A sustainable self-generating system driven by human energy for wearable safety solutions DOI Creative Commons

Se Yeong Jeong,

Wei-Chieh Liu,

Jae Yong Cho

et al.

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: 23, P. 100667 - 100667

Published: July 1, 2024

With the improvement in people's quality of life, requirements for health and safety are also increasing. While many wearable devices available, those specifically designed night workers have yet to be effectively utilized. A survey conducted with 100 revealed that they expressed concerns about their colleagues due lack visibility while working on road at night. To address this issue, a electromagnetic energy generator was as permanent solution increase by illuminating LEDs reduce discomfort associated devices. The can integrated uniforms converts kinetic generated human body during work into electrical power. achieved maximum output power 4.28 mW under 2.8 Hz, density is 51.56 μW/cm3. LED brightness driven reached 218 Lux. ensure user customization, Living Lab strategy employed, allowing direct participation development process incorporating improvements based feedback. After gathering feedback from workers, uniform redesigned revised multiple times. Ultimately, product received high satisfaction scores successfully delivered local municipalities. This paper details comprehensive study covering needs design.

Language: Английский

Assessing mechanical and stray magnetic field energy harvesting capabilities in lead-free PVDF/BCT-BZT composites integrated with metglas DOI
Durga Prasad Pabba,

Nayak Ram,

J. Kaarthik

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(18), P. 33009 - 33017

Published: June 13, 2024

Language: Английский

Citations

4
Ratcheting Energy Harvester with Limiting Springs for Self-powered Sensing system DOI
Xin Jiang, Yan Liu, Jizhou Han

et al.

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116364 - 116364

Published: Feb. 1, 2025

Language: Английский

Citations

0
Hybrid Nanogenerator Inspired by Biomimetic Structure of Bird Fluttering Wings DOI
Hui Zhou, Xiutong Wang,

Youbo Nan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

To efficiently collect mechanical energy from the marine environment and reliably provide clean for low-power equipment is main aim of this study. In study, a triboelectric-piezoelectric hybrid generator with flapping wing structure was designed, inspired by movement birds. Piezoelectric thin films serve as elastic supports vertical contact-separation-mode triboelectric nanogenerators (TENG) can an external output. And coupled cantilever beam piezoelectric harvester concentrated mass, achieving significant reduction in eigenfrequency entire structure. Making its close to frequency range waves more suitable collecting random environments. indoor sink, electrical output be cached capacitor enable normal operation small electronic devices. When power provided cathodic protection, open-circuit potential 304SS reduced 270 mV, greatly improving corrosion resistance. This provides design consideration future supply future.

Language: Английский

Citations

0
A novel smart energy harvester with Arc-type auxetic cellular core DOI
Farzad Ebrahimi,

M. Parsi

European Journal of Mechanics - A/Solids, Journal Year: 2025, Volume and Issue: unknown, P. 105716 - 105716

Published: May 1, 2025

Language: Английский

Citations

0
Stretchable Sensor Materials Applicable to Radiofrequency Coil Design in Magnetic Resonance Imaging: A Review DOI Creative Commons
R. Vázquez, Elizaveta Motovilova, Simone Winkler

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(11), P. 3390 - 3390

Published: May 24, 2024

Wearable sensors are rapidly gaining influence in the diagnostics, monitoring, and treatment of disease, thereby improving patient outcomes. In this review, we aim to explore how these advances can be applied magnetic resonance imaging (MRI). We begin by (i) introducing limitations current flexible/stretchable RF coils then move broader field flexible sensor technology identify translatable technologies. To goal, discuss (ii) emerging materials currently used for substrates, (iii) stretchable conductive materials, (iv) pairing matching conductors with (v) implementation lumped elements such as capacitors. Applicable (vi) fabrication methods presented, review concludes a brief commentary on (vii) discussed technologies MRI coil applications. The main takeaway our research is that large body work has led exciting new innovations allowing wearables, but further exploration manufacturing techniques remains necessary, especially when diagnostics.

