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We demonstrate a multi-beam scanning transmission electron microscopy (STEM) imaging that integrates down-sampling with super-resolution image reconstruction via a compressive sensing framework. A custom condenser aperture with six randomly…

Instrumentation and Detectors · Physics 2026-03-19 Akira Yasuhara , Takumi Sannomiya , Ryoichi Horisaki

Near-field multi-antenna wireless communication has attracted growing research interest in recent years. Despite this development, most of the current literature on antennas and reflecting structures relies on simplified models, whose…

Signal Processing · Electrical Eng. & Systems 2026-02-12 Georg Schwan , Alexander Stutz-Tirri , Christoph Studer

Beamforming is central to the processing function of all phased arrays and becomes particularly challenging with a large number of antenna element (e.g. >100,000). The ability to beamform efficiently with reasonable power requirements is…

Instrumentation and Methods for Astrophysics · Physics 2010-08-25 A J Faulkner , K Zarb Adami , J. G. Bij de Vaate , G. W. Kant , P. Pickard

Objective: A novel structure based on channel-wise attention mechanism is presented in this paper. Embedding with the proposed structure, an efficient classification model that accepts multi-lead electrocardiogram (ECG) as input is…

Signal Processing · Electrical Eng. & Systems 2020-03-27 Hao Tung , Chao Zheng , Xinsheng Mao , Dahong Qian

Accurate modeling of the pi-bands of armchair graphene nanoribbons (AGNRs) requires correctly reproducing asymmetries in the bulk graphene bands as well as providing a realistic model for hydrogen passivation of the edge atoms. The commonly…

Mesoscale and Nanoscale Physics · Physics 2011-08-22 Timothy B. Boykin , Mathieu Luisier , Gerhard Klimeck , Xueping Jiang , Neerav Kharche , Yu Zhou , Saroj K. Nayak

Statistical significance testing of neural coherence is essential for distinguishing genuine cross-signal coupling from spurious correlations. A widely accepted approach uses surrogate-based inference, where null distributions are generated…

Signal Processing · Electrical Eng. & Systems 2026-05-13 Md Rakibul Mowla , Sukhbinder Kumar , Ariane E. Rhone , Brian J. Dlouhy , Christopher K. Kovach

We report on the commissioning of a fast electron-energy scan system for measurements of electron-impact ionization cross sections. The Giessen crossed-beams experiment employs a high-power electron gun which has been developed over recent…

Atomic Physics · Physics 2026-03-11 B. Michel Döhring , Alexander Borovik , Kurt Huber , Alfred Müller , Stefan Schippers

We performed model calculations of Raman responses for multiband 2D superconductors. The multiband effects of screening in the A_{1g} symmetry channel were investigated analytically and numerically for a band structure model mimicing ARPES…

Superconductivity · Physics 2015-05-19 Christoph Sauer , Girsh Blumberg

Deep learning has achieved expert-level performance in automated electrocardiogram (ECG) diagnosis, yet the "black-box" nature of these models hinders their clinical deployment. Trust in medical AI requires not just high accuracy but also…

Machine Learning · Computer Science 2026-02-11 Vajira Thambawita , Jonas L. Isaksen , Jørgen K. Kanters , Hugo L. Hammer , Pål Halvorsen

In pursuit of enhanced quality of service and higher transmission rates, communication within the mid-band spectrum, such as bands in the 6-15 GHz range, combined with extra large-scale multiple-input multiple-output (XL-MIMO), is…

Information Theory · Computer Science 2024-08-21 Jiachen Tian , Yu Han , Xiao Li , Shi Jin , Chao-Kai Wen

We investigate etched single-layer graphene nanoribbons with different widths ranging from 30 to 130 nm by confocal Raman spectroscopy. We show that the D-line intensity only depends on the edge-region of the nanoribbon and that…

Mesoscale and Nanoscale Physics · Physics 2011-05-06 Dominik Bischoff , Johannes Güttinger , Susanne Dröscher , Thomas Ihn , Klaus Ensslin , Christoph Stampfer

In this study, a novel transmission scheme is proposed to serve radar-sensing and communication objectives at the same time and allocated bandwidth. The proposed transmitted frame non-orthogonally superimposes two different waveforms, which…

Signal Processing · Electrical Eng. & Systems 2020-07-14 Mehmet Mert Sahin , Huseyin Arslan

While recent multimodal large language models (MLLMs) have advanced automated ECG interpretation, they still face two key limitations: (1) insufficient multimodal synergy between time series signals and visual ECG representations, and (2)…

Computation and Language · Computer Science 2025-10-21 Xiang Lan , Feng Wu , Kai He , Qinghao Zhao , Shenda Hong , Mengling Feng

Imaging of perfectly conducting crack(s) in a 2-D homogeneous medium using boundary data is studied. Based on the singular structure of the Multi-Static Response (MSR) matrix whose elements are normalized by an adequate test function at…

Mathematical Physics · Physics 2013-02-13 Won-Kwang Park , Dominique Lesselier

Automated classification of electrocardiogram (ECG) signals is a useful tool for diagnosing and monitoring cardiovascular diseases. This study compares three traditional machine learning algorithms (Decision Tree Classifier, Random Forest…

Machine Learning · Computer Science 2026-04-20 Saloni Garg , Ukant Jadia , Amit Sagtani , Kamal Kant Hiran

High-quality recordings of radio frequency (RF) emissions from commercial communication hardware in realistic environments are often needed to develop and assess spectrum-sharing technologies and practices, e.g., for training and testing…

Signal Processing · Electrical Eng. & Systems 2022-02-21 Jack Sklar , Adam Wunderlich

Intelligent reflecting surface (IRS) has emerged as a revolutionizing solution to enhance wireless communications by intelligently changing the propagation environment. Prior studies on IRS are based on an ideal reflection model with a…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Wenhao Cai , Hongyu Li , Ming Li , Qian Liu

This paper considers a multiuser massive multiple-input multiple-output uplink with the help of an analog amplify-and-forward relay. The base station equips a large array of $N_d$ antennas but is supported by a far smaller number of…

Information Theory · Computer Science 2020-06-01 Jindan Xu , Yucheng Wang , Wei Xu , Shi Jin , Hong Shen , Xiaohu You

This study presents a transformer-based deep learning framework for the long-horizon prediction of full lower-limb joint angles and joint moments using surface electromyography (sEMG) and inertial measurement unit (IMU) signals. Two…

Robotics · Computer Science 2025-06-06 Farshad Haghgoo Daryakenari , Tara Farizeh

In this paper, we propose a practical receiver for multicarrier signals subjected to a strong memoryless nonlinearity. The receiver design is based on a generalized approximate message passing (GAMP) framework, and this allows real-time…

Information Theory · Computer Science 2017-03-07 Sergey V. Zhidkov