Accurate determination of the pull-in, or the collapse voltage is critical in the design process. In this paper an analytical method is presented that provides a more accurate determination of the pull-in voltage for MEMS capacitive devices with clamped square diaphragm. The method incorporates both the linearized modle of the electrostatic force and the nonlinear deflection model of a clamped ...

We consider the von Kármán nonlinearity and the Casimir force to develop reduced-order models for prestressed clamped rectangular and circular electrostatically actuated microplates. Reduced-order models are derived by taking flexural vibration mode shapes as basis functions for the transverse displacement. The in-plane displacement vector is decomposed as the sum of displacements for irrotatio...

What are microtubules? One of three types of protein polymer that make up the cellular cytoskeleton, an elaborate array of filaments that are used to establish cell shape, facilitate cell motility, organize organelles and assist with cell division. Microtubules are stiff tubes, about 25 nm in diameter. During interphase, they serve as tracks on which organelles and the nucleus are positioned by...

Static circuit gates are the standard circuit devices used to build the major parts of digital circuits. Dynamic gates, such as domino circuits, are only used in certain sections of the circuit where speed is critical. These gates achieve higher speed compared to static gates at the cost of reduced noise margins. We propose a novel gate structure that tries to improved noise margin when compare...

Louis Reese1,2,∗ Anna Melbinger, and Erwin Frey1,2† Arnold-Sommerfeld-Center for Theoretical Physics and Center for NanoScience, Department of Physics, Ludwig-Maximilians-Universität München, Theresienstr. 37, 80333 Munich, Germany; Nanosystems Initiative Munich (NIM), Ludwig-Maximilians-Universität München, Schellingstraße 4, D-80333 Munich, Germany; Department of Physics, University of Califo...

  Dislocation of the first carpometacarpal (CMC) is a rare occurrence. Treatment of this dislocation varies from closed reduction and casting to ligament repair. Neglected dislocation or incomplete reduction of the 1st CMC cause chronic instability and painful arthritis, muscle imbalance and decreased grip force. In our study 6 patients is evaluated that were visited in less than 24 hours from ...

A dynamic data dissemination network is a content delivery network (CDN) implemented with a hierarchical network of data aggregators (repositories) for disseminating dynamic data like stock quotes, number of votes polled for a political party in an election in different regions and environmental parameters. Continuous aggregate query is a query with aggregation operations and is repeatedly requ...

Based on the nonlocal Timoshenko beam theory, the dynamic stability of functionally gradded (FG) nanoeams under axial load is studied in thermal environment, with considering surface effect. It is used power law distribution for FGM and the surface stress effects are considered based on Gurtin-Murdoch continuum theory. Using Von Karman geometric nonlinearity, governing equations are derived bas...

Microtubules (MTs) are cytoplasmic protein polymers that are essential for fundamental cellular processes including the maintenance of cell shape, organelle transport and formation of the mitotic spindle. Microtubule dynamic instability is critical for these processes, but it remains poorly understood, in part because the relationship between the structure of the MT tip and the growth/depolymer...