71 results about "Aerosol" patented technology

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.

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.

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.

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.

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.

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.

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.

This application provides a millimeter-wave cloud radar observation method and related apparatus based on multi-source data. A fused dataset is formed by real-time acquisition and preprocessing of at least one of the following: weather radar mosaic data, meteorological satellite data, ground visibility observation data, and co-located or adjacent aerosol lidar data. A preset rule set is used to determine that the current weather scene at the cloud radar station includes at least weather echo approaching, weather echo receding, local weather processes, fog, and non-precipitating clouds. Based on the identified weather scene type, the corresponding combined scanning strategy (composed of a basic scanning mode consisting of vertical top-view scanning, distance-height scanning, and three-dimensional volume scanning, and a fine scanning mode consisting of local planar horizontal scanning and layered planar horizontal scanning, combined according to preset logic) is called from a preset strategy mapping table and executed. During execution, the parameters of the fine scanning mode are dynamically adjusted based on the position and intensity information of the real-time radar echo or changes in the detection mode.

This invention provides a gas-phase method and apparatus for preparing high-purity nano-tin dioxide powder, comprising the following steps: a tin source is vaporized using mid-frequency plasma to form tin vapor; the tin vapor is reacted with oxygen in an oxidation growth zone, while simultaneously injecting gadolinium oxide nanoaggregate aerosol; and the reaction is carried out through the surface oxygen vacancies and Gd2+ of the gadolinium oxide nanoaggregates. 3+ The coordination adsorption of tin-oxygen species at specific sites induces heterogeneous nucleation, generating nano-sized tin dioxide particles. These nano-sized tin dioxide particles are then subjected to in-situ surface functionalization treatment at 20-60°C with ultraviolet light at wavelengths of 185 nm and 254 nm, followed by the introduction of ozone at a concentration of 10-100 ppm for a residence time of 60-120 s. The surface-functionalized nano-sized tin dioxide particles are collected using an electrostatic-assisted method and dried to obtain high-purity nano-tin dioxide powder. This invention refines grain size, optimizes particle dispersibility, and achieves efficient particle collection. The resulting powder possesses both ultra-fine particle size and high purity, meeting the application requirements of cutting-edge new materials.

This invention discloses a method and application for predicting the optical properties of dust aerosols, comprising: Step 1, establishing a triaxial ellipsoidal model for dust aerosol particles, obtaining the morphological and optical parameters of the dust aerosol particles as feature vectors, and establishing a dataset X; Step 2, obtaining the true values ​​of K types of optical property parameters corresponding to dataset X, and establishing a label set Y; Step 3, constructing a prediction model, which includes K parallel XGBoost-based sub-prediction modules, and training the prediction model; Step 4, testing the prediction model; Step 5, obtaining the feature vectors of the dust aerosol particles to be predicted, inputting them into the prediction model, and outputting the predicted values ​​of the K types of optical property parameters of the dust aerosol particles. This invention achieves rapid prediction of the K types of optical property parameters of dust aerosol particles through a prediction model, significantly improving the computational efficiency of dust aerosol optical properties and greatly reducing memory usage.

This invention relates to the field of flue gas purification and multi-pollutant deep synergistic removal control technology in coal-fired power plants, and particularly to a method and system for synergistic removal control of multiple pollutants in flue gas from coal-fired power plants. The method includes: acquiring polarized scattered light signals from the tail flue; inverting and extracting the spatial distribution characteristics of the cancellation coefficient to generate a transient thermodynamic density scalar field and a local thermal gradient vector matrix; setting transmission parameters based on the aforementioned matrix and outputting a sound wave sequence and a rotating radio frequency electric field to construct a dynamic equivalent acoustic metamaterial potential field to locate the three-dimensional coordinates of topological local valleys; adding latent heat-responsive microcapsules to the flue gas flow field to induce ultrafine aerosol particles to undergo condensation phase transition and expand into secondary large droplets; acquiring local transmittance jump signals to calculate the end-of-pipe dust collection electric field parameters; and collecting droplets by adjusting the electrostatic adsorption parameters of the electrodes to remove colored plume components. This invention solves the problem of abnormal colored plumes caused by ultrafine aerosols.

