize classification of clouds and aerosols and sub-type classification. It is considered that the feature level in the spaceborne lidar signal can be split, the multi-scale idea is introduced, and the accuracy of classification is improved. The application fully considers spatial correlation in the level, can effectively realize high-precision classification of mixed levels, the classification result is reasonable, and the misclassification phenomenon is less.
Owner:WUHAN UNIV

Atmospheric calibration instrument data processing method using active and passive cooperative remote sensing

The invention belongs to the technical field of remote sensing, and relates to an atmospheric calibration instrument data processing method using active and passive cooperative remote sensing, which comprises the following steps: S1, carrying a synchronous atmospheric calibration instrument integrating a multispectral polarization camera and a multi-beam laser radar on the same satellite with a high-resolution imaging load to realize complete coverage of an observation area and time-space synchronous observation, acquiring multispectral polarization data and laser radar data; s2, on the basis of laser radar data, atmospheric vertical profile parameters are inverted through a parameter inversion method; s3, based on the multispectral polarization data, combining with a ground surface polarization reflectivity model to invert aerosol related parameters; s4, performing space-time matching and uniformity judgment on the laser radar data and the multispectral polarization data, and screening effective synchronous observation points; s5, collaborative inversion and iterative optimization are carried out based on the active and passive data of the synchronous observation points, and geogas three-dimensional space-time distribution parameters are obtained; and S6, performing atmospheric correction on the remote sensing data of the high-resolution imaging load.
Owner:TIANJIN UNIV

High-air-tightness anti-aging sprayer

The utility model discloses a high-air-tightness anti-aging sprayer, and aims to provide a sprayer which has higher air tightness and is not easy to age on the surface, the key point of the technical scheme is that the high-air-tightness anti-aging sprayer comprises a bottle body, a pump body assembly, a nozzle and a pressing head, the pump body assembly is arranged at a bottle opening of the bottle body, and the pump body assembly is connected with the bottle opening by adopting a double-layer sealing structure; the double-layer sealing connecting structure comprises an external thread connecting part arranged at a bottle opening of the bottle body, and a sealing structure and a magnetic suction accessory which are arranged on the inner side of the bottle opening of the bottle body, and the sealing structure comprises an annular sealing groove formed in the bottle opening of the bottle body and a silica gel sealing ring arranged in the annular sealing groove; an annular buckle in interference fit with the silica gel sealing ring is arranged at the bottom of the pump body assembly, and a composite coating structure is further arranged on the outer surface of the bottle body.
Owner:TAIZHOU DUOMILE AGRICULTURAL MACHINERY CO LTD

System and method for detecting nutrients in suspended soil particles using deep ultraviolet nanosecond gated raman and LIBS

PendingCN122330082AParticulatesUltraviolet
This invention discloses a deep-ultraviolet nanosecond-gated Raman and LIBS detection system and method for suspended soil particulate matter nutrients, belonging to the field of optical and smart agriculture sensor technology. The system includes: a laser ejection sampling unit for in-situ soil ablation to generate aerosols; an optical tweezers unit for capturing and suspending individual soil particles; a deep-ultraviolet laser excitation unit for emitting nanosecond dual-pulse lasers to excite the same particle to generate Raman and LIBS signals; a spatial heterodyne spectral interferometry imaging unit for slitless, high-throughput coaxial signal collection and the formation of interference fringes; and a timing control unit for time-division multiplexing detection of Raman and LIBS signals through nanosecond gating. This invention eliminates matrix effects and achieves highly sensitive in-situ, non-destructive, and synergistic detection of atomic and molecular information in single soil particles. Furthermore, Raman and LIBS are used to distinguish the organic content and total composition of nitrogen, phosphorus, and potassium, enabling precise quantification of soil nutrients.
Owner:NORTHWEST A & F UNIV

Real-time fluorescent PCR instrument suitable for micro-fluidic chip

The invention discloses a real-time fluorescent PCR instrument suitable for a micro-fluidic chip, and relates to the technical field of molecular diagnosis and biological detection. The conveying module conveys the chip to a station; the rotating module drives the chip to rotate; the pretreatment auxiliary module punctures a reagent bag of the chip and heats the chip; the amplification temperature control module is used for carrying out heating and cooling circulation on the PCR reaction cavity on the chip; the fluorescence detection module is used for collecting fluorescence signals in the chip PCR reaction cavity; the pressure valve module controls opening and closing of the thin film micro valve on the chip. According to the invention, centrifugal driving, mechanical valve control, semiconductor temperature control, multi-channel optical detection and other technologies are highly integrated in a compact instrument, the physical characteristics and operation requirements of a centrifugal micro-fluidic chip are perfectly matched, full-automatic operation from an original sample to a qPCR quantitative result is really realized, and the operation efficiency is greatly improved. The operation difficulty and personal errors are greatly reduced, the aerosol pollution risk is remarkably reduced, and the detection consistency and reliability are improved.
Owner:BEIJING YIMEINUO BIOTECHNOLOGY CO LTD

