نتایج جستجو برای: mechanical force

تعداد نتایج: 408633  

Journal: :The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 1879

Journal: :The Journal of Cell Biology 2002
Catherine G. Galbraith Kenneth M. Yamada Michael P. Sheetz

To adhere and migrate, cells must be capable of applying cytoskeletal force to the extracellular matrix (ECM) through integrin receptors. However, it is unclear if connections between integrins and the ECM are immediately capable of transducing cytoskeletal contraction into migration force, or whether engagement of force transmission requires maturation of the adhesion. Here, we show that initi...

2012
Keith C. Schwab

verything moves! In a world dominated by electronic devices and instruments it is easy to forget that all measurements involve motion, whether it be the motion of electrons through a transistor, Cooper pairs or quasiparti-cles through a superconducting quantum interference device (SQUID), photons through an optical interferome-ter—or the simple displacement of a mechanical element. Nanoscience ...

In this research, microstructure and mechanical properties of laser welded joints between 2304 duplex stainless steel and Inconel 718 nickel-based super alloy were investigated. Microstructural evolution in the various areas of welded joints and also the effect of welding parameters on the mechanical properties of dissimilar joints were studied. Response surface methodology based on the central...

2009
Qiang Lin Jessie Rosenberg Darrick Chang Ryan Camacho Matt Eichenfield Kerry J. Vahala Oskar Painter

The combination of the large per-photon optical force and small motional mass achievable in nanocavity optomechanical systems results in strong dynamical back-action between mechanical motion and the cavity light field. In this Article, we study the optical control of mechanical motion within two different nanocavity structures, a zipper nanobeam photonic crystal cavity and a double-microdisk w...

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