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We present a machine learning method for swiftly identifying nanobubbles in graphene, crucial for understanding electronic transport in graphene-based devices. Nanobubbles cause local strain, impacting graphene's transport properties.…

介观与纳米尺度物理 · 物理学 2024-09-24 Subin Kim , Nojoon Myoung , Seunghyun Jun , Ara Go

This study investigates different Scientific Machine Learning (SciML) approaches for the analysis of functionally graded (FG) porous beams and compares them under a new framework. The beam material properties are assumed to vary as an…

The reliability of any day-to-day material is critically dictated by its properties. One factor which governs the behaviour of a material, under a given condition, is the microstructure. Despite the absence of any phase transformation, a…

材料科学 · 物理学 2019-06-26 P G Kubendran Amos

Zagarola and Smits developed an empirical velocity parameter for scaling the outer region of the turbulent boundary layer velocity profile that has been widely applied to experimental datasets. Plots of the scaled defect profiles indicate…

流体动力学 · 物理学 2017-05-23 David Weyburne

This article is a continuation of our previous studies of the frictional anisotropy of metal nanoparticles on the surface of a graphene substrate for other temperature conditions. The friction force acting on palladium nanoparticles on a…

介观与纳米尺度物理 · 物理学 2021-03-30 A. V. Khomenko , M. V. Zakharov

The motion of atoms is at the heart of any chemical or structural transformation in molecules and materials. Upon activation of this motion by an external source, several (usually many) vibrational modes can be coherently coupled, thus…

Colloidal probe Atomic Force Microscopy (AFM) allows to explore sliding friction phenomena in graphite contacts of nominal lateral size up to hundreds of nanometers. It is known that contact formation involves tribo-induced material…

介观与纳米尺度物理 · 物理学 2024-01-12 Renato Buzio , Andrea Gerbi , Cristina Bernini , Luca Repetto , Andrea Vanossi

Strain gradient theory is an accurate model for capturing the size effect and localization phenomena. However, the challenge in identification of corresponding constitutive parameters limits the practical application of the theory. We…

计算工程、金融与科学 · 计算机科学 2021-12-30 Hua Yang , Bilen Emek Abali , Wolfgang H. Müller , Salma Barboura , Jia Li

Cross-modal metric learning is a prominent research topic that bridges the semantic heterogeneity between vision and language. Existing methods frequently utilize simple cosine or complex distance metrics to transform the pairwise features…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Haiwen Diao , Ying Zhang , Shang Gao , Jiawen Zhu , Long Chen , Huchuan Lu

We used nonequilibrium molecular dynamics simulations to study the shear deformation of metallic composites composed of alternating layers of Cu and Au. Our simulations reveal the formation of "vortices" or "swirls" if the bimaterial…

材料科学 · 物理学 2020-01-15 Adrien Gola , Ruth Schwaiger , Peter Gumbsch , Lars Pastewka

Pattern formation is a widely observed phenomenon in diverse fields including materials physics, developmental biology and ecology, among many others. The physics underlying the patterns is specific to the mechanisms, and is encoded by…

计算工程、金融与科学 · 计算机科学 2024-03-28 Z. Wang , X. Huan , K. Garikipati

Due to the increase in computational resources and accessibility of data, an increase in large, deep learning models trained on copious amounts of multi-modal data using self-supervised or semi-supervised learning have emerged. These…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Madeline Chantry Schiappa , Shehreen Azad , Sachidanand VS , Yunhao Ge , Ondrej Miksik , Yogesh S. Rawat , Vibhav Vineet

The simultaneous combination of scanning probe methods (tunnelling and force microscopies, STM and AFM) is a unique way to get an information about crystallographic and electronic structure of the studied surface. Here we apply these…

Nanoscale manufacturing requires high-precision surface inspection to guarantee the quality of the produced nanostructures. For production environments, angle-resolved scatterometry offers a non- invasive and in-line compatible alternative…

信号处理 · 电气工程与系统科学 2025-08-26 Mehdi Abdollahpour , Carsten Bockelmann , Tajim Md Hasibur Rahman , Armin Dekorsy , Andreas Fischer

Global stability analysis and direct numerical simulation (DNS) are performed to study boundary layer flows with an isolated roughness element. Wall-attached cuboids with aspect ratios $\eta=1$ and $\eta=0.5$ are investigated for fixed…

流体动力学 · 物理学 2022-10-05 Rong Ma , Krishnan Mahesh

The robustness of object detection models is a major concern when applied to real-world scenarios. The performance of most models tends to degrade when confronted with images affected by corruptions, since they are usually trained and…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Haodong He , Jian Ding , Bowen Xu , Gui-Song Xia

Linear sp carbon nanostructures are gathering interest for the physical properties of one-dimensional (1D) systems. At present, the main obstacle to the synthesis and study of these systems is their instability. Here we present a simple…

A multifractal analysis (MFA) is performed on three-dimensional grayscale images associated with natural porous structures (soil samples). First, computed tomography (CT) scans are carried out on the samples to generate 3D grayscale images.…

数据分析、统计与概率 · 物理学 2016-05-22 Lorenzo Milazzo , Radoslaw Pajor

We report a multiscale modeling study for charged cylindrical nanopores using three modeling levels that include (1) an all-atom explicit-water model studied with molecular dynamics (MD), and reduced models with implicit water containing…

The degree of fractal substructure in molecular clouds can be quantified by comparing them with Fractional Brownian Motion (FBM) surfaces or volumes. These fields are self-similar over all length scales and characterised by a drift exponent…

星系天体物理 · 物理学 2019-05-20 O. Lomax , M. L. Bates , A. P. Whitworth