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1,117 Results Found

  • Article
  • Open Access
12 Citations
3,536 Views
19 Pages

24 April 2020

This research focuses on restoring signals caused by power failures in transmission lines using the basis pursuit, matching pursuit, and orthogonal matching pursuit sensing techniques. The original signal corresponds to the instantaneous current and...

  • Article
  • Open Access
8 Citations
11,219 Views
13 Pages

11 November 2021

The renin-angiotensin system (RAS) is a paracrine RAS within the central nervous system (CNS) and is closely related to Alzheimer’s disease (AD). The endogenous hexapeptide angiotensin IV (Ang IV), an important component of the brain RAS, was found t...

  • Article
  • Open Access
1,818 Views
15 Pages

Radiofrequency Enhancer to Recover Signal Dropouts in 7 Tesla Diffusion MRI

  • Varun Subramaniam,
  • Andrew Frankini,
  • Ameen Al Qadi,
  • Mackenzie T. Herb,
  • Gaurav Verma,
  • Bradley N. Delman,
  • Priti Balchandani and
  • Akbar Alipour

30 October 2024

Diffusion magnetic resonance imaging (dMRI) allows for a non-invasive visualization and quantitative assessment of white matter architecture in the brain by characterizing restrictions on the random motion of water molecules. Ultra-high field MRI sca...

  • Article
  • Open Access
4 Citations
6,893 Views
12 Pages

17 December 2013

This paper designs and evaluates a variant of CoSaMP algorithm, for recovering the sparse signal s from the compressive measurement v = A(Uw+s) given a fixed low-rank subspace spanned by U. Instead of firstly recovering the full vector then separ...

  • Article
  • Open Access
8 Citations
3,024 Views
14 Pages

3 December 2018

This paper presents a method for speech steganography using two levels of security: The first one related to the scrambling process, the second one related to the hiding process. The scrambling block uses a technique based on the ability of adaptatio...

  • Article
  • Open Access
22 Citations
5,221 Views
22 Pages

Watermarking Based on Compressive Sensing for Digital Speech Detection and Recovery

  • Wenhuan Lu,
  • Zonglei Chen,
  • Ling Li,
  • Xiaochun Cao,
  • Jianguo Wei,
  • Naixue Xiong,
  • Jian Li and
  • Jianwu Dang

23 July 2018

In this paper, a novel imperceptible, fragile and blind watermark scheme is proposed for speech tampering detection and self-recovery. The embedded watermark data for content recovery is calculated from the original discrete cosine transform (DCT) co...

  • Article
  • Open Access
3 Citations
2,724 Views
13 Pages

This paper demonstrates body-coupled (BC) data transmission and multi-source power delivery systems for neural interface applications. The implanted data transmitter and power receiver utilize an electrode interface rather than an antenna or coil int...

  • Article
  • Open Access
3 Citations
1,909 Views
17 Pages

24 April 2024

We propose the Rescaled Matching Pursuit (RMP) algorithm to recover sparse signals in high-dimensional Euclidean spaces. The RMP algorithm has less computational complexity than other greedy-type algorithms, such as Orthogonal Matching Pursuit (OMP)....

  • Article
  • Open Access
7 Citations
3,694 Views
16 Pages

State-of-the-Art Capability of Convolutional Neural Networks to Distinguish the Signal in the Ionosphere

  • Yu-Chi Chang,
  • Chia-Hsien Lin,
  • Alexei V. Dmitriev,
  • Mon-Chai Hsieh,
  • Hao-Wei Hsu,
  • Yu-Ciang Lin,
  • Merlin M. Mendoza,
  • Guan-Han Huang,
  • Lung-Chih Tsai and
  • Yung-Hui Li
  • + 1 author

2 April 2022

Recovering and distinguishing different ionospheric layers and signals usually requires slow and complicated procedures. In this work, we construct and train five convolutional neural network (CNN) models: DeepLab, fully convolutional DenseNet24 (FC-...

  • Article
  • Open Access
3 Citations
5,791 Views
19 Pages

Directly Estimating Endmembers for Compressive Hyperspectral Images

  • Hongwei Xu,
  • Ning Fu,
  • Liyan Qiao and
  • Xiyuan Peng

21 April 2015

The large volume of hyperspectral images (HSI) generated creates huge challenges for transmission and storage, making data compression more and more important. Compressive Sensing (CS) is an effective data compression technology that shows that when...

