A Wearable Inertial Sensor Approach for Locomotion and Localization Recognition on Physical Activity DOI Creative Commons
Danyal Z. Khan,

Naif Al Mudawi,

Maha Abdelhaq

и другие.

Sensors, Год журнала: 2024, Номер 24(3), С. 735 - 735

Опубликована: Янв. 23, 2024

Advancements in sensing technology have expanded the capabilities of both wearable devices and smartphones, which are now commonly equipped with inertial sensors such as accelerometers gyroscopes. Initially, these were used for device feature advancement, but now, they can be a variety applications. Human activity recognition (HAR) is an interesting research area that many applications like health monitoring, sports, fitness, medical purposes, etc. In this research, we designed advanced system recognizes different human locomotion localization activities. The data collected from raw contain noise. first step, detail our noise removal process, employs Chebyshev type 1 filter to clean sensor data, then signal segmented by utilizing Hamming windows. After that, features extracted sensors. To select best system, recursive elimination method was used. We SMOTE augmentation techniques solve imbalanced nature Extrasensory dataset. Finally, augmented balanced sent long short-term memory (LSTM) deep learning classifier classification. datasets Real-World Har, Real-Life Extrasensory. presented achieved 89% 85% 95% proposed outperforms available state-of-the-art methods.

Язык: Английский

Super‐Tough, Non‐Swelling Zwitterionic Hydrogel Sensor Based on the Hofmeister Effect for Potential Motion Monitoring of Marine Animals DOI Open Access

Jiayuan Ren,

Guoqi Chen, Hailong Yang

и другие.

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 10, 2024

Hydrogel-based electronic devices in aquatic environments have sparked widespread research interest. Nevertheless, the challenge of developing hydrogel electronics underwater has not been profoundly surmounted because fragility and swelling hydrogels environments. In this work, a zwitterionic double network comprised polyvinyl alcohol (PVA), poly(sulfobetaine methacrylate) (PSBMA), sulfuric acid (H

Язык: Английский

Процитировано

24

Advances in Self-powered Triboelectric Sensor toward Marine IoT DOI
Yongjiu Zou, Minzheng Sun, Shuang Li

и другие.

Nano Energy, Год журнала: 2024, Номер 122, С. 109316 - 109316

Опубликована: Янв. 20, 2024

Язык: Английский

Процитировано

19

Highly Flexible, Stretchable, and Compressible Lignin‐Based Hydrogel Sensors with Frost Resistance for Advanced Bionic Hand Control DOI Open Access
Jian Yang, Kang Yang, Xingye An

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Bio‐based hydrogels, valued for their flexibility, tunable mechanical properties, and biocompatibility, are promising materials wearable skins sensing devices in bionic hand control systems. Lignin, a biopolymer rich functional groups, can be modified into UV‐curable monomers, enabling the development of 3D‐printed hydrogels via photopolymerization. However, inherent rigidity lignin's aromatic rings, coupled with covalent cross‐linking between lignin other often limits hydrogel's stretchability (poor strain) compressibility. Additional challenges, including poor moisture retention freeze resistance, further hinder wider application. In this study, lignin‐based hydrogel is developed high tensile strain (≥350%), compressive (≈95%), fatigue resistance (up to 10 000 cycles under 50% strain, 200–800 95% strain), which achieved by incorporating glycerol lithium chloride facilitate dynamic hydrogen ion bonds, while accordingly reducing sites monomers. The enhanced allow effective performance at −40±1 °C. Afterward, using 3D printing technology, sensors ripple‐shaped 3 × Matrix pressure fabricated, demonstrated uniform stress distribution improved controlling complex movements, underscoring application advancing human–machine interfaces.

Язык: Английский

Процитировано

6

A tribo-piezoelectric coupled sensor for force and slip detection in soft grippers DOI

Wensong Diao,

Xiaoli Wang,

Wei Shi

и другие.

Nano Energy, Год журнала: 2025, Номер unknown, С. 110697 - 110697

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

3

Wearable and self-powered triboelectric sensors based on NaCl/PVA hydrogel for driver multidimensional information monitoring DOI

Fangyuan Luo,

Bin Chen, Ran Xu

и другие.

Nano Energy, Год журнала: 2023, Номер 118, С. 109035 - 109035

Опубликована: Окт. 29, 2023

Язык: Английский

Процитировано

30

A tri-modal tactile sensor based on porous ionic hydrogel for decoupled sensing of temperature and pressure DOI
Yangfan Liu,

Changliu He,

Jiahao Fang

и другие.

Materials Today Physics, Год журнала: 2024, Номер 41, С. 101331 - 101331

Опубликована: Янв. 17, 2024

Язык: Английский

Процитировано

18

Lignin‐Alkali Metal Ion Self‐Catalytic System Initiated Rapid Polymerization of Hydrogel Electrolyte with High Strength and Anti‐Freezing Ability DOI

Huawei Su,

Qingqing Guo, Congde Qiao

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Фев. 4, 2024

Abstract Hydrogel electrolyte is not resistant to freezing and has weak mechanical properties, its fabrication time‐consuming energy‐consuming, limiting application. Here, a simple, universal, fast gelation based on dealkaline lignin (DL) ‐alkali metal ions developed. The complex formed by catechol alkali promotes the equilibrium of redox reactions. produced SO 4 − ·, OH· singlet oxygen ( 1 O 2 ) radicals are responsible for rapid polymerization vinyl monomers. Alkali play dual role in frost resistance hydrogel electrolytes. By modulating mass ratio DL ion concentration, preferred can be fabricated an alkaline aqueous solution min at room temperature possesses excellent anti‐freezing performance (0.51 mS cm −1 −40 °C) strong properties (tensile stress: 0.4 MPa, strain: 1125%). electrolyte‐assembled supercapacitor exhibits high stability low temperatures. specific capacitance retention 89.7 % 88.7 after 5000 charge/discharge cycles 25 −20 °C, respectively. lignin‐alkali self‐catalytic system completely different from reported lignin‐oxidizing will open up new way ionic conductors energy storage devices.

Язык: Английский

Процитировано

18

Skeletal muscle regeneration with 3D bioprinted hyaluronate/gelatin hydrogels incorporating MXene nanoparticles DOI

Hyo Jung Jo,

Moon Sung Kang, Hye Jin Heo

и другие.

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 265, С. 130696 - 130696

Опубликована: Март 6, 2024

Язык: Английский

Процитировано

17

Biosensor-Driven IoT Wearables for Accurate Body Motion Tracking and Localization DOI Creative Commons
Nouf Abdullah Almujally, Danyal Z. Khan,

Naif Al Mudawi

и другие.

Sensors, Год журнала: 2024, Номер 24(10), С. 3032 - 3032

Опубликована: Май 10, 2024

The domain of human locomotion identification through smartphone sensors is witnessing rapid expansion within the realm research. This boasts significant potential across various sectors, including healthcare, sports, security systems, home automation, and real-time location tracking. Despite considerable volume existing research, greater portion it has primarily concentrated on activities. Comparatively less emphasis been placed recognition localization patterns. In current study, we introduce a system by facilitating both physical location-based utilizes capabilities to achieve its objectives. Our goal develop that can accurately identify different activities, such as walking, running, jumping, indoor, outdoor To this, perform preprocessing raw sensor data using Butterworth filter for inertial Median Filter Global Positioning System (GPS) then applying Hamming windowing techniques segment filtered data. We extract features from GPS select relevant variance threshold feature selection method. extrasensory dataset exhibits an imbalanced number samples certain address this issue, permutation-based augmentation technique employed. augmented are optimized Yeo–Johnson power transformation algorithm before being sent multi-layer perceptron classification. evaluate our K-fold cross-validation technique. datasets used in study Extrasensory Sussex Huawei Locomotion (SHL), which contain experiments demonstrate achieves high accuracy with 96% 94% over SHL activities 91% outperforming previous state-of-the-art methods recognizing types

Язык: Английский

Процитировано

17

Stretchable, flexible, and breathable MXene/dopamine/thermoplastic polyurethane nanofiber membrane with outstanding strain sensing and electromagnetic interference shielding performances DOI
Chengjian Zhang, Jiachun Li,

Yuewei Chen

и другие.

Materials Today Communications, Год журнала: 2024, Номер 38, С. 107968 - 107968

Опубликована: Янв. 3, 2024

Язык: Английский

Процитировано

16