Results 61 to 70 of about 330,842 (347)
Reconfigurable Metamirrors Based on Compliant Mechanisms
Advanced Functional Materials, EarlyView.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
Simplified Pressure Drop Model for Laminar Helical Flow of Power Law Fluid
Shiyou jixie, 2020 The theoretical models for predicting the pressure drop of the laminar helical flow of power-law fluids require tedious and complicated numerical calculations, which are difficult to directly apply to the field.
Zhai Kejun, Yu Yang, He Lang, Tang Ming
doaj
Control-volume based Navier-Stokes equation solver valid at all flow velocities [PDF]
A control-volume based finite difference method to solve the Reynolds averaged Navier-Stokes equations is presented. A pressure correction equation valid at all flow velocities and a pressure staggered grid layout are used in the method. Example problems
Kim, S.-W.
core +1 more source
A mathematical clue to the separation phenomena on the two-dimensional Navier-Stokes equation [PDF]
, 2012 In general, before separating from a boundary, the flow moves toward reverse direction near the boundary against the laminar flow direction. Here in this paper, a clue to such reverse flow phenomena (in the mathematical sense) is observed. More precisely,
Yoneda, Tsuyoshi
core +2 more sources
Near‐Sensor Analog Computing via Monolithic 3D Piezoelectric Sensor–FeFET for Tactile Sensing System
Advanced Functional Materials, EarlyView.A monolithic 3D‐integrated tactile system combines a piezoelectric sensor and ferroelectric field‐effect transistor (FeFET) to process both static and dynamic pressure signals directly at the sensor node. The system enables in‐sensor analog noise filtering with multi‐level memory states, achieving high sensitivity and ultra‐low power operation (≈10 nW),
Woongjin Kim +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Herein, the topochemical transformation of cobalt‐based layered hydroxides into nanocomposites is investigated using advanced real‐time characterization techniques combined with thermogravimetric analysis. The study reveals how interlayer carboxylic acids direct the transformation pathway, highlighting the role of carbon content and anion length. These
Camilo Jaramillo‐Hernández +5 more
wiley +1 more source
Hydrodynamics of the Cylinder Rotating in the Unbounded Viscous Medium
Механика машин, механизмов и материалов, 2009 It is shown, that at first a laminar flow around rotating cylinder with growth of Reynolds number passes into a pseudo-laminar flow, and then into a steady turbulent flow.
Ed.A. Bulanov
doaj
On the generation of drift flows in wall-bounded flows transiting to turbulence
Theoretical and Applied Mechanics Letters, 2018 : Despite recent progress, laminar-turbulent coexistence in transitional planar wall-bounded shear flows is still not well understood. Contrasting with the processes by which chaotic flow inside turbulent patches is sustained at the local (minimal flow ...
Paul Manneville
doaj +1 more source
Polymer Maximum Drag Reduction: A Unique Transitional State [PDF]
, 2010 The upper bound of polymer drag reduction is identified as a unique transitional state between laminar and turbulent flow corresponding to the onset of the nonlinear breakdown of flow ...
Dubief, Yves +3 more
core
Advanced Functional Materials, EarlyView.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