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The seismically excited motion of high-Q pendula in gravitational-wave observatories sets a sensitivity limit to sub-audio gravitational-wave frequencies. Here, we report on the use of machine learning to predict the motion of a high-Q…

广义相对论与量子宇宙学 · 物理学 2023-08-11 Nicolas Heimann , Jan Petermann , Daniel Hartwig , Roman Schnabel , Ludwig Mathey

Turbulent fluctuations of the atmospheric refraction index, so-called optical turbulence, can significantly distort propagating laser beams. Therefore, modeling the strength of these fluctuations ($C_n^2$) is highly relevant for the…

大气与海洋物理 · 物理学 2023-08-11 Maximilian Pierzyna , Rudolf Saathof , Sukanta Basu

Particle detectors based on scintillators are widely used in high-energy physics and astroparticle physics experiments, nuclear medicine imaging, industrial and environmental detection, etc. Precisely extracting scintillation signal…

仪器与探测器 · 物理学 2025-05-28 Pengcheng Ai , Xiangming Sun , Zhi Deng , Xinchi Ran

Refractive scintillation effects are powerful techniques for discriminating between different models proposed for the electron density fluctuation spectrum in the ISM. Data from our long-term scintillation study of 18 pulsars in the DM…

天体物理学 · 物理学 2009-10-31 N. D. Ramesh Bhat , Yashwant Gupta , A. Pramesh Rao

Interstellar scintillation can be used to probe transverse sizes of radio sources on scales inaccessible to the nominal resolution of any terrestrial telescope, e.g. $\lesssim 10^{-6}$ arc sec. Methodology is presented that exploits this…

天体物理学 · 物理学 2007-05-23 J. M. Cordes

This research investigates the separation of Cherenkov and Scintillation light signals within a simulated Water-based Liquid Scintillator (WbLS) detector, utilizing the XGBoost machine learning algorithm. The simulation data were gathered…

仪器与探测器 · 物理学 2025-12-17 Ayse Bat

Accurate short-term forecasting of air temperature and relative humidity is critical for urban management, especially in topographically complex cities such as Chongqing, China. This study compares seven machine learning models: eXtreme…

机器学习 · 计算机科学 2026-03-25 Jiaqi Dong

Ionospheric irregularities and associated scintillations under geomagnetically active/quiet conditions have detrimental effects on the reliability and performance of space- and ground-based navigation satellite systems, especially over the…

空间物理 · 物理学 2024-10-24 Sumanjit Chakraborty , Abhirup Datta

Physics simulation results of natural processes usually do not fully capture the real world. This is caused for instance by limits in what physical processes are simulated and to what accuracy. In this work we propose and analyze the use of…

机器学习 · 计算机科学 2024-03-11 Stefanos Giaremis , Noujoud Nader , Clint Dawson , Hartmut Kaiser , Carola Kaiser , Efstratios Nikidis

Atmospheric turbulence strength (Cn2 parameter) sensing based on processing of intensity scintillation patterns with deep neural network (DNN) is considered. It is shown that DNN re-training with propagation distance change can be avoided…

大气与海洋物理 · 物理学 2022-10-06 G. A. Filimonov , M. A. Vorontsov

Density fluctuations in the ionised interstellar medium have a profound effect on radio pulsar observations, through angular scattering, intensity scintillations, and small changes in time delays from dispersion. Here we show that it is…

高能天体物理现象 · 物理学 2023-04-12 Daniel J. Reardon , William A. Coles

Radiation exposure at aviation altitudes presents significant health risks to aircrews due to the cumulative effects of ionizing radiation. Physics-based models estimate radiation levels based on geophysical and atmospheric parameters, but…

空间物理 · 物理学 2025-11-27 Sanjib K C , Viacheslav M Sadykov , Dustin Kempton

The midlatitude climate and weather are shaped by storms, yet the factors governing their predictability remain insufficiently understood. Here, we use a Convolutional Neural Network (CNN) to predict and quantify uncertainty in the…

大气与海洋物理 · 物理学 2025-10-30 Wuqiushi Yao , Or Hadas , Yohai Kaspi

Over the past 30 years, numerous large-scale photometric astronomical surveys have been conducted, including SDSS, Pan-STARRS, Gaia,2MASS, WISE, and others. These surveys provide extensive photometric measurements that can be used to infer…

天体物理仪器与方法 · 物理学 2025-11-03 Mateusz Kapusta

To create early warning capabilities for upcoming Space Weather disturbances, we have selected a dataset of 61 emerging active regions, which allows us to identify characteristic features in the evolution of acoustic power density to…

太阳与恒星天体物理 · 物理学 2024-12-25 Spiridon Kasapis , Irina N. Kitiashvili , Alexander G. Kosovichev , John T. Stefan , Bhairavi Apte

Observations of Interplanetary Scintillation (IPS) are an efficient remote-sensing method to study the solar wind and inner heliosphere. From 2016 to 2018, some distinctive observations of IPS sources like 3C 286 and 3C 279 were…

空间物理 · 物理学 2021-05-26 Li-Jia Liu , Bo Peng , Lei Yu , Ye-Zhao Yu , Ji-Guang Lu , Bin Liu , O. Chang , M. M. Bisi , FAST Collaboration

Forecasting the dynamics of chaotic systems from the analysis of their output signals is a challenging problem with applications in most fields of modern science. In this work, we use a laser model to compare the performance of several…

混沌动力学 · 物理学 2019-11-14 Pablo Amil , Miguel C. Soriano , Cristina Masoller

This short paper presents research findings on two learning-based methods for quantifying measurement uncertainties in global navigation satellite systems (GNSS). We investigate two learning strategies: offline learning for outlier…

机器人学 · 计算机科学 2025-03-10 Haoming Zhang

Here we present a "SCINDA-Iono" toolbox for the MATLAB. This is a software to analyze ionosphere scintillation indices provided by a SCINDA GNSS receiver. The toolbox is developed in the MATLAB R2018b. This software allows to preprocess the…

天体物理仪器与方法 · 物理学 2019-10-10 Tatiana Barlyaeva , Teresa Barata , Anna Morozova