100 results about "Airborne exposure" patented technology

The invention discloses a laser additive pore defect monitoring method based on a multi-sensor fusion network and a related device. The method comprises the following steps: acquiring multi-source airborne acoustic emission signals which are acquired by a plurality of airborne acoustic emission sensors with different resonant frequencies and are generated along with the melting process of a laser powder bed; inputting the multi-source airborne acoustic emission signal into a pre-trained pore defect monitoring model, and outputting a pore defect monitoring result; wherein the pore defect monitoring model is obtained by training a multi-source sensing adaptive excitation fusion lightweight convolutional neural network by using a multi-source data set; the multi-source sensing adaptive excitation fusion lightweight convolutional neural network comprises a parallel dynamic weight multi-scale residual convolution module, a multi-sensor information adaptive fusion module, an asymmetric lightweight depth feature extraction module and a defect identification module. According to the invention, monitoring of in-situ pore defects in the melting process of the laser powder bed under complex working conditions of multi-sensor information interpretability intelligent fusion driving is realized, and the accuracy and stability of acoustic monitoring in the melting process of the laser powder bed are enhanced.

A mask apparatus that is configured to prevent airborne pathogens from reaching an individual by actively mitigating airborne droplets that have a pathogen. In one example, the mask apparatus comprises a sensor device, a mitigator device, and a controller. The sensor device comprises an aerosol detector that is configured to perform a light measurement of an airborne aerosol droplet in an area proximate to the wearable apparatus. The mitigator device is configured to initiate a mitigation action directed at the airborne aerosol droplet. The controller is data communication with the sensor device and the mitigator device. The controller is configured to determine that the airborne aerosol droplet has a pathogen based at least in part on the light measurement captured by the sensor device and cause the mitigator device to initiate the mitigation action based on the airborne aerosol droplet having the pathogen.

A method (700) for detecting one or more pests in a trap (100) is disclosed. The trap (100) comprises one or more entrances (102), a capture compartment (104), one or more gas sensors (106) arranged to register airborne substances released in the capture compartment (104) and one or more non-gas sensors (108) arranged to register one or more environmental parameters in the capture compartment (104) and / or in the one or more entrances (102), a control circuitry (110), comprising a processor (112) and a memory (114), arranged to control operation of the one or more gas and non-gas sensors (106, 108), and a data processing model (116) communicatively connected to the control circuitry (110). The method comprises obtaining (702) gas sensor data (204) indicative of the airborne substances using the one or more gas sensors (106), obtaining (704) non-gas sensor data (206) indicative of the one or more environmental parameters using the one or more non-gas sensors (108), providing (706) the gas sensor data (204) and the non-gas sensor data (206) as inputs to the data processing model (116), and generating (708) output data (208) from the data processing model (116), wherein the output is indicative of presence or non-presence of the one or more pests in the capture compartment (104).

A portable airborne pathogen control apparatus and system. Aspects of the present disclosure provide for a portable airborne pathogen control apparatus configured to be selectively positioned within an interior room and configured to enable a floor-to-ceiling flow of air within the interior room. The portable airborne pathogen control apparatus may comprise a housing with an air intake disposed at a lower area of a base housing and an air outlet disposed at an upper area of an elongated duct extending from the base housing. A blower fan housed within an interior chamber of the housing may be configured to direct a floor-to-ceiling flow of air through the interior chamber from the air intake to the air outlet. A volume of air directed through the interior chamber of the housing may be disinfected using one or more UV-C emitters and / or cold plasma generator(s) housing in the interior chamber of the housing.

A protection device for preventing exposure to undesired airborne material. The device including a filter assembly having a filter, and a proximal and a distal layer configured to hold the filter sandwiched between the proximal layer and the distal layer, a one-way valve positioned in the filter assembly and coupled to the proximal layer of the filter assembly, and a seal positioned along a peripheral edge of the filter assembly, the filter assembly and the seal defining a first safety compartment for enclosing a user's mouth and nose. The device can include an eye shield assembly having a skirt extending from the filter assembly and positioned distal to the seal, an optically transparent eye shield coupled to the skirt to form a continuous surface from the filter assembly to a top portion of the eye shield, and a frame coupled to the frame assembly and eye shield assembly.

A method for specifying desired quantities of the energy flux of the combined waves of acoustic radiation pressure to apply producing a mid-air haptic pushing force, which has the effect of simultaneously reducing the harmonic distortion present is described. Further, a method for communicating only the summaries of acoustic field contributions at the required locations in the form of summed portions of the relatively small matrix whose row and column count depend only on the control point count is described. Further, phased arrays of ultrasonic speakers can produce a relatively large amount of acoustic energy which is usually directed in a specific direction or focused to a particular point depending on the application of the array. Further, to allow the system to be driven more strongly than usual, the complex-valued linear system that governs the drive signal to each control point is solved twice. Further, to achieve mid-air haptics with high precision the radiation pressure generated must be modelled accurately.

