Results 1 to 10 of about 248 (97)

Experimental Research of Wear-Fatigue Damage for Mechano-Sliding Fatigue of the 0,45% Carbon Steel-Siluminum Active System [PDF]

Механика машин, механизмов и материалов, 2011
The operation purpose is the experimental research of damage's regularities for a metal-to-metal active system at sliding and mechano-sliding fatigue tests. In the report the test technique is given.
A.V. Bogdanovich , I.N. Lis , O.M. Yelovoy   +2 more
doaj   +7 more sources

Prediction of the Durability of the Grain Harvester Reel Support Bearing Operating under Irregular Load under Mechano-Sliding Fatigue

Механика машин, механизмов и материалов, 2022
The calculation scheme of the reel of the combine harvester “Lida-1300” is given. The operating time of the bearing of reel support for service life of the combine, the frictional loads of the bearing and the bending stresses of the shaft are determined.
Ivan N. Lis
doaj   +2 more sources

Features of Limiting State Diagrams for Active Systems under Mechano-Sliding Fatigue

Механика машин, механизмов и материалов
Experimental diagrams of limiting states of active systems under conditions of mechano-sliding fatigue are presented, as well as their analytical description.
Alexander V. Bogdanovich
doaj   +2 more sources

Recent Progress in Mechanoluminescence for Multi-Dimensional Stress Monitoring. [PDF]

Adv Sci (Weinh)
Multi‐dimensional stress visualization technology (0D point detection, 1D linear distribution, 2D planar imaging, 3D volume reconstruction) has become a focus of attention in the field of stress sensing. The transition from “points” to “multi‐dimensional spatial fields” facilitates real‐time, in situ, and high‐resolution visualization of stress ...
Yang X, Wang T, Zhao L, Xu X.
europepmc   +2 more sources

Biocompatible PVDF Nanofibers with Embedded Magnetite Nanodiscs Enable Wireless Magnetoelectric Stimulation in Premotor Cortex. [PDF]

Adv Healthc Mater
Flexible, biocompatible PVDF nanofibers embedded with magnetite nanodiscs enable wireless magnetoelectric neuromodulation. Shape anisotropy of the nanodiscs facilitates magnetostrictive strain transfer under alternating magnetic fields, allowing activation of neurons in vitro and behavioral modulation in vivo, without requiring rigid implants or ...
Signorelli L, Wolters A, Durán Toro V, Englhard J, Baghini MS, Koçar E, Wasner F, Goldenstein NI, Heidari H, Bachmann J, Hescham S, Gregurec D.   +11 more
europepmc   +2 more sources

Strain-Sensitive Thermochromic Smart Electronic Skin for Joint and Spine Healthcare Applications. [PDF]

Adv Sci (Weinh)
iStretch, a multifunctional e‐skin integrating durable strain sensing, adaptive heat therapy, and visual feedback, is presented for joint and spine rehabilitation. Featuring a bilayer graphene–liquid metal design, iStretch offers high sensitivity, real‐time responsiveness, and user interactivity, enabling personalized musculoskeletal care through ...
Fan S, Chen S, Qiao Z, Qi J, Wu Z, Lim CT.   +5 more
europepmc   +2 more sources

An Energetic Analysis of Limiting States for the 0,45% Carbon Steel - Siluminum Active System at Mechano-Sliding Fatigue (Back Effect)

Механика машин, механизмов и материалов, 2014
Mechanical test results for the active system the cylindrical specimen of the 0,45% carbon steel - counter body as a partial liner from siluminum at mechano-sliding fatigue are given.
L.A. Sosnovskiy, A.V. Bogdanovich , I.N. Lis   +2 more
doaj   +1 more source

Empowering Flexible Electronics with Piezoelectric Nanogenerators: Breakthroughs from Energy Harvesting to Intelligent Sensing. [PDF]

Adv Sci (Weinh)
This review systematically summarizes recent advances in self‐powered flexible sensing and energy storage systems based on piezoelectric nanogenerators (PENGs). It highlights their fundamental mechanisms, structural designs, and applications in health monitoring, e‐skin, and tactile sensing. The integration of PENGs with supercapacitors or batteries is
Xin WL, Cai HQ, Cui X, Han L, Zhang K, Xue XY, Song YF, Liu J, Li Z.   +8 more
europepmc   +2 more sources

Tribo-Fatigue Systems Operating under the Conditions of Mechano-Sliding Fatigue: Forecasting of Durability on the Basis of Energy Criterion

Механика машин, механизмов и материалов, 2020
The article gives the description of the calculation and experimental assessment of the durability and other characteristics of the resistance to wear-and-fatigue damage to a “shaft – liner” active system under regular and irregular loading for mechano ...
Ivan N. Lis, Alexander V. Bogdanovich
doaj   +1 more source

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

Advanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan, Chenzhuo Li, Antonia Georgopoulou, John M. Kolinski, Esther Amstad   +4 more
wiley   +1 more source