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In this paper, we report the development of an intensity modulated fiber optic sensor for angular displacement measurement. This sensor was designed to present high sensitivity, linear response, wide bandwidth and, furthermore, to be simple…

Instrumentation and Detectors · Physics 2017-06-27 João M. S. Sakamoto , Cláudio Kitano , Gefeson M. Pacheco , Bernhard R. Tittmann

Employing large intelligent surfaces (LISs) is a promising solution for improving the coverage and rate of future wireless systems. These surfaces comprise a massive number of nearly-passive elements that interact with the incident signals,…

Information Theory · Computer Science 2019-05-01 Abdelrahman Taha , Muhammad Alrabeiah , Ahmed Alkhateeb

Knowledge of mechanical and physical property evolution due to irradiation damage is essential for the development of future fission and fusion reactors. Ion-irradiation provides an excellent proxy for studying irradiation damage, allowing…

Diagnostic imaging plays a critical role in healthcare, serving as a fundamental asset for timely diagnosis, disease staging and management as well as for treatment choice, planning, guidance, and follow-up. Among the diagnostic imaging…

Signal Processing · Electrical Eng. & Systems 2021-09-24 Ruud JG van Sloun , Jong Chul Ye , Yonina C Eldar

Acoustic matching layers are widely employed in high-frequency transducers which are excited by different signal types depending on applications. In this study, a theoretical method has been proposed to investigate the dependence of…

Applied Physics · Physics 2020-12-02 Chunying Wang , Cong Wang , Yu Lana , Wenwu Caod

Instead of analog electronic circuits and components, digital controllers that are capable of active multi-resonant piezoelectric shunting are applied to elastic metamaterials integrated with piezoelectric patches. Giving thanks to the…

Materials Science · Physics 2016-12-28 Gang Wang , Jianqing Cheng , Jingwei Chen , Yunze He

The development of smart textile interfaces is hindered by the inclusion of rigid hardware components and batteries within the fabric, which pose challenges in terms of manufacturability, usability, and environmental concerns related to…

Human-Computer Interaction · Computer Science 2025-04-15 Weiye Xu , Tony Li , Yuntao Wang , Xing-dong Yang , Te-yen Wu

Millimeter-wave (30-300 GHz) and Terahertz-band communications (0.3-10 THz) are envisioned as key wireless technologies to satisfy the demand for Terabit-per-second (Tbps) links in the 5G and beyond eras. The very large available bandwidth…

Signal Processing · Electrical Eng. & Systems 2019-04-18 Shuai Nie , Josep M. Jornet , Ian F. Akyildiz

Breath analysis has emerged as a critical tool in health monitoring, offering insights into respiratory function, disease detection, and continuous health assessment. While traditional contact-based methods are reliable, they often pose…

Machine Learning · Computer Science 2025-08-14 Almustapha A. Wakili , Babajide J. Asaju , Woosub Jung

Laser ultrasonic non-destructive testing is widely used for the inspection of mechanical structures. This method uses the propagation of ultrasonic guided waves (UGW) in the media. For this purpose, it has been demonstrated that the…

Willis materials are complex media characterized by four macroscopic material parameters, the conventional mass density, and bulk modulus and two additional Willis coupling terms, which have been shown to enable unsurpassed control over the…

Applied Physics · Physics 2019-06-12 Yuxin Zhai , Hyung-Suk Kwon , Bogdan-Ioan Popa

Topological phononics enabling backscattering-immune transport is expected to improve the performance of electromechanical systems for classical and quantum information technologies. Nonetheless, most of the previous demonstrations utilized…

Mesoscale and Nanoscale Physics · Physics 2024-08-05 Daiki Hatanaka , Hiroaki Takeshita , Motoki Kataoka , Hajime Okamoto , Kenji Tsuruta , Hiroshi Yamaguchi

This paper introduces a micro-lattice based metamaterial for low frequency wide-band vibration attenuation, that is enabled by engineering the metamaterial's building blocks to induce local resonance bandgaps for elastic waves in all…

Applied Physics · Physics 2019-12-19 Nikhil JRK Gerard , Mourad Oudich , Yun Jing

There is an unmet clinical need for developing novel methods to complement and replace the current radiation-emitting imaging-based methods for the detection of loose pedicle screws as a complication after spinal fusion surgery which fail…

This paper presents a novel wireless silent speech interface (SSI) integrating multi-channel textile-based EMG electrodes into headphone earmuff for real-time, hands-free communication. Unlike conventional patch-based EMG systems, which…

Amplification of signal intensity is essential for initiating physical processes, diagnostics, sensing, communications, and scientific measurement. During traditional amplification, the signal is amplified by multiplying the signal carriers…

Optics · Physics 2014-07-14 R. Maram , J. van Howe , M. Li , J. Azaña

Continuous health monitoring using wireless body area networks (WBANs) of wearable, epidermal and implantable medical devices is envisioned as a transformative approach to healthcare. Rapid advances in biomedical sensors, low-power…

Signal Processing · Electrical Eng. & Systems 2018-10-02 Nadeen Rishani , Hadeel Elayan , Raed Shubair , Asimina Kiourti

Recent growth in popularity of mobile and wearable devices has re-ignited the need for reliable and stealthy communication side-channels to enable applications such as secret/PIN sharing, co-location proofs and user authentication. Existing…

Signal Processing · Electrical Eng. & Systems 2025-01-14 Raveen Wijewickrama , Sameer Anis Dohadwalla , Anindya Maiti , Murtuza Jadliwala , Sashank Narain

Lensless imaging is an elegant approach to high-resolution microscopy, which is rapidly gaining popularity in applications where imaging optics are problematic. However, current lensless imaging methods require objects to be placed within a…

Perceptualizing tool interactions with deformable structures in surgical procedures remains challenging, as unimodal visualization techniques often fail to capture the complexity of these interactions due to constraints such as occlusion…

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