Results 241 to 250 of about 100,530 (285)

Self-Powered Load Sensing Circuitry for Total Knee Replacement

IEEE Sensors Journal, 2021
There has been a significant increase in the number of total knee replacement (TKR) surgeries over the past few years, particularly among active young and elderly people suffering from knee pain. Continuous and optimal monitoring of the load on the knee is highly desirable for designing more reliable knee implants.
Manav Jain, Nabid Aunjum Hossain, Shahrzad Towfighian, Ryan Willing, Milutin Stanacevic, Emre Salman   +5 more
openaire   +2 more sources

Self-powered depth-sensing surfaces

Optica Latin America Optics and Photonics Conference (LAOP) 2024
High-power and privacy concerns of current depth perception technologies limit their general use in many applications. We present an approach to achieve self-powered depth sensors based on distributed photodiode networks with a limited field-of-view.
Brian Jiang, Shamik Datta, Huan T. Ngo, Zhenming Yang, Shaghayegh Mesforush, Tara Arjomandbigdeli, Canek Fuentes-Hernandez   +6 more
openaire   +1 more source

Self-powered wearable plant chlorophyll sensing patch

Biosensors and Bioelectronics
Monitoring the chlorophyll content of plants can assess crop growth, guide precise fertilization, predict crop yield, etc., which is of great significance for realizing smart agriculture. However, current chlorophyll measurement methods cannot realize this goal.
Xujun Chen, Longgang Ma, Jiawei Zhang, Ruihua Zhang, Maoyuan Yin, Zhencan Yang, Xinqing Xiao   +6 more
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A self-powered, self-sensing magnetorheological damper

2010 IEEE International Conference on Mechatronics and Automation, 2010
Magnetorheological (MR) dampers are promising for semi-active vibration control of various dynamic systems. In the current MR damper system, separate power supply and dynamic sensor are required. This paper is aimed to propose and investigate a self-powered, self-sensing MR damper, which integrates energy harvesting, sensing and MR damping technologies
Chao Chen, Wei-Hsin Liao
openaire   +1 more source

Self-powered wearable sensing devices for digital health

Materials Horizons
This review focuses on self-powered wearable sensing devices that utilize human energy, introducing their power supply mechanism and efficiency improvement methods.
Yumeng Zhang, Engui Wang, Han Ouyang, Zhou Li   +3 more
openaire   +2 more sources

Ultrasensitive self-powered pressure sensing system

Extreme Mechanics Letters, 2015
Portable and flexible pressure sensors with highly sensitive and small size have great potential applications in areas such as wearable electronics, environmental monitoring, and medical equipment. Here, we demonstrate an integrated self-powered pressure sensing system made of a passive resistive pressure sensor and a triboelectric nanogenerator. Based
Jianjun Luo, Feng Ru Fan, Tao Zhou, Wei Tang, Fei Xue, Zhong Lin Wang   +5 more
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Towards a Self-Powered ECG and PPG Sensing Wearable Device

2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2021
This paper presents a multifunctional sensor interface system-on-chip (SoC) for developing self-powered Electrocardiography (ECG) and Photoplethysmography (PPG) sensing wearable devices. The proposed SoC design consists of switch-capacitor-based LED driver and analog front-end (AFE) for PPG sensing, ECG sensing AFE, and power management unit for energy
Linran Zhao, Yaoyao Jia
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Self-powered Sensing for Chemical and Environmental Detection

2016
In this chapter, we present self-powered chemical/environmental sensors, the working principle of which relies on the changeof triboelectric charge density when the pretreated triboelectric surface has been assembled with certain chemical species, usually by immersing it in the aqueous solution of chemicals.
Wang, Zhong Lin, Lin, Long, Chen, Jun, Niu, Simiao, Zi, Yunlong   +4 more
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Flexible Technologies for Self-Powered Wearable Health and Environmental Sensing

Proceedings of the IEEE, 2015
This article provides the latest advances from the NSF Advanced Self-powered Systems of Integrated sensors and Technologies (ASSIST) center. The work in the center addresses the key challenges in wearable health and environmental systems by exploring technologies that enable ultra-long battery lifetime, user comfort and wearability, robust medically ...
Veena Misra, Alper Bozkurt, Benton H. Calhoun, Thomas N. Jackson, Jesse Jur, John C. Lach, Bongmook Lee, John Muth, Ömer Oralkan, Mehmet Ozturk, Susan Trolier-McKinstry, Daryoosh Vashaee, David D. Wentzloff, Yong Zhu 0003   +13 more
openaire   +1 more source

Strain-Insensitive Supercapacitors for Self-Powered Sensing Textiles

ACS Nano
Yarn-based supercapacitors and sensors can be easily integrated into textiles to form flexible and lightweight self-powered wearable electronic devices, which enable stable and continuous signal detection without an external power source. However, most current supercapacitors for self-powered systems lack the stretchability to adapt to complex human ...
Shasha Wang, Yimeng Li, Leqian Wei, Jianhua Zhu, Qian Zhang, Lizhen Lan, Liqin Tang, Fujun Wang, Ze Zhang, Lu Wang, Jifu Mao   +10 more
openaire   +2 more sources