Evaluation NO2 Detection Using Low-Cost Folded-Path Photometer
Journal of Mathematical and Fundamental Sciences, 2023 As it impacts both environmental and health conditions, the measurement of nitrogen dioxide (NO2) in industrial and residential areas needs comprehensive and reliable instrumentation providing long-interference-free operation and minimum maintenance and
Januar Arif Fatkhurrahman, Puji Lestari
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Estimation of NOx emissions from Delhi using Car MAX-DOAS observations and comparison with OMI satellite data [PDF]
Atmospheric Chemistry and Physics, 2011 We present the first Multi-Axis-(MAX-) DOAS observations in India performed during April 2010 and January 2011 in Delhi and nearby regions. The MAX-DOAS instrument was mounted on a car roof, which allowed us to perform measurements along individual ...
R. P. Singh +5 more
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Comparison of tropospheric NO2 columns from MAX-DOAS retrievals and regional air quality model simulations [PDF]
Atmospheric Chemistry and Physics, 2020 Multi-axis differential optical absorption spectroscopy (MAX-DOAS) tropospheric NO2 column retrievals from four European measurement stations are compared to simulations from five regional air quality models which contribute to the European regional ...
A.-M. Blechschmidt +23 more
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Measurement report: Aerosol vertical profiling over the Southern Great Barrier Reef using lidar and MAX-DOAS measurements [PDF]
Atmospheric Chemistry and PhysicsAerosol vertical profile measurements were made using a Multi-Axis Differential Optical Absorption Spectrometer (MAX-DOAS) and Mini Micro Pulse Lidar (MPL) at One Tree Island in the Southern Great Barrier Reef from February to April 2023.
R. G. Ryan +6 more
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Off-grid Direction of Arrival Estimation Using Sparse Bayesian Inference
, 2012 Direction of arrival (DOA) estimation is a classical problem in signal processing with many practical applications. Its research has recently been advanced owing to the development of methods based on sparse signal reconstruction.
Xie, Lihua, Yang, Zai, Zhang, Cishen
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Acoustic simultaneous localization and mapping (A-SLAM) of a moving microphone array and its surrounding speakers [PDF]
, 2016 Acoustic scene mapping creates a representation of positions of audio sources such as talkers within the surrounding environment of a microphone array.
Evers, C, Moore, AH, Naylor, PA
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Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Design and Construction of Differential Optical Absorption Spectroscopy (DOAS) System for NOx Remote Sensing [PDF]
Engineering and Technology Journal, 2016 Differential Optical Absorption Spectroscopy (DOAS) technique is one of the methods used for measurement, analysis and managing air pollution, studying the chemical properties of trace gases in the atmosphere, identification of critical (peak) values to ...
Mehdi M. Shellal +2 more
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A SVM-Based Multi-Resolution Procedure for the Estimation of the DOAS of Interfering Signals in a Communication System [PDF]
, 2011 In this work, the use of a planar antenna system for the estimation of the directions of arrivals (DOAs) of multiple signals impinging on the receiver has been considered.
Azaro, Renzo +4 more
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Retrieval of NO2 Column Amounts from Ground-Based Hyperspectral Imaging Sensor Measurements [PDF]
, 2019 Total column amounts of NO2 (TCN) were estimated from ground-based hyperspectral imaging sensor (HIS) measurements in a polluted urban area (Seoul, Korea) by applying the radiance ratio fitting method with five wavelength pairs from 400 to 460 nm.
Anderson +11 more
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