The present invention relates to a system for detecting and predicting the presence of pathogens in a predetermined area of a field comprising a network of measurement stations, each measurement station comprising a first type of sensor adapted to measure environmental data, and a second type of sensor adapted to detect airborne pathogens, the system further comprising a computer processing unit adapted to collect the data to the two types of sensors and treat them by artificial intelligence to provide real-time spatially and temporally resolved data about the early detection of the pathogens as well as environmental data that are correlated to the spread and development of the pathogens and the plant disease and identify specific patterns representative of situations where treatment is required and a communication device able to send a signal to said field user indicating in which area treatment is required.

The invention relates to a method for locating an anomaly in a rotor blade (6) of a wind turbine (1), comprising the following steps: - Detection of airborne sound by means of at least one airborne sound sensor (11, 21, 31) arranged within the rotor blade (6); - Detection of structure-borne sound by means of at least one structure-borne sound sensor (12, 22, 32) arranged in or on the rotor blade (6); - Determining time points (t K , t L ), to which an event in which airborne sound and structure-borne sound are emitted at an unknown origin position in or on the rotor blade (6) is reflected in the detected airborne sound and in the detected structure-borne sound; - Determining a time difference (Δt) between the times (t K , t L ); and - Determining the origin position based on the time difference (Δt) and the positions of the airborne sound sensor (11, 21, 31) and the structure-borne sound sensor (12, 22, 32). The invention further relates to an arrangement suitable for carrying out the method for locating an anomaly in a rotor blade (6) of a wind turbine (1).

A method (700) for detecting one or more pests in a trap (100) is disclosed. The trap (100) comprises one or more entrances (102), a capture compartment (104), one or more gas sensors (106) arranged to register airborne substances released in the capture compartment (104) and one or more non-gas sensors (108) arranged to register one or more environmental parameters in the capture compartment (104) and / or in the one or more entrances (102), a control circuitry (110), comprising a processor (112) and a memory (114), arranged to control operation of the one or more gas and non-gas sensors (106, 108), and a data processing model (116) communicatively connected to the control circuitry (110). The method comprises obtaining (702) gas sensor data (204) indicative of the airborne substances using the one or more gas sensors (106), obtaining (704) non-gas sensor data (206) indicative of the one or more environmental parameters using the one or more non-gas sensors (108), providing (706) the gas sensor data (204) and the non-gas sensor data (206) as inputs to the data processing model (116), and generating (708) output data (208) from the data processing model (116), wherein the output is indicative of presence or non-presence of the one or more pests in the capture compartment (104).

The nose mask is intended to be used during an airborne pandemic. The nose mask is a single triangle / cone shaped that covers only the nose, that comes with two ear elastic bands or a single head elastic band for support. The nose mask is designed to be disposable with a filter for better protection and to minimize the passage of aerosols, fluids and airborne pathogen agents or to be made with washable material allowing users to re-use it.

A disposable, flat-fold respirator is presented that includes a mask body that includes a plurality of panels which may fold in towards each other and may unfold into an open configuration. The mask body includes a single layer of charged filter material. The plurality of panels includes an upper panel, a lower panel, and a central panel. The central panel is connected to the upper panel and lower panel. The respirator filters at least 95% of airborne particles with a mass median aerodynamic diameter of 0.3 µm. A harness is secured to the mask body.

To provide an apparatus and a method for destroying microorganisms on surfaces of grains using sound.SOLUTION: Provided is a method for the destruction of microorganisms present on the surface of a plurality of grains or dried food products disposed in a container having a surface, the method including: subjecting the surface of the container to a first periodic vibrational excitation having a first amplitude effective to cause the plurality of grains or dried food products disposed in the container to become airborne; subjecting the plurality of airborne grains or dried food products to a second periodic vibrational excitation having a second amplitude relative to the surface of the container effective to increase collisions therebetween, whereby the microorganisms are destroyed by the collisions of the airborne grains or dried food products.SELECTED DRAWING: Figure 5

A system for a vehicle includes data processing hardware, memory hardware in communication with the data processing hardware, the memory hardware storing instructions that, when executed on the data processing hardware, cause the data processing hardware to perform operations that include detecting airborne contaminants within a cabin, determining if the airborne contaminants exceed a contaminant threshold, and reducing a level of airborne contaminants within the cabin by controlling at least one vehicle system when the airborne contaminants exceed the contaminant threshold.

