Results 241 to 250 of about 120,634 (290)

Three-dimensional optical path extended gourd-type photoacoustic cell for highly sensitive trace acetylene sensing. [PDF]

Photoacoustics
Qian C, Ni W, Yang C, Zhao Z, Zhang L, Ran S, Wang C, Lu P, Shum PP.   +8 more
europepmc   +1 more source

Focus on atmospheric remote sensing and environmental change

Environmental Research Letters
Zhengqiang Li, Jason Blake Cohen, Kai Qin, Jintai Lin, Zhe Jiang, Xiaomeng Jin   +5 more
doaj   +1 more source

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

Advanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins, Jeferson Luiz Gogola, Ava Gevaerd, Cristiane Kalinke, Paulo Roberto de Oliveira, Fabio Roberto Caetano, Bruno Campos Janegitz, Márcio Fernando Bergamini, Luiz Humberto Marcolino‐Junior   +8 more
wiley   +1 more source

Fast-hyperspectral imaging remote sensing: Emission quantification of NO₂ and SO₂ from marine vessels. [PDF]

Light Sci Appl
Xing C, Wei S, Li Y, Jiao P, Liu C, Chen J, Wang W, Peng H, Song Y, Liu C.   +9 more
europepmc   +1 more source

In Situ Oil-Gas Separator Enabled Carrier-Free Photoacoustic Sensing of Acetylene. [PDF]

Sensors (Basel)
Dou W, Sun X, Gao Y, Wang S, Tao K, Li Y.   +5 more
europepmc   +1 more source

Research progress of online monitoring techniques for dissolved gas analysis in insulating oil. [PDF]

Front Chem
Mao H, Wang F, Wang J, Ma Z, Wang Y, Peng R, Geng Z, Lan X.   +7 more
europepmc   +1 more source

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Multi-pass quartz-enhanced photoacoustic spectroscopy-based trace gas sensing

Optics Letters, 2021
A multi-pass quartz-enhanced photoacoustic spectroscopy (MP-QEPAS)-based trace gas sensor is reported. In MP-QEPAS, a multi-pass laser beam pattern through the prong spacing of a quartz tuning fork (QTF) is obtained by means of two right-angle prisms.
Qiao, Shunda, Ma, Yufei, Patimisco, Pietro, Sampaolo, Angelo, He, Ying, Lang, Ziting, Tittel, Frank K., Spagnolo, Vincenzo   +7 more
openaire   +4 more sources

Low-power wireless trace gas sensing network

SPIE Proceedings, 2011
A basic wireless laser spectroscopic sensor network for monitoring of trace-gases will be presented. The prototype lowpower sensor nodes targeting carbon dioxide are based on tunable diode laser absorption spectroscopy and operate using a 2 μm VCSEL and a 3.5 m Herriott multi-pass cell.
Clinton J. Smith, Stephen So, Amir Khan, Mark A. Zondlo, Gerard Wysocki   +4 more
openaire   +1 more source

Remote Sensing and Trace Gas Fluxes

1990
Most of the chapters in this volume emphasize the dynamics of energy, water, and carbon at the surface of the earth. These are major processes in the metabolism of the planet, and it is reasonable to expect that thermal and optical remote sensing could detect at least energy transformations rather directly.
Pamela A. Matson, Peter M. Vitousek
openaire   +1 more source