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Leaky waves are an important class of waves, particularly for guiding waves along structures embedded within another medium; a mismatch in wavespeeds often leads to leakage of energy from the waveguide, or interface, into the medium, which…

流体动力学 · 物理学 2024-01-30 Evripides Georgiades , Michael J. S. Lowe , Richard V. Craster

We derive a simple analytical line integral expression for the relaxation volume tensor of an arbitrary interconnected dislocation network. This quantity determines the magnitude of dislocation contribution to the dimensional changes and…

材料科学 · 物理学 2022-10-13 Max Boleininger , Sergei L. Dudarev , Daniel R. Mason , Enrique Martínez

Randomness in the void distribution within a ductile metal complicates quantitative modeling of damage following the void growth to coalescence failure process. Though the sequence of micro-mechanisms leading to ductile failure is known…

应用物理 · 物理学 2023-11-14 I. Holte , K. L. Nielsen , E. Martínez-Pañeda , C. F. Niordson

The detection of leaks in pipeline transportation systems is a matter of serious concern for operators, who pursue the integrity of their assets, the reduction of losses and the prevention of environmental hazards. Whenever a hole occurs in…

机器学习 · 计算机科学 2022-02-01 Riccardo Angelo Giro , Giancarlo Bernasconi , Giuseppe Giunta , Simone Cesari

Timing side-channels are an important threat to cryptography that still needs to be addressed in implementations, and the advent of post-quantum cryptography raises this issue because the lattice-based schemes may produce secret-dependent…

密码学与安全 · 计算机科学 2025-12-30 Aayush Mainali , Sirjan Ghimire

In federated learning, multiple parties collaborate in order to train a global model over their respective datasets. Even though cryptographic primitives (e.g., homomorphic encryption) can help achieve data privacy in this setting, some…

密码学与安全 · 计算机科学 2020-11-13 Javad Ghareh Chamani , Dimitrios Papadopoulos

Fluid instabilities arise in a variety of contexts and are often unwanted results of engineering imperfections. In one particular model for a magnetized target fusion reactor, a pressure wave is propagated in a cylindrical annulus comprised…

流体动力学 · 物理学 2017-04-26 Michael Lindstrom

Electric power-systems are one of the most important critical infrastructures. In recent years, they have been exposed to extreme stress due to the increasing demand, the introduction of distributed renewable energy sources, and the…

物理与社会 · 物理学 2016-07-13 Antonio Scala , Pier Giorgio De Sanctis Lucentini

The rolling pad instability is caused by electromagnetic interactions in systems of horizontal layers with strongly different electric conductivities. We analyze the instability for a simplified model of a liquid metal battery (LMB), a…

流体动力学 · 物理学 2020-01-08 Linyan Xiang , Oleg Zikanov

We study theoretically the viscoelastic properties of sheared binary fluids that have strong dynamical asymmetry between the two components. The dynamical asymmetry arises due to asymmetry between the viscoelastic stresses, particularly the…

软凝聚态物质 · 物理学 2009-11-10 Vinay Dwivedi , Rajeev Ahluwalia , Turab Lookman , Avadh Saxena

It is well known experimentally that well-quenched amorphous solids exhibit a plastic instability in the form of a catastrophic shear localization at a well defined value of the external strain. The instability may develop to a shear-band…

软凝聚态物质 · 物理学 2015-02-05 Ashwin J. , Oleg Gendelman , Itamar Procaccia , Carmel Shor

Complex flow fields govern the deformation of polymers in various manufacturing processes. However, high flow rates may trigger reaction events (i.e., bond breaking or undesirable reaction of mechanophores) in raw polymeric materials,…

软凝聚态物质 · 物理学 2025-06-05 Mingchao Wang , Stephen Sanderson , Debra J. Searles

The fracture resistance of structures is optimised using the level-set method. Fracture resistance is assumed to be related to the elastic energy released by a crack propagating in a normal direction from parts of the boundary which are in…

材料科学 · 物理学 2007-05-23 V. J. Challis , A. P. Roberts , A. H. Wilkins

A dispersion equation for the interface waves has been derived for the interface of two cubic crystals in the plane perpendicular to [001]. A reasonable hypothesis has been made about the total number of the acoustic modes. Due to this…

介观与纳米尺度物理 · 物理学 2009-10-31 I. V. Ponomarev , A. L. Efros

We introduce a model for yielding, inspired by fracture models and the failure of a sheared granular medium in which the applied shear is resisted by self-organized force chains. The force chains in the granular medium (GM) are considered…

统计力学 · 物理学 2015-05-14 Fergal Dalton , Alberto Petri , Giorgio Pontuale

Dam breach models are commonly used to predict outflow hydrographs of potentially failing dams and are key ingredients for evaluating flood risk. In this paper a new dam breach modeling framework is introduced that shall improve the…

统计计算 · 统计学 2018-06-14 S. J. Peter , A. Siviglia , J. Nagel , S. Marelli , R. M. Boes , D. Vetsch , B. Sudret

As the span and width of continuous rigid bridges increase, the complexity of the spatial forces acting on these structures also grows, challenging traditional design methods. Primary beam theory often fails to accurately predict the…

The selective frequency damping method was applied to a bent flow. The method was used in an adaptive formulation. The most dangerous frequency was determined by solving an eigenvalue problem. It was found that one of the patterns,…

流体动力学 · 物理学 2020-11-06 Alexander V. Proskurin

Model ensembling is a well-established technique for improving the performance of machine learning models. Conventionally, this involves averaging the output distributions of multiple models and selecting the most probable label. This idea…

机器学习 · 计算机科学 2026-05-26 Jiale Fu , Yuchu Jiang , Peijun Wu , Chonghan Liu , Joey Tianyi Zhou , Xu Yang

Thermal cracking in urban underground sidewalls is frequently observed when structures are cast in summer and enter service in winter, as seasonal temperature gradients act under structural restraint. To quantify the local stress field…

计算物理 · 物理学 2025-12-10 Ziyan Zhao , Ting Peng , Peng Wu , Chaojun Hu , Qilin Yi , Chuangrui Huang , Junjie Niu , Xiaoxue Xu , Tao Li , Yuan Li