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Terahertz communications is a promising modality for future short-range point-to point wireless data transmission at rates up to terabit per second. A milestone towards this goal is the development of an integrated transmitter and receiver…

Micro-scale implantable medical devices (IMDs) extend the immense benefits of sensors used in health management. However, their development is limited by many requirements and challenges, such as the use of safe materials, size…

信息论 · 计算机科学 2018-06-19 Michael Okwori , Ali Behfarnia , Phanikumar Vuka , Ali Eslami

Heart sound stethoscope is primary stage to access diseases. In this paper design of an electronic stethoscope with the functions of wireless transmission is discussed. This electronic stethoscope based on embedded processor. The data can…

其他计算机科学 · 计算机科学 2012-02-09 D. D. Kadam Patil , R. K. Shastri

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

The wireless power transfer efficiency to implanted bioelectronic devices is constrained by several frequency-dependent physical mechanisms. Recent works have developed several mathematical formulations to understand these mechanisms and…

Integrated photonic sensors can provide large scale, flexible detection schemes. Photonic crystal slabs (PCS) offer a miniaturized platform for wideband, sensitive ultrasound detection by exploiting the photoelastic effect in water.…

应用物理 · 物理学 2021-08-17 Eric Y. Zhu , Maria Charles-Herrera , Cory Rewcastle , Raanan Gad , Li Qian , Ofer Levi

Photoacoustic imaging has emerged as a powerful, non-invasive modality for various biomedical applications. Conventional photoacoustic systems require contact-based ultrasound detection and expensive and bulky high-power lasers for the…

应用物理 · 物理学 2025-01-06 Emiel Dieussaert , Roel Baets , Hilde Jans , Xavier Rottenberg , Yanlu Li

Objective: The objective of this work is an attempt towards non-contact freehand 3D ultrasound imaging with minimal complexity added to the existing point of care ultrasound (POCUS) systems. Methods: This study proposes a novel approach of…

图像与视频处理 · 电气工程与系统科学 2023-10-09 Antony Jerald , A. N. Madhavanunni , Gayathri Malamal , Mahesh Raveendranatha Panicker

Wireless communication has become a standard solution to address ever-increasing demands for information transfer in our modern society. Conventional systems work in an active way in the sense that an active carrier signal is mandatorily…

应用物理 · 物理学 2020-08-26 Hanting Zhao , Ya Shuang , Menglin Wei , Tie Jun Cui , Philipp del Hougne , Lianlin Li

Ultrasound-matter interactions underpin numerous biomedical and soft-matter applications, yet simulating these phenomena is challenging due to the large separation of viscous and sonic time scales. Continuum methods capture large-scale wave…

软凝聚态物质 · 物理学 2026-02-18 Urban Čoko , Tilen Potisk , Matej Praprotnik

Within this work a passive and wireless magnetic sensor, to monitor linear displacements is proposed. We exploit recent advances in 3D printing and fabricate a polymer bonded magnet with a spatially linear magnetic field component…

Implantable wireless bioelectronic devices enable communication and/or power transfer through RF wireless connections with external nodes. These devices encounter notable design challenges due to the lossy nature of the host body, which…

医学物理 · 物理学 2024-07-03 Mingxiang Gao , Sujith Raman , Zvonimir Sipus , Anja K. Skrivervik

In the present contribution, we introduce a wireless optical communication-based system architecture which is shown to significantly improve the reliability and the spectral and power efficiency of the transcutaneous link in cochlear…

Optical wireless communications (OWCs) have been recognized as a candidate enabler of next generation in-body nano-scale networks and implants. The development of an accurate channel model capable of accommodating the particularities of…

系统与控制 · 电气工程与系统科学 2021-05-07 Stylianos E. Trevlakis , Alexandros-Apostolos A. Boulogeorgos , Nestor D. Chatzidiamantis

Wireless underground sensor networks (WUSNs) present a variety of new research challenges. Magnetic induction (MI) based transmission has been proposed to overcome the very harsh propagation conditions in underground communications in…

信息论 · 计算机科学 2016-11-17 S. Kisseleff , B. Sackenreuter , I. F. Akyildiz , W. Gerstacker

Every year more than 2.3 million joint replacement is performed worldwide. Around 10% of these replacements fail those results in revisions at a cost of $8 billion per year. In particular patients younger than 55 years of age face higher…

信号处理 · 电气工程与系统科学 2024-10-03 Amirhossein Yazdkhasti , Sophie Lloyd , Joseph H. Schwab , Miao Yu , Hamid Ghaednia

We propose a method that uses inaudible ultrasonic waves to address the issue of uplink transmission in visible light communication. Our scheme, which applies frequency-shift keying modulation and receive beamforming by a microphone array,…

信号处理 · 电气工程与系统科学 2024-01-12 Ming Che

Contact tracing is a well-established and effective approach for the containment of the spread of infectious diseases. While Bluetooth-based contact tracing method using phones has become popular recently, these approaches suffer from the…

网络与互联网体系结构 · 计算机科学 2021-09-16 Amee Trivedi , Camellia Zakaria , Rajesh Balan , Prashant Shenoy

A physiological signal monitoring system and alerting system using wireless technology is presented. The two types of physiological signal monitoring are captured from the body through leads and using the radio-frequency transmitting and…

人机交互 · 计算机科学 2014-09-09 Ramesh. GP , Aravind. CV , Rajparthiban. R , N. Soysa

In this work, we study the electrodynamics of metamaterials that consist of resonant non-magnetic inclusions embedded in an epsilon-near-zero (ENZ) host medium. It is shown that the inclusions can be designed in such a way that both the…

材料科学 · 物理学 2015-06-25 Mario Silveirinha , Nader Engheta