Results 81 to 90 of about 141,792 (282)

Machine Learning Methods for Classifying Human Physical Activity from On-Body Accelerometers

open access: yesSensors, 2010
The use of on-body wearable sensors is widespread in several academic and industrial domains. Of great interest are their applications in ambulatory monitoring and pervasive computing systems; here, some quantitative analysis of human motion and its ...
Angelo Maria Sabatini, Andrea Mannini
doaj   +1 more source

AI‐Enhanced Vibrational Capsule for Minimally Invasive Detection of Abnormal Bowel Tissue

open access: yesAdvanced Science, EarlyView.
A fully integrated vibration‐assisted capsule is presented for the minimally invasive detection of bowel lesions. The capsule incorporates a wireless sensor and an eccentric motor to probe tissue mechanics in situ. By coupling triaxial vibration signals with AI‐based classification and analytical modeling, the system enables early, non‐visual ...
Xizheng Fang   +6 more
wiley   +1 more source

Artifact Noise Removal Techniques on Seismocardiogram Using Two Tri-Axial Accelerometers

open access: yesSensors, 2018
The aim of this study is on the investigation of motion noise removal techniques using two-accelerometer sensor system and various placements of the sensors on gentle movement and walking of the patients.
Loc Luu, Anh Dinh
doaj   +1 more source

Mixed signal approach for rapid prototyping of a compact smart pebble for sediment transport monitoring in river beds [PDF]

open access: yes, 2005
Low-cost accelerometers and gyro ICs were used to develop a smart sediment particle to study the sediment transport in rivers. With strap-down MEMS, battery, a processing subsystem and memory, this self contained unit captures semiprocessed data for ...
Kularatna, Nihal   +2 more
core   +2 more sources

Repeated Disuse Atrophy Imprints a Molecular Memory in Skeletal Muscle: Transcriptional Resilience in Young Adults and Susceptibility in Aged Muscle

open access: yesAdvanced Science, EarlyView.
Repeated disuse imprints a molecular memory in skeletal muscle, conferring transcriptional resilience in young adults but exaggerated susceptibility in aged muscle, driven by epigenetic regulation of aerobic metabolism, mitochondrial and NAD+ pathways.
Daniel C. Turner   +14 more
wiley   +1 more source

A Wavelet-Based Approach to Fall Detection

open access: yesSensors, 2015
Falls among older people are a widely documented public health problem. Automatic fall detection has recently gained huge importance because it could allow for the immediate communication of falls to medical assistance. The aim of this work is to present
Luca Palmerini   +5 more
doaj   +1 more source

Microelectromechanical system gravimeters as a new tool for gravity imaging [PDF]

open access: yes, 2018
A microelectromechanical system (MEMS) gravimeter has been manufactured with a sensitivity of 40 ppb in an integration time of 1 s. This sensor has been used to measure the Earth tides: the elastic deformation of the globe due to tidal forces.
Bramsiepe, Steven G.   +8 more
core   +1 more source

A smart headband for multimodal physiological monitoring in human exercises

open access: yesAdvanced Science, EarlyView.
A novel smart headband incorporating a thermal‐sensation‐based electronic skin is presented for continuous and accurate multimodal physiological monitoring, including pulse waveforms, total metabolic energy expenditure, heart rate, and forehead temperature, across both static and dynamic daily activities.
Shiqiang Liu   +7 more
wiley   +1 more source

Adaptive Data Filtering of Inertial Sensors with Variable Bandwidth

open access: yesSensors, 2015
MEMS (micro-electro-mechanical system)-based inertial sensors, i.e., accelerometers and angular rate sensors, are commonly used as a cost-effective solution for the purposes of navigation in a broad spectrum of terrestrial and aerospace applications ...
Mushfiqul Alam, Jan Rohac
doaj   +1 more source

Dynamic Monitoring of a Mid-Rise Building by Real-Aperture Radar Interferometer: Advantages and Limitations

open access: yesRemote Sensing, 2020
In this paper, remote and in situ techniques to estimate the dynamic response of a building to ambient vibration are reported: data acquired through a real-aperture radar (RAR) interferometer and conventional accelerometers are analyzed.
Rodrigo E. Alva   +5 more
doaj   +1 more source

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