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Atmospheric interaction with light has been an area of fascination for many researchers over the last century. Environmental conditions, such as temperature and wind speed, heavily influence the complex and rapidly varying optical…

Anion exchange membranes (AEMs) are promising candidates for replacing proton exchange membranes (PEMs) in electrochemical devices such as fuel cells, electrolyzers, batteries, and osmotic energy extraction systems. However, optimizing the…

Near-surface air temperature is a key physical property of the Earth's surface. Although weather stations offer continuous monitoring and satellites provide broad spatial coverage, no single data source offers seamless data in a…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Shengjie Kris Liu , Siqin Wang , Lu Zhang

This paper is concerned with Eddy-Current (EC) nondestructive testing of conductive materials and focuses, in particular, on extending the well-known LinearSampling Method (LSM) to the case of EC equations. We first present the theoretical…

数值分析 · 数学 2021-09-22 H. Haddar , M. K. Riahi

One objective of a lander mission to Jupiter's icy moon Europa is to detect liquid water within 30 km as well as characterizing the subsurface ocean. In order to satisfy this objective, water within the ice shell must also be identified.…

Global data assimilation enables weather forecasting at all scales and provides valuable data for studying the Earth system. However, the computational demands of physics-based algorithms used in operational systems limits the volume and…

机器学习 · 计算机科学 2024-07-17 Thomas J. Vandal , Kate Duffy , Daniel McDuff , Yoni Nachmany , Chris Hartshorn

Recent advancements in foundation models have significantly impacted various fields, including natural language processing, computer vision, and multi-modal tasks. One area that stands to benefit greatly is Earth observation, where these…

计算机视觉与模式识别 · 计算机科学 2024-10-21 Yohei Nakayama , Jiawei Su , Luis M. Pazos-Outón

A maximum entropy method (MEM) is presented for separating the emission due to different foreground components from simulated satellite observations of the cosmic microwave background radiation (CMBR). In particular, the method is applied…

天体物理学 · 物理学 2009-10-30 MP Hobson , AW Jones , AN Lasenby , FR Bouchet

We present results demonstrating the time resolution and $\mu$/e separation capabilities with a new concept of an EAS detector capable for measurements of cosmic rays arriving with large zenith angles. This kind of detector has been…

天体物理仪器与方法 · 物理学 2015-06-23 M. Iori , H. Denizli , A. Yilmaz , F. Ferrarotto , J. Russ

In 21-cm experimental cosmology, accurate characterization of a radio telescope's antenna beam response is essential to measure the 21-cm signal. Computational electromagnetic (CEM) simulations estimate the antenna beam pattern and…

天体物理仪器与方法 · 物理学 2024-08-30 Joshua J. Hibbard , Bang D. Nhan , David Rapetti , Jack O. Burns

Airborne electromagnetic surveys may consist of hundreds of thousands of soundings. In most cases, this makes 3D inversions unfeasible even when the subsurface is characterized by a high level of heterogeneity. Instead, approaches based on…

地球物理 · 物理学 2021-09-29 Peng Bai , Giulio Vignoli , Thomas Mejer Hansen

The research works on the biological effects of electromagnetic (EM) radiation have increased globally. Computer simulation models were developed to assess exposure of square, rectangular, pyramidal, and cylindrical water containers to…

Transmission electron microscopy (TEM) is carried out in vacuum to minimize the interaction of the imaging electrons with gas molecules while passing through the microscope column. Nevertheless, in typical devices, the pressure remains at…

介观与纳米尺度物理 · 物理学 2019-01-25 Gregor T. Leuthner , Stefan Hummel , Clemens Mangler , Timothy J. Pennycook , Toma Susi , Jannik C. Meyer , Jani Kotakoski

The strong variations of energetic electron fluxes in the Earth's inner magnetosphere are notoriously hard to forecast. Developing accurate empirical models of electron fluxes from low to high altitudes at all latitudes is therefore useful…

The geometries of surface wave modes are determined by the highly nontrivial interplay of capillarity and wetting effects at the boundaries of their domain. Aside from idealised scenarios, this commonly leads to unknown boundary conditions,…

Electrical impedance tomography (EIT) is a noninvasive medical imaging modality utilizing the current-density/voltage data measured on the surface of the subject. Calder\'on's method is a relatively recent EIT imaging algorithm that is…

数值分析 · 数学 2023-11-01 Siyu Cen , Bangti Jin , Kwancheol Shin , Zhi Zhou

Anomaly detection for indoor air quality (IAQ) data has become an important area of research as the quality of air is closely related to human health and well-being. However, traditional statistics and shallow machine learning-based…

机器学习 · 计算机科学 2022-04-15 Yuanyuan Wei , Julian Jang-Jaccard , Wen Xu , Fariza Sabrina , Seyit Camtepe , Mikael Boulic

In this paper, we propose a novel approach for manifold learning that combines the Earthmover's distance (EMD) with the diffusion maps method for dimensionality reduction. We demonstrate the potential benefits of this approach for learning…

生物大分子 · 定量生物学 2022-05-24 Nathan Zelesko , Amit Moscovich , Joe Kileel , Amit Singer

Atmospheric turbulence, especially in the near-surface boundary layer is known to be under-sampled due to the need to capture a wide separation in length and time-scales and limitation in the number of sensors. Over the past decade, the use…

流体动力学 · 物理学 2018-07-13 Balaji Jayaraman , Sam Allison , He Bai

This study delves into the innovative landscape of metasurfaces, with a particular focus on their role in achieving EM illusion (EMI) a facet of paramount significance. The control of EM waves assumes a pivotal role in mitigating issues…

信号处理 · 电气工程与系统科学 2024-04-19 Hamidreza Taghvaee , Mohsen Khalily , Gabriele Gradoni , Rahim Tafazolli