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The large amplitude oscillatory shear (LAOS) has been extensively studied for understanding the rheological responses of yield stress fluids. However, the employed methodology for determining the yield stress remains uncertain albeit the…

流体动力学 · 物理学 2023-12-15 Pengguang Wang , Jiatong Xu , Hongbin Zhang

Large Amplitude Oscillatory Shear (LAOS) is a key technique for characterizing nonlinear viscoelasticity in a wide range of materials. Most research to date has focused on the shear stress response to an oscillatory strain input. However,…

软凝聚态物质 · 物理学 2026-04-14 Nicholas King , Eugene Pashkovski , Reid Patterson , Paige Rockwell , Gareth H. McKinley

We introduce a comprehensive scheme to physically quantify both viscous and elastic rheological nonlinearities simultaneously, using an imposed large amplitude oscillatory shear (LAOS) strain. The new framework naturally lends a physical…

软凝聚态物质 · 物理学 2008-11-18 Randy H. Ewoldt , Gareth H. McKinley , A. E. Hosoi

A large amplitude oscillatory shear (LAOS) is considered in the strain-controlled regime, and the interrelation between the Fourier transform (FT) and the stress decomposition (SD) approaches is established. Several definitions of the…

流体动力学 · 物理学 2017-11-22 Ivan Argatov , Alexei Iantchenko , Vitaly Kocherbitov

We study shear banding in soft glassy materials subject to a large amplitude oscillatory shear flow (LAOS). By numerical simulations of the widely used soft glassy rheology model, supplemented by more general physical arguments, we…

软凝聚态物质 · 物理学 2016-11-02 Rangarajan Radhakrishnan , Suzanne M. Fielding

We investigate the nonlinear viscoelastic behavior of a colloidal dispersion at the critical gel state using large amplitude oscillatory shear (LAOS) rheology. The colloidal gel at the critical point is subjected to oscillatory shear flow…

软凝聚态物质 · 物理学 2023-02-15 Khushboo Suman , Sachin Shanbhag , Yogesh M. Joshi

This study presents an experimental framework for large amplitude oscillatory extension (LAOE) to investigate nonlinear material properties of complex fluids. Using a microfluidic optimized shape cross-slot extensional rheometer, we…

Local Oscillatory Rheology from Echography (LORE) consists in a traditional rheology experiment synchronized with high-frequency ultrasonic imaging which gives access to the local material response to oscillatory shear. Besides classical…

软凝聚态物质 · 物理学 2016-05-13 Brice Saint-Michel , Thomas Gibaud , Mathieu Leocmach , Sébastien Manneville

We provide the first characterization of the nonlinear and time dependent rheologic response of viscoelastic bottom-up holographic models. More precisely, we perform oscillatory shear tests in holographic massive gravity theories with…

高能物理 - 理论 · 物理学 2020-02-28 Matteo Baggioli , Sebastian Grieninger , Hesam Soltanpanahi

Computational fluid dynamics (CFD) studies of left atrial flows have reached a sophisticated level, e.g., revealing plausible relationships between hemodynamics and stresses with atrial fibrillation. However, little focus has been on…

Photoacoustic tomography (PAT) is a promising imaging technique that can visualize the distribution of chromophores within biological tissue. However, the accuracy of PAT imaging is compromised by light fluence (LF), which hinders the…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Zhaoyong Liang , Shuangyang Zhang , Zhichao Liang , Zhongxin Mo , Xiaoming Zhang , Yutian Zhong , Wufan Chen , Li Qi

Large Language Models (LLMs) are increasingly used in Spoken Language Understanding (SLU), where effective multimodal learning depends on the alignment between audio and text. Despite various fusion methods, no standard metric exists to…

计算与语言 · 计算机科学 2025-07-08 Pooneh Mousavi , Yingzhi Wang , Mirco Ravanelli , Cem Subakan

State-of-the-art adaptive optics (AO) systems perform non-linear Fourier-type wavefront sensing for real-time corrections of dynamic wavefront aberrations. This general class of sensors uses a filtering mask in the focal plane that converts…

天体物理仪器与方法 · 物理学 2025-06-24 Victoria Laidlaw

We investigate theoretically shear banding in large amplitude oscillatory shear (LAOS) of polymers and wormlike micelles. In LAOStrain we find banding at low frequencies and sufficiently high strain rate amplitudes in fluids for which the…

软凝聚态物质 · 物理学 2016-11-03 Katherine A. Carter , John M. Girkin , Suzanne M. Fielding

Several Wide Field of view Adaptive Optics (WFAO) concepts like Multi-Conjugate AO (MCAO), Multi-Object AO (MOAO) or Ground-Layer AO (GLAO) are currently studied for the next generation of Extremely Large Telescopes (ELTs). All these…

天体物理学 · 物理学 2009-11-13 B. Neichel , T. Fusco , J. -M. Conan

In a recent work, Wyss, {\it et.al.} [Phys. Rev. Lett., {\bf 98}, 238303 (2007)] have noted a property of `soft solids' under oscillatory shear, the so-called strain-rate frequency superposition (SRFS). We extend this study to the case of…

软凝聚态物质 · 物理学 2015-05-14 Chirag Kalelkar , Ashish Lele , Samruddhi Kamble

Non-line-of-Sight (NLOS) imaging systems collect light at a diffuse relay surface and input this measurement into computational algorithms that output a 3D volumetric reconstruction. These algorithms utilize the Fast Fourier Transform (FFT)…

图像与视频处理 · 电气工程与系统科学 2025-01-14 Talha Sultan , Alex Bocchieri , Chaoying Gu , Xiaochun Liu , Pavel Polynkin , Andreas Velten

Soft particulate gels can reversibly yield when sufficient deformation is applied, and the characteristics of this transition can be enhanced or limited by designing hybrid hydrogel composites. While the microscopic dynamics and macroscopic…

软凝聚态物质 · 物理学 2022-11-09 Gavin J. Donley , Minaspi Bantawa , Emanuela Del Gado

We report direct measurements of spatially resolved surface stresses of a dense suspension during large amplitude oscillatory shear (LAOS) in the discontinuous shear thickening regime using boundary stress microscopy. Consistent with…

软凝聚态物质 · 物理学 2020-10-29 Vikram Rathee , Daniel L. Blair , Jeffrey S. Urbach

Foundation models have transformed language, vision, and time series data analysis, yet progress on dynamic predictions for physical systems remains limited. Given the complexity of physical constraints, two challenges stand out. $(i)$…

机器学习 · 计算机科学 2026-02-05 Haoran Li , Chenhan Xiao , Lihao Mai , Yang Weng , Erik Blasch
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