  • Article
  • Open Access
3 Citations
3,217 Views
13 Pages

Composite Sinusoidal Waveform Generated by Direct Digital Synthesis for Healthy Charging of Lithium-Ion Batteries

  • Po-Tuan Chen,
  • Fu-Yen Zeng,
  • Xuan-Hao Zhang,
  • Ren-Jei Chung,
  • Cheng-Jung Yang and
  • K. David Huang

13 February 2020

To address the defects in lithium-ion battery lifespan, this paper proposes a composite waveform generation strategy that offers capacity-recovering effect. Based on digital architecture, this study exploits direct digital synthesis (DDS) to generate...

  • Article
  • Open Access
5 Citations
6,003 Views
13 Pages

26 March 2016

In a passive ultra-high frequency (UHF) radio-frequency identification (RFID) system, tag collision is generally resolved on a medium access control (MAC) layer. However, some of collided tag signals could be recovered on a physical (PHY) layer and,...

  • Article
  • Open Access
1,396 Views
17 Pages

Metabolic Signalling Peptides and Their Relation to Clinical and Demographic Characteristics in Acute and Recovered Females with Anorexia Nervosa

  • Hiba Mutwalli,
  • Johanna L. Keeler,
  • Raymond Chung,
  • Bethan Dalton,
  • Olivia Patsalos,
  • John Hodsoll,
  • Ulrike Schmidt,
  • Gerome Breen,
  • Janet Treasure and
  • Hubertus Himmerich

14 April 2025

Background/Objectives: Recent research has established that metabolic factors may increase the vulnerability to develop anorexia nervosa (AN). The aim of this study was to explore the serum concentrations of leptin, insulin-like growth factor-1 (IGF-...

  • Article
  • Open Access
4 Citations
11,328 Views
17 Pages

Assessing Metagenomic Signals Recovered from Lyuba, a 42,000-Year-Old Permafrost-Preserved Woolly Mammoth Calf

  • Giada Ferrari,
  • Heidi E. L. Lischer,
  • Judith Neukamm,
  • Enrique Rayo,
  • Nicole Borel,
  • Andreas Pospischil,
  • Frank Rühli,
  • Abigail S. Bouwman and
  • Michael G. Campana

31 August 2018

The reconstruction of ancient metagenomes from archaeological material, and their implication in human health and evolution, is one of the most recent advances in paleomicrobiological studies. However, as for all ancient DNA (aDNA) studies, environme...

  • Article
  • Open Access
15 Citations
3,575 Views
20 Pages

22 March 2019

To identify the major vibration and radiation noise, a source contribution quantitative estimation method is proposed based on underdetermined blind source separation. First, the single source points (SSPs) are identified by directly searching the id...

  • Article
  • Open Access
581 Views
23 Pages

Strategies for Suppression and Compensation of Signal Loss in Ptychography

  • Ruoru Li,
  • Zijian Xu,
  • Sheng Chen,
  • Shuhan Wu,
  • Yingling Zhang,
  • Xiangzhi Zhang and
  • Renzhong Tai

X-ray ptychography is an ultrahigh resolution imaging technique widely used in synchrotron radiation facilities. Its imaging performance relies on the quality of the acquired signals. However, the X-ray detectors used often suffer from signal loss du...

  • Article
  • Open Access
2 Citations
7,414 Views
15 Pages

31 July 2021

A 3.0 Gsymbol/s/lane receiver is proposed herein to acquire near-grounded high-speed signals for the mobile industry processor interface (MIPI) C-PHY version 1.1 specification used for CMOS image sensor interfaces. Adaptive level-dependent equalizati...

  • Article
  • Open Access
7 Citations
2,782 Views
17 Pages

Comparison of Mathematical Methods for Compensating a Current Signal under Current Transformers Saturation Conditions

  • Ismoil Odinaev,
  • Aminjon Gulakhmadov,
  • Pavel Murzin,
  • Alexander Tavlintsev,
  • Sergey Semenenko,
  • Evgenii Kokorin,
  • Murodbek Safaraliev and
  • Xi Chen

1 November 2021

Current measurements from electromagnetic current transformers are essential for the construction of secondary circuit systems, including for protection systems. Magnetic core of these transformers are at risk of saturation, as a result of which malo...

  • Article
  • Open Access
1 Citations
2,405 Views
13 Pages

17 August 2020

By means of compressive sampling (CS), a sparse signal can be efficiently recovered from its far fewer samples than that required by the Nyquist–Shannon sampling theorem. However, recovering a speech signal from its CS samples is a challenging...

  • Article
  • Open Access
12 Citations
6,413 Views
13 Pages

8 December 2018

The photoacoustic (PA) signal amplitude measured in gold nanosphere suspensions has been shown to increase nonlinearly with the incident excitation fluence. In this work, this effect is exploited to recover the spatial distribution of gold nanopartic...

