Results 131 to 140 of about 83,680 (288)

Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors

Advanced Materials Technologies, EarlyView.
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang, Benji Fenech‐Salerno, Antonio Alessio Leonardi, Federico La Barbera, Felice Torrisi   +4 more
wiley   +1 more source

Calculating the fatigue strength of load-bearing structures of special self-propelled rolling stock

Scientific Reports
This research primarily focuses on the strength indicators of the bearing structures of ADM-1 special self-propelled rolling stock. The special self-propelled rolling stock used by Uzbek railroads reaching the end of their functional life is a pertinent ...
Ziyoda Mukhamedova, Sherzod Fayzibayev, Dilbar Mukhamedova, Aida M. Batirbekova, Kamila Jurayeva, Gushan Ibragimova, Zakhro Ergasheva   +6 more
doaj   +1 more source

Galinstan Liquid Metal/Polyurethane Composite as a Multifunctional Stretchable Electrode and Piezoresistive Strain Sensor With Minimal Drift

Advanced Materials Technologies, EarlyView.
Liquid metal additives are processed in elastomer host resulting in highly conductive and stretchable composites. The material functions as a piezoresistive sensor with minimal drift, low stiffness, and enhanced operating range. The film can replace wires to charge a mobile phone at ∼350% strain and monitors bodily motion in real‐time via a portable ...
Patryk Wojciak, Neeraj Kumar, Toby Hallam, Shayan Seyedin   +3 more
wiley   +1 more source

Graphene‐Interfaced Stretchable Sweat Patch for Multiplexed Electrochemical Monitoring of IL‐6, Glucose, and Calcium Ions

Advanced Materials Technologies, EarlyView.
Flexible sweat sensor patch integrating graphene‑interfaced gold microelectrodes functionalized with bio‑receptors and ion‑selective membrane, coupled with a capillary‑driven microfluidic layer and portable potentiostat electronics for multiplexed monitoring of inflammatory, metabolic, and electrolyte biomarkers in microliter sweat volumes.
Roomia Memon, Ali Tufani, Süleyman Çelik, Javed H. Niazi, Anjum Qureshi   +4 more
wiley   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Justification of requirements for air pressure in car tires during tests on roller stands

Вестник СибАДИ
Introduction. Traction and power parameter’s monitoring of wheeled vehicles are often performed on roller stands. The accuracy of determining the traction force in the contact patch of the elastic tire of an automobile wheel with the cylindrical surface ...
A. I. Fedotov, O. S. Yankov, A. V. Kamnev   +2 more
doaj   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

Advanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

State and Trends of Harmonization of Automobile Tire Parameters, Their Implementation in the Union State

Механика машин, механизмов и материалов
The article presents the analysis of technical requirements for automobile tires, which have a direct impact on the safety of wheeled vehicles by increasing the adhesion of tires to a support surface with low adhesion coefficients, wet asphalt, rolled ...
Boris V. Kisulenko
doaj   +1 more source

Influence of Tire Tread Pattern and Runway Surface Condition on Braking Friction and Rolling Resistance of a Modern Aircraft Tire [PDF]

A series of taxiing tests was conducted at the Langley landing loads track with both braked and unbraked (freely rolling) single and tandem wheels equipped with 32x8.8 type VII aircraft tires of different tread designs to obtain data on tire and braking ...
Horne, Walter B., Leland, Trafford J. W.
core   +1 more source

METHODOLOGY FOR DETERMINING THE COEFFICIENTS OF AERODYNAMIC DRAG AND ROLLING RESISTANCE OF ROAD TRAIN TIRES IN COASTING MODE

Mechanics of Machines, Mechanisms and Materials
To analyze the fuel balance and optimize the fuel efficiency indicators of wheeled vehicles (WVs) using mathematical models, developers require a large number of design parameters as input data. Among them are losses in the transmission, aerodynamic drag of the WVs and tire rolling resistance. Many methods are developed to investigate these parameters,
openaire   +1 more source