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In a granular gas experiment of magnetized particles confined in a thin layer, the rate of dissipative collisions is tuned by adjusting the amplitude of an external magnetic field. The velocity statistics are analyzed using the dynamic and…

Soft Condensed Matter · Physics 2020-04-22 Gustavo Castillo , Simon Merminod , Eric Falcon , Michael Berhanu

If a single line of sight (LOS) intercepts multiple dust clouds of different spectral energy distributions and magnetic field orientations, the frequency scaling of each of the Stokes $Q$ and $U$ parameters of thermal dust emission may be…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-10 V. Pelgrims , S. E. Clark , B. S. Hensley , G. V. Panopoulou , V. Pavlidou , K. Tassis , H. K. Eriksen , I. K. Wehus

Prioritizing methane for near-term climate action is crucial due to its significant impact on global warming. Previous work used columnwise matched filter products from the airborne AVIRIS-NG imaging spectrometer to detect methane plume…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Vassiliki Mancoridis , Brian Bue , Jake H. Lee , Andrew K. Thorpe , Daniel Cusworth , Alana Ayasse , Philip G. Brodrick , Riley Duren

Precisely locating low-frequency oscillation sources is the prerequisite of suppressing sustained oscillation, which is an essential guarantee for the secure and stable operation of power grids. Using synchrophasor measurements, a machine…

Signal Processing · Electrical Eng. & Systems 2017-11-13 Yao Meng , Zhe Yu , Di Shi , Desong Bian , Zhiwei Wang

Airborne dust plays an active role in determining the thermal structure and chemical composition of the present-day atmosphere of Mars and possibly the planet's climate evolution over time through radiative--convective and cloud…

Earth and Planetary Astrophysics · Physics 2023-09-06 Ananyo Bhattacharya , Cheng Li , Nilton O. Renno , Sushil K. Atreya , David Sweeney

We investigate the interaction between a shock-driven hot wind and a cold multi-cloud layer, for conditions commonly found in interstellar and circumgalactic gas. We present a method for identifying distinct clouds using a…

Considerable financial resources are allocated for measuring ambient air pollution in the United States, yet the locations for these monitoring sites may not be optimized to capture the full extent of current pollution variability. Prior…

Applications · Statistics 2022-02-18 Makoto M. Kelp , Samuel Lin , J. Nathan Kutz , Loretta J. Mickley

Gaseous detectors are widely used in high energy physics, and are attractive choices in tracking systems for cosmic muon imaging, also called muography. Such detectors offer high resolution and high efficiency at reasonable cost for large…

Instrumentation and Detectors · Physics 2021-06-30 Gábor Nyitrai , Gergő Hamar , Dezső Varga

We report in situ measurements of density fluctuations in a quasi one dimensional Bose gas at thermal equilibrium in an elongated harmonic trap. We observe an excess of fluctuations compared to the shot noise level expected for uncorrelated…

The large majority of high energy sources detected with Fermi-LAT are blazars, which are known to be very variable sources. High cadence long-term monitoring simultaneously at different wavelengths being prohibitive, the study of their…

Instrumentation and Methods for Astrophysics · Physics 2017-11-29 J. -P. Lenain

Flux sampling is an analysis that, based on a distribution, picks randomly an efficient number of points from the solution space of a metabolic model. Unlike most constraint-based analyses, flux sampling does not require an objective…

Molecular Networks · Quantitative Biology 2026-04-01 Haris Zafeiropoulos , Daniel Rios Garza

We address the problem of inferring the location of a target that releases odor in the presence of turbulence. Input for the inference is provided by many sensors scattered within the odor plume. Drawing inspiration from distributed…

Biological Physics · Physics 2026-01-13 Francesco Marcolli , Martin James , Agnese Seminara

We present preliminary results from our on-going study: Comparing and optimizing source detection procedures for XMM images. By constructing realistic spatial and spectral source distributions and ``observing'' these through the XMM Science…

Astrophysics · Physics 2007-05-23 Jesper Rasmussen , Kristian Pedersen , Martin Gotz

Identification and quantification of trace gas sources is a major challenge for understanding and regulating air quality and greenhouse gas emissions. Current approaches either provide continuous but localized monitoring, or…

Chemical multisensor devices need calibration algorithms to estimate gas concentrations. Their possible adoption as indicative air quality measurements devices poses new challenges due to the need to operate in continuous monitoring modes…

Artificial Intelligence · Computer Science 2020-02-14 S. De Vito , E. Esposito , M. Salvato , O. Popoola , F. Formisano , R. Jones , G. Di Francia

Gas source localization is pivotal for the rapid mitigation of gas leakage disasters, where mobile robots emerge as a promising solution. However, existing methods predominantly schedule robots' movements based on reactive stimuli or…

Volcanoes emit large amounts of CO2, directly influencing human lives. Mapping volcanic gas emissions helps to forecast eruptions and understand the impact of volcanoes on climate and the environment. Drone-based gas sensing significantly…

A new set-up to measure acoustic wave velocities through deforming rock samples at high pressures (up to 1000 MPa), temperatures (up to 700$^\circ$C) and differential stress (up to 1500 MPa) has been developed in a recently refurbished gas…

Geophysics · Physics 2022-06-01 Christopher Harbord , Nicolas Brantut , Emmanuel David , Thomas Mitchell

The Millimeter-wave Intensity Mapping Experiment (mmIME) recently reported a detection of excess spatial fluctuations at a wavelength of 3 mm, which can be attributed to unresolved emission of several CO rotational transitions between…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-20 Patrick C. Breysse , Shengqi Yang , Rachel S. Somerville , Anthony R. Pullen , Gergö Popping , Abhishek S. Maniyar

Luminescence-based sensors for measuring oxygen concentration are widely used both in industry and research due to the practical advantages and sensitivity of this type of sensing. The measuring principle is the luminescence quenching by…

Signal Processing · Electrical Eng. & Systems 2020-08-31 Umberto Michelucci , Michael Baumgartner , Francesca Venturini
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