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Materials and Orthopedic Applications for Bioresorbable Inductively Coupled Resonance Sensors
Bioresorbable passive resonance sensors based on inductor-capacitor (LC) circuits provide an auspicious sensing technology for temporary battery-free implant applications due to their simplicity, wireless readout, and the ...
Textile-Based Batteryless Moisture Sensor
In this paper, we established a new type of passive Ultra-High-Frequency (UHF) Radio Frequency Identification (RFID) technology-based sensor with a referenced readout for moisture. We introduced the sensor system, which ...
Managing Perceived Loneliness and Social-Isolation Levels for Older Adults: A Survey with Focus on Wearables-Based Solutions
As an inevitable process, the number of older adults is increasing in many countries worldwide. Two of the main problems that society is being confronted with more and more, in this respect, are the inter-related aspects ...
Comparison of heart rate monitoring accuracy between chest strap and vest during physical training and implications on training decisions
Heart rate (HR) and heart rate variability (HRV) based physiological metrics such as Excess Post‐exercise Oxygen Consumption (EPOC), Energy Expenditure (EE), and Training Impulse (TRIMP) are widely utilized in coaching to ...
Breathable, Flexible, Transparent, Hydrophobic, and Biotic Sustainable Electrodes for Heating and Biopotential Signal Measurement Applications
Pressure to reduce the global amount of e-waste has increased in recent years. The optimal use of natural resources is a demanding area especially due to the overabundance of the use of resources and challenges with ...
Estimation of the respiratory rate from ballistocardiograms using the Hilbert transform
Background: Measuring the respiratory rate is usually associated with discomfort for the patient due to contact sensors or a high time demand for healthcare personnel manually counting it. Methods: In this paper, two methods ...
Toward Closed-Loop Electrical Stimulation of Neuronal Systems: A Review
Biological neuronal cells communicate using neurochemistry and electrical signals. The same phenomena also allow us to probe and manipulate neuronal systems and communicate with them. Neuronal system malfunctions cause a ...
Inductively Coupled Split Ring Resonator as Small RFID Pressure Sensor for Biomedical Applications
We present an inductively coupled split-ring resonator based small passive RFID pressure sensor for wireless intracranial pressure measurement. The proposed sensor has a volume as small as π×(4 mm) 2 ×1 mm. In the simulation, ...
Effect of skin tone and activity on the performance of wrist-worn optical beat-to-beat heart rate monitoring
Wrist-worn reflective photoplethysmography (PPG) has gained popularity as an unobtrusive method for heart rate monitoring, also known as optical heart rate monitoring (OHR). Recently beat-to-beat heart rate information ...
Antennas and Wireless Power Transfer for Brain-Implantable Sensors
(John Wiley & Sons., 2021)
The major challenge in developing a wireless brain implant is to establish a stable and efficient trans-cranial wireless link with an integrated implantable antenna. This chapter discusses the challenges in developing the ...