Results 21 to 30 of about 2,811,277 (295)
A Wireless Gas Sensor Network to Monitor Indoor Environmental Quality in Schools
Sensors, 2018 Schools are amongst the most densely occupied indoor areas and at the same time children and young adults are the most vulnerable group with respect to adverse health effects as a result of poor environmental conditions.
Alvaro Ortiz Perez +4 more
doaj +1 more source
Sensors, 2022 Infrared absorption spectroscopy is a widely used tool to quantify and monitor compositions of gases. The concentration information is often retrieved by fitting absorption profiles to the acquired spectra, utilizing spectroscopic databases.
Jens Goldschmidt +4 more
doaj +1 more source
Cavity-Enhanced Raman Spectroscopy for Food Chain Management
Sensors, 2018 Comprehensive food chain management requires the monitoring of many parameters including temperature, humidity, and multiple gases. The latter is highly challenging because no low-cost technology for the simultaneous chemical analysis of multiple gaseous
Vincenz Sandfort +3 more
doaj +1 more source
Gas identification with tin oxide sensor array and self-organizing maps: adaptive correction of sensor drifts [PDF]
, 1998 Low-cost tin oxide gas sensors are inherently nonspecific. In addition, they have several undesirable characteristics such as slow response, nonlinearities, and long-term drifts.
Antonio Pardo +7 more
core +1 more source
Recent Advances in Gas Sensing Technology Using Non-Oxide II-VI Semiconductors CdS, CdSe, and CdTe
Chemosensors, 2022 In recent years, there has been an increasing need and demand for gas sensors to detect hazardous gases in the atmosphere, as they are indispensable for environmental monitoring.
Masanori Ando +4 more
doaj +1 more source
Analysis of landfill gas migration by use of autonomous gas monitoring platforms [PDF]
, 2012 Autonomous gas sensing platforms have been developed to facilitate the long-term continuous monitoring of landfill gas concentrations. The analysis of a municipal landfill site in Ireland forms part of an on-going collaboration with the Environmental ...
Collins, Fiachra +3 more
core +2 more sources
One-Dimensional Nanomaterials in Resistive Gas Sensor: From Material Design to Application
Chemosensors, 2021 With a series of widespread applications, resistive gas sensors are considered to be promising candidates for gas detection, benefiting from their small size, ease-of-fabrication, low power consumption and outstanding maintenance properties.
Ze Wang +4 more
doaj +1 more source
SensorsWe present a high-speed, miniaturized, Peltier-driven thermocycler for Polymerase Chain Reaction (PCR) with heating rates of 22.25 °C/s and cooling rates of 5.30 °C/s, using a standard aluminum block (a four-well section of a 96-well plate) and laterally
Passar Bamerni +4 more
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Rapid characterisation of mixtures of hydrogen and natural gas by means of ultrasonic time-delay estimation [PDF]
Journal of Sensors and Sensor SystemsThe implementation of the “power-to-gas” concept, where hydrogen and natural gas are blended and transported in the existing network, requires a quick, on-site method to monitor the content of hydrogen in the mixture. We evaluate a rapid characterisation
J. M. Monsalve +7 more
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Monitoring of gas emissions at landfill sites using autonomous gas sensors [PDF]
, 2010 Executive Summary This report details the work carried out during the Smart Plant project (2005-AIC-MS-43-M4). As part of this research, an autonomous platform for monitoring greenhouse gases (methane (CH4), carbon dioxide (CO2)) has been developed,
Beirne, Stephen +3 more
core +3 more sources