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MEMS-Based System for Particle Exposure Assessment Using ,

Miniaturized System for Particle Exposure Assessment (MSPEA) Designed for the detection of PM 25 (PM with a diameter smaller than 25 µm), the MSPEA uses a 10 MHz quartz crystal microbalance (QCM) for mass detection and optical probes for :...

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Airborne particulate matter classification and ,

In this paper, design, fabrication and experiment of a miniature system for detection of airborne particulate matter (PM) are presented The miniature system contains a virtual impactor and a quartz crystal microbalance (QCM) resonant sensor...

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Aerospace Material Standards - ASTM International

ASTM's aerospace material standards are instrumental in evaluating materials, components, and devices primarily used in aerospace and aircraft industri The aerospace material standards allow various companies around the world to test these materials in order to evaluate their thermal, optical, mechanical, chemical, and electrical properti...

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FED STD 209 : E | AIRBORNE PARTICULATE CLEANLINESS CLA ,

411 Measurement at particle sizes listed in Table I 412 Measurement at alternative particle sizes 42 Provision for defining alternative airborne particulate cleanliness classes Table I Airborne particulate cleanliness classes 43 Provision for describing ultrafine particle concentrations (U descriptors) 44 Nomenclature for airborne particle...

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Andrea R Ferro | Clarkson University

Andrea Ferro is a professor in the Department of Civil and Environmental Engineering at Clarkson University in Potsdam, NY Her technical expertise is focused on indoor air quality and human exposure to particulate pollutants She has also worked in the private industry, engineering consulting and ....

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Microgravimetric immunosensor for direct detection of ,

of airborne influenza has not yet been fully explored Bio-logical aerosol mass spectrometry (BAMS) has only recently emerged for detection of microorganisms with no reagent con-sumption [9] Fluorescence aerodynamic particle sizing [10], multiwavelength UV ,...

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Biosensors for Monitoring Airborne Pathogens - Christopher ,

Airborne pathogens affect both humans and animals and are often highly and rapidly transmittable Many problematic airborne pathogens, both viral (influenza A/H1N1, Rubella, and avian influenza/H5N1) and bacterial (Mycobacterium tuberculosis, Streptococcus pneumoniae, and Bacillus anthracis), have huge impacts on health care and agricultural applications, and can potentially be used as ....

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Space product assurance - ESA

ECSS 11 December 2002 ECSS--Q--70--01A 3 Foreword This Standard is one of the series of ECSS Standards intended to be applied together for the management, engineering and ,...

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Multiscale Thermal Science Laboratory | Research ,

A Microfluidics-based on-chip Impinger for Airborne Particle Collection Capturing airborne particles from air into a liquid is a critical process for the development of many sensors and analytical systems A miniaturized airborne particle sampling device (microimpinger) has been developed in this research which relies on a controlled bubble ....

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Real-Time Size-Distributed Measurement of Aerosol Mass ,

Real-Time Size-Distributed Measurement of Aerosol Mass Concentration Modi Chen, Lin Li, Virgil Marple, Amir Naqwi, Francisco Romay, Daryl Roberts, MSP Corporation, Shoreview, MN James C Wilson, University of Denver, CO SUMMARY A prototype of a new instrument is developed for airborne aerosol mass measurements...

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SOP: Operation of Met One GT-321 Particle Counter

11 Measure the number of airborne particulates per cubic foot using the Met One GT-321 particle counter 2 Scope and Applicability 21 The Met One GT-321 particle counter measures airborne particles by drawing in ambient air using a vacuum pump and counting particles using a ,...

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The QCM - Online Dose Measurement with high relative ,

The QCM - Online Dose Measurement with high relative Humidity 1S Mülhopt, 2A Comouth, 1A Grotz, , assessment of the risk of airborne nanoparticles in , For accurate determination a of the particle dose on the cell culture surface a novel online measurement technique was developed (Mülhopt et...

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UAV Characteristics - Division of Physics and Biophysics ,

copter features two aerosol sensors and a gas sniffing device The QCM detects mass-fractions <10µm with a sensitivity of <5ng (with the UAV grounded and slightly less in a stationary humming, airborne mode) The OPC records particle number concentration in three different size classes simultaneously (03, 25 and 10 µm)...

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Design and modelling of solidly mounted resonators for low ,

of discrete airborne particles and several studies have reported , system for airborne particle detection Keywords: air quality monitoring, finite element model, particle sensor, solidly mounted resonator , (QCM) are the most widely known bulk acoustic wave resonators They commonly con-...

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Miniature Airborne Particle Mass Monitor - Tech Briefs

This instrument replaces particle number counters in monitoring industrial and environmental pollution, , Miniature Airborne Particle Mass Monitor , there is coupled to the QCM a size-selective inlet based on balancing the size-dependent gravimetric settling velocity of ,...

