Results 11 to 20 of about 517,126 (302)

Low-Cost Calibration MOS Gas Sensor for Measuring SO2 Pollutants in Ambient Air [PDF]

open access: yesNature Environment and Pollution Technology, 2022
Air pollution has evolved into a global issue that necessitates immediate and accurate pollution control. The usage of the Metal Oxide Semiconductor (MOS) sensor as a monitoring system for air pollution levels is one possible answer to this challenge ...
R. Purbakawaca, A.S. Yuwono, I.D.M. Subrata and H. Alatas
doaj   +1 more source

Detection of H2S at Room Temperature Using ZnO Sensors Based on Hall Effect

open access: yesInternational Journal of Electrochemical Science, 2017
In this paper, a novel selective gas sensor for detection of H2S gas is proposed based on Hall Effect. ZnO sensors based on Hall Effect were fabricated from ZnO nanonails prepared by a hydrothermal method and their gas-sensing properties were ...
J.Y. Lin, Z.X. Chen, X.L. He, W.M. Xie
doaj   +1 more source

Modular Analytical Multicomponent Analysis in Gas Sensor Aarrays

open access: yesSensors, 2006
A multi-sensor system is a chemical sensor system which quantitatively andqualitatively records gases with a combination of cross-sensitive gas sensor arrays andpattern recognition software.
Theodor Doll   +5 more
doaj   +1 more source

Microfabricated Formaldehyde Gas Sensors [PDF]

open access: yesSensors, 2009
Formaldehyde is a volatile organic compound that is widely used in textiles, paper, wood composites, and household materials. Formaldehyde will continuously outgas from manufactured wood products such as furniture, with adverse health effects resulting from prolonged low-level exposure.
Karen C. Cheung   +2 more
openaire   +3 more sources

Millimeter wave carbon nanotube gas sensor [PDF]

open access: yes, 2007
This Letter reports experimental observations regarding the significant changes in the transmission modulus and phase of the propagating microwave signals up to 110 GHz in a micromachined coplanar waveguide supported on a dielectric membrane with a ...
Bary, Laurent   +6 more
core   +3 more sources

A Gas Chromatographic System for the Detection of Ethylene Gas Using Ambient Air as a Carrier Gas

open access: yesSensors, 2017
Ethylene gas is a naturally occurring gas that has an influence on the shelf life of fruit during their transportation in cargo ships. An unintentional exposure of ethylene gas during transportation results in a loss of fruit.
Nayyer Abbas Zaidi   +3 more
doaj   +1 more source

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry [PDF]

open access: yes, 2019
The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of ...
Chang, J.   +7 more
core   +1 more source

Zero-Padding and Spatial Augmentation-Based Gas Sensor Node Optimization Approach in Resource-Constrained 6G-IoT Paradigm

open access: yesSensors, 2022
Ultra-low-power is a key performance indicator in 6G-IoT ecosystems. Sensor nodes in this eco-system are also capable of running light-weight artificial intelligence (AI) models.
Shiv Nath Chaudhri   +4 more
doaj   +1 more source

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations [PDF]

open access: yes, 2012
This paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and
Benussi, L.   +6 more
core   +1 more source

Highly sensitive two-dimensional MoS2 gas sensor decorated with Pt nanoparticles [PDF]

open access: yesRoyal Society Open Science, 2018
A two-dimensional molybdenum disulfide (MoS2)-based gas sensor was decorated with Pt nanoparticles (NPs) for high sensitivity and low limit of detection (LOD) for specific gases (NH3 and H2S).
Jaeseo Park   +3 more
doaj   +1 more source

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