Results 141 to 150 of about 158,333 (341)
Studies on the Oiliness of Liquids. IV. Measurements of the Static Friction Coefficients by the Method of Inclination [PDF]
, 1937 Jitsusaburo Sameshima, Yasuji Tsubuku
openalex +1 more source
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 +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 +4 more
wiley +1 more source
On the Dependence of Static Friction Coefficient on Normal Load
Tribology LettersAbstract In recent interesting experiments, Peng et al. ((2015) PRL, 134, 176202) have shown that the static friction coefficient in a spherical contact drops of a factor close to 2 over 3 decades of increase of normal load, converging to a dynamic friction coefficient.
openaire +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
Investigation of static and dynamic coefficient of friction [PDF]
, 1963 Manjoine, M.J., Harrington, G.H.
openaire +2 more sources
Advanced Optical Materials, EarlyView.It is demonstrated that in chiral ferroelectric nematic liquid crystals sandwiched between electrically conducting transparent plates, the reflection color can be reversibly tuned by electric fields applied along the helix axis. The proposed theoretical model, assuming field‐induced coiling of the helix axis, accounts for all observations.
Md Sakhawat Hossain Himel +5 more
wiley +1 more source
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
COEFFICIENT OF STATIC FRICTION OF BENISEED FOR MILD STEEL, PLYWOOD, CONCRETE AND GLASS STRUCTURAL SURFACES [PDF]
, 2019 T.M.A. Olayanju +7 more
openalex