Results 81 to 90 of about 5,179,304 (300)

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Orthogonal Optimization Method of Dynamic Stiffness of Machine Tool Joints Based on Modal Flexibility

open access: yes工程科学与技术, 2013
:To satisfy the requirements of distributing the dynamic stiffness of machine tool joints,an optimization design method for dynamic stiffness of machine tool joints based on the theory of modal flexibility was proposed.Weak modes that had significant ...
孙明楠, 殷国富, 胡腾
doaj  

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

open access: yesAdvanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo   +7 more
wiley   +1 more source

Dynamic stiffness of spin valves

open access: yesPhysical Review B, 2003
4 pages, 2 ...
Tserkovnyak, Y. (author)   +2 more
openaire   +4 more sources

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Dynamic Direct Stiffness Method

open access: yes, 2021
The procedure presented in Chap. 8 for the determination of free vibration characteristics of the structural member, by considering it as a system having distributed mass, requires the evaluation of constants which are dependent on the boundary conditions.
openaire   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Air Spring Dynamic Stiffness Analysis Based on Fluid-structure Coupling Method

open access: yes机车电传动, 2016
To explore the dynamic stiffness characteristics of air spring, based on the CFD and the fluid-structure coupling method, the finite element solid model of the air spring with an auxiliary chamber was constructed in the ABAQUS, and internal gas part of ...
WANG Yan, LI Dongxu, ZHANG Deqian
doaj  

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