Results 71 to 80 of about 143,049 (302)

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

open access: yesAdvanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab   +10 more
wiley   +1 more source

Monitoring Tree Sway as an Indicator of Interception Dynamics Before, During, and Following a Storm

open access: yesGeophysical Research Letters, 2021
Understanding the role of trees in attenuating the timing and magnitude of effective precipitation reaching the land surface requires improved monitoring of interception dynamics.
Dominick M. Ciruzzi   +1 more
doaj   +1 more source

A Large‐Area Broadband Multimodal Dual‐Resonant Haptic Device for Bidirectional Telerobotic and Augmented Interactions

open access: yesAdvanced Science, EarlyView.
We present a large‐area bidirectional human–machine interface integrating electrostatic multimodal tactile sensing with a dual‐resonant haptic actuator. The system enables linear pressure sensing that is decoupled from actuation and stable broadband vibrotactile feedback under dynamic contact conditions, supporting real‐time feedback modulation aligned
Jihun Son   +16 more
wiley   +1 more source

Magnetic orientation system based on magnetometer, accelerometer and gyroscope

open access: yesCAAI Transactions on Intelligence Technology, 2019
Magnetic orientation systems have widely been used by measuring the earth magnetic field and provide a pervasive source of directional information.
Zhiwei Chu   +4 more
doaj   +1 more source

Alternate Method of Pavement Assessment Using Geophones and Accelerometers for Measuring the Pavement Response

open access: yesInfrastructures, 2020
Pavement instrumentation with embeddable in-situ sensors has been a feasible approach to determine pavement deteriorations. Determining pavement deflections during the passage of the load is a promising strategy to determine the overall performance of ...
Natasha Bahrani   +3 more
doaj   +1 more source

A Comparison of Video and Accelerometer Based Approaches Applied to Performance Monitoring in Swimming. [PDF]

open access: yes, 2009
The aim of this paper is to present a comparison of video- and sensor based studies of swimming performance. The video-based approach is reviewed and contrasted to the newer sensor-based technology, specifically accelerometers based upon Micro-Electro ...
Callaway, Andrew   +2 more
core   +1 more source

Flexible IMU Sensor Array For 3D Colonoscope Shape Reconstruction and AI‐Based Loop Detection

open access: yesAdvanced Science, EarlyView.
We propose a sensing platform for 3D visualization of the colonoscope combined with artificial intelligence (AI)‐based loop detection. The system consists of an array of 15 inertial measurement units (IMUs) mounted on a flexible printed circuit board that can be retrofitted into the instrument channel of conventional colonoscopes.
Tuukka Panula   +3 more
wiley   +1 more source

Wearable Inertial Sensors to Assess Standing Balance: A Systematic Review

open access: yesSensors, 2019
Wearable sensors are de facto revolutionizing the assessment of standing balance. The aim of this work is to review the state-of-the-art literature that adopts this new posturographic paradigm, i.e., to analyse human postural sway through inertial ...
Marco Ghislieri   +4 more
doaj   +1 more source

Effect of a moderate-intensity demonstration walk on accuracy of physical activity self-report. [PDF]

open access: yes, 2017
Background/Objective:Providing a demonstration of a 10-minute bout of moderate-to-vigorous intensity physical activity (MVPA) immediately prior to subjective reporting of MVPA could influence self-reported activity by calibrating both duration and ...
Carr, Lucas J   +3 more
core   +2 more sources

Self‐Powered Bearing Sensing and Real‐Time Fault Diagnosis Enabled by Non‐Invasive Triboelectric Sensors and Edge AI Acceleration

open access: yesAdvanced Science, EarlyView.
This study achieves the synergistic integration of self‐powered sensing and edge AI acceleration to establish a real‐time fault diagnosis system. The proposed TENG‐based self‐powered bearing sensor (NSE‐TBS) and FPGA‐accelerated edge AI framework fundamentally break through the inherent limitations of conventional monitoring systems, including complex ...
Kehui Zhu   +7 more
wiley   +1 more source

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