Results 61 to 70 of about 141,792 (282)

Advanced Design for Weakly Coupled Resonators by Automatic Active Optimization

Advanced Materials Technologies, EarlyView.
An Automatic Active Optimization (AAO) strategy integrates machine learning predictors and genetic algorithms in a closed‐loop workflow. By iteratively expanding its dataset with new discoveries, AAO overcomes the limits of conventional methods. This approach finds superior microstructural designs beyond the initial sample space. We demonstrate this on
Wei Yue, Yuan Gao, Fanping Sui, Jason Wang, Megan Teng, Peggy Tsao, Huicong Deng, Yande Peng, Liwei Lin   +8 more
wiley   +1 more source

Application of the MEMS Accelerometer as the Position Sensor in Linear Electrohydraulic Drive

Sensors, 2021
Various distance sensors are used as measuring elements for positioning linear electrohydraulic drives. The most common are magnetostrictive transducers or linear variable differential transformer (LVDT) sensors mounted inside the cylinder.
Dominik Rybarczyk
doaj   +1 more source

Field-test of a robust, portable, frequency-stable laser [PDF]

, 2011
We operate a frequency-stable laser in a non-laboratory environment where the test platform is a passenger vehicle. We measure the acceleration experienced by the laser and actively correct for it to achieve a system acceleration sensitivity of $\Delta f
Baumann, Blatt, Chen, Chou, Chou, David R. Leibrandt, Drever, Hellwig, James C. Bergquist, Kleppner, Legero, Leibrandt, Ludlow, Ma, Michael J. Thorpe, Millo, Rosenband, Schiller, Schmidt, Thorpe, Till Rosenband, Webster, Willke, Wolf, Young, Zhang   +25 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Validation of smartphone step count algorithm used in STARFISH smartphone application [PDF]

, 2017
BACKGROUND: Smartphone sensors are underutilised in rehabilitation. OBJECTIVE: To validate the step count algorithm used in the STARFISH smartphone application. METHODS: Twenty-two healthy adults (8 male, 14 female) walked on a treadmill for 5 minutes at
Abel, Ambusam, Bohnen, Dahlgren, del Rosario, Esliger, Evenson, Feng, Kooiman, Lee, Orr, Paul, Paul, Perry, Remelius, Ryan, Storm, Sun, Tremblay, Zhang   +19 more
core   +2 more sources

Respiratory Signal Processing and Analysis Using Flexible Capacitive Sensor Data

Advanced Materials Technologies, EarlyView.
Capacitive pressure sensors based on poly(glycerol sebacate) (PGS) substrates are developed for continuous, non‐invasive respiratory monitoring. Integrated with a signal processing algorithm, they enable accurate tracking of thoracic expansion and retraction.
Bernardo A. Vicente, Raquel Sebastião, Alda Marques, Vitor Sencadas   +3 more
wiley   +1 more source

Referent data for investigations of upper limb accelerometry: harmonized data from three cohorts of typically-developing children

Frontiers in Pediatrics
AimThe rise of wearable sensing technology shows promise for addressing the challenges of measuring motor behavior in pediatric populations. The current pediatric wearable sensing literature is highly variable with respect to the number of sensors used ...
Catherine E. Lang, Catherine E. Lang, Catherine E. Lang, Catherine R. Hoyt, Jeffrey D. Konrad, Kayla R. Bell, Natasha Marrus, Marghuretta D. Bland, Marghuretta D. Bland, Marghuretta D. Bland, Keith R. Lohse, Keith R. Lohse, Allison E. Miller   +12 more
doaj   +1 more source

User-independent accelerometer-based gesture recognition for mobile devices

Advances in Distributed Computing and Artificial Intelligence Journal, 2012
Many mobile devices embed nowadays inertial sensors. This enables new forms of human-computer interaction through the use of gestures (movements performed with the mobile device) as a way of communication.
Xian WANG, Paula TARRÍO, Ana María BERNARDOS, Eduardo METOLA, José Ramón CASAR   +4 more
doaj   +1 more source

Acoustic Telemetry: A Tool to Monitor Fish Swimming Behavior in Sea-Cage Aquaculture

Frontiers in Marine Science, 2020
Acoustic telemetry techniques are very useful tools to monitor in detail the swimming behavior and spatial use of fish in artificial rearing environments at individual and group levels.
Lidia Muñoz, Eneko Aspillaga, Miquel Palmer, João L. Saraiva, Pablo Arechavala-Lopez, Pablo Arechavala-Lopez   +5 more
doaj   +1 more source

Measuring and analysing vibration motors in insoles via accelerometers [PDF]

, 2014
Purpose: Falling is a major public health concern among elderly people, and they often cause serious injuries1,2. They most frequently occur during walking and are associated with the chronic deterioration in the neuromuscular and sensory systems, as ...
Abbod, M-F, Liao, Y-X, Shieh, JS, Tang, P-T   +3 more
core   +1 more source