<?xml version="1.0"?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-25T12:11:41Z</responseDate><request verb="GetRecord" metadataPrefix="oai_dc">https://keep.lib.asu.edu/oai/request</request><GetRecord><record><header><identifier>oai:keep.lib.asu.edu:node-152919</identifier><datestamp>2024-12-20T18:25:12Z</datestamp><setSpec>oai_pmh:all</setSpec><setSpec>oai_pmh:repo_items</setSpec></header><metadata><oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:identifier>152919</dc:identifier>
          <dc:identifier>https://hdl.handle.net/2286/R.I.25858</dc:identifier>
                  <dc:rights>http://rightsstatements.org/vocab/InC/1.0/</dc:rights>
          <dc:rights>All Rights Reserved</dc:rights>
                  <dc:date>2014</dc:date>
                  <dc:format>x, 116 p. : ill. (some col.)</dc:format>
                  <dc:type>Doctoral Dissertation</dc:type>
          <dc:type>Academic theses</dc:type>
          <dc:type>Text</dc:type>
                  <dc:language>eng</dc:language>
                  <dc:contributor>Chen, Cheng, Ph.D</dc:contributor>
          <dc:contributor>Tao, Nongjian</dc:contributor>
          <dc:contributor>Kiaei, Sayfe</dc:contributor>
          <dc:contributor>Zhang, Yanchao</dc:contributor>
          <dc:contributor>Tsow, Tsing</dc:contributor>
          <dc:contributor>Arizona State University</dc:contributor>
                  <dc:description>Partial requirement for: Ph.D., Arizona State University, 2014</dc:description>
          <dc:description>Includes bibliographical references</dc:description>
          <dc:description>Field of study: Electrical engineering</dc:description>
          <dc:description>Monitoring  of  air  pollutants  is  critical  for  many  applications  and  studies.  In &lt;br/&gt;&lt;br/&gt;order  to  access  air  pollutants  with  high  spatial  and  temporal  resolutions,  it  is &lt;br/&gt;&lt;br/&gt;necessary  to  develop  an  affordable,  small  size  and  weight,  low  power,  high &lt;br/&gt;&lt;br/&gt;sensitivity  and  selectivity,  and  wireless  enable  device  that  can  provide  real  time &lt;br/&gt;&lt;br/&gt;monitoring of air pollutants. Three different kind of such devices are presented, they &lt;br/&gt;&lt;br/&gt;are targeting environmental pollutants such as volatile organic components (VOCs), &lt;br/&gt;&lt;br/&gt;nitrogen  dioxide  (NO2)  and  ozone.  These  devices  employ  innovative  detection &lt;br/&gt;&lt;br/&gt;methods,  such  as  quartz  crystal  tuning  fork  coated  with  molecularly  imprinted &lt;br/&gt;&lt;br/&gt;polymer  and  chemical  reaction  induced  color  change  colorimetric  sensing.  These &lt;br/&gt;&lt;br/&gt;portable devices are validated using the gold standards in the laboratory, and their &lt;br/&gt;&lt;br/&gt;functionality and capability are proved during the  field tests, make them great tools &lt;br/&gt;&lt;br/&gt;for various air quality monitoring applications.</dc:description>
                  <dc:subject>Engineering</dc:subject>
          <dc:subject>Chemistry</dc:subject>
          <dc:subject>chemical sensor</dc:subject>
          <dc:subject>Environmental</dc:subject>
          <dc:subject>Personal Health</dc:subject>
          <dc:subject>portable</dc:subject>
          <dc:subject>Volatile Organic Compounds</dc:subject>
          <dc:subject>wireless</dc:subject>
          <dc:subject>Chemical detectors</dc:subject>
          <dc:subject>Volatile organic compounds--Environmental aspects.</dc:subject>
          <dc:subject>Volatile Organic Compounds</dc:subject>
          <dc:subject>Volatile organic compounds--Health aspects.</dc:subject>
          <dc:subject>Volatile Organic Compounds</dc:subject>
                  <dc:title>Portable wireless sensors for  personal exposure and environmental monitoring</dc:title></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>