Aerosol provision system

An aerosol provision system having a heating system; a power system for providing power to the heating system; and control circuitry for controlling a heating profile provided by the heating system, the control circuitry including a first sensor for measuring an output of the power system; and a second sensor for measuring an electrical property of the heating system, wherein the control circuitry controls the heating profile provided by the heating system based on measurements from the first sensor and the second sensor, and wherein the first sensor and second sensor are arranged to take measurements during periods of non-smoking.
Owner:NICOVENTURES TRADING LTD

Candida limiting amplification primer combination, kit and application thereof

The invention relates to the technical field of biology, in particular to a candida limiting amplification primer combination, a kit and application of the candida limiting amplification primer combination. According to the present invention, the primers, the reaction reagent and the reaction system are optimized, and the hydrogel limiting amplification technology is adopted to develop the limiting amplification reaction system suitable for Candida detection, and the limiting amplification reaction system is used for Candida detection, the method is simple and rapid in steps, low in equipment requirement, capable of effectively preventing and treating aerosol pollution, good in storage stability, high in sensitivity and high in specificity.
Owner:HUNAN AIWEI MEDICAL LABORATORY CO LTD

Multi-stage droplet reduction delivery device

PendingAU2025214404A1Small dropletLarge droplet
A droplet delivery device includes an ejector plate the produces a stream of droplets having a first large droplet size from a liquid supplied to the ejector plate and an impingement member that is positioned perpendicular to or at another non-parallel angle relative to an initial aerosol stream path produced from the ejector plate such that the one or more impingement members impinge the aerosol stream and reduce the size of droplets from the first larger size to one or more smaller droplet sizes.
Owner:PNEUMA RESPIRATORY INC

Aerosol trapping and killing integrated device

The utility model relates to the field of air purification, in particular to an aerosol trapping and killing integrated device which comprises a box body, an S-shaped pipe, a filter and plasma generators, the S-shaped pipe is arranged at the upper end of the box body, the filter is arranged in the box body, and two layers of plasma generators are arranged on the inner wall of the box body between the filter and the S-shaped pipe. A centrifugal fan is arranged at the lower end of the filter, a transformer is arranged in the plasma generator, a quartz medium is arranged on one side of the transformer, and a metal net is arranged on the outer wall of the quartz medium. Through the centrifugal fan, the plasma generator, the particle filter, the PLC and other components, the aerosol trapping and killing integrated device for dental diagnosis and treatment, which integrates trapping and killing functions, is developed on the basis of the composition and layout of an actual tooth diagnosis and treatment space structure; the problem that potential health hazards are caused to dental personnel due to the fact that a large number of abrasive dust suspended particles possibly carrying pathogenic microorganisms are generated in existing dental grinding diagnosis and treatment is solved.
Owner:GUIZHOU UNIV

Fireproof flame-retardant high-weather-resistant integrated marine furniture system

This invention discloses a fire-resistant, flame-retardant, and highly weather-resistant integrated marine furniture system, comprising a three-layer architecture: a basic layer, an intelligent layer, and an application layer. The basic layer consists of prefabricated functional units and quick-connect interfaces for rapid installation. The intelligent layer includes an intelligent fire prevention unit and an adaptive environment unit. The intelligent fire prevention unit automatically triggers targeted aerosol fire suppression based on dual-condition logic using temperature and smoke sensors and safety control nodes deployed in key locations, enabling early autonomous fire suppression. The adaptive environment unit learns user habits through sensors and, upon user confirmation, solidifies "context-operation" rules, achieving personalized automatic environmental adjustment. The application layer provides various interactive terminals. This system represents an upgrade from passive alarm to active fire prevention, and from manual operation to intelligent adaptation, significantly improving the safety and comfort of ship cabins.
Owner:JIANGSU YOUSENYUAN DISPLAY PROPS CO LTD