Results 81 to 90 of about 156,245 (342)
Reconfigurable Metamirrors Based on Compliant Mechanisms
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy +3 more
wiley +1 more source
Isostaticity at Frictional Jamming
Amorphous packings of frictionless, spherical particles are isostatic at jamming onset, with the number of constraints (contacts) equal to the number of degrees of freedom.
O'Hern, Corey S. +2 more
core +1 more source
Estimation of coefficient of static friction with one-axis force sensor by observing peripheral local slips on elastic hemisphere [PDF]
Yusaku Tagawa +2 more
openalex +1 more source
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang +7 more
wiley +1 more source
Equilibrium of a wood stack formed by close-packed cylindrical logs [PDF]
The static equilibrium of cylindrical wood pieces in a close-packed order is analyzed. By considering the coefficient of static friction μ L between two adjacent logs and the coefficient of static friction μ G between the logs and the ground, it ...
R. De Luca
doaj +1 more source
Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li +12 more
wiley +1 more source
The study of Leymus chinensis seed cleaning has been hindered by the lack of accurate discrete-element contact parameters for seed–straw interactions, thereby limiting, to some extent, the optimization of cleaning equipment.
Qihao Wan +6 more
doaj +1 more source
Loose packings of frictional spheres
We have produced loose packings of cohesionless, frictional spheres by sequential deposition of highly-spherical, monodisperse particles through a fluid. By varying the properties of the fluid and the particles, we have identified the Stokes number (St) -
Attard +27 more
core +1 more source
In situ monitoring of bulk photoalignment reveals how molecular weight, azobenzene content, cooling rate, and thickness govern ordering in main‐chain liquid crystalline polymers. Optimized copolymers exceed conventional thickness limits, maintaining stable alignment up to 130 µm with high energy efficiency and reversible optical patterning.
Jaechul Ju +3 more
wiley +1 more source
The friction coefficient of two additives and two industry gear lubricant were investigated in the four ball tester,static and dynamic friction coefficient were investigated in stationary dynamic friction coefficient test machine.
夏延秋 +5 more
doaj

