Showing 241 - 260 results of 287 for search '"accelerometer"', query time: 0.05s Refine Results
  1. 241

    A New Sensors-Based Covert Channel on Android by Ahmed Al-Haiqi, Mahamod Ismail, Rosdiadee Nordin

    Published 2014-01-01
    “…This paper is an attempt to reveal a new covert channel, not only being specific to smartphones, but also exploiting an unusual resource as a vehicle to carry covert information: sensors data. Accelerometers generate signals that reflect user motions, and malware applications can apparently only read their data. …”
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  2. 242

    Key accelerometry measures for understanding walking sway during dual-task exercises by Abdulaziz A. Alkathiry

    Published 2025-02-01
    “…Methods: Twenty-six healthy adults participated in this study, undergoing various cognitive dual-task conditions while walking. Accelerometers were attached to the lower back to record center-of-mass (COM) acceleration in anterior-posterior (AP) and mediolateral (ML) directions. …”
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  3. 243

    Nonlinear Seismic Performance Evaluation of Flexural Slotted Connection Using Endurance Time Method by Seyed Mohamad Seyed Kolbadi, Hosein Piri, Ali Keyhani, S.Mahdi Seyed-Kolbadi, Masoud Mirtaheri

    Published 2020-01-01
    “…Among these methods, the third one is more accurate; however, it requires more time to align the accelerometers due to a large number of analyses. In the endurance time (ET) method, incremental acceleration functions gradually and uniformly increases over time while their linear and nonlinear response spectra are proportional to the mean of the real seismic spectrum. …”
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  4. 244

    Isotemporal substitution of sedentary time with different physical activity intensities and sleep in obesity parameters across eight latin American countries by Eduardo Rossato de Victo, Diego Sales, Diego G. D. Christofaro, Mauro Fisberg, Irina Kovalskys, Pablo del Val Martín, Gerson Ferrari

    Published 2025-02-01
    “…Physical activity, ST and sleep were objectively measured using accelerometers. The parameters of obesity were defined using body mass index (BMI) and waist circumference (WC). …”
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  5. 245

    Detection of seismic anisotropy and azimuthally varying resonances from seismic data recorded at the Noto Peninsula using seismic interferometry and empirical mode decomposition by Andrés Pech-Pérez

    Published 2025-12-01
    “…The ISKH06 and ISKH04 stations have boreholes equipped with triaxial accelerometers at depths of 200 m and 100 m, respectively, as well as at the surface. …”
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  6. 246

    A comparative study of machine learning algorithms for fall detection in technology-based healthcare system: Analyzing SVM, KNN, decision tree, random forest, LSTM, and CNN by Afuan Lasmedi, Isnanto R. Rizal

    Published 2025-01-01
    “…This study aims to compare the performance of six classification algorithms: Support Vector Machine (SVM), K-Nearest Neighbors (KNN), Decision Tree, Random Forest, Long Short-Term Memory (LSTM), and Convolutional Neural Networks (CNN) in detecting fall incidents using wearable sensor data such as accelerometers and gyroscopes. The research utilizes a dataset consisting of 1,428 training samples and 573 testing samples, evaluated using a 10-fold cross-validation technique. …”
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  7. 247

    Smartwatches and measurement of physical activity, sedentary behavior, and sleep: a scoping review by José Francisco da Silva, Antonio Henrique Germano-Soares, Luis Carlos Barbosa Silva, Valter Cordeiro Barbosa Filho, Tuillamys Virgínio de Oliveira, Thiago Coelho de Aguiar Silva, Rafael Miranda Tassitano

    Published 2025-01-01
    “… Introduction: The use of accelerometers to measure physical activity (PA), sedentary behavior (SB), and sleep has significantly impacted public health, though limitations such as storage capacity and cost persist. …”
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  8. 248

    Cardiovascular Responses Associated with Daily Walking in Subacute Stroke by Sanjay K. Prajapati, Avril Mansfield, William H. Gage, Dina Brooks, William E. McIlroy

    Published 2013-01-01
    “…Participants wore heart rate monitors and accelerometers during a typical rehabilitation day. Walking-related changes in heart rate and walking bout duration were determined. …”
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  9. 249

    Physical Activity and Sedentary Patterns among Metabolically Healthy Individuals Living with Obesity by Marika de Winter, Brittany V. Rioux, Jonathan G. Boudreau, Danielle R. Bouchard, Martin Sénéchal

    Published 2018-01-01
    “…Time spent in bouts of 1, 5, 10, 30, and 60 minutes for moderate-to-vigorous physical activity (MVPA) and sedentary time was measured objectively using accelerometers. Participants were categorized as MHO if they had no cardiometabolic risk factors above the identified thresholds (triglycerides, high-density lipoprotein cholesterol, systolic blood pressure, diastolic blood pressure, and glucose). …”
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  10. 250

    OpenNavSense platform: A low-cost, open-source inertial navigation system for the evaluation of estimation algorithms by Pablo Raul Yanyachi, Jorch Mendoza-Chok, Brayan Espinoza-Garcia, Juan Carlos Cutipa Luque, Daniel Yanyachi Aco Cardenas

    Published 2025-03-01
    “…The platform incorporates accelerometers, gyroscopes, magnetometers, Global Positioning System (GPS) module, and barometer sensors. …”
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  11. 251