Fabric materials are disclosed that have been treated with a water resistant and antimicrobial treatment. The water resistant and antimicrobial treatment includes a combination of a durable water resistant composition and an antiviral composition. Protective garments can be made from the fabric that provide protection against airborne pathogens by preventing penetration through the fabric material and by destroying any pathogens that land upon the fabric.

The present specification, in some embodiments, describes a personal wear device that direct the flow of air away from a person's face, reducing or blocking the flow of infectious pathogens towards a patient's naso-oral area thus reducing the risk of inhalation of infectious or noxious pathogens. In another embodiment, the present specification describes a personal air management mask system for use by a patient for reducing or preventing exposure to and inhalation of infected aerosol during a medical procedure.

A direct air capture system for capturing, containing, and transporting airborne matter includes a filter assembly, a particle container configured to receive airborne matter loosened from the filter assembly, a means for cowling venting configured to utilize vacuum pressure to transport the airborne matter. The system also includes an electric motor assembly having a motor drive, a drive gear, and a drive shaft, as well as at least one scrubbing brush configured to loosen airborne matter from the filter assembly.

A system for the detection of airborne viruses is disclosed. The system comprises at least one local detector, the local detector comprising an aerosol collection module arranged to gather the particulate matter from the aerosol sample onto a collection chip, an analysis module arranged for detecting the amount of the viruses that are part of the particulate matter contained in the collected aerosol sample, and an output module arranged to emit a warning signal when the total viral content surpasses a predetermined threshold.

Laboratory automation systems and instruments are disclosed herein comprising components that may facilitate de-contamination of the instrument using an airborne disinfectant. Maintaining the airborne disinfectant within a predetermined range can be achieved by creating a feedback loop between generating the airborne disinfectant from a disinfectant solution. Instruments disclosed can comprise vaporization modules in communication with reservoirs of a disinfectant solution, or receive cleaning cartridges comprising the disinfectant solution, which may be energized to generate the airborne disinfectant. Decontamination methods are also disclosed herein.

Aspects of the present disclosure include a filtration system. The filtration system includes a mask and a hybrid filter for use with an activated carbon-based filter and attachable to the mask. The mask may include an interface around a periphery of the mask for sealing engagement with a skin surface of a user. The hybrid filter may include a chamber configured to receive the activated carbon-based, an electro-ionic filter, and a Faraday cage. The electro-ionic filter is in series with the material-based filtration element and includes a plurality of electrodes arranged in series with each other. The electrodes of the plurality of electrodes are evenly spaced apart from each other in an alternating positive-polarity negative-polarity sequence. The Faraday cage surrounds at least the electro-ionic filter.

A method of control of an indoor space, in particular of parameters, preferably of well-being, of the indoor space; wherein the control method comprises the following steps of : determining, in particular calculating and / or measuring, at least three first parameters, preferably at least four or five first parameters, selected from the group of parameters : temperature; humidity; relative air speed; heat insulation of persons and / or current month; metabolic rate of persons; noise; carbon dioxide; carbon monoxide; volatile organic compounds (VOC); airborne particulate matter of the PM1 type; airborne particulate matter of the PM2. 5 type, airborne particulate matter of the PM10 type; - calculating an index, preferably related to well-being in said space, using the at least three parameters, preferably the at least four or five parameters; - comparing said index, preferably related to well-being in said space, to at least a threshold value range; if said index is outside the at least one threshold value range, defining how at least one second parameter must vary in order to bring said index within the at least one threshold range; wherein said second parameter is selected from the group of parameters : air speed, temperature, humidity, noise, carbon dioxide, carbon monoxide, volatile organic compounds (VOC); airborne particulate matter of the PM1 type, airborne particulate matter of the PM2. 5 type, airborne particulate matter of the PM10 type; and defining an action to be performed to achieve the defined change of said at least one second parameter.

Provided are innovative compositions for tethering blocking an inactivating of airborne respiratory infectious viruses. The compositions comprise bispecific proteins with two different antigen binding regions (ABR), which are typically configured as immunoglobulin “single variable domains” (ISV). A first ISV binds to a surface protein found on an airborne infectious virus. A second ISV binds to a mucin protein, e.g. a mucin protein present on ocular, nasopharyngeal, tracheal and / or oral surfaces of a mammal. The two ISV are joined by a polypeptide linker.

Methods for revitalizing components of a plasma processing apparatus that includes a sensor for detecting a thickness or roughness of a peeling weakness layer on a protective surface coating of a plasma processing tool and / or for detecting airborne contaminants generated by such peeling weakness layer. The method includes detecting detrimental amounts of peeling weakness layer buildup or airborne concentration of atoms or molecules from the peeling weakness layer, and initiating a revitalization process that bead beats the peeling weakness layer to remove it from the component while maintaining the integrity of the protective surface coating.