Language: Английский

Citations

2
A single‐inductor self‐powered SECE interface circuit for dynamic load multi‐PZTs energy harvesting DOI Creative Commons
Saman Shoorabi Sani

IET Power Electronics, Journal Year: 2024, Volume and Issue: 17(15), P. 2613 - 2630

Published: Nov. 1, 2024

Abstract There is always considerable inconsistency between the input energy and amount of required for load in piezoelectric transducers (PZTs) harvesting interface circuits that often degrades performance most them. Multiple (multi‐PZTs) vibration scavenging may address this issue by enhancing power and, consequently, environmental adaptability reliability. The proposed circuit extract from a PZT array regardless each amplitude, frequency, or phase, even under dynamic heavy circumstances. thoroughly simulated LTSpice software evaluated post‐simulation calculations discussions. simulation findings demonstrate self‐powered (SP) SECE‐based multi‐PZT EH circuit, named MI‐SP‐SECE, can peak 12.8 µW three PZTs provided actual scenario at regime with excitation 1.5 g 50 Hz. circuit's integration efficiencies are 75% 85%, respectively. It achieve enhancement 2.8× relative to multi‐input full‐bridge rectifier. In addition, scalable effectively because it requires just one inductor component.

Language: Английский

Citations

2
Wearable sensor technology and medical robotics for fatigue assessment using electromyography signal processing DOI
Haewon Byeon,

Mohammed E. Seno,

Mohd Shukri Ab Yajid

et al.

Signal Image and Video Processing, Journal Year: 2024, Volume and Issue: 18(12), P. 8767 - 8780

Published: Aug. 19, 2024

Language: Английский

Citations

1
Dielectric Elastomer Generators: Recent Advances in Materials, Electronic Circuits, and Prototype Developments DOI Creative Commons

Krishna Veer Singh Gurjar,

Anup Sankar Sadangi, Ajeet Kumar

et al.

Advanced Energy and Sustainability Research, Journal Year: 2024, Volume and Issue: 6(1)

Published: Nov. 13, 2024

The ongoing climate crisis requires innovative methods to maximize renewable and sustainable energy resources. There have been advancements in harvesting from ambient motions such as wind, ocean waves, human movements. Dielectric elastomer generators (DEGs) are a promising option for due their high density compatibility with low‐frequency oscillations. This review provides an in‐depth overview of DEGs, including electroactive materials, electromechanical characterization, electronics harvesting, interfacing circuits, prototypes, challenges. DEGs the potential play significant role decarbonizing both small‐ large‐scale applications using sources.

Language: Английский

Citations

1
Hybrid Nanogenerator Inspired by Biomimetic Structure of Bird Fluttering Wings DOI
Hui Zhou, Xiutong Wang,

Youbo Nan

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
A sustainable self-generating system driven by human energy for wearable safety solutions DOI Creative Commons

Se Yeong Jeong,

Wei-Chieh Liu,

Jae Yong Cho

et al.

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: 23, P. 100667 - 100667

Published: July 1, 2024

With the improvement in people's quality of life, requirements for health and safety are also increasing. While many wearable devices available, those specifically designed night workers have yet to be effectively utilized. A survey conducted with 100 revealed that they expressed concerns about their colleagues due lack visibility while working on road at night. To address this issue, a electromagnetic energy generator was as permanent solution increase by illuminating LEDs reduce discomfort associated devices. The can integrated uniforms converts kinetic generated human body during work into electrical power. achieved maximum output power 4.28 mW under 2.8 Hz, density is 51.56 μW/cm3. LED brightness driven reached 218 Lux. ensure user customization, Living Lab strategy employed, allowing direct participation development process incorporating improvements based feedback. After gathering feedback from workers, uniform redesigned revised multiple times. Ultimately, product received high satisfaction scores successfully delivered local municipalities. This paper details comprehensive study covering needs design.

Language: Английский

Citations

0