中文
相关论文

相关论文: Leveraging the Mathematics of Shape for Solar Magn…

200 篇论文

Among the eruptive activity phenomena observed on the Sun, the most technology threatening ones are flares with associated coronal mass ejections (CMEs) and solar energetic particles (SEPs). Flares with associated CMEs and SEPs are produced…

In this paper we present two examples of recent investigations that we have undertaken, applying Machine Learning (ML) neural networks (NN) to image datasets from outer planet missions to achieve feature recognition. Our first investigation…

Most solar applications and systems can be reliably used to generate electricity and power in many homes and offices. Recently, there is an increase in many solar required systems that can be found not only in electricity generation but…

机器学习 · 计算机科学 2021-04-07 Shahriar Rahman , Shazzadur Rahman , A K M Bahalul Haque

Among several heliophysical and geophysical quantities, the accurate evolution of the solar irradiance is fundamental to forecast the evolution of the neutral and ionized components of the Earth's atmosphere.We developed an artificial…

太阳与恒星天体物理 · 物理学 2011-11-23 Luis Eduardo A. Vieira , Thierry Dudok de Wit , Matthieu Kretzschmar

Without any doubt solar flaring loops possess a multi-thread internal structure that is poorly resolved and there are no means to observe heating episodes and thermodynamic evolution of the individual threads. These limitations cause…

太阳与恒星天体物理 · 物理学 2015-11-04 R. Falewicz , P. Rudawy , K. Murawski , A. K. Srivastava

The issue of predicting solar flares is one of the most fundamental in physics, addressing issues of plasma physics, high-energy physics, and modelling of complex systems. It also poses societal consequences, with our ever-increasing need…

太阳与恒星天体物理 · 物理学 2014-11-20 R. T. James McAteer , Peter T. Gallagher , Paul A. Conlon

Disturbances in space weather can negatively affect several fields, including aviation and aerospace, satellites, oil and gas industries, and electrical systems, leading to economic and commercial losses. Solar flares are the most…

太阳与恒星天体物理 · 物理学 2020-05-07 T. Cinto , A. L. S. Gradvohl , G. P. Coelho , A. E. A. da Silva

The growth rate of structural defects in nuclear fuels under irradiation is intrinsically related to the diffusion rates of the defects in the fuel lattice. The generation and growth of atomistic structural defects can significantly alter…

In recent years, the increasing threat of devastating wildfires has underscored the need for effective prescribed fire management. Process-based computer simulations have traditionally been employed to plan prescribed fires for wildfire…

Solar flares are transient yet dramatic events in the atmosphere of the Sun, during which a vast amount of magnetic energy is liberated. This energy is subsequently transported through the solar atmosphere or into the heliosphere, and…

太阳与恒星天体物理 · 物理学 2022-12-14 Graham S. Kerr

Machine learning (ML) is a revolutionary technology with demonstrable applications across multiple disciplines. Within the Earth science community, ML has been most visible for weather forecasting, producing forecasts that rival modern…

The 'standard solar' flare model collects all physical ingredients identified by multi-wavelength observations of our Sun: magnetic reconnection, fast particle acceleration and the resulting emission at various wavelengths, especially in…

太阳与恒星天体物理 · 物理学 2020-06-24 Wenzhi Ruan , Chun Xia , Rony Keppens

We present a complete set of chemo-structural descriptors to significantly extend the applicability of machine-learning (ML) in material screening and mapping energy landscape for multicomponent systems. These new descriptors allow…

材料科学 · 物理学 2018-08-08 Kamal Choudhary , Brian DeCost , Francesca Tavazza

Magnetic flux ropes (MFRs) are thought to be the central structure of solar eruptions, and their ideal MHD instabilities can trigger the eruption. Here we performed a study of all the MFR configurations that lead to major solar flares,…

太阳与恒星天体物理 · 物理学 2019-11-06 Aiying Duan , Chaowei Jiang , Wen He , Xueshang Feng , Peng Zou , Jun Cui

This study explores the integration of machine learning (ML) techniques with large eddy simulation (LES) for predicting species mass fraction and flame characteristics in partially premixed turbulent jet flames. The LES simulations,…

流体动力学 · 物理学 2025-05-05 Amirali Shateri , Zhiyin Yang , Jianfei Xie

Space weather events may cause damage to several fields, including aviation, satellites, oil and gas industries, and electrical systems, leading to economic and commercial losses. Solar flares are one of the most significant events, and…

太阳与恒星天体物理 · 物理学 2020-06-25 T. Cinto , A. L. S. Gradvohl , G. P. Coelho , A. E. A. da Silva

We have developed a general framework for modeling gyrosynchrotron and free-free emission from solar flaring loops and used it to test the premise that 2D maps of source parameters, particularly magnetic field, can be deduced from spatially…

太阳与恒星天体物理 · 物理学 2015-06-15 Dale E. Gary , Gregory D. Fleishman , Gelu M. Nita

Predicting mechanical properties in metal additive manufacturing (MAM) is essential for ensuring the performance and reliability of printed parts, as well as their suitability for specific applications. However, conducting experiments to…

机器学习 · 计算机科学 2024-11-01 Parand Akbari , Masoud Zamani , Amir Mostafaei

Solar irradiance is fundamental data crucial for analyses related to weather and climate. High-precision estimation models are necessary to create areal data for solar irradiance. In this study, we developed a novel estimation model by…

大气与海洋物理 · 物理学 2024-07-08 Jun Sasaki , Maki Okada , Kenji Utsunomiya , Koji Yamaguchi

Machine learning (ML) is becoming a critical tool for interrogation of large complex data. Labeling, defined as the process of adding meaningful annotations, is a crucial step of supervised ML. However, labeling datasets is time consuming.…

太阳与恒星天体物理 · 物理学 2023-08-30 Subhamoy Chatterjee , Andrés Muñoz-Jaramillo , Derek A. Lamb