The present invention relates to an improved face shield that offers a way to keep the wearer safe from harmful airborne pathogens and other pollutants, while still performing a job or task. The face shield has a transparent or translucent frame and a headband for securing the face shield. The face shield is integrated with at least one microphone, an optional speaker, a digital display disposed on the headband, a wireless module and connection ports. A plurality of sensors augments the protection of the wearer and other users and calculate the oxygen level and the temperature of the wearer as well as other sensors. Connection ports such as XLR port can be used for connecting the face shield to speaker, and a USB port can be used for connecting to a handheld electronic device.

Systems, methods, and devices for the generation and execution of an environmental protection plan may be deployed to aid with a reduction of, for example, air-borne and / or surface pathogens within an environment. The environmental protection plan may use one or more sanitizing devices to emit sanitizing radiation (e.g., far UVC light) into the environment to kill or otherwise neutralize pathogens such as viruses and bacteria within the environment. At times, the environmental protection plan may be responsive to one or more aspects (size, objects contained therein) of the environment, a use for the environment, a modeled and / or actual pathogen load within the environment, desired levels of pathogen reduction within the environment, and / or human and / or animal safety limits for the sanitizing radiation.

A toilet infectious airborne particulate filtration and disinfection system is provided. The system includes a modified toilet seat assembly, with circumferentially arranged grooves on an underside of the modified toilet seat assembly. The system also includes a seat air filtration unit configured to mate with the grooves. The system further includes a modified toilet lid assembly, with grooves on an underside of the lid. The system includes a lid air filtration unit configured to mate with the grooves. The system also includes an internally arranged disinfectant dispersing mechanism, with a disinfectant fluid reservoir, positioned internally to a toilet bowl enclosure. The system also includes a plurality of spray nozzles positionable about the toilet bowl enclosure and a plurality of disinfectant fluid delivery tubes positioned internally to the toilet bowl. The system includes a disinfectant propellant mechanism and activation control device. System is adaptable to a urinal.

The utility model discloses an isolation disinfection device which comprises a flow guide shell, an air cavity is formed in the flow guide shell, an air inlet is formed in the top of the flow guide shell, an air outlet is formed in the bottom of the flow guide shell, the air outlet inclines towards the ground and is annular, and an air blowing assembly is arranged in the middle of the air cavity; an isolation space formed by high-speed airflow blowing downwards can be formed, and the interior and the periphery of the space are killed while the isolation space is formed; after the isolation disinfecting and killing device is started, when a patient is located in the isolation space, due to the existence of the isolation space formed by high-speed airflow, infectious substances such as viruses, bacteria and unclean suspended matters in the air on the outer side of the isolation space can be isolated at the periphery of the space by the high-speed airflow and are disinfected and killed; therefore, the patient in the isolation space cannot be in contact with infectious substances when in the isolation space, and the risk of mutual infection is reduced.

Methods and devices for continuous flow monitoring of a liquid sample for presence of an airborne microbial pathogen are provided. The liquid sample can be derived from environmental air. The methods and devices provide for continuous labeling of a targeted pathogen in the liquid sample with a fluorescent probe. A customized fluorescence detector is provided that can detect labeled pathogens during continuous flow.

Allergen exposure chambers (AECs) can be used to produce controlled exposure to allergenic and non-allergenic airborne particles but at present cannot be used for double-blind, placebo-controlled, randomized clinical trials currently required by regulatory authorities. Accordingly, inventive naturalistic exposure chambers (NECs) designed to mimic the environment(s) within which a typical user / individual is exposed are outlined. Further, reproducible controlled allergen dispersal is achieved via robotic allergen aerosolization systems (AAS) which provide automated movement of the allergen source within the AEC as well as structure for acquiring and / or aerosolizing—distributing the allergen. Robotic AAS can be used to acquire only, distribute only, or acquire and distribute. Robotic AAS may also provide aerosolization of two or more allergens in defined manner.

The present disclosure relates to an airborne pathogen extraction system that provides continuous extraction of airborne pathogen particles from a specific target area in a room or a specific target area proximate to a user. The pathogenic particles are filtered and / or disinfected before the air returns near its starting position or are directed to an area away from the user. The airborne pathogen extraction system and method reduce the chance of contagion or infection by airborne pathogens such as viruses.

A disposable or optically clear mask is provided that includes a mask body having a periphery and a strap attached to the mask body proximate the periphery for removably holding the mask on a user's face, the mask body having an inner layer made of a polymeric plastic material having a plurality of passages therethrough, the inner layer having an inner surface and an outer surface, and a porous glass filter functionalized with a visible light photocatalyst and abutting the outer surface of the inner layer. Also provided is a garment including glass fibers functionalized with a visible light photocatalyst.