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What Are Airborne Particles? (with pictures) - wisegeek

Jun 09, 2019· Airborne particle counters can be used to measure the particle content of indoor and outdoor air Such instruments commonly detect particles with a diameter of 02-25 microns Scientists believe that airborne particles with a diameter less than 25 microns can be ,...

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EU-PEMS PM EVALUATION PROGRAM - circabceuropaeu

The mission of the JRC-IE is to provide support to Community policies related to both nuclear and non-nuclear energy in order to ensure sustainable, secure and ,...

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URBAN AIR QUALITY MONITORING: NUMBER- AND MASS ,

A workhorse technology for number-based techniques is the Condensation Particle Counter, or CPC While each model of CPC has a cutpoint size below which it is not sensitive, CPCs will count every particle that enters them, from that cutpoint size all the way up into the super-micron range Common CPC cutpoints are 25, 7, and 10 nm...

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Design and modelling of solidly mounted resonators for low ,

of discrete airborne particles and several studies have reported , system for airborne particle detection Keywords: air quality monitoring, finite element model, particle sensor, solidly mounted resonator , (QCM) are the most widely known bulk acoustic wave resonators They commonly con-...

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Counterflow virtual impactor | NASA Airborne Science Program

The NCAR counterflow virtual impactor (CVI) (Noone et al, 1988; Twohy et al, 1997) is an airborne instrument that can be used for studies of aerosol/cloud interactions, cloud physics, and climate At the CVI inlet tip, cloud droplets or ice crystals larger than about 8 µm aerodynamic diameter are separated from the interstitial aerosol and ....

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Individual AirBorne Particle Mass Measurement Using High ,

However, they cannot provide the particle count of implementation of low-cost and small-size instruments for and size distribution data which would require measurement of airborne particle mass and size distribution analysis in highly the mass of individual particl...

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Biosensors for Monitoring Airborne Pathogens - Christopher ,

Airborne pathogens affect both humans and animals and are often highly and rapidly transmittable Many problematic airborne pathogens, both viral (influenza A/H1N1, Rubella, and avian influenza/H5N1) and bacterial (Mycobacterium tuberculosis, Streptococcus pneumoniae, and Bacillus anthracis), have huge impacts on health care and agricultural applications, and can potentially be used as ....

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Microgravimetric immunosensor for direct detection of ,

of airborne influenza has not yet been fully explored Bio-logical aerosol mass spectrometry (BAMS) has only recently emerged for detection of microorganisms with no reagent con-sumption [9] Fluorescence aerodynamic particle sizing [10], multiwavelength UV ,...

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Comparison of different types of particle counters with ,

Comparison of different types of particle counters with aerosolized polystyrene reference particles Kai Dirscherl1, Karsten Fuglsang2, Thue Grønhøj Frederiksen2, Anne Gry Hemmersam3, Morten Krøcks Lykkegaard3, Søren Kronmann4, Kim René Friborg4 1 Danish Fundamental Metrology, Matematiktorvet 307, Lyngby, Denmark, [email protected] 2 FORCE Technology, Park Alle 345, Brøndby, Denmark...

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Real-time monitoring of airborne allergen using a QCM ,

The purpose of this study was to demonstrate the potential of real-time monitoring of airborne allergen powder using quartz crystal microbalance (QCM) technology Monoclonal antibodies of allergen (Fel d 1) were immobilized onto a gold-coated quartz crystal using a cysteamine self-assembled monolayer (SAM) The QCM responses exhibited ....

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Real-Time Fluorescence Measurement of Airborne Bacterial ,

Abstract In the search for methods by which an ambient environment can be continuously monitored for potentially harmful biological aerosols, particle fluorescence methods have received considerable attention over the past decade The aerosol fluorescence sensor (AFS) is a monitoring device for continuous, real-time detection of airborne biological particl...

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A Miniature System for Separating Aerosol Particles and ,

In this paper, we report a miniature system for separation and detection of particulate matter (PM) based on a 3-D printed virtual impactor (VI) and a quartz crystal microbalance (QCM) sensor...

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A Micro Aerosol Sensor for the Measurement of Airborne ,

Airborne nanoparticles or ultrafine particles [1,2] distributed in the atmospheric, indoor and industrial environments seriously threaten human health [3,4] The number concentration and particle size are the two key parameters used to describe exposure to airborne nanoparticles or ultrafine particl...

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Airborne Particulate Matter Classification and ,

Airborne Particulate Matter Classification and Concentration Detection Based on 3D Printed Virtual Impactor and Quartz Crystal Microbalance Sensor...

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News | MSP CORP

Apr 18, 2017· The Wide-Range Particle Spectrometer was developed by a team of scientists and engineers at MSP, an aerosol/particle technology company based in Shoreview, MN The instrument is used by researchers worldwide for highly precise and accurate airborne particle measurement in air pollution studies and laboratory research About MSP...

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