  • Article
  • Open Access
7 Citations
7,863 Views
18 Pages

7 January 2011

Inefficient utilization of the frequency spectrum due to conventional regulatory limitations and physical performance limiting factors, mainly the Signal to Noise Ratio (SNR), are prominent restrictions in digital wireless communication. Pattern Base...

  • Article
  • Open Access
4 Citations
2,950 Views
19 Pages

RhoG-Binding Domain of Elmo1 Ameliorates Excessive Process Elongation Induced by Autism Spectrum Disorder-Associated Sema5A

  • Miyu Okabe,
  • Yuki Miyamoto,
  • Yuta Ikoma,
  • Mikito Takahashi,
  • Remina Shirai,
  • Mutsuko Kukimoto-Niino,
  • Mikako Shirouzu and
  • Junji Yamauchi

Autism spectrum disorder (ASD) is a neurodevelopmental disorder that includes autism, Asperger’s syndrome, and pervasive developmental disorder. ASD is characterized by poor interpersonal relationships and strong attachment. The correlations be...

  • Article
  • Open Access
1 Citations
1,432 Views
18 Pages

GenTrajRec: A Graph-Enhanced Trajectory Recovery Model Based on Signaling Data

  • Hongyao Huang,
  • Haozhi Xie,
  • Zihang Xu,
  • Mingzhe Liu,
  • Yi Xu and
  • Tongyu Zhu

8 July 2024

Signaling data are records of the interactions of users’ mobile phones with their nearest cellular stations, which could provide long-term and continuous-time location data of large-scale citizens, and therefore have great potential in intellig...

  • Article
  • Open Access
4 Citations
2,252 Views
16 Pages

18 August 2022

To measure the vibration of a target by laser self-mixing interference (SMI), we propose a method that combines feature extraction and random forest (RF) without determining the feedback strength (C). First, the temporal, spectral, and statistical fe...

  • Article
  • Open Access
7 Citations
3,117 Views
18 Pages

13 October 2018

In this paper, we propose a boosting synthetic aperture radar (SAR) image despeckling method based on non-local weighted group low-rank representation (WGLRR). The spatial structure information of SAR images leads to the similarity of the patches. Fu...

  • Article
  • Open Access
3 Citations
1,573 Views
12 Pages

25 July 2023

This paper presents a novel method based on a convolutional neural network to recover thermal time constants from a temperature–time curve after thermal excitation. The thermal time constants are then used to detect the pathological states of t...

  • Article
  • Open Access
6 Citations
3,361 Views
17 Pages

7 August 2022

With the development of 5G and network technology, the usage of IoT devices has become popular. Because most of these IoT devices can be controlled by an adversary away from the administrator, several security issues such as firmware dumping can aris...

  • Article
  • Open Access
34 Citations
5,105 Views
20 Pages

Deep Learning-Based Signal Detection for Underwater Acoustic OTFS Communication

  • Yuzhi Zhang,
  • Shumin Zhang,
  • Bin Wang,
  • Yang Liu,
  • Weigang Bai and
  • Xiaohong Shen

6 December 2022

Orthogonal time frequency space (OTFS) is a novel two-dimensional (2D) modulation technique that provides reliable communications over time- and frequency-selective channels. In underwater acoustic (UWA) channel, the multi-path delay and Doppler shif...

  • Article
  • Open Access
7 Citations
2,828 Views
9 Pages

Absolute Distance Measurement Based on Self-Mixing Interferometry Using Compressed Sensing

  • Li Li,
  • Yue Zhang,
  • Ye Zhu,
  • Ya Dai,
  • Xuan Zhang and
  • Xuwen Liang

29 August 2022

An absolute distance measurement sensor based on self-mixing interferometry (SMI) is suitable for application in aerospace due to its small size and light weight. However, an SMI signal with a high sampling rate places a burden on sampling devices an...

  • Letter
  • Open Access
1 Citations
2,333 Views
13 Pages

High Sensitivity Snapshot Spectrometer Based on Deep Network Unmixing

  • Hui Xie,
  • Zhuang Zhao,
  • Jing Han,
  • Lianfa Bai and
  • Yi Zhang

9 December 2020

Spectral detection provides rich spectral–temporal information with wide applications. In our previous work, we proposed a dual-path sub-Hadamard-s snapshot Hadamard transform spectrometer (Sub-s HTS). In order to reduce the complexity of the s...

  • Article
  • Open Access
13 Citations
5,551 Views
17 Pages

Adaptive Compressive Sensing and Data Recovery for Periodical Monitoring Wireless Sensor Networks

  • Jian Chen,
  • Jie Jia,
  • Yansha Deng,
  • Xingwei Wang and
  • Abdol-Hamid Aghvami

9 October 2018

The development of compressive sensing (CS) technology has inspired data gathering in wireless sensor networks to move from traditional raw data gathering towards compression based gathering using data correlations. While extensive efforts have been...

