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Accurately determining the underlying physical parameters of individual elements in integrated photonics is increasingly difficult as device architectures become more complex. Inferring these parameters directly from spectral measurements…

The sensitivity of thin-film materials and devices to defects motivates extensive research into the optimization of film morphology. This research could be accelerated by automated experiments that characterize the response of film…

Machine learning is applied to a large number of modern devices that are essential in building energy efficient smart society. Audio and face recognition are among the most well-known technologies that make use of such artificial…

介观与纳米尺度物理 · 物理学 2021-02-02 Masashi Kawaguchi , Kenji Tanabe , Keisuke Yamada , Takuya Sawa , Shun Hasegawa , Masamitsu Hayashi , Yoshinobu Nakatani

Images of surface topography of ultrathin magnetic films have been used for Monte Carlo simulations in the framework of the ferromagnetic Ising model to study the hysteresis and thermal properties of nanomaterials. For high performance…

材料科学 · 物理学 2015-03-20 V. Yu. Kapitan , K. V. Nefedev

Deep neural networks have become increasingly of interest in dynamical system prediction, but out-of-distribution generalization and long-term stability still remains challenging. In this work, we treat the domain parameters of dynamical…

机器学习 · 计算机科学 2023-06-02 Stathi Fotiadis , Mario Lino , Shunlong Hu , Stef Garasto , Chris D Cantwell , Anil Anthony Bharath

Spatio-temporal forecasting is challenging attributing to the high nonlinearity in temporal dynamics as well as complex location-characterized patterns in spatial domains, especially in fields like weather forecasting. Graph convolutions…

机器学习 · 计算机科学 2021-12-14 Haitao Lin , Zhangyang Gao , Yongjie Xu , Lirong Wu , Ling Li , Stan. Z. Li

Topological data analysis (TDA) is a versatile tool that can be used to extract scientific knowledge from complex pattern formation processes. However, the physics correspondence between the features obtained from TDA and pattern dynamics…

斑图形成与孤子 · 物理学 2024-07-09 Yoh-ichi Mototake , Masaichiro Mizumaki , Kazue Kudo , Kenji Fukumizu

We wish to understand the macroscopic plastic behaviour of metals by upscaling the micro-mechanics of dislocations. We consider a highly simplified dislocation network, which allows our microscopic model to be a one dimensional particle…

数学物理 · 物理学 2019-02-20 P. van Meurs , A. Muntean , M. A. Peletier

Encoding metal plasticity captured from high-resolution digital image correlation (DIC) can be leveraged to predict a wide range of monotonic and cyclic macroscopic properties of metallic materials. To capture the spatial heterogeneity of…

材料科学 · 物理学 2025-03-26 Mathieu Calvat , Chris Bean , Dhruv Anjaria , Haoren Wang , Kenneth Vecchio , J. C. Stinville

Crystal property prediction, governed by quantum mechanical principles, is computationally prohibitive to solve exactly for large many-body systems using traditional density functional theory. While machine learning models have emerged as…

材料科学 · 物理学 2026-01-28 Bin Cao , Yang Liu , Longhan Zhang , Yifan Wu , Zhixun Li , Yuyu Luo , Hong Cheng , Yang Ren , Tong-Yi Zhang

Isolating the features associated with different materials growth conditions is important to facilitate the tuning of these conditions for effective materials growth and characterization. This study presents machine learning models for…

材料科学 · 物理学 2024-02-05 Isaiah A. Moses , Wesley F. Reinhart

We report the development of a hybrid numerical / analytical model capable of mapping the spatially-varying distributions of the local ferromagnetic resonance (FMR) frequency and dynamic magnetic susceptibility in a wide class of patterned…

介观与纳米尺度物理 · 物理学 2019-05-29 C. S. Davies , V. D. Poimanov , V. V. Kruglyak

Due to the lack of phase information, determining the physical parameters of multilayer thin films from measured neutron and X-ray reflectivity curves is, on a fundamental level, an underdetermined inverse problem. This so-called phase…

Polarized neutron reflectometry (PNR) has long been applied to measure the magnetic depth profile of thin films. In recent years, interest has increased in observing lateral magnetic structures in a film. While magnetic arrays patterned by…

介观与纳米尺度物理 · 物理学 2009-11-07 W. -T. Lee , S. G. E. te Velthuis , G. P. Felcher , F. Klose , T. Gredig , D. Dahlberg , B. V. Toperverg

The use of machine learning methods for accelerating the design of crystalline materials usually requires manually constructed feature vectors or complex transformation of atom coordinates to input the crystal structure, which either…

材料科学 · 物理学 2018-04-10 Tian Xie , Jeffrey C. Grossman

Magnetic Particle Imaging is an emerging imaging modality through which it is possible to detect tracers containing superparamagnetic nanoparticles. The exposure of the particles to dynamic magnetic fields generates a non-linear response…

数值分析 · 数学 2024-06-19 Vladyslav Gapyak , Thomas März , Andreas Weinmann

Fine-grained action detection is an important task with numerous applications in robotics and human-computer interaction. Existing methods typically utilize a two-stage approach including extraction of local spatio-temporal features…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Khoi-Nguyen C. Mac , Dhiraj Joshi , Raymond A. Yeh , Jinjun Xiong , Rogerio S. Feris , Minh N. Do

The modeling of realistic magnetic materials requires the inclusion of defects. Based on the pseudospectral Landau-Lifshitz description of magnetisation dynamics, we propose a statistical model that takes into account defects, specifically…

介观与纳米尺度物理 · 物理学 2026-03-12 C. Eagan , M. Copus , E. Iacocca

Mathematical modelling has become an established tool for studying the dynamics of biological systems. Current applications range from building models that reproduce quantitative data to identifying systems with predefined qualitative…

分子网络 · 定量生物学 2018-02-07 Carsten Conradi , Elisenda Feliu , Maya Mincheva , Carsten Wiuf

We develop a polycrystal graph neural network (PGNN) model for predicting the effective properties of polycrystalline materials, using the Li7La3Zr2O12 ceramic as an example. A large-scale dataset with >5000 different three-dimensional…

材料科学 · 物理学 2023-06-09 Minyi Dai , Mehmet F. Demirel , Xuanhan Liu , Yingyu Liang , Jia-Mian Hu