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Contactless inductive flow tomography [PDF]
Physical Review E, 2004 The three-dimensional velocity field of a propeller driven liquid metal flow is reconstructed by a contactless inductive flow tomography (CIFT). The underlying theory is presented within the framework of an integral equation system that governs the ...
Frank Stefani +3 more
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Towards a Contactless Stress Classification Using Thermal Imaging
Sensors, 2022 Thermal cameras capture the infrared radiation emitted from a body in a contactless manner and can provide an indirect estimation of the autonomic nervous system (ANS) dynamics through the regulation of the skin temperature.
Federica Gioia +3 more
doaj +1 more source
Information Technology and Libraries, 2022 Contactless services have become a common way for public libraries to provide services. As a result, the strategy used by public libraries in China will effectively stop the spread of epidemics caused by human touch and will serve as a model for other libraries throughout the world.
Guo, Yajun +4 more
openaire +3 more sources
Frontiers in Aging Neuroscience, 2021 Assessing the progression of movement disorders such as Parkinson's Disease (PD) is key in adjusting therapeutic interventions. However, current methods are still based on subjective factors such as visual observation, resulting in significant inter ...
Augusto Garcia-Agundez, Carsten Eickhoff
doaj +1 more source
AIMS Agriculture and Food, 2022 The development of the global model is an important part of research involving the quality prediction of agricultural commodities using visible/near-infrared (Vis/NIR) spectroscopy due to its efficiency and effectiveness.
Kusumiyati Kusumiyati +3 more
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Research on Non-Contact Voltage Measurement Method Based on Near-End Electric Field Inversion
Energies, 2023 Aiming at the problems of complex equations, low accuracy, and the strict measurement point layout requirements of the existing electric field integration method, a non-contact measurement method based on the inversion voltage of the near electric field ...
Shangpeng Sun +6 more
doaj +1 more source
PTT-based Contact-less Blood Pressure Measurement using an RGB-Camera
Current Directions in Biomedical Engineering, 2021 Commonly used blood pressure measurement devices have noticeable limitations in accuracy, measuring time, comfort or safety. To overcome these limitations, we developed and tested a surrogate-based, non-invasive blood pressure measurement method using an
Wuerich Carolin +3 more
doaj +1 more source
Speckle Vibrometry for Instantaneous Heart Rate Monitoring
Sensors, 2023 Instantaneous heart rate (IHR) has been investigated for sleep applications, such as sleep apnea detection and sleep staging. To ensure the comfort of the patient during sleep, it is desirable for IHR to be measured in a contact-free fashion.
Shuhao Que +6 more
doaj +1 more source
Unsupervised Detection of Multiple Sleep Stages Using a Single FMCW Radar
Applied Sciences, 2023 The paper proposes a unsupervised method for detecting the three stages of sleep—wake, rapid eye movement (REM) sleep, and non-REM sleep—using biosignals obtained from a 61 GHz single frequency modulated continuous wave (FMCW) radar.
Young-Keun Yoo +2 more
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Vital Sign Monitoring Using FMCW Radar in Various Sleeping Scenarios
Sensors, 2020 Remote monitoring of vital signs for studying sleep is a user-friendly alternative to monitoring with sensors attached to the skin. For instance, remote monitoring can allow unconstrained movement during sleep, whereas detectors requiring a physical ...
Emmi Turppa +3 more
doaj +1 more source