Results 91 to 100 of about 2,611 (211)

Watching Radical Geography: Spaces and Practices of Authoritarian Surveillance in ‘Democratic’ and ‘Dictatorial’ Brazil

Antipode, Volume 58, Issue 1, January 2026.
ABSTRACT This paper addresses stories of surveillance of Brazilian critical/radical geographers, drawing on innovative sources. That is, the folders and reports through which the political police and related institutions watched critical and radical scholars during the 20th century in all Brazilian states and abroad, under both ‘dictatorial’ and ...
Federico Ferretti, Guilherme Ribeiro
wiley   +1 more source

Adversarial Attack Detection in Federated Learning Using Quantum Recurrent Neural Network

Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
Adversarial attacks in network systems manipulate data to deceive networks, impacting domains like image recognition and natural language processing. Attackers exploit algorithm weaknesses, creating misleading inputs that lead to inaccurate outcomes.
Venkat R., Prakash M., Rajeswari Rajesh Immanuel, K. Sampath Kumar, N. Duraimutharasan, Balasubramaniam S., Sivakumar T. A., Zhaocai Wang   +7 more
wiley   +1 more source

MAX-DOAS detection of glyoxal during ICARTT 2004

Atmospheric Chemistry and Physics, 2007
The direct detection of glyoxal (CHOCHO), the smallest α-dicarbonyl, in the open atmosphere by active differential optical absorption spectroscopy (DOAS) has recently been demonstrated (Volkamer et al., 2005a) and triggered the very recent successful detection of CHOCHO from space (Kurosu et al., 2005; Wittrock et al., 2006; Beirle et al., 2006).
R. Sinreich, R. Volkamer, R. Volkamer, F. Filsinger, F. Filsinger, U. Frieß, C. Kern, U. Platt, O. Sebastián, T. Wagner, T. Wagner   +10 more
openaire   +1 more source

Explainable Optimized LSTM Model for Sustainable Wind Power Forecasting in Smart Cities

International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.
Accurate wind‐power forecasting is essential for the successful integration of renewable energy into smart city grids. Traditional long short‐term memory (LSTM) networks face significant challenges in parameter optimization, leading to suboptimal forecasting performance.
Abdulaziz Shehab, Mahmoud Abdel-Salam, Abdulrahman Alyami, Ibrahim M. El-Hasnony, Said El Kafhali   +4 more
wiley   +1 more source

Evaluation and Application of Max-DOAS Methods for Monitoring Aerosols, NO2, and SO2 in Urban and Industrial Environments [PDF]

, 2020
The ideal measurement technique to effectively address an air quality problem depends on the chemical and physical properties of the species and its environment.
Davis, Zoe Yun Wan
core  

A laboratory characterisation of inorganic iodine emissions from the sea surface: dependence on oceanic variables and parameterisation for global modelling [PDF]

, 2014
Reactive iodine compounds play a significant role in the atmospheric chemistry of the oceanic boundary layer by influencing the oxidising capacity through catalytically removing O3 and altering the HOx and NOx balance.
Carpenter, LJ, Chance, R, Gómez Martín, JC, Macdonald, SM, Plane, JMC, Saiz-Lopez, A, Warriner, S   +6 more
core   +2 more sources

Uncertainty‐Aware Machine Learning Bias Correction and Filtering for OCO‐2. 2

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Quality filtering of satellite XCO2 retrievals is essential for every downstream science application, yet the community still grapples with the trade‐off between retaining data availability and suppressing biases. For the Orbiting Carbon Observatory‐2 (OCO‐2) record in particular, the long‐standing binary quality flag targets the single use ...
William Keely, Steffen Mauceri, Robert Nelson, Josh Laughner, Christopher W. O’Dell, Steven Massie, David Baker, Matthäus Kiel, Otto Lamminpää, Jonathan Hobbs, Abhishek Chatterjee, Tommy Taylor, Paul Wennberg, Sean Crowell, Britt Stephens, Vivienne Payne   +15 more
wiley   +1 more source

Summertime Diurnal Variability of Formaldehyde Over the Contiguous United States: Constraints From Pandonia Global Network

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract The diurnal cycle of Formaldehyde (HCHO) provide critical insights into tropospheric photochemistry. Here we use tropospheric HCHO retrievals from the Pandonia Global Network (PGN), combined with NASA's GEOS Composition Forecast (GEOS‐CF) model to understand the diurnal variation of summertime HCHO across the contiguous US.
Tianlang Zhao, Jingqiu Mao, Xiaoyi Zhao, Apoorva Pandey, Viral Shah, Katherine Emma Knowland, Jennifer Kaiser, Martin Tiefengraber, Manuel Gebetsberger, Alexander Cede, Elena Spinei, Thomas F. Hanisco   +11 more
wiley   +1 more source

Ground-based FTIR and MAX-DOAS observations of formaldehyde at Réunion Island and comparisons with satellite and model data [PDF]

Atmospheric Chemistry and Physics, 2009
Formaldehyde (HCHO) columns have been retrieved from ground-based Fourier transform infrared (FTIR) campaign measurements in 2004 and 2007 and from UV-Visible MAX-DOAS measurements in 2004–2005 at the NDACC site of Réunion Island (21° S, 55& ...
M. Van Roozendael, M. De Mazière, J.-F. Müller, M. Carleer, J.-M. Metzger, S. Fally, C. Senten, G. Vanhaelewyn, F. Scolas, C. Hermans, A. Merlaud, B. Dils, I. De Smedt, F. Hendrick, T. Stavrakou, C. Vigouroux   +15 more
doaj  

Enhanced tropospheric BrO concentrations over the Antarctic sea ice belt in mid winter observed from MAX-DOAS observations on board the research vessel Polarstern

, 2007
International audienceWe present Multi AXis-Differential Optical Absorption Spectroscopy (MAX-DOAS) observations of tropospheric BrO carried out on board the German research vessel Polarstern during the Antarctic winter 2006.
Friess, U., Ibrahim, O., Platt, U., Sinreich, R., Wagner, T.   +4 more
core   +1 more source