نتایج جستجو برای: electromechanical device

تعداد نتایج: 684387  

2016
M. A. A. Hafiz L. Kosuru M. I. Younis

In modern computing, the Boolean logic operations are set by interconnect schemes between the transistors. As the miniaturization in the component level to enhance the computational power is rapidly approaching physical limits, alternative computing methods are vigorously pursued. One of the desired aspects in the future computing approaches is the provision for hardware reconfigurability at ru...

2005
Alexandre B. Nassif Luiz C. P. da Silva Maurício C. de Oliveira Vivaldo F. da Costa

This work investigates the effects of the STATCOM (Static Synchronous Compensator), a FACTS (Flexible AC Transmission Systems) device, on small-signal power system angle stability. This investigation is carried out for a single machine connected to an infinite bus via a loss-less transmission line. The study is based on investigation of the eigenvalues of the linearized power system model in th...

2014
Ann L. Edwards Michael R. Dawson Jacqueline S. Hebert Richard S. Sutton K. Ming Chan Patrick M. Pilarski

Myoelectrically controlled prostheses are a class of assistive device that use electrical signals generated by muscle activation. These electromyographic (EMG) signals are used to control one or more electromechanical actuators that move prosthetic joints. Myoelectric control signals are typically measured with electrodes on the surface of the skin, with one pair of electrodes over each muscle ...

2007
James P. Mosman Timothy J. McCoy

Field studies have demonstrated that it is possible to evaluate the state of many shipboard systems by analyzing the electrical power that is drawn by electromechanical actuators (Ramsey, 2005; DeNucci, 2005; Greene, 2005). This paper describes how a device known as a nonintrusive load monitor (NILM) uses electrical power measurements to detect the presence of leaks in shipboard cycling systems...

Journal: :Small 2005
Jien Cao Qian Wang Dunwei Wang Hongjie Dai

Suspended single-walled carbon nanotube devices comprised of high-quality electrical contacts and two electrostatic gates per device have been prepared. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis related to environmental factors and act as cleaner Fabry-Perot interferometers or single-electron transistors. The high-field saturation currents in th...

2016
Colin R. McInnes C. R. McInnes

A continuity equation is developed to model the evolution of a swarm of selfpropelled ‘smart dust’ devices in heliocentric orbit driven by solar radiation pressure. These devices are assumed to beMEMs-scale (micro-electromechanical systems) with a large areato-mass ratio. For large numbers of devices it will be assumed that a continuumapproximation can be used to model their orbit evolution. Th...

Journal: :Nano letters 2017
Joel Berry Songsong Zhou Jian Han David J Srolovitz Mikko P Haataja

Current interest in two-dimensional (2D) materials is driven in part by the ability to dramatically alter their optoelectronic properties through strain and phase engineering. A combination of these approaches can be applied in quasi-2D transition metal dichalcogenide (TMD) monolayers to induce displacive structural transformations between semiconducting (H) and metallic/semimetallic (T') phase...

Journal: :Nature communications 2012
M T Allen J Martin A Yacoby

Quantum-confined devices that manipulate single electrons in graphene are emerging as attractive candidates for nanoelectronics applications. Previous experiments have employed etched graphene nanostructures, but edge and substrate disorder severely limit device functionality. Here we present a technique that builds quantum-confined structures in suspended bilayer graphene with tunnel barriers ...

Journal: :Artif. Intell. 1996
P. Pandurang Nayak Leo Joskowicz

Effective problem solving requires building adequate models that embody the simplifications, abstractions, and approximations that parsimoniously describe the relevant system phenomena for tbe task at hand. Compositional modeling is a framework for constructing adequate device models by composiqg model fragments selected from a model fragment library. While model selection using compo,sitional ...

Journal: :Journal of mechanical ventilation 2021

Ventilator care is synonymous with Intensive care. These devices are electromechanical and as such can fail. Most failures without patient incident, injury, harm. The FDA requires manufacturers who learn of malfunction, injury or death while operating their product to report the agency via Manufacturer User Facility Device Experience database. I reviewed 500 recent events reported found an incr...

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