  • Article
  • Open Access
13 Citations
4,998 Views
18 Pages

Synchronization of Monostatic Radar Using a Time-Delayed Chaos-Based FM Waveform

  • Mariam H. Abd,
  • Ghaida A. Al-Suhail,
  • Fadhil R. Tahir,
  • Ahmed M. Ali Ali,
  • Hamza A. Abbood,
  • Kia Dashtipour,
  • Sajjad Shaukat Jamal and
  • Jawad Ahmad

20 April 2022

There is no doubt that chaotic systems are still attractive issues in various radar applications and communication systems. In this paper, we present a new 0.3 GHz mono-static microwave chaotic radar. It includes a chaotic system based on a time-dela...

  • Article
  • Open Access
4 Citations
2,397 Views
16 Pages

Evaluation of the Fast Synchrophasors Estimation Algorithm Based on Physical Signals

  • Mihail Senyuk,
  • Khairan Rajab,
  • Murodbek Safaraliev and
  • Firuz Kamalov

4 January 2023

The goal of this study is to evaluate the performance of the fast algorithm for synchrophasor estimation proposed on the basis of a physical system. The test system is represented by a physical model of a power system with four synchronous generators...

  • Article
  • Open Access
49 Citations
6,447 Views
18 Pages

Deep Task-Based Quantization

  • Nir Shlezinger and
  • Yonina C. Eldar

13 January 2021

Quantizers play a critical role in digital signal processing systems. Recent works have shown that the performance of acquiring multiple analog signals using scalar analog-to-digital converters (ADCs) can be significantly improved by processing the s...

  • Article
  • Open Access
2 Citations
2,029 Views
19 Pages

Structural-Missing Tensor Completion for Robust DOA Estimation with Sensor Failure

  • Bin Li,
  • Fei Cheng,
  • Hang Zheng,
  • Zhiguo Shi and
  • Chengwei Zhou

28 November 2023

Array sensor failure poses a serious challenge to robust direction-of-arrival (DOA) estimation in complicated environments. Although existing matrix completion methods can successfully recover the damaged signals of an impaired sensor array, they can...

  • Article
  • Open Access
4 Citations
2,040 Views
29 Pages

Investigating the Protective Effects of a Citrus Flavonoid on the Retardation Morphogenesis of the Oligodendroglia-like Cell Line by Rnd2 Knockdown

  • Shoya Fukatsu,
  • Yuki Miyamoto,
  • Yu Oka,
  • Maki Ishibashi,
  • Remina Shirai,
  • Yuki Ishida,
  • Shin Endo,
  • Hironori Katoh and
  • Junji Yamauchi

26 December 2023

Recent discoveries suggest links between abnormalities in cell morphogenesis in the brain and the functional deficiency of molecules controlling signal transduction in glial cells such as oligodendroglia. Rnd2 is one such molecule and one of the Rho...

  • Article
  • Open Access
5 Citations
2,628 Views
10 Pages

A Non-Local Tensor Completion Algorithm Based on Weighted Tensor Nuclear Norm

  • Wenzhe Wang,
  • Jingjing Zheng,
  • Li Zhao,
  • Huiling Chen and
  • Xiaoqin Zhang

9 October 2022

In this paper, we proposed an image inpainting algorithm, including an interpolation step and a non-local tensor completion step based on a weighted tensor nuclear norm. Specifically, the proposed algorithm adopts the triangular based linear interpol...

  • Article
  • Open Access
6 Citations
2,104 Views
17 Pages

7 September 2022

With the advancement of an intellectual and numerical society, the coal mining industry has also begun to change to intelligence. As an important aspect of intelligent coal mine construction, coal mine communication has put forward more stringent sta...

  • Proceeding Paper
  • Open Access
2 Citations
1,334 Views
4 Pages

Enhancing Phase Measurement by a Factor of Two in the Stokes Correlation

  • Amit Yadav,
  • Tushar Sarkar,
  • Takamasa Suzuki and
  • Rakesh Kumar Singh

Phase loss is a typical problem in the optical domain, and optical detectors only measure the amplitude distribution of a signal without its phase. However, an optimal phase is desired in a variety of practical applications, such as optical metrology...

