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In radio astronomy, radio frequency interference (RFI) becomes more and more serious for radio observational facilities. The RFI always influences the search and study of the interesting astronomical objects. Mitigating the RFI becomes an…

Instrumentation and Methods for Astrophysics · Physics 2021-12-03 Chuan-Peng Zhang , Jin-Long Xu , Jie Wang , Yingjie Jing , Ziming Liu , Ming Zhu , Peng Jiang

Epilepsy is one of the most common neurological disorders. This disease requires reliable and efficient seizure detection methods. Electroencephalography (EEG) is the gold standard for seizure monitoring, but its manual analysis is a…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Annika Stiehl , Nicolas Weeger , Christian Uhl , Dominic Bechtold , Nicole Ille , Stefan Geißelsöder

A brain wide association study (BWAS) based on the logistic regression was first developed and applied to a large population of epilepsy patients (168) and healthy controls (136). It was found that the most significant links associated with…

Medical Physics · Physics 2012-09-26 Wei Cheng , Xuejuan Zhang , Ge Tian , Jianfeng Feng , Zhengge Wang , Zhiqiang Zhang , GuangMing Lu

Diagnosing seizure onset zone (SOZ) is a challenge in neurosurgery, where stereoelectroencephalography (sEEG) serves as a critical technique. In sEEG SOZ identification, the existing studies focus solely on the intra-patient representation…

Machine Learning · Computer Science 2024-12-18 Huachao Yan , Kailing Guo , Shiwei Song , Yihai Dai , Xiaoqiang Wei , Xiaofen Xing , Xiangmin Xu

Radio frequency (RF) signals have been proved to be flexible for human silhouette segmentation (HSS) under complex environments. Existing studies are mainly based on a one-shot approach, which lacks a coherent projection ability from the RF…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Penghui Wen , Kun Hu , Dong Yuan , Zhiyuan Ning , Changyang Li , Zhiyong Wang

The brain is a high-dimensional directional network system consisting of many regions as network nodes that influence each other. The directional influence from one region to another is referred to as directional connectivity. Epilepsy is a…

Applications · Statistics 2022-08-18 Yaotian Wang , Guofen Yan , Seiji Tanabe , Chang-Chia Liu , Shayan Moosa , Mark S. Quigg , Tingting Zhang

Recently, recycled field-programmable gate arrays (FPGAs) pose a significant hardware security problem due to the proliferation of the semiconductor supply chain. Ring oscillator (RO) based frequency analyzing technique is one of the…

Hardware Architecture · Computer Science 2023-03-06 Tanvir Ahmad Tarique , Foisal Ahmed , Maksim Jenihhin , Liakot Ali

The Fast Folding Algorithm (FFA) is a phase-coherent search technique for periodic signals. It has rarely been used in radio pulsar searches, having been historically supplanted by the less computationally expensive Fast Fourier Transform…

Instrumentation and Methods for Astrophysics · Physics 2020-08-12 V. Morello , E. D. Barr , B. W. Stappers , E. F. Keane , A. G. Lyne

The emergence of far-field super-resolution microscopy has rejuvenated the possibility for nanoscale imaging. Approaches to far-field super-resolution that utilize point scanning often depends on spatially reducing the size of the focused…

Optics · Physics 2022-06-17 Ning Xu , Guoxuan Liu , Qiaofeng Tan

A forty-four pass fibre optic surface plasmon resonance sensor that enhances detection sensitivity according to the number of passes is demonstrated for the first time. The technique employs a fibre optic recirculation loop that passes the…

General Physics · Physics 2009-11-13 Chin B Su , Jun Kameoka

In this paper, we propose a novel approach for outlier detection, called local projections, which is based on concepts of Local Outlier Factor (LOF) (Breunig et al., 2000) and RobPCA (Hubert et al., 2005). By using aspects of both methods,…

We report the discovery of quasi-periodic oscillations (QPOs) at roughly 187 Hz and 150 Hz in the X-ray intensity of X-ray nova XTE J1859+226. The source was observed during a recent outburst with RXTE. Besides these high-frequency QPOs, we…

Astrophysics · Physics 2007-05-23 Wei Cui , C. R. Shrader , C. A. Haswell , R. I. Hynes

Discrete-time fractional-order dynamical systems (DT-FODS) have found innumerable applications in the context of modeling spatiotemporal behaviors associated with long-term memory. Applications include neurophysiological signals such as…

Optimization and Control · Mathematics 2021-10-05 Sarthak Chatterjee , Sérgio Pequito

Atrial fibrillation (AF) is the most prevalent arrhythmia and is associated with a five-fold increase in stroke risk. Many individuals with AF go undetected. These individuals are often asymptomatic. There are ongoing debates on whether…

Signal Processing · Electrical Eng. & Systems 2020-10-19 Armand Chocron , Roi Efraim , Franck Mandel , Michael Rueschman , Niclas Palmius , Thomas Penzel , Meyer Elbaz , Joachim A. Behar

Background: In electrical brain signals such as Local Field Potential (LFP) and Electroencephalogram (EEG), oscillations emerge as a result of neural network activity. The oscillations extend over several frequency bands. Between their…

Signal Processing · Electrical Eng. & Systems 2019-10-11 Mojtaba Chehelcheraghi , Chie Nakatani , Cees van Leeuwen

The hippocampus is a seminal structure in the most common surgically-treated form of epilepsy. Accurate segmentation of the hippocampus aids in establishing asymmetry regarding size and signal characteristics in order to disclose the likely…

Computer Vision and Pattern Recognition · Computer Science 2016-10-27 Mohammad-Parsa Hosseini , Mohammad-Reza Nazem-Zadeh , Dario Pompili , Kourosh Jafari-Khouzani , Kost Elisevich , Hamid Soltanian-Zadeh

Extracting and detecting spike activities from the fluorescence observations is an important step in understanding how neuron systems work. The main challenge lies in that the combination of the ambient noise with dynamic baseline…

Neurons and Cognition · Quantitative Biology 2019-02-01 Zhuangkun Wei , Bin Li , Weisi Guo , Wenxiu Hu , Chenglin Zhao

In genomic applications, there is often interest in identifying genes whose time-course expression trajectories exhibit periodic oscillations with a period of approximately 24 hours. Such genes are usually referred to as circadian, and…

Methodology · Statistics 2024-02-28 Silvia Montagna , Irina Irincheeva , Surya T. Tokdar

Cardiac pulsation is a physiological confound of functional magnetic resonance imaging (fMRI) time-series that introduces spurious signal fluctuations in proximity to blood vessels. fMRI alone is not sufficiently fast to resolve cardiac…

We provide a detailed description of the Herschel-SPIRE Fourier Transform Spectrometer (FTS) Spectral Feature Finder (FF). The FF is an automated process designed to extract significant spectral features from SPIRE FTS data products.…

Instrumentation and Methods for Astrophysics · Physics 2020-06-24 R. Hopwood , I. Valtchanov , Locke D. Spencer , J. P. Scott , C. S. Benson , N. Marchili , N. Hladczuk , E. T. Polehampton , N. Lu , G. Makiwa , D. A. Naylor , B. G. Gom , G. Noble , M. J. Griffin
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