This invention discloses a blind-zone-free laser remote sensing system for stable boundary layer thermal material structures. The system includes a lateral scanning Raman scattering lidar receiving system with multiple lateral receiving systems, a lidar transmitting system, and a backscattering Raman scattering lidar receiving system. The lateral receiving system receives near-surface nitrogen and water vapor Raman signals and aerosol Mie-Rayleigh scattering signals, filling the detection blind zone of the backscattering lidar. The backscattering system detects signals in the upper atmosphere. The invention also discloses a blind-zone-free laser remote sensing method for stable boundary layer thermal material structures, which utilizes the lateral and backscattering systems for collaborative observation, respectively retrieving the water vapor mixing ratio, temperature, and aerosol extinction coefficient near the ground and in the upper atmosphere, and fusing them through a data stitching algorithm to obtain a blind-zone-free profile of the entire layer. This method enables refined detection of the entire layer from the ground to the upper atmosphere, continuously, with full parameters, and high spatiotemporal resolution.

The application discloses an airborne particulate matter lens-free diffraction online detection and distribution positioning method, belongs to the technical field of intelligent environment monitoring, collects aerosol diffraction images and meteorological data, constructs a diffraction spectrum meteorological space-time alignment set through timestamp alignment; extracts frequency spectrum energy distribution characteristics and ring characteristics to input a deep inversion model, introduces humidity, wind speed and temperature, combines a preset threshold correction weight, inverts particulate matter equivalent diameter distribution and concentration, generates a particulate matter basic parameter set, deduces a high-probability source area based on a concentration gradient and a meteorological wind field direction, generates an initial source area estimation map; combined with constraint conditions, a constraint type reverse trajectory tracing model is constructed to deduce a particulate matter propagation path; a concentration and position error feedback mechanism is adopted to construct a joint loss function to iteratively optimize path initial weight and source area intensity distribution, correct the propagation path and positioning, output particulate matter online detection results and high-resolution spatial distribution positioning maps, and realize accurate tracing and monitoring.

The application relates to the dust removal field and discloses a dust removal device and a dust removal system, which comprise a first cylinder, a second cylinder, a mounting frame, a plurality of insulation assemblies, a discharge electrode and a dust collecting electrode. The first cylinder is connected with an air inlet pipe, the air inlet pipe partially extends into the first cylinder, the air inlet pipe is provided with an air outlet, the air outlet is opposite to the waste gas emission direction, the insulation assemblies are fixedly installed on the peripheral surfaces of the first cylinder and the second cylinder, the two ends of the discharge electrode are respectively installed on the mounting frames at the positions of the first cylinder and the second cylinder, one end of the dust collecting electrode is connected with the first cylinder, and the other end of the dust collecting electrode, which is away from the first cylinder, is connected with the second cylinder. The application prolongs the diffusion path of waste gas and prevents dust backflow by arranging the air inlet pipe with the air outlet opposite to the waste gas emission direction; the air cavity structure is limited by the first cylinder, the second cylinder and the tubular dust collecting electrode, the high-voltage electric field is formed by combining the discharge electrode in the air cavity, and high-concentration sulfuric acid mist aerosol and solid particulate matters are synchronously and efficiently captured.

This invention discloses a test recycling device, comprising: a collector with an opening; a cover connected to the opening of the collector; a bottom through-hole provided at the bottom of the cover; and a recycling trough surrounding the bottom through-hole at the bottom of the cover. During testing, the test sample enters the collector through the bottom through-hole, collects in the collector, and then flows back to the recycling trough. This test recycling device, through the combination of the collector and the cover, and the recycling trough at the bottom of the cover, collects and gathers the liquid or powder from the aerosol packaging material test into the recycling trough for reuse in secondary testing, avoiding waste. Furthermore, the inclusion of a return flow element on the cover further improves the recycling rate.