  • Article
  • Open Access
26 Citations
7,666 Views
16 Pages

Linguistic Laws in Speech: The Case of Catalan and Spanish

  • Antoni Hernández-Fernández,
  • Iván G. Torre,
  • Juan-María Garrido and
  • Lucas Lacasa

26 November 2019

In this work we consider Glissando Corpus—an oral corpus of Catalan and Spanish—and empirically analyze the presence of the four classical linguistic laws (Zipf’s law, Herdan’s law, Brevity law, and Menzerath–Altmann’s law) in oral communication, and...

  • Article
  • Open Access
9 Citations
3,395 Views
18 Pages

15 June 2020

In order to enhance weak signals in strong noise background, a weak signal enhancement method based on EMDNN (neural network-assisted empirical mode decomposition) is proposed. This method combines CEEMD (complementary ensemble empirical mode decompo...

  • Proceeding Paper
  • Open Access
1 Citations
1,747 Views
8 Pages

Bayesian Statistics Approach to Imaging of Aperture Synthesis Data: RESOLVE Meets ALMA

  • Łukasz Tychoniec,
  • Fabrizia Guglielmetti,
  • Philipp Arras,
  • Torsten Enßlin and
  • Eric Villard

The Atacama Large Millimeter/submillimeter Array (ALMA) is currently revolutionizing observational astrophysics. The aperture synthesis technique provides angular resolution otherwise unachievable with the conventional single-aperture telescope. Howe...

  • Article
  • Open Access
3 Citations
2,424 Views
11 Pages

The scattering of light after passing through a complex medium poses challenges in many fields. Any point in the collected speckle will contain information from the entire target plane because of the randomness of scattering. The detailed information...

  • Article
  • Open Access
8 Citations
3,510 Views
16 Pages

Monitoring Respiratory Motion during VMAT Treatment Delivery Using Ultra-Wideband Radar

  • Anwar Fallatah,
  • Miodrag Bolic,
  • Miller MacPherson and
  • Daniel J. La Russa

16 March 2022

The goal of this paper is to evaluate the potential of a low-cost, ultra-wideband radar system for detecting and monitoring respiratory motion during radiation therapy treatment delivery. Radar signals from breathing motion patterns simulated using a...

  • Article
  • Open Access
6 Citations
4,285 Views
20 Pages

A Novel, LAT/Lck Double Deficient T Cell Subline J.CaM1.7 for Combined Analysis of Early TCR Signaling

  • Inmaculada Vico-Barranco,
  • Mikel M. Arbulo-Echevarria,
  • Isabel Serrano-García,
  • Alba Pérez-Linaza,
  • José M. Miranda-Sayago,
  • Arkadiusz Miazek,
  • Isaac Narbona-Sánchez and
  • Enrique Aguado

6 February 2021

Intracellular signaling through the T cell receptor (TCR) is essential for T cell development and function. Proper TCR signaling requires the sequential activities of Lck and ZAP-70 kinases, which result in the phosphorylation of tyrosine residues lo...

  • Article
  • Open Access
10 Citations
1,463 Views
10 Pages

1 August 2010

Adaptive control technique is used to design suitable controllers to synchronize two different coupled chaotic systems with uncertainties. The information signal hidden in chaotic signal is transmitted and then successfully recovered at the receiver...

  • Article
  • Open Access
15 Citations
3,562 Views
25 Pages

COVID-19 Long-Term Effects: Is There an Impact on the Simple Reaction Time and Alternative-Forced Choice on Recovered Patients?

  • Mauro Santoyo-Mora,
  • Carlos Villaseñor-Mora,
  • Luz M. Cardona-Torres,
  • Juan J. Martínez-Nolasco,
  • Alejandro I. Barranco-Gutiérrez,
  • José A. Padilla-Medina and
  • Micael Gerardo Bravo-Sánchez

16 September 2022

A comparative single-evaluation cross-sectional study was performed to evaluate cognitive damage in post-COVID-19 patients. The psychophysics tests of Two-Alternative Forced Choice (2AFC) and Simple Reaction Time (SRT), under a designed virtual envir...

  • Article
  • Open Access
17 Citations
5,476 Views
17 Pages

23 June 2018

Wearable telemonitoring of electrocardiogram (ECG) based on wireless body Area networks (WBAN) is a promising approach in next-generation patient-centric telecardiology solutions. In order to guarantee long-term effective operation of monitoring syst...

  • Article
  • Open Access
1 Citations
2,555 Views
17 Pages

Although the development of watermarking techniques has enabled designers to tackle normal processing attacks (e.g., amplitude scaling, noise addition, re-compression), robustness against malicious attacks remains a challenge. The discordant size con...

  • Article
  • Open Access
11 Citations
6,189 Views
16 Pages

29 July 2014

In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery. It was shown in theory that weak impulsive signals follow the mechanism of SR, but t...

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