    An Experimental Study and Mathematical Modeling of Vibration Transfer in Pistachio Trees Using an Inertia-Type Trunk Shaker and Field-Adapted Wireless Sensors by Ruijun Ma, Taymaz Homayouni, Arash Toudeshki, Reza Ehsani, Xiaohua Zhang

    Published 2022-01-01
    “…The vibration acceleration of the real pistachio tree was measured using a wireless network of 3-axis accelerometers installed on the shaker head and different parts of the trees during the shaking harvest. …”
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  12. 252

    Device-measured physical activity in adults born preterm with very low birth weight and mediation by motor abilities. by Silje Dahl Benum, Kristina Anna Djupvik Aakvik, Cathrin Vano Mehl, Atle Kongsvold, Stian Lydersen, Maria Vollsæter, Paul Jarle Mork, Eero Kajantie, Kari Anne I Evensen

    Published 2025-01-01
    “…In a joint assessment of two longitudinal birth cohorts from Finland and Norway, PA was measured by two tri-axial accelerometers in 87 adults born preterm with VLBW and 109 controls born at term. …”
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  13. 253

    Development of an information measuring and control system for a quadrocopter by V. V. Sleptsov, V. L. Afonin, A. E. Ablaeva, Ba Phuong Dinh

    Published 2021-12-01
    “…A special feature of this work is to take into account the specific characteristics of the elements: adjustable electric drives (both direct and alternating current), parameter sensors (barometers, accelerometers, rangefinders, etc.). The paper studies an illustrative algorithm for the operation of the informationmeasuring and control system of the quadcopter. …”
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  14. 254

    The impact of Daylight Saving Time on dog activity. by Lavania Nagendran, Ming Fei Li, David R Samson, Lauren Schroeder

    Published 2025-01-01
    “…The objective of this study was to assess how DST influenced the morning activity pattern of dogs (Canis familiaris). We used accelerometers to record activity in 25 sled dogs and 29 caregiver-companion dog dyads located in or near Ontario, Canada during the Fall Back time shift. …”
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  15. 255

    Stakeholder Driven Sensor Deployments to Characterize Chronic Coastal Flooding in Key West Florida by K. L. O’Donnell, T. Tomiczek, A. Higgins, S. Munoz, S. Scyphers

    Published 2024-07-01
    “…This paper presents a novel technique to record chronic coastal flooding using inexpensive accelerometers. This technique was tested in Key West, FL, USA using storm drains to deploy HOBO pendant G data loggers. …”
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  16. 256

    Underwater DVL Optimization Network (UDON): A Learning-Based DVL Velocity Optimizing Method for Underwater Navigation by Feihu Zhang, Shaoping Zhao, Lu Li, Chun Cao

    Published 2025-01-01
    “…The utilization of the raw measurement data from an Inertial Measurement Unit (IMU), which includes gyroscopes and accelerometers, to assist the DVL in velocity vector estimation and to refine it towards the Global Positioning System (GPS) velocity vector, compensates for the external environmental interference affecting the DVL, therefore enhancing the navigation accuracy. …”
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  17. 257

    Estimating Satellite Orbital Drag During Historical Magnetic Superstorms by Denny M. Oliveira, Eftyhia Zesta, Hisashi Hayakawa, Ankush Bhaskar

    Published 2020-11-01
    “…Extreme magnetic storms (minimum Dst ≤ −250 nT) are extremely rare: Only seven events occurred during the era of spacecraft with high‐level accelerometers such as CHAMP (CHAllenge Minisatellite Payload) and GRACE (Gravity Recovery And Climate experiment) and none with minimum Dst ≤ −500 nT, here termed magnetic superstorms. …”
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  18. 258

    Effectiveness and maintenance of behavior change and exercise programs on depressive symptoms in older adults by Lucelia Borges, Simone Meurer, Tânia Benedetti

    Published 2017-03-01
    “…The DS were measured by the Geriatric Depression Scale (GDS-15) and level of physical activity (LPA) through accelerometers. Results show that only BCG reduced the number of older adults with high DS (A1=9; A2=4) and this reduction was maintained after six (A3=3) and twelve months (A4=4). …”
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  19. 259

    Seismic Performance Assessment of Ordinary Moment Resisting Frame Equipped with Viscous Dampers under Pulse-Like Earthquakes by Amir Yousefpour, Hamid Mazidababdi Farahani, Mohsen Ali Shayanfar

    Published 2022-01-01
    “…Seven near-fault pulsed and seven far-fault nonpulsed accelerometers are applied. The structural behavior in four modes is examined: (1) without damper and soil-structure interaction effect, (2) without damper and considering soil-structure interaction effect, (3) with damper and considering soil-structure interaction, and (4) with damper without considering soil-structure interaction. …”
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  20. 260

    Associations of daily steps and step intensity with peripheral arterial disease in Chinese community-dwelling older women by Chenfei Li, Litao Du, Xiangli Xue, Na Zhao, Qiang He, Si Chen, Xianliang Zhang

    Published 2025-03-01
    “…Daily steps and step intensity were measured via tri-axial accelerometers. Multivariate logistic regression was used to investigate associations of step variable with PAD. …”
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