This invention provides an alkaline dust absorption system containing sodium carbonate powder, comprising an absorption tower. The top of the absorption tower is equipped with an inlet pressure gauge, and the interior contains, from top to bottom, a dust collection mesh and a spray distribution pipe. The sides of the absorption tower are respectively equipped with a circulation pump, a dynamic wave feed pipe, a fan, and a sewage pump connected to them. Alkaline dust is introduced into the inlet of the dynamic wave feed pipe, and the interior contains, from top to bottom, a primary dynamic wave nozzle and a secondary dynamic wave nozzle. The primary dynamic wave nozzle is connected to the circulation pump via a primary dynamic wave regulating valve, and a primary dynamic wave pressure gauge is installed on the pipeline between them. The secondary dynamic wave nozzle is connected to the circulation pump via a secondary dynamic wave regulating valve. This invention employs a "two-stage dynamic wave absorption + primary spray absorption" system to achieve efficient collection and treatment of alkaline dust such as NaOH and KOH particles and aerosols generated by the alkali dissolving system.

The present application relates to the technical field of biological detection, in particular to a one-tube pathogen detection method based on PAM-Disruptor regulated CRISPR-Cas12a system, the detection method comprising: constructing a PAM regulated CRISPR-Cas system; mixing and incubating PAM-Disruptor with LbCas12a effector protein, guide RNA, fluorescent reporter, F-primer, R-primer, recombinase, single-stranded DNA binding protein (SSB), DNA polymerase and reaction buffer solution to prepare a premixed reaction solution, and then performing reaction and judgment. The present application realizes light control and non-light control dual-mode one-tube detection, effectively avoids the problems of complicated operation, cross contamination, aerosol pollution and the like caused by step-by-step reaction, and provides a new strategy for one-tube detection of pathogens.

This application discloses a vapor generation device, which includes a housing with a receiving cavity and an insertion interface located on the side wall of the housing, the insertion interface being located on the side wall of the receiving cavity and communicating with the receiving cavity. A mounting bracket is inserted into the receiving cavity and extends from the insertion interface. A clearance notch is provided on one side of the mounting bracket, extending longitudinally along the mounting bracket and reaching the first end face of the mounting bracket. A vapor forming module is located in the receiving cavity and positioned at the clearance notch. A battery is mounted on the mounting bracket and located between the vapor forming module and the display module. A control module is located in the second end of the mounting bracket and is electrically connected to the display module. The display module is located outside the housing and connected to the mounting bracket. This application has the advantages of easy assembly, reliable structure, and long service life.

The application discloses a one-pot microfluidic method for RT-LAMP-CRISPR / Cas12b on-site detection of areca yellowing virus (APV1). The application connects isothermal amplification LAMP and CRISPR / Cas12b detection in a centrifugal tube by using a sorbitol dynamic diffusion system, and realizes simultaneous detection of multiple samples by a microfluidic chip and a constant-temperature device. The detection method effectively avoids aerosol pollution, has excellent specificity, sensitivity and visualization advantages, is simple to operate, and does not need expensive instrument equipment, so that the detection of whether areca is infected by areca yellowing virus can be realized in the field simply and quickly, and the detection efficiency is improved.

The application discloses an integrated device and method for accurately simulating controllable coating and aging process of black carbon aerosol, and belongs to the technical field of atmospheric environment monitoring and simulation, which comprises black carbon aerosol generating module, multi-substance controllable coating module, aging simulation module and whole-process online detection module which are sequentially connected. The multi-substance controllable coating module innovatively connects inorganic condensation coating unit and organic photochemical coating unit in parallel, and the controllable thickness coating of single or composite substance can be realized through valve timing control. The application controls the OH free radical exposure amount through pure mechanical light shielding mode under the premise of ensuring spectral stability. The whole-process online detection module realizes real-time in-situ monitoring of aerosol properties at three nodes of generation, coating and aging through a multi-way sampling valve. The application solves the technical problems of separation of functional modules, single coating substance and light adjustment easy to cause spectral drift in the prior art, and provides a high-precision experimental platform for black carbon aerosol climate effect research.

This invention discloses an aerosol generating product and an aerosol generating system, relating to the field of tobacco product technology. The aerosol generating product includes: a main body; a thermal management hood embedded within the main body; the main body and the thermal management hood combined to form a closed cavity; a mouthpiece located at the top of the main body; an airflow channel inside the mouthpiece; a baffle member between the closed cavity and the airflow channel, the baffle member having at least one vent hole, the airflow channel communicating with the closed cavity through the vent hole; and an air inlet communicating with the airflow channel. During inhalation, external airflow enters the airflow channel through the air inlet and exits without passing through the smoking material; the aerosol generated by the heated smoking material enters the airflow channel through the vent hole and mixes with the external airflow before being output. In this aerosol generating product, the external airflow does not flow through the smoking material, and even if the heating temperature is increased, the smoking material will not burn, thus allowing for higher heating temperatures and the full release of tobacco aroma components.

This invention discloses a planar interdigitated capacitive humidity sensor with a dual-layer composite membrane structure and its fabrication method. The sensor body includes a substrate, an insulating layer, planar interdigitated electrode pairs, an electrode passivation layer, a humidity-sensitive polymer membrane layer, and a protective membrane layer. The protective membrane layer uses dense Parylene material to construct a nanoscale protective layer, allowing gas molecules to pass freely while effectively blocking dust, aerosols, and salt spray pollutants from direct contact with the core humidity-sensitive membrane, greatly enhancing the sensor's environmental tolerance and long-term stability. Parylene material is hydrophobic with low surface energy. In high-humidity environments, this ultra-thin hydrophobic membrane significantly reduces the adhesion probability and size of microdroplets on the humidity-sensitive membrane surface and possesses a certain self-cleaning ability. This effectively suppresses condensation on the humidity sensor surface and maintains surface cleanliness, enabling the sensor to maintain a good capacitance-humidity linear response relationship in high-humidity environments. This improves the sensor's full-range measurement accuracy, especially in the high-humidity range, and its long-term operational stability in high-humidity environments.

The application discloses a lake algal bloom and chlorophyll coupling inversion method and system based on FY4-AGRI data, and belongs to the technical field of remote sensing water quality inversion. The method is first based on the high-frequency data of the multi-channel scanning imaging radiometer AGRI carried by the FY4 satellite, constructs an atmospheric correction-BRDF direction correction-water quality inversion coupling model, and uniformly integrates the aerosol parameters, the BRDF direction parameters and the water body off-water reflectivity into the same optimization framework for joint solution. The water body reflectivity under different observation geometric conditions is corrected, the nonlinear mapping relationship between the water body spectral characteristics and the water quality parameters is mined in combination with PINN, and the accurate inversion of the lake algal bloom and the chlorophyll concentration is realized. The application effectively reduces the coupling error, improves the stability and the inversion precision of the off-water reflectivity, realizes the continuous dynamic monitoring of the water body environment by using the high time resolution advantage of AGRI, and provides a new way for the remote sensing inversion of the water quality of complex inland water bodies.

Abstract (Fig 1A) is: A method for mitigating risk of transmission of an infectious disease comprising: providing a substantially transparent shield component; providing a chamber component; and providing a suctioning component for suctioning aerosol attached to the interior surface of said shield component out of the space between said shield component and an individual occupying an object over which the shield component has been placed. 20 26 20 45 05 12 J un 2 02 6 2 0 2 6 2 0 2 6 2 0 4 5 0 5 1 2 J u n 2 0 2 6 2 0 2 6 2 0 4 5 0 5 1 2 J u n 100 102 1 / 27 27 101 103 104 FIG. 1A 20 26 20 45 05 12 J un 2 02 6 2 0 2 6 2 0 4 5 0 5 1 2 J u n 2 0 2 6 1 0 1 2 0 2 6 2 0 4 5 0 5 1 2 J u n 2 0 2 6 1 0 1