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Ultrasound is a continually developing technology that is broadly used for fast, non-destructive mechanical property detection of hard and soft materials in applications ranging from manufacturing to biomedical. In this study, a novel…

医学物理 · 物理学 2019-10-17 Yuqi Jin , Ezekiel Walker , Arkadii Krokhin , Hyeonu Heo , Tae-Youl Choi , Arup Neogi

Early and accurately detecting faults in rotating machinery is crucial for operation safety of the modern manufacturing system. In this paper, we proposed a novel Deep fault diagnosis (DFD) method for rotating machinery with scarce labeled…

信号处理 · 电气工程与系统科学 2019-07-23 Jing Zhang , Jing Tian , Tao Wen , Xiaohui Yang , Yong Rao , Xiaobin Xu

In this paper a denoising strategy based on the EEMD (Ensemble Empirical Mode Decomposition) is used to reduce the background noise in non-stationary signals, which represent the forces measured in scaled model testing of the emergency…

信号处理 · 电气工程与系统科学 2022-01-06 Emanuele Spinosa , Alessandro Iafrati

Over several decades, electromechanical impedance (EMI) measurements have been employed as a basis for structural health monitoring and damage detection. Traditionally, Root-mean-squared-deviation (RMSD) and Cross-correlation (XCORR) based…

应用统计 · 统计学 2026-04-30 Sourabh Sangle , Sa'ed Alajlouni , Pablo A. Tarazaga

Weakly supervised violence detection refers to the technique of training models to identify violent segments in videos using only video-level labels. Among these approaches, multimodal violence detection, which integrates modalities such as…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Wenping Jin , Li Zhu , Jing Sun

The detection and characterization of partial discharge (PD) are crucial for the insulation diagnosis of overhead lines with covered conductors. With the release of a large dataset containing thousands of naturally obtained high-frequency…

信号处理 · 电气工程与系统科学 2020-11-05 Kunjin Chen , Tomáš Vantuch , Yu Zhang , Jun Hu , Jinliang He

Vertebral compression fractures (VCFs) are a common and potentially serious consequence of osteoporosis. Yet, they often remain undiagnosed. Opportunistic screening, which involves automated analysis of medical imaging data acquired…

The detection reliability of weak signals is a critical issue in many astronomical contexts and may have severe consequences for determining number counts and luminosity functions, but also for optimising the use of telescope time in…

天体物理仪器与方法 · 物理学 2016-04-06 Roberto Vio , Paola Andreani

The design and fabrication of a cost-effective vibrating sample magnetometer are explained. Improvement in the detected signal can be obtained using an operational amplifier circuit. The fabricated spiral detection coil design enhances the…

材料科学 · 物理学 2021-02-03 Aditya Dash , Rabindra Sarkar , Abel Mathew , Prakash Nath Vishwakarma

We present a new approach based on the static density functional theory (DFT) to describe paramagentic MnO, which is a representative paramagnetic Mott insulator. We appended the spin noncollinearity and the canonical ensemble to the…

强关联电子 · 物理学 2020-07-14 Sangmoon Yoon , Seoung-Hun Kang , Sangmin Lee , Kuntae Kim , Jeong-Pil Song , Miyoung Kim , Young-Kyun Kwon

In this paper, we investigate how the spectrogram of multicomponent signals can be decomposed into a mode part and an interference part. We explore two approaches: (i) a variational method inspired by texture-geometry decomposition in image…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Kévin Polisano , Sylvain Meignen , Nils Laurent , Hubert Leterme

Bolt joints are very common and important in engineering structures. Due to extreme service environment and load factors, bolts often get loose or even disengaged. To real-time or timely detect the loosed or disengaged bolts is an urgent…

计算机视觉与模式识别 · 计算机科学 2022-05-26 Yadian Zhao , Zhenglin Yang , Chao Xu

The interaction of multiple fluids through a heterogeneous pore space leads to complex pore-scale flow dynamics, such as intermittent pathway flow. The non-local nature of these dynamics, and the size of the 4D datasets acquired to capture…

地球物理 · 物理学 2024-09-24 Aman Raizada , Steffen Berg , Sally M. Benson , Hamdi A. Tchelepi , Catherine Spurin

We consider a set of M images, whose pixel intensities at a common point can be treated as the components of a M-dimensional vector. We are interested in the estimation of the modulus of such a vector associated to a compact source. For…

宇宙学与河外天体物理 · 物理学 2011-01-05 F. Argueso , J. L. Sanz , D. Herranz

Dynamic mode decomposition (DMD) is a powerful and increasingly popular tool for performing spectral analysis of fluid flows. However, it requires data that satisfy the Nyquist-Shannon sampling criterion. In many fluid flow experiments,…

流体动力学 · 物理学 2014-09-17 Jonathan H. Tu , Clarence W. Rowley , J. Nathan Kutz , Jessica K. Shang

Wide-area synchrophasor ambient measurements provide a valuable data source for real-time oscillation mode monitoring and analysis. This paper introduces a novel method for identifying inter-area oscillation modes using wide-area ambient…

信号处理 · 电气工程与系统科学 2021-03-03 Shutang You

Accurate predictions of the failure progression of structural materials is critical for preventing failure-induced accidents. Despite considerable mechanics modeling-based efforts, accurate prediction remains a challenging task in…

材料科学 · 物理学 2022-05-19 Leslie Ching Ow Tiong , Gunjick Lee , Seok Su Sohn , Donghun Kim

Reconstruction method based on the memory module for visual anomaly detection attempts to narrow the reconstruction error for normal samples while enlarging it for anomalous samples. Unfortunately, the existing memory module is not fully…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Peng Xing , Zechao Li

The Ensemble Empirical Mode Decomposition (EEMD) has become a preferred technique to decompose nonlinear and non-stationary signals due to its ability to create time-varying basis functions. However, current EEMD signal cleaning techniques…

信号处理 · 电气工程与系统科学 2022-08-29 Kentaro Hoffman , Jonathan M. Lees , Kai Zhang

In inclusion detection in electrical impedance tomography, the support of perturbations (inclusion) from a known background conductivity is typically reconstructed from idealized continuum data modelled by a Neumann-to-Dirichlet map. Only…

偏微分方程分析 · 数学 2018-12-20 Henrik Garde , Stratos Staboulis