Strain-gauge sensoring composite films with self-restoring water-repellent properties for monitoring human movements

Information Systems of Support of Pedagogical Control in the Physical Education of Students

“…We support scientific thinking about the need to innovate, fundamentally new approaches to the development of control theory in physical education (Feldman, 2016;Li, Ye, Shen, Xie, & Li, 2018), and offer a qualitatively new approach to the study of control implementation in this area of knowledge. In the methodological support of the control process of using automated systems, it is possible to reasonably build information models of the process of physical preparation of students (Kachan, 2017;Shyrobokov, Malinina, & Malinin, 2012).…”

A coating-free superhydrophobic sensing material for full-range human motion and microliter droplet impact detection

“…Of note, the average GF could reach as high as 214 even within a large strain range (up to 447%), indicating that the MRS material simultaneously demonstrates wide sensing range and high sensitivity, which makes it extremely competitive (Figure 4c). [22,23,25,26,28,29,30,38,39,40,41,42,43,44,45,46,47,48,49,50,51] The detailed information about the comparison of GF and maximum sensing range 12 between the MRS materials and other existing strain sensors is summarized in Supplementary Table S2. Moreover, the strain responses resulted from crack propagation during stretching, indicated by the SEM images of the MRS material under different strain (Supplementary Figure S8), which is in good agreement with the sensing mechanism reported among recent polymer/nanomaterials composites based stretchable strain sensors.…”

“…It should be noted that the dynamic durability in the present work is superior compared with existing superhydrophobic strain sensors to the best of our knowledge (Figure 4h and Supplementary Table S3). [23,24,25,26,27,28,29,30,53] The high dynamic durability of the MRS material is due to the following reasons: 1) the MWCNT networks were completely embedded into RTV substrate, hence the RTV substrate provided strong binding strength to MWCNT networks, which prevented conductive networks sliding away from RTV under dynamic loading. [54] 2) High elastic behavior and long length (up to 50 μm) of MWCNTs avoid plastic deformation and fracture of the conductive networks during multiple stretching processes, even at large strain.…”

“…[22] Superhydrophobic coatings are used as an alternative to plastic waterproofing for strain sensing materials to protect the sensors from harsh environments. [19,22,23,24,25,26,27,28,29,30,31] These achievements are indeed impressive, however, strain sensors with simultaneous demonstration of all the aforementioned desirable sensing performance and excellent mechanical performance remains a challenge. This is mostly because they are made of multiple layers; superhydrophobic structure is fragile and sensing networks are easily removed from elastic substrates under large, repeated or long term dynamic strains.…”

Environmentally Friendly Flexible Strain Sensor from Waste Cotton Fabrics and Natural Rubber Latex

“…An all-fibre hybrid piezoelectric-enhanced triboelectric nanogenerator was fabricated by electrospinning silk fibroin and polyvinylidene difluoride (PVDF) nanofibers onto conductive fabrics [21]. Screen printing of silver nanoparticles on TPU substrate [22] and deposition of conductive components via vacuum filtering [13,23] have also been used in attempts to prepare flexible sensors. In a braiding approach, sensors were fabricated by braiding conductive fibers into a woven fabric, which was then covered with a polymer substrate [6,24].…”