中文
相关论文

相关论文: Overview of HiFi -- implicit spectral element code…

200 篇论文

The paper demonstrates the possibility to use ANSYS HFSS as a versatile simulating tool for antennas facing inhomogeneous anisotropic magnetized plasmas in the Ion Cyclotron Range of Frequencies (ICRF). The methodology used throughout the…

等离子体物理 · 物理学 2023-09-26 V. Maquet , R. Ragona , D. Van Eester , J. Hillairet , F. Durodie

Hyperspectral imaging (HSI) captures spatial information along with dense spectral measurements across numerous narrow wavelength bands. This rich spectral content has the potential to facilitate robust robotic perception, particularly in…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Juana Valeria Hurtado , Rohit Mohan , Abhinav Valada

We present an immersed boundary method to simulate the creeping motion of a rigid particle in a fluid described by the Stokes equations discretized thanks to a finite element strategy on unfitted meshes, called Phi-FEM, that uses the…

数值分析 · 数学 2023-01-30 Michel Duprez , Vanessa Lleras , Alexei Lozinski

We present HSIM: a dedicated pipeline for simulating observations with the HARMONI integral field spectrograph on the European Extremely Large Telescope. HSIM takes high spectral and spatial resolution input data-cubes, encoding physical…

天体物理仪器与方法 · 物理学 2015-09-30 S. Zieleniewski , N. Thatte , S. Kendrew , R. C. W. Houghton , A. M. Swinbank , M. Tecza , F. Clarke , T. Fusco

Particle-in-Cell (PIC) simulation codes have wide applicability to first-principles modeling of multidimensional nonlinear plasma phenomena, including wake-field accelerators. This review addresses both finite difference and pseudo-spectral…

等离子体物理 · 物理学 2014-08-07 Brendan B. Godfrey

Hyperspectral imaging (HSI) captures spatial and spectral data, enabling analysis of features invisible to conventional systems. The technology is vital in fields such as weather monitoring, food quality control, counterfeit detection,…

计算机视觉与模式识别 · 计算机科学 2025-02-12 David S. Bhatti , Yougin Choi , Rahman S M Wahidur , Maleeka Bakhtawar , Sumin Kim , Surin Lee , Yongtae Lee , Heung-No Lee

We investigate the spectral properties of plasma turbulence from fluid to sub-ion scales by means of high-resolution three-dimensional (3D) numerical simulations performed with the hybrid particle-in-cell (HPIC) code CAMELIA. We produce…

太阳与恒星天体物理 · 物理学 2018-11-05 L. Franci , P. Hellinger , M. Guarrasi , C. H. K. Chen , E. Papini , A. Verdini , L. Matteini , S. Landi

Transformers have become the architecture of choice for learning long-range dependencies, yet their adoption in hyperspectral imaging (HSI) is still emerging. We reviewed more than 300 papers published up to 2025 and present the first…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Guyang Zhang , Waleed Abdulla

Hyperspectral imaging (HSI) classification is a critical tool with widespread applications across diverse fields such as agriculture, environmental monitoring, medicine, and materials science. Due to the limited availability of high-quality…

计算机视觉与模式识别 · 计算机科学 2025-10-10 Rafin Hassan , Zarin Tasnim Roshni , Rafiqul Bari , Alimul Islam , Nabeel Mohammed , Moshiur Farazi , Shafin Rahman

Electromagnetic waves undergo modifications as they propagate through plasma. We present EMPI (ElectroMagnetic-wave Plasma Interaction), a three-dimensional numerical framework designed to simulate the interaction between radio signals and…

高能天体物理现象 · 物理学 2025-06-04 Nan Xu , He Gao , Yuan-Pei Yang , Bing Zhang , Wei-Yang Wang , Tian-Cong Wang , Ran Gao

Multi-object multi-part scene segmentation is a challenging task whose complexity scales exponentially with part granularity and number of scene objects. To address the task, we propose a plug-and-play approach termed OLAF. First, we…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Pranav Gupta , Rishubh Singh , Pradeep Shenoy , Ravikiran Sarvadevabhatla

In this paper we describe the semi-spectral linear MHD (SLiM) code which we have written to follow the interaction of linear waves through an inhomogeneous three-dimensional solar atmosphere. The background model allows almost arbitrary…

太阳与恒星天体物理 · 物理学 2010-02-12 R. Cameron , L. Gizon , K. Daiffallah

A heat flux deposition code is a very useful tool for the design of plasma-facing components. The classical cosine model representative of the convective parallel heat flux was coded within the standard finite element code of the CEA Castem…

等离子体物理 · 物理学 2021-02-24 R. Mitteau , A. Moal , J. Schlosser , D. Guilhem

One of the major issues in the computational mechanics is to take into account the geometrical complexity. To overcome this difficulty and to avoid the expensive mesh generation, geometrically unfitted methods, i.e. the numerical methods…

Spatial transcriptomics (ST) bridges gene expression and tissue morphology but faces clinical adoption barriers due to technical complexity and prohibitive costs. While computational methods predict gene expression from H&E-stained…

计算机视觉与模式识别 · 计算机科学 2025-11-20 Ziqiao Weng , Yaoyu Fang , Jiahe Qian , Xinkun Wang , Lee AD Cooper , Weidong Cai , Bo Zhou

Speech foundation models (SFMs) have demonstrated strong performance across a variety of downstream tasks, including speech intelligibility prediction for hearing-impaired people (SIP-HI). However, optimizing SFMs for SIP-HI has been…

人工智能 · 计算机科学 2025-05-14 Haoshuai Zhou , Boxuan Cao , Changgeng Mo , Linkai Li , Shan Xiang Wang

Recent advances in implicit neural representations (INRs) have shown significant promise in modeling visual signals for various low-vision tasks including image super-resolution (ISR). INR-based ISR methods typically learn continuous…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Yuxuan Jiang , Ho Man Kwan , Tianhao Peng , Ge Gao , Fan Zhang , Xiaoqing Zhu , Joel Sole , David Bull

In this work, we bridge standard adaptive mesh refinement and coarsening on scalable octree background meshes and robust unfitted finite element formulations for the automatic and efficient solution of large-scale nonlinear solid mechanics…

数值分析 · 数学 2021-09-01 Santiago Badia , Manuel Caicedo , Alberto F. Martín , Javier Principe

Hyperspectral imaging (HSI) provides rich spectral information for precise material classification and analysis; however, its high dimensionality introduces a computational burden and redundancy, making dimensionality reduction essential.…

人工智能 · 计算机科学 2025-09-03 Salma Haidar , José Oramas

We present an object-oriented geophysical and astrophysical spectral-element adaptive refinement (GASpAR) code for application to turbulent flows. Like most spectral-element codes, GASpAR combines finite-element efficiency with…

数值分析 · 数学 2009-11-11 Duane Rosenberg , Aime' Fournier , Paul Fischer